/* roulang page: index */
:root {
            --primary: #0A2540;
            --primary-light: #16385C;
            --accent: #00D4B2;
            --accent-hover: #00B89A;
            --warning: #FF5A5F;
            --bg-main: #F8FAFC;
            --surface: #FFFFFF;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.05), 0 4px 12px rgba(10, 37, 64, 0.03);
            --shadow-hover: 0 8px 24px rgba(10, 37, 64, 0.08), 0 2px 6px rgba(10, 37, 64, 0.04);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        body {
            font-family: var(--font-family);
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.65;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }

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

        button, input, select {
            font-family: inherit;
        }

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

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            height: 68px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo .dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .main-nav {
            display: flex;
            gap: 28px;
            align-items: center;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
        }
        .btn-header-cta {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            padding: 8px 18px;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .btn-header-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }

        /* 基础 Section */
        .page-section {
            padding: 72px 0;
        }
        .section-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 48px;
        }
        .section-badge {
            display: inline-block;
            background: rgba(10, 37, 64, 0.06);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 30px;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.6;
        }

        /* Hero 区域 */
        .hero-section {
            position: relative;
            background-color: #0B1928;
            background-image: linear-gradient(rgba(10, 37, 64, 0.92), rgba(10, 37, 64, 0.96)), url('/assets/images/8dbd7eff0dfca1a2.webp');
            background-size: cover;
            background-position: center;
            color: #FFFFFF;
            padding: 84px 0 96px;
            overflow: hidden;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 38px;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 20px;
            color: #FFFFFF;
        }
        .hero-content .hero-intro {
            font-size: 16px;
            color: #CBD5E1;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-tags {
            display: flex;
            gap: 12px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .hero-tag-item {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #E2E8F0;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            font-size: 16px;
            display: inline-block;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(0, 212, 178, 0.4);
        }
        .btn-outline {
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #FFFFFF;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            font-size: 16px;
            display: inline-block;
            transition: all 0.25s ease;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #FFFFFF;
        }
        .hero-form-card {
            background: var(--surface);
            border-radius: var(--radius-xl);
            padding: 32px;
            color: var(--text-dark);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hero-form-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .hero-form-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-body);
        }
        .form-input, .form-select {
            width: 100%;
            height: 42px;
            padding: 8px 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s ease;
        }
        .form-input:focus, .form-select:focus {
            border-color: var(--primary);
        }
        .form-btn-submit {
            width: 100%;
            background: var(--primary);
            color: #FFFFFF;
            border: none;
            height: 44px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            cursor: pointer;
            margin-top: 10px;
            transition: background 0.2s ease;
        }
        .form-btn-submit:hover {
            background: var(--primary-light);
        }

        /* 板块 2：信任数据条 */
        .trust-metrics-section {
            background: var(--surface);
            padding: 32px 0;
            border-bottom: 1px solid var(--border);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .metric-item {
            text-align: center;
            padding: 12px;
            border-right: 1px solid var(--border);
        }
        .metric-item:last-child {
            border-right: none;
        }
        .metric-value {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
            font-feature-settings: "tnum";
        }
        .metric-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 2px;
        }
        .metric-sub {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 板块 3：分类核心入口 */
        .category-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .cat-icon-box {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: rgba(10, 37, 64, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .category-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .category-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
            margin-bottom: 24px;
            flex-grow: 1;
        }
        .cat-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .cat-link:hover {
            color: var(--accent-hover);
        }

        /* 板块 4：开户流程 */
        .timeline-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .step-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .step-number {
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            margin-bottom: 16px;
        }
        .step-item h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .step-note {
            margin-top: 12px;
            font-size: 12px;
            color: var(--text-dark);
            background: #F1F5F9;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
        }

