/* roulang page: index */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #e74c3c;
            --color-gold: #f39c12;
            --color-bg: #f5f5f5;
            --color-white: #ffffff;
            --color-text: #1a1a1a;
            --color-text-light: #666666;
            --color-text-muted: #999999;
            --color-border: #e0e0e0;
            --color-dark-bg: #1a1a1a;
            --color-topbar-bg: #111111;
            --color-topbar-text: #aaaaaa;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-xxl: 80px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            padding-top: 100px;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #c0392b;
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ========== TOP BAR ========== */
        .top-bar-custom {
            background: var(--color-topbar-bg);
            height: 40px;
            line-height: 40px;
            font-size: 12px;
            color: var(--color-topbar-text);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            padding: 0 var(--spacing-md);
        }
        .top-bar-custom .top-left {
            float: left;
            font-size: 12px;
            letter-spacing: 0.3px;
        }
        .top-bar-custom .top-left span {
            color: #ccc;
            margin: 0 4px;
        }
        .top-bar-custom .top-right {
            float: right;
        }
        .top-bar-custom .top-right a {
            color: var(--color-topbar-text);
            font-size: 12px;
            margin-left: 16px;
            transition: color var(--transition-fast);
        }
        .top-bar-custom .top-right a:hover {
            color: var(--color-accent);
        }
        .top-bar-custom::after {
            content: '';
            display: table;
            clear: both;
        }

        /* ========== MAIN NAV ========== */
        .main-nav {
            background: var(--color-white);
            height: 60px;
            position: fixed;
            top: 40px;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-normal);
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
        }
        .main-nav.scrolled {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }
        .nav-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: var(--color-primary);
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li {
            margin: 0;
        }
        .nav-links a {
            display: block;
            padding: 8px 16px;
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.5px;
        }
        .nav-links a:hover {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.04);
        }
        .nav-links a.active {
            color: var(--color-accent);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .nav-links .dropdown-trigger {
            position: relative;
        }
        .nav-links .dropdown-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            min-width: 180px;
            z-index: 100;
            padding: 8px 0;
            list-style: none;
            margin: 4px 0 0;
        }
        .nav-links .dropdown-trigger:hover .dropdown-menu {
            display: block;
        }
        .nav-links .dropdown-menu li a {
            padding: 10px 20px;
            font-size: 13px;
            border-radius: 0;
            display: block;
        }
        .nav-links .dropdown-menu li a:hover {
            background: #f9f9f9;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--color-primary);
            padding: 8px;
            line-height: 1;
        }
        .nav-toggle:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 100px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 100px;
            right: 0;
            width: 280px;
            bottom: 0;
            background: var(--color-white);
            z-index: 1000;
            padding: 20px;
            overflow-y: auto;
            box-shadow: -4px 0 16px rgba(0, 0, 0, 0.1);
            transform: translateX(100%);
            transition: transform var(--transition-normal);
        }
        .mobile-nav-panel.open {
            transform: translateX(0);
        }
        .mobile-nav-panel a {
            display: block;
            padding: 12px 16px;
            color: var(--color-primary);
            font-size: 15px;
            border-radius: var(--radius-sm);
            margin-bottom: 4px;
            transition: all var(--transition-fast);
            font-weight: 500;
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.04);
        }
        .mobile-nav-panel .dropdown-menu-mobile {
            padding-left: 16px;
            list-style: none;
            margin: 0;
        }
        .mobile-nav-panel .dropdown-menu-mobile a {
            font-size: 13px;
            padding: 8px 16px;
        }

        /* ========== HERO ========== */
        .hero-section {
            background: linear-gradient(rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.65)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 70vh;
            display: flex;
            align-items: center;
            padding: var(--spacing-xxl) 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--color-bg), transparent);
        }
        .hero-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: 1fr 1.4fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .hero-value-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: #fff;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            border-left: 3px solid var(--color-accent);
            transition: all var(--transition-normal);
        }
        .hero-value-item:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateX(4px);
        }
        .hero-value-item .val-icon {
            font-size: 22px;
            color: var(--color-gold);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .hero-value-item .val-text {
            font-size: 14px;
            line-height: 1.5;
            font-weight: 500;
        }
        .hero-value-item .val-text strong {
            display: block;
            font-size: 15px;
            color: #fff;
            margin-bottom: 2px;
        }
        .hero-center {
            text-align: center;
            position: relative;
        }
        .hero-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
            animation: heroBadgeIn 0.8s ease forwards;
        }
        @keyframes heroBadgeIn {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .hero-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 56px;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 2px;
            animation: heroTitleIn 1s ease forwards;
        }
        @keyframes heroTitleIn {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .hero-title .highlight {
            color: var(--color-gold);
        }
        .hero-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 500px;
            margin: 0 auto 24px;
            animation: heroSubIn 1.2s ease forwards;
        }
        @keyframes heroSubIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .hero-dashboard {
            background: rgba(26, 26, 26, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 20px;
            margin: 0 auto;
            max-width: 460px;
            animation: heroDashboardIn 1.4s ease forwards;
            backdrop-filter: blur(8px);
        }
        @keyframes heroDashboardIn {
            from {
                opacity: 0;
                transform: scale(0.95);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }
        .hero-dashboard .dash-row {
            display: flex;
            gap: 10px;
            margin-bottom: 10px;
        }
        .hero-dashboard .dash-row:last-child {
            margin-bottom: 0;
        }
        .hero-dashboard .dash-block {
            flex: 1;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 6px;
            padding: 10px 14px;
            text-align: center;
        }
        .hero-dashboard .dash-block .dash-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-gold);
            font-family: var(--font-heading);
        }
        .hero-dashboard .dash-block .dash-label {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
            letter-spacing: 0.5px;
        }
        .hero-dashboard .dash-bar {
            height: 6px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 3px;
            margin-top: 6px;
            overflow: hidden;
        }
        .hero-dashboard .dash-bar-fill {
            height: 100%;
            background: var(--color-accent);
            border-radius: 3px;
            animation: barFill 2s ease forwards;
        }
        @keyframes barFill {
            from {
                width: 0%;
            }
            to {
                width: 78%;
            }
        }
        .hero-right {
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: center;
        }
        .hero-cta-group {
            display: flex;
            flex-direction: column;
            gap: 12px;
            width: 100%;
            max-width: 200px;
        }
        .btn-primary-lg {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            text-align: center;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .btn-primary-lg:hover {
            background: #c0392b;
            color: #fff;
            box-shadow: 0 0 20px rgba(231, 76, 60, 0.4);
            transform: translateY(-1px);
        }
        .btn-primary-lg .arrow-icon {
            display: inline-block;
            margin-left: 6px;
            animation: arrowPulse 1.5s ease infinite;
        }
        @keyframes arrowPulse {
            0%,
            100% {
                transform: translateX(0);
            }
            50% {
                transform: translateX(4px);
            }
        }
        .btn-outline-lg {
            display: inline-block;
            background: transparent;
            color: #fff;
            padding: 13px 26px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            text-align: center;
            letter-spacing: 0.5px;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        .btn-outline-lg:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .hero-stat-mini {
            display: flex;
            gap: 20px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 12px;
            letter-spacing: 0.5px;
        }
        .hero-stat-mini span {
            color: var(--color-gold);
            font-weight: 600;
            font-size: 16px;
        }

        /* ========== SECTION COMMON ========== */
        section {
            padding: var(--spacing-xl) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }
        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 32px;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: 1px;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 16px;
            color: var(--color-text-light);
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== CATEGORY ENTRY ========== */
        .category-entry-section {
            background: var(--color-white);
            padding: var(--spacing-lg) 0;
        }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 16px;
        }
        .category-card {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-md);
            background: var(--color-bg);
            transition: all var(--transition-normal);
            cursor: pointer;
            border: 1px solid transparent;
            display: block;
            color: var(--color-text);
        }
        .category-card:hover {
            background: var(--color-white);
            border-color: var(--color-border);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            color: var(--color-text);
        }
        .category-card .cat-icon {
            font-size: 32px;
            color: var(--color-accent);
            margin-bottom: 10px;
            transition: transform var(--transition-normal);
        }
        .category-card:hover .cat-icon {
            transform: scale(1.1);
        }
        .category-card .cat-name {
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 4px;
            letter-spacing: 0.5px;
        }
        .category-card .cat-count {
            font-size: 11px;
            color: var(--color-text-muted);
        }

        /* ========== METRICS DASHBOARD ========== */
        .metrics-section {
            background: var(--color-bg);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .metric-card .metric-icon {
            font-size: 28px;
            color: var(--color-accent);
            margin-bottom: 10px;
        }
        .metric-card .metric-number {
            font-size: 48px;
            font-weight: 700;
            color: var(--color-accent);
            font-family: var(--font-heading);
            line-height: 1;
            margin-bottom: 8px;
        }
        .metric-card .metric-unit {
            font-size: 16px;
            font-weight: 400;
            color: var(--color-text-light);
        }
        .metric-card .metric-label {
            font-size: 13px;
            color: var(--color-text-light);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }
        .metric-card .metric-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            margin-top: 6px;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix-section {
            background: var(--color-white);
        }
        .service-matrix {
            display: grid;
            grid-template-columns: 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 24px;
        }
        .service-block {
            border-radius: 0;
            overflow: hidden;
            transition: all var(--transition-normal);
            position: relative;
            border: 1px solid var(--color-border);
            background: #fafafa;
        }
        .service-block:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .service-block.full-width {
            grid-column: 1 / -1;
            display: grid;
            grid-template-columns: 1fr 1fr;
        }
        .service-block .svc-img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            display: block;
        }
        .service-block.full-width .svc-img {
            height: 100%;
            min-height: 300px;
        }
        .service-block .svc-content {
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .service-block .svc-icon {
            font-size: 36px;
            color: var(--color-accent);
            margin-bottom: 12px;
        }
        .service-block .svc-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }
        .service-block .svc-desc {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .service-block .svc-link {
            font-weight: 600;
            font-size: 14px;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast);
        }
        .service-block .svc-link:hover {
            gap: 10px;
            color: #c0392b;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-section {
            background: #f9f9f9;
            position: relative;
            overflow: hidden;
        }
        .brand-intro-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(231, 76, 60, 0.04);
            pointer-events: none;
        }
        .brand-intro-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .brand-intro-text h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 28px;
            color: var(--color-primary);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .brand-intro-text p {
            font-size: 15px;
            color: var(--color-text-light);
            line-height: 1.9;
            margin-bottom: 12px;
        }
        .brand-intro-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .brand-intro-img img {
            width: 100%;
            height: auto;
            display: block;
        }
        .brand-highlights {
            display: flex;
            gap: 20px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .brand-highlight-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary);
            background: #fff;
            padding: 8px 16px;
            border-radius: 20px;
            border: 1px solid var(--color-border);
        }
        .brand-highlight-item i {
            color: var(--color-accent);
            font-size: 14px;
        }

        /* ========== COMPARISON ========== */
        .comparison-section {
            background: var(--color-white);
        }
        .comparison-table-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .comp-col {
            padding: 0;
        }
        .comp-col-header {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 16px;
            text-align: center;
            letter-spacing: 1px;
        }
        .comp-col.old .comp-col-header {
            background: #f5f5f5;
            color: #888;
        }
        .comp-col.new .comp-col-header {
            background: var(--color-accent);
            color: #fff;
        }
        .comp-row {
            display: flex;
            border-bottom: 1px solid #f0f0f0;
        }
        .comp-row:last-child {
            border-bottom: none;
        }
        .comp-cell {
            flex: 1;
            padding: 16px 20px;
            font-size: 14px;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .comp-cell i.fa-check {
            color: #27ae60;
            font-size: 16px;
        }
        .comp-cell i.fa-times {
            color: #ccc;
            font-size: 16px;
        }
        .comp-cell .comp-highlight {
            color: var(--color-accent);
            font-weight: 600;
        }
        .comp-label-col {
            background: #fafafa;
            font-weight: 600;
            font-size: 13px;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            min-width: 120px;
            display: flex;
            align-items: center;
            padding: 16px 20px;
            border-right: 1px solid #f0f0f0;
        }

        /* ========== RESOURCE LIST ========== */
        .resource-section {
            background: var(--color-bg);
        }
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .resource-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .resource-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .resource-card .res-content {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .resource-card .res-tag {
            display: inline-block;
            font-size: 11px;
            background: rgba(231, 76, 60, 0.1);
            color: var(--color-accent);
            padding: 4px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
            font-weight: 500;
            letter-spacing: 0.5px;
            align-self: flex-start;
        }
        .resource-card .res-title {
            font-weight: 600;
            font-size: 16px;
            margin-bottom: 8px;
            color: var(--color-primary);
            line-height: 1.4;
        }
        .resource-card .res-desc {
            font-size: 13px;
            color: var(--color-text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .resource-card .res-link {
            font-weight: 600;
            font-size: 13px;
            color: var(--color-accent);
            align-self: flex-start;
        }

        /* ========== NEWS ========== */
        .news-section {
            background: var(--color-white);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .news-card {
            background: #fafafa;
            border: 1px solid #f0f0f0;
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: transparent;
            transform: translateY(-2px);
        }
        .news-card .news-date-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 3px;
            font-weight: 500;
            letter-spacing: 0.5px;
            align-self: flex-start;
            margin-bottom: 10px;
        }
        .news-card .news-title {
            font-weight: 600;
            font-size: 16px;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }
        .news-card .news-excerpt {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .news-card .news-link {
            font-weight: 600;
            font-size: 13px;
            color: var(--color-accent);
            align-self: flex-end;
            transition: all var(--transition-fast);
        }
        .news-card .news-link:hover {
            color: #c0392b;
        }

