/* roulang page: index */
:root {
            --primary: #2E6B9E;
            --primary-dark: #1F4E70;
            --primary-light: #EAF2F8;
            --primary-lighter: #EEF4FA;
            --accent: #C49A5A;
            --accent-light: #F7F1E8;
            --bg: #F8FAFC;
            --bg-soft: #F5F7F9;
            --card: #FFFFFF;
            --border: #E3E9EF;
            --text: #2B3A47;
            --text-secondary: #6B7A86;
            --text-heading: #1E2A34;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(30, 42, 50, 0.04);
            --shadow-md: 0 4px 14px rgba(30, 42, 50, 0.06);
            --shadow-lg: 0 8px 20px rgba(30, 42, 50, 0.09);
            --transition: 0.2s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "微软雅黑", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1140px;
            --section-gap-lg: 80px;
            --section-gap-md: 48px;
            --section-gap-sm: 32px;
        }

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

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

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-family);
            color: var(--text-heading);
            margin: 0 0 0.5rem;
            line-height: 1.3;
            font-weight: 700;
        }
        h1 {
            font-size: 32px;
        }
        h2 {
            font-size: 26px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        p {
            margin: 0 0 1rem;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        .container-fluid {
            width: 100%;
            padding-left: 16px;
            padding-right: 16px;
        }

        section {
            padding-top: var(--section-gap-lg);
            padding-bottom: var(--section-gap-lg);
        }
        @media (max-width: 768px) {
            section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            h1 {
                font-size: 26px;
            }
            h2 {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            section {
                padding-top: 36px;
                padding-bottom: 36px;
            }
            h1 {
                font-size: 24px;
            }
        }

        /* ---------- Header / Nav（卡片化导航面板） ---------- */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            padding: 12px 16px 0;
            pointer-events: none;
        }
        .site-header .nav-card {
            pointer-events: auto;
            max-width: var(--container-max);
            margin: 0 auto;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 12px 20px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: box-shadow var(--transition);
        }
        .site-header .nav-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .nav-brand .brand-name {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-heading);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .nav-links .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            background: transparent;
            cursor: pointer;
            text-decoration: none;
        }
        .nav-links .nav-item i {
            font-size: 13px;
            color: var(--primary);
            opacity: 0.7;
        }
        .nav-links .nav-item:hover,
        .nav-links .nav-item:focus {
            background: var(--primary-lighter);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .nav-links .nav-item.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .nav-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: none;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-cta:hover,
        .nav-cta:focus {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .nav-cta:active {
            transform: translateY(0);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 20px;
            color: var(--text-heading);
            cursor: pointer;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: var(--primary-lighter);
            border-color: var(--primary);
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-links .nav-item {
                padding: 6px 10px;
                font-size: 13px;
            }
            .nav-links .nav-item span.nav-label {
                display: none;
            }
            .nav-links .nav-item i {
                font-size: 14px;
            }
            .nav-cta span {
                display: none;
            }
            .nav-cta {
                padding: 10px 14px;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                padding: 8px 10px 0;
                top: 8px;
            }
            .site-header .nav-card {
                padding: 10px 14px;
                flex-wrap: wrap;
                gap: 8px;
            }
            .nav-links {
                order: 3;
                width: 100%;
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-top: 8px;
                border-top: 1px solid var(--border);
                margin-top: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links .nav-item {
                padding: 10px 14px;
                font-size: 14px;
                border-radius: var(--radius-sm);
                border: 1px solid var(--border);
                background: var(--bg-soft);
                justify-content: flex-start;
                gap: 10px;
            }
            .nav-links .nav-item span.nav-label {
                display: inline;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-cta {
                margin-left: auto;
                padding: 8px 14px;
            }
            .nav-cta span {
                display: inline;
                font-size: 13px;
            }
        }

        /* ---------- Hero 全宽浅色顶栏 + 矮横幅 ---------- */
        .hero-section {
            padding-top: 48px;
            padding-bottom: 56px;
            background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary);
            opacity: 0.3;
        }
        .hero-banner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            padding: 32px 0 20px;
            flex-wrap: wrap;
        }
        .hero-banner .hero-text {
            flex: 1 1 55%;
            min-width: 280px;
        }
        .hero-banner .hero-text h1 {
            font-size: 34px;
            margin-bottom: 14px;
            color: var(--text-heading);
        }
        .hero-banner .hero-text .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 600px;
            margin-bottom: 22px;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 11px 24px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary-custom:active {
            transform: translateY(0);
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-custom:hover,
        .btn-outline-custom:focus {
            background: rgba(46, 107, 158, 0.05);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .hero-banner .hero-side {
            flex: 0 0 300px;
            min-width: 240px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .hero-side .hero-stat {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .hero-side .hero-stat:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .hero-side .hero-stat .stat-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 17px;
            flex-shrink: 0;
        }
        .hero-side .hero-stat .stat-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.2;
        }
        .hero-side .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }
        @media (max-width: 768px) {
            .hero-banner {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-banner .hero-text h1 {
                font-size: 26px;
            }
            .hero-banner .hero-side {
                flex: 1 1 auto;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .hero-side .hero-stat {
                flex: 1 1 45%;
                min-width: 150px;
            }
        }
        @media (max-width: 520px) {
            .hero-banner .hero-side {
                flex-direction: column;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                justify-content: center;
            }
        }

        /* ---------- 指标看板 ---------- */
        .metrics-dashboard {
            padding-top: 32px;
            padding-bottom: 40px;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
        }
        .metric-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: default;
        }
        .metric-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .metric-card .metric-value {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 6px;
        }
        .metric-card .metric-label {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.4;
        }
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .metric-card {
                padding: 14px 10px;
            }
            .metric-card .metric-value {
                font-size: 22px;
            }
        }

        /* ---------- 服务矩阵 ---------- */
        .services-section {
            background: var(--bg);
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 20px;
        }
        .service-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
            text-decoration: none;
            color: var(--text);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .service-card:hover,
        .service-card:focus {
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
            transform: translateY(-3px);
            color: var(--text);
        }
        .service-card:hover::before,
        .service-card:focus::before {
            opacity: 1;
        }
        .service-card .service-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 19px;
            flex-shrink: 0;
            transition: all var(--transition);
        }
        .service-card:hover .service-icon {
            background: var(--primary);
            color: #fff;
        }
        .service-card h3 {
            font-size: 17px;
            margin-bottom: 2px;
            color: var(--text-heading);
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .service-card .service-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 4px;
        }
        .service-card .service-link i {
            transition: transform var(--transition);
        }
        .service-card:hover .service-link i {
            transform: translateX(4px);
        }
        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .services-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .service-card {
                padding: 20px 16px;
            }
        }

        /* ---------- 深度正文区域 ---------- */
        .deep-content {
            background: var(--card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .deep-content .content-wrap {
            max-width: 780px;
            margin: 0 auto;
        }
        .deep-content .content-wrap p {
            font-size: 16px;
            line-height: 2;
            color: var(--text);
            margin-bottom: 20px;
            text-align: justify;
        }
        .deep-content .content-figure {
            margin: 28px 0;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .deep-content .content-figure img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-md);
        }
        @media (max-width: 768px) {
            .deep-content .content-wrap p {
                font-size: 15px;
                line-height: 1.9;
            }
        }

        /* ---------- 结果对比区 ---------- */
        .comparison-section {
            background: var(--bg-soft);
        }
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: stretch;
            margin-top: 20px;
        }
        .comparison-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .comparison-card.better {
            background: var(--primary-light);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .comparison-card h3 {
            font-size: 18px;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comparison-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .comparison-card ul li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            color: var(--text);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.7;
        }
        .comparison-card ul li:last-child {
            border-bottom: none;
        }
        .comparison-card ul li i {
            color: var(--text-secondary);
            font-size: 13px;
            margin-top: 5px;
            flex-shrink: 0;
        }
        .comparison-card.better ul li i {
            color: var(--primary);
        }
        .comparison-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            opacity: 0.6;
            padding: 0 8px;
        }
        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .comparison-arrow {
                transform: rotate(90deg);
                padding: 0;
            }
        }

        /* ---------- 新闻中心 ---------- */
        .news-section {
            background: var(--bg);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 28px;
            margin-top: 20px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-left: 4px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 18px 20px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-left-color: var(--accent);
            transform: translateX(2px);
        }
        .news-date {
            flex-shrink: 0;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 12px;
            font-weight: 600;
            text-align: center;
            line-height: 1.4;
            min-width: 58px;
        }
        .news-date .day {
            font-size: 20px;
            font-weight: 700;
            display: block;
        }
        .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-content h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .news-content h3 a {
            color: var(--text-heading);
        }
        .news-content h3 a:hover {
            color: var(--primary);
        }
        .news-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 6px;
        }
        .news-content .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-content .read-more i {
            transition: transform var(--transition);
        }
        .news-content .read-more:hover i {
            transform: translateX(4px);
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-sidebar .side-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }
        .news-sidebar .side-card h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-heading);
        }
        .news-sidebar .side-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .news-sidebar .side-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
            font-size: 13px;
            line-height: 1.6;
        }
        .news-sidebar .side-card ul li:last-child {
            border-bottom: none;
        }
        .news-sidebar .side-card ul li a {
            color: var(--text);
        }
        .news-sidebar .side-card ul li a:hover {
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .news-layout {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ---------- 数据趋势额外板块 ---------- */
        .trend-section {
            background: var(--card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .trend-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            margin-top: 20px;
        }
        .trend-card {
            background: var(--primary-lighter);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            text-align: center;
            transition: all var(--transition);
        }
        .trend-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .trend-card .trend-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
        }
        .trend-card .trend-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
            line-height: 1.5;
        }
        @media (max-width: 1024px) {
            .trend-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .trend-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* ---------- 品牌介绍 ---------- */
        .brand-section {
            background: var(--bg-soft);
            text-align: center;
        }
        .brand-section .brand-wrap {
            max-width: 680px;
            margin: 0 auto;
        }
        .brand-section .brand-logo-mark {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 30px;
            margin: 0 auto 18px;
            border: 1px solid var(--border);
        }
        .brand-section p {
            font-size: 15px;
            color: var(--text);
            line-height: 2;
            text-align: justify;
            margin-bottom: 0;
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item .faq-question {
            padding: 16px 22px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-heading);
            user-select: none;
            transition: background var(--transition);
        }
        .faq-item .faq-question:hover {
            background: var(--primary-lighter);
        }
        .faq-item .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 22px;
            background: rgba(234, 242, 248, 0.4);
        }
        .faq-item.active .faq-answer {
            max-height: 220px;
            padding: 14px 22px;
        }
        .faq-item .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* ---------- 转化表单 ---------- */
        .cta-form-section {
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg) 100%);
        }
        .cta-form-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            max-width: 880px;
            margin: 0 auto;
        }
        .cta-form-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }
        .cta-form-left {
            padding: 36px 32px;
            background: var(--primary);
            color: #fff;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .cta-form-left h2 {
            color: #fff;
            font-size: 22px;
            margin-bottom: 12px;
        }
        .cta-form-left p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .cta-form-left .trust-badges {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .cta-form-left .trust-badges span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.8);
            background: rgba(255, 255, 255, 0.12);
            border-radius: 20px;
            padding: 6px 12px;
        }
        .cta-form-right {
            padding: 36px 32px;
        }
        .cta-form-right .form-group {
            margin-bottom: 16px;
        }
        .cta-form-right label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
            display: block;
        }
        .cta-form-right input,
        .cta-form-right textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--bg-soft);
            font-size: 14px;
            transition: all var(--transition);
            color: var(--text);
        }
        .cta-form-right input:focus,
        .cta-form-right textarea:focus {
            border-color: var(--primary);
            background: #fff;
            outline: none;
            box-shadow: 0 0 0 3px rgba(46, 107, 158, 0.1);
        }
        .cta-form-right textarea {
            min-height: 80px;
            resize: vertical;
        }
        .cta-form-right .btn-submit {
            width: 100%;
            padding: 12px 20px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition);
        }
        .cta-form-right .btn-submit:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .cta-form-right .btn-submit:active {
            transform: translateY(0);
        }
        @media (max-width: 768px) {
            .cta-form-inner {
                grid-template-columns: 1fr;
            }
            .cta-form-left {
                padding: 28px 22px;
            }
            .cta-form-right {
                padding: 28px 22px;
            }
        }

