/* roulang page: index */
:root {
            --primary: #1A56DB;
            --primary-hover: #1E4FC7;
            --primary-light: #E8F0FE;
            --accent: #38BDF8;
            --accent-cyan: #22D3EE;
            --highlight: #F59E0B;
            --bg: #F5F7FA;
            --bg-alt: #F8FAFC;
            --card: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 2px 6px rgba(15, 23, 42, 0.08), 0 12px 32px rgba(15, 23, 42, 0.08);
            --transition: all 0.25s ease-out;
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding: 80px 0;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

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

        /* 容器 */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 头部 */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1030;
            min-height: 64px;
            display: flex;
            align-items: center;
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            transition: var(--transition);
            white-space: nowrap;
        }

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

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

        .btn-hamburger {
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 42px;
            height: 42px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: var(--transition);
            padding: 0;
        }

        .btn-hamburger:hover {
            background: var(--primary-light);
            border-color: var(--primary);
        }

        .btn-hamburger .bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }

        .btn-hamburger:hover .bar {
            background: var(--primary);
        }

        .btn-header-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-header-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.28);
            color: #fff;
        }

        /* 抽屉导航 */
        .offcanvas-custom {
            position: fixed;
            top: 0;
            right: -100%;
            width: min(420px, 100vw);
            height: 100vh;
            background: #fff;
            box-shadow: -8px 0 40px rgba(15, 23, 42, 0.15);
            transition: right 0.3s ease-out;
            z-index: 1055;
            display: flex;
            flex-direction: column;
            padding: 24px 28px;
            overflow-y: auto;
        }

        .offcanvas-custom.active {
            right: 0;
        }

        .offcanvas-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.45);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease-out;
        }

        .offcanvas-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .offcanvas-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 32px;
            line-height: 1;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            padding: 4px 8px;
            border-radius: 6px;
        }

        .offcanvas-close:hover {
            color: var(--text);
            background: var(--bg);
        }

        .offcanvas-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 16px;
        }

        .offcanvas-nav a {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            padding: 14px 16px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            display: block;
            border: 1px solid transparent;
        }

        .offcanvas-nav a:hover,
        .offcanvas-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-color: rgba(26, 86, 219, 0.2);
        }

        .offcanvas-footer-info {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* Hero */
        .hero-section {
            position: relative;
            background: var(--bg);
            padding: 72px 0 64px;
            border-bottom: 1px solid var(--border);
        }

        .hero-section .container-custom {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.4px;
        }

        .hero-title {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .hero-description {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.8;
            max-width: 560px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-custom:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(26, 86, 219, 0.3);
            color: #fff;
        }

        .btn-secondary-custom {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 11px 22px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            transform: translateY(-2px);
            color: var(--primary);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4/3;
            background: var(--primary-light);
        }

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

        /* Section 通用 */
        .section {
            padding: var(--section-padding);
        }

        .section-alt {
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-title {
            font-size: 27px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 750px;
        }

        /* 指标看板 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

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

        .metric-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .metric-value {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            letter-spacing: -1px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* 服务矩阵 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
        }

        .service-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--primary-light);
        }

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

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

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

        .service-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

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

        .service-card-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 结果对比 */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .compare-card {
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .compare-card.before {
            background: #FEF2F2;
            border-color: #FECACA;
        }

        .compare-card.after {
            background: #F0FDF4;
            border-color: #BBF7D0;
        }

        .compare-card:hover {
            box-shadow: var(--shadow-md);
        }

        .compare-label {
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 12px;
        }

        .compare-card.before .compare-label {
            color: #DC2626;
        }

        .compare-card.after .compare-label {
            color: #16A34A;
        }

        .compare-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text);
        }

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

        .compare-list li {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }

        .compare-list li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 8px;
        }

        .compare-card.before .compare-list li::before {
            background: #DC2626;
        }
        .compare-card.after .compare-list li::before {
            background: #16A34A;
        }

        /* 品牌介绍 */
        .brand-intro-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 16/10;
            background: var(--primary-light);
        }

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

        .brand-intro-content h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }

        .brand-intro-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        /* 里程碑 */
        .timeline {
            position: relative;
            padding-left: 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .timeline-item {
            display: flex;
            gap: 20px;
            position: relative;
            padding-left: 32px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.2);
            z-index: 1;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            left: 14px;
            top: 20px;
            bottom: -16px;
            width: 2px;
            background: var(--border);
        }
        .timeline-item:last-child::after {
            display: none;
        }

        .timeline-content {
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            flex: 1;
            transition: var(--transition);
        }

        .timeline-content:hover {
            box-shadow: var(--shadow-md);
        }

        .timeline-date {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 6px;
        }

        .timeline-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .timeline-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 资讯列表 */
        .news-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .news-card-img {
            aspect-ratio: 16/9;
            background: var(--primary-light);
            overflow: hidden;
        }

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

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

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

        .news-card-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 12px;
            align-self: flex-start;
            margin-bottom: 8px;
        }

        .news-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-card-meta {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: auto;
        }

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

        .guarantee-card {
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .guarantee-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .guarantee-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            color: var(--primary);
        }

        .guarantee-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .guarantee-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 快速解答 */
        .quick-answer-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

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

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

        .quick-answer-bullet {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            margin-top: 8px;
            flex-shrink: 0;
        }

        .quick-answer-q {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .quick-answer-a {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

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

        .faq-question {
            padding: 18px 22px;
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--transition);
        }

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

        .faq-icon {
            font-size: 22px;
            font-weight: 400;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: transform 0.3s ease-out;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease-out;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* 专题场景 */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .scenario-card-img {
            aspect-ratio: 16/9;
            background: var(--primary-light);
            overflow: hidden;
        }

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

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

        .scenario-card-body {
            padding: 18px 20px;
        }

        .scenario-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .scenario-card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 热门话题 */
        .topic-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .topic-tag {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            cursor: default;
            box-shadow: var(--shadow-sm);
        }

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

        /* 玩家社区 */
        .community-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .community-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .community-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            color: var(--primary);
            font-size: 24px;
        }

        .community-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .community-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 合作生态 */
        .partner-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
        }

        .partner-card {
            background: var(--card);
            border-radius: var(--radius-sm);
            aspect-ratio: 3/2;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }

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

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

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

        .form-wrapper .form-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 6px;
        }

        .form-wrapper .form-control,
        .form-wrapper .form-select {
            background: #F1F5F9;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 14px;
            transition: var(--transition);
            color: var(--text);
        }