        /* ========== SOCIAL PROOF ========== */
        .social-proof-section {
            background: #f9f9f9;
        }
        .social-proof-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .social-proof-item {
            padding: 24px;
        }
        .social-proof-item .sp-number {
            font-size: 40px;
            font-weight: 700;
            color: var(--color-accent);
            font-family: var(--font-heading);
            line-height: 1;
            margin-bottom: 6px;
        }
        .social-proof-item .sp-label {
            font-size: 13px;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
        }
        .social-proof-stars {
            color: var(--color-gold);
            font-size: 18px;
            letter-spacing: 2px;
            margin-bottom: 4px;
        }
        .social-proof-item .sp-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ========== HOT LIST ========== */
        .hot-list-section {
            background: var(--color-white);
        }
        .hot-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .hot-list-card {
            display: flex;
            gap: 16px;
            padding: 20px;
            background: #fafafa;
            border-radius: var(--radius-md);
            border: 1px solid #f0f0f0;
            transition: all var(--transition-normal);
            align-items: flex-start;
        }
        .hot-list-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: transparent;
            transform: translateY(-2px);
        }
        .hot-list-card .hl-rank {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-accent);
            font-family: var(--font-heading);
            line-height: 1;
            flex-shrink: 0;
            min-width: 40px;
        }
        .hot-list-card .hl-info {
            flex: 1;
        }
        .hot-list-card .hl-title {
            font-weight: 600;
            font-size: 15px;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .hot-list-card .hl-desc {
            font-size: 12px;
            color: var(--color-text-light);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .hot-list-card .hl-badge {
            display: inline-block;
            font-size: 10px;
            background: rgba(243, 156, 18, 0.15);
            color: var(--color-gold);
            padding: 3px 8px;
            border-radius: 10px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .hot-list-card .hl-img {
            width: 70px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        /* ========== FOCUS TOPICS ========== */
        .focus-topics-section {
            background: var(--color-bg);
        }
        .focus-topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .focus-topic-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        .focus-topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .focus-topic-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .focus-topic-card .ft-content {
            padding: 20px;
        }
        .focus-topic-card .ft-title {
            font-weight: 600;
            font-size: 16px;
            color: var(--color-primary);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .focus-topic-card .ft-desc {
            font-size: 13px;
            color: var(--color-text-light);
            line-height: 1.6;
        }
        .focus-topic-card .ft-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-top: 10px;
        }
        .focus-topic-card .ft-tag {
            font-size: 10px;
            padding: 3px 8px;
            background: #f5f5f5;
            border-radius: 10px;
            color: var(--color-text-light);
            letter-spacing: 0.3px;
        }

        /* ========== MEDIA SELECTED ========== */
        .media-selected-section {
            background: var(--color-white);
        }
        .media-scroll-wrap {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .media-scroll-wrap::-webkit-scrollbar {
            height: 4px;
        }
        .media-scroll-wrap::-webkit-scrollbar-thumb {
            background: #ddd;
            border-radius: 2px;
        }
        .media-scroll-card {
            min-width: 280px;
            flex-shrink: 0;
            background: #fafafa;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid #f0f0f0;
            scroll-snap-align: start;
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        .media-scroll-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .media-scroll-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .media-scroll-card .ms-content {
            padding: 16px;
        }
        .media-scroll-card .ms-tag {
            font-size: 10px;
            background: var(--color-accent);
            color: #fff;
            padding: 3px 8px;
            border-radius: 3px;
            display: inline-block;
            margin-bottom: 6px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }
        .media-scroll-card .ms-title {
            font-weight: 600;
            font-size: 14px;
            color: var(--color-primary);
            line-height: 1.4;
        }
        .media-scroll-card .ms-meta {
            font-size: 11px;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #f9f9f9;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: var(--color-white);
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-primary);
            letter-spacing: 0.3px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            font-size: 14px;
            transition: transform var(--transition-normal);
            color: var(--color-text-muted);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 24px;
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.8;
            border-left: 4px solid transparent;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
            border-left-color: var(--color-accent);
        }

        /* ========== CTA FORM ========== */
        .cta-form-section {
            background: var(--color-dark-bg);
            padding: var(--spacing-xl) 0;
            text-align: center;
        }
        .cta-form-inner {
            max-width: 600px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .cta-form-inner h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 28px;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 1px;
        }
        .cta-form-inner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            margin-bottom: 24px;
            line-height: 1.6;
        }
        .cta-form-row {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-input {
            height: 48px;
            padding: 0 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 15px;
            flex: 1;
            min-width: 250px;
            transition: all var(--transition-fast);
            outline: none;
        }
        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .cta-input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
            background: rgba(255, 255, 255, 0.12);
        }
        .cta-submit {
            height: 48px;
            padding: 0 28px;
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            white-space: nowrap;
        }
        .cta-submit:hover {
            background: #c0392b;
            box-shadow: 0 0 20px rgba(231, 76, 60, 0.5);
        }
        .cta-note {
            color: rgba(255, 255, 255, 0.4);
            font-size: 11px;
            margin-top: 12px;
            letter-spacing: 0.3px;
        }

        /* ========== DOWNLOAD GUIDE ========== */
        .download-guide-section {
            background: var(--color-white);
            padding: var(--spacing-lg) 0;
        }
        .download-guide-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .download-guide-text h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 24px;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .download-guide-text p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .download-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 20px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 14px;
            transition: all var(--transition-normal);
            cursor: pointer;
            border: none;
        }
        .download-btn:hover {
            background: #333;
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        .download-btn i {
            font-size: 18px;
        }
        .download-guide-img {
            display: flex;
            justify-content: center;
            gap: 16px;
        }
        .download-guide-img .dg-mock {
            width: 140px;
            height: 200px;
            background: #eee;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #bbb;
            font-size: 12px;
            overflow: hidden;
        }
        .download-guide-img .dg-mock img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-dark-bg);
            color: #ccc;
            padding: var(--spacing-lg) 0;
            font-size: 13px;
        }
        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 32px;
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 14px;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .footer-col p,
        .footer-col a {
            font-size: 12px;
            color: #aaa;
            line-height: 1.8;
            display: block;
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 20px auto 0;
            padding: 16px var(--spacing-md) 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 11px;
            color: #777;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            align-items: center;
        }
        .footer-bottom a {
            color: #aaa;
            font-size: 11px;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        .footer-bottom .sep {
            color: #555;
            margin: 0 8px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .hero-left {
                order: 2;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 10px;
            }
            .hero-center {
                order: 1;
                grid-column: 1 / -1;
            }
            .hero-right {
                order: 3;
                grid-column: 1 / -1;
                flex-direction: row;
                justify-content: center;
                gap: 16px;
            }
            .hero-title {
                font-size: 40px;
            }
            .category-grid {
                grid-template-columns: repeat(4, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-matrix {
                grid-template-columns: 1fr;
            }
            .service-block.full-width {
                grid-template-columns: 1fr;
            }
            .brand-intro-inner {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-list-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .focus-topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .social-proof-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .download-guide-inner {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 90px;
            }
            .top-bar-custom {
                height: 34px;
                line-height: 34px;
                font-size: 10px;
            }
            .top-bar-custom .top-left span {
                display: none;
            }
            .main-nav {
                top: 34px;
                height: 50px;
            }
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .mobile-nav-overlay {
                display: block;
            }
            .mobile-nav-panel {
                display: block;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .hero-left {
                flex-direction: column;
                gap: 8px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .hero-dashboard {
                max-width: 100%;
            }
            .section-title {
                font-size: 24px;
            }
            .category-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }
            .category-card {
                padding: 16px 10px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-card .metric-number {
                font-size: 36px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .resource-grid {
                grid-template-columns: 1fr;
            }
            .hot-list-grid {
                grid-template-columns: 1fr;
            }
            .focus-topics-grid {
                grid-template-columns: 1fr;
            }
            .social-proof-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .comparison-table-wrap {
                grid-template-columns: 1fr;
            }
            .comp-label-col {
                min-width: 80px;
                font-size: 11px;
                padding: 12px;
            }
            .comp-cell {
                font-size: 12px;
                padding: 10px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-form-row {
                flex-direction: column;
            }
            .cta-input {
                min-width: auto;
            }
            .cta-submit {
                width: 100%;
            }
            .download-guide-inner {
                grid-template-columns: 1fr;
            }
            .media-scroll-card {
                min-width: 220px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 26px;
                letter-spacing: 1px;
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .metric-card {
                padding: 16px 10px;
            }
            .metric-card .metric-number {
                font-size: 28px;
            }
            .section-title {
                font-size: 20px;
            }
            .hero-dashboard {
                padding: 12px;
            }
            .hero-dashboard .dash-block {
                padding: 8px 10px;
            }
            .hero-dashboard .dash-num {
                font-size: 16px;
            }
            .social-proof-grid {
                grid-template-columns: 1fr 1fr;
            }
            .download-btns {
                flex-direction: column;
            }
            .download-btn {
                justify-content: center;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #e74c3c;
            --color-gold: #f39c12;
            --color-bg: #f5f5f5;
            --color-white: #ffffff;
            --color-text: #1a1a1a;
            --color-text-light: #666666;
            --color-text-muted: #999999;
            --color-border: #e0e0e0;
            --color-dark-bg: #1a1a1a;
            --color-topbar-bg: #111111;
            --color-topbar-text: #aaaaaa;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-xxl: 80px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            padding-top: 100px;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #c0392b;
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ========== TOP BAR ========== */
        .top-bar-custom {
            background: var(--color-topbar-bg);
            height: 40px;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
            font-size: 12px;
            color: var(--color-topbar-text);
        }
        .top-bar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .top-bar-left .domain-text {
            color: #ddd;
            font-weight: 500;
        }
        .top-bar-left .tagline {
            color: var(--color-topbar-text);
            font-size: 11px;
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .top-bar-right a {
            color: var(--color-topbar-text);
            font-size: 12px;
            transition: color var(--transition-fast);
            cursor: pointer;
        }
        .top-bar-right a:hover {
            color: var(--color-accent);
        }
        .top-bar-right .login-btn {
            background: var(--color-accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }
        .top-bar-right .login-btn:hover {
            background: #c0392b;
            color: #fff;
        }

        /* ========== MAIN NAV ========== */
        .main-nav {
            background: var(--color-white);
            height: 60px;
            position: fixed;
            top: 40px;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-normal);
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
        }
        .main-nav.scrolled {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }
        .nav-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: var(--color-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li {
            margin: 0;
            position: relative;
        }
        .nav-links a {
            display: block;
            padding: 8px 14px;
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.5px;
        }
        .nav-links a:hover {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.04);
        }
        .nav-links a.active {
            color: var(--color-accent);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .nav-links .dropdown {
            position: relative;
        }
        .nav-links .dropdown-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            min-width: 180px;
            padding: 8px 0;
            z-index: 999;
            list-style: none;
        }
        .nav-links .dropdown:hover .dropdown-menu {
            display: block;
        }
        .nav-links .dropdown-menu li a {
            padding: 10px 20px;
            font-size: 13px;
            border-radius: 0;
            display: block;
        }
        .nav-links .dropdown-menu li a:hover {
            background: rgba(231, 76, 60, 0.05);
            color: var(--color-accent);
        }
        .nav-links .dropdown-menu li a.active {
            color: var(--color-accent);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--color-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ========== HERO ========== */
        .page-hero {
            position: relative;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            padding: var(--spacing-xxl) 0 var(--spacing-xl);
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.88) 0%, rgba(26, 26, 26, 0.72) 40%, rgba(26, 26, 26, 0.82) 100%);
            z-index: 1;
        }
        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            width: 100%;
        }
        .hero-left {
            animation: fadeInUp 0.7s ease forwards;
        }
        .hero-left .hero-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: var(--spacing-md);
        }
        .hero-left h1 {
            font-family: var(--font-heading);
            font-size: 48px;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 1px;
        }
        .hero-left h1 span {
            color: var(--color-accent);
        }
        .hero-left .hero-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
            max-width: 480px;
        }
        .hero-left .hero-cta-group {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #fff;
            padding: 13px 30px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-normal);
            text-decoration: none;
            letter-spacing: 0.5px;
        }
        .btn-primary:hover {
            background: #c0392b;
            color: #fff;
            box-shadow: 0 0 20px rgba(231, 76, 60, 0.4);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: 2px solid rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: all var(--transition-normal);
            text-decoration: none;
            letter-spacing: 0.5px;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .hero-right {
            animation: fadeInUp 0.9s ease forwards;
        }
        .hero-data-panel {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
        }
        .hero-data-panel .panel-title {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-data-panel .panel-title i {
            color: var(--color-gold);
        }
        .hero-rank-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hero-rank-list li {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            color: #ddd;
            font-size: 14px;
        }
        .hero-rank-list li:last-child {
            border-bottom: none;
        }
        .hero-rank-list .rank-num {
            width: 28px;
            height: 28px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 12px;
            flex-shrink: 0;
        }
        .hero-rank-list .rank-num.silver {
            background: #888;
        }
        .hero-rank-list .rank-num.bronze {
            background: #b8733b;
        }
        .hero-rank-list .rank-name {
            flex: 1;
            margin-left: 12px;
            font-weight: 500;
        }
        .hero-rank-list .rank-stat {
            font-weight: 700;
            color: var(--color-gold);
            font-size: 15px;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-alt {
            background: var(--color-white);
        }
        .section-dark {
            background: var(--color-dark-bg);
            color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }
        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 34px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.5px;
        }
        .section-dark .section-header h2 {
            color: #fff;
        }
        .section-header .section-subtitle {
            color: var(--color-text-light);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-dark .section-header .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .accent-bar {
            width: 50px;
            height: 4px;
            background: var(--color-accent);
            border-radius: 2px;
            margin: 0 auto var(--spacing-sm);
        }

        /* ========== SERVICE GRID ========== */
        .service-grid-asym {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
        }
        .service-grid-asym.reverse {
            grid-template-columns: 0.8fr 1.2fr;
        }
        .service-card-large {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
        }
        .service-card-large:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .service-card-large .service-icon-wrap {
            width: 56px;
            height: 56px;
            background: rgba(231, 76, 60, 0.08);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 24px;
            color: var(--color-accent);
        }
        .service-card-large .service-info h3 {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-primary);
        }
        .service-card-large .service-info p {
            color: var(--color-text-light);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .service-card-large .service-info .service-link {
            color: var(--color-accent);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .service-card-small {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            text-align: center;
        }
        .service-card-small:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .service-card-small .service-icon-wrap {
            width: 48px;
            height: 48px;
            background: rgba(243, 156, 18, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-sm);
            font-size: 20px;
            color: var(--color-gold);
        }
        .service-card-small h3 {
            font-family: var(--font-heading);
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-primary);
        }
        .service-card-small p {
            color: var(--color-text-light);
            font-size: 13px;
            line-height: 1.6;
        }

