/* roulang page: index */
:root {
            --primary-dark: #2C3E5A;
            --primary-darker: #1E2A3D;
            --primary-light: #3E5270;
            --accent-green: #1F8A5B;
            --accent-green-dark: #18724B;
            --accent-green-light: #EAF5EF;
            --accent-gold: #C49A3C;
            --accent-gold-light: #FBF6EB;
            --bg-light: #F5F7FA;
            --bg-white: #FFFFFF;
            --text-body: #2B2F36;
            --text-secondary: #6A7280;
            --border-color: #D9DEE5;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(44,62,90,0.05);
            --shadow-md: 0 4px 14px rgba(44,62,90,0.06);
            --shadow-lg: 0 8px 22px rgba(44,62,90,0.14);
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-padding: 72px 0;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--accent-green-dark);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
            font-size: 15px;
        }

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

        section {
            padding: var(--section-padding);
        }

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

        .section-dark {
            background-color: var(--primary-dark);
            color: #E8EDF3;
        }

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

        .section-dark .section-subtitle {
            color: #B8C2D0;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 720px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            background: var(--accent-green-light);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .section-tag.tag-gold {
            color: #8B6D2B;
            background: var(--accent-gold-light);
        }

        .section-tag.tag-dark {
            color: #E8EDF3;
            background: rgba(255,255,255,0.12);
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
            text-align: center;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background-color: var(--accent-green);
            color: #FFFFFF;
            border-color: var(--accent-green);
        }

        .btn-primary:hover {
            background-color: var(--accent-green-dark);
            border-color: var(--accent-green-dark);
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(31,138,91,0.3);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--accent-green);
            border-color: var(--accent-green);
        }

        .btn-secondary:hover {
            background-color: var(--accent-green-light);
            color: var(--accent-green-dark);
            border-color: var(--accent-green);
        }

        .btn-white-outline {
            background-color: transparent;
            color: #FFFFFF;
            border-color: rgba(255,255,255,0.6);
        }

        .btn-white-outline:hover {
            background-color: rgba(255,255,255,0.15);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 3px 10px;
            letter-spacing: 0.3px;
        }

        .badge-green {
            background-color: var(--accent-green);
            color: #FFFFFF;
        }

        .badge-gold {
            background-color: var(--accent-gold);
            color: #2B2F36;
        }

        .badge-gray {
            background-color: #E4E9EE;
            color: var(--text-secondary);
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            background-color: var(--primary-dark);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0,0,0,0.12);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            max-width: 1200px;
            margin: 0 auto;
            min-height: 64px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--accent-green);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .logo-text a {
            color: #FFFFFF;
            text-decoration: none;
        }

        .logo-text a:hover {
            color: #E8EDF3;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
            margin: 0 12px;
        }

        .main-nav a {
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: #E8EDF3;
            text-decoration: none;
            border-bottom: 3px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .main-nav a:hover {
            color: #FFFFFF;
            background-color: rgba(255,255,255,0.08);
            border-bottom-color: rgba(255,255,255,0.3);
        }

        .main-nav a.active {
            color: #FFFFFF;
            border-bottom-color: var(--accent-green);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-actions a {
            display: inline-block;
            padding: 7px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary-dark);
            background-color: #FFFFFF;
            border-radius: 6px;
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-actions a:hover {
            background-color: #E8EDF3;
            color: var(--primary-dark);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #FFFFFF;
            font-size: 22px;
            cursor: pointer;
            padding: 8px 4px;
            flex-shrink: 0;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            background-image: url('/assets/images/ff8c01d8ce65e8c4.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            min-height: 520px;
            display: flex;
            align-items: center;
            color: #FFFFFF;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(44,62,90,0.92) 0%, rgba(44,62,90,0.78) 50%, rgba(30,42,61,0.65) 100%);
            z-index: 1;
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

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

        .hero-text .hero-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-gold-light);
            background: rgba(196,154,60,0.2);
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            border: 1px solid rgba(196,154,60,0.4);
        }

        .hero-text h1 {
            font-size: 32px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
            line-height: 1.4;
            letter-spacing: 0.5px;
        }

        .hero-text .hero-pain {
            font-size: 16px;
            color: #FFD5C2;
            font-weight: 600;
            margin-bottom: 14px;
            line-height: 1.7;
        }

        .hero-text .hero-sub {
            font-size: 15px;
            color: #D5DCE6;
            line-height: 1.9;
            margin-bottom: 24px;
            max-width: 520px;
        }

        .hero-buttons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .hero-stats-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            padding-top: 16px;
            border-top: 1px solid rgba(255,255,255,0.2);
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-value {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
        }

        .hero-stat-label {
            font-size: 12px;
            color: #B8C2D0;
        }

        .hero-demo {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.18);
            border-radius: var(--radius-lg);
            padding: 24px;
            backdrop-filter: blur(8px);
        }

        .hero-demo-title {
            font-size: 14px;
            color: #B8C2D0;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
        }

        .hero-demo-title .dot {
            width: 8px;
            height: 8px;
            background-color: var(--accent-green);
            border-radius: 50%;
            animation: pulse-dot 1.6s ease infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(1.4); }
        }

        .demo-match-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,255,255,0.12);
        }

        .demo-match-row:last-child {
            border-bottom: none;
        }

        .demo-team {
            font-size: 13px;
            color: #E8EDF3;
            font-weight: 500;
        }

        .demo-score {
            font-size: 14px;
            font-weight: 700;
            color: #FFFFFF;
            white-space: nowrap;
        }

        .demo-index {
            font-size: 12px;
            color: var(--accent-gold);
            white-space: nowrap;
        }

        .demo-footer {
            margin-top: 14px;
            font-size: 12px;
            color: #9AA7B7;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* ===== Metric Board ===== */
        .metric-board .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
            transform: translateY(-2px);
        }

        .metric-card .metric-value {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

        .metric-card .metric-value .unit {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0;
        }

        .metric-card .metric-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }

        .metric-card .metric-trend {
            font-size: 12px;
            color: var(--accent-green);
            margin-top: 8px;
            font-weight: 600;
        }

        /* ===== Service Matrix ===== */
        .service-matrix .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
            transform: translateY(-3px);
        }

        .service-card .service-icon {
            width: 44px;
            height: 44px;
            background-color: var(--accent-green-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 18px;
            margin-bottom: 4px;
        }

        .service-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary-dark);
            line-height: 1.5;
        }

        .service-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== Comparison ===== */
        .comparison-section .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .comparison-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-md);
        }

        .comparison-card.highlight {
            border: 2px solid var(--accent-green);
            position: relative;
        }

        .comparison-card.highlight::before {
            content: '推荐';
            position: absolute;
            top: -12px;
            right: 20px;
            background-color: var(--accent-green);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 999px;
            letter-spacing: 0.5px;
        }

        .comparison-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
        }

        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .comparison-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
            color: var(--text-body);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-list li i {
            color: var(--accent-green);
            font-size: 14px;
            margin-top: 3px;
        }

        .comparison-card:not(.highlight) .comparison-list li i {
            color: var(--text-secondary);
        }

        /* ===== Milestone ===== */
        .milestone-section {
            background-color: var(--primary-dark);
            color: #E8EDF3;
            padding: var(--section-padding);
        }

        .milestone-section .section-title {
            color: #FFFFFF;
        }

        .milestone-section .section-subtitle {
            color: #B8C2D0;
        }

        .timeline {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 12px;
            margin-top: 32px;
        }

        .timeline-item {
            text-align: center;
            position: relative;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            top: 22px;
            left: 0;
            right: 0;
            height: 3px;
            background-color: rgba(255,255,255,0.18);
        }

        .timeline-item:first-child::before {
            left: 50%;
        }

        .timeline-item:last-child::before {
            right: 50%;
        }

        .timeline-dot {
            width: 14px;
            height: 14px;
            background-color: var(--accent-green);
            border-radius: 50%;
            margin: 0 auto 12px;
            position: relative;
            z-index: 2;
            border: 3px solid rgba(31,138,91,0.3);
            box-shadow: 0 0 0 4px rgba(31,138,91,0.15);
        }

        .timeline-year {
            font-size: 16px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 6px;
        }

        .timeline-desc {
            font-size: 12px;
            color: #B8C2D0;
            line-height: 1.6;
            padding: 0 4px;
        }

        /* ===== Brand Intro ===== */
        .brand-intro-section .brand-wrapper {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-section .brand-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .brand-intro-section .brand-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .brand-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
            line-height: 1.5;
        }

        .brand-text p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: 12px;
        }

        /* ===== Sports Coverage ===== */
        .sports-coverage-section {
            background-color: var(--bg-light);
        }

        .coverage-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            margin-top: 8px;
        }

        .coverage-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 14px;
            text-align: center;
            transition: var(--transition);
        }

        .coverage-item:hover {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .coverage-item i {
            font-size: 24px;
            color: var(--accent-green);
            margin-bottom: 8px;
            display: block;
        }

        .coverage-item .coverage-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }

        .coverage-item .coverage-count {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ===== Data Service Detail ===== */
        .data-detail-section .detail-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .detail-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .detail-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .detail-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }

        .detail-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
            color: var(--text-body);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .detail-list li:last-child {
            border-bottom: none;
        }

        .detail-list li i {
            color: var(--accent-green);
            font-size: 14px;
            margin-top: 4px;
        }