        /* ---------- 数据安全承诺 ---------- */
        .security-section {
            background: var(--card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 20px;
        }
        .security-card {
            text-align: center;
            padding: 26px 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            background: var(--bg-soft);
            transition: all var(--transition);
        }
        .security-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .security-card .sec-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            margin: 0 auto 12px;
        }
        .security-card h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-heading);
        }
        .security-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        @media (max-width: 768px) {
            .security-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* ---------- 底部CTA ---------- */
        .bottom-cta {
            background: var(--text-heading);
            color: #fff;
            text-align: center;
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .bottom-cta h2 {
            color: #fff;
            font-size: 24px;
            margin-bottom: 10px;
        }
        .bottom-cta p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            max-width: 560px;
            margin: 0 auto 20px;
            line-height: 1.8;
        }
        .bottom-cta .btn-primary-custom {
            background: var(--accent);
            color: #fff;
            font-size: 15px;
        }
        .bottom-cta .btn-primary-custom:hover {
            background: #b08948;
            box-shadow: var(--shadow-lg);
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: #1E2A34;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-brand .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
            font-size: 13px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 2;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-brand {
                grid-column: span 2;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-brand {
                grid-column: span 1;
            }
        }

        /* ---------- 图片占位/资源位 ---------- */
        .img-placeholder {
            background: var(--bg-soft);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 13px;
            min-height: 120px;
            overflow: hidden;
        }
        .img-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-md);
        }

        /* ---------- 通用辅助 ---------- */
        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 600px;
            margin-bottom: 0;
        }
        .text-accent {
            color: var(--accent);
        }
        .mt-3 {
            margin-top: 1rem;
        }
        .mt-4 {
            margin-top: 1.5rem;
        }
        .mb-3 {
            margin-bottom: 1rem;
        }
        .mb-4 {
            margin-bottom: 1.5rem;
        }

/* roulang page: category1 */
:root {
            --primary: #2E6B9E;
            --primary-dark: #1F4E70;
            --primary-light: #EAF2F8;
            --primary-lighter: #EEF4FA;
            --accent: #C49A5A;
            --accent-light: #F7F1E8;
            --bg: #F8FAFC;
            --bg-soft: #F5F7F9;
            --card: #FFFFFF;
            --border: #E3E9EF;
            --text: #2B3A47;
            --text-secondary: #6B7A86;
            --text-heading: #1E2A34;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(30, 42, 50, 0.04);
            --shadow-md: 0 4px 14px rgba(30, 42, 50, 0.06);
            --shadow-lg: 0 8px 20px rgba(30, 42, 50, 0.09);
            --transition: 0.2s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "微软雅黑", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1140px;
            --section-gap-lg: 80px;
            --section-gap-md: 48px;
            --section-gap-sm: 32px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-family);
            font-size: 15px;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        .container-fluid {
            width: 100%;
            padding-left: 16px;
            padding-right: 16px;
        }
        section {
            padding-top: var(--section-gap-lg);
            padding-bottom: var(--section-gap-lg);
        }
        @media (max-width: 768px) {
            section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
        }
        @media (max-width: 520px) {
            section {
                padding-top: 36px;
                padding-bottom: 36px;
            }
        }

        /* ---------- Header / Nav（卡片化导航面板） ---------- */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            padding: 12px 16px 0;
            pointer-events: none;
        }
        .site-header .nav-card {
            pointer-events: auto;
            max-width: var(--container-max);
            margin: 0 auto;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 12px 20px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: box-shadow var(--transition);
        }
        .site-header .nav-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .nav-brand .brand-name {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-heading);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .nav-links .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            background: transparent;
            cursor: pointer;
            text-decoration: none;
        }
        .nav-links .nav-item i {
            font-size: 13px;
            color: var(--primary);
            opacity: 0.7;
        }
        .nav-links .nav-item:hover,
        .nav-links .nav-item:focus {
            background: var(--primary-lighter);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .nav-links .nav-item.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .nav-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: 1px solid var(--primary);
            transition: all var(--transition);
            text-decoration: none;
        }
        .nav-cta:hover,
        .nav-cta:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 18px;
            color: var(--text-heading);
            cursor: pointer;
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 4px;
            }
            .nav-links .nav-item {
                padding: 6px 10px;
                font-size: 13px;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                top: 10px;
                padding: 8px 10px 0;
            }
            .site-header .nav-card {
                flex-wrap: wrap;
                padding: 10px 14px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-top: 10px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links .nav-item {
                justify-content: flex-start;
                padding: 10px 14px;
                border: 1px solid var(--border);
                border-radius: var(--radius-sm);
            }
            .nav-cta {
                display: none;
            }
        }

        /* ---------- 分类页 Hero ---------- */
        .page-hero {
            padding-top: 40px;
            padding-bottom: 40px;
            background: linear-gradient(180deg, var(--primary-lighter) 0%, var(--bg) 100%);
        }
        .page-hero .hero-inner {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            box-shadow: var(--shadow-sm);
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 32px;
            align-items: start;
        }
        .page-hero .hero-content h1 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-heading);
            margin: 0 0 12px;
        }
        .page-hero .hero-content .hero-sub {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 20px;
            max-width: 520px;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .hero-stat {
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            text-align: left;
        }
        .hero-stat .stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .hero-stat .stat-label {
            font-size: 12px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .hero-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 200px;
            background: var(--bg-soft);
            border: 1px solid var(--border);
        }
        .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        @media (max-width: 768px) {
            .page-hero .hero-inner {
                grid-template-columns: 1fr;
                padding: 20px;
            }
            .page-hero .hero-content h1 {
                font-size: 24px;
            }
            .hero-stats {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .page-hero .hero-inner {
                padding: 16px;
            }
        }

        /* ---------- 数据列表条目 ---------- */
        .draw-list-section {
            background: var(--bg);
        }
        .draw-list-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 16px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .draw-list-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .draw-list-card .draw-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-soft);
            border: 1px solid var(--border);
        }
        .draw-list-card .draw-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .draw-list-card .draw-info {
            flex: 1;
        }
        .draw-list-card .draw-info h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-heading);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .draw-list-card .draw-info .draw-meta {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .draw-list-card .draw-info .draw-desc {
            font-size: 14px;
            color: var(--text);
            line-height: 1.7;
            margin: 0 0 8px;
        }
        .draw-list-card .draw-info .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .draw-list-card .draw-info .read-more i {
            transition: transform var(--transition);
        }
        .draw-list-card .draw-info .read-more:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 768px) {
            .draw-list-card {
                flex-direction: column;
                padding: 16px;
            }
            .draw-list-card .draw-thumb {
                width: 100%;
                height: 150px;
            }
        }

        /* ---------- 正文段落区 ---------- */
        .content-section {
            background: var(--primary-lighter);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .content-section .content-body {
            max-width: 800px;
            margin: 0 auto;
            font-size: 15px;
            line-height: 1.9;
            color: var(--text);
        }
        .content-section .content-body h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            margin: 0 0 16px;
        }
        .content-section .content-body p {
            margin-bottom: 14px;
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--bg);
        }
        .accordion-custom .accordion-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .accordion-custom .accordion-header {
            margin: 0;
        }
        .accordion-custom .accordion-button {
            background: var(--card);
            border: none;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-heading);
            box-shadow: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            transition: background var(--transition);
        }
        .accordion-custom .accordion-button:hover,
        .accordion-custom .accordion-button:focus {
            background: var(--primary-lighter);
        }
        .accordion-custom .accordion-button i {
            transition: transform var(--transition);
            color: var(--primary);
        }
        .accordion-custom .accordion-button[aria-expanded="true"] i {
            transform: rotate(45deg);
        }
        .accordion-custom .accordion-body {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .accordion-custom .accordion-body {
            background: var(--accent-light);
            margin: 0 12px 12px;
            border-radius: var(--radius-sm);
            padding: 14px 18px;
        }

        /* ---------- CTA ---------- */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            margin: 0 16px var(--section-gap-lg);
            padding: 40px;
            color: #fff;
        }
        .cta-section .cta-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
        }
        .cta-section h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
            line-height: 1.35;
        }
        .cta-section p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            line-height: 1.7;
        }
        .cta-section .cta-form input,
        .cta-section .cta-form textarea {
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-sm);
            padding: 10px 16px;
            color: #fff;
            width: 100%;
            margin-bottom: 10px;
            font-size: 14px;
            transition: all var(--transition);
        }
        .cta-section .cta-form input::placeholder,
        .cta-section .cta-form textarea::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .cta-section .cta-form input:focus,
        .cta-section .cta-form textarea:focus {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.6);
            outline: none;
        }
        .cta-section .cta-form .submit-btn {
            background: #fff;
            color: var(--primary-dark);
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-section .cta-form .submit-btn:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 24px 20px;
            }
            .cta-section .cta-inner {
                grid-template-columns: 1fr;
            }
        }

        /* ---------- 进程/统计对比 ---------- */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 24px;
        }
        .stats-grid .stat-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .stats-grid .stat-card .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .stats-grid .stat-card .stat-label {
            font-size: 12px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid .stat-card {
                padding: 14px 10px;
            }
            .stats-grid .stat-card .stat-num {
                font-size: 22px;
            }
        }