        .form-wrapper .form-control:focus,
        .form-wrapper .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12);
            outline: none;
            background: #fff;
        }

        .form-wrapper .btn-primary-custom {
            width: 100%;
            justify-content: center;
            padding: 13px;
            font-size: 15px;
        }

        /* 底部CTA横幅 */
        .cta-banner {
            background: var(--primary);
            color: #fff;
            padding: 36px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .cta-banner-title {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }

        .cta-banner .btn-light-custom {
            background: #fff;
            color: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            padding: 11px 24px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .cta-banner .btn-light-custom:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(255, 255, 255, 0.2);
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #94A3B8;
            padding: 40px 0 28px;
            font-size: 13px;
        }

        .site-footer .container-custom {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-copyright {
            color: #CBD5E1;
            font-size: 14px;
            font-weight: 500;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: center;
        }

        .footer-links a {
            color: #94A3B8;
            transition: var(--transition);
        }

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

        .footer-separator {
            color: #475569;
        }

        .footer-beian {
            font-size: 12px;
            color: #64748B;
            line-height: 1.6;
        }

        /* 响应式 */
        @media (max-width: 992px) {
            .hero-section .container-custom {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 32px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .community-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partner-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .brand-intro-wrapper {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 23px;
            }
            .hero-section {
                padding: 48px 0 40px;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-description {
                font-size: 14px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-value {
                font-size: 26px;
            }
            .service-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .quick-answer-list {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .community-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .partner-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .form-wrapper {
                padding: 22px 18px;
            }
            .cta-banner {
                flex-direction: column;
                text-align: center;
            }
            .cta-banner-title {
                font-size: 17px;
            }
            .btn-header-cta {
                padding: 7px 14px;
                font-size: 13px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .offcanvas-custom {
                width: min(350px, 95vw);
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 16px;
            }
            .hero-title {
                font-size: 22px;
            }
            .section-title {
                font-size: 20px;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .partner-grid {
                grid-template-columns: 1fr 1fr;
            }
            .metric-card {
                padding: 18px;
            }
            .metric-value {
                font-size: 24px;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                padding: 10px 18px;
                font-size: 14px;
            }
            .hero-cta-group {
                gap: 10px;
            }
            .timeline-item {
                padding-left: 22px;
            }
            .timeline-item::before {
                width: 10px;
                height: 10px;
                left: 5px;
                top: 10px;
            }
            .timeline-item::after {
                left: 9px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1A56DB;
            --primary-hover: #1E4FC7;
            --primary-light: #E8F0FE;
            --accent: #38BDF8;
            --accent-cyan: #22D3EE;
            --highlight: #F59E0B;
            --bg: #F5F7FA;
            --bg-alt: #F8FAFC;
            --card: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 2px 6px rgba(15, 23, 42, 0.08), 0 12px 32px rgba(15, 23, 42, 0.08);
            --transition: all 0.25s ease-out;
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding: 72px 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1030;
            min-height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .brand-logo:hover {
            color: var(--primary-hover);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-hamburger {
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 42px;
            height: 42px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: var(--transition);
            padding: 0;
        }
        .btn-hamburger:hover {
            background: var(--primary-light);
            border-color: var(--primary);
        }
        .btn-hamburger .bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .btn-hamburger:hover .bar {
            background: var(--primary);
        }
        .btn-header-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-header-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.28);
            color: #fff;
        }
        .offcanvas-custom {
            position: fixed;
            top: 0;
            right: -100%;
            width: min(420px, 100vw);
            height: 100vh;
            background: #fff;
            box-shadow: -8px 0 40px rgba(15, 23, 42, 0.15);
            transition: right 0.3s ease-out;
            z-index: 1055;
            display: flex;
            flex-direction: column;
            padding: 24px 28px;
            overflow-y: auto;
        }
        .offcanvas-custom.active {
            right: 0;
        }
        .offcanvas-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.45);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease-out;
        }
        .offcanvas-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        .offcanvas-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 32px;
            line-height: 1;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            padding: 4px 8px;
            border-radius: 6px;
        }
        .offcanvas-close:hover {
            color: var(--text);
            background: var(--bg);
        }
        .offcanvas-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 16px;
        }
        .offcanvas-nav a {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            padding: 14px 16px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            display: block;
            border: 1px solid transparent;
        }
        .offcanvas-nav a:hover,
        .offcanvas-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-color: var(--border);
        }
        .offcanvas-nav a.active {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }
        .offcanvas-footer-text {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .page-section {
            padding: var(--section-padding);
        }
        .page-section.alt-bg {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 720px;
        }
        .badge-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 20px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .badge-tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .breadcrumb-nav {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-separator {
            color: var(--border);
        }
        .page-header-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }
        .page-header-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.75;
        }
        .filter-toolbar {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }
        .filter-toolbar .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
        }
        .filter-select {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 14px;
            font-size: 14px;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
            min-width: 140px;
        }
        .filter-select:hover,
        .filter-select:focus {
            border-color: var(--primary);
            background: #fff;
        }
        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .filter-tag {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 5px 14px;
            font-size: 13px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover,
        .filter-tag.active-tag {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        .team-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .team-list-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: flex;
            gap: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
        }
        .team-list-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #cbd5e1;
        }
        .team-list-item .list-img-wrap {
            flex-shrink: 0;
            width: 220px;
            height: 150px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-alt);
        }
        .team-list-item .list-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .team-list-item:hover .list-img-wrap img {
            transform: scale(1.04);
        }
        .team-list-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }
        .team-list-content .list-item-meta {
            display: flex;
            gap: 10px;
            align-items: center;
            margin-bottom: 6px;
            flex-wrap: wrap;
        }
        .team-list-content .list-item-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.5;
            transition: var(--transition);
        }
        .team-list-item:hover .list-item-title {
            color: var(--primary);
        }
        .team-list-content .list-item-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .team-list-content .list-item-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: auto;
            flex-wrap: wrap;
            gap: 8px;
        }
        .team-list-content .list-item-date {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .btn-outline-primary-custom {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-sm);
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
            display: inline-block;
            text-align: center;
        }
        .btn-outline-primary-custom:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
        }
        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
            display: inline-block;
            text-align: center;
        }
        .btn-primary-custom:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.28);
            color: #fff;
        }
        .load-more-wrap {
            display: flex;
            justify-content: center;
            margin-top: 28px;
        }
        .topic-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .topic-cloud .badge-tag {
            font-size: 14px;
            padding: 8px 18px;
            background: var(--card);
            border: 1px solid var(--border);
            color: var(--text-secondary);
        }
        .topic-cloud .badge-tag:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .special-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .special-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .special-card .special-img-wrap {
            height: 180px;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .special-card .special-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .special-card:hover .special-img-wrap img {
            transform: scale(1.04);
        }
        .special-card .special-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .special-card .special-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
            transition: var(--transition);
        }
        .special-card:hover .special-title {
            color: var(--primary);
        }
        .special-card .special-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
            flex: 1;
        }
        .recent-list {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
        }
        .recent-list .recent-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }
        .recent-list .recent-item:last-child {
            border-bottom: none;
        }
        .recent-list .recent-item .recent-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        .recent-list .recent-item .recent-title {
            font-size: 14px;
            color: var(--text);
            font-weight: 500;
            transition: var(--transition);
        }
        .recent-list .recent-item:hover .recent-title {
            color: var(--primary);
        }
        .recent-list .recent-item .recent-date {
            margin-left: auto;
            font-size: 12px;
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .subscribe-banner {
            background: linear-gradient(135deg, #E8F0FE 0%, #D6E7FF 50%, #E0F2FE 100%);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            border: 1px solid #C7D9F5;
        }
        .subscribe-banner .subscribe-text {
            flex: 1;
            min-width: 240px;
        }
        .subscribe-banner .subscribe-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .subscribe-banner .subscribe-desc {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .anchor-nav {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .anchor-nav a {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 12px 22px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .anchor-nav a:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .anchor-nav a .anchor-arrow {
            color: var(--accent);
            font-weight: 700;
        }
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 32px 0;
            margin-top: 0;
        }
        .site-footer .container-custom {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .footer-copyright {
            font-size: 14px;
            color: var(--text);