        /* ===== News List ===== */
        .news-section {
            background-color: var(--bg-light);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

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

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
            transform: translateY(-3px);
        }

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

        .news-card .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .news-card .news-tag {
            font-size: 11px;
            font-weight: 600;
            color: var(--accent-green);
            background: var(--accent-green-light);
            padding: 2px 8px;
            border-radius: 4px;
            margin-bottom: 6px;
            display: inline-block;
        }

        .news-card h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary-dark);
            line-height: 1.6;
            margin-bottom: 6px;
        }

        .news-card .news-meta {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .news-more {
            text-align: center;
            margin-top: 24px;
        }

        /* ===== Platform Guarantee ===== */
        .guarantee-section {
            background-color: var(--primary-dark);
            color: #E8EDF3;
        }

        .guarantee-section .section-title {
            color: #FFFFFF;
        }

        .guarantee-section .section-subtitle {
            color: #B8C2D0;
        }

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

        .guarantee-item {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            text-align: center;
            transition: var(--transition);
        }

        .guarantee-item:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.25);
        }

        .guarantee-item i {
            font-size: 26px;
            color: var(--accent-green);
            margin-bottom: 10px;
        }

        .guarantee-item h3 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 6px;
        }

        .guarantee-item p {
            font-size: 12px;
            color: #B8C2D0;
            line-height: 1.7;
        }

        /* ===== Industry Insight ===== */
        .insight-section .insight-wrapper {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 32px;
            align-items: center;
        }

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

        .insight-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
            transition: var(--transition);
        }

        .insight-item:hover {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-md);
        }

        .insight-item .insight-num {
            width: 28px;
            height: 28px;
            background-color: var(--accent-green-light);
            color: var(--accent-green);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .insight-item h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }

        .insight-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Quick Answers ===== */
        .quick-section {
            background-color: var(--bg-light);
        }

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

        .quick-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
            transition: var(--transition);
        }

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

        .quick-card i {
            color: var(--accent-gold);
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .quick-card .quick-text h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }

        .quick-card .quick-text p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Resource Download ===== */
        .resource-section .resource-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .resource-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            transition: var(--transition);
        }

        .resource-card:hover {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .resource-card i {
            font-size: 22px;
            color: var(--accent-green);
            margin-bottom: 8px;
        }

        .resource-card h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }

        .resource-card p {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background-color: var(--bg-light);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            padding: 18px 20px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            line-height: 1.6;
        }

        .faq-question i {
            color: var(--text-secondary);
            transition: transform 0.3s ease;
            font-size: 12px;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.9;
            padding: 0 20px;
        }

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

        /* ===== Conversion Form ===== */
        .conversion-section {
            background-color: var(--primary-dark);
            color: #E8EDF3;
        }

        .conversion-section .section-title {
            color: #FFFFFF;
        }

        .conversion-section .section-subtitle {
            color: #B8C2D0;
        }

        .conversion-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .conversion-info h3 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .conversion-info p {
            font-size: 14px;
            color: #B8C2D0;
            line-height: 1.9;
            margin-bottom: 10px;
        }

        .conversion-info .cv-points {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }

        .conversion-info .cv-points li {
            padding: 8px 0;
            font-size: 13px;
            color: #D5DCE6;
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }

        .conversion-info .cv-points li i {
            color: var(--accent-green);
            font-size: 13px;
            margin-top: 4px;
        }

        .conversion-form {
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.18);
            border-radius: var(--radius-lg);
            padding: 28px;
        }

        .conversion-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            margin-bottom: 14px;
        }

        .conversion-form label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: #D5DCE6;
            margin-bottom: 6px;
        }

        .conversion-form input,
        .conversion-form select,
        .conversion-form textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid rgba(255,255,255,0.25);
            border-radius: 6px;
            background: rgba(255,255,255,0.1);
            color: #FFFFFF;
            font-size: 14px;
            transition: var(--transition);
        }

        .conversion-form input:focus,
        .conversion-form select:focus,
        .conversion-form textarea:focus {
            outline: none;
            border-color: var(--accent-green);
            box-shadow: 0 0 0 2px rgba(31,138,91,0.3);
        }

        .conversion-form input::placeholder,
        .conversion-form textarea::placeholder {
            color: #9AA7B7;
        }

        .conversion-form select option {
            color: var(--text-body);
            background: #FFFFFF;
        }

        .conversion-form .form-submit {
            width: 100%;
            padding: 12px 20px;
            background-color: var(--accent-green);
            color: #FFFFFF;
            border: none;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.5px;
        }

        .conversion-form .form-submit:hover {
            background-color: var(--accent-green-dark);
            box-shadow: 0 6px 18px rgba(31,138,91,0.35);
        }

        /* ===== Footer ===== */
        .site-footer {
            background-color: var(--primary-darker);
            color: #B8C2D0;
            padding: 48px 0 28px;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 1px;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: #9AA7B7;
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

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

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

        .footer-col ul li a {
            font-size: 13px;
            color: #B8C2D0;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: #7A8899;
            line-height: 1.8;
        }

        .footer-bottom a {
            color: #B8C2D0;
            text-decoration: none;
        }

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

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            justify-content: center;
            margin-top: 6px;
            flex-wrap: wrap;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 0;
                margin: 0 8px;
            }
            .main-nav a {
                padding: 10px 10px;
                font-size: 13px;
            }
            .nav-actions a {
                padding: 6px 12px;
                font-size: 12px;
            }
            .hero-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .timeline-item::before {
                display: none;
            }
            .coverage-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
            .insight-wrapper,
            .data-detail-section .detail-grid,
            .brand-intro-section .brand-wrapper,
            .conversion-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header .header-inner {
                flex-wrap: wrap;
                min-height: 56px;
                padding: 8px 16px;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background-color: var(--primary-darker);
                border-radius: 8px;
                margin-top: 8px;
                padding: 8px 0;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                border-bottom: none;
                border-left: 3px solid transparent;
            }
            .main-nav a.active {
                border-left-color: var(--accent-green);
                border-bottom: none;
            }
            .main-nav a:hover {
                border-left-color: rgba(255,255,255,0.3);
                border-bottom: none;
            }
            .nav-actions {
                margin-left: auto;
            }
            .hero-section {
                padding: 56px 0;
                min-height: auto;
            }
            .hero-text h1 {
                font-size: 24px;
            }
            .hero-text .hero-pain {
                font-size: 14px;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-card {
                padding: 16px 12px;
            }
            .metric-card .metric-value {
                font-size: 24px;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .quick-grid {
                grid-template-columns: 1fr;
            }
            .resource-grid {
                grid-template-columns: 1fr;
            }
            .timeline {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .timeline-item {
                text-align: left;
                display: flex;
                gap: 12px;
                align-items: flex-start;
            }
            .timeline-dot {
                margin: 4px 0 0;
                flex-shrink: 0;
            }
            .coverage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: 20px;
            }
            .section-subtitle {
                font-size: 13px;
            }
            .conversion-form .form-row {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer {
                padding: 32px 16px 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }
            .hero-buttons .btn {
                width: 100%;
            }
            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .coverage-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .hero-demo {
                padding: 16px;
            }
            .comparison-card {
                padding: 18px;
            }
            .section-title {
                font-size: 18px;
            }
            .brand-intro-section .brand-image img {
                height: 200px;
            }
            .detail-image img {
                height: 180px;
            }
        }