        /* ---------- 时间线 ---------- */
        .timeline-section {
            background: var(--bg);
        }
        .timeline-list {
            border-left: 3px solid var(--primary-light);
            padding-left: 24px;
            margin-left: 8px;
        }
        .timeline-item {
            position: relative;
            padding-bottom: 20px;
            margin-bottom: 8px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -31px;
            top: 6px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }
        .timeline-item .tl-date {
            font-size: 13px;
            color: var(--accent);
            font-weight: 700;
            margin-bottom: 4px;
        }
        .timeline-item .tl-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
        }
        .timeline-item .tl-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: #1E2A34;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            margin-top: 16px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin: 0;
        }
        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
        }
        .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: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2E6B9E;
            --primary-dark: #1F4E70;
            --primary-light: #EAF2F8;
            --primary-lighter: #EEF4FA;
            --accent: #C49A5A;
            --accent-light: #F7F1E8;
            --bg: #F8FAFC;
            --bg-soft: #F5F7F9;
            --card: #FFFFFF;
            --border: #E3E9EF;
            --text: #2B3A47;
            --text-secondary: #6B7A86;
            --text-heading: #1E2A34;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(30, 42, 50, 0.04);
            --shadow-md: 0 4px 14px rgba(30, 42, 50, 0.06);
            --shadow-lg: 0 8px 20px rgba(30, 42, 50, 0.09);
            --transition: 0.2s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "微软雅黑", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1140px;
            --section-gap-lg: 72px;
            --section-gap-md: 48px;
            --section-gap-sm: 32px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-family);
            font-size: 15px;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        .container-narrow {
            max-width: 820px;
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        section {
            padding-top: var(--section-gap-lg);
            padding-bottom: var(--section-gap-lg);
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 680px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 28px;
        }
        .section-header .tag-label {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .text-accent {
            color: var(--accent);
        }
        /* ---------- Header / Nav ---------- */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            padding: 12px 16px 0;
            pointer-events: none;
        }
        .site-header .nav-card {
            pointer-events: auto;
            max-width: var(--container-max);
            margin: 0 auto;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 12px 20px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: box-shadow var(--transition);
        }
        .site-header .nav-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .nav-brand .brand-name {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-heading);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .nav-links .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 13px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            background: transparent;
            cursor: pointer;
            text-decoration: none;
        }
        .nav-links .nav-item i {
            font-size: 12px;
            color: var(--primary);
            opacity: 0.7;
        }
        .nav-links .nav-item:hover,
        .nav-links .nav-item:focus {
            background: var(--primary-lighter);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .nav-links .nav-item.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
            font-weight: 600;
        }
        .nav-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-cta:hover,
        .nav-cta:focus {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        .nav-toggle {
            display: none;
            background: var(--primary-light);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 14px;
            font-size: 16px;
            color: var(--primary);
            cursor: pointer;
            transition: background var(--transition);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: var(--primary-lighter);
        }
        /* ---------- Breadcrumb ---------- */
        .breadcrumb-wrap {
            padding: 24px 0 0;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-custom li + li::before {
            content: "/";
            color: var(--border);
            font-size: 12px;
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom .current {
            color: var(--primary);
            font-weight: 500;
        }
        /* ---------- Hero ---------- */
        .hero-category {
            padding: 40px 0 48px;
        }
        .hero-category .hero-card {
            background: linear-gradient(135deg, var(--primary-lighter) 0%, var(--card) 55%, var(--card) 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 40px 36px;
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }
        .hero-category .hero-card::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(46, 107, 158, 0.05);
            z-index: 0;
        }
        .hero-category .hero-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.2fr 0.9fr;
            gap: 36px;
            align-items: center;
        }
        .hero-category .hero-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .hero-category .hero-title span {
            color: var(--primary);
        }
        .hero-category .hero-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .hero-category .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }
        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            background: var(--card);
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }
        .btn-secondary-custom:hover,
        .btn-secondary-custom:focus {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .hero-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4/3;
            background: var(--bg-soft);
        }
        .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
            margin-top: 28px;
            position: relative;
            z-index: 1;
        }
        .stat-mini-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            text-align: center;
            transition: all var(--transition);
        }
        .stat-mini-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--primary);
        }
        .stat-mini-card .stat-number {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 4px;
        }
        .stat-mini-card .stat-label {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.4;
        }
        /* ---------- Cards / Lists ---------- */
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .feature-card .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .feature-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .feature-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .list-card-horizontal {
            display: flex;
            gap: 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            margin-bottom: 16px;
            align-items: flex-start;
        }
        .list-card-horizontal:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .list-card-horizontal .thumb {
            width: 180px;
            height: 120px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-soft);
        }
        .list-card-horizontal .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .list-card-horizontal .content {
            flex: 1;
            min-width: 0;
        }
        .list-card-horizontal .content .date-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 20px;
            margin-bottom: 8px;
        }
        .list-card-horizontal .content h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .list-card-horizontal .content p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .list-card-horizontal .content .read-more {
            font-size: 13px;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .list-card-horizontal .content .read-more:hover {
            color: var(--primary-dark);
            gap: 10px;
        }
        .list-card-horizontal .content .read-more i {
            font-size: 11px;
        }
        /* ---------- Deep Content ---------- */
        .deep-content {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
        }
        .deep-content h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .deep-content p {
            font-size: 15px;
            color: var(--text);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .deep-content .inline-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
            aspect-ratio: 16/7;
            background: var(--bg-soft);
        }
        .deep-content .inline-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        /* ---------- Timeline / Special Layout ---------- */
        .timeline-mini {
            position: relative;
            padding-left: 28px;
        }
        .timeline-mini::before {
            content: "";
            position: absolute;
            left: 8px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: var(--primary-light);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding-bottom: 20px;
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: -24px;
            top: 7px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid var(--card);
            box-shadow: 0 0 0 2px var(--primary-light);
        }
        .timeline-item .timeline-date {
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 4px;
        }
        .timeline-item .timeline-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 4px;
        }
        .timeline-item .timeline-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        /* ---------- FAQ ---------- */
        .faq-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-card:hover {
            border-color: var(--primary);
        }
        .faq-card .faq-question {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            gap: 16px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            user-select: none;
            transition: background var(--transition);
        }
        .faq-card .faq-question:hover {
            background: var(--primary-lighter);
        }
        .faq-card .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform var(--transition);
        }
        .faq-card.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-card .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }
        .faq-card.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-card .faq-answer p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            padding-top: 4px;
            border-top: 1px solid var(--border);
        }
        /* ---------- Form / CTA ---------- */
        .cta-form-section {
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-lighter) 50%, var(--card) 100%);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }
        .cta-form-section .cta-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
        }
        .cta-form-section .cta-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .form-control-custom {
            display: block;
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--bg-soft);
            color: var(--text);
            font-size: 14px;
            transition: all var(--transition);
            margin-bottom: 14px;
        }
        .form-control-custom:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--card);
            box-shadow: 0 0 0 3px rgba(46, 107, 158, 0.1);
        }
        .form-control-custom::placeholder {
            color: #9AABBA;
        }
        textarea.form-control-custom {
            resize: vertical;
            min-height: 90px;
        }
        .trust-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 12px;
        }
        .trust-badge i {
            color: var(--accent);
        }
        /* ---------- Footer ---------- */
        .site-footer {
            background: #1E2A34;
            padding: 48px 0 28px;
            margin-top: 64px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .site-footer .footer-brand p {
            font-size: 13px;
            color: #A0B0BE;
            line-height: 1.7;
            margin: 0;
        }
        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .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: #A0B0BE;
            font-size: 13px;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: #8799A7;
        }
        .site-footer .footer-bottom a {
            color: #A0B0BE;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        /* ---------- Responsive ---------- */
        @media (max-width: 1024px) {
            .hero-category .hero-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hero-stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 16px;
                right: 16px;
                background: var(--card);
                border: 1px solid var(--border);
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-lg);
                padding: 12px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                z-index: 200;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links .nav-item {
                padding: 12px 16px;
                font-size: 14px;
                border-radius: var(--radius-sm);
                white-space: normal;
            }
            .nav-cta {
                display: none;
            }
            .site-header .nav-card {
                padding: 10px 16px;
                position: relative;
            }
            section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .hero-category .hero-card {
                padding: 24px 20px;
            }
            .hero-category .hero-title {
                font-size: 24px;
            }
            .list-card-horizontal {
                flex-direction: column;
                gap: 14px;
            }
            .list-card-horizontal .thumb {
                width: 100%;
                height: 160px;
            }
            .deep-content {
                padding: 24px 20px;
            }
            .cta-form-section {
                padding: 24px 20px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .hero-stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-mini-card {
                padding: 12px 10px;
            }
            .stat-mini-card .stat-number {
                font-size: 18px;
            }
            .section-title {
                font-size: 20px;
            }
            .hero-category .hero-title {
                font-size: 20px;
            }
            .container {
                padding-left: 12px;
                padding-right: 12px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2E6B9E;
            --primary-dark: #1F4E70;
            --primary-light: #EAF2F8;
            --primary-lighter: #EEF4FA;
            --accent: #C49A5A;
            --accent-light: #F7F1E8;
            --bg: #F8FAFC;
            --bg-soft: #F5F7F9;
            --card: #FFFFFF;
            --border: #E3E9EF;
            --text: #2B3A47;
            --text-secondary: #6B7A86;
            --text-heading: #1E2A34;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(30, 42, 50, 0.04);
            --shadow-md: 0 4px 14px rgba(30, 42, 50, 0.06);
            --shadow-lg: 0 8px 20px rgba(30, 42, 50, 0.09);
            --transition: 0.2s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "微软雅黑", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1140px;
            --section-gap-lg: 80px;
            --section-gap-md: 48px;
            --section-gap-sm: 32px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-family);
            font-size: 15px;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        section {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        @media (min-width: 768px) {
            section {
                padding-top: 64px;
                padding-bottom: 64px;
            }
        }
        @media (min-width: 1024px) {
            section {
                padding-top: 80px;
                padding-bottom: 80px;
            }
        }
        /* ---------- Header / Nav ---------- */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            padding: 12px 16px 0;
            pointer-events: none;
        }
        .site-header .nav-card {
            pointer-events: auto;
            max-width: var(--container-max);
            margin: 0 auto;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 12px 20px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: box-shadow var(--transition);
        }
        .site-header .nav-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: var(--text-heading);
        }
        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .nav-brand .brand-name {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-heading);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .nav-links .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            background: transparent;
            cursor: pointer;
            text-decoration: none;
        }
        .nav-links .nav-item i {
            font-size: 12px;
            color: var(--primary);
            opacity: 0.7;
        }
        .nav-links .nav-item:hover,
        .nav-links .nav-item:focus {
            background: var(--primary-lighter);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .nav-links .nav-item.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .nav-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: none;
            transition: background var(--transition);
            text-decoration: none;
        }
        .nav-cta:hover,
        .nav-cta:focus {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text);
            padding: 8px 12px;
            font-size: 18px;
            cursor: pointer;
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary-lighter);
            border-color: var(--primary);
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 3px;
            }
            .nav-links .nav-item {
                padding: 5px 8px;
                font-size: 12px;
            }
            .nav-links .nav-item .nav-label {
                font-size: 12px;
            }
            .nav-cta span {
                display: none;
            }
            .nav-cta {
                padding: 9px 14px;
            }
        }
        @media (max-width: 768px) {
            .site-header .nav-card {
                flex-wrap: wrap;
                padding: 10px 14px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                margin-top: 8px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links .nav-item {
                padding: 10px 14px;
                font-size: 14px;
                border: 1px solid var(--border);
                border-radius: var(--radius-sm);
                width: 100%;
                justify-content: flex-start;
            }
            .nav-links .nav-item .nav-label {
                font-size: 14px;
            }
            .nav-cta {
                margin-left: auto;
            }
        }
        /* ---------- Buttons ---------- */
        .btn-main {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: none;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-main:hover,
        .btn-main:focus {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-main:active {
            transform: translateY(1px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            border: 1px solid var(--primary);
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-outline:hover,
        .btn-outline:focus {
            background: var(--primary-lighter);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        /* ---------- Hero ---------- */
        .hero-inner {
            background: linear-gradient(135deg, #EAF2F8 0%, #F7FAFC 50%, #EEF4FA 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 28px;
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }
        .hero-inner::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(196, 154, 90, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-inner .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 20px;
            margin-bottom: 16px;
            border: 1px solid rgba(196, 154, 90, 0.25);
        }
        .hero-inner h1 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .hero-inner .hero-sub {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.8;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
            gap: 14px;
            margin-top: 28px;
        }
        .hero-stat-card {
            background: rgba(255, 255, 255, 0.75);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 14px;
            text-align: center;
            backdrop-filter: blur(4px);
            transition: all var(--transition);
        }
        .hero-stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .hero-stat-card .stat-value {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-stat-card .stat-label {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        .hero-image-placeholder {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--bg-soft);
            min-height: 180px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 13px;
        }
        .hero-image-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        /* ---------- Section Titles ---------- */
        .section-head {
            margin-bottom: 32px;
        }
        .section-head .section-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .section-head h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .section-head p {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 680px;
            margin-bottom: 0;
        }
        /* ---------- Timeline ---------- */
        .timeline-wrap {
            position: relative;
            padding-left: 32px;
        }
        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary-light), var(--primary));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 20px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -27px;
            top: 18px;
            width: 12px;
            height: 12px;
            background: var(--primary);
            border: 3px solid #fff;
            border-radius: 50%;
            box-shadow: 0 0 0 3px var(--primary-light);
            z-index: 2;
        }
        .timeline-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .timeline-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }
        .timeline-date {
            flex-shrink: 0;
            min-width: 76px;
            text-align: center;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            padding: 8px 6px;
        }
        .timeline-date .date-day {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }
        .timeline-date .date-month {
            font-size: 11px;
            color: var(--text-secondary);
        }
        .timeline-content {
            flex: 1;
            min-width: 0;
        }
        .timeline-content h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .timeline-content p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .timeline-content .read-more {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }
        .timeline-content .read-more i {
            font-size: 11px;
            transition: transform var(--transition);
        }
        .timeline-content .read-more:hover {
            color: var(--primary-dark);
        }
        .timeline-content .read-more:hover i {
            transform: translateX(4px);
        }
        .timeline-thumb {
            flex-shrink: 0;
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--bg-soft);
        }
        .timeline-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        /* ---------- Trend Chart Tags ---------- */
        .trend-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 10px;
        }
        .trend-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-soft);
            color: var(--text-secondary);
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 16px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .trend-tag:hover {
            background: var(--primary-lighter);
            border-color: var(--primary);
            color: var(--primary);
        }
        /* ---------- Mini Chart Bars ---------- */
        .mini-chart {
            display: flex;
            align-items: flex-end;
            gap: 4px;
            height: 44px;
            margin-top: 8px;
        }
        .mini-chart .bar {
            flex: 1;
            min-width: 4px;
            background: var(--primary-light);
            border-radius: 2px 2px 0 0;
            transition: background var(--transition);
            position: relative;
            height: 100%;
            max-height: 44px;
        }
        .mini-chart .bar.highlight {
            background: var(--accent);
        }
        .mini-chart .bar:hover {
            background: var(--primary);
        }
        .mini-chart .bar.highlight:hover {
            background: var(--accent);
        }
        /* ---------- Prose Card ---------- */
        .prose-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
        }
        .prose-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 12px;
        }
        .prose-card p {
            font-size: 14px;
            color: var(--text);
            line-height: 1.9;
            margin-bottom: 12px;
        }
        .prose-card p:last-child {
            margin-bottom: 0;
        }
        /* ---------- Feature Cards ---------- */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }
        .feature-card .feature-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 12px;
        }
        .feature-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
        }
        .feature-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* ---------- FAQ ---------- */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: var(--card);
        }
        .faq-accordion .accordion-button {
            background: #fff;
            color: var(--text-heading);
            font-weight: 600;
            font-size: 15px;
            padding: 16px 20px;
            border-radius: var(--radius-md) !important;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-lighter);
            color: var(--primary-dark);
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(46, 107, 158, 0.2);
            border-color: var(--primary);
        }
        .faq-accordion .accordion-button::after {
            content: '\f067';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            background-image: none;
            color: var(--primary);
            font-size: 14px;
            transition: transform 0.2s ease;
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            content: '\f068';
            transform: rotate(0deg);
            background-image: none;
            color: var(--primary-dark);
        }
        .faq-accordion .accordion-body {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding: 14px 20px;
            background: #fff;
        }
        /* ---------- CTA Form ---------- */
        .cta-panel {
            background: linear-gradient(135deg, #EAF2F8 0%, #EEF4FA 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .cta-panel .cta-left {
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .cta-panel .cta-left h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
        }
        .cta-panel .cta-left p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .cta-panel .cta-form {
            padding: 32px 28px;
            background: rgba(255, 255, 255, 0.8);
            border-left: 1px solid var(--border);
        }
        .cta-form .form-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-heading);
        }
        .cta-form .form-control,
        .cta-form .form-select {
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            padding: 10px 14px;
            color: var(--text);
            transition: all var(--transition);
        }
        .cta-form .form-control:focus,
        .cta-form .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 158, 0.15);
            background: #fff;
        }
        .cta-form .btn-main {
            width: 100%;
            justify-content: center;
        }
        /* ---------- Data Table ---------- */
        .table-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            overflow-x: auto;
        }
        .table-card table {
            font-size: 13px;
            color: var(--text);
            margin-bottom: 0;
        }
        .table-card thead th {
            background: var(--primary-light);
            color: var(--text-heading);
            font-weight: 600;
            border-bottom: 2px solid var(--primary);
            padding: 10px 12px;
            white-space: nowrap;
        }
        .table-card tbody td {
            padding: 9px 12px;
            border-bottom: 1px solid var(--border);
            white-space: nowrap;
        }
        .table-card tbody tr:hover td {
            background: var(--primary-lighter);
        }
        .table-card .badge-soft {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 500;
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 12px;
        }
        .table-card .badge-warm {
            background: var(--accent-light);
            color: var(--accent);
            font-weight: 500;
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 12px;
        }
        /* ---------- Footer ---------- */
        .site-footer {
            background: #1E2A34;
            color: #C7D2DA;
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .site-footer .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: #9FB0BC;
            margin-bottom: 0;
        }
        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }
        .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: #C7D2DA;
            font-size: 13px;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: #8FA0AC;
        }
        .site-footer .footer-bottom p {
            margin-bottom: 6px;
        }
        .site-footer .footer-bottom a {
            color: #C7D2DA;
            font-size: 12px;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        /* ---------- Responsive ---------- */
        @media (max-width: 768px) {
            .hero-inner {
                padding: 24px 16px;
            }
            .hero-inner h1 {
                font-size: 22px;
            }
            .hero-inner .hero-sub {
                font-size: 14px;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .hero-stat-card .stat-value {
                font-size: 20px;
            }
            .timeline-wrap {
                padding-left: 24px;
            }
            .timeline-wrap::before {
                left: 7px;
            }
            .timeline-item {
                padding-left: 14px;
            }
            .timeline-item::before {
                left: -22px;
                width: 10px;
                height: 10px;
                top: 16px;
            }
            .timeline-card {
                flex-direction: column;
                gap: 10px;
                padding: 14px 14px;
            }
            .timeline-date {
                min-width: auto;
                display: inline-flex;
                gap: 6px;
                align-items: baseline;
                padding: 4px 10px;
            }
            .timeline-date .date-day {
                font-size: 15px;
            }
            .timeline-thumb {
                width: 100%;
                height: 120px;
            }
            .cta-panel .cta-form {
                border-left: none;
                border-top: 1px solid var(--border);
            }
            .section-head h2 {
                font-size: 19px;
            }
        }
        @media (max-width: 520px) {
            .hero-inner h1 {
                font-size: 19px;
            }
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .hero-inner .hero-badge {
                font-size: 11px;
            }
            .timeline-card {
                padding: 12px 10px;
            }
            .timeline-content h3 {
                font-size: 14px;
            }
            .timeline-content p {
                font-size: 12px;
            }
            .prose-card {
                padding: 18px 14px;
            }
            .prose-card h3 {
                font-size: 16px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .cta-panel .cta-left,
            .cta-panel .cta-form {
                padding: 20px 16px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2E6B9E;
            --primary-dark: #1F4E70;
            --primary-light: #EAF2F8;
            --primary-lighter: #EEF4FA;
            --accent: #C49A5A;
            --accent-light: #F7F1E8;
            --bg: #F8FAFC;
            --bg-soft: #F5F7F9;
            --card: #FFFFFF;
            --border: #E3E9EF;
            --text: #2B3A47;
            --text-secondary: #6B7A86;
            --text-heading: #1E2A34;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(30, 42, 50, 0.04);
            --shadow-md: 0 4px 14px rgba(30, 42, 50, 0.06);
            --shadow-lg: 0 8px 20px rgba(30, 42, 50, 0.09);
            --transition: 0.2s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "微软雅黑", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1140px;
            --section-gap-lg: 80px;
            --section-gap-md: 48px;
            --section-gap-sm: 32px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-family);
            font-size: 15px;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        .container-fluid {
            width: 100%;
            padding-left: 16px;
            padding-right: 16px;
        }
        section {
            padding-top: var(--section-gap-lg);
            padding-bottom: var(--section-gap-lg);
        }
        @media (max-width: 768px) {
            section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
        }
        @media (max-width: 520px) {
            section {
                padding-top: 36px;
                padding-bottom: 36px;
            }
        }

