/* roulang page: index */
:root {
            --primary: #2E6BA6;
            --primary-hover: #275C8F;
            --primary-light: #E8F0F8;
            --secondary: #5FA8D3;
            --secondary-light: #EBF3FA;
            --bg: #F7F9FC;
            --bg-alt: #EDF2F7;
            --card-bg: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #5B6773;
            --text-muted: #8A94A1;
            --border: #E2E8F0;
            --border-light: #EEF2F7;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 4px 16px rgba(30, 64, 112, 0.07);
            --shadow-hover: 0 8px 24px rgba(30, 64, 112, 0.13);
            --shadow-lg: 0 16px 48px rgba(30, 64, 112, 0.12);
            --spacing-section: 64px;
            --spacing-card: 24px;
            --transition: all 0.25s ease;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--primary-hover);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 0.5em;
        }

        h1 {
            font-size: 2.25rem;
            line-height: 1.25;
        }

        h2 {
            font-size: 1.625rem;
            line-height: 1.35;
        }

        h3 {
            font-size: 1.25rem;
            line-height: 1.4;
        }

        p {
            margin-bottom: 1em;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: var(--spacing-section) 0;
        }

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

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

        .section-tight {
            padding: 40px 0;
        }

        .text-center {
            text-align: center;
        }

        .text-muted {
            color: var(--text-muted);
        }

        .text-secondary {
            color: var(--text-secondary);
        }

        .mt-0 {
            margin-top: 0;
        }

        .mb-0 {
            margin-bottom: 0;
        }

        .mb-1 {
            margin-bottom: 8px;
        }

        .mb-2 {
            margin-bottom: 16px;
        }

        .mb-3 {
            margin-bottom: 24px;
        }

        .mb-4 {
            margin-bottom: 32px;
        }

        .mb-5 {
            margin-bottom: 48px;
        }

        .mt-2 {
            margin-top: 16px;
        }

        .mt-3 {
            margin-top: 24px;
        }

        .mt-4 {
            margin-top: 32px;
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }

        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-secondary {
            background-color: var(--secondary-light);
            color: var(--primary-hover);
        }

        .badge-dark {
            background-color: rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            text-align: center;
            line-height: 1.5;
            text-decoration: none;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(46, 107, 166, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-outline:hover {
            background-color: rgba(46, 107, 166, 0.08);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }

        .btn-white {
            background-color: #fff;
            color: var(--primary);
        }

        .btn-white:hover {
            background-color: #f0f4f8;
            color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(255, 255, 255, 0.25);
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 1.05rem;
            border-radius: var(--radius-sm);
        }

        .btn-sm {
            padding: 6px 16px;
            font-size: 0.85rem;
            border-radius: 6px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 64, 112, 0.04);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background-color: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 14px;
            gap: 8px;
            transition: var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 166, 0.12);
            background-color: #fff;
        }

        .search-box i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .search-box input {
            border: none;
            background: transparent;
            font-size: 0.9rem;
            color: var(--text);
            width: 140px;
            outline: none;
            font-family: var(--font);
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .header-cta {
            white-space: nowrap;
        }

        .header-nav {
            border-top: 1px solid var(--border-light);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }

        .header-nav::-webkit-scrollbar {
            height: 4px;
        }

        .header-nav::-webkit-scrollbar-track {
            background: transparent;
        }

        .header-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 999px;
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0;
            min-width: max-content;
        }

        .nav-tab {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }

        .nav-tab:hover {
            background-color: var(--bg-alt);
            color: var(--text);
        }

        .nav-tab.active {
            background-color: var(--primary);
            color: #fff;
        }

        .nav-tab.active:hover {
            background-color: var(--primary-hover);
            color: #fff;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.4rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            background-color: var(--bg-alt);
        }

        .mobile-menu {
            display: none;
            background-color: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 0;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 10px 16px;
            color: var(--text);
            font-size: 0.95rem;
            border-radius: 8px;
            transition: var(--transition);
        }

        .mobile-menu a:hover {
            background-color: var(--bg-alt);
            color: var(--primary);
        }

        .mobile-menu a.active {
            background-color: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        /* Hero */
        .hero {
            position: relative;
            background-color: #1a2b3d;
            color: #fff;
            padding: 72px 0 64px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/e930bc16f619e550.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.5;
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 43, 61, 0.82) 0%, rgba(26, 43, 61, 0.55) 50%, rgba(26, 43, 61, 0.75) 100%);
            z-index: 2;
        }

        .hero .container {
            position: relative;
            z-index: 3;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #fff;
            margin-bottom: 20px;
        }

        .hero-badge i {
            color: #FFD166;
            font-size: 0.75rem;
        }

        .hero-title {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }

        .hero-subtitle {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hero-metric {
            display: flex;
            flex-direction: column;
        }

        .hero-metric-value {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }

        .hero-metric-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 28px;
            width: 100%;
            max-width: 420px;
            backdrop-filter: blur(10px);
        }

        .hero-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .hero-card-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
        }

        .hero-card-badge {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 0.75rem;
            color: #fff;
        }

        .hero-card-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .hero-card-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-sm);
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.85);
        }

        .hero-card-item .value {
            font-weight: 600;
            color: #FFD166;
        }

        /* Section headers */
        .section-header {
            max-width: 680px;
            margin-bottom: 36px;
        }

        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.04em;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Stats strip */
        .stats-strip {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 28px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .stat-item {
            text-align: center;
            padding: 12px 8px;
        }

        .stat-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* Card grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .card-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .card-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-text {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
            flex: 1;
        }