/* roulang page: category1 */
:root {
        --primary-dark: #2C3E5A;
        --primary-darker: #1E2A3D;
        --primary-light: #3E5270;
        --accent-green: #1F8A5B;
        --accent-green-dark: #18724B;
        --accent-green-light: #EAF5EF;
        --accent-gold: #C49A3C;
        --accent-gold-light: #FBF6EB;
        --bg-light: #F5F7FA;
        --bg-white: #FFFFFF;
        --text-body: #2B2F36;
        --text-secondary: #6A7280;
        --border-color: #D9DEE5;
        --radius-sm: 6px;
        --radius-md: 10px;
        --radius-lg: 16px;
        --shadow-sm: 0 2px 6px rgba(44,62,90,0.05);
        --shadow-md: 0 4px 14px rgba(44,62,90,0.06);
        --shadow-lg: 0 8px 22px rgba(44,62,90,0.14);
        --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        --section-padding: 72px 0;
        --transition: all 0.25s ease;
    }
    html {
        scroll-behavior: smooth;
    }
    * {
        box-sizing: border-box;
    }
    body {
        font-family: var(--font-stack);
        font-size: 15px;
        line-height: 1.8;
        color: var(--text-body);
        background-color: var(--bg-white);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        margin: 0;
        padding: 0;
    }
    a {
        color: var(--accent-green);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--accent-green-dark);
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
        object-fit: cover;
    }
    button,
    input,
    textarea,
    select {
        font-family: var(--font-stack);
        font-size: 15px;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    section {
        padding: var(--section-padding);
    }
    .section-alt {
        background-color: var(--bg-light);
    }
    .section-dark {
        background-color: var(--primary-dark);
        color: #E8EDF3;
    }
    .section-dark .section-title {
        color: #FFFFFF;
    }
    .section-dark .section-subtitle {
        color: #B8C2D0;
    }
    .section-title {
        font-size: 26px;
        font-weight: 700;
        color: var(--primary-dark);
        margin-bottom: 12px;
        line-height: 1.4;
    }
    .section-subtitle {
        font-size: 15px;
        color: var(--text-secondary);
        margin-bottom: 32px;
        line-height: 1.8;
        max-width: 720px;
    }
    .section-tag {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        color: var(--accent-green);
        background: var(--accent-green-light);
        padding: 4px 12px;
        border-radius: var(--radius-sm);
        margin-bottom: 10px;
        letter-spacing: 0.5px;
    }
    .section-tag.tag-gold {
        color: #8B6D2B;
        background: var(--accent-gold-light);
    }
    .section-tag.tag-dark {
        color: #E8EDF3;
        background: rgba(255,255,255,0.12);
    }
    .btn {
        display: inline-block;
        padding: 10px 22px;
        border-radius: 8px;
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        border: 2px solid transparent;
        transition: var(--transition);
        text-align: center;
        letter-spacing: 0.3px;
        line-height: 1.6;
    }
    .btn-primary {
        background-color: var(--accent-green);
        color: #FFFFFF;
        border-color: var(--accent-green);
    }
    .btn-primary:hover {
        background-color: var(--accent-green-dark);
        border-color: var(--accent-green-dark);
        color: #FFFFFF;
        box-shadow: 0 4px 12px rgba(31,138,91,0.3);
    }
    .btn-secondary {
        background-color: transparent;
        color: var(--accent-green);
        border-color: var(--accent-green);
    }
    .btn-secondary:hover {
        background-color: var(--accent-green-light);
        color: var(--accent-green-dark);
        border-color: var(--accent-green);
    }
    .btn-white-outline {
        background-color: transparent;
        color: #FFFFFF;
        border-color: rgba(255,255,255,0.6);
    }
    .btn-white-outline:hover {
        background-color: rgba(255,255,255,0.15);
        border-color: #FFFFFF;
        color: #FFFFFF;
    }
    .btn:focus-visible {
        outline: 2px solid var(--accent-green);
        outline-offset: 2px;
    }
    .badge {
        display: inline-block;
        font-size: 12px;
        font-weight: 600;
        border-radius: var(--radius-sm);
        padding: 3px 10px;
        letter-spacing: 0.3px;
        line-height: 1.5;
    }
    .badge-green {
        background-color: var(--accent-green);
        color: #FFFFFF;
    }
    .badge-gold {
        background-color: var(--accent-gold);
        color: #2B2F36;
    }
    .badge-gray {
        background-color: #E4E9EE;
        color: var(--text-secondary);
    }
    /* ===== Header / Navigation ===== */
    .site-header {
        background-color: var(--primary-dark);
        position: sticky;
        top: 0;
        z-index: 100;
        box-shadow: 0 2px 12px rgba(0,0,0,0.12);
    }
    .site-header .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 20px;
        max-width: 1200px;
        margin: 0 auto;
        min-height: 64px;
        gap: 16px;
    }
    .logo-area {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-shrink: 0;
    }
    .logo-icon {
        width: 36px;
        height: 36px;
        background-color: var(--accent-green);
        color: #FFFFFF;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 18px;
        border-radius: 8px;
        letter-spacing: 0;
    }
    .logo-text a {
        font-size: 20px;
        font-weight: 700;
        color: #FFFFFF;
        letter-spacing: 1.5px;
    }
    .logo-text a:hover {
        color: #E8EDF3;
    }
    .nav-toggle {
        display: none;
        background: none;
        border: none;
        color: #E8EDF3;
        font-size: 22px;
        cursor: pointer;
        padding: 8px 4px;
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 26px;
        flex: 1;
        justify-content: center;
    }
    .main-nav a {
        color: #E8EDF3;
        font-size: 14px;
        font-weight: 500;
        padding: 8px 0;
        position: relative;
        white-space: nowrap;
        letter-spacing: 0.3px;
        transition: var(--transition);
    }
    .main-nav a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 3px;
        background-color: var(--accent-green);
        transition: var(--transition);
        border-radius: 2px;
    }
    .main-nav a:hover::after,
    .main-nav a.active::after {
        width: 100%;
    }
    .main-nav a:hover {
        color: #FFFFFF;
    }
    .main-nav a.active {
        color: #FFFFFF;
        font-weight: 600;
    }
    .nav-actions {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .nav-actions a {
        color: #E8EDF3;
        font-size: 13px;
        font-weight: 500;
        padding: 7px 14px;
        border-radius: 6px;
        border: 1px solid rgba(255,255,255,0.3);
        transition: var(--transition);
        white-space: nowrap;
    }
    .nav-actions a:hover {
        background-color: rgba(255,255,255,0.12);
        border-color: rgba(255,255,255,0.5);
        color: #FFFFFF;
    }
    /* ===== Page Hero (分类页专用) ===== */
    .page-hero {
        background-color: var(--primary-dark);
        padding: 56px 0 48px;
        position: relative;
        overflow: hidden;
    }
    .page-hero::before {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        width: 45%;
        height: 100%;
        background: linear-gradient(135deg, rgba(31,138,91,0.12) 0%, rgba(196,154,60,0.08) 100%);
        pointer-events: none;
    }
    .page-hero .container {
        position: relative;
        z-index: 1;
    }
    .page-hero h1 {
        font-size: 32px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: 14px;
        line-height: 1.4;
        letter-spacing: 0.3px;
    }
    .page-hero .hero-desc {
        font-size: 16px;
        color: #B8C2D0;
        max-width: 780px;
        line-height: 1.9;
        margin-bottom: 20px;
    }
    .page-hero .hero-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        align-items: center;
    }
    .page-hero .hero-meta span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        color: #9FAABA;
    }
    .page-hero .hero-meta i {
        color: var(--accent-green);
        font-size: 14px;
    }
    .breadcrumb {
        font-size: 13px;
        color: #9FAABA;
        margin-bottom: 16px;
        letter-spacing: 0.3px;
    }
    .breadcrumb a {
        color: #B8C2D0;
    }
    .breadcrumb a:hover {
        color: #FFFFFF;
    }
    /* ===== 栏目说明区 ===== */
    .column-intro {
        background-color: var(--bg-white);
        padding: 48px 0;
    }
    .column-intro-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 48px;
        align-items: start;
    }
    .column-intro-main h2 {
        font-size: 22px;
        font-weight: 700;
        color: var(--primary-dark);
        margin-bottom: 16px;
        line-height: 1.5;
    }
    .column-intro-main p {
        font-size: 15px;
        color: var(--text-body);
        line-height: 1.9;
        margin-bottom: 16px;
    }
    .column-intro-main .intro-points {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 12px;
        margin-top: 20px;
    }
    .intro-point-item {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--text-secondary);
        background: var(--bg-light);
        padding: 10px 14px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-color);
    }
    .intro-point-item i {
        color: var(--accent-green);
        font-size: 15px;
        flex-shrink: 0;
    }
    .column-intro-side {
        background: var(--bg-light);
        border-radius: var(--radius-md);
        padding: 24px;
        border: 1px solid var(--border-color);
    }
    .column-intro-side h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--primary-dark);
        margin-bottom: 14px;
    }
    .column-intro-side ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .column-intro-side li {
        font-size: 14px;
        color: var(--text-secondary);
        padding: 8px 0;
        border-bottom: 1px solid var(--border-color);
        display: flex;
        align-items: center;
        gap: 8px;
        line-height: 1.6;
    }
    .column-intro-side li:last-child {
        border-bottom: none;
    }
    .column-intro-side li i {
        color: var(--accent-gold);
        font-size: 13px;
        flex-shrink: 0;
    }
    /* ===== 文章卡片列表（主体） ===== */
    .article-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .article-card {
        background: var(--bg-white);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: var(--shadow-md);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }
    .article-card:hover {
        box-shadow: var(--shadow-lg);
        border-color: var(--accent-green);
        transform: translateY(-2px);
    }
    .article-card-image {
        height: 200px;
        overflow: hidden;
        background-color: #E4E9EE;
        position: relative;
    }
    .article-card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: var(--transition);
    }
    .article-card:hover .article-card-image img {
        transform: scale(1.04);
    }
    .article-card-image .article-badge {
        position: absolute;
        top: 12px;
        left: 12px;
        z-index: 1;
    }
    .article-card-body {
        padding: 20px 22px 22px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .article-card-body h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--primary-dark);
        margin-bottom: 10px;
        line-height: 1.5;
        min-height: 50px;
    }
    .article-card-body p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.8;
        margin-bottom: 14px;
        flex: 1;
    }
    .article-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 13px;
        color: var(--text-secondary);
        padding-top: 12px;
        border-top: 1px solid var(--border-color);
    }
    .article-meta i {
        color: var(--accent-green);
        font-size: 13px;
    }
    .article-meta span {
        display: inline-flex;
        align-items: center;
        gap: 5px;
    }
    /* ===== 热点话题推荐 ===== */
    .topic-strip {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        justify-content: center;
        margin-top: 8px;
    }
    .topic-pill {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 18px;
        border-radius: 50px;
        font-size: 14px;
        font-weight: 500;
        background: var(--bg-white);
        border: 1px solid var(--border-color);
        color: var(--text-body);
        transition: var(--transition);
        cursor: pointer;
    }
    .topic-pill:hover {
        border-color: var(--accent-green);
        background: var(--accent-green-light);
        color: var(--accent-green-dark);
        box-shadow: var(--shadow-sm);
    }
    .topic-pill i {
        color: var(--accent-gold);
        font-size: 13px;
    }
    /* ===== 专家观点 ===== */
    .expert-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .expert-card {
        background: var(--bg-white);
        border-radius: var(--radius-md);
        padding: 28px 24px;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
    }
    .expert-card:hover {
        box-shadow: var(--shadow-md);
        border-color: var(--accent-green);
    }
    .expert-quote {
        font-size: 15px;
        color: var(--text-body);
        line-height: 1.9;
        margin-bottom: 18px;
        position: relative;
        padding-left: 18px;
        border-left: 3px solid var(--accent-gold);
    }
    .expert-info {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .expert-avatar {
        width: 42px;
        height: 42px;
        border-radius: 50%;
        background: var(--primary-dark);
        color: #FFFFFF;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 600;
        font-size: 16px;
        flex-shrink: 0;
    }
    .expert-name {
        font-size: 14px;
        font-weight: 600;
        color: var(--primary-dark);
    }
    .expert-role {
        font-size: 13px;
        color: var(--text-secondary);
    }
    /* ===== 数据引用 ===== */
    .data-reference-grid {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: 32px;
        align-items: start;
    }
    .data-ref-main {
        background: var(--bg-white);
        border-radius: var(--radius-md);
        padding: 28px;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-sm);
    }
    .data-ref-main h3 {
        font-size: 18px;
        font-weight: 600;
        color: var(--primary-dark);
        margin-bottom: 16px;
    }
    .data-ref-main p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.9;
        margin-bottom: 14px;
    }
    .data-ref-table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 12px;
    }
    .data-ref-table th {
        background: var(--primary-dark);
        color: #FFFFFF;
        font-size: 13px;
        font-weight: 600;
        padding: 10px 14px;
        text-align: left;
        letter-spacing: 0.3px;
    }
    .data-ref-table td {
        font-size: 13px;
        color: var(--text-body);
        padding: 10px 14px;
        border-bottom: 1px solid var(--border-color);
    }
    .data-ref-table tr:nth-child(even) td {
        background: var(--bg-light);
    }
    .data-ref-side {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    .data-ref-stat {
        background: var(--primary-dark);
        border-radius: var(--radius-md);
        padding: 22px;
        color: #E8EDF3;
        text-align: center;
    }
    .data-ref-stat .stat-number {
        font-size: 32px;
        font-weight: 700;
        color: var(--accent-green);
        display: block;
        margin-bottom: 4px;
    }
    .data-ref-stat .stat-label {
        font-size: 13px;
        color: #B8C2D0;
    }
    .data-ref-stat.gold-bg {
        background: var(--accent-gold-light);
        color: var(--text-body);
        border: 1px solid var(--accent-gold);
    }
    .data-ref-stat.gold-bg .stat-number {
        color: #8B6D2B;
    }
    .data-ref-stat.gold-bg .stat-label {
        color: var(--text-secondary);
    }
    /* ===== 转化 CTA ===== */
    .cta-section {
        background: var(--primary-dark);
        padding: 56px 0;
        position: relative;
        overflow: hidden;
    }
    .cta-section::after {
        content: '';
        position: absolute;
        bottom: -60px;
        right: -60px;
        width: 200px;
        height: 200px;
        background: radial-gradient(circle, rgba(31,138,91,0.18) 0%, transparent 70%);
        pointer-events: none;
    }
    .cta-content {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 32px;
        position: relative;
        z-index: 1;
        flex-wrap: wrap;
    }
    .cta-content h2 {
        font-size: 24px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: 8px;
    }
    .cta-content p {
        font-size: 15px;
        color: #B8C2D0;
        margin: 0;
        line-height: 1.8;
    }
    .cta-buttons {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
        flex-shrink: 0;
    }
    /* ===== Footer ===== */
    .site-footer {
        background-color: var(--primary-darker);
        color: #B8C2D0;
        padding: 64px 0 28px;
        font-size: 14px;
    }
    .footer-inner {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }
    .footer-brand .footer-logo {
        font-size: 22px;
        font-weight: 700;
        color: #FFFFFF;
        letter-spacing: 1.5px;
        margin-bottom: 12px;
    }
    .footer-brand p {
        font-size: 14px;
        color: #9FAABA;
        line-height: 1.8;
        max-width: 300px;
    }
    .footer-col h4 {
        font-size: 15px;
        font-weight: 600;
        color: #FFFFFF;
        margin-bottom: 14px;
        letter-spacing: 0.5px;
    }
    .footer-col ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-col li {
        margin-bottom: 8px;
    }
    .footer-col a {
        color: #9FAABA;
        font-size: 14px;
        transition: var(--transition);
    }
    .footer-col a:hover {
        color: #FFFFFF;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.12);
        padding-top: 20px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        font-size: 13px;
        color: #7A8798;
    }
    .footer-links {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .footer-links a {
        color: #9FAABA;
    }
    .footer-links a:hover {
        color: #FFFFFF;
    }
    .footer-links span {
        color: #5A6675;
    }
    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .main-nav {
            gap: 16px;
        }
        .main-nav a {
            font-size: 13px;
        }
        .article-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .expert-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .column-intro-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
    }
    @media (max-width: 768px) {
        :root {
            --section-padding: 48px 0;
        }
        .nav-toggle {
            display: block;
        }
        .main-nav {
            display: none;
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--primary-dark);
            flex-direction: column;
            padding: 16px 20px;
            gap: 4px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.2);
        }
        .main-nav.is-open {
            display: flex;
        }
        .main-nav a {
            padding: 12px 0;
            font-size: 15px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .main-nav a::after {
            display: none;
        }
        .nav-actions {
            margin-left: auto;
        }
        .nav-actions a {
            padding: 6px 10px;
            font-size: 12px;
        }
        .page-hero {
            padding: 40px 0 32px;
        }
        .page-hero h1 {
            font-size: 24px;
        }
        .page-hero .hero-desc {
            font-size: 14px;
        }
        .article-grid {
            grid-template-columns: 1fr;
        }
        .expert-grid {
            grid-template-columns: 1fr;
        }
        .data-reference-grid {
            grid-template-columns: 1fr;
        }
        .cta-content {
            flex-direction: column;
            align-items: flex-start;
        }
        .footer-inner {
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
        }
        .column-intro-main .intro-points {
            grid-template-columns: 1fr;
        }
    }
    @media (max-width: 520px) {
        .site-header .header-inner {
            padding: 0 14px;
            min-height: 58px;
        }
        .logo-icon {
            width: 30px;
            height: 30px;
            font-size: 15px;
        }
        .logo-text a {
            font-size: 17px;
        }
        .page-hero {
            padding: 32px 0 24px;
        }
        .page-hero h1 {
            font-size: 20px;
        }
        .section-title {
            font-size: 20px;
        }
        .footer-inner {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .article-card-body h3 {
            font-size: 15px;
            min-height: auto;
        }
        .cta-content h2 {
            font-size: 20px;
        }
    }