        /* ---------- Header / Nav（卡片化导航面板） ---------- */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            padding: 12px 16px 0;
            pointer-events: none;
        }
        .site-header .nav-card {
            pointer-events: auto;
            max-width: var(--container-max);
            margin: 0 auto;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 12px 20px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: box-shadow var(--transition);
        }
        .site-header .nav-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }
        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .nav-brand .brand-name {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-heading);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .nav-links .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            background: transparent;
            cursor: pointer;
            text-decoration: none;
        }
        .nav-links .nav-item i {
            font-size: 13px;
            color: var(--primary);
            opacity: 0.7;
        }
        .nav-links .nav-item:hover,
        .nav-links .nav-item:focus {
            background: var(--primary-lighter);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .nav-links .nav-item.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .nav-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
            border: 1px solid var(--primary);
        }
        .nav-cta:hover,
        .nav-cta:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 42px;
            height: 42px;
            font-size: 18px;
            color: var(--primary);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: var(--primary-lighter);
            border-color: var(--primary);
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 3px;
            }
            .nav-links .nav-item {
                padding: 6px 10px;
                font-size: 13px;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
        }
        @media (max-width: 900px) {
            .nav-toggle {
                display: inline-flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                margin-top: 8px;
                background: var(--card);
                border: 1px solid var(--border);
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-lg);
                padding: 12px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                z-index: 1100;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links .nav-item {
                width: 100%;
                justify-content: flex-start;
                padding: 10px 14px;
                border-radius: var(--radius-sm);
                font-size: 14px;
                border: 1px solid transparent;
            }
            .nav-cta {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .site-header {
                top: 8px;
                padding: 8px 12px 0;
            }
            .site-header .nav-card {
                padding: 10px 14px;
                border-radius: var(--radius-md);
                gap: 10px;
            }
            .nav-brand .brand-name {
                font-size: 16px;
            }
            .nav-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }
        }