            font-weight: 500;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
        }
        .footer-links a {
            color: var(--text-secondary);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-separator {
            color: var(--border);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 4px 12px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        @media (max-width: 992px) {
            .page-section {
                padding: 56px 0;
            }
            .page-header-title {
                font-size: 26px;
            }
            .section-title {
                font-size: 22px;
            }
            .team-list-item .list-img-wrap {
                width: 180px;
                height: 130px;
            }
        }
        @media (max-width: 768px) {
            .team-list-item {
                flex-direction: column;
                gap: 14px;
                padding: 16px;
            }
            .team-list-item .list-img-wrap {
                width: 100%;
                height: 180px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .subscribe-banner {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .container-custom {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .page-header-title {
                font-size: 22px;
            }
            .section-title {
                font-size: 20px;
            }
            .btn-header-cta {
                padding: 7px 14px;
                font-size: 13px;
            }
            .brand-logo {
                font-size: 19px;
            }
            .anchor-nav a {
                padding: 10px 16px;
                font-size: 13px;
            }
            .footer-beian {
                flex-direction: column;
                gap: 6px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1A56DB;
            --primary-hover: #1E4FC7;
            --primary-light: #E8F0FE;
            --accent: #38BDF8;
            --accent-cyan: #22D3EE;
            --highlight: #F59E0B;
            --bg: #F5F7FA;
            --bg-alt: #F8FAFC;
            --card: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 2px 6px rgba(15, 23, 42, 0.08), 0 12px 32px rgba(15, 23, 42, 0.08);
            --transition: all 0.25s ease-out;
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding: 80px 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1030;
            min-height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .brand-logo:hover {
            color: var(--primary-hover);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-hamburger {
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 42px;
            height: 42px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: var(--transition);
            padding: 0;
        }
        .btn-hamburger:hover {
            background: var(--primary-light);
            border-color: var(--primary);
        }
        .btn-hamburger .bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .btn-hamburger:hover .bar {
            background: var(--primary);
        }
        .btn-header-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-header-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.28);
            color: #fff;
        }
        .offcanvas-custom {
            position: fixed;
            top: 0;
            right: -100%;
            width: min(420px, 100vw);
            height: 100vh;
            background: #fff;
            box-shadow: -8px 0 40px rgba(15, 23, 42, 0.15);
            transition: right 0.3s ease-out;
            z-index: 1055;
            display: flex;
            flex-direction: column;
            padding: 24px 28px;
            overflow-y: auto;
        }
        .offcanvas-custom.active {
            right: 0;
        }
        .offcanvas-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.45);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease-out;
        }
        .offcanvas-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        .offcanvas-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 32px;
            line-height: 1;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            padding: 4px 8px;
            border-radius: 6px;
        }
        .offcanvas-close:hover {
            color: var(--text);
            background: var(--bg);
        }
        .offcanvas-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 16px;
        }
        .offcanvas-nav a {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            padding: 14px 16px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            display: block;
            border: 1px solid transparent;
        }
        .offcanvas-nav a:hover,
        .offcanvas-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-color: var(--border);
        }
        .offcanvas-footer {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-secondary);
        }
        main {
            display: block;
        }
        .breadcrumb-section {
            padding: 28px 0 12px;
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-nav {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-nav .separator {
            color: var(--border);
            user-select: none;
        }
        .breadcrumb-nav .current {
            color: var(--text);
            font-weight: 500;
        }
        .page-title-section {
            padding: 24px 0 32px;
            background: var(--bg-alt);
        }
        .page-title-section h1 {
            font-size: 32px;
            font-weight: 700;
            margin: 0;
            color: var(--text);
            letter-spacing: 0.3px;
        }
        .page-title-section .subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 10px;
            max-width: 720px;
        }
        .content-section {
            padding: 48px 0;
        }
        .content-section.alt-bg {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }
        .btn {
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }
        .btn-primary-custom:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.28);
            color: #fff;
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--border);
        }
        .btn-outline-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-sm-custom {
            padding: 7px 14px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }
        .filter-toolbar {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }
        .filter-toolbar .filter-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tag {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 5px 14px;
            font-size: 13px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-tag.active-tag {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .filter-sort {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .filter-sort select {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 7px 12px;
            font-size: 13px;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font);
        }
        .filter-sort select:hover {
            border-color: var(--primary);
        }
        .filter-sort select:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-color: var(--primary);
        }
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .article-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            gap: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
        }
        .article-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .article-item .article-img {
            flex-shrink: 0;
            width: 200px;
            height: 130px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-alt);
        }
        .article-item .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-item .article-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }
        .article-item .article-category {
            font-size: 12px;
            font-weight: 500;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 4px;
            padding: 2px 10px;
            display: inline-block;
            width: fit-content;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .article-item .article-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
            transition: var(--transition);
        }
        .article-item:hover .article-title {
            color: var(--primary);
        }
        .article-item .article-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-item .article-meta {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: auto;
        }
        .article-item .article-meta .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--border);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud .cloud-tag {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 7px 16px;
            font-size: 13px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
        }
        .tag-cloud .cloud-tag:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .topic-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
            height: 100%;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .topic-card .topic-img {
            height: 150px;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .topic-card .topic-body {
            padding: 16px 20px;
        }
        .topic-card .topic-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .topic-card .topic-info {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .recent-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .recent-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .recent-list li:last-child {
            border-bottom: none;
        }
        .recent-list a {
            font-size: 14px;
            color: var(--text);
            font-weight: 500;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .recent-list a:hover {
            color: var(--primary);
        }
        .recent-list .recent-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        .recent-list .recent-date {
            font-size: 12px;
            color: var(--text-secondary);
            margin-left: auto;
            white-space: nowrap;
        }
        .subscribe-card {
            background: linear-gradient(135deg, var(--primary) 0%, #1E4FC7 100%);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
        }
        .subscribe-card .subscribe-text h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .subscribe-card .subscribe-text p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            margin: 0;
        }
        .btn-white-custom {
            background: #fff;
            color: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-white-custom:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }
        .quick-nav {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .quick-nav a {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }
        .quick-nav a:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 32px 0;
            margin-top: 40px;
        }
        .site-footer .container-custom {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 12px;
        }
        .footer-copyright {
            font-size: 14px;
            color: var(--text);
            font-weight: 500;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
        }
        .footer-links a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-separator {
            color: var(--border);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-secondary);
        }
        .footer-beian span {
            white-space: nowrap;
        }
        @media (max-width: 992px) {
            :root {
                --section-padding: 56px 0;
            }
            .filter-sort {
                margin-left: 0;
                width: 100%;
            }
            .filter-sort select {
                flex: 1;
            }
            .article-item .article-img {
                width: 160px;
                height: 110px;
            }
        }
        @media (max-width: 768px) {
            .page-title-section h1 {
                font-size: 24px;
            }
            .article-item {
                flex-direction: column;
                padding: 16px;
            }
            .article-item .article-img {
                width: 100%;
                height: 180px;
            }
            .subscribe-card {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }
            .site-header {
                min-height: 56px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .btn-header-cta {
                padding: 7px 14px;
                font-size: 13px;
            }
            .offcanvas-custom {
                padding: 16px 20px;
            }
            .offcanvas-nav a {
                font-size: 18px;
                padding: 12px 14px;
            }
            .content-section {
                padding: 32px 0;
            }
            .filter-toolbar {
                padding: 12px 14px;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding: 0 16px;
            }
            .page-title-section h1 {
                font-size: 20px;
            }
            .article-item .article-title {
                font-size: 16px;
            }
            .quick-nav a {
                font-size: 12px;
                padding: 8px 14px;
            }
            .tag-cloud .cloud-tag {
                font-size: 12px;
                padding: 5px 12px;
            }
            .footer-beian {
                flex-direction: column;
                gap: 4px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1A56DB;
            --primary-hover: #1E4FC7;
            --primary-light: #E8F0FE;
            --accent: #38BDF8;
            --accent-cyan: #22D3EE;
            --highlight: #F59E0B;
            --bg: #F5F7FA;
            --bg-alt: #F8FAFC;
            --card: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 2px 6px rgba(15, 23, 42, 0.08), 0 12px 32px rgba(15, 23, 42, 0.08);
            --transition: all 0.25s ease-out;
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding: 80px 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1030;
            min-height: 64px;
            display: flex;
            align-items: center;
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            transition: var(--transition);
            white-space: nowrap;
        }