        /* ========== FEATURE BLOCKS ========== */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
            margin-bottom: var(--spacing-xl);
        }
        .feature-row.reverse {
            direction: rtl;
        }
        .feature-row.reverse .feature-text {
            direction: ltr;
        }
        .feature-row.reverse .feature-image {
            direction: ltr;
        }
        .feature-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .feature-text h3 {
            font-family: var(--font-heading);
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-sm);
        }
        .feature-text p {
            color: var(--color-text-light);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: var(--spacing-sm);
        }
        .feature-text .feature-list {
            list-style: none;
            padding: 0;
        }
        .feature-text .feature-list li {
            padding: 6px 0;
            font-size: 14px;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .feature-text .feature-list li i {
            color: var(--color-accent);
            font-size: 12px;
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            background: var(--color-white);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        .comparison-table thead th {
            background: var(--color-dark-bg);
            color: #fff;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 15px;
            text-align: center;
            letter-spacing: 0.5px;
        }
        .comparison-table thead th.highlight-col {
            background: var(--color-accent);
        }
        .comparison-table tbody td {
            padding: 14px 20px;
            text-align: center;
            border-bottom: 1px solid var(--color-border);
            font-size: 14px;
            color: var(--color-text-light);
        }
        .comparison-table tbody td:first-child {
            font-weight: 600;
            color: var(--color-primary);
            text-align: left;
        }
        .comparison-table tbody tr:hover td {
            background: rgba(231, 76, 60, 0.02);
        }
        .comparison-table .check-icon {
            color: #27ae60;
            font-weight: 700;
        }
        .comparison-table .cross-icon {
            color: #ccc;
        }
        .comparison-table .star-icon {
            color: var(--color-gold);
        }

        /* ========== STAT CARDS ========== */
        .stat-cards-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .stat-card .stat-number {
            font-family: var(--font-heading);
            font-size: 44px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-card .stat-label {
            font-size: 13px;
            color: var(--color-text-light);
            font-weight: 500;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--color-primary);
            background: var(--color-white);
            border: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition-fast);
            font-family: var(--font-heading);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            transition: transform var(--transition-normal);
            font-size: 14px;
            color: var(--color-accent);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            background: #fafafa;
            border-left: 4px solid var(--color-accent);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 24px;
        }
        .faq-answer p {
            color: var(--color-text-light);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-dark-bg);
            padding: var(--spacing-xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(231, 76, 60, 0.08) 0%, transparent 70%);
            z-index: 1;
        }
        .cta-section .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 600px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            margin-bottom: var(--spacing-lg);
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 500px;
            margin: 0 auto;
        }
        .cta-form input {
            flex: 1;
            height: 48px;
            border-radius: var(--radius-sm);
            border: 1px solid #444;
            padding: 0 16px;
            font-size: 15px;
            background: #2a2a2a;
            color: #fff;
            transition: all var(--transition-fast);
        }
        .cta-form input:focus {
            border-color: var(--color-accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
        }
        .cta-form input::placeholder {
            color: #888;
        }
        .cta-form .btn-submit {
            height: 48px;
            padding: 0 28px;
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition-normal);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .cta-form .btn-submit:hover {
            background: #c0392b;
            box-shadow: 0 0 24px rgba(231, 76, 60, 0.5);
        }
        .cta-note {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            margin-top: var(--spacing-sm);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-dark-bg);
            color: #ccc;
            padding: var(--spacing-xl) 0 var(--spacing-md);
            font-size: 14px;
        }
        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.5px;
        }
        .footer-col p {
            font-size: 13px;
            line-height: 1.8;
            color: #aaa;
            margin: 0;
        }
        .footer-col a {
            display: block;
            color: #aaa;
            font-size: 13px;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: var(--spacing-md) var(--spacing-md) 0;
            border-top: 1px solid #333;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 12px;
            color: #888;
        }
        .footer-bottom a {
            color: #aaa;
            font-size: 12px;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        .footer-bottom .sep {
            margin: 0 8px;
            color: #555;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .page-hero .hero-content {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .hero-left h1 {
                font-size: 36px;
            }
            .hero-right {
                max-width: 500px;
            }
            .service-grid-asym,
            .service-grid-asym.reverse {
                grid-template-columns: 1fr;
            }
            .stat-cards-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-row,
            .feature-row.reverse {
                grid-template-columns: 1fr;
                direction: ltr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 90px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: var(--spacing-sm);
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links .dropdown-menu {
                position: static;
                box-shadow: none;
                border: none;
                padding-left: 16px;
                display: none;
            }
            .nav-links .dropdown.open .dropdown-menu {
                display: block;
            }
            .nav-toggle {
                display: block;
            }
            .hero-left h1 {
                font-size: 28px;
            }
            .hero-left .hero-subtitle {
                font-size: 14px;
            }
            .stat-cards-row {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .stat-card .stat-number {
                font-size: 32px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form .btn-submit {
                width: 100%;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .comparison-table-wrap {
                font-size: 12px;
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 12px;
                font-size: 12px;
            }
            .page-hero {
                min-height: 400px;
                padding: var(--spacing-lg) 0;
            }
            .service-card-large {
                flex-direction: column;
                text-align: center;
            }
            .service-card-large .service-icon-wrap {
                margin: 0 auto;
            }
        }
        @media (max-width: 520px) {
            .hero-left h1 {
                font-size: 24px;
            }
            .stat-cards-row {
                grid-template-columns: 1fr;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-outline-light {
                width: 100%;
                text-align: center;
                justify-content: center;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .page-hero {
                min-height: 350px;
            }
            .hero-data-panel {
                padding: var(--spacing-md);
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #e74c3c;
            --color-gold: #f39c12;
            --color-bg: #f5f5f5;
            --color-white: #ffffff;
            --color-text: #1a1a1a;
            --color-text-light: #666666;
            --color-text-muted: #999999;
            --color-border: #e0e0e0;
            --color-dark-bg: #1a1a1a;
            --color-topbar-bg: #111111;
            --color-topbar-text: #aaaaaa;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-xxl: 80px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            padding-top: 100px;
            margin: 0;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #c0392b;
            text-decoration: none;
        }

        a:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ========== TOP BAR ========== */
        .top-bar-custom {
            background: var(--color-topbar-bg);
            height: 40px;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
            font-size: 12px;
            color: var(--color-topbar-text);
        }

        .top-bar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--color-topbar-text);
            font-size: 12px;
        }

        .top-bar-left .domain-text {
            color: #cccccc;
            font-weight: 500;
        }

        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .top-bar-right a {
            color: var(--color-topbar-text);
            font-size: 12px;
            transition: color var(--transition-fast);
        }

        .top-bar-right a:hover {
            color: var(--color-accent);
        }

        /* ========== MAIN NAV ========== */
        .main-nav {
            background: var(--color-white);
            height: 60px;
            position: fixed;
            top: 40px;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-normal);
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
        }

        .main-nav.scrolled {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }

        .nav-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: var(--color-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
            position: relative;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.5px;
            cursor: pointer;
        }

        .nav-links a:hover {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.04);
        }

        .nav-links a.active {
            color: var(--color-accent);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        /* dropdown */
        .has-dropdown {
            position: relative;
        }

        .has-dropdown .dropdown-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            min-width: 160px;
            padding: 8px 0;
            z-index: 100;
            list-style: none;
            margin: 4px 0 0 0;
        }

        .has-dropdown:hover .dropdown-menu {
            display: block;
        }

        .dropdown-menu li a {
            padding: 10px 18px;
            font-size: 13px;
            border-radius: 0;
            display: block;
            color: var(--color-text);
        }

        .dropdown-menu li a:hover {
            background: rgba(231, 76, 60, 0.05);
            color: var(--color-accent);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--color-primary);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        /* ========== HERO BANNER ========== */
        .hero-banner {
            position: relative;
            min-height: 55vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: var(--spacing-xxl) var(--spacing-md);
            margin-top: 0;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1;
        }

        .hero-banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            color: #ffffff;
            animation: fadeInUp 0.8s ease forwards;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-banner-content .hero-label {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: var(--spacing-md);
            text-transform: uppercase;
        }

        .hero-banner-content h1 {
            font-family: var(--font-heading);
            font-size: 52px;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 var(--spacing-sm) 0;
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .hero-banner-content .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: var(--spacing-lg);
            line-height: 1.6;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-hero {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 16px;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            border: 2px solid var(--color-accent);
            cursor: pointer;
            text-decoration: none;
        }

        .btn-hero:hover {
            background: #c0392b;
            border-color: #c0392b;
            color: #fff;
            box-shadow: 0 0 20px rgba(231, 76, 60, 0.4);
            transform: translateY(-2px);
        }

        .btn-hero .arrow-icon {
            display: inline-block;
            margin-left: 8px;
            animation: pulseArrow 1.5s ease-in-out infinite;
        }

        @keyframes pulseArrow {
            0%,
            100% {
                transform: translateX(0);
            }
            50% {
                transform: translateX(4px);
            }
        }

        /* ========== SECTION ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }

        .section-dark {
            background: var(--color-dark-bg);
            color: #ffffff;
        }

        .section-light {
            background: var(--color-white);
        }

        .section-gray {
            background: #f0f0f0;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            text-align: center;
            margin-bottom: var(--spacing-xs);
            letter-spacing: 0.5px;
        }

        .section-dark .section-title {
            color: #ffffff;
        }

        .section-subtitle {
            text-align: center;
            color: var(--color-text-light);
            font-size: 16px;
            margin-bottom: var(--spacing-xl);
            max-width: 650px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== METRICS ROW ========== */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
        }

        .metric-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .metric-card .metric-number {
            font-family: var(--font-heading);
            font-size: 48px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: var(--spacing-xs);
        }

        .metric-card .metric-label {
            font-size: 14px;
            color: var(--color-text-light);
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        /* ========== SERVICE GRID ========== */
        .service-grid-asymmetric {
            display: grid;
            grid-template-columns: 1fr 1fr;
            grid-template-rows: auto auto;
            gap: var(--spacing-md);
        }

        .service-block {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--color-border);
        }

        .service-block:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .service-block.wide {
            grid-column: 1 / -1;
            flex-direction: row;
        }

        .service-block .service-img {
            flex-shrink: 0;
            overflow: hidden;
        }

        .service-block .service-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .service-block:hover .service-img img {
            transform: scale(1.03);
        }

        .service-block:not(.wide) .service-img {
            height: 200px;
        }

        .service-block.wide .service-img {
            width: 45%;
            min-height: 280px;
        }

        .service-block .service-body {
            padding: var(--spacing-lg);
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .service-block .service-body h3 {
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.5px;
        }

        .service-block .service-body p {
            color: var(--color-text-light);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: var(--spacing-sm);
            flex: 1;
        }

        .service-block .service-body .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 14px;
            transition: gap var(--transition-fast);
        }

        .service-block .service-body .service-link:hover {
            gap: 10px;
            color: #c0392b;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
        }

        .brand-intro-block .brand-intro-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .brand-intro-block .brand-intro-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .brand-intro-block .brand-intro-text h3 {
            font-family: var(--font-heading);
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-sm);
        }

        .brand-intro-block .brand-intro-text p {
            color: var(--color-text-light);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-table-wrap {
            overflow-x: auto;
            margin: 0 auto;
            max-width: 900px;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .comparison-table thead th {
            background: var(--color-primary);
            color: #fff;
            padding: 16px 20px;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 15px;
            text-align: center;
            letter-spacing: 0.5px;
        }

        .comparison-table thead th.highlight-col {
            background: var(--color-accent);
        }

        .comparison-table tbody td {
            padding: 14px 20px;
            text-align: center;
            border-bottom: 1px solid var(--color-border);
            font-size: 14px;
            color: var(--color-text);
        }

        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tbody td.highlight-col {
            color: var(--color-accent);
            font-weight: 600;
        }

        .comparison-table .check-icon {
            color: #27ae60;
            font-size: 18px;
        }

        .comparison-table .cross-icon {
            color: #999;
            font-size: 18px;
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg) var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
        }

        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .process-step .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 20px;
            margin-bottom: var(--spacing-sm);
        }

        .process-step h4 {
            font-family: var(--font-heading);
            font-size: 17px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 13px;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        /* ========== CASE CARDS ========== */
        .case-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .case-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
        }

        .case-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .case-card .case-img {
            height: 180px;
            overflow: hidden;
        }

        .case-card .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .case-card:hover .case-img img {
            transform: scale(1.04);
        }

        .case-card .case-body {
            padding: var(--spacing-md);
        }

        .case-card .case-body .case-date {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 12px;
            font-weight: 500;
            margin-bottom: var(--spacing-xs);
        }

        .case-card .case-body h4 {
            font-family: var(--font-heading);
            font-size: 17px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .case-card .case-body p {
            font-size: 13px;
            color: var(--color-text-light);
            line-height: 1.6;
            margin-bottom: var(--spacing-sm);
        }

        .case-card .case-body .case-link {
            font-weight: 600;
            font-size: 13px;
            color: var(--color-accent);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 18px 24px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
            transition: background var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .faq-question:hover {
            background: #fafafa;
        }

        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--color-accent);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            border-left: 4px solid var(--color-accent);
            margin-left: 0;
            background: #fafafa;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 24px;
        }

        .faq-answer p {
            color: var(--color-text-light);
            font-size: 15px;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-dark-bg);
            padding: var(--spacing-xl) var(--spacing-md);
            text-align: center;
        }

        .cta-inner {
            max-width: 600px;
            margin: 0 auto;
        }

        .cta-section h3 {
            font-family: var(--font-heading);
            font-size: 28px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            margin-bottom: var(--spacing-lg);
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input[type="email"] {
            flex: 1;
            min-width: 240px;
            height: 48px;
            padding: 0 16px;
            border-radius: var(--radius-sm);
            border: 1px solid #555;
            background: #2a2a2a;
            color: #fff;
            font-size: 15px;
            transition: all var(--transition-fast);
            outline: none;
        }

        .cta-form input[type="email"]:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
        }

        .cta-form input[type="email"]::placeholder {
            color: #888;
        }

        .btn-cta {
            height: 48px;
            padding: 0 28px;
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            white-space: nowrap;
        }

        .btn-cta:hover {
            background: #c0392b;
            box-shadow: 0 0 18px rgba(231, 76, 60, 0.5);
            transform: translateY(-1px);
        }