        /* ---------- 页面特有 Breadcrumb ---------- */
        .breadcrumb-area {
            padding-top: 36px;
            padding-bottom: 0;
        }
        .breadcrumb-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition);
        }
        .breadcrumb-bar a:hover {
            color: var(--primary);
        }
        .breadcrumb-bar .sep {
            color: #B9C4CE;
            font-size: 11px;
        }
        .breadcrumb-bar .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* ---------- Hero（分类页窄版） ---------- */
        .page-hero {
            padding-top: 32px;
            padding-bottom: 48px;
            background: linear-gradient(135deg, var(--primary-lighter) 0%, #F8FAFC 55%, #FFFFFF 100%);
            border-bottom: 1px solid var(--border);
        }
        .hero-grid {
            display: flex;
            align-items: flex-start;
            gap: 48px;
            flex-wrap: wrap;
        }
        .hero-text {
            flex: 1 1 380px;
            min-width: 280px;
        }
        .hero-text h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-heading);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .hero-text h1 .highlight {
            color: var(--primary);
        }
        .hero-text .lead {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 640px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-light);
            color: var(--accent);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 16px;
            border: 1px solid #EAD9C0;
        }
        .hero-stats {
            flex: 0 0 320px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            align-self: center;
        }
        .hero-stat {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition);
        }
        .hero-stat:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .hero-stat .stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            display: block;
            margin-bottom: 6px;
        }
        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.4;
        }
        .hero-cover {
            margin-top: 28px;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            max-height: 320px;
            width: 100%;
            object-fit: cover;
        }
        @media (max-width: 900px) {
            .hero-grid {
                flex-direction: column;
                gap: 24px;
            }
            .hero-stats {
                flex: 1 1 auto;
                width: 100%;
            }
            .page-hero h1 {
                font-size: 26px;
            }
        }
        @media (max-width: 520px) {
            .hero-stats {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .hero-stat {
                padding: 12px 10px;
            }
            .hero-stat .stat-num {
                font-size: 22px;
            }
            .page-hero h1 {
                font-size: 22px;
            }
        }

        /* ---------- Section 通用 ---------- */
        .section-title {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 720px;
        }
        .section-header {
            margin-bottom: 28px;
        }

        /* ---------- 规律要点速览（卡片组） ---------- */
        .quick-pattern-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .quick-pattern-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .quick-pattern-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .quick-pattern-card .qp-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin: 0 auto 14px;
            transition: all var(--transition);
        }
        .quick-pattern-card:hover .qp-icon {
            background: var(--primary);
            color: #fff;
        }
        .quick-pattern-card .qp-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
        }
        .quick-pattern-card .qp-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        @media (max-width: 900px) {
            .quick-pattern-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }
        @media (max-width: 520px) {
            .quick-pattern-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
        }

        /* ---------- 正文段落区 ---------- */
        .article-block {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            max-width: 860px;
            margin: 0 auto;
        }
        .article-block h2 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 20px;
            line-height: 1.4;
        }
        .article-block p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text);
            margin-bottom: 18px;
            text-align: justify;
        }
        .article-block p:last-child {
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .article-block {
                padding: 24px 20px;
            }
        }

        /* ---------- FAQ 手风琴（分类页4核心） ---------- */
        .faq-section {
            background: var(--bg);
        }
        .faq-grid {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .faq-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-head:hover {
            background: var(--primary-lighter);
        }
        .faq-question {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.5;
            margin: 0;
            flex: 1;
        }
        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: all var(--transition);
        }
        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }
        .faq-item.active .faq-body {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        .faq-answer {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            padding-top: 4px;
            border-top: 1px dashed var(--border);
            padding-top: 14px;
        }

        /* ---------- 规律条目列表卡片 ---------- */
        .pattern-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .pattern-item {
            display: flex;
            align-items: stretch;
            gap: 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .pattern-item:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .pattern-thumb {
            flex: 0 0 180px;
            height: 120px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-soft);
            border: 1px solid var(--border);
        }
        .pattern-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .pattern-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }
        .pattern-content .pc-top {
            flex: 1;
        }
        .pattern-content .pc-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .pattern-content .pc-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .pattern-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .pattern-meta .meta-date {
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 500;
            font-size: 12px;
        }
        .pattern-meta .read-more {
            margin-left: auto;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
            text-decoration: none;
        }
        .pattern-meta .read-more i {
            transition: transform var(--transition);
        }
        .pattern-meta .read-more:hover {
            color: var(--primary-dark);
        }
        .pattern-meta .read-more:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 768px) {
            .pattern-item {
                flex-direction: column;
                gap: 14px;
                padding: 14px;
            }
            .pattern-thumb {
                flex: 0 0 auto;
                width: 100%;
                height: 180px;
            }
            .pattern-meta .read-more {
                margin-left: 0;
            }
        }

        /* ---------- 速查表 ---------- */
        .quick-table-wrap {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            max-width: 860px;
            margin: 0 auto;
        }
        .quick-table-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }
        .quick-table-table th {
            background: var(--primary-light);
            color: var(--text-heading);
            font-weight: 600;
            padding: 14px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            white-space: nowrap;
        }
        .quick-table-table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--text);
            vertical-align: middle;
        }
        .quick-table-table tbody tr:hover {
            background: var(--bg-soft);
        }
        .quick-table-table tbody tr:last-child td {
            border-bottom: none;
        }
        .tag-badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background: var(--primary-lighter);
            color: var(--primary);
            border: 1px solid #D5E3EE;
        }
        .tag-badge.accent {
            background: var(--accent-light);
            color: #8A6A3A;
            border-color: #EAD9C0;
        }
        @media (max-width: 768px) {
            .quick-table-wrap {
                overflow-x: auto;
            }
            .quick-table-table {
                min-width: 600px;
            }
        }

        /* ---------- 使用提示卡 ---------- */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .tip-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            text-align: center;
        }
        .tip-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }
        .tip-card .tip-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin: 0 auto 12px;
        }
        .tip-card .tip-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
        }
        .tip-card .tip-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* ---------- CTA 区 ---------- */
        .cta-section {
            background: linear-gradient(120deg, var(--primary-light) 0%, #F5F9FC 45%, #FFFFFF 100%);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .cta-panel {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-md);
            display: flex;
            gap: 36px;
            align-items: center;
            flex-wrap: wrap;
        }
        .cta-left {
            flex: 1 1 320px;
            min-width: 280px;
        }
        .cta-left h2 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .cta-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .cta-right {
            flex: 1 1 360px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cta-form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .cta-form-group label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-heading);
        }
        .cta-form-group input,
        .cta-form-group textarea,
        .cta-form-group select {
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text);
            transition: all var(--transition);
            width: 100%;
        }
        .cta-form-group input:focus,
        .cta-form-group textarea:focus,
        .cta-form-group select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(46, 107, 158, 0.12);
            background: #fff;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: all var(--transition);
            width: 100%;
            margin-top: 4px;
        }
        .cta-btn:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .cta-btn:active {
            transform: translateY(0);
        }
        @media (max-width: 900px) {
            .cta-panel {
                flex-direction: column;
                padding: 28px 22px;
                gap: 24px;
            }
        }

        /* ---------- 相关分类链接 ---------- */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }
        .related-card {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            text-decoration: none;
            color: var(--text);
        }
        .related-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateY(-2px);
            color: var(--text);
        }
        .related-card .rc-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }
        .related-card .rc-text .rc-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.3;
        }
        .related-card .rc-text .rc-desc {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 2px;
        }
        @media (max-width: 768px) {
            .related-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: #1E2A34;
            color: #B8C4CE;
            padding-top: 56px;
            padding-bottom: 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: #9AAAB6;
            max-width: 340px;
            margin-bottom: 0;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #9AAAB6;
            text-decoration: none;
            font-size: 13px;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: #FFFFFF;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #8A9AA8;
        }
        .footer-bottom p {
            margin: 0;
            line-height: 1.6;
        }
        .footer-bottom a {
            color: #B8C4CE;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: #FFFFFF;
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer {
                padding-top: 40px;
            }
        }

        /* ---------- 辅助工具类 ---------- */
        .text-primary-custom {
            color: var(--primary) !important;
        }
        .text-accent-custom {
            color: var(--accent) !important;
        }
        .bg-primary-soft {
            background: var(--primary-lighter);
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-0 {
            margin-top: 0;
        }
        .fw-600 {
            font-weight: 600;
        }
        .fs-sm {
            font-size: 13px;
        }
        .text-secondary-custom {
            color: var(--text-secondary) !important;
        }

/* roulang page: category5 */
:root {
            --primary: #2E6B9E;
            --primary-dark: #1F4E70;
            --primary-light: #EAF2F8;
            --primary-lighter: #EEF4FA;
            --accent: #C49A5A;
            --accent-light: #F7F1E8;
            --bg: #F8FAFC;
            --bg-soft: #F5F7F9;
            --card: #FFFFFF;
            --border: #E3E9EF;
            --text: #2B3A47;
            --text-secondary: #6B7A86;
            --text-heading: #1E2A34;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(30, 42, 50, 0.04);
            --shadow-md: 0 4px 14px rgba(30, 42, 50, 0.06);
            --shadow-lg: 0 8px 20px rgba(30, 42, 50, 0.09);
            --transition: 0.2s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "微软雅黑", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1140px;
            --section-gap-lg: 80px;
            --section-gap-md: 48px;
            --section-gap-sm: 32px;
        }

        * {
            box-sizing: border-box;
        }

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

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

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

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

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        section {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-heading);
            margin-bottom: 16px;
        }

        h2 {
            font-size: 26px;
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-heading);
            margin-bottom: 16px;
        }

        h3 {
            font-size: 19px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-heading);
            margin-bottom: 12px;
        }

        p {
            margin-bottom: 16px;
            color: var(--text);
        }

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

        .text-heading {
            color: var(--text-heading) !important;
        }

        .text-primary-custom {
            color: var(--primary) !important;
        }

        .text-accent {
            color: var(--accent) !important;
        }

        .bg-primary-light {
            background-color: var(--primary-light) !important;
        }