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

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

        .btn-hamburger {
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 42px;
            height: 42px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: var(--transition);
            padding: 0;
        }

        .btn-hamburger:hover {
            background: var(--primary-light);
            border-color: var(--primary);
        }

        .btn-hamburger .bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }

        .btn-hamburger:hover .bar {
            background: var(--primary);
        }

        .btn-header-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-header-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.28);
            color: #fff;
        }

        .offcanvas-custom {
            position: fixed;
            top: 0;
            right: -100%;
            width: min(420px, 100vw);
            height: 100vh;
            background: #fff;
            box-shadow: -8px 0 40px rgba(15, 23, 42, 0.15);
            transition: right 0.3s ease-out;
            z-index: 1055;
            display: flex;
            flex-direction: column;
            padding: 24px 28px;
            overflow-y: auto;
        }

        .offcanvas-custom.active {
            right: 0;
        }

        .offcanvas-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.45);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease-out;
        }

        .offcanvas-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .offcanvas-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 32px;
            line-height: 1;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            padding: 4px 8px;
            border-radius: 6px;
        }

        .offcanvas-close:hover {
            color: var(--text);
            background: var(--bg);
        }

        .offcanvas-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 16px;
        }

        .offcanvas-nav a {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            padding: 14px 16px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            display: block;
            border: 1px solid transparent;
        }

        .offcanvas-nav a:hover,
        .offcanvas-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-color: var(--border);
        }

        .offcanvas-nav a:not(:last-child) {
            border-bottom: 1px solid var(--bg);
        }

        main {
            min-height: 60vh;
        }

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

        .page-section-sm {
            padding: 48px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 640px;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

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

        .breadcrumb-custom a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }

        .breadcrumb-custom .separator {
            color: var(--border);
            user-select: none;
        }

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

        .category-h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .category-intro {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.75;
        }

        .filter-bar {
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            margin-bottom: 32px;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            border: 1px solid var(--border);
        }

        .filter-bar .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
        }

        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg);
            padding: 6px 14px;
            border-radius: 20px;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            user-select: none;
        }

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

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

        .filter-sort {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .filter-sort label {
            font-size: 13px;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .filter-sort select {
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--bg);
            font-size: 13px;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font);
        }

        .filter-sort select:hover {
            border-color: var(--primary);
        }

        .filter-sort select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .article-item {
            background: var(--card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            gap: 20px;
            padding: 20px;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

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

        .article-thumb {
            flex: 0 0 220px;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--bg);
        }

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

        .article-item:hover .article-thumb img {
            transform: scale(1.03);
        }

        .article-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .article-meta .badge-custom {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 2px 10px;
            border-radius: 4px;
            letter-spacing: 0.3px;
        }

        .article-meta .date {
            white-space: nowrap;
        }

        .article-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
            transition: var(--transition);
        }