        .cta-note {
            color: rgba(255, 255, 255, 0.5);
            font-size: 12px;
            margin-top: var(--spacing-sm);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-dark-bg);
            color: #cccccc;
            padding: var(--spacing-xl) var(--spacing-md) var(--spacing-md);
        }

        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid #333;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.5px;
        }

        .footer-col p {
            font-size: 13px;
            color: #aaaaaa;
            line-height: 1.7;
            margin: 0;
        }

        .footer-col a {
            display: block;
            color: #cccccc;
            font-size: 13px;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }

        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-top: var(--spacing-md);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #888;
            gap: 8px;
        }

        .footer-bottom span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-bottom .sep {
            color: #555;
        }

        .footer-bottom a {
            color: #ccc;
            font-size: 12px;
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-banner-content h1 {
                font-size: 38px;
            }
            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid-asymmetric {
                grid-template-columns: 1fr;
            }
            .service-block.wide {
                flex-direction: column;
            }
            .service-block.wide .service-img {
                width: 100%;
                min-height: 200px;
                height: 200px;
            }
            .brand-intro-block {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 100px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: var(--spacing-sm);
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 0;
            }
            .nav-links a.active::after {
                bottom: 0;
                left: 0;
                right: 0;
                height: 3px;
            }
            .nav-toggle {
                display: block;
            }
            .has-dropdown .dropdown-menu {
                position: static;
                box-shadow: none;
                border: none;
                padding-left: 16px;
                display: none;
            }
            .has-dropdown.open .dropdown-menu {
                display: block;
            }
            .hero-banner {
                min-height: 40vh;
                padding: var(--spacing-xl) var(--spacing-md);
            }
            .hero-banner-content h1 {
                font-size: 30px;
            }
            .hero-banner-content .hero-subtitle {
                font-size: 15px;
            }
            .metrics-row {
                grid-template-columns: 1fr 1fr;
            }
            .metric-card .metric-number {
                font-size: 36px;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .case-cards-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 24px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input[type="email"] {
                min-width: auto;
                width: 100%;
            }
            .btn-cta {
                width: 100%;
            }
            .footer-inner {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .brand-intro-block {
                padding: var(--spacing-md);
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 12px;
                font-size: 12px;
            }
            .top-bar-left .tagline-text {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .hero-banner-content h1 {
                font-size: 26px;
            }
            .metrics-row {
                grid-template-columns: 1fr;
            }
            .service-block:not(.wide) .service-img {
                height: 160px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .btn-hero {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #e74c3c;
            --color-gold: #f39c12;
            --color-bg: #f5f5f5;
            --color-white: #ffffff;
            --color-text: #1a1a1a;
            --color-text-light: #666666;
            --color-text-muted: #999999;
            --color-border: #e0e0e0;
            --color-dark-bg: #1a1a1a;
            --color-topbar-bg: #111111;
            --color-topbar-text: #aaaaaa;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-xxl: 80px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            padding-top: 100px;
            min-height: 100vh;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #c0392b;
            text-decoration: none;
        }

        a:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ========== TOP BAR ========== */
        .top-bar-custom {
            background: var(--color-topbar-bg);
            height: 40px;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
            font-size: 12px;
            color: var(--color-topbar-text);
        }

        .top-bar-custom .top-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .top-bar-custom .top-left {
            display: flex;
            align-items: center;
            gap: 12px;
            white-space: nowrap;
        }

        .top-bar-custom .top-left span {
            color: var(--color-topbar-text);
        }

        .top-bar-custom .top-left .domain-tag {
            color: #ccc;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .top-bar-custom .top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .top-bar-custom .top-right a {
            color: var(--color-topbar-text);
            font-size: 12px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .top-bar-custom .top-right a:hover {
            color: var(--color-accent);
        }

        .top-bar-custom .top-right .login-btn {
            background: var(--color-accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            transition: background var(--transition-fast);
        }

        .top-bar-custom .top-right .login-btn:hover {
            background: #c0392b;
            color: #fff;
        }

        /* ========== MAIN NAV ========== */
        .main-nav {
            background: var(--color-white);
            height: 60px;
            position: fixed;
            top: 40px;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-normal);
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
        }

        .main-nav.scrolled {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }

        .nav-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: var(--color-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
            height: 100%;
        }

        .nav-links li {
            margin: 0;
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }

        .nav-links>li>a {
            display: flex;
            align-items: center;
            padding: 8px 14px;
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.5px;
            height: 100%;
        }

        .nav-links>li>a:hover {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.04);
        }

        .nav-links>li>a.active {
            color: var(--color-accent);
            font-weight: 600;
        }

        .nav-links>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 8px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        /* Dropdown */
        .nav-links .has-dropdown {
            position: relative;
        }

        .nav-links .has-dropdown .dropdown-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            min-width: 180px;
            z-index: 999;
            padding: 8px 0;
            list-style: none;
            margin: 0;
        }

        .nav-links .has-dropdown:hover .dropdown-menu {
            display: block;
        }

        .nav-links .has-dropdown .dropdown-menu li a {
            display: block;
            padding: 10px 18px;
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 400;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links .has-dropdown .dropdown-menu li a:hover {
            background: rgba(231, 76, 60, 0.05);
            color: var(--color-accent);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--color-primary);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-position: center 30%;
            overflow: hidden;
            padding: var(--spacing-xxl) 0;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0, 0, 0, 0.75) 0%, rgba(26, 26, 26, 0.6) 40%, rgba(0, 0, 0, 0.7) 100%);
            z-index: 1;
        }

        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
            width: 100%;
        }

        .hero-section .hero-text {
            color: #fff;
        }

        .hero-section .hero-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: var(--spacing-md);
            animation: fadeInUp 0.6s ease forwards;
        }

        .hero-section .hero-title {
            font-family: var(--font-heading);
            font-size: 52px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: var(--spacing-md);
            color: #fff;
            letter-spacing: 1px;
            animation: fadeInUp 0.7s ease forwards;
            animation-delay: 0.1s;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-section .hero-subtitle {
            font-size: 17px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: var(--spacing-lg);
            max-width: 520px;
            animation: fadeInUp 0.7s ease forwards;
            animation-delay: 0.2s;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-section .hero-cta-group {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            animation: fadeInUp 0.7s ease forwards;
            animation-delay: 0.3s;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-section .btn-primary {
            background: var(--color-accent);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-normal);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.5px;
            text-decoration: none;
        }

        .hero-section .btn-primary:hover {
            background: #c0392b;
            color: #fff;
            box-shadow: 0 0 20px rgba(231, 76, 60, 0.5);
            transform: translateY(-1px);
        }

        .hero-section .btn-primary .arrow-icon {
            transition: transform var(--transition-fast);
        }

        .hero-section .btn-primary:hover .arrow-icon {
            transform: translateX(4px);
        }

        .hero-section .btn-outline {
            background: transparent;
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: 2px solid rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: all var(--transition-normal);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.5px;
            text-decoration: none;
        }

        .hero-section .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .hero-section .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            animation: fadeInUp 0.8s ease forwards;
            animation-delay: 0.3s;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-section .hero-visual-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            backdrop-filter: blur(10px);
            width: 100%;
            max-width: 380px;
            aspect-ratio: 3/4;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: var(--spacing-sm);
        }

        .hero-visual-card .stat-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-visual-card .stat-row:last-child {
            border-bottom: none;
        }

        .hero-visual-card .stat-label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
        }

        .hero-visual-card .stat-value {
            color: var(--color-gold);
            font-weight: 700;
            font-size: 20px;
            font-family: var(--font-heading);
        }

        .hero-visual-card .stat-value.live {
            color: #2ecc71;
            animation: pulse-dot 1.5s infinite;
        }

        .hero-visual-card .live-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #2ecc71;
            border-radius: 50%;
            margin-right: 6px;
            animation: pulse-dot 1.5s infinite;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.6);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(46, 204, 113, 0);
            }
        }

        /* ========== SECTION COMMON ========== */
        .section-block {
            padding: var(--spacing-xl) 0;
        }

        .section-block.section-alt {
            background: var(--color-white);
        }

        .section-block.section-dark {
            background: var(--color-dark-bg);
            color: #fff;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 32px;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: inherit;
            letter-spacing: 0.5px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--color-text-light);
            margin-bottom: var(--spacing-lg);
            max-width: 600px;
            line-height: 1.7;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== METRICS PANEL ========== */
        .metrics-panel {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            padding: var(--spacing-xl) 0;
        }

        .metric-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .metric-card .metric-number {
            font-family: var(--font-heading);
            font-size: 48px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: var(--spacing-xs);
        }

        .metric-card .metric-unit {
            font-size: 18px;
            font-weight: 400;
            color: var(--color-text-light);
        }

        .metric-card .metric-label {
            font-size: 14px;
            color: var(--color-text-light);
            margin-top: var(--spacing-xs);
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix {
            display: grid;
            grid-template-columns: 1fr 1fr;
            grid-template-rows: auto auto;
            gap: var(--spacing-md);
            padding: var(--spacing-lg) 0;
        }

        .service-matrix .service-block {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .service-matrix .service-block:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .service-matrix .service-block.wide {
            grid-column: 1 / -1;
            flex-direction: row;
            align-items: stretch;
        }

        .service-matrix .service-block.wide .service-img {
            width: 45%;
            flex-shrink: 0;
            min-height: 280px;
        }

        .service-matrix .service-block.wide .service-info {
            flex: 1;
            padding: var(--spacing-lg);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .service-matrix .service-block:not(.wide) .service-img {
            width: 100%;
            height: 200px;
            flex-shrink: 0;
        }

        .service-matrix .service-block:not(.wide) .service-info {
            padding: var(--spacing-md);
            flex: 1;
        }

        .service-matrix .service-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .service-matrix .service-info h3 {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
            color: var(--color-primary);
        }

        .service-matrix .service-info p {
            font-size: 15px;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: var(--spacing-sm);
        }

        .service-matrix .service-info .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 14px;
            transition: gap var(--transition-fast);
        }

        .service-matrix .service-info .service-link:hover {
            gap: 10px;
            color: #c0392b;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-block {
            background: #fafafa;
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
            margin: var(--spacing-lg) 0;
            border: 1px solid var(--color-border);
        }

        .brand-intro-block .brand-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .brand-intro-block .brand-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brand-intro-block .brand-text h3 {
            font-family: var(--font-heading);
            font-size: 24px;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--color-primary);
        }

        .brand-intro-block .brand-text p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--color-text-light);
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-section {
            padding: var(--spacing-lg) 0;
        }

        .comparison-table-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
            max-width: 900px;
            margin: 0 auto;
        }

        .comparison-col {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
        }

        .comparison-col.highlight {
            border: 2px solid var(--color-accent);
            position: relative;
            box-shadow: var(--shadow-md);
        }

        .comparison-col.highlight::before {
            content: '虎扑数据';
            position: absolute;
            top: -14px;
            right: 20px;
            background: var(--color-accent);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
        }

        .comparison-col h4 {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: var(--spacing-md);
            text-align: center;
        }

        .comparison-col .comp-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border);
            font-size: 14px;
        }

        .comparison-col .comp-row:last-child {
            border-bottom: none;
        }

        .comparison-col .comp-row .comp-label {
            color: var(--color-text-light);
        }

        .comparison-col .comp-row .comp-value {
            font-weight: 600;
            color: var(--color-primary);
        }

        .comparison-col.highlight .comp-row .comp-value {
            color: var(--color-accent);
        }

        .comparison-col .comp-row .comp-check {
            color: #2ecc71;
            font-size: 16px;
        }

        .comparison-col .comp-row .comp-cross {
            color: #ccc;
            font-size: 16px;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            padding: var(--spacing-lg) 0;
        }

        .deep-content-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
        }

        .deep-content-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .deep-content-card .dc-icon {
            width: 48px;
            height: 48px;
            background: rgba(231, 76, 60, 0.08);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--color-accent);
            margin-bottom: var(--spacing-sm);
        }

        .deep-content-card h4 {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
            color: var(--color-primary);
        }

        .deep-content-card p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.8;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--spacing-lg) 0;
        }

        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            text-align: left;
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            line-height: 1.4;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-accent);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-normal);
            font-size: 14px;
            color: var(--color-text-light);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            font-size: 15px;
            color: var(--color-text-light);
            line-height: 1.8;
            background: #fafafa;
            border-left: 4px solid var(--color-accent);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 16px 20px;
        }

        /* ========== CTA FORM ========== */
        .cta-form-section {
            background: var(--color-dark-bg);
            padding: var(--spacing-xl) 0;
            text-align: center;
        }

        .cta-form-section .cta-inner {
            max-width: 600px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        .cta-form-section h3 {
            font-family: var(--font-heading);
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }

        .cta-form-section p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: var(--spacing-lg);
            font-size: 15px;
        }

        .cta-form {
            display: flex;
            gap: var(--spacing-sm);
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input[type="email"] {
            flex: 1;
            min-width: 240px;
            height: 48px;
            padding: 0 16px;
            border-radius: var(--radius-sm);
            border: 1px solid #444;
            background: #2a2a2a;
            color: #fff;
            font-size: 15px;
            transition: all var(--transition-fast);
            outline: none;
        }

        .cta-form input[type="email"]:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
        }

        .cta-form .btn-submit {
            height: 48px;
            padding: 0 28px;
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition-normal);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .cta-form .btn-submit:hover {
            background: #c0392b;
            box-shadow: 0 0 24px rgba(231, 76, 60, 0.5);
        }

        .cta-form-section .cta-note {
            color: rgba(255, 255, 255, 0.45);
            font-size: 12px;
            margin-top: var(--spacing-sm);
        }

        /* ========== NEWS MINI ========== */
        .news-mini-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            padding: var(--spacing-md) 0;
        }

        .news-mini-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--color-border);
        }

        .news-mini-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .news-mini-card .news-mini-img {
            height: 160px;
            overflow: hidden;
        }

        .news-mini-card .news-mini-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .news-mini-card:hover .news-mini-img img {
            transform: scale(1.04);
        }

        .news-mini-card .news-mini-body {
            padding: var(--spacing-sm);
        }

        .news-mini-card .news-date-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            margin-bottom: var(--spacing-xs);
        }

        .news-mini-card h5 {
            font-family: var(--font-heading);
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-primary);
            line-height: 1.4;
        }

        .news-mini-card p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.5;
            margin-bottom: var(--spacing-xs);
        }