        .card-link {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card-link:hover {
            color: var(--primary-hover);
        }

        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            color: var(--text-muted);
            background: var(--bg-alt);
            border-radius: 999px;
            padding: 2px 10px;
            margin-bottom: 8px;
        }

        /* Info list */
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .info-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 14px 16px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .info-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .info-icon {
            width: 36px;
            height: 36px;
            background: var(--primary-light);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .info-content h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 2px;
        }

        .info-content p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* Comparison table */
        .table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            background: var(--card-bg);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 640px;
        }

        .comparison-table th {
            background: var(--bg-alt);
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
            color: var(--text);
            border-bottom: 1px solid var(--border);
            white-space: nowrap;
        }

        .comparison-table td {
            padding: 12px 18px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
        }

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

        .comparison-table tr:hover td {
            background: var(--bg);
        }

        .comparison-table .highlight {
            color: var(--primary);
            font-weight: 600;
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: var(--border);
        }

        .timeline-item {
            position: relative;
            padding-bottom: 24px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -28px;
            top: 4px;
            width: 14px;
            height: 14px;
            background: var(--primary);
            border-radius: 50%;
            border: 3px solid var(--primary-light);
        }

        .timeline-item h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .timeline-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .faq-question {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font);
        }

        .faq-question i {
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

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

        .faq-answer-inner {
            padding: 0 20px 16px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Form */
        .form-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 32px 36px;
            max-width: 560px;
            margin: 0 auto;
        }

        .form-card h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .form-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 6px;
        }

        .form-group select,
        .form-group input {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            color: var(--text);
            background: #fff;
            outline: none;
            transition: var(--transition);
            font-family: var(--font);
        }

        .form-group select:focus,
        .form-group input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 166, 0.12);
        }

        .form-group select {
            appearance: auto;
            cursor: pointer;
        }

        /* Quick answers */
        .quick-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .quick-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 18px 20px;
            transition: var(--transition);
        }

        .quick-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .quick-card h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .quick-card h4 i {
            color: var(--primary);
            font-size: 0.85rem;
        }

        .quick-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* Data sample */
        .data-sample-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .data-sample-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 24px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .data-sample-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .data-sample-card .match-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-bottom: 10px;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .data-sample-card .score {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            text-align: center;
            margin-bottom: 10px;
        }

        .data-sample-card .match-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* Terminology */
        .term-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .term-item {
            display: flex;
            gap: 12px;
            padding: 14px 16px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            align-items: flex-start;
        }

        .term-item .term-label {
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--primary);
            flex-shrink: 0;
            min-width: 60px;
        }

        .term-item .term-desc {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Subscribe strip */
        .subscribe-strip {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
        }

        .subscribe-strip h3 {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .subscribe-strip p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.88rem;
            margin-bottom: 0;
        }

        .subscribe-strip .btn {
            white-space: nowrap;
        }

        /* News ticker */
        .ticker-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .ticker-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.88rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .ticker-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .ticker-item .ticker-time {
            font-weight: 600;
            color: var(--primary);
            flex-shrink: 0;
            min-width: 50px;
        }

        .ticker-item .ticker-text {
            flex: 1;
        }

        /* Footer */
        .site-footer {
            background: #16233B;
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .footer-col ul a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                gap: 32px;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .data-sample-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }

            .container {
                padding: 0 16px;
            }

            .header-top {
                padding: 10px 0;
                gap: 12px;
            }

            .logo {
                font-size: 1.15rem;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }

            .search-box input {
                width: 100px;
            }

            .header-cta {
                display: none;
            }

            .mobile-toggle {
                display: block;
            }

            .header-nav {
                display: none;
            }

            .mobile-menu.open {
                display: block;
            }

            .hero {
                padding: 48px 0 40px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .hero-content {
                max-width: 100%;
            }

            .hero-title {
                font-size: 1.8rem;
            }

            .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-card {
                max-width: 100%;
                padding: 20px;
            }

            .hero-metrics {
                gap: 16px;
            }

            .hero-metric-value {
                font-size: 1.3rem;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .card-grid,
            .card-grid-2,
            .data-sample-grid,
            .quick-grid,
            .term-list {
                grid-template-columns: 1fr;
            }

            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .card-img {
                height: 150px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }

            .stat-value {
                font-size: 1.5rem;
            }

            .form-card {
                padding: 22px 20px;
            }

            .subscribe-strip {
                padding: 24px 20px;
                flex-direction: column;
                text-align: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .footer-bottom-links {
                justify-content: center;
            }

            .ticker-item {
                flex-wrap: wrap;
            }

            .ticker-item .ticker-time {
                min-width: auto;
            }
        }

        @media (max-width: 520px) {
            :root {
                --spacing-section: 36px;
            }

            .card-grid-4 {
                grid-template-columns: 1fr;
            }

            .hero-title {
                font-size: 1.5rem;
            }

            .hero-badge {
                font-size: 0.75rem;
                padding: 4px 12px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-metrics {
                flex-direction: column;
                gap: 10px;
            }

            .section-title {
                font-size: 1.2rem;
            }

            .btn-lg {
                padding: 10px 20px;
                font-size: 0.95rem;
            }