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

        .article-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .article-read {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .article-stats {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .article-stats span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            margin-top: 24px;
            border: 1px solid var(--border);
            background: var(--card);
        }

        .view-more-link:hover {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
        }

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

        .tag-cloud .tag-item {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--card);
            padding: 8px 16px;
            border-radius: 24px;
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: default;
            user-select: none;
        }

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

        .tag-cloud .tag-item.hot {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .side-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            border: 1px solid var(--border);
        }

        .side-card .side-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--bg);
        }

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

        .side-list-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            border-bottom: 1px solid var(--bg);
            transition: var(--transition);
        }

        .side-list-item:last-child {
            border-bottom: none;
        }

        .side-list-item:hover {
            padding-left: 4px;
        }

        .side-list-item .side-list-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            line-height: 1.5;
        }

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

        .side-list-item .side-list-date {
            font-size: 12px;
            color: var(--text-secondary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .subscription-banner {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
        }

        .subscription-banner .sub-text {
            flex: 1;
            min-width: 220px;
        }

        .subscription-banner .sub-title {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .subscription-banner .sub-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
        }

        .btn-subscribe {
            background: #fff;
            color: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-subscribe:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }

        .quick-nav {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .quick-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            background: var(--card);
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .quick-nav a:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-light);
        }

        .site-footer {
            background: var(--card);
            border-top: 1px solid var(--border);
            padding: 32px 0;
            margin-top: 0;
        }

        .site-footer .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-copyright {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
        }

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

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

        .footer-separator {
            color: var(--border);
            user-select: none;
        }

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

        @media (max-width: 991.98px) {
            .article-thumb {
                flex: 0 0 160px;
            }
            .container-custom {
                padding: 0 16px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --section-padding: 56px 0;
            }
            .category-h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 22px;
            }
            .article-item {
                flex-direction: column;
                gap: 14px;
                padding: 16px;
            }
            .article-thumb {
                flex: 0 0 auto;
                width: 100%;
                aspect-ratio: 16/9;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 14px 16px;
            }
            .filter-sort {
                margin-left: 0;
                width: 100%;
                justify-content: space-between;
            }
            .filter-sort select {
                flex: 1;
            }
            .subscription-banner {
                padding: 24px;
                flex-direction: column;
                text-align: center;
            }
            .site-footer .container-custom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-beian {
                justify-content: center;
            }
            .article-title {
                font-size: 16px;
            }
        }