/* roulang page: category2 */
:root {
            --primary-dark: #2C3E5A;
            --primary-darker: #1E2A3D;
            --primary-light: #3E5270;
            --accent-green: #1F8A5B;
            --accent-green-dark: #18724B;
            --accent-green-light: #EAF5EF;
            --accent-gold: #C49A3C;
            --accent-gold-light: #FBF6EB;
            --bg-light: #F5F7FA;
            --bg-white: #FFFFFF;
            --text-body: #2B2F36;
            --text-secondary: #6A7280;
            --border-color: #D9DEE5;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(44,62,90,0.05);
            --shadow-md: 0 4px 14px rgba(44,62,90,0.06);
            --shadow-lg: 0 8px 22px rgba(44,62,90,0.14);
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-padding: 72px 0;
            --transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--accent-green-dark);
            text-decoration: none;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
            font-size: 15px;
        }

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

        section {
            padding: var(--section-padding);
        }

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

        .section-dark {
            background-color: var(--primary-dark);
            color: #E8EDF3;
        }

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

        .section-dark .section-subtitle {
            color: #B8C2D0;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 720px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            background: var(--accent-green-light);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .section-tag.tag-gold {
            color: #8B6D2B;
            background: var(--accent-gold-light);
        }

        .section-tag.tag-dark {
            color: #E8EDF3;
            background: rgba(255,255,255,0.12);
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
            text-align: center;
            letter-spacing: 0.3px;
            line-height: 1.4;
        }

        .btn-primary {
            background-color: var(--accent-green);
            color: #FFFFFF;
            border-color: var(--accent-green);
        }

        .btn-primary:hover {
            background-color: var(--accent-green-dark);
            border-color: var(--accent-green-dark);
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(31,138,91,0.3);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--accent-green);
            border-color: var(--accent-green);
        }

        .btn-secondary:hover {
            background-color: var(--accent-green-light);
            color: var(--accent-green-dark);
            border-color: var(--accent-green);
        }

        .btn-white-outline {
            background-color: transparent;
            color: #FFFFFF;
            border-color: rgba(255,255,255,0.6);
        }

        .btn-white-outline:hover {
            background-color: rgba(255,255,255,0.15);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 3px 10px;
            letter-spacing: 0.3px;
        }

        .badge-green {
            background-color: var(--accent-green);
            color: #FFFFFF;
        }