            .form-card {
                padding: 18px 16px;
            }

            .nav-tabs {
                gap: 0;
            }

            .nav-tab {
                padding: 6px 12px;
                font-size: 0.82rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2E6BA6;
            --primary-hover: #275C8F;
            --primary-light: #E8F0F8;
            --secondary: #5FA8D3;
            --secondary-light: #EBF3FA;
            --bg: #F7F9FC;
            --bg-alt: #EDF2F7;
            --card-bg: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #5B6773;
            --text-muted: #8A94A1;
            --border: #E2E8F0;
            --border-light: #EEF2F7;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 4px 16px rgba(30, 64, 112, 0.07);
            --shadow-hover: 0 8px 24px rgba(30, 64, 112, 0.13);
            --shadow-lg: 0 16px 48px rgba(30, 64, 112, 0.12);
            --spacing-section: 64px;
            --spacing-card: 24px;
            --transition: all 0.25s ease;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --spacing-section: 36px;
            }
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--primary-hover);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: var(--spacing-section) 0;
        }

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

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

        .section-tight {
            padding: 40px 0;
        }

        .text-center {
            text-align: center;
        }

        .text-muted {
            color: var(--text-muted);
        }

        .text-secondary {
            color: var(--text-secondary);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }

        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-secondary {
            background-color: var(--secondary-light);
            color: var(--primary-hover);
        }

        .badge-dark {
            background-color: rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            text-align: center;
            line-height: 1.5;
            text-decoration: none;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(46, 107, 166, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-outline:hover {
            background-color: rgba(46, 107, 166, 0.08);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }

        .btn-white {
            background-color: #fff;
            color: var(--primary);
        }

        .btn-white:hover {
            background-color: #f0f4f8;
            color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(255, 255, 255, 0.25);
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 1.05rem;
            border-radius: var(--radius-sm);
        }

        .btn-sm {
            padding: 6px 16px;
            font-size: 0.85rem;
            border-radius: 6px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 64, 112, 0.04);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
            max-width: 300px;
        }

        .header-search input {
            flex: 1;
            padding: 8px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            background-color: var(--bg);
            color: var(--text);
            transition: var(--transition);
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 166, 0.12);
        }

        .header-search-btn {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background-color: var(--primary-light);
            border: none;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .header-search-btn:hover {
            background-color: var(--primary);
            color: #fff;
        }

        .header-cta .btn {
            white-space: nowrap;
        }

        .header-nav {
            padding: 8px 0 10px;
            border-top: 1px solid var(--border-light);
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            overflow-x: auto;
            scrollbar-width: thin;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 2px;
        }

        .nav-tabs::-webkit-scrollbar {
            height: 4px;
        }

        .nav-tabs::-webkit-scrollbar-thumb {
            background-color: var(--border);
            border-radius: 4px;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            white-space: nowrap;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .nav-tab:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-tab.active {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(46, 107, 166, 0.25);
        }

        .card {
            background-color: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: var(--spacing-card);
            transition: var(--transition);
            height: 100%;
        }

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

        .card-media {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 16px;
            background-color: var(--bg-alt);
            aspect-ratio: 16/9;
        }

        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .card:hover .card-media img {
            transform: scale(1.02);
        }

        .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .card-title a {
            color: inherit;
            text-decoration: none;
        }

        .card-title a:hover {
            color: var(--primary);
        }

        .card-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0 0 12px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .card-meta .badge {
            font-size: 0.75rem;
            padding: 3px 10px;
        }

        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin: 0 0 28px;
            line-height: 1.7;
            max-width: 720px;
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header .badge {
            margin-bottom: 10px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .separator {
            color: var(--text-muted);
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        .stat-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-item {
            text-align: center;
            background-color: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 16px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

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

        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.88rem;
            color: var(--text-secondary);
        }

        .comparison-table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background-color: var(--card-bg);
            box-shadow: var(--shadow);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 14px 18px;
            text-align: left;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border-light);
        }

        .comparison-table th {
            background-color: var(--primary-light);
            color: var(--primary-hover);
            font-weight: 600;
            font-size: 0.88rem;
            white-space: nowrap;
        }

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

        .comparison-table tr:hover td {
            background-color: var(--bg);
        }

        .comparison-table .team-name {
            font-weight: 600;
            color: var(--text);
        }

        .comparison-table .highlight {
            color: var(--primary);
            font-weight: 600;
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .article-list-item {
            display: flex;
            gap: 16px;
            background-color: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px;
            transition: var(--transition);
            text-decoration: none;
            color: inherit;
        }

        .article-list-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-1px);
        }

        .article-list-thumb {
            width: 100px;
            height: 68px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background-color: var(--bg-alt);
            flex-shrink: 0;
        }

        .article-list-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-list-content {
            flex: 1;
            min-width: 0;
        }

        .article-list-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
            line-height: 1.4;
        }

        .article-list-item:hover .article-list-title {
            color: var(--primary);
        }

        .article-list-summary {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0 0 4px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-list-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-link {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            background-color: var(--card-bg);
            border: 1px solid var(--border);
            text-decoration: none;
            transition: var(--transition);
        }

        .tag-link:hover {
            color: var(--primary);
            border-color: var(--primary);
            background-color: var(--primary-light);
        }

        .tag-link.active {
            color: #fff;
            background-color: var(--primary);
            border-color: var(--primary);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background-color: var(--card-bg);
            border: 1px solid var(--border);
            border-left: 4px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 18px 20px;
            transition: var(--transition);
        }

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

        .faq-question {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.5;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .faq-question .faq-icon {
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 2px;
            font-size: 1rem;
        }

        .faq-answer {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 26px;
            margin: 0;
        }

        .cta-card {
            background: linear-gradient(135deg, #2E6BA6 0%, #3A7CC3 100%);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }

        .cta-content h3 {
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }

        .site-footer {
            background-color: #16233B;
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 10px;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 12px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 0.88rem;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }

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

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-bottom-links a:hover {
            color: #fff;
        }

        .footer-bottom-links span {
            color: rgba(255, 255, 255, 0.3);
        }

        @media (max-width: 991px) {
            .stat-bar {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 767px) {
            .header-top {
                flex-wrap: wrap;
                gap: 12px;
            }

            .header-search {
                order: 3;
                max-width: 100%;
                flex-basis: 100%;
            }

            .header-cta {
                margin-left: auto;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 22px;
            }

            .cta-actions {
                width: 100%;
                flex-direction: column;
            }

            .btn-lg {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .stat-bar {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-number {
                font-size: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .article-list-thumb {
                width: 72px;
                height: 52px;
            }

            .card {
                padding: 16px;
            }

            .section-header {
                margin-bottom: 20px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2E6BA6;
            --primary-hover: #275C8F;
            --primary-light: #E8F0F8;
            --secondary: #5FA8D3;
            --secondary-light: #EBF3FA;
            --bg: #F7F9FC;
            --bg-alt: #EDF2F7;
            --card-bg: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #5B6773;
            --text-muted: #8A94A1;
            --border: #E2E8F0;
            --border-light: #EEF2F7;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 4px 16px rgba(30, 64, 112, 0.07);
            --shadow-hover: 0 8px 24px rgba(30, 64, 112, 0.13);
            --shadow-lg: 0 16px 48px rgba(30, 64, 112, 0.12);
            --spacing-section: 64px;
            --spacing-card: 24px;
            --transition: all 0.25s ease;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--primary-hover);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-white {
            background-color: var(--card-bg);
        }
        .section-tight {
            padding: 40px 0;
        }
        .text-center {
            text-align: center;
        }
        .text-muted {
            color: var(--text-muted);
        }
        .text-secondary {
            color: var(--text-secondary);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .badge-secondary {
            background-color: var(--secondary-light);
            color: var(--primary-hover);
        }
        .badge-dark {
            background-color: rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            text-align: center;
            line-height: 1.5;
            text-decoration: none;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(46, 107, 166, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-outline:hover {
            background-color: rgba(46, 107, 166, 0.08);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-white {
            background-color: #fff;
            color: var(--primary);
        }
        .btn-white:hover {
            background-color: #f0f4f8;
            color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(255, 255, 255, 0.25);
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 1.05rem;
            border-radius: var(--radius-sm);
        }
        .btn-sm {
            padding: 6px 16px;
            font-size: 0.85rem;
            border-radius: 6px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 64, 112, 0.04);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 12px;
            gap: 8px;
            min-width: 200px;
            transition: var(--transition);
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            width: 100%;
            color: var(--text);
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 166, 0.15);
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .header-nav {
            border-top: 1px solid var(--border-light);
            background-color: #fff;
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            padding: 6px 0;
            scrollbar-width: thin;
            -webkit-overflow-scrolling: touch;
        }
        .nav-tabs::-webkit-scrollbar {
            height: 3px;
        }
        .nav-tabs::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-tab:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .nav-tab.active {
            background-color: var(--primary);
            color: #fff;
        }
        .nav-tab.active:hover {
            background-color: var(--primary-hover);
            color: #fff;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 12px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--border);
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .page-header {
            background: linear-gradient(135deg, #F7F9FC 0%, #EBF3FA 100%);
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--border);
        }
        .page-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 12px;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }
        .page-header .page-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 760px;
            margin: 0 0 20px;
        }
        .page-header-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .page-header-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .page-header-meta i {
            color: var(--primary);
            font-size: 0.95rem;
        }

        .trend-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin: 24px 0 0;
        }
        .trend-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 20px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .trend-item .trend-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .trend-item .trend-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0 0 28px;
            line-height: 1.65;
        }

        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .data-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .data-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .data-card .card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background-color: var(--bg-alt);
        }
        .data-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .data-card .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .data-card .card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0 0 12px;
            flex: 1;
        }
        .data-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .data-card .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 500;
        }

        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }
        .filter-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: #fff;
            border: 1px solid var(--border);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .filter-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .filter-pill.active {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            font-size: 0.9rem;
        }
        .compare-table thead th {
            background: var(--bg-alt);
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            color: var(--text);
            border-bottom: 2px solid var(--border);
            font-size: 0.85rem;
            white-space: nowrap;
        }
        .compare-table tbody td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
        }
        .compare-table tbody tr:last-child td {
            border-bottom: none;
        }
        .compare-table tbody tr:hover {
            background: #F7F9FC;
        }
        .compare-table .team-cell {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
            color: var(--text);
        }
        .table-scroll {
            overflow-x: auto;
            margin: 0 -20px;
            padding: 0 20px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-item {
            display: flex;
            gap: 16px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px;
            transition: var(--transition);
            text-decoration: none;
            align-items: center;
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .news-item .news-img {
            width: 100px;
            height: 76px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background-color: var(--bg-alt);
        }
        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
            line-height: 1.4;
        }
        .news-item .news-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 20px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow-hover);
        }
        .faq-item .faq-q {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .faq-item .faq-q i {
            color: var(--primary);
            margin-top: 3px;
            flex-shrink: 0;
        }
        .faq-item .faq-a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            padding-left: 26px;
        }