        @media (max-width: 575.98px) {
            .container-custom {
                padding: 0 12px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .btn-header-cta {
                padding: 8px 14px;
                font-size: 13px;
            }
            .btn-hamburger {
                width: 36px;
                height: 36px;
            }
            .offcanvas-custom {
                padding: 16px 20px;
            }
            .offcanvas-nav a {
                font-size: 18px;
                padding: 12px 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .quick-nav a {
                font-size: 13px;
                padding: 8px 14px;
            }
            .tag-cloud .tag-item {
                font-size: 12px;
                padding: 6px 12px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1A56DB;
            --primary-hover: #1E4FC7;
            --primary-light: #E8F0FE;
            --accent: #38BDF8;
            --accent-cyan: #22D3EE;
            --highlight: #F59E0B;
            --bg: #F5F7FA;
            --bg-alt: #F8FAFC;
            --card: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 2px 6px rgba(15, 23, 42, 0.08), 0 12px 32px rgba(15, 23, 42, 0.08);
            --transition: all 0.25s ease-out;
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding: 80px 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* 头部 */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1030;
            min-height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .brand-logo:hover {
            color: var(--primary-hover);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-hamburger {
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 42px;
            height: 42px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: var(--transition);
            padding: 0;
        }
        .btn-hamburger:hover {
            background: var(--primary-light);
            border-color: var(--primary);
        }
        .btn-hamburger .bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .btn-hamburger:hover .bar {
            background: var(--primary);
        }
        .btn-header-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            display: inline-block;
        }
        .btn-header-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.28);
            color: #fff;
        }
        /* 抽屉导航 */
        .offcanvas-custom {
            position: fixed;
            top: 0;
            right: -100%;
            width: min(420px, 100vw);
            height: 100vh;
            background: #fff;
            box-shadow: -8px 0 40px rgba(15, 23, 42, 0.15);
            transition: right 0.3s ease-out;
            z-index: 1055;
            display: flex;
            flex-direction: column;
            padding: 24px 28px;
            overflow-y: auto;
        }
        .offcanvas-custom.active {
            right: 0;
        }
        .offcanvas-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.45);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease-out;
        }
        .offcanvas-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        .offcanvas-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 32px;
            line-height: 1;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            padding: 4px 8px;
            border-radius: 6px;
        }
        .offcanvas-close:hover {
            color: var(--text);
            background: var(--bg);
        }
        .offcanvas-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 16px;
        }
        .offcanvas-nav a {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            padding: 14px 16px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            display: block;
            border: 1px solid transparent;
        }
        .offcanvas-nav a:hover,
        .offcanvas-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-color: var(--border);
        }
        .offcanvas-brand {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 24px;
            display: block;
        }
        /* 按钮 */
        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
        }
        .btn-primary-custom:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.28);
            color: #fff;
        }
        .btn-secondary-custom {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
        }
        .btn-secondary-custom:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        /* 分类页板块 */
        .cat-section {
            padding: 48px 0;
        }
        .cat-section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 720px;
            line-height: 1.7;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom .separator {
            color: var(--border);
        }
        .breadcrumb-custom .current {
            color: var(--text);
            font-weight: 500;
        }
        /* 筛选工具栏 */
        .filter-toolbar {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }
        .filter-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover,
        .filter-tag.active {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }
        .filter-select {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--card);
            font-size: 14px;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
            min-width: 140px;
        }
        .filter-select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12);
        }
        /* 列表主体 */
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .guide-list-item {
            display: flex;
            gap: 24px;
            background: var(--card);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
            align-items: flex-start;
        }
        .guide-list-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(26, 86, 219, 0.2);
        }
        .guide-list-img {
            width: 200px;
            min-width: 200px;
            height: 140px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }
        .guide-list-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-list-item:hover .guide-list-img img {
            transform: scale(1.04);
        }
        .guide-list-content {
            flex: 1;
            min-width: 0;
        }
        .guide-list-tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            background: var(--primary-light);
            color: var(--primary);
            margin-bottom: 8px;
        }
        .guide-list-tag.tag-accent {
            background: #FFF7ED;
            color: var(--highlight);
        }
        .guide-list-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.45;
            transition: var(--transition);
        }
        .guide-list-item:hover .guide-list-title {
            color: var(--primary);
        }
        .guide-list-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-list-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .guide-list-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        /* 标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: flex-start;
        }
        .tag-cloud-item {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--card);
            border: 1px solid var(--border);
            cursor: default;
            transition: var(--transition);
            display: inline-block;
        }
        .tag-cloud-item:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }
        /* 专题卡片 */
        .topic-card-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .topic-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .topic-card-img {
            height: 180px;
            overflow: hidden;
        }
        .topic-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .topic-card:hover .topic-card-img img {
            transform: scale(1.05);
        }
        .topic-card-body {
            padding: 18px 20px 20px;
        }
        .topic-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
            transition: var(--transition);
        }
        .topic-card:hover .topic-card-title {
            color: var(--primary);
        }
        .topic-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        /* 最近更新 */
        .recent-list {
            background: var(--card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            overflow: hidden;
        }
        .recent-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 20px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .recent-list-item:last-child {
            border-bottom: none;
        }
        .recent-list-item:hover {
            background: var(--bg);
        }
        .recent-list-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-cyan);
            flex-shrink: 0;
        }
        .recent-list-dot.dot-highlight {
            background: var(--highlight);
        }
        .recent-list-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            flex: 1;
            min-width: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: var(--transition);
        }
        .recent-list-link:hover {
            color: var(--primary);
        }
        .recent-list-date {
            font-size: 13px;
            color: var(--text-secondary);
            flex-shrink: 0;
        }
        /* 订阅CTA */
        .subscribe-cta {
            background: linear-gradient(135deg, #1A56DB 0%, #1E4FC7 100%);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
        }
        .subscribe-cta-content h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .subscribe-cta-content p {
            color: rgba(255, 255, 255, 0.82);
            font-size: 14px;
            margin-bottom: 0;
            line-height: 1.6;
        }
        .btn-subscribe {
            background: #fff;
            color: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-subscribe:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
            color: var(--primary-hover);
        }
        /* 快捷锚点 */
        .quick-anchors {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .quick-anchor-link {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            background: var(--card);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .quick-anchor-link:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        /* 页脚 */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 28px 0;
            margin-top: 24px;
        }
        .site-footer .container-custom {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-copyright {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
        }
        .footer-links a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-separator {
            color: var(--border);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        /* 响应式 */
        @media (max-width: 992px) {
            .topic-card-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .guide-list-item {
                flex-direction: column;
                gap: 16px;
                padding: 16px;
            }
            .guide-list-img {
                width: 100%;
                min-width: 100%;
                height: 180px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
            }
            .topic-card-row {
                grid-template-columns: 1fr;
            }
            .subscribe-cta {
                padding: 28px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
            .section-title {
                font-size: 22px;
            }
            .cat-section {
                padding: 36px 0;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding: 0 16px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .btn-header-cta {
                padding: 7px 12px;
                font-size: 12px;
            }
            .btn-hamburger {
                width: 36px;
                height: 36px;
            }
            .guide-list-item {
                padding: 12px;
            }
            .guide-list-title {
                font-size: 16px;
            }
            .guide-list-desc {
                font-size: 13px;
            }
            .topic-card-img {
                height: 150px;
            }
            .offcanvas-custom {
                padding: 16px 20px;
            }
            .offcanvas-nav a {
                font-size: 18px;
                padding: 12px 14px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1A56DB;
            --primary-hover: #1E4FC7;
            --primary-light: #E8F0FE;
            --accent: #38BDF8;
            --accent-cyan: #22D3EE;
            --highlight: #F59E0B;
            --bg: #F5F7FA;
            --bg-alt: #F8FAFC;
            --card: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 2px 6px rgba(15, 23, 42, 0.08), 0 12px 32px rgba(15, 23, 42, 0.08);
            --transition: all 0.25s ease-out;