        .bg-primary-lighter {
            background-color: var(--primary-lighter) !important;
        }

        .bg-accent-light {
            background-color: var(--accent-light) !important;
        }

        .bg-card {
            background-color: var(--card) !important;
        }

        .bg-soft {
            background-color: var(--bg-soft) !important;
        }

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            padding: 12px 16px 0;
            pointer-events: none;
        }

        .site-header .nav-card {
            pointer-events: auto;
            max-width: var(--container-max);
            margin: 0 auto;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 12px 20px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: box-shadow var(--transition);
        }

        .site-header .nav-card:hover {
            box-shadow: var(--shadow-lg);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }

        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        .nav-brand .brand-name {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-heading);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            color: var(--text);
            cursor: pointer;
            transition: all var(--transition);
            font-size: 16px;
        }

        .nav-toggle:hover {
            background: var(--primary-lighter);
            border-color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .nav-links .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            background: transparent;
            cursor: pointer;
            text-decoration: none;
        }

        .nav-links .nav-item i {
            font-size: 13px;
            color: var(--primary);
            opacity: 0.7;
        }

        .nav-links .nav-item:hover,
        .nav-links .nav-item:focus {
            background: var(--primary-lighter);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        .nav-links .nav-item.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        .nav-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: none;
        }

        .nav-cta:hover,
        .nav-cta:focus {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .nav-cta i {
            font-size: 13px;
        }

        /* ---------- Buttons ---------- */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .btn-primary-custom:active {
            transform: translateY(1px);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            background: var(--card);
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-outline-custom:hover,
        .btn-outline-custom:focus {
            background: rgba(46, 107, 158, 0.05);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }

        .btn-link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            transition: all var(--transition);
            cursor: pointer;
        }

        .btn-link-arrow i {
            font-size: 13px;
            transition: transform var(--transition);
        }

        .btn-link-arrow:hover,
        .btn-link-arrow:focus {
            color: var(--primary-dark);
        }

        .btn-link-arrow:hover i {
            transform: translateX(4px);
        }

        /* ---------- Cards ---------- */
        .card-custom {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            transition: all var(--transition);
        }

        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #d0dae3;
        }

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

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

        .stat-card .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-card .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 400;
        }

        .list-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: all var(--transition);
            margin-bottom: 16px;
        }

        .list-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #d0dae3;
        }

        .list-card .list-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background-color: var(--bg-soft);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

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

        .list-card .list-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .list-card .list-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .list-card .list-meta {
            font-size: 12px;
            color: var(--accent);
            font-weight: 500;
        }

        /* ---------- Table ---------- */
        .table-custom {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }

        .table-custom thead th {
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 14px;
            padding: 16px 18px;
            text-align: left;
            border-bottom: 2px solid var(--primary);
            white-space: nowrap;
        }

        .table-custom tbody td {
            padding: 14px 18px;
            font-size: 14px;
            color: var(--text);
            border-bottom: 1px solid var(--border);
            vertical-align: middle;
        }

        .table-custom tbody tr:hover td {
            background-color: var(--primary-lighter);
        }

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

        .badge-accent {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 20px;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .badge-primary {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 20px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        /* ---------- Hero ---------- */
        .hero-category {
            background: linear-gradient(135deg, var(--primary-lighter) 0%, #f0f7fc 40%, #ffffff 100%);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
            position: relative;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(46, 107, 158, 0.05);
            z-index: 0;
        }

        .hero-category .hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: stretch;
            gap: 40px;
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .hero-category .hero-text {
            flex: 1;
            min-width: 0;
        }

        .hero-category .hero-text h1 {
            font-size: 34px;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .hero-category .hero-text .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 480px;
        }

        .hero-category .hero-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-category .hero-stats .stat-card {
            min-width: 120px;
            padding: 16px 20px;
            text-align: left;
        }

        .hero-category .hero-stats .stat-card .stat-number {
            font-size: 24px;
        }

        .hero-category .hero-image {
            flex-shrink: 0;
            width: 320px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 200px;
        }

        .hero-category .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ---------- Comparison Table Section ---------- */
        .comparison-section {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 32px;
            margin-bottom: 0;
        }

        .comparison-section .section-heading {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
        }

        .comparison-section .section-heading .icon-wrap {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        /* ---------- FAQ ---------- */
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 8px;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-item .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-item .faq-question:hover {
            background: var(--primary-lighter);
        }

        .faq-item .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            transition: transform var(--transition);
        }

        .faq-item .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.35s ease;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            background: rgba(234, 242, 248, 0.35);
        }

        .faq-item .faq-answer.open {
            padding: 16px 24px 20px;
            max-height: 300px;
        }

        .faq-item .faq-question .faq-icon.rotated {
            transform: rotate(45deg);
        }

        /* ---------- CTA Form ---------- */
        .cta-panel {
            background: linear-gradient(135deg, var(--primary-lighter) 0%, #f5faff 50%, #ffffff 100%);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 40px;
            display: flex;
            gap: 32px;
            align-items: flex-start;
            flex-wrap: wrap;
        }

        .cta-panel .cta-info {
            flex: 1;
            min-width: 260px;
        }

        .cta-panel .cta-info h2 {
            font-size: 24px;
            margin-bottom: 12px;
        }

        .cta-panel .cta-form {
            flex: 1.2;
            min-width: 300px;
        }

        .cta-panel .form-control {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 16px;
            font-size: 14px;
            transition: all var(--transition);
        }

        .cta-panel .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(46, 107, 158, 0.1);
            outline: none;
        }

        .cta-panel label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 6px;
            display: block;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: #1E2A34;
            color: #B8C4CE;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            margin-top: 40px;
            padding: 48px 0 24px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

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

        .site-footer .footer-brand p {
            font-size: 13px;
            color: #9FB0BC;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .site-footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

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

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

        .site-footer ul li a {
            color: #B8C4CE;
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #8A9BA8;
        }

        .site-footer .footer-bottom p {
            margin-bottom: 0;
            font-size: 12px;
            color: #8A9BA8;
        }

        .site-footer .footer-bottom a {
            color: #B8C4CE;
            font-size: 12px;
            text-decoration: none;
        }

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

        /* ---------- Responsive ---------- */
        @media (max-width: 1024px) {
            .site-header .nav-card {
                flex-wrap: wrap;
            }

            .nav-links {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                padding-top: 4px;
            }

            .hero-category .hero-inner {
                flex-direction: column;
                gap: 24px;
            }

            .hero-category .hero-image {
                width: 100%;
                min-height: 180px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .cta-panel {
                flex-direction: column;
                padding: 28px;
            }
        }

        @media (max-width: 768px) {
            section {
                padding-top: 32px;
                padding-bottom: 32px;
            }

            h1 {
                font-size: 26px;
            }

            h2 {
                font-size: 22px;
            }

            .site-header {
                top: 8px;
                padding: 8px 8px 0;
            }

            .site-header .nav-card {
                padding: 10px 14px;
                border-radius: var(--radius-md);
            }

            .nav-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                order: 3;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-top: 8px;
            }

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

            .nav-links .nav-item {
                padding: 10px 14px;
                border-radius: var(--radius-sm);
                background: var(--bg-soft);
                border: 1px solid var(--border);
            }

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

            .hero-category .hero-inner {
                padding-top: 32px;
                padding-bottom: 32px;
            }

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

            .comparison-section {
                padding: 20px;
                border-radius: var(--radius-md);
            }

            .table-custom thead th,
            .table-custom tbody td {
                padding: 10px 12px;
                font-size: 12px;
            }

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

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

            .cta-panel {
                padding: 20px;
                border-radius: var(--radius-md);
            }

            .list-card {
                flex-direction: column;
            }

            .list-card .list-thumb {
                width: 100%;
                height: 140px;
            }

            .hero-category .hero-stats {
                flex-direction: column;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .nav-brand .brand-name {
                font-size: 15px;
            }

            .nav-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .nav-cta {
                padding: 6px 12px;
                font-size: 12px;
            }

            h1 {
                font-size: 22px;
            }

            h2 {
                font-size: 19px;
            }

            .stat-card {
                padding: 14px 16px;
            }

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

            .btn-primary-custom,
            .btn-outline-custom {
                padding: 8px 16px;
                font-size: 13px;
                width: 100%;
                justify-content: center;
            }

            .table-custom {
                font-size: 11px;
            }

            .table-custom thead th,
            .table-custom tbody td {
                padding: 8px 8px;
                font-size: 11px;
            }

            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }

            .faq-item .faq-answer.open {
                padding: 12px 16px 16px;
            }

            .cta-panel label {
                font-size: 13px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #2E6B9E;
            --primary-dark: #1F4E70;
            --primary-light: #EAF2F8;
            --primary-lighter: #EEF4FA;
            --accent: #C49A5A;
            --accent-light: #F7F1E8;
            --bg: #F8FAFC;
            --bg-soft: #F5F7F9;
            --card: #FFFFFF;
            --border: #E3E9EF;
            --text: #2B3A47;
            --text-secondary: #6B7A86;
            --text-heading: #1E2A34;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(30, 42, 50, 0.04);
            --shadow-md: 0 4px 14px rgba(30, 42, 50, 0.06);
            --shadow-lg: 0 8px 20px rgba(30, 42, 50, 0.09);
            --transition: 0.2s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "微软雅黑", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1140px;
            --section-gap-lg: 80px;
            --section-gap-md: 48px;
            --section-gap-sm: 32px;
        }

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

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

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

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

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        section {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        @media (min-width: 768px) {
            section {
                padding-top: 72px;
                padding-bottom: 72px;
            }
        }

        @media (min-width: 1024px) {
            section {
                padding-top: 80px;
                padding-bottom: 80px;
            }
        }

        /* ---------- Header/Nav ---------- */
        .site-header {
            position: sticky;
            top: 12px;
            z-index: 1000;
            padding: 8px 12px 0;
            pointer-events: none;
        }

        .site-header .nav-card {
            pointer-events: auto;
            max-width: var(--container-max);
            margin: 0 auto;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 10px 16px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            transition: box-shadow var(--transition);
        }

        .site-header .nav-card:hover {
            box-shadow: var(--shadow-lg);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }

        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        .nav-brand .brand-name {
            font-weight: 700;
            font-size: 17px;
            color: var(--text-heading);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--card);
            color: var(--text-heading);
            font-size: 18px;
            cursor: pointer;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary-dark);
            background: var(--primary-lighter);
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 5px;
            flex-wrap: wrap;
            justify-content: center;
            width: 100%;
            padding-top: 8px;
        }

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

        .nav-links .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 12px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            background: transparent;
            cursor: pointer;
            text-decoration: none;
            width: 100%;
            justify-content: flex-start;
        }

        .nav-links .nav-item i {
            font-size: 13px;
            color: var(--primary);
            opacity: 0.7;
            width: 16px;
            text-align: center;
        }

        .nav-links .nav-item:hover,
        .nav-links .nav-item:focus {
            background: var(--primary-lighter);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        .nav-links .nav-item.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        .nav-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 16px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-cta:hover,
        .nav-cta:focus {
            background: var(--primary-dark);
            color: #fff;
        }