        .news-mini-card .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-mini-card .read-more:hover {
            color: #c0392b;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-dark-bg);
            color: #ccc;
            padding: var(--spacing-xl) 0 var(--spacing-md);
            font-size: 14px;
        }

        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.5px;
        }

        .footer-col p {
            font-size: 13px;
            color: #aaa;
            line-height: 1.7;
            margin: 0;
        }

        .footer-col a {
            display: block;
            color: #bbb;
            font-size: 13px;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: var(--spacing-md) var(--spacing-md) 0;
            border-top: 1px solid #333;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 12px;
            color: #888;
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: #555;
        }

        .footer-bottom a {
            color: #bbb;
            font-size: 12px;
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ========== RESPONSIVE ========== */
        @media screen and (max-width: 1024px) {
            .hero-section .hero-content {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .hero-section .hero-visual {
                justify-content: flex-start;
            }
            .hero-section .hero-visual-card {
                max-width: 100%;
                aspect-ratio: auto;
                min-height: 200px;
            }
            .hero-section .hero-title {
                font-size: 38px;
            }
            .metrics-panel {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-matrix {
                grid-template-columns: 1fr;
            }
            .service-matrix .service-block.wide {
                flex-direction: column;
            }
            .service-matrix .service-block.wide .service-img {
                width: 100%;
                min-height: 200px;
            }
            .news-mini-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-intro-block {
                grid-template-columns: 1fr;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .comparison-table-wrap {
                grid-template-columns: 1fr;
                max-width: 100%;
            }
        }

        @media screen and (max-width: 768px) {
            body {
                padding-top: 100px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: var(--spacing-sm);
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                gap: 0;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links>li>a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 0;
                font-size: 15px;
            }
            .nav-links>li>a.active::after {
                bottom: 4px;
                left: 16px;
                right: 16px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-links .has-dropdown .dropdown-menu {
                position: static;
                border: none;
                box-shadow: none;
                background: #fafafa;
                padding: 0;
                display: none;
            }
            .nav-links .has-dropdown.open .dropdown-menu {
                display: block;
            }
            .hero-section {
                min-height: 50vh;
                padding: var(--spacing-xl) 0;
            }
            .hero-section .hero-title {
                font-size: 28px;
            }
            .hero-section .hero-subtitle {
                font-size: 15px;
            }
            .metrics-panel {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .metric-card .metric-number {
                font-size: 36px;
            }
            .news-mini-grid {
                grid-template-columns: 1fr;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input[type="email"] {
                min-width: auto;
                width: 100%;
            }
            .cta-form .btn-submit {
                width: 100%;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .section-title {
                font-size: 24px;
            }
            .comparison-col {
                padding: var(--spacing-md);
            }
            .brand-intro-block {
                padding: var(--spacing-md);
            }
            .service-matrix .service-block:not(.wide) .service-img {
                height: 160px;
            }
        }

        @media screen and (max-width: 520px) {
            .hero-section .hero-title {
                font-size: 24px;
            }
            .metrics-panel {
                grid-template-columns: 1fr;
                gap: var(--spacing-xs);
            }
            .metric-card {
                padding: var(--spacing-md);
            }
            .metric-card .metric-number {
                font-size: 30px;
            }
            .hero-section .hero-cta-group {
                flex-direction: column;
            }
            .hero-section .btn-primary,
            .hero-section .btn-outline {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .section-block {
                padding: var(--spacing-lg) 0;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #e74c3c;
            --color-gold: #f39c12;
            --color-bg: #f5f5f5;
            --color-white: #ffffff;
            --color-text: #1a1a1a;
            --color-text-light: #666666;
            --color-text-muted: #999999;
            --color-border: #e0e0e0;
            --color-dark-bg: #1a1a1a;
            --color-topbar-bg: #111111;
            --color-topbar-text: #aaaaaa;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-xxl: 80px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            padding-top: 100px;
            margin: 0;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #c0392b;
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ========== TOP BAR ========== */
        .top-bar-custom {
            background: var(--color-topbar-bg);
            height: 40px;
            display: flex;
            align-items: center;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            padding: 0 var(--spacing-md);
            font-size: 12px;
            color: var(--color-topbar-text);
        }
        .top-bar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .top-bar-left span {
            color: var(--color-topbar-text);
        }
        .top-bar-left .domain-text {
            color: #ccc;
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .top-bar-right a {
            color: var(--color-topbar-text);
            font-size: 12px;
            transition: color var(--transition-fast);
            cursor: pointer;
        }
        .top-bar-right a:hover {
            color: var(--color-accent);
        }
        .top-bar-right .login-btn {
            background: var(--color-accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }
        .top-bar-right .login-btn:hover {
            background: #c0392b;
            color: #fff;
        }

        /* ========== MAIN NAV ========== */
        .main-nav {
            background: var(--color-white);
            height: 60px;
            position: fixed;
            top: 40px;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-normal);
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
        }
        .main-nav.scrolled {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }
        .nav-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: var(--color-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .nav-links li {
            margin: 0;
            position: relative;
        }
        .nav-links>li>a {
            display: block;
            padding: 8px 14px;
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.5px;
        }
        .nav-links>li>a:hover {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.04);
        }
        .nav-links>li>a.active {
            color: var(--color-accent);
            font-weight: 600;
        }
        .nav-links>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .nav-links .has-dropdown {
            position: relative;
        }
        .nav-links .has-dropdown>a .dropdown-arrow {
            font-size: 10px;
            margin-left: 4px;
            transition: transform var(--transition-fast);
        }
        .nav-links .has-dropdown:hover .dropdown-arrow {
            transform: rotate(180deg);
        }
        .nav-links .dropdown-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            min-width: 180px;
            padding: 8px 0;
            z-index: 100;
            list-style: none;
            margin: 4px 0 0 0;
        }
        .nav-links .has-dropdown:hover .dropdown-menu {
            display: block;
        }
        .nav-links .dropdown-menu li a {
            display: block;
            padding: 10px 20px;
            color: var(--color-text);
            font-size: 13px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links .dropdown-menu li a:hover {
            background: rgba(231, 76, 60, 0.04);
            color: var(--color-accent);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--color-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ========== HERO ========== */
        .hero-section {
            background: var(--color-white);
            padding: var(--spacing-xl) 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: rgba(231, 76, 60, 0.03);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -80px;
            width: 350px;
            height: 350px;
            background: rgba(243, 156, 18, 0.04);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: var(--spacing-xl);
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-content {
            padding-right: var(--spacing-md);
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(231, 76, 60, 0.08);
            color: var(--color-accent);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: var(--spacing-sm);
            animation: fadeInUp 0.6s ease forwards;
        }
        .hero-content h1 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 48px;
            line-height: 1.2;
            color: var(--color-primary);
            margin: 0 0 var(--spacing-sm) 0;
            letter-spacing: -0.5px;
            animation: fadeInUp 0.6s ease 0.1s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }
        .hero-content h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }
        .hero-content .hero-subtitle {
            font-size: 17px;
            color: var(--color-text-light);
            line-height: 1.7;
            margin: 0 0 var(--spacing-md) 0;
            animation: fadeInUp 0.6s ease 0.2s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }
        .hero-kpi-row {
            display: flex;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-md);
            animation: fadeInUp 0.6s ease 0.3s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }
        .hero-kpi-item {
            text-align: center;
            flex: 1;
            min-width: 80px;
        }
        .hero-kpi-item .kpi-number {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 36px;
            color: var(--color-accent);
            line-height: 1;
            display: block;
        }
        .hero-kpi-item .kpi-label {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: 4px;
            display: block;
        }
        .hero-cta-group {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            animation: fadeInUp 0.6s ease 0.4s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-normal);
            letter-spacing: 0.5px;
            white-space: nowrap;
            text-decoration: none;
        }
        .btn-primary:hover {
            background: #c0392b;
            color: #fff;
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary .btn-arrow {
            transition: transform var(--transition-fast);
        }
        .btn-primary:hover .btn-arrow {
            transform: translateX(4px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--color-accent);
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: 2px solid var(--color-accent);
            cursor: pointer;
            transition: all var(--transition-normal);
            letter-spacing: 0.5px;
            white-space: nowrap;
            text-decoration: none;
        }
        .btn-outline:hover {
            background: rgba(231, 76, 60, 0.05);
            color: #c0392b;
            border-color: #c0392b;
        }
        .hero-image-wrap {
            position: relative;
            z-index: 1;
            animation: fadeInRight 0.7s ease 0.3s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }
        .hero-image-wrap .hero-img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
        }
        .hero-image-wrap .hero-img-accent {
            position: absolute;
            bottom: -16px;
            left: -16px;
            width: 120px;
            height: 120px;
            background: var(--color-accent);
            border-radius: var(--radius-md);
            z-index: -1;
            opacity: 0.15;
        }
        .hero-image-wrap .hero-img-accent2 {
            position: absolute;
            top: -20px;
            right: -20px;
            width: 80px;
            height: 80px;
            background: var(--color-gold);
            border-radius: 50%;
            z-index: -1;
            opacity: 0.2;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @keyframes fadeInRight {
            from {
                opacity: 0;
                transform: translateX(40px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        /* ========== SECTION COMMON ========== */
        .section-pad {
            padding: var(--spacing-xxl) 0;
        }
        .section-pad-lg {
            padding: var(--spacing-xl) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }
        .section-header h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 34px;
            color: var(--color-primary);
            margin: 0 0 var(--spacing-xs) 0;
            letter-spacing: -0.3px;
        }
        .section-header .section-subtitle {
            font-size: 16px;
            color: var(--color-text-light);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: var(--spacing-xs);
        }

        /* ========== COMPARISON DIMENSIONS ========== */
        .dimensions-section {
            background: var(--color-white);
        }
        .dimensions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .dimension-card {
            background: var(--color-bg);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
            cursor: default;
        }
        .dimension-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: transparent;
            background: #fff;
        }
        .dimension-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            flex-shrink: 0;
        }
        .dimension-icon.gold {
            background: var(--color-gold);
        }
        .dimension-info h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 18px;
            color: var(--color-primary);
            margin: 0 0 6px 0;
        }
        .dimension-info p {
            font-size: 14px;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.7;
        }
        .dimension-full {
            grid-column: 1 / -1;
            background: var(--color-dark-bg);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            display: flex;
            gap: var(--spacing-lg);
            align-items: center;
            border: none;
        }
        .dimension-full:hover {
            background: #222;
            color: #fff;
        }
        .dimension-full .dimension-icon {
            width: 64px;
            height: 64px;
            font-size: 26px;
        }
        .dimension-full h3 {
            color: #fff;
            font-size: 20px;
        }
        .dimension-full p {
            color: #ccc;
            font-size: 15px;
        }

        /* ========== COMPARISON TABLE ========== */
        .compare-table-section {
            background: var(--color-bg);
        }
        .compare-table-wrap {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            overflow-x: auto;
        }
        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
        }
        .compare-table thead th {
            background: var(--color-dark-bg);
            color: #fff;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 14px;
            text-align: center;
            letter-spacing: 0.5px;
            border-bottom: 2px solid var(--color-accent);
        }
        .compare-table thead th:first-child {
            text-align: left;
            border-radius: var(--radius-lg) 0 0 0;
        }
        .compare-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }
        .compare-table tbody td {
            padding: 14px 20px;
            font-size: 14px;
            text-align: center;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text);
            transition: background var(--transition-fast);
        }
        .compare-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--color-primary);
            background: #fafafa;
        }
        .compare-table tbody tr:hover td {
            background: rgba(231, 76, 60, 0.02);
        }
        .compare-table tbody tr:hover td:first-child {
            background: #f5f5f5;
        }
        .compare-table .col-traditional {
            color: var(--color-text-muted);
        }
        .compare-table .col-hupu {
            color: var(--color-accent);
            font-weight: 600;
        }
        .compare-table .check-icon {
            color: #27ae60;
            font-size: 16px;
        }
        .compare-table .cross-icon {
            color: #ccc;
            font-size: 16px;
        }
        .compare-table .star-row td {
            background: rgba(243, 156, 18, 0.03);
        }