        .subscribe-box {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .subscribe-box .subscribe-info {
            flex: 1;
            min-width: 280px;
        }
        .subscribe-box .subscribe-info h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 0 0 8px;
        }
        .subscribe-box .subscribe-info p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex: 1;
            min-width: 280px;
            flex-wrap: wrap;
        }
        .subscribe-form input,
        .subscribe-form select {
            flex: 1;
            min-width: 160px;
            padding: 10px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            background: #fff;
            color: var(--text);
            transition: var(--transition);
        }
        .subscribe-form input:focus,
        .subscribe-form select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 166, 0.15);
        }

        .site-footer {
            background-color: #16233B;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 12px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom-links {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }

        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .trend-bar {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }
            .header-top {
                flex-wrap: wrap;
                gap: 12px;
            }
            .search-box {
                min-width: 140px;
                flex: 1;
            }
            .page-header h1 {
                font-size: 1.6rem;
            }
            .page-header .page-desc {
                font-size: 0.95rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .trend-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: stretch;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-bottom-links {
                margin-left: 0;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .news-item .news-img {
                width: 100%;
                height: 140px;
            }
            .news-item .news-date {
                white-space: normal;
            }
        }
        @media (max-width: 520px) {
            :root {
                --spacing-section: 36px;
            }
            .container {
                padding: 0 16px;
            }
            .page-header h1 {
                font-size: 1.35rem;
            }
            .trend-bar {
                grid-template-columns: 1fr;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input,
            .subscribe-form select {
                min-width: 100%;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .btn-sm {
                width: auto;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2E6BA6;
            --primary-hover: #275C8F;
            --primary-light: #E8F0F8;
            --secondary: #5FA8D3;
            --secondary-light: #EBF3FA;
            --bg: #F7F9FC;
            --bg-alt: #EDF2F7;
            --card-bg: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #5B6773;
            --text-muted: #8A94A1;
            --border: #E2E8F0;
            --border-light: #EEF2F7;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 4px 16px rgba(30, 64, 112, 0.07);
            --shadow-hover: 0 8px 24px rgba(30, 64, 112, 0.13);
            --shadow-lg: 0 16px 48px rgba(30, 64, 112, 0.12);
            --spacing-section: 64px;
            --spacing-card: 24px;
            --transition: all 0.25s ease;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-white {
            background-color: var(--card-bg);
        }
        .section-tight {
            padding: 40px 0;
        }

        .text-center {
            text-align: center;
        }
        .text-muted {
            color: var(--text-muted);
        }
        .text-secondary {
            color: var(--text-secondary);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .badge-secondary {
            background-color: var(--secondary-light);
            color: var(--primary-hover);
        }
        .badge-outline {
            background-color: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            text-align: center;
            line-height: 1.5;
            text-decoration: none;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(46, 107, 166, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-outline:hover {
            background-color: rgba(46, 107, 166, 0.08);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-white {
            background-color: #fff;
            color: var(--primary);
        }
        .btn-white:hover {
            background-color: #f0f4f8;
            color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(255, 255, 255, 0.25);
        }
        .btn-sm {
            padding: 6px 16px;
            font-size: 0.85rem;
            border-radius: 6px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 64, 112, 0.04);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background-color: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 12px;
            height: 40px;
            min-width: 240px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .header-search i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .header-search span {
            color: var(--text-muted);
        }
        .header-cta-group {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }
        .nav-tabs::-webkit-scrollbar {
            height: 4px;
        }
        .nav-tabs::-webkit-scrollbar-track {
            background: transparent;
        }
        .nav-tabs::-webkit-scrollbar-thumb {
            background-color: var(--border);
            border-radius: 999px;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .nav-tab:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .nav-tab.active {
            background-color: var(--primary);
            color: #fff;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.88rem;
            color: var(--text-muted);
            padding: 20px 0 0;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }

        /* Category Page Header */
        .category-header {
            padding: 36px 0 28px;
        }
        .category-header h1 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 12px;
            line-height: 1.3;
        }
        .category-header .subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.75;
            margin: 0;
        }

        /* Stats Overview Strip */
        .stats-overview {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 12px;
        }
        .stat-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* Card Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 24px;
        }
        .rank-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .rank-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .rank-card-media {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: var(--bg-alt);
        }
        .rank-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .rank-card:hover .rank-card-media img {
            transform: scale(1.04);
        }
        .rank-card-body {
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .rank-card-category {
            font-size: 0.78rem;
            color: var(--primary);
            font-weight: 500;
            margin-bottom: 6px;
        }
        .rank-card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .rank-card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0 0 12px;
            flex-grow: 1;
            line-height: 1.6;
        }
        .rank-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-muted);
            padding-top: 10px;
            border-top: 1px solid var(--border-light);
        }
        .rank-card-meta .tag {
            background-color: var(--secondary-light);
            color: var(--primary-hover);
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 500;
        }