        @media (min-width: 992px) {
            .nav-toggle {
                display: none;
            }
            .nav-links {
                display: flex;
                width: auto;
                padding-top: 0;
            }
            .nav-links .nav-item {
                width: auto;
                justify-content: center;
            }
            .nav-links .nav-item .nav-label {
                display: inline;
            }
            .site-header .nav-card {
                flex-wrap: nowrap;
                padding: 12px 20px;
            }
        }

        @media (max-width: 991.98px) {
            .nav-cta {
                margin-left: auto;
            }
        }

        @media (max-width: 575.98px) {
            .nav-brand .brand-name {
                font-size: 15px;
            }
            .nav-cta {
                padding: 8px 12px;
                font-size: 13px;
            }
            .nav-cta span {
                display: none;
            }
        }

        /* ---------- Hero ---------- */
        .page-hero {
            background: linear-gradient(160deg, var(--primary-lighter) 0%, #F5F9FC 55%, var(--card) 100%);
            border-bottom: 1px solid var(--border);
            padding-top: 40px;
            padding-bottom: 40px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(46, 107, 158, 0.04);
            pointer-events: none;
        }

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

        .hero-bento {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-bottom: 24px;
        }

        .hero-main-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            grid-column: 1 / -1;
        }

        .hero-main-card .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 99px;
            padding: 5px 14px;
            margin-bottom: 14px;
        }

        .hero-main-card h1 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-heading);
            margin: 0 0 12px;
        }

        .hero-main-card .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            max-width: 620px;
        }

        .hero-side-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: flex-start;
            gap: 12px;
            transition: all var(--transition);
        }

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

        .hero-side-card .side-icon {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
        }

        .hero-side-card .side-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin: 0 0 4px;
        }

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

        .hero-cta-bar {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            grid-column: 1 / -1;
        }

        .hero-cta-bar .cta-text {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-heading);
        }

        .hero-cta-bar .cta-text span {
            color: var(--accent);
            font-weight: 600;
        }

        .hero-cta-bar .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .hero-cta-bar .btn-primary-custom:hover,
        .hero-cta-bar .btn-primary-custom:focus {
            background: var(--primary-dark);
            color: #fff;
        }

        .hero-image-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            background: var(--bg-soft);
            min-height: 180px;
            position: relative;
            grid-column: 1 / -1;
        }

        .hero-image-wrap img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .hero-image-wrap .img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 30px 20px 14px;
            background: linear-gradient(to top, rgba(30, 42, 50, 0.72), transparent);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        @media (min-width: 768px) {
            .hero-bento {
                grid-template-columns: 1.6fr 1fr;
                gap: 20px;
            }
            .hero-main-card {
                grid-column: 1;
                padding: 32px 28px;
            }
            .hero-side-card {
                grid-column: 2;
            }
            .hero-cta-bar {
                grid-column: 1 / -1;
            }
            .hero-image-wrap {
                grid-column: 1 / -1;
            }
            .hero-main-card h1 {
                font-size: 34px;
            }
        }

        @media (min-width: 992px) {
            .hero-bento {
                grid-template-columns: 1.5fr 1fr 1fr;
                grid-template-rows: auto auto;
                gap: 20px;
            }
            .hero-main-card {
                grid-column: 1;
                grid-row: 1 / span 2;
                display: flex;
                flex-direction: column;
                justify-content: center;
            }
            .hero-side-card {
                grid-column: 2;
                grid-row: 1;
            }
            .hero-side-card:last-of-type {
                grid-column: 3;
                grid-row: 1;
            }
            .hero-cta-bar {
                grid-column: 2 / 4;
                grid-row: 2;
            }
            .hero-image-wrap {
                grid-column: 2 / 4;
                grid-row: auto;
            }
            .hero-bento .hero-image-wrap {
                grid-column: 2 / 4;
                grid-row: 3;
            }
            .hero-bento {
                grid-template-columns: 1.5fr 1fr 1fr;
                grid-template-rows: auto auto auto;
            }
            .hero-main-card {
                grid-column: 1;
                grid-row: 1 / span 2;
            }
            .hero-side-card {
                grid-column: 2;
                grid-row: 1;
            }
            .hero-side-card:last-of-type {
                grid-column: 3;
                grid-row: 1;
            }
            .hero-cta-bar {
                grid-column: 2 / 4;
                grid-row: 2;
            }
            .hero-image-wrap {
                grid-column: 2 / 4;
                grid-row: 3;
            }
        }

        /* ---------- Section Title ---------- */
        .section-title {
            margin-bottom: 36px;
        }

        .section-title .title-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-light);
            border-radius: 99px;
            padding: 5px 14px;
            margin-bottom: 10px;
            letter-spacing: 1px;
        }

        .section-title h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-heading);
            margin: 0 0 10px;
            line-height: 1.35;
        }

        .section-title p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            max-width: 640px;
            line-height: 1.7;
        }

        @media (min-width: 768px) {
            .section-title h2 {
                font-size: 30px;
            }
        }

        /* ---------- Stats Cards ---------- */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .stat-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition);
        }

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

        .stat-card .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

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

        @media (min-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
            .stat-card .stat-number {
                font-size: 32px;
            }
        }

        /* ---------- Card Wall ---------- */
        .card-wall {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        .wall-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .wall-card .wall-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            flex-shrink: 0;
        }

        .wall-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-heading);
            margin: 0;
        }

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

        .wall-card .wall-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
            text-decoration: none;
        }

        .wall-card .wall-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        @media (min-width: 576px) {
            .card-wall {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 992px) {
            .card-wall {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
        }

        /* ---------- Deep Content ---------- */
        .deep-content {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow-sm);
            max-width: 860px;
            margin: 0 auto;
        }

        .deep-content h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            margin: 0 0 16px;
            line-height: 1.4;
        }

        .deep-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-heading);
            margin: 24px 0 10px;
            line-height: 1.4;
        }

        .deep-content p {
            font-size: 15px;
            color: var(--text);
            line-height: 1.85;
            margin: 0 0 14px;
        }

        .deep-content .highlight-box {
            background: var(--primary-lighter);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 14px 18px;
            margin: 16px 0;
            font-size: 14px;
            color: var(--text);
            line-height: 1.7;
        }

        .deep-content .data-table {
            width: 100%;
            margin: 18px 0;
            border-collapse: collapse;
            font-size: 14px;
        }

        .deep-content .data-table th,
        .deep-content .data-table td {
            padding: 10px 14px;
            border: 1px solid var(--border);
            text-align: left;
            color: var(--text);
        }

        .deep-content .data-table th {
            background: var(--primary-lighter);
            color: var(--text-heading);
            font-weight: 600;
            font-size: 13px;
        }

        .deep-content .data-table td {
            font-size: 13px;
            color: var(--text-secondary);
        }

        @media (min-width: 768px) {
            .deep-content {
                padding: 36px 32px;
            }
            .deep-content h2 {
                font-size: 26px;
            }
        }

        /* ---------- Report List ---------- */
        .report-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .report-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }

        .report-thumb {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background: var(--bg-soft);
            flex-shrink: 0;
        }

        .report-body {
            padding: 18px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .report-body .report-date {
            font-size: 12px;
            color: var(--text-secondary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .report-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin: 0;
            line-height: 1.5;
        }

        .report-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        .report-body .report-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
            text-decoration: none;
            margin-top: auto;
        }

        .report-body .report-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        @media (min-width: 576px) {
            .report-item {
                flex-direction: row;
            }
            .report-thumb {
                width: 200px;
                height: auto;
                min-height: 120px;
            }
            .report-body {
                padding: 20px 22px;
            }
        }

        @media (min-width: 768px) {
            .report-thumb {
                width: 220px;
            }
        }

        /* ---------- Comparison Cards ---------- */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        .compare-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .compare-card.compare-highlight {
            background: var(--primary-light);
            border-color: var(--primary);
        }

        .compare-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-heading);
            margin: 0 0 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .compare-card ul li {
            font-size: 14px;
            color: var(--text);
            line-height: 1.7;
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .compare-card ul li:last-child {
            border-bottom: none;
        }

        .compare-card ul li i {
            color: var(--accent);
            font-size: 13px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .compare-card.compare-highlight ul li i {
            color: var(--primary);
        }

        @media (min-width: 768px) {
            .compare-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        /* ---------- Brand Intro ---------- */
        .brand-intro {
            background: var(--primary-lighter);
            border-radius: var(--radius-lg);
            padding: 36px 24px;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }

        .brand-intro .brand-badge {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--card);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 26px;
            margin: 0 auto 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .brand-intro h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            margin: 0 0 12px;
        }

        .brand-intro p {
            font-size: 15px;
            color: var(--text);
            line-height: 1.85;
            margin: 0;
            max-width: 700px;
            margin: 0 auto;
            text-align: justify;
        }

        @media (min-width: 768px) {
            .brand-intro {
                padding: 48px 36px;
            }
            .brand-intro h2 {
                font-size: 24px;
            }
        }

        /* ---------- FAQ ---------- */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

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

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

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

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 12px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 240px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            background: var(--bg-soft);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
        }

        /* ---------- CTA Form ---------- */
        .cta-form-section {
            background: linear-gradient(150deg, var(--primary-lighter) 0%, #F2F7FB 60%, var(--card) 100%);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .cta-form-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr;
        }

        .cta-form-left {
            background: var(--primary);
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            color: #fff;
        }

        .cta-form-left h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 12px;
            color: #fff;
            line-height: 1.4;
        }

        .cta-form-left p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.75;
            margin: 0 0 18px;
        }

        .cta-form-left .form-benefits {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .cta-form-left .form-benefits li {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.9);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .cta-form-left .form-benefits li i {
            color: var(--accent);
        }

        .cta-form-right {
            padding: 32px 28px;
        }

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

        .cta-form-right label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-heading);
            display: block;
            margin-bottom: 6px;
        }

        .cta-form-right input,
        .cta-form-right textarea,
        .cta-form-right select {
            width: 100%;
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text);
            transition: all var(--transition);
        }

        .cta-form-right input:focus,
        .cta-form-right textarea:focus,
        .cta-form-right select:focus {
            border-color: var(--primary);
            background: #fff;
            outline: none;
            box-shadow: 0 0 0 3px rgba(46, 107, 158, 0.1);
        }

        .cta-form-right textarea {
            min-height: 90px;
            resize: vertical;
        }

        .cta-form-right .btn-submit {
            width: 100%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
        }

        .cta-form-right .btn-submit:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .cta-form-right .form-hint {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 10px;
            text-align: center;
        }

        @media (min-width: 768px) {
            .cta-form-card {
                grid-template-columns: 1fr 1.2fr;
            }
            .cta-form-left {
                padding: 40px 36px;
            }
            .cta-form-right {
                padding: 40px 36px;
            }
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: #1E2A34;
            color: #B8C4CC;
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 28px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            color: #B8C4CC;
            line-height: 1.75;
            margin: 0;
            max-width: 320px;
        }