        /* ========== SCENARIOS ========== */
        .scenarios-section {
            background: var(--color-white);
        }
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .scenario-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            text-align: center;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .scenario-card .scenario-icon-circle {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(231, 76, 60, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-sm);
            font-size: 24px;
            color: var(--color-accent);
            transition: all var(--transition-normal);
        }
        .scenario-card:hover .scenario-icon-circle {
            background: var(--color-accent);
            color: #fff;
        }
        .scenario-card h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 17px;
            color: var(--color-primary);
            margin: 0 0 8px 0;
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== PROCESS ========== */
        .process-section {
            background: var(--color-bg);
        }
        .process-steps {
            display: flex;
            gap: var(--spacing-md);
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            flex-wrap: wrap;
            justify-content: center;
        }
        .process-step {
            flex: 1;
            min-width: 200px;
            max-width: 260px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            text-align: center;
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            position: relative;
        }
        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .process-step .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-sm);
            transition: all var(--transition-normal);
        }
        .process-step:hover .step-number {
            background: var(--color-gold);
            transform: scale(1.1);
        }
        .process-step h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: var(--color-primary);
            margin: 0 0 6px 0;
        }
        .process-step p {
            font-size: 13px;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.6;
        }
        .process-connector {
            display: flex;
            align-items: center;
            color: var(--color-accent);
            font-size: 20px;
            flex-shrink: 0;
            align-self: center;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--color-white);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            transition: all var(--transition-normal);
            background: #fff;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 16px;
            color: var(--color-primary);
            cursor: pointer;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition-fast);
            line-height: 1.4;
        }
        .faq-question:hover {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.02);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(231, 76, 60, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--color-accent);
            transition: all var(--transition-normal);
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--color-accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px 20px;
        }
        .faq-answer p {
            margin: 0;
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.8;
            border-left: 4px solid var(--color-accent);
            padding-left: 16px;
            background: #fafafa;
            padding: 12px 16px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--color-dark-bg);
            padding: var(--spacing-xxl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: rgba(231, 76, 60, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 300px;
            height: 300px;
            background: rgba(243, 156, 18, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .cta-inner h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 32px;
            color: #fff;
            margin: 0 0 var(--spacing-sm) 0;
            letter-spacing: -0.3px;
        }
        .cta-inner p {
            font-size: 16px;
            color: #ccc;
            margin: 0 0 var(--spacing-lg) 0;
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-form input {
            flex: 1;
            min-width: 280px;
            height: 50px;
            padding: 0 18px;
            border-radius: var(--radius-sm);
            border: 1px solid #444;
            background: #2a2a2a;
            color: #fff;
            font-size: 15px;
            transition: all var(--transition-normal);
            outline: none;
        }
        .cta-form input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
            background: #333;
        }
        .cta-form input::placeholder {
            color: #888;
        }
        .cta-form .btn-submit {
            height: 50px;
            padding: 0 32px;
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition-normal);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .cta-form .btn-submit:hover {
            background: #c0392b;
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.4);
            transform: translateY(-1px);
        }
        .cta-note {
            font-size: 12px;
            color: #888;
            margin-top: var(--spacing-sm);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-dark-bg);
            color: #ccc;
            padding: var(--spacing-xl) 0 var(--spacing-md) 0;
        }
        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid #333;
            margin-bottom: var(--spacing-md);
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: #fff;
            margin: 0 0 var(--spacing-sm) 0;
        }
        .footer-col p {
            font-size: 13px;
            color: #aaa;
            line-height: 1.7;
            margin: 0;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: #aaa;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #888;
        }
        .footer-bottom span {
            white-space: nowrap;
        }
        .footer-bottom .sep {
            color: #555;
            margin: 0 8px;
        }
        .footer-bottom a {
            color: #aaa;
            font-size: 12px;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .hero-content {
                padding-right: 0;
                text-align: center;
            }
            .hero-kpi-row {
                justify-content: center;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-content h1 {
                font-size: 36px;
            }
            .hero-image-wrap {
                max-width: 500px;
                margin: 0 auto;
            }
            .dimensions-grid {
                grid-template-columns: 1fr;
            }
            .dimension-full {
                flex-direction: column;
                text-align: center;
            }
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            .process-connector {
                transform: rotate(90deg);
                margin: -8px 0;
            }
            .process-step {
                max-width: 100%;
                width: 100%;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 100px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                gap: 0;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                padding: 8px 0;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links>li>a {
                padding: 12px 20px;
                border-radius: 0;
                width: 100%;
                text-align: left;
            }
            .nav-links>li>a.active::after {
                display: none;
            }
            .nav-links>li>a.active {
                background: rgba(231, 76, 60, 0.06);
                border-left: 3px solid var(--color-accent);
            }
            .nav-links .dropdown-menu {
                position: static;
                box-shadow: none;
                border: none;
                padding-left: 16px;
                background: #fafafa;
                display: none;
            }
            .nav-links .has-dropdown.open .dropdown-menu {
                display: block;
            }
            .nav-toggle {
                display: block;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .hero-section {
                padding: var(--spacing-lg) 0;
            }
            .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .compare-table thead th,
            .compare-table tbody td {
                padding: 10px 12px;
                font-size: 12px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                min-width: 100%;
                width: 100%;
            }
            .cta-form .btn-submit {
                width: 100%;
            }
            .hero-kpi-row {
                flex-wrap: wrap;
                gap: var(--spacing-sm);
            }
            .hero-kpi-item .kpi-number {
                font-size: 28px;
            }
            .top-bar-left .domain-text {
                display: none;
            }
            .dimension-card {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 24px;
            }
            .hero-badge {
                font-size: 11px;
                padding: 4px 12px;
            }
            .hero-kpi-row {
                gap: 8px;
            }
            .hero-kpi-item .kpi-number {
                font-size: 24px;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 20px;
                font-size: 13px;
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .dimension-full {
                padding: var(--spacing-md);
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .compare-table {
                font-size: 11px;
            }
            .compare-table thead th,
            .compare-table tbody td {
                padding: 8px 10px;
                font-size: 11px;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #e74c3c;
            --color-gold: #f39c12;
            --color-bg: #f5f5f5;
            --color-white: #ffffff;
            --color-text: #1a1a1a;
            --color-text-light: #666666;
            --color-text-muted: #999999;
            --color-border: #e0e0e0;
            --color-dark-bg: #1a1a1a;
            --color-topbar-bg: #111111;
            --color-topbar-text: #aaaaaa;
            --color-surface: #ffffff;
            --color-accent-light: #fdecea;
            --color-gold-light: #fef9f0;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.10);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-xxl: 80px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            padding-top: 100px;
            margin: 0;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #c0392b;
            text-decoration: none;
        }

        a:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
            margin-top: 0;
        }

        h1 {
            font-size: 2.5rem;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.3px;
        }
        h3 {
            font-size: 1.5rem;
            letter-spacing: -0.2px;
        }
        h4 {
            font-size: 1.2rem;
        }

        /* ========== TOP BAR ========== */
        .top-bar-custom {
            background: var(--color-topbar-bg);
            height: 40px;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
            font-size: 12px;
        }
        .top-bar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .top-bar-custom .top-left {
            color: var(--color-topbar-text);
            display: flex;
            align-items: center;
            gap: 12px;
            white-space: nowrap;
        }
        .top-bar-custom .top-left .domain-text {
            color: #ccc;
            font-weight: 500;
            letter-spacing: 0.5px;
        }
        .top-bar-custom .top-left .slogan-text {
            color: var(--color-topbar-text);
            font-size: 11px;
        }
        .top-bar-custom .top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .top-bar-custom .top-right a {
            color: var(--color-topbar-text);
            font-size: 12px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .top-bar-custom .top-right a:hover {
            color: var(--color-accent);
        }
        .top-bar-custom .top-right .login-btn {
            background: var(--color-accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: var(--radius-sm);
            font-size: 11px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }
        .top-bar-custom .top-right .login-btn:hover {
            background: #c0392b;
            color: #fff;
        }

        /* ========== MAIN NAV ========== */
        .main-nav {
            background: var(--color-white);
            height: 60px;
            position: fixed;
            top: 40px;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-normal);
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
        }
        .main-nav.scrolled {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }
        .nav-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: var(--color-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links>li {
            margin: 0;
            position: relative;
        }
        .nav-links>li>a {
            display: block;
            padding: 8px 14px;
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.5px;
        }
        .nav-links>li>a:hover {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.04);
        }
        .nav-links>li>a.active {
            color: var(--color-accent);
            font-weight: 600;
        }
        .nav-links>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .nav-links .has-dropdown {
            position: relative;
        }
        .nav-links .has-dropdown>a .dropdown-arrow {
            font-size: 10px;
            margin-left: 4px;
            transition: transform var(--transition-fast);
        }
        .nav-links .has-dropdown:hover .dropdown-menu {
            display: block;
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .dropdown-menu {
            display: none;
            opacity: 0;
            transform: translateY(-8px);
            position: absolute;
            top: 100%;
            left: 0;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            min-width: 180px;
            padding: 8px 0;
            z-index: 999;
            transition: all var(--transition-normal);
            pointer-events: none;
            list-style: none;
            margin: 0;
        }
        .nav-links .has-dropdown:hover .dropdown-menu {
            display: block;
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .dropdown-menu li {
            margin: 0;
        }
        .dropdown-menu li a {
            display: block;
            padding: 10px 20px;
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 400;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .dropdown-menu li a:hover {
            background: rgba(231, 76, 60, 0.04);
            color: var(--color-accent);
        }
        .dropdown-menu li a.active {
            color: var(--color-accent);
            font-weight: 600;
            background: rgba(231, 76, 60, 0.06);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--color-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.92) 0%, rgba(26, 26, 26, 0.78) 40%, rgba(26, 26, 26, 0.88) 100%), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            min-height: 55vh;
            display: flex;
            align-items: center;
            padding: var(--spacing-xxl) 0;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(231, 76, 60, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(243, 156, 18, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .hero-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: var(--spacing-md);
            animation: fadeInUp 0.6s ease forwards;
        }
        .page-hero h1 {
            color: #fff;
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            animation: fadeInUp 0.6s ease 0.1s forwards;
            opacity: 0;
            letter-spacing: -1px;
        }
        .page-hero .hero-subtitle {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.15rem;
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
            animation: fadeInUp 0.6s ease 0.2s forwards;
            opacity: 0;
            max-width: 650px;
        }
        .page-hero .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            animation: fadeInUp 0.6s ease 0.3s forwards;
            opacity: 0;
        }
        .btn-primary {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 13px 30px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            border: none;
            cursor: pointer;
            text-align: center;
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(231, 76, 60, 0.3);
        }
        .btn-primary:hover {
            background: #c0392b;
            color: #fff;
            box-shadow: 0 6px 20px rgba(231, 76, 60, 0.45);
            transform: translateY(-1px);
        }
        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            border: 2px solid rgba(255, 255, 255, 0.5);
            cursor: pointer;
            text-align: center;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-dark {
            background: var(--color-dark-bg);
            color: #fff;
            padding: var(--spacing-xl) 0;
        }
        .section-accent-light {
            background: var(--color-accent-light);
            padding: var(--spacing-xl) 0;
        }
        .section-gold-light {
            background: var(--color-gold-light);
            padding: var(--spacing-xl) 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }
        .section-title h2 {
            font-size: 2rem;
            margin-bottom: var(--spacing-xs);
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            margin: 12px auto 0;
            border-radius: 2px;
        }
        .section-title p {
            color: var(--color-text-light);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .section-dark .section-title h2 {
            color: #fff;
        }
        .section-dark .section-title p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== COMPARISON CARDS ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .comparison-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .comparison-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .comparison-card .card-icon {
            width: 60px;
            height: 60px;
            background: var(--color-accent-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-sm);
            font-size: 24px;
            color: var(--color-accent);
            transition: all var(--transition-normal);
        }
        .comparison-card:hover .card-icon {
            background: var(--color-accent);
            color: #fff;
            transform: scale(1.08);
        }
        .comparison-card h3 {
            font-size: 1.2rem;
            margin-bottom: var(--spacing-xs);
        }
        .comparison-card p {
            color: var(--color-text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== VS COMPARISON TABLE ========== */
        .vs-comparison {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 0;
            align-items: stretch;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
        }
        .vs-column {
            padding: var(--spacing-lg);
        }
        .vs-column.left {
            background: #fafafa;
            border-right: 1px solid var(--color-border);
        }
        .vs-column.right {
            background: #fffefb;
            border-left: 1px solid var(--color-border);
            position: relative;
        }
        .vs-column.right::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--color-accent);
            border-radius: 0 2px 2px 0;
        }
        .vs-divider {
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            padding: 0 20px;
            letter-spacing: 2px;
            white-space: nowrap;
            min-width: 60px;
        }
        .vs-column h3 {
            font-size: 1.3rem;
            margin-bottom: var(--spacing-md);
            text-align: center;
        }
        .vs-column.left h3 {
            color: var(--color-text-muted);
        }
        .vs-column.right h3 {
            color: var(--color-accent);
        }
        .vs-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px dashed var(--color-border);
            font-size: 0.95rem;
        }
        .vs-row:last-child {
            border-bottom: none;
        }
        .vs-row .label {
            font-weight: 500;
            color: var(--color-text);
        }
        .vs-row .value {
            font-weight: 600;
        }
        .vs-column.left .value {
            color: var(--color-text-muted);
        }
        .vs-column.right .value {
            color: var(--color-accent);
        }
        .vs-check {
            color: #27ae60;
            font-weight: 700;
        }
        .vs-cross {
            color: #999;
        }

        /* ========== SCENARIO CARDS ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }
        .scenario-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .scenario-card .scenario-num {
            width: 44px;
            height: 44px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .scenario-card .scenario-info h3 {
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .scenario-card .scenario-info p {
            color: var(--color-text-light);
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 0;
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: flex;
            gap: 0;
            align-items: stretch;
            flex-wrap: wrap;
        }
        .process-step {
            flex: 1;
            min-width: 200px;
            background: var(--color-white);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            border: 1px solid var(--color-border);
            position: relative;
            transition: all var(--transition-normal);
        }
        .process-step:first-child {
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
        }
        .process-step:last-child {
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
        }
        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -20px;
            top: 50%;
            transform: translateY(-50%);
            width: 0;
            height: 0;
            border-top: 10px solid transparent;
            border-bottom: 10px solid transparent;
            border-left: 20px solid var(--color-accent);
            z-index: 2;
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            z-index: 1;
        }
        .process-step .step-num {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 50%;
            line-height: 40px;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: var(--spacing-sm);
        }
        .process-step h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition-fast);
            color: var(--color-primary);
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-heading);
        }
        .faq-question:hover {
            background: rgba(231, 76, 60, 0.02);
        }
        .faq-question .faq-icon {
            transition: transform var(--transition-normal);
            font-size: 14px;
            color: var(--color-accent);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
            background: #fafafa;
            border-top: 1px solid transparent;
            color: var(--color-text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 16px 24px;
            border-top-color: var(--color-border);
        }
        .faq-item.open {
            border-left: 4px solid var(--color-accent);
            border-radius: var(--radius-md);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-dark-bg);
            padding: var(--spacing-xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(231, 76, 60, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: var(--spacing-sm);
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: var(--spacing-lg);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input[type="email"] {
            flex: 1;
            min-width: 250px;
            height: 48px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 0 16px;
            font-size: 15px;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            transition: all var(--transition-normal);
            outline: none;
        }
        .cta-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-form input[type="email"]:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
            background: rgba(255, 255, 255, 0.12);
        }
        .cta-form .btn-submit {
            height: 48px;
            padding: 0 28px;
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition-normal);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .cta-form .btn-submit:hover {
            background: #c0392b;
            box-shadow: 0 6px 20px rgba(231, 76, 60, 0.5);
            transform: translateY(-1px);
        }
        .cta-note {
            color: rgba(255, 255, 255, 0.5);
            font-size: 12px;
            margin-top: var(--spacing-sm);
        }

        /* ========== FEATURE HIGHLIGHT ========== */
        .feature-highlight {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }
        .feature-highlight .feature-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .feature-highlight .feature-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .feature-highlight .feature-text h2 {
            margin-bottom: var(--spacing-sm);
        }
        .feature-highlight .feature-text p {
            color: var(--color-text-light);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: var(--spacing-sm);
        }
        .feature-highlight .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .feature-highlight .feature-list li {
            padding: 6px 0;
            padding-left: 24px;
            position: relative;
            color: var(--color-text);
            font-size: 0.95rem;
        }
        .feature-highlight .feature-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 8px;
            height: 8px;
            background: var(--color-accent);
            border-radius: 50%;
        }