        /* 板块 5：账户矩阵对比 */
        .account-matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .matrix-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .matrix-card.featured {
            border: 2px solid var(--accent);
            position: relative;
            box-shadow: var(--shadow-hover);
        }
        .featured-tag {
            position: absolute;
            top: -12px;
            right: 24px;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
        }
        .matrix-header h3 {
            font-size: 20px;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .matrix-header p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .matrix-specs {
            list-style: none;
            margin-bottom: 24px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }
        .matrix-specs li {
            font-size: 14px;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border);
            display: flex;
            justify-content: space-between;
        }
        .matrix-specs li span:first-child {
            color: var(--text-muted);
        }
        .matrix-specs li span:last-child {
            font-weight: 600;
            color: var(--text-dark);
        }

        /* 板块 6：利息与测算器 */
        .calculator-wrapper {
            background: var(--surface);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }
        .calc-controls .calc-row {
            margin-bottom: 24px;
        }
        .calc-controls label {
            display: flex;
            justify-content: space-between;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .calc-slider {
            width: 100%;
            height: 6px;
            background: #E2E8F0;
            border-radius: 3px;
            outline: none;
            -webkit-appearance: none;
        }
        .calc-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
            border: 2px solid var(--accent);
        }
        .calc-result-box {
            background: var(--bg-main);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
        }
        .result-item {
            margin-bottom: 18px;
        }
        .result-item:last-child {
            margin-bottom: 0;
        }
        .result-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }
        .result-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            font-feature-settings: "tnum";
        }

        /* 板块 7：资金隔离架构 */
        .security-arch-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .arch-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .arch-points {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .point-card {
            background: var(--surface);
            border: 1px solid var(--border);
            padding: 20px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        .point-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .point-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 板块 8：实盘穿透机制 */
        .penetration-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .dark-card {
            background: #0B1928;
            color: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 30px;
            box-shadow: var(--shadow-sm);
        }
        .dark-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .dark-card p {
            font-size: 13px;
            color: #94A3B8;
            line-height: 1.6;
        }

        /* 板块 9：移动客户端 */
        .terminal-grid {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 40px;
            align-items: center;
        }
        .terminal-img img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
        }
        .features-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 24px;
        }
        .feat-item {
            background: var(--surface);
            border: 1px solid var(--border);
            padding: 18px;
            border-radius: var(--radius-md);
        }
        .feat-item h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .feat-item p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 板块 10：CMS 资讯列表 */
        .cms-section-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .cms-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.25s ease;
        }
        .cms-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .cms-meta {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .cms-badge {
            background: #F1F5F9;
            color: var(--primary);
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }
        .cms-card h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-dark);
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cms-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex-grow: 1;
        }
        .cms-read-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .cms-empty-state {
            grid-column: span 3;
            text-align: center;
            padding: 48px;
            background: var(--surface);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            color: var(--text-muted);
            font-size: 14px;
        }

        /* 板块 11：风险提示与误区 */
        .risks-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .risk-item {
            background: #FFF5F5;
            border: 1px solid #FED7D7;
            border-radius: var(--radius-lg);
            padding: 20px;
        }
        .risk-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: #C53030;
            margin-bottom: 8px;
        }
        .risk-item p {
            font-size: 12px;
            color: #742A2A;
            line-height: 1.5;
        }

        /* 板块 12：FAQ */
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
        }
        .faq-q {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .faq-a {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 板块 13：资质展示 */
        .cert-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .cert-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .cert-icon {
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .cert-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .cert-card p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 板块 14：CTA */
        .bottom-cta-banner {
            background: #0B1928;
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            color: #FFFFFF;
        }
        .bottom-cta-banner h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .bottom-cta-banner p {
            font-size: 15px;
            color: #94A3B8;
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.6;
        }