        /* Filter Tags */
        .filter-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            background: #fff;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            user-select: none;
        }
        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .filter-tag.active {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        /* Reading List */
        .reading-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 20px;
        }
        .reading-item {
            display: flex;
            gap: 16px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px 18px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            align-items: center;
        }
        .reading-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .reading-item-media {
            width: 100px;
            height: 72px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background-color: var(--bg-alt);
        }
        .reading-item-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .reading-item-body {
            flex: 1;
            min-width: 0;
        }
        .reading-item-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
            line-height: 1.45;
        }
        .reading-item-title a {
            color: var(--text);
        }
        .reading-item-title a:hover {
            color: var(--primary);
        }
        .reading-item-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0 0 4px;
            line-height: 1.5;
        }
        .reading-item-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* Terminology */
        .term-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 20px;
        }
        .term-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 20px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .term-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .term-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 6px;
        }
        .term-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }
        .cta-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
            line-height: 1.35;
        }
        .cta-section p {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.82);
            margin: 0;
            max-width: 560px;
            line-height: 1.65;
        }
        .cta-section .btn-white {
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-list {
            margin-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .fa-chevron-down {
            transition: transform 0.3s ease;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .faq-item.open .faq-question .fa-chevron-down {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 20px 16px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* Footer */
        .site-footer {
            background-color: #16233B;
            color: rgba(255,255,255,0.75);
            padding: 48px 0 24px;
            margin-top: 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            margin: 0 0 10px;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.65);
            line-height: 1.65;
            margin: 0;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 12px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: rgba(255,255,255,0.65);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.78rem;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-bottom-links a {
            color: rgba(255,255,255,0.65);
            font-size: 0.78rem;
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-overview {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-section {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .cta-section p {
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }
            .category-header h1 {
                font-size: 1.6rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .term-grid {
                grid-template-columns: 1fr;
            }
            .reading-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .reading-item-media {
                width: 100%;
                height: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .header-search {
                min-width: auto;
                flex: 1;
                max-width: 160px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --spacing-section: 36px;
            }
            .category-header h1 {
                font-size: 1.35rem;
            }
            .stats-overview {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-item {
                padding: 14px 12px;
            }
            .stat-number {
                font-size: 1.4rem;
            }
            .header-top {
                flex-wrap: wrap;
                gap: 10px;
            }
            .header-cta-group {
                order: 3;
                width: 100%;
                justify-content: flex-end;
            }
            .cta-section {
                padding: 28px 20px;
            }
            .cta-section h2 {
                font-size: 1.2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2E6BA6;
            --primary-hover: #275C8F;
            --primary-light: #E8F0F8;
            --secondary: #5FA8D3;
            --secondary-light: #EBF3FA;
            --bg: #F7F9FC;
            --bg-alt: #EDF2F7;
            --card-bg: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #5B6773;
            --text-muted: #8A94A1;
            --border: #E2E8F0;
            --border-light: #EEF2F7;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 4px 16px rgba(30, 64, 112, 0.07);
            --shadow-hover: 0 8px 24px rgba(30, 64, 112, 0.13);
            --shadow-lg: 0 16px 48px rgba(30, 64, 112, 0.12);
            --spacing-section: 64px;
            --spacing-card: 24px;
            --transition: all 0.25s ease;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        :root {
            --spacing-section: 48px;
        }

        :root {
            --spacing-section: 36px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--primary-hover);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: var(--spacing-section) 0;
        }

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

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

        .section-tight {
            padding: 40px 0;
        }

        .text-center {
            text-align: center;
        }

        .text-muted {
            color: var(--text-muted);
        }

        .text-secondary {
            color: var(--text-secondary);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-secondary {
            background-color: var(--secondary-light);
            color: var(--primary-hover);
        }

        .badge-dark {
            background-color: rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            text-align: center;
            line-height: 1.5;
            text-decoration: none;
            font-family: var(--font);
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(46, 107, 166, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-outline:hover {
            background-color: rgba(46, 107, 166, 0.08);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }

        .btn-white {
            background-color: #fff;
            color: var(--primary);
        }

        .btn-white:hover {
            background-color: #f0f4f8;
            color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(255, 255, 255, 0.25);
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 1.05rem;
            border-radius: var(--radius-sm);
        }

        .btn-sm {
            padding: 6px 16px;
            font-size: 0.85rem;
            border-radius: 6px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 64, 112, 0.04);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 20px;
            flex-wrap: wrap;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 16px;
            color: var(--text-muted);
            font-size: 0.9rem;
            min-width: 180px;
            cursor: text;
            transition: var(--transition);
        }

        .header-search:hover {
            border-color: var(--secondary);
            background: #fff;
        }

        .header-search i {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .header-nav {
            border-top: 1px solid var(--border-light);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }

        .header-nav::-webkit-scrollbar {
            height: 4px;
        }

        .header-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 999px;
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 10px 0;
            min-width: max-content;
            flex-wrap: nowrap;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-tab:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-tab.active {
            color: #fff;
            background-color: var(--primary);
            font-weight: 600;
        }

        .nav-tab.active:hover {
            color: #fff;
            background-color: var(--primary-hover);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            padding: 0;
            list-style: none;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li + li::before {
            content: "›";
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }

        /* Page Header */
        .page-header {
            background: linear-gradient(135deg, #FFFFFF 0%, #F0F6FC 100%);
            border-bottom: 1px solid var(--border-light);
            padding: 40px 0 32px;
            position: relative;
        }

        .page-header-inner {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .page-header h1 {
            font-size: 2.1rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            margin: 0;
            letter-spacing: 0.01em;
        }

        .page-header-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 800px;
            line-height: 1.75;
            margin: 0;
        }

        .page-header-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .page-header-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Info Cards Grid */
        .info-cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 24px;
            margin-top: 8px;
        }

        .info-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .info-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--secondary);
        }

        .info-card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: var(--bg-alt);
        }

        .info-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .info-card:hover .info-card-img img {
            transform: scale(1.03);
        }

        .info-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }

        .info-card-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .info-card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            line-height: 1.4;
            margin: 0;
            color: var(--text);
        }

        .info-card-body h3 a {
            color: var(--text);
            text-decoration: none;
            transition: var(--transition);
        }

        .info-card-body h3 a:hover {
            color: var(--primary);
        }

        .info-card-excerpt {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        .info-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
            margin-top: 4px;
        }

        .info-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* Tag Group */
        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
        }

        .tag-pill {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            background: #fff;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.5;
        }