        /* ========== METRICS ROW ========== */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .metric-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .metric-card .metric-value {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-accent);
            font-family: var(--font-heading);
            line-height: 1;
            margin-bottom: 8px;
        }
        .metric-card .metric-label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            font-weight: 500;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-dark-bg);
            color: #ccc;
            padding: var(--spacing-xl) 0 var(--spacing-md);
            font-size: 14px;
        }
        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: var(--spacing-sm);
            font-weight: 600;
        }
        .footer-col p {
            color: #aaa;
            line-height: 1.7;
            margin: 0;
            font-size: 13px;
        }
        .footer-col a {
            display: block;
            color: #aaa;
            font-size: 13px;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: var(--spacing-md) var(--spacing-md) 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: #888;
        }
        .footer-bottom .sep {
            margin: 0 8px;
            color: #555;
        }
        .footer-bottom a {
            color: #aaa;
            font-size: 12px;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .comparison-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-highlight {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .vs-comparison {
                grid-template-columns: 1fr;
            }
            .vs-divider {
                padding: 12px;
                font-size: 0.9rem;
            }
            .process-steps {
                flex-direction: column;
            }
            .process-step {
                border-radius: var(--radius-md) !important;
            }
            .process-step:not(:last-child)::after {
                display: none;
            }
            .process-step:not(:last-child) {
                border-bottom: 2px solid var(--color-accent);
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 90px;
            }
            .top-bar-custom {
                height: 34px;
            }
            .top-bar-custom .top-left .slogan-text {
                display: none;
            }
            .main-nav {
                top: 34px;
                height: 52px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 8px 0;
                z-index: 999;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links>li {
                width: 100%;
            }
            .nav-links>li>a {
                padding: 12px 20px;
                border-radius: 0;
                font-size: 15px;
            }
            .nav-links>li>a.active::after {
                display: none;
            }
            .nav-links>li>a.active {
                background: rgba(231, 76, 60, 0.06);
            }
            .dropdown-menu {
                position: static;
                box-shadow: none;
                border: none;
                border-radius: 0;
                padding: 0 0 0 16px;
                display: none;
                opacity: 1;
                transform: none;
                pointer-events: auto;
                background: #fafafa;
            }
            .nav-links .has-dropdown.open .dropdown-menu {
                display: block;
            }
            .page-hero {
                min-height: 40vh;
                padding: var(--spacing-lg) 0;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero .hero-subtitle {
                font-size: 0.95rem;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .metrics-row {
                grid-template-columns: 1fr 1fr;
            }
            .scenario-card {
                flex-direction: column;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input[type="email"] {
                width: 100%;
                min-width: auto;
            }
            .cta-form .btn-submit {
                width: 100%;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
            .vs-comparison {
                grid-template-columns: 1fr;
            }
            .vs-divider {
                padding: 8px 16px;
            }
            .feature-highlight {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .metrics-row {
                grid-template-columns: 1fr;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                text-align: center;
            }
            .top-bar-custom .top-left .domain-text {
                font-size: 10px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
        }

/* roulang page: category7 */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #e74c3c;
            --color-gold: #f39c12;
            --color-bg: #f5f5f5;
            --color-white: #ffffff;
            --color-text: #1a1a1a;
            --color-text-light: #666666;
            --color-text-muted: #999999;
            --color-border: #e0e0e0;
            --color-dark-bg: #1a1a1a;
            --color-topbar-bg: #111111;
            --color-topbar-text: #aaaaaa;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-xxl: 80px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            padding-top: 100px;
            min-height: 100vh;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-fast), background var(--transition-fast);
        }
        a:hover {
            color: #c0392b;
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input {
            font-family: inherit;
        }

        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
            margin-bottom: 0.5em;
        }

        h1 {
            font-size: clamp(28px, 4vw, 48px);
        }
        h2 {
            font-size: clamp(24px, 3vw, 36px);
        }
        h3 {
            font-size: clamp(20px, 2.5vw, 28px);
        }
        h4 {
            font-size: clamp(16px, 2vw, 20px);
        }

        p {
            margin-bottom: 1em;
            color: var(--color-text-light);
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ========== TOP BAR ========== */
        .top-bar-custom {
            background: var(--color-topbar-bg);
            height: 40px;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
            font-size: 12px;
            color: var(--color-topbar-text);
        }
        .top-bar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 12px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .top-bar-left span {
            color: var(--color-topbar-text);
            font-size: 12px;
        }
        .top-bar-left .domain-text {
            color: #ccc;
            font-weight: 500;
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .top-bar-right a {
            color: var(--color-topbar-text);
            font-size: 12px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .top-bar-right a:hover {
            color: var(--color-accent);
        }
        .top-bar-right .login-btn {
            background: var(--color-accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            transition: background var(--transition-fast);
        }
        .top-bar-right .login-btn:hover {
            background: #c0392b;
            color: #fff;
        }

        /* ========== MAIN NAV ========== */
        .main-nav {
            background: var(--color-white);
            height: 60px;
            position: fixed;
            top: 40px;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-normal);
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
        }
        .main-nav.scrolled {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.10);
        }
        .nav-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: var(--color-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            color: var(--color-primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
            justify-content: flex-end;
        }
        .nav-links li {
            margin: 0;
            position: relative;
        }
        .nav-links a {
            display: block;
            padding: 8px 14px;
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.5px;
            cursor: pointer;
        }
        .nav-links a:hover {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.04);
        }
        .nav-links a.active {
            color: var(--color-accent);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--color-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.05);
        }
        .nav-toggle:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            min-height: 65vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-attachment: fixed;
            padding: var(--spacing-xl) 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.88) 0%, rgba(26, 26, 26, 0.72) 40%, rgba(26, 26, 26, 0.80) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }
        .hero-text {
            color: #fff;
        }
        .hero-text .hero-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: var(--spacing-md);
            animation: fadeInUp 0.6s ease forwards;
        }
        .hero-text h1 {
            color: #fff;
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            line-height: 1.2;
            animation: fadeInUp 0.7s ease forwards;
            animation-delay: 0.1s;
            opacity: 0;
            animation-fill-mode: forwards;
        }
        .hero-text .hero-subtitle {
            color: rgba(255, 255, 255, 0.85);
            font-size: 17px;
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
            animation: fadeInUp 0.7s ease forwards;
            animation-delay: 0.2s;
            opacity: 0;
            animation-fill-mode: forwards;
        }
        .hero-text .hero-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--color-accent);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 16px;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            animation: fadeInUp 0.7s ease forwards;
            animation-delay: 0.3s;
            opacity: 0;
            animation-fill-mode: forwards;
            cursor: pointer;
            border: none;
            text-decoration: none;
        }
        .hero-text .hero-cta:hover {
            background: #c0392b;
            color: #fff;
            box-shadow: 0 0 24px rgba(231, 76, 60, 0.5);
            transform: translateY(-2px);
        }
        .hero-text .hero-cta i {
            animation: arrowPulse 1.5s ease-in-out infinite;
        }

        .hero-card-panel {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            animation: fadeInUp 0.8s ease forwards;
            animation-delay: 0.25s;
            opacity: 0;
            animation-fill-mode: forwards;
        }
        .hero-card-panel .panel-title {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-card-panel .panel-title i {
            color: var(--color-gold);
        }
        .progress-info {
            display: flex;
            justify-content: space-between;
            color: rgba(255, 255, 255, 0.8);
            font-size: 13px;
            margin-bottom: 8px;
        }
        .progress-info strong {
            color: var(--color-gold);
            font-size: 20px;
        }
        .progress-bar-wrap {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            height: 10px;
            overflow: hidden;
            margin-bottom: var(--spacing-md);
        }
        .progress-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--color-accent), var(--color-gold));
            border-radius: 10px;
            width: 45%;
            transition: width 1.2s ease;
            position: relative;
        }
        .progress-bar-fill.animated {
            width: 45%;
        }
        .reward-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: var(--spacing-md);
        }
        .reward-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            padding: 8px 12px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--color-gold);
        }
        .reward-item i {
            color: var(--color-gold);
            font-size: 14px;
            flex-shrink: 0;
        }
        .reward-item.locked {
            border-left-color: rgba(255, 255, 255, 0.25);
            opacity: 0.6;
        }
        .reward-item.locked i {
            color: rgba(255, 255, 255, 0.4);
        }
        .invite-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            background: var(--color-gold);
            color: #1a1a1a;
            padding: 13px 24px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            cursor: pointer;
            border: none;
            text-decoration: none;
        }
        .invite-btn:hover {
            background: #e67e22;
            color: #1a1a1a;
            box-shadow: 0 0 28px rgba(243, 156, 18, 0.45);
            transform: translateY(-2px);
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @keyframes arrowPulse {
            0%,
            100% {
                transform: translateX(0);
            }
            50% {
                transform: translateX(6px);
            }
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-dark {
            background: var(--color-dark-bg);
            color: #fff;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-dark p {
            color: rgba(255, 255, 255, 0.75);
        }
        .section-gray {
            background: #eef0f2;
        }
        .section-title {
            font-size: clamp(24px, 3.5vw, 36px);
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 50px;
            height: 4px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .section-subtitle {
            color: var(--color-text-light);
            font-size: 16px;
            margin-bottom: var(--spacing-lg);
            max-width: 700px;
        }

        /* ========== TOPIC INTRO ========== */
        .topic-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1.3fr;
            gap: var(--spacing-xl);
            align-items: center;
        }
        .topic-intro-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .topic-intro-image img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-lg);
            transition: transform var(--transition-slow);
        }
        .topic-intro-image:hover img {
            transform: scale(1.03);
        }
        .topic-intro-image .image-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--color-accent);
            color: #fff;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            z-index: 2;
        }
        .topic-intro-text h2 {
            margin-bottom: var(--spacing-sm);
        }
        .topic-intro-text .highlight-stat {
            display: inline-flex;
            align-items: baseline;
            gap: 4px;
            font-size: 42px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
            margin-right: 8px;
        }
        .topic-intro-text .highlight-stat span {
            font-size: 16px;
            font-weight: 400;
            color: var(--color-text-light);
        }
        .topic-stats-row {
            display: flex;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
            margin-top: var(--spacing-md);
        }
        .topic-stat-item {
            text-align: center;
            min-width: 80px;
        }
        .topic-stat-item .stat-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
        }
        .topic-stat-item .stat-label {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ========== FEATURED TOPICS ========== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: var(--spacing-md);
        }
        .featured-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .featured-card.card-large {
            grid-row: span 2;
        }
        .featured-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }
        .featured-card.card-large .card-img {
            aspect-ratio: 16/11;
        }
        .featured-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .featured-card:hover .card-img img {
            transform: scale(1.06);
        }
        .featured-card .card-img .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.5px;
            z-index: 2;
        }
        .featured-card .card-img .card-badge.hot {
            background: var(--color-gold);
            color: #1a1a1a;
        }
        .featured-card .card-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .featured-card .card-body h3 {
            font-size: 18px;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .featured-card.card-large .card-body h3 {
            font-size: 22px;
        }
        .featured-card .card-body .card-excerpt {
            color: var(--color-text-muted);
            font-size: 14px;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .featured-card .card-body .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .featured-card .card-body .card-link {
            color: var(--color-accent);
            font-weight: 600;
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }
        .featured-card .card-body .card-link:hover {
            gap: 8px;
            color: #c0392b;
        }

        /* ========== TOPIC LIST ========== */
        .topic-list-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }
        .topic-list-card {
            display: flex;
            gap: var(--spacing-md);
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            cursor: pointer;
            align-items: flex-start;
        }
        .topic-list-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .topic-list-card .list-card-img {
            width: 140px;
            height: 100px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .topic-list-card .list-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .topic-list-card:hover .list-card-img img {
            transform: scale(1.05);
        }
        .topic-list-card .list-card-info h4 {
            font-size: 16px;
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .topic-list-card .list-card-info .list-excerpt {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .topic-list-card .list-card-info .list-tag {
            display: inline-block;
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(231, 76, 60, 0.08);
            color: var(--color-accent);
            font-weight: 500;
        }

        /* ========== DATA SHOWCASE ========== */
        .data-showcase {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .data-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .data-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-accent);
            border-radius: 0 0 3px 3px;
            transform: scaleX(0);
            transition: transform var(--transition-normal);
            transform-origin: left;
        }
        .data-card:hover::before {
            transform: scaleX(1);
        }
        .data-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .data-card .data-icon {
            font-size: 32px;
            color: var(--color-accent);
            margin-bottom: var(--spacing-sm);
        }
        .data-card .data-number {
            font-size: 44px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 4px;
        }
        .data-card .data-label {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.4;
        }

        /* ========== DEEP TOPIC ========== */
        .deep-topic-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .deep-topic-block .deep-image {
            position: relative;
            min-height: 380px;
        }
        .deep-topic-block .deep-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .deep-topic-block .deep-content {
            padding: var(--spacing-xl) var(--spacing-lg);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .deep-topic-block .deep-content .deep-label {
            display: inline-block;
            background: rgba(243, 156, 18, 0.12);
            color: #c7850a;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: var(--spacing-sm);
            width: fit-content;
        }
        .deep-topic-block .deep-content h3 {
            font-size: 26px;
            margin-bottom: var(--spacing-sm);
        }
        .deep-topic-block .deep-content p {
            color: var(--color-text-light);
            line-height: 1.8;
            margin-bottom: var(--spacing-md);
        }
        .deep-topic-block .deep-content .deep-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 15px;
            transition: gap var(--transition-fast);
            width: fit-content;
        }
        .deep-topic-block .deep-content .deep-link:hover {
            gap: 10px;
            color: #c0392b;
        }