        .site-footer .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
        }

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

        .site-footer .footer-col ul li a {
            font-size: 14px;
            color: #B8C4CC;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom {
            padding-top: 20px;
            text-align: center;
        }

        .site-footer .footer-bottom p {
            font-size: 13px;
            color: #8B98A0;
            margin: 4px 0;
        }

        .site-footer .footer-bottom a {
            color: #B8C4CC;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        @media (min-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr 1fr;
                gap: 32px;
            }
            .site-footer .footer-bottom {
                text-align: left;
                display: flex;
                flex-wrap: wrap;
                gap: 16px;
                align-items: center;
                justify-content: space-between;
            }
        }

        /* ---------- Misc ---------- */
        .text-accent {
            color: var(--accent);
        }

        .fw-bold {
            font-weight: 700;
        }

/* roulang page: category7 */
:root {
            --primary: #2E6B9E;
            --primary-dark: #1F4E70;
            --primary-light: #EAF2F8;
            --primary-lighter: #EEF4FA;
            --accent: #C49A5A;
            --accent-light: #F7F1E8;
            --bg: #F8FAFC;
            --bg-soft: #F5F7F9;
            --card: #FFFFFF;
            --border: #E3E9EF;
            --text: #2B3A47;
            --text-secondary: #6B7A86;
            --text-heading: #1E2A34;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(30, 42, 50, 0.04);
            --shadow-md: 0 4px 14px rgba(30, 42, 50, 0.06);
            --shadow-lg: 0 8px 20px rgba(30, 42, 50, 0.09);
            --transition: 0.2s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "微软雅黑", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1140px;
            --section-gap-lg: 80px;
            --section-gap-md: 48px;
            --section-gap-sm: 32px;
        }

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

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

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

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

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        section {
            padding-top: var(--section-gap-lg);
            padding-bottom: var(--section-gap-lg);
        }

        .section-gap-md {
            padding-top: var(--section-gap-md);
            padding-bottom: var(--section-gap-md);
        }

        .section-gap-sm {
            padding-top: var(--section-gap-sm);
            padding-bottom: var(--section-gap-sm);
        }

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

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

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 12px 16px;
            background: linear-gradient(180deg, var(--bg) 0%, var(--bg) 70%, transparent 100%);
        }

        .site-header .nav-card {
            max-width: var(--container-max);
            margin: 0 auto;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 12px 20px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: box-shadow var(--transition);
        }

        .site-header .nav-card:hover {
            box-shadow: var(--shadow-lg);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        .nav-brand .brand-name {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-heading);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .nav-links .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            background: transparent;
            cursor: pointer;
            text-decoration: none;
        }

        .nav-links .nav-item i {
            font-size: 13px;
            color: var(--primary);
            opacity: 0.7;
        }

        .nav-links .nav-item:hover,
        .nav-links .nav-item:focus {
            background: var(--primary-lighter);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        .nav-links .nav-item.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        .nav-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: none;
            transition: background var(--transition), transform var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-cta:focus {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 0 0 3px rgba(46, 107, 158, 0.25);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 18px;
            color: var(--text);
            cursor: pointer;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background: var(--primary-lighter);
            border-color: var(--primary);
        }

        /* ---------- Hero / 分类页首屏 ---------- */
        .category-hero {
            padding-top: 48px;
            padding-bottom: 48px;
            background: linear-gradient(180deg, var(--primary-lighter) 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
        }

        .category-hero .hero-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
        }

        .category-hero .hero-text {
            flex: 1 1 400px;
            min-width: 0;
        }

        .category-hero .hero-text h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-heading);
            margin-bottom: 12px;
        }

        .category-hero .hero-text .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 0;
        }

        .category-hero .hero-stats {
            flex: 0 0 auto;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .hero-stat-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 16px 20px;
            min-width: 110px;
            text-align: center;
            transition: all var(--transition);
        }

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

        .hero-stat-card .stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .hero-stat-card .stat-num .accent-dot {
            color: var(--accent);
        }

        .hero-stat-card .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        .category-hero .hero-cover {
            flex: 1 1 100%;
            margin-top: 20px;
        }

        .category-hero .hero-cover .cover-placeholder {
            width: 100%;
            height: 280px;
            background-color: var(--bg-soft);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .category-hero .hero-cover .cover-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ---------- Section 标题 ---------- */
        .section-title-wrap {
            margin-bottom: 32px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 680px;
            margin-bottom: 0;
        }

        .title-accent {
            display: inline-block;
            width: 40px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin-bottom: 10px;
        }

        /* ---------- 卡片通用 ---------- */
        .card-base {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

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

        /* ---------- 列表卡片 ---------- */
        .list-card {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 20px 24px;
            transition: all var(--transition);
            margin-bottom: 14px;
        }

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

        .list-card .list-thumb {
            flex: 0 0 180px;
            width: 180px;
            height: 110px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background-color: var(--bg-soft);
            border: 1px solid var(--border);
        }

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

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

        .list-card .list-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .list-card .list-content .list-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .list-card .list-content .list-meta {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .list-card .list-content .list-meta .badge-tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
        }

        .list-card .list-content .list-meta .read-more-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
            text-decoration: none;
        }

        .list-card .list-content .list-meta .read-more-link i {
            transition: transform var(--transition);
            font-size: 12px;
        }

        .list-card .list-content .list-meta .read-more-link:hover {
            color: var(--primary-dark);
        }

        .list-card .list-content .list-meta .read-more-link:hover i {
            transform: translateX(4px);
        }

        /* ---------- 流程图 ---------- */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .process-step {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 24px 20px;
            position: relative;
            transition: all var(--transition);
        }

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

        .process-step .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 12px;
        }

        .process-step h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
        }

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

        .process-step .step-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--accent);
            background: var(--accent-light);
            padding: 2px 10px;
            border-radius: 20px;
            margin-top: 8px;
            font-weight: 500;
        }

        /* ---------- 表单区 ---------- */
        .form-panel {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 32px;
        }

        .form-panel .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .form-panel .form-field label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-heading);
            margin-bottom: 6px;
            display: block;
        }

        .form-panel .form-field input,
        .form-panel .form-field select,
        .form-panel .form-field textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--bg-soft);
            color: var(--text);
            font-size: 15px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .form-panel .form-field input:focus,
        .form-panel .form-field select:focus,
        .form-panel .form-field textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 158, 0.12);
            background: var(--card);
            outline: none;
        }

        .form-panel .form-field textarea {
            min-height: 100px;
            resize: vertical;
        }

        .form-panel .form-submit-btn {
            padding: 12px 30px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .form-panel .form-submit-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(30, 74, 110, 0.2);
        }

        .form-panel .form-submit-btn:active {
            transform: translateY(0);
        }

        .form-panel .form-trust-row {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            flex-wrap: wrap;
        }

        .form-panel .form-trust-row .trust-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .form-panel .form-trust-row .trust-item i {
            color: var(--primary);
            font-size: 14px;
        }

        /* ---------- 正文段落区 ---------- */
        .article-block {
            max-width: 800px;
        }

        .article-block h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .article-block p {
            font-size: 16px;
            line-height: 2;
            color: var(--text);
            margin-bottom: 16px;
        }

        .article-block p:last-child {
            margin-bottom: 0;
        }

        /* ---------- FAQ ---------- */
        .faq-list {
            max-width: 800px;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-item .faq-question {
            padding: 18px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-item .faq-question:hover {
            background: var(--primary-lighter);
        }

        .faq-item .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            transition: transform var(--transition);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-item .faq-answer {
            padding: 0 24px 18px 24px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* ---------- 鉴别卡片 ---------- */
        .verify-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .verify-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

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

        .verify-card .verify-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 14px;
        }

        .verify-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
        }

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

        /* ---------- CTA ---------- */
        .cta-panel {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            text-align: center;
            box-shadow: var(--shadow-lg);
        }

        .cta-panel h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-panel p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 24px;
        }

        .cta-panel .cta-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-panel .cta-btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: #fff;
            color: var(--primary-dark);
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            font-size: 15px;
            transition: all var(--transition);
            text-decoration: none;
        }

        .cta-panel .cta-btn-primary:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
        }

        .cta-panel .cta-btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.6);
            font-size: 15px;
            transition: all var(--transition);
            text-decoration: none;
        }

        .cta-panel .cta-btn-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        /* ---------- 注意事项 ---------- */
        .notice-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 16px;
        }

        .notice-list li {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            font-size: 14px;
            color: var(--text);
            line-height: 1.7;
        }

        .notice-list li:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .notice-list li i {
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: #1E2A34;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 64px;
            padding-top: 48px;
            padding-bottom: 24px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .site-footer .footer-brand .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
        }

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

        .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: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .site-footer .footer-bottom p {
            margin-bottom: 4px;
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

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

        /* ---------- 响应式 ---------- */
        @media (max-width: 1024px) {
            .site-header .nav-card {
                flex-wrap: wrap;
                gap: 10px;
            }
            .nav-links {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                overflow-x: auto;
                flex-wrap: nowrap;
                padding-bottom: 4px;
                scrollbar-width: thin;
            }
            .nav-links::-webkit-scrollbar {
                height: 3px;
            }
            .nav-links::-webkit-scrollbar-thumb {
                background: var(--border);
                border-radius: 3px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .form-panel .form-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header .nav-card {
                padding: 10px 14px;
            }
            .nav-brand .brand-name {
                font-size: 16px;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-links {
                display: none;
                order: 4;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 10px 0;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links .nav-item {
                width: 100%;
                justify-content: flex-start;
                padding: 10px 14px;
                border: 1px solid var(--border);
                border-radius: var(--radius-sm);
                background: var(--bg-soft);
            }
            .category-hero .hero-text h1 {
                font-size: 26px;
            }
            .category-hero .hero-stats {
                flex-wrap: wrap;
                width: 100%;
            }
            .hero-stat-card {
                flex: 1 1 45%;
                min-width: 0;
            }
            .category-hero .hero-cover .cover-placeholder {
                height: 200px;
            }
            .list-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .list-card .list-thumb {
                flex: 0 0 auto;
                width: 100%;
                height: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-panel {
                padding: 32px 20px;
            }
            .cta-panel h2 {
                font-size: 24px;
            }
            section {
                padding-top: var(--section-gap-md);
                padding-bottom: var(--section-gap-md);
            }
            .section-title {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .site-header {
                padding: 8px 8px;
            }
            .nav-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .nav-brand .brand-name {
                font-size: 15px;
            }
            .nav-cta span {
                display: none;
            }
            .nav-cta i {
                font-size: 16px;
            }
            .category-hero {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .category-hero .hero-text h1 {
                font-size: 22px;
            }
            .hero-stat-card {
                padding: 12px 14px;
            }
            .hero-stat-card .stat-num {
                font-size: 22px;
            }
            .list-card .list-content h3 {
                font-size: 15px;
            }
            .form-panel {
                padding: 20px 16px;
            }
            .cta-panel h2 {
                font-size: 20px;
            }
            .article-block p {
                font-size: 15px;
            }
        }