        .tag-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .tag-pill.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* Data Overview Strip */
        .data-overview-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin-top: 16px;
        }

        .data-overview-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 18px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .data-overview-item:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .data-overview-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .data-overview-label {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* Deep Reading List */
        .deep-reading-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 16px;
        }

        .deep-reading-item {
            display: flex;
            gap: 16px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px 20px;
            transition: var(--transition);
            align-items: center;
            box-shadow: 0 2px 8px rgba(30, 64, 112, 0.04);
        }

        .deep-reading-item:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
        }

        .deep-reading-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-alt);
        }

        .deep-reading-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .deep-reading-content {
            flex: 1;
            min-width: 0;
        }

        .deep-reading-content h4 {
            font-size: 1.02rem;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--text);
            line-height: 1.4;
        }

        .deep-reading-content h4 a {
            color: var(--text);
            text-decoration: none;
            transition: var(--transition);
        }

        .deep-reading-content h4 a:hover {
            color: var(--primary);
        }

        .deep-reading-content p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        .deep-reading-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: linear-gradient(135deg, #2E6BA6 0%, #275C8F 100%);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }

        .subscribe-cta-content {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-cta-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: #fff;
            line-height: 1.3;
        }

        .subscribe-cta-content p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            line-height: 1.7;
        }

        .subscribe-cta-btn {
            flex-shrink: 0;
        }

        /* FAQ Section */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 16px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: 0 2px 8px rgba(30, 64, 112, 0.04);
        }

        .faq-item:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font);
            transition: var(--transition);
            line-height: 1.5;
        }

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

        .faq-question i {
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.25s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.75;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        /* Section Headers */
        .section-header {
            margin-bottom: 20px;
        }

        .section-header h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.35;
        }

        .section-header p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
            max-width: 700px;
            line-height: 1.7;
        }

        .section-header .badge {
            margin-bottom: 8px;
        }

        /* More Link */
        .more-link-wrap {
            text-align: center;
            margin-top: 28px;
        }

        /* Footer */
        .site-footer {
            background-color: #16233B;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: 0.01em;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.4;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.88rem;
            line-height: 1.6;
        }

        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            align-items: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-bottom-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-bottom-links span {
            color: rgba(255, 255, 255, 0.35);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .info-cards-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .header-top {
                flex-direction: row;
                justify-content: space-between;
                padding: 10px 0;
            }

            .header-search {
                min-width: auto;
                padding: 6px 12px;
                font-size: 0.82rem;
            }

            .header-search span {
                display: none;
            }

            .page-header h1 {
                font-size: 1.6rem;
            }

            .page-header-desc {
                font-size: 0.95rem;
            }

            .info-cards-grid {
                grid-template-columns: 1fr;
            }

            .subscribe-cta {
                flex-direction: column;
                text-align: center;
                align-items: center;
                padding: 32px 24px;
            }

            .subscribe-cta-content h3 {
                font-size: 1.3rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .deep-reading-item {
                flex-direction: row;
                align-items: flex-start;
            }

            .deep-reading-thumb {
                width: 64px;
                height: 64px;
            }

            .deep-reading-date {
                white-space: normal;
                font-size: 0.75rem;
            }
        }

        @media (max-width: 520px) {
            :root {
                --spacing-section: 28px;
            }

            .container {
                padding: 0 16px;
            }

            .page-header {
                padding: 28px 0 24px;
            }

            .page-header h1 {
                font-size: 1.4rem;
            }

            .section-header h2 {
                font-size: 1.25rem;
            }

            .info-card-body {
                padding: 16px 18px 18px;
            }

            .info-card-body h3 {
                font-size: 1.05rem;
            }

            .data-overview-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .data-overview-number {
                font-size: 1.5rem;
            }

            .nav-tab {
                padding: 7px 14px;
                font-size: 0.85rem;
            }

            .btn {
                padding: 9px 18px;
                font-size: 0.9rem;
            }

            .btn-lg {
                padding: 12px 22px;
                font-size: 1rem;
            }

            .faq-question {
                padding: 14px 18px;
                font-size: 0.92rem;
            }

            .faq-answer {
                padding: 0 18px;
                font-size: 0.88rem;
            }