        /* ========== TAG CLOUD ========== */
        .tag-cloud-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .tag-pill {
            padding: 10px 20px;
            border-radius: 24px;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .tag-pill:hover {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .tag-pill.active-tag {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
            font-weight: 600;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            color: var(--color-primary);
            transition: color var(--transition-fast);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-body);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            font-size: 14px;
            transition: transform var(--transition-normal);
            color: var(--color-text-muted);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
            background: #fafafa;
            border-left: 4px solid var(--color-accent);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 20px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--color-dark-bg);
            padding: var(--spacing-xl) 0;
            text-align: center;
        }
        .cta-inner {
            max-width: 600px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .cta-inner h2 {
            color: #fff;
            font-size: clamp(24px, 3.5vw, 34px);
            margin-bottom: var(--spacing-sm);
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            margin-bottom: var(--spacing-lg);
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 220px;
            height: 48px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            padding: 0 16px;
            font-size: 14px;
            transition: all var(--transition-fast);
            outline: none;
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-form input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
            background: rgba(255, 255, 255, 0.12);
        }
        .cta-form button {
            height: 48px;
            padding: 0 28px;
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition-normal);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .cta-form button:hover {
            background: #c0392b;
            box-shadow: 0 0 28px rgba(231, 76, 60, 0.45);
            transform: translateY(-1px);
        }
        .cta-note {
            color: rgba(255, 255, 255, 0.45);
            font-size: 12px;
            margin-top: var(--spacing-sm);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-dark-bg);
            color: #ccc;
            padding: var(--spacing-xl) 0 var(--spacing-md);
            font-size: 14px;
        }
        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: var(--spacing-sm);
            font-weight: 600;
        }
        .footer-col p {
            color: #aaa;
            font-size: 13px;
            line-height: 1.7;
            margin: 0;
        }
        .footer-col a {
            display: block;
            color: #aaa;
            font-size: 13px;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: var(--spacing-md) var(--spacing-md) 0;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #888;
            gap: 8px;
        }
        .footer-bottom span {
            white-space: nowrap;
        }
        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.2);
        }
        .footer-bottom a {
            color: #aaa;
            font-size: 12px;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .hero-card-panel {
                max-width: 500px;
                margin: 0 auto;
            }
            .hero-section {
                min-height: auto;
                padding: var(--spacing-xxl) 0 var(--spacing-xl);
            }
            .featured-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
            }
            .featured-card.card-large {
                grid-row: span 1;
                grid-column: span 2;
            }
            .topic-intro-grid {
                grid-template-columns: 1fr;
            }
            .topic-intro-image {
                max-width: 500px;
                margin: 0 auto;
            }
            .data-showcase {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-topic-block {
                grid-template-columns: 1fr;
            }
            .deep-topic-block .deep-image {
                min-height: 240px;
            }
            .topic-list-section {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 100px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: var(--spacing-sm);
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                gap: 0;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 0;
                border-bottom: 1px solid #f0f0f0;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: rgba(231, 76, 60, 0.06);
            }
            .nav-toggle {
                display: block;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .featured-card.card-large {
                grid-column: span 1;
            }
            .data-showcase {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }
            .data-card .data-number {
                font-size: 32px;
            }
            .hero-text h1 {
                font-size: 28px;
            }
            .hero-text .hero-subtitle {
                font-size: 15px;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                width: 100%;
                max-width: 400px;
            }
            .cta-form button {
                width: 100%;
                max-width: 400px;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .topic-list-card {
                flex-direction: column;
            }
            .topic-list-card .list-card-img {
                width: 100%;
                height: 160px;
            }
            .deep-topic-block .deep-content {
                padding: var(--spacing-md);
            }
            .deep-topic-block .deep-content h3 {
                font-size: 20px;
            }
        }

        @media (max-width: 520px) {
            .data-showcase {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .data-card {
                padding: var(--spacing-sm);
            }
            .data-card .data-number {
                font-size: 26px;
            }
            .data-card .data-icon {
                font-size: 24px;
            }
            .hero-section {
                padding: var(--spacing-xl) 0;
            }
            .hero-card-panel {
                padding: var(--spacing-md);
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .footer-inner {
                grid-template-columns: 1fr;
            }
            .tag-pill {
                padding: 8px 14px;
                font-size: 12px;
            }
            .featured-card .card-body h3 {
                font-size: 16px;
            }
            .featured-card.card-large .card-body h3 {
                font-size: 18px;
            }
            .topic-stats-row {
                gap: var(--spacing-sm);
            }
            .topic-stat-item .stat-num {
                font-size: 24px;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #e74c3c;
            --color-gold: #f39c12;
            --color-bg: #f5f5f5;
            --color-white: #ffffff;
            --color-text: #1a1a1a;
            --color-text-light: #666666;
            --color-text-muted: #999999;
            --color-border: #e0e0e0;
            --color-dark-bg: #1a1a1a;
            --color-topbar-bg: #111111;
            --color-topbar-text: #aaaaaa;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-xxl: 80px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            padding-top: 100px;
            margin: 0;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #c0392b;
            text-decoration: none;
        }

        a:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ========== TOP BAR ========== */
        .top-bar-custom {
            background: var(--color-topbar-bg);
            height: 40px;
            display: flex;
            align-items: center;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            padding: 0 var(--spacing-md);
        }

        .top-bar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .top-bar-custom .top-left {
            color: var(--color-topbar-text);
            font-size: 12px;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .top-bar-custom .top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .top-bar-custom .top-right a {
            color: var(--color-topbar-text);
            font-size: 12px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .top-bar-custom .top-right a:hover {
            color: var(--color-accent);
        }

        .top-bar-custom .top-right .login-btn {
            background: var(--color-accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            transition: background var(--transition-fast);
        }

        .top-bar-custom .top-right .login-btn:hover {
            background: #c0392b;
            color: #fff;
        }

        /* ========== MAIN NAV ========== */
        .main-nav {
            background: var(--color-white);
            height: 60px;
            position: fixed;
            top: 40px;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-normal);
            display: flex;
            align-items: center;
            padding: 0 var(--spacing-md);
        }

        .main-nav.scrolled {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }

        .nav-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: var(--color-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
            position: relative;
        }

        .nav-links>li>a {
            display: block;
            padding: 8px 14px;
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
            cursor: pointer;
        }

        .nav-links>li>a:hover {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.04);
        }

        .nav-links>li>a.active {
            color: var(--color-accent);
            font-weight: 600;
            position: relative;
        }

        .nav-links>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--color-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ========== HERO ========== */
        .page-hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 55vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(26, 26, 26, 0.6) 100%);
            z-index: 1;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-inner {
            display: flex;
            align-items: center;
            gap: var(--spacing-xl);
            flex-wrap: wrap;
        }

        .hero-brand-area {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
        }

        .hero-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 36px;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.4);
        }

        .hero-text h1 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 48px;
            color: #fff;
            margin: 0 0 8px;
            letter-spacing: 1px;
            animation: fadeInUp 0.7s ease forwards;
        }

        .hero-text .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            line-height: 1.6;
            max-width: 600px;
            animation: fadeInUp 0.7s ease 0.15s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-badges {
            display: flex;
            gap: var(--spacing-lg);
            margin-top: var(--spacing-md);
            flex-wrap: wrap;
            animation: fadeInUp 0.7s ease 0.3s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-badge {
            text-align: center;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: var(--spacing-sm) var(--spacing-md);
            min-width: 100px;
        }

        .hero-badge .badge-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-gold);
            display: block;
            line-height: 1;
        }

        .hero-badge .badge-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
            display: block;
        }

        .hero-cta {
            margin-top: var(--spacing-md);
            animation: fadeInUp 0.7s ease 0.4s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-cta .btn-primary-lg {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 16px rgba(231, 76, 60, 0.3);
        }

        .hero-cta .btn-primary-lg:hover {
            background: #c0392b;
            color: #fff;
            box-shadow: 0 6px 24px rgba(231, 76, 60, 0.5);
            transform: translateY(-2px);
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }

        .section-alt {
            background: var(--color-white);
        }

        .section-dark {
            background: var(--color-dark-bg);
            color: #fff;
        }

        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 32px;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--color-text-light);
            margin-bottom: var(--spacing-lg);
            max-width: 700px;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== REPORT CARDS ========== */
        .report-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .report-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .report-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .report-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .report-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .report-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .report-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #fff;
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 20px;
            font-weight: 500;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .report-card .card-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .report-card .card-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 18px;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .report-card .card-desc {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 12px;
        }

        .report-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--color-text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--color-border);
        }

        .report-card .card-link {
            font-weight: 600;
            color: var(--color-accent);
            font-size: 13px;
            transition: color var(--transition-fast);
        }

        .report-card .card-link:hover {
            color: #c0392b;
        }

        .report-card .card-link i {
            margin-left: 4px;
            font-size: 11px;
            transition: transform var(--transition-fast);
        }

        .report-card .card-link:hover i {
            transform: translateX(3px);
        }

        /* ========== FEATURE LIST ========== */
        .feature-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }

        .feature-item {
            display: flex;
            gap: var(--spacing-sm);
            align-items: flex-start;
            padding: var(--spacing-md);
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
        }

        .feature-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(231, 76, 60, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 20px;
            color: var(--color-accent);
        }

        .feature-text h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            margin: 0 0 4px;
            color: var(--color-primary);
        }

        .feature-text p {
            font-size: 14px;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: nowrap;
            counter-reset: step;
        }

        .process-step {
            flex: 1;
            text-align: center;
            position: relative;
            padding: var(--spacing-lg) var(--spacing-md);
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            counter-increment: step;
        }

        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .process-step .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(231, 76, 60, 0.3);
        }

        .process-step h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            margin: 0 0 6px;
            color: var(--color-primary);
        }

        .process-step p {
            font-size: 13px;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.6;
        }

        .process-connector {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            width: 40px;
            color: var(--color-accent);
            font-size: 20px;
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .comparison-table thead th {
            background: var(--color-primary);
            color: #fff;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 14px;
            text-align: center;
            letter-spacing: 0.5px;
        }

        .comparison-table thead th.highlight-col {
            background: var(--color-accent);
        }

        .comparison-table tbody td {
            padding: 14px 20px;
            text-align: center;
            font-size: 14px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text);
        }

        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tbody tr:hover td {
            background: rgba(231, 76, 60, 0.03);
        }

        .comparison-table .check-icon {
            color: #27ae60;
            font-weight: 700;
        }

        .comparison-table .cross-icon {
            color: #c0392b;
        }

        .comparison-table .star-icon {
            color: var(--color-gold);
        }

        /* ========== FAQ ACCORDION ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--color-white);
            transition: all var(--transition-normal);
        }

        .faq-accordion .accordion-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-accordion .accordion-title {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 15px;
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--color-primary);
            user-select: none;
            transition: background var(--transition-fast);
            margin: 0;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
        }

        .faq-accordion .accordion-title:hover {
            background: rgba(0, 0, 0, 0.02);
        }

        .faq-accordion .accordion-title .accordion-icon {
            font-size: 14px;
            color: var(--color-accent);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
        }

        .faq-accordion .accordion-item.is-active .accordion-title .accordion-icon {
            transform: rotate(180deg);
        }

        .faq-accordion .accordion-content {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.8;
            border-left: 4px solid var(--color-accent);
            margin-left: 0;
        }

        .faq-accordion .accordion-item.is-active .accordion-content {
            max-height: 400px;
            padding: 16px 20px;
            background: rgba(231, 76, 60, 0.02);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-dark-bg);
            padding: var(--spacing-xl) 0;
            text-align: center;
        }

        .cta-section .cta-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 28px;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-section .cta-subtitle {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: var(--spacing-md);
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 240px;
            height: 48px;
            padding: 0 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            transition: all var(--transition-fast);
            outline: none;
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
            background: rgba(255, 255, 255, 0.12);
        }

        .cta-form .btn-submit {
            height: 48px;
            padding: 0 28px;
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition-normal);
            white-space: nowrap;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(231, 76, 60, 0.3);
        }

        .cta-form .btn-submit:hover {
            background: #c0392b;
            box-shadow: 0 6px 24px rgba(231, 76, 60, 0.5);
            transform: translateY(-2px);
        }

        .cta-note {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            margin-top: 12px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-dark-bg);
            color: #ccc;
            padding: var(--spacing-xl) 0 var(--spacing-md);
            font-size: 14px;
        }

        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .footer-col p {
            font-size: 13px;
            color: #aaa;
            line-height: 1.7;
            margin: 0;
        }

        .footer-col a {
            display: block;
            color: #ccc;
            font-size: 13px;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: var(--spacing-md) var(--spacing-md) 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: 12px;
            color: #888;
            justify-content: space-between;
            align-items: center;
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: #555;
        }

        .footer-bottom a {
            color: #ccc;
            font-size: 12px;
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .report-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-list {
                grid-template-columns: 1fr 1fr;
            }
            .process-steps {
                flex-wrap: wrap;
            }
            .process-connector {
                display: none;
            }
            .process-step {
                flex: 1 1 calc(50% - 12px);
                min-width: 200px;
            }
            .page-hero {
                min-height: 45vh;
            }
            .hero-text h1 {
                font-size: 36px;
            }
            .footer-inner {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 100px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: var(--spacing-sm);
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                gap: 0;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links>li>a {
                padding: 12px 16px;
                border-radius: 0;
                font-size: 15px;
            }
            .nav-links>li>a.active::after {
                display: none;
            }
            .nav-links>li>a.active {
                background: rgba(231, 76, 60, 0.06);
                border-left: 3px solid var(--color-accent);
            }
            .report-grid {
                grid-template-columns: 1fr;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .process-steps {
                flex-direction: column;
            }
            .process-step {
                flex: 1 1 auto;
            }
            .page-hero {
                min-height: 40vh;
            }
            .hero-text h1 {
                font-size: 28px;
            }
            .hero-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: var(--spacing-md);
            }
            .hero-badges {
                gap: var(--spacing-sm);
            }
            .hero-badge {
                min-width: 80px;
                padding: var(--spacing-xs) var(--spacing-sm);
            }
            .hero-badge .badge-number {
                font-size: 24px;
            }
            .hero-avatar {
                width: 60px;
                height: 60px;
                font-size: 26px;
            }
            .section-title {
                font-size: 24px;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                width: 100%;
                min-width: 0;
            }
            .cta-form .btn-submit {
                width: 100%;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 12px;
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 24px;
            }
            .hero-text .hero-subtitle {
                font-size: 14px;
            }
            .hero-badges {
                gap: 8px;
            }
            .hero-badge {
                min-width: 70px;
                padding: 8px 10px;
            }
            .hero-badge .badge-number {
                font-size: 20px;
            }
            .hero-badge .badge-label {
                font-size: 10px;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-title {
                font-size: 22px;
            }
            .report-card .card-title {
                font-size: 16px;
            }
        }