        .badge-gold {
            background-color: var(--accent-gold);
            color: #2B2F36;
        }

        .badge-gray {
            background-color: #E4E9EE;
            color: var(--text-secondary);
        }

        /* Header / Navigation */
        .site-header {
            background-color: var(--primary-dark);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0,0,0,0.12);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            max-width: 1200px;
            margin: 0 auto;
            min-height: 64px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--accent-green);
            color: #FFFFFF;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
            line-height: 1;
        }

        .logo-text a {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.5px;
        }

        .logo-text a:hover {
            color: #FFFFFF;
            opacity: 0.9;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav a {
            display: inline-block;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 500;
            color: #E8EDF3;
            border-radius: 4px;
            position: relative;
            transition: var(--transition);
        }

        .main-nav a:hover {
            color: #FFFFFF;
            background-color: rgba(255,255,255,0.08);
        }

        .main-nav a.active {
            color: #FFFFFF;
            background-color: rgba(31,138,91,0.25);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 4px;
            height: 3px;
            background-color: var(--accent-green);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-actions a {
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary-dark);
            background-color: #FFFFFF;
            border-radius: 4px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-actions a:hover {
            background-color: #E8EDF3;
            color: var(--primary-dark);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #E8EDF3;
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary-darker);
            color: #B8C2D0;
            padding: 48px 0 24px;
            font-size: 14px;
        }

        .site-footer .footer-inner {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: #B8C2D0;
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

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

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: #B8C2D0;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
            color: #8FA0B8;
            font-size: 13px;
        }

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

        .footer-links a {
            color: #B8C2D0;
        }

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

        /* Page-specific styles */
        .page-hero {
            background-color: var(--primary-dark);
            color: #FFFFFF;
            padding: 56px 0 64px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(31,138,91,0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .page-hero .hero-badge {
            display: inline-block;
            background-color: var(--accent-green);
            color: #FFFFFF;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .page-hero h1 {
            font-size: 34px;
            font-weight: 700;
            margin: 0 0 14px;
            color: #FFFFFF;
            line-height: 1.3;
        }

        .page-hero p {
            font-size: 16px;
            max-width: 720px;
            color: #C4CEDB;
            line-height: 1.8;
            margin: 0;
        }

        .breadcrumb {
            font-size: 13px;
            color: #94A3B8;
            margin-bottom: 12px;
        }

        .breadcrumb a {
            color: #94A3B8;
        }

        .breadcrumb a:hover {
            color: #FFFFFF;
        }

        .breadcrumb span {
            margin: 0 6px;
        }

        /* Method explain cards */
        .method-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .method-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
        }

        .method-item:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
        }

        .method-item .method-icon {
            width: 48px;
            height: 48px;
            background-color: var(--accent-green-light);
            color: var(--accent-green);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 14px;
        }

        .method-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary-dark);
            margin: 0 0 8px;
        }

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

        /* Index cards */
        .index-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }

        .index-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .index-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
            transform: translateY(-2px);
        }

        .index-card .card-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 12px;
        }

        .index-card .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary-dark);
            margin: 0;
        }

        .index-card .index-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .index-card .index-value small {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .index-card .card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0 0 12px;
        }

        .index-card .trend-indicator {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
        }

        .trend-up {
            color: var(--accent-green);
        }

        .trend-down {
            color: #D94A4A;
        }

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

        .index-card .card-footer {
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
            margin-top: 12px;
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* Trend visualization */
        .trend-chart {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .trend-chart-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .trend-chart-header h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary-dark);
            margin: 0;
        }

        .chart-placeholder {
            height: 300px;
            background: linear-gradient(180deg, #F8FAFC 0%, #EEF2F6 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 14px;
            letter-spacing: 0.5px;
            border: 1px dashed var(--border-color);
        }

        .legend {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .legend span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .legend .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            display: inline-block;
        }

        .dot-green {
            background-color: var(--accent-green);
        }

        .dot-gold {
            background-color: var(--accent-gold);
        }

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

        /* Document entrance */
        .doc-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: flex;
            align-items: center;
            gap: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .doc-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
        }

        .doc-icon {
            width: 64px;
            height: 64px;
            background-color: var(--accent-green-light);
            color: var(--accent-green);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            flex-shrink: 0;
        }

        .doc-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary-dark);
            margin: 0 0 6px;
        }

        .doc-content p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 12px;
            line-height: 1.7;
        }

        /* Topic cards */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .topic-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
        }

        .topic-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

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

        .topic-card .topic-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            margin: 0 0 6px;
        }

        .topic-card .topic-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* CTA section */
        .cta-section {
            background-color: var(--primary-dark);
            color: #FFFFFF;
            padding: 56px 0;
        }

        .cta-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-box h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 0 0 8px;
            color: #FFFFFF;
        }

        .cta-box p {
            font-size: 15px;
            color: #C4CEDB;
            margin: 0;
            max-width: 560px;
            line-height: 1.7;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .site-header .header-inner {
                flex-wrap: wrap;
                min-height: auto;
                padding: 12px 20px;
            }

            .main-nav {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                gap: 4px;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }

            .main-nav a {
                white-space: nowrap;
            }

            .nav-actions {
                margin-left: auto;
            }

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

        @media (max-width: 768px) {
            section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 22px;
            }

            .page-hero h1 {
                font-size: 26px;
            }

            .page-hero p {
                font-size: 15px;
            }

            .cta-box {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .doc-card {
                flex-direction: column;
                align-items: flex-start;
            }

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

        @media (max-width: 520px) {
            .nav-toggle {
                display: block;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                align-items: flex-start;
                background-color: var(--primary-dark);
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                padding: 16px 20px;
                box-shadow: 0 8px 16px rgba(0,0,0,0.2);
                z-index: 99;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                display: block;
                width: 100%;
                padding: 10px 12px;
            }

            .main-nav a.active::after {
                display: none;
            }

            .nav-actions {
                display: none;
            }

            .site-header .header-inner {
                flex-wrap: nowrap;
            }

            .logo-area {
                flex: 1;
            }

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

            .page-hero h1 {
                font-size: 24px;
            }

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

            .topic-grid {
                grid-template-columns: 1fr;
            }

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

/* roulang page: category3 */
:root {
            --primary-dark: #2C3E5A;
            --primary-darker: #1E2A3D;
            --primary-light: #3E5270;
            --accent-green: #1F8A5B;
            --accent-green-dark: #18724B;
            --accent-green-light: #EAF5EF;
            --accent-gold: #C49A3C;
            --accent-gold-light: #FBF6EB;
            --bg-light: #F5F7FA;
            --bg-white: #FFFFFF;
            --text-body: #2B2F36;
            --text-secondary: #6A7280;
            --border-color: #D9DEE5;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(44,62,90,0.05);
            --shadow-md: 0 4px 14px rgba(44,62,90,0.06);
            --shadow-lg: 0 8px 22px rgba(44,62,90,0.14);
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-padding: 72px 0;
            --transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--accent-green);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-green-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
            font-size: 15px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        section {
            padding: var(--section-padding);
        }
        .section-alt {
            background-color: var(--bg-light);
        }
        .section-dark {
            background-color: var(--primary-dark);
            color: #E8EDF3;
        }
        .section-dark .section-title {
            color: #FFFFFF;
        }
        .section-dark .section-subtitle {
            color: #B8C2D0;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 720px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            background: var(--accent-green-light);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .section-tag.tag-gold {
            color: #8B6D2B;
            background: var(--accent-gold-light);
        }
        .section-tag.tag-dark {
            color: #E8EDF3;
            background: rgba(255,255,255,0.12);
        }
        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
            text-align: center;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background-color: var(--accent-green);
            color: #FFFFFF;
            border-color: var(--accent-green);
        }
        .btn-primary:hover {
            background-color: var(--accent-green-dark);
            border-color: var(--accent-green-dark);
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(31,138,91,0.3);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--accent-green);
            border-color: var(--accent-green);
        }
        .btn-secondary:hover {
            background-color: var(--accent-green-light);
            color: var(--accent-green-dark);
            border-color: var(--accent-green);
        }
        .btn-white-outline {
            background-color: transparent;
            color: #FFFFFF;
            border-color: rgba(255,255,255,0.6);
        }
        .btn-white-outline:hover {
            background-color: rgba(255,255,255,0.15);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 3px 10px;
            letter-spacing: 0.3px;
        }
        .badge-green {
            background-color: var(--accent-green);
            color: #FFFFFF;
        }
        .badge-gold {
            background-color: var(--accent-gold);
            color: #2B2F36;
        }
        .badge-gray {
            background-color: #E4E9EE;
            color: var(--text-secondary);
        }

        /* Header */
        .site-header {
            background-color: var(--primary-dark);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0,0,0,0.12);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            max-width: 1200px;
            margin: 0 auto;
            min-height: 64px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--accent-green);
            color: #FFFFFF;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
        }
        .logo-text a {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 1px;
        }
        .logo-text a:hover {
            color: #FFFFFF;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #E8EDF3;
            font-size: 22px;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background-color: rgba(255,255,255,0.1);
            color: #FFFFFF;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav a {
            color: #E8EDF3;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: #FFFFFF;
            background-color: rgba(255,255,255,0.08);
        }
        .main-nav a.active {
            color: #FFFFFF;
            background-color: rgba(255,255,255,0.08);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 12px;
            right: 12px;
            height: 3px;
            background-color: var(--accent-green);
            border-radius: 2px 2px 0 0;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-actions a {
            color: #E8EDF3;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border: 1px solid rgba(255,255,255,0.35);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-actions a:hover {
            background-color: rgba(255,255,255,0.12);
            color: #FFFFFF;
            border-color: rgba(255,255,255,0.6);
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            background-color: var(--bg-light);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            color: #B0B8C4;
            font-size: 12px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--accent-green);
        }
        .breadcrumb .current {
            color: var(--primary-dark);
            font-weight: 600;
        }