            .faq-item.open .faq-answer {
                padding: 0 18px 14px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #2E6BA6;
            --primary-hover: #275C8F;
            --primary-light: #E8F0F8;
            --secondary: #5FA8D3;
            --secondary-light: #EBF3FA;
            --bg: #F7F9FC;
            --bg-alt: #EDF2F7;
            --card-bg: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #5B6773;
            --text-muted: #8A94A1;
            --border: #E2E8F0;
            --border-light: #EEF2F7;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 4px 16px rgba(30, 64, 112, 0.07);
            --shadow-hover: 0 8px 24px rgba(30, 64, 112, 0.13);
            --shadow-lg: 0 16px 48px rgba(30, 64, 112, 0.12);
            --spacing-section: 64px;
            --spacing-card: 24px;
            --transition: all 0.25s ease;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        @media (max-width: 992px) {
            :root {
                --spacing-section: 48px;
            }
        }
        @media (max-width: 576px) {
            :root {
                --spacing-section: 36px;
            }
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-white {
            background-color: var(--card-bg);
        }
        .section-tight {
            padding: 40px 0;
        }
        .text-center {
            text-align: center;
        }
        .text-muted {
            color: var(--text-muted);
        }
        .text-secondary {
            color: var(--text-secondary);
        }
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
            white-space: nowrap;
        }
        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .badge-secondary {
            background-color: var(--secondary-light);
            color: var(--primary-hover);
        }
        .badge-dark {
            background-color: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            text-align: center;
            line-height: 1.5;
            text-decoration: none;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(46, 107, 166, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-outline:hover {
            background-color: rgba(46, 107, 166, 0.08);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-white {
            background-color: #fff;
            color: var(--primary);
        }
        .btn-white:hover {
            background-color: #f0f4f8;
            color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(255, 255, 255, 0.25);
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 1.05rem;
            border-radius: var(--radius-sm);
        }
        .btn-sm {
            padding: 6px 16px;
            font-size: 0.85rem;
            border-radius: 6px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 64, 112, 0.04);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 12px;
            gap: 8px;
            max-width: 220px;
            width: 100%;
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            padding: 4px 0;
            font-size: 0.9rem;
            color: var(--text);
            width: 100%;
            font-family: var(--font);
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .header-cta {
            white-space: nowrap;
        }
        .header-nav {
            border-top: 1px solid var(--border-light);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }
        .header-nav::-webkit-scrollbar {
            height: 4px;
        }
        .header-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 2px;
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            min-width: max-content;
            padding: 8px 0;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-tab:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .nav-tab.active {
            background-color: var(--primary);
            color: #fff;
        }
        .nav-tab.active:hover {
            background-color: var(--primary-hover);
            color: #fff;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* Page Header */
        .page-header {
            background: linear-gradient(180deg, #FFFFFF 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border-light);
            padding: 40px 0 32px;
        }
        .page-header h1 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 12px;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }
        .page-header .header-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 760px;
            margin: 0;
            line-height: 1.8;
        }

        /* Section Titles */
        .section-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0 0 28px;
            max-width: 700px;
            line-height: 1.7;
        }

        /* Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 992px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }
        .topic-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .topic-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: var(--bg-alt);
        }
        .topic-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .topic-card:hover .card-img img {
            transform: scale(1.04);
        }
        .topic-card .card-body {
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .topic-card .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .topic-card .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.5;
            text-decoration: none;
            display: block;
        }
        .topic-card .card-title:hover {
            color: var(--primary);
        }
        .topic-card .card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0 0 14px;
            line-height: 1.7;
            flex: 1;
        }
        .topic-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }
        .topic-card .card-meta i {
            font-size: 0.75rem;
        }

        /* Hot Discussion List */
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 14px 20px;
            transition: var(--transition);
        }
        .hot-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .hot-item .hot-rank {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
            background: var(--bg-alt);
            color: var(--text-secondary);
        }
        .hot-item .hot-rank.top {
            background: var(--primary);
            color: #fff;
        }
        .hot-item .hot-info {
            flex: 1;
            min-width: 0;
        }
        .hot-item .hot-title {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            margin: 0 0 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .hot-item .hot-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
        }
        .hot-item .hot-heat {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 500;
            white-space: nowrap;
        }

        /* Stats Bar */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 992px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 576px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }
        .stat-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-item .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* Full-width CTA */
        .cta-banner {
            background: linear-gradient(135deg, #2E6BA6 0%, #1B4F7F 100%);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            color: #fff;
        }
        .cta-banner .cta-text h3 {
            color: #fff;
            font-size: 1.4rem;
            font-weight: 600;
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .cta-banner .cta-text p {
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            font-size: 0.95rem;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .cta-banner {
                padding: 28px 24px;
                flex-direction: column;
                text-align: center;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: var(--transition);
            border-left: 3px solid var(--primary);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-item .faq-q {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.5;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .faq-item .faq-q i {
            color: var(--primary);
            font-size: 0.95rem;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .faq-item .faq-a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0 0 0 26px;
            line-height: 1.8;
        }

        /* Subscribe Form */
        .subscribe-form-wrap {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 40px;
            max-width: 640px;
            margin: 0 auto;
        }
        .subscribe-form-wrap .form-title {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            text-align: center;
        }
        .subscribe-form-wrap .form-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0 0 24px;
            text-align: center;
        }
        .subscribe-form .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .subscribe-form .form-field {
            flex: 1;
            min-width: 200px;
        }
        .subscribe-form label {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            display: block;
            margin-bottom: 6px;
        }
        .subscribe-form input,
        .subscribe-form select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid #CBD5E1;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            color: var(--text);
            font-family: var(--font);
            background: #fff;
            transition: var(--transition);
        }
        .subscribe-form input:focus,
        .subscribe-form select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 166, 0.15);
            outline: none;
        }
        .subscribe-form .form-submit {
            display: flex;
            align-items: flex-end;
        }
        @media (max-width: 768px) {
            .subscribe-form-wrap {
                padding: 24px 20px;
            }
            .subscribe-form .form-row {
                flex-direction: column;
                gap: 14px;
            }
            .subscribe-form .form-submit {
                width: 100%;
            }
            .subscribe-form .form-submit .btn {
                width: 100%;
            }
        }

        /* Footer */
        .site-footer {
            background-color: #16233B;
            color: #CBD5E1;
            padding: 56px 0 0;
            margin-top: 48px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 10px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: #9AA6B8;
            margin: 0;
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #9AA6B8;
            font-size: 0.9rem;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            padding: 20px 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            font-size: 0.8rem;
            color: #8A94A1;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: auto;
        }
        .footer-bottom-links a {
            color: #BDCBDA;
            font-size: 0.8rem;
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom-links {
                margin-left: 0;
            }
        }

        /* View more */
        .view-more {
            display: flex;
            justify-content: center;
            margin-top: 24px;
        }