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding: 72px 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 15px;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1030;
            min-height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .brand-logo:hover {
            color: var(--primary-hover);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-hamburger {
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 42px;
            height: 42px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: var(--transition);
            padding: 0;
        }
        .btn-hamburger:hover {
            background: var(--primary-light);
            border-color: var(--primary);
        }
        .btn-hamburger .bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .btn-hamburger:hover .bar {
            background: var(--primary);
        }
        .btn-header-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-header-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.28);
            color: #fff;
        }
        /* Offcanvas */
        .offcanvas-custom {
            position: fixed;
            top: 0;
            right: -100%;
            width: min(420px, 100vw);
            height: 100vh;
            background: #fff;
            box-shadow: -8px 0 40px rgba(15, 23, 42, 0.15);
            transition: right 0.3s ease-out;
            z-index: 1055;
            display: flex;
            flex-direction: column;
            padding: 24px 28px;
            overflow-y: auto;
        }
        .offcanvas-custom.active {
            right: 0;
        }
        .offcanvas-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.45);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease-out;
        }
        .offcanvas-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        .offcanvas-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 32px;
            line-height: 1;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            padding: 4px 8px;
            border-radius: 6px;
        }
        .offcanvas-close:hover {
            color: var(--text);
            background: var(--bg);
        }
        .offcanvas-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 16px;
        }
        .offcanvas-nav a {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            padding: 14px 16px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            display: block;
            border: 1px solid transparent;
        }
        .offcanvas-nav a:hover,
        .offcanvas-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-color: var(--primary-light);
        }
        .offcanvas-footer-info {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-secondary);
            text-align: center;
        }
        /* Page hero / breadcrumb band */
        .page-band {
            background: linear-gradient(135deg, #FFFFFF 0%, #F0F5FF 100%);
            border-bottom: 1px solid var(--border);
            padding: 40px 0 32px;
            margin-bottom: 48px;
        }
        .breadcrumb-custom {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: var(--border);
            margin: 0 6px;
            font-size: 12px;
        }
        .page-band h1 {
            font-size: 32px;
            font-weight: 700;
            margin: 0;
            color: var(--text);
            line-height: 1.35;
        }
        .page-band .subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 10px;
            max-width: 680px;
        }
        /* Section base */
        .section-block {
            padding: 36px 0;
        }
        .section-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title::before {
            content: '';
            width: 4px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
            flex-shrink: 0;
        }
        .section-lead {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }
        /* Toolbar */
        .toolbar-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: var(--shadow-sm);
        }
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .filter-tag {
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid var(--border);
            background: var(--bg-alt);
            font-size: 13px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover,
        .filter-tag.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        .sort-select {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 14px;
            color: var(--text);
            background: var(--card);
            min-width: 140px;
            cursor: pointer;
            transition: var(--transition);
        }
        .sort-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12);
        }
        /* Article list */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .article-row {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: row;
            gap: 20px;
            padding: 20px 24px;
        }
        .article-row:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #CBD5E1;
        }
        .article-thumb {
            flex: 0 0 200px;
            max-width: 200px;
            height: 140px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-alt);
        }
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .article-row:hover .article-thumb img {
            transform: scale(1.03);
        }
        .article-info {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }
        .article-cat-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 500;
            margin-bottom: 8px;
            align-self: flex-start;
        }
        .article-row h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 8px;
            line-height: 1.5;
        }
        .article-row h3 a {
            color: var(--text);
        }
        .article-row h3 a:hover {
            color: var(--primary);
        }
        .article-row .excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-meta {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .view-more-link {
            font-size: 14px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .view-more-link::after {
            content: '→';
            transition: var(--transition);
        }
        .view-more-link:hover::after {
            transform: translateX(4px);
        }
        /* Tag cloud */
        .tag-cloud-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            box-shadow: var(--shadow-sm);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-pill {
            display: inline-block;
            padding: 7px 16px;
            border-radius: 20px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition);
        }
        .tag-pill:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        .tag-pill.hot {
            background: #FFF8ED;
            border-color: #FDE9C8;
            color: #C07A0B;
        }
        .tag-pill.hot:hover {
            background: #FFF3DB;
            border-color: var(--highlight);
            color: #B26800;
        }
        /* Topic cards */
        .topic-row {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }
        .topic-card-h {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .topic-card-h:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .topic-card-h .topic-img {
            width: 100%;
            height: 160px;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .topic-card-h .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .topic-card-h:hover .topic-img img {
            transform: scale(1.04);
        }
        .topic-card-h .topic-body {
            padding: 16px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-card-h h4 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 8px;
            line-height: 1.45;
        }
        .topic-card-h h4 a {
            color: var(--text);
        }
        .topic-card-h h4 a:hover {
            color: var(--primary);
        }
        .topic-card-h p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0 0 12px;
            flex: 1;
        }
        /* Sidebar recent */
        .sidebar-recent {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px 26px;
        }
        .sidebar-recent .section-title {
            font-size: 19px;
        }
        .recent-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .recent-list li {
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border);
        }
        .recent-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .recent-list a {
            font-size: 14px;
            color: var(--text);
            font-weight: 500;
            line-height: 1.5;
            display: block;
        }
        .recent-list a:hover {
            color: var(--primary);
        }
        .recent-list .recent-date {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
            display: block;
        }
        /* CTA banner */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary) 0%, #2563EB 100%);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            box-shadow: 0 12px 32px rgba(26, 86, 219, 0.3);
        }
        .cta-banner h2 {
            font-size: 22px;
            font-weight: 700;
            margin: 0 0 8px;
            color: #fff;
        }
        .cta-banner p {
            margin: 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.88);
            max-width: 500px;
        }
        .btn-cta-light {
            background: #fff;
            color: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            padding: 11px 24px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-cta-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
            color: var(--primary-hover);
        }
        /* Quick anchors */
        .quick-anchors {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .quick-anchors span {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            margin-right: 4px;
        }
        .btn-anchor {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 7px 14px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-anchor:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #94A3B8;
            padding: 28px 0;
            margin-top: 64px;
            font-size: 13px;
        }
        .site-footer .container-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .footer-copyright {
            color: #E2E8F0;
            font-weight: 500;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a {
            color: #94A3B8;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-separator {
            color: #475569;
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            color: #94A3B8;
        }
        @media (max-width: 992px) {
            .article-thumb {
                flex: 0 0 160px;
                max-width: 160px;
                height: 120px;
            }
            .cta-banner {
                padding: 30px 28px;
            }
            .topic-row {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }
        }
        @media (max-width: 768px) {
            .page-band h1 {
                font-size: 26px;
            }
            .page-band {
                padding: 28px 0 24px;
            }
            .article-row {
                flex-direction: column;
                padding: 16px;
                gap: 12px;
            }
            .article-thumb {
                flex: 0 0 auto;
                max-width: 100%;
                height: 180px;
            }
            .toolbar-card {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
            }
            .site-footer .container-custom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-links {
                margin: 4px 0;
            }
            .footer-beian {
                justify-content: center;
            }
            .offcanvas-custom {
                width: 100vw;
                padding: 20px 20px;
            }
            .section-title {
                font-size: 20px;
            }
            .topic-row {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .page-band h1 {
                font-size: 22px;
            }
            .article-row h3 {
                font-size: 16px;
            }
            .cta-banner h2 {
                font-size: 18px;
            }
            .brand-logo {
                font-size: 19px;
            }
            .btn-header-cta {
                padding: 7px 12px;
                font-size: 13px;
            }
            .container-custom {
                padding: 0 16px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1A56DB;
            --primary-hover: #1E4FC7;
            --primary-light: #E8F0FE;
            --accent: #38BDF8;
            --accent-cyan: #22D3EE;
            --highlight: #F59E0B;
            --bg: #F5F7FA;
            --bg-alt: #F8FAFC;