        /* Page Hero */
        .page-hero {
            background-color: var(--primary-dark);
            color: #E8EDF3;
            padding: 56px 0 48px;
        }
        .page-hero h1 {
            font-size: 34px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .page-hero .page-hero-desc {
            font-size: 16px;
            color: #B8C2D0;
            max-width: 760px;
            line-height: 1.9;
            margin-bottom: 20px;
        }
        .page-hero .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .page-hero .hero-stat-item {
            display: flex;
            flex-direction: column;
        }
        .page-hero .hero-stat-num {
            font-size: 28px;
            font-weight: 700;
            color: #FFFFFF;
        }
        .page-hero .hero-stat-label {
            font-size: 13px;
            color: #B8C2D0;
        }

        /* Topic Cards */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
            transform: translateY(-3px);
        }
        .topic-card-img {
            height: 180px;
            overflow: hidden;
            background-color: #E4E9EE;
            position: relative;
        }
        .topic-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .topic-card-img .badge {
            position: absolute;
            top: 10px;
            left: 10px;
        }
        .topic-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .topic-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .topic-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
            flex: 1;
        }
        .topic-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 12px;
            color: var(--text-secondary);
        }
        .topic-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .topic-card-meta i {
            color: var(--accent-green);
            font-size: 11px;
        }

        /* Featured Topics */
        .featured-topic-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .featured-topic-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-topic-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
        }
        .featured-topic-img {
            height: 200px;
            overflow: hidden;
            background-color: #E4E9EE;
        }
        .featured-topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-topic-body {
            padding: 20px 24px 24px;
        }
        .featured-topic-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .featured-topic-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* Subscribe */
        .subscribe-box {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .subscribe-info {
            flex: 1;
            min-width: 260px;
        }
        .subscribe-info h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }
        .subscribe-info p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        .subscribe-form {
            flex: 1;
            min-width: 280px;
            display: flex;
            gap: 10px;
        }
        .subscribe-form input {
            flex: 1;
            padding: 10px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }
        .subscribe-form input:focus {
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(31,138,91,0.1);
        }

        /* News list */
        .news-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .news-item {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: block;
        }
        .news-item:hover {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-md);
        }
        .news-item .news-date {
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 4px;
        }
        .news-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary-dark);
            line-height: 1.5;
            margin-bottom: 0;
        }
        .news-item:hover h4 {
            color: var(--accent-green);
        }

        /* CTA Form */
        .cta-form-section {
            background-color: var(--primary-dark);
            padding: 56px 0;
        }
        .cta-form-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 40px;
            max-width: 720px;
            margin: 0 auto;
            box-shadow: var(--shadow-lg);
        }
        .cta-form-card h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
            text-align: center;
        }
        .cta-form-card .cta-subtitle {
            font-size: 14px;
            color: var(--text-secondary);
            text-align: center;
            margin-bottom: 24px;
        }
        .cta-form-card form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .cta-form-card .form-full {
            grid-column: 1 / -1;
        }
        .cta-form-card label {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 4px;
            display: block;
        }
        .cta-form-card input,
        .cta-form-card select,
        .cta-form-card textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
            background: #FFFFFF;
        }
        .cta-form-card input:focus,
        .cta-form-card select:focus,
        .cta-form-card textarea:focus {
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(31,138,91,0.1);
        }
        .cta-form-card textarea {
            resize: vertical;
            min-height: 80px;
        }
        .cta-form-card .btn {
            grid-column: 1 / -1;
            width: 100%;
            padding: 12px 24px;
            font-size: 15px;
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary-darker);
            color: #B8C2D0;
            padding: 48px 0 24px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #B8C2D0;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #B8C2D0;
            font-size: 13px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #FFFFFF;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: #8E9BB0;
        }
        .footer-links a {
            color: #B8C2D0;
            font-size: 12px;
        }
        .footer-links a:hover {
            color: #FFFFFF;
        }
        .footer-links span {
            color: #5A6A84;
            margin: 0 6px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: repeat(2, 1fr);
            }
            .main-nav {
                gap: 0;
            }
            .main-nav a {
                padding: 8px 10px;
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background-color: var(--primary-dark);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 20px;
                gap: 2px;
                box-shadow: 0 8px 20px rgba(0,0,0,0.2);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background-color: rgba(31,138,91,0.25);
                color: #FFFFFF;
            }
            .nav-actions {
                display: none;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero .hero-stats {
                gap: 16px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .featured-topic-row {
                grid-template-columns: 1fr;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .cta-form-card form {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            section {
                padding: 48px 20px;
            }
        }
        @media (max-width: 520px) {
            .page-hero {
                padding: 36px 0 32px;
            }
            .page-hero h1 {
                font-size: 22px;
            }
            .page-hero .page-hero-desc {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .cta-form-card {
                padding: 24px 20px;
            }
        }

/* roulang page: category4 */
:root {
            --primary-dark: #2C3E5A;
            --primary-darker: #1E2A3D;
            --primary-light: #3E5270;
            --accent-green: #1F8A5B;
            --accent-green-dark: #18724B;
            --accent-green-light: #EAF5EF;
            --accent-gold: #C49A3C;
            --accent-gold-light: #FBF6EB;
            --bg-light: #F5F7FA;
            --bg-white: #FFFFFF;
            --text-body: #2B2F36;
            --text-secondary: #6A7280;
            --border-color: #D9DEE5;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(44, 62, 90, 0.05);
            --shadow-md: 0 4px 14px rgba(44, 62, 90, 0.06);
            --shadow-lg: 0 8px 22px rgba(44, 62, 90, 0.14);
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-padding: 72px 0;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--accent-green-dark);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
            font-size: 15px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.4;
            color: var(--primary-dark);
            margin: 0 0 12px 0;
        }

        h1 {
            font-size: 32px;
        }

        h2 {
            font-size: 24px;
        }

        h3 {
            font-size: 18px;
        }

        h4 {
            font-size: 16px;
        }

        p {
            margin: 0 0 16px 0;
        }

        ul,
        ol {
            margin: 0 0 16px 0;
            padding-left: 20px;
        }

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

        section {
            padding: var(--section-padding);
        }

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

        .section-dark {
            background-color: var(--primary-dark);
            color: #E8EDF3;
        }

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

        .section-dark .section-subtitle {
            color: #B8C2D0;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 720px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            background: var(--accent-green-light);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .section-tag.tag-gold {
            color: #8B6D2B;
            background: var(--accent-gold-light);
        }

        .section-tag.tag-dark {
            color: #E8EDF3;
            background: rgba(255, 255, 255, 0.12);
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
            text-align: center;
            letter-spacing: 0.3px;
            line-height: 1.5;
        }

        .btn-primary {
            background-color: var(--accent-green);
            color: #FFFFFF;
            border-color: var(--accent-green);
        }

        .btn-primary:hover {
            background-color: var(--accent-green-dark);
            border-color: var(--accent-green-dark);
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(31, 138, 91, 0.3);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--accent-green);
            border-color: var(--accent-green);
        }

        .btn-secondary:hover {
            background-color: var(--accent-green-light);
            color: var(--accent-green-dark);
            border-color: var(--accent-green);
        }

        .btn-white-outline {
            background-color: transparent;
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.6);
        }

        .btn-white-outline:hover {
            background-color: rgba(255, 255, 255, 0.15);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 3px 10px;
            letter-spacing: 0.3px;
        }

        .badge-green {
            background-color: var(--accent-green);
            color: #FFFFFF;
        }

        .badge-gold {
            background-color: var(--accent-gold);
            color: #2B2F36;
        }

        .badge-gray {
            background-color: #E4E9EE;
            color: var(--text-secondary);
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            background-color: var(--primary-dark);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            max-width: 1200px;
            margin: 0 auto;
            min-height: 64px;
            gap: 16px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--accent-green);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            letter-spacing: 0;
        }

        .logo-text a {
            color: #FFFFFF;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 1px;
        }

        .logo-text a:hover {
            color: #FFFFFF;
            opacity: 0.85;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            color: #E8EDF3;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 4px;
            transition: var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: #FFFFFF;
            background-color: rgba(255, 255, 255, 0.08);
        }

        .main-nav a.active {
            color: #FFFFFF;
            background-color: rgba(255, 255, 255, 0.1);
            box-shadow: inset 0 -3px 0 var(--accent-green);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-actions a {
            color: #E8EDF3;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 6px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-actions a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.4);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #E8EDF3;
            font-size: 22px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 4px;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            background-color: #F0F2F5;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .breadcrumb-bar .breadcrumb-inner {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .breadcrumb-bar a {
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .breadcrumb-bar a:hover {
            color: var(--accent-green);
        }

        .breadcrumb-bar .separator {
            color: #B0B8C4;
        }

        .breadcrumb-bar .current {
            color: var(--primary-dark);
            font-weight: 600;
        }

        /* ===== Category Hero（分类页专属，区别于首页Hero） ===== */
        .category-hero {
            background-color: var(--bg-light);
            padding: 52px 0 48px;
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 400px;
            height: 100%;
            background: linear-gradient(135deg, rgba(31, 138, 91, 0.05), rgba(44, 62, 90, 0.04));
            pointer-events: none;
        }

        .category-hero .hero-content {
            max-width: 780px;
            position: relative;
            z-index: 1;
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .category-hero .hero-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 20px;
            max-width: 660px;
        }

        .category-hero .hero-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .category-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .category-hero .hero-meta i {
            color: var(--accent-green);
        }

        /* ===== Article Cards List ===== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }

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

        .article-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
            transform: translateY(-3px);
        }

        .article-card .card-image {
            height: 200px;
            overflow: hidden;
            position: relative;
            background-color: #E4E9EE;
        }

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

        .article-card:hover .card-image img {
            transform: scale(1.05);
        }

        .article-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 1;
        }

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

        .article-card .card-tag-row {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .article-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
            line-height: 1.5;
            transition: var(--transition);
        }

        .article-card .card-title a {
            color: var(--primary-dark);
            transition: var(--transition);
        }

        .article-card .card-title a:hover {
            color: var(--accent-green);
        }

        .article-card .card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #9CA4B0;
            border-top: 1px solid #ECEEF2;
            padding-top: 12px;
        }

        .article-card .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .article-card .card-meta i {
            margin-right: 4px;
        }

        /* ===== Hot Topics ===== */
        .topics-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .topic-pill {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            color: var(--text-body);
            transition: var(--transition);
            cursor: pointer;
        }

        .topic-pill:hover {
            border-color: var(--accent-green);
            background-color: var(--accent-green-light);
            color: var(--accent-green-dark);
            box-shadow: var(--shadow-sm);
        }

        .topic-pill.hot {
            background-color: var(--accent-gold-light);
            border-color: var(--accent-gold);
            color: #8B6D2B;
        }

        .topic-pill.hot:hover {
            background-color: var(--accent-gold);
            color: #FFFFFF;
            border-color: var(--accent-gold);
        }

        /* ===== Expert Views ===== */
        .expert-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }

        .expert-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }

        .expert-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent-green);
        }

        .expert-card .expert-quote-icon {
            font-size: 28px;
            color: var(--accent-gold);
            margin-bottom: 10px;
            opacity: 0.7;
        }

        .expert-card .expert-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }

        .expert-card .expert-role {
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        .expert-card .expert-text {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.85;
            font-style: italic;
            border-left: 3px solid var(--accent-green-light);
            padding-left: 14px;
        }

        /* ===== Data Citation / Stats ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }

        .stat-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .stat-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent-green);
            transform: translateY(-2px);
        }

        .stat-item .stat-number {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.3;
            margin-bottom: 4px;
        }

        .stat-item .stat-number .stat-unit {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-left: 2px;
        }

        .stat-item .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .stat-item .stat-icon {
            font-size: 24px;
            color: var(--accent-green);
            margin-bottom: 8px;
        }

        /* ===== Related Info List ===== */
        .info-list-compact {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 16px;
        }

        .info-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            transition: var(--transition);
        }

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

        .info-item .info-icon {
            width: 36px;
            height: 36px;
            border-radius: 6px;
            background-color: var(--accent-green-light);
            color: var(--accent-green);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 16px;
        }

        .info-item .info-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }

        .info-item .info-content p {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== Conversion CTA ===== */
        .cta-section {
            background-color: var(--primary-dark);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 600px;
            height: 100%;
            background: radial-gradient(ellipse at center, rgba(31, 138, 91, 0.15), transparent 70%);
            pointer-events: none;
        }

        .cta-section .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cta-section .cta-text {
            flex: 1;
            min-width: 280px;
        }

        .cta-section .cta-text h2 {
            color: #FFFFFF;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cta-section .cta-text p {
            color: #B8C2D0;
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 540px;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background-color: var(--primary-darker);
            color: #B8C2D0;
            padding: 56px 0 0;
            border-top: 4px solid var(--accent-green);
        }

        .site-footer .footer-inner {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .site-footer .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: #9CA4B0;
            margin-bottom: 0;
            max-width: 300px;
        }

        .site-footer .footer-col h4 {
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

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

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

        .site-footer .footer-col ul li a {
            color: #9CA4B0;
            font-size: 13px;
            transition: var(--transition);
        }

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

        .site-footer .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 12px;
            color: #7A8494;
            line-height: 1.8;
        }

        .site-footer .footer-bottom .footer-links {
            margin-top: 6px;
        }

        .site-footer .footer-bottom .footer-links a {
            color: #9CA4B0;
            font-size: 12px;
            transition: var(--transition);
        }

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

        .site-footer .footer-bottom .footer-links span {
            margin: 0 8px;
            color: #565F6E;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .site-header .header-inner {
                flex-wrap: wrap;
                padding: 8px 16px;
                min-height: auto;
            }

            .main-nav {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                overflow-x: auto;
                padding: 8px 0 4px;
                gap: 2px;
                -webkit-overflow-scrolling: touch;
            }

            .main-nav a {
                white-space: nowrap;
                padding: 6px 10px;
                font-size: 13px;
            }

            .nav-actions {
                margin-left: auto;
            }

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

        @media (max-width: 768px) {
            :root {
                --section-padding: 48px 0;
            }

            h1 {
                font-size: 26px;
            }

            h2 {
                font-size: 21px;
            }

            h3 {
                font-size: 17px;
            }

            .category-hero {
                padding: 36px 0 32px;
            }

            .category-hero h1 {
                font-size: 26px;
            }

            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .expert-grid {
                grid-template-columns: 1fr;
            }

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

            .stat-item .stat-number {
                font-size: 24px;
            }

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

            .cta-section .cta-inner {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }

            .cta-section .cta-text p {
                margin: 0 auto;
            }

            .cta-section .cta-actions {
                justify-content: center;
            }

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

            .site-footer .footer-brand p {
                max-width: none;
            }
        }

        @media (max-width: 640px) {
            .site-header .header-inner {
                padding: 0 12px;
                min-height: 56px;
                gap: 8px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }

            .logo-text a {
                font-size: 16px;
            }

            .nav-toggle {
                display: block;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 8px 0;
                background-color: var(--primary-dark);
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                gap: 0;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                width: 100%;
                padding: 10px 12px;
                border-radius: 0;
                font-size: 14px;
                display: block;
            }

            .nav-actions {
                gap: 4px;
            }

            .nav-actions a {
                font-size: 11px;
                padding: 5px 8px;
            }

            .category-hero h1 {
                font-size: 22px;
            }

            .article-card .card-image {
                height: 170px;
            }

            .article-card .card-title {
                font-size: 15px;
            }

            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .stat-item {
                padding: 16px 12px;
            }

            .stat-item .stat-number {
                font-size: 20px;
            }

            .stat-item .stat-label {
                font-size: 11px;
            }

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

            .cta-section .cta-text h2 {
                font-size: 21px;
            }

            .btn {
                padding: 8px 16px;
                font-size: 13px;
            }
        }

/* roulang page: category5 */
:root {
            --primary-dark: #2C3E5A;
            --primary-darker: #1E2A3D;
            --primary-light: #3E5270;
            --accent-green: #1F8A5B;
            --accent-green-dark: #18724B;
            --accent-green-light: #EAF5EF;
            --accent-gold: #C49A3C;
            --accent-gold-light: #FBF6EB;
            --bg-light: #F5F7FA;
            --bg-white: #FFFFFF;
            --text-body: #2B2F36;
            --text-secondary: #6A7280;
            --border-color: #D9DEE5;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(44, 62, 90, 0.05);
            --shadow-md: 0 4px 14px rgba(44, 62, 90, 0.06);
            --shadow-lg: 0 8px 22px rgba(44, 62, 90, 0.14);
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-padding: 72px 0;
            --transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--accent-green-dark);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
            font-size: 15px;
        }

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

        section {
            padding: var(--section-padding);
        }

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

        .section-dark {
            background-color: var(--primary-dark);
            color: #E8EDF3;
        }

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

        .section-dark .section-subtitle {
            color: #B8C2D0;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 720px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            background: var(--accent-green-light);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .section-tag.tag-gold {
            color: #8B6D2B;
            background: var(--accent-gold-light);
        }

        .section-tag.tag-dark {
            color: #E8EDF3;
            background: rgba(255, 255, 255, 0.12);
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
            text-align: center;
            letter-spacing: 0.3px;
            line-height: 1.6;
        }

        .btn-primary {
            background-color: var(--accent-green);
            color: #FFFFFF;
            border-color: var(--accent-green);
        }

        .btn-primary:hover {
            background-color: var(--accent-green-dark);
            border-color: var(--accent-green-dark);
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(31, 138, 91, 0.3);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--accent-green);
            border-color: var(--accent-green);
        }

        .btn-secondary:hover {
            background-color: var(--accent-green-light);
            color: var(--accent-green-dark);
            border-color: var(--accent-green);
        }

        .btn-white-outline {
            background-color: transparent;
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.6);
        }