            --card: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 2px 6px rgba(15, 23, 42, 0.08), 0 12px 32px rgba(15, 23, 42, 0.08);
            --transition: all 0.25s ease-out;
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding: 80px 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1030;
            min-height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .brand-logo:hover {
            color: var(--primary-hover);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-hamburger {
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 42px;
            height: 42px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: var(--transition);
            padding: 0;
        }
        .btn-hamburger:hover {
            background: var(--primary-light);
            border-color: var(--primary);
        }
        .btn-hamburger .bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .btn-hamburger:hover .bar {
            background: var(--primary);
        }
        .btn-header-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            display: inline-block;
        }
        .btn-header-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.28);
            color: #fff;
        }
        /* Offcanvas Drawer */
        .offcanvas-custom {
            position: fixed;
            top: 0;
            right: -100%;
            width: min(420px, 100vw);
            height: 100vh;
            background: #fff;
            box-shadow: -8px 0 40px rgba(15, 23, 42, 0.15);
            transition: right 0.3s ease-out;
            z-index: 1055;
            display: flex;
            flex-direction: column;
            padding: 24px 28px;
            overflow-y: auto;
        }
        .offcanvas-custom.active {
            right: 0;
        }
        .offcanvas-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.45);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease-out;
        }
        .offcanvas-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        .offcanvas-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 32px;
            line-height: 1;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            padding: 4px 8px;
            border-radius: 6px;
        }
        .offcanvas-close:hover {
            color: var(--text);
            background: var(--bg);
        }
        .offcanvas-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 16px;
        }
        .offcanvas-nav a {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            padding: 14px 16px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            display: block;
            border: 1px solid transparent;
        }
        .offcanvas-nav a:hover,
        .offcanvas-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-color: rgba(26, 86, 219, 0.12);
        }
        /* Main */
        main {
            min-height: 60vh;
        }
        .section {
            padding: var(--section-padding);
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 680px;
        }
        /* Breadcrumb */
        .breadcrumb-section {
            padding: 32px 0 0;
            background: var(--bg);
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom .separator {
            color: var(--border);
            user-select: none;
        }
        .breadcrumb-custom .current {
            color: var(--primary);
            font-weight: 500;
        }
        .page-h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            margin: 20px 0 12px;
            letter-spacing: 0.5px;
        }
        .page-h1-sub {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }
        /* Filter Toolbar */
        .filter-toolbar {
            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;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }
        .filter-toolbar .filter-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
        }
        .filter-toolbar .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-toolbar select {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 13px;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
            min-width: 140px;
            font-family: var(--font);
        }
        .filter-toolbar select:hover {
            border-color: var(--primary);
        }
        .filter-toolbar select:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .filter-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            font-family: var(--font);
        }
        .filter-tag:hover {
            color: var(--primary);
            background: var(--primary-light);
            border-color: var(--primary);
        }
        .filter-tag.active-tag {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
        }
        /* List Body */
        .brand-list-wrap {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }
        .brand-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .brand-list-item {
            display: flex;
            gap: 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            align-items: flex-start;
        }
        .brand-list-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(26, 86, 219, 0.25);
            transform: translateY(-2px);
        }
        .brand-list-item .list-thumb {
            flex-shrink: 0;
            width: 180px;
            height: 120px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg);
        }
        .brand-list-item .list-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .brand-list-item:hover .list-thumb img {
            transform: scale(1.04);
        }
        .brand-list-item .list-content {
            flex: 1;
            min-width: 0;
        }
        .brand-list-item .list-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
            transition: var(--transition);
        }
        .brand-list-item .list-title a {
            color: var(--text);
        }
        .brand-list-item .list-title a:hover {
            color: var(--primary);
        }
        .brand-list-item .list-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .brand-list-item .list-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .brand-list-item .list-meta .badge-cat {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
        }
        .brand-list-item .list-meta .date {
            color: var(--text-secondary);
        }
        .view-more-btn {
            display: inline-block;
            padding: 10px 24px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            background: transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            align-self: flex-start;
            margin-top: 8px;
            font-family: var(--font);
        }
        .view-more-btn:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-hover);
            transform: translateY(-2px);
        }
        /* Sidebar */
        .sidebar-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 20px 16px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }
        .sidebar-card .sidebar-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
            letter-spacing: 0.3px;
        }
        .sidebar-card .sidebar-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-card .sidebar-list li {
            padding: 0;
            margin: 0;
        }
        .sidebar-card .sidebar-list a {
            display: block;
            font-size: 14px;
            color: var(--text);
            line-height: 1.5;
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border-left: 3px solid transparent;
        }
        .sidebar-card .sidebar-list a:hover {
            color: var(--primary);
            background: var(--primary-light);
            border-left-color: var(--primary);
        }
        .sidebar-card .sidebar-list .side-date {
            display: block;
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        /* Tags Cloud */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tags-cloud .tag-item {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--card);
            border: 1px solid var(--border);
            cursor: default;
            transition: var(--transition);
        }
        .tags-cloud .tag-item:hover {
            color: var(--primary);
            background: var(--primary-light);
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .tags-cloud .tag-item.hot-tag {
            color: var(--highlight);
            border-color: rgba(245, 158, 11, 0.3);
            background: rgba(245, 158, 11, 0.06);
        }
        /* Topic Cards */
        .topic-card-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .topic-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: block;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(26, 86, 219, 0.2);
        }
        .topic-card .topic-img {
            width: 100%;
            height: 180px;
            overflow: hidden;
            background: var(--bg);
        }
        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .topic-card:hover .topic-img img {
            transform: scale(1.05);
        }
        .topic-card .topic-body {
            padding: 16px 18px 18px;
        }
        .topic-card .topic-label {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(56, 189, 248, 0.1);
            margin-bottom: 8px;
        }
        .topic-card .topic-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* Subscribe CTA */
        .subscribe-banner {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            position: relative;
            overflow: hidden;
        }
        .subscribe-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent-cyan));
        }
        .subscribe-banner .subscribe-text {
            flex: 1;
            min-width: 240px;
        }
        .subscribe-banner .subscribe-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .subscribe-banner .subscribe-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }
        .subscribe-banner .btn-subscribe {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            font-family: var(--font);
        }
        .subscribe-banner .btn-subscribe:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(26, 86, 219, 0.3);
        }
        /* Quick Anchor */
        .quick-anchor-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .quick-anchor-row .anchor-btn {
            display: inline-block;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            background: var(--card);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font);
        }
        .quick-anchor-row .anchor-btn:hover {
            color: var(--primary);
            background: var(--primary-light);
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        /* Footer */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 28px 0;
            margin-top: 0;
        }
        .site-footer .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-copyright {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
        }
        .footer-links a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-separator {
            color: var(--border);
        }
        .footer-beian {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
        }
        /* Responsive */
        @media (max-width: 992px) {
            .brand-list-wrap {
                grid-template-columns: 1fr;
            }
            .topic-card-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .brand-list-item .list-thumb {
                width: 100%;
                height: 180px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-padding: 56px 0;
            }
            .container-custom {
                padding: 0 16px;
            }
            .page-h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 21px;
            }
            .topic-card-row {
                grid-template-columns: 1fr;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer .container-custom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .footer-beian {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .footer-links {
                gap: 8px;
            }
            .brand-list-item .list-thumb {
                height: 160px;
            }
        }
        @media (max-width: 520px) {
            .page-h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 19px;
            }
            .btn-header-cta {
                padding: 8px 14px;
                font-size: 13px;
            }
            .brand-list-item .list-thumb {
                height: 140px;
            }
            .subscribe-banner {
                padding: 24px 20px;
            }
            .subscribe-banner .btn-subscribe {
                width: 100%;
                text-align: center;
            }
            .topic-card .topic-img {
                height: 150px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}