        .btn-white-outline:hover {
            background-color: rgba(255, 255, 255, 0.15);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 3px 10px;
            letter-spacing: 0.3px;
            line-height: 1.5;
        }

        .badge-green {
            background-color: var(--accent-green);
            color: #FFFFFF;
        }

        .badge-gold {
            background-color: var(--accent-gold);
            color: #2B2F36;
        }

        .badge-gray {
            background-color: #E4E9EE;
            color: var(--text-secondary);
        }

        /* Header / Navigation */
        .site-header {
            background-color: var(--primary-dark);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            max-width: 1200px;
            margin: 0 auto;
            min-height: 64px;
            gap: 20px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--accent-green);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }

        .logo-text a {
            color: #FFFFFF;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.5px;
        }

        .logo-text a:hover {
            color: #CFE8DC;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: #E8EDF3;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
        }

        .main-nav a.active {
            color: #FFFFFF;
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 12px;
            right: 12px;
            height: 3px;
            background-color: var(--accent-green);
            border-radius: 2px 2px 0 0;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-actions a {
            color: #E8EDF3;
            font-size: 13px;
            padding: 7px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.35);
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-actions a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.6);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #E8EDF3;
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
            line-height: 1;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            color: #FFFFFF;
        }

        .nav-toggle:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background-color: var(--bg-light);
            border-bottom: 1px solid var(--border-color);
            padding: 14px 0;
        }

        .breadcrumb-bar .breadcrumb-inner {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .breadcrumb-bar a {
            color: var(--accent-green);
            transition: var(--transition);
        }

        .breadcrumb-bar a:hover {
            color: var(--accent-green-dark);
        }

        .breadcrumb-bar .separator {
            color: #B0B8C4;
            margin: 0 2px;
        }

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

        /* Page Hero / H1 Section */
        .page-hero {
            background-color: var(--primary-dark);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
            background-image: linear-gradient(135deg, rgba(44, 62, 90, 0.95) 0%, rgba(30, 42, 61, 0.85) 60%, rgba(31, 138, 91, 0.5) 100%);
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background-image: url('/assets/images/6ee7bb5212b64faf.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .page-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.4;
            letter-spacing: 0.5px;
        }

        .page-hero .page-hero-desc {
            font-size: 16px;
            color: #B8C2D0;
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .page-hero .page-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 13px;
            color: #9FAAB8;
        }

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

        .page-hero .page-hero-meta i {
            color: var(--accent-green);
        }

        /* Resource Filter Navigation */
        .resource-filter {
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            padding: 20px 0;
        }

        .resource-filter .filter-inner {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }

        .resource-filter .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-right: 4px;
            flex-shrink: 0;
        }

        .resource-filter .filter-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            border: 1px solid var(--border-color);
            background-color: var(--bg-white);
            color: var(--text-secondary);
            transition: var(--transition);
            letter-spacing: 0.3px;
            user-select: none;
        }

        .resource-filter .filter-tag:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background-color: var(--accent-green-light);
        }

        .resource-filter .filter-tag.active-filter {
            background-color: var(--accent-green);
            color: #FFFFFF;
            border-color: var(--accent-green);
        }

        /* Resource Cards */
        .resource-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .resource-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
            transform: translateY(-2px);
        }

        .resource-card .resource-card-img {
            height: 170px;
            background-color: #E4E9EE;
            overflow: hidden;
            flex-shrink: 0;
            position: relative;
        }

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

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

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

        .resource-card .resource-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .resource-card .resource-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .resource-card .resource-card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .resource-card .resource-card-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: #8A94A2;
            padding-top: 10px;
            border-top: 1px solid var(--border-color);
        }

        .resource-card .resource-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .resource-card .resource-card-meta i {
            color: var(--accent-green);
            font-size: 12px;
        }

        .resource-card .resource-card-action {
            margin-top: 14px;
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .resource-card .resource-card-action .btn {
            font-size: 13px;
            padding: 7px 16px;
            border-radius: 6px;
        }

        .resource-card .resource-card-action .btn-link {
            font-size: 13px;
            color: var(--accent-green);
            font-weight: 500;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .resource-card .resource-card-action .btn-link:hover {
            color: var(--accent-green-dark);
            text-decoration: underline;
        }

        /* Featured Resources */
        .featured-resource {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-left: 4px solid var(--accent-green);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 16px;
            height: 100%;
        }

        .featured-resource:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
            transform: translateX(4px);
        }

        .featured-resource .featured-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background-color: var(--accent-green-light);
            color: var(--accent-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .featured-resource .featured-content {
            flex: 1;
        }

        .featured-resource .featured-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .featured-resource .featured-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .featured-resource .featured-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-green);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }

        .featured-resource .featured-link:hover {
            color: var(--accent-green-dark);
            text-decoration: underline;
        }

        /* Resource Submit Form */
        .resource-submit-form {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-md);
        }

        .resource-submit-form label {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
            display: block;
        }

        .resource-submit-form input,
        .resource-submit-form textarea,
        .resource-submit-form select {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text-body);
            background-color: var(--bg-white);
            transition: var(--transition);
            width: 100%;
            margin-bottom: 16px;
            box-sizing: border-box;
        }

        .resource-submit-form input:focus,
        .resource-submit-form textarea:focus,
        .resource-submit-form select:focus {
            outline: none;
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(31, 138, 91, 0.15);
        }

        .resource-submit-form textarea {
            min-height: 100px;
            resize: vertical;
        }

        .resource-submit-form .btn {
            margin-top: 4px;
        }

        /* Related News Cards */
        .news-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-green);
            transform: translateY(-2px);
        }

        .news-card .news-card-img {
            height: 140px;
            background-color: #E4E9EE;
            overflow: hidden;
            flex-shrink: 0;
        }

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

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

        .news-card .news-card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .news-card-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-card .news-card-date {
            font-size: 12px;
            color: #8A94A2;
            margin-top: auto;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* FAQ Section */
        .faq-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary-dark);
            gap: 12px;
            user-select: none;
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-stack);
        }

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

        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--accent-green);
            transition: transform 0.3s ease;
            font-size: 14px;
        }

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

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* CTA Section */
        .cta-section {
            background-color: var(--primary-dark);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            background-image: url('/assets/images/365bb900d0b0d2cb.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }

        .cta-section .cta-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .cta-section .cta-text p {
            font-size: 15px;
            color: #B8C2D0;
            max-width: 560px;
            line-height: 1.8;
            margin: 0;
        }

        .cta-section .cta-buttons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary-darker);
            color: #B8C2D0;
            padding: 48px 0 0;
        }

        .site-footer .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .site-footer .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            max-width: 320px;
            margin: 0;
        }

        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

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

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

        .site-footer .footer-col ul li a {
            font-size: 13px;
            color: #B8C2D0;
            transition: var(--transition);
        }

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

        .site-footer .footer-bottom {
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: #8A94A2;
        }

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

        .site-footer .footer-bottom .footer-links a {
            color: #8A94A2;
            font-size: 12px;
            transition: var(--transition);
        }

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

        /* Grid helper for resource cards */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .page-hero h1 {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background-color: var(--primary-dark);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 20px 20px;
                box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
                z-index: 99;
            }

            .main-nav.show {
                display: flex;
            }

            .main-nav a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 15px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }

            .main-nav a.active::after {
                display: none;
            }

            .main-nav a.active {
                background-color: var(--accent-green);
                color: #FFFFFF;
            }

            .nav-actions {
                display: none;
            }

            .site-header .header-inner {
                min-height: 56px;
                padding: 0 16px;
                gap: 10px;
            }

            .logo-text a {
                font-size: 16px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }

            section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 22px;
            }

            .section-subtitle {
                font-size: 14px;
                margin-bottom: 24px;
            }

            .page-hero {
                padding: 40px 0 36px;
            }

            .page-hero h1 {
                font-size: 24px;
            }

            .page-hero .page-hero-desc {
                font-size: 14px;
            }

            .resource-filter .filter-inner {
                gap: 6px;
            }

            .resource-filter .filter-tag {
                padding: 5px 12px;
                font-size: 12px;
            }

            .resource-card .resource-card-img {
                height: 150px;
            }

            .cta-section .cta-inner {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }

            .cta-section .cta-text h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 640px) {
            .resource-grid {
                grid-template-columns: 1fr;
            }

            .featured-grid {
                grid-template-columns: 1fr;
            }

            .news-grid {
                grid-template-columns: 1fr;
            }

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

            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
                gap: 8px;
            }

            .resource-card .resource-card-img {
                height: 170px;
            }

            .resource-submit-form {
                padding: 20px;
            }

            .page-hero h1 {
                font-size: 22px;
            }

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

            .breadcrumb-bar {
                padding: 10px 0;
            }

            .breadcrumb-bar .breadcrumb-inner {
                font-size: 12px;
            }

            .featured-resource {
                padding: 16px 18px;
                flex-direction: column;
                gap: 10px;
            }

            .btn {
                padding: 9px 16px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .page-hero {
                padding: 32px 0 28px;
            }

            .page-hero h1 {
                font-size: 20px;
            }

            .page-hero .page-hero-desc {
                font-size: 13px;
                line-height: 1.7;
            }

            section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 20px;
            }

            .resource-card .resource-card-action {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

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

            .cta-section .cta-text h2 {
                font-size: 20px;
            }
        }