        /* 全局页脚 */
        .site-footer {
            background: #061727;
            color: #94A3B8;
            padding: 64px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 13px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-col h4 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-col p {
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a:hover {
            color: #FFFFFF;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 12px;
            color: #64748B;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metric-item:nth-child(2) {
                border-right: none;
            }
            .category-cards-grid,
            .account-matrix-grid,
            .penetration-grid,
            .cms-section-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline-steps,
            .risks-grid,
            .cert-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .calculator-wrapper {
                grid-template-columns: 1fr;
            }
            .terminal-grid,
            .security-arch-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .page-section {
                padding: 44px 0;
            }
            .site-header {
                height: auto;
                padding: 12px 0;
            }
            .header-inner {
                flex-direction: column;
                gap: 12px;
            }
            .main-nav {
                flex-wrap: wrap;
                justify-content: center;
                gap: 16px;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .category-cards-grid,
            .account-matrix-grid,
            .penetration-grid,
            .cms-section-grid,
            .timeline-steps,
            .risks-grid,
            .cert-grid,
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .metric-item {
                border-right: none;
                border-bottom: 1px solid var(--border);
            }
            .metric-item:last-child {
                border-bottom: none;
            }
            .features-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: article */
:root {
            --primary: #0A2540;
            --primary-light: #16385C;
            --accent: #00D4B2;
            --accent-hover: #00B89A;
            --warning: #FF5A5F;
            --bg-main: #F8FAFC;
            --surface: #FFFFFF;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.05), 0 4px 12px rgba(10, 37, 64, 0.03);
            --shadow-hover: 0 8px 24px rgba(10, 37, 64, 0.08), 0 2px 6px rgba(10, 37, 64, 0.04);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.65;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            height: 68px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo .dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .main-nav {
            display: flex;
            gap: 28px;
            align-items: center;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
        }
        .btn-header-cta {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            padding: 8px 18px;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .btn-header-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }
        .article-page-wrap {
            padding: 40px 0 72px;
        }
        .article-main-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 32px;
        }
        .article-breadcrumbs {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .article-breadcrumbs a:hover {
            color: var(--primary);
        }
        .article-header {
            border-bottom: 1px solid var(--border);
            padding-bottom: 28px;
            margin-bottom: 32px;
        }
        .article-title {
            font-size: 32px;
            line-height: 1.35;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 20px;
        }
        .article-meta-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .article-meta-badge {
            background: rgba(10, 37, 64, 0.06);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }
        .article-abstract {
            background: #F1F5F9;
            border-left: 4px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: 36px;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
        }
        .article-abstract-title {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .article-body-content {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            word-break: break-word;
        }
        .article-body-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }
        .article-body-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 32px 0 14px;
        }
        .article-body-content p {
            margin-bottom: 20px;
        }
        .article-body-content ul, .article-body-content ol {
            margin-bottom: 24px;
            padding-left: 24px;
        }
        .article-body-content li {
            margin-bottom: 8px;
        }
        .article-body-content blockquote {
            border-left: 4px solid var(--primary-light);
            background: #F8FAFC;
            padding: 16px 20px;
            margin: 24px 0;
            color: var(--text-muted);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }
        .article-body-content img {
            border-radius: var(--radius-md);
            margin: 28px auto;
            border: 1px solid var(--border);
        }
        .risk-warning-box {
            background: #FFF1F2;
            border: 1px solid #FECDD3;
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin: 40px 0 32px;
            color: #9F1239;
            font-size: 14px;
            line-height: 1.65;
        }
        .risk-warning-box strong {
            display: block;
            margin-bottom: 6px;
            font-size: 15px;
        }
        .article-footer-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            margin-top: 36px;
        }
        .tag-pill {
            background: var(--bg-main);
            border: 1px solid var(--border);
            color: var(--text-muted);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-size: 13px;
        }
        .pager-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 32px;
        }
        .pager-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all 0.25s ease;
        }
        .pager-card:hover {
            border-color: var(--accent);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .pager-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .pager-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .rel-section-header {
            margin: 48px 0 24px;
        }
        .rel-section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
        }
        .rel-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 48px;
        }
        .rel-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-sm);
        }
        .rel-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .rel-card-img {
            height: 160px;
            width: 100%;
            object-fit: cover;
            background: #E2E8F0;
        }
        .rel-card-body {
            padding: 20px;
        }
        .rel-card-tag {
            font-size: 12px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 8px;
        }
        .rel-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .rel-card-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cta-bottom-bar {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 40px;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }
        .cta-bar-text h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #FFFFFF;
        }
        .cta-bar-text p {
            font-size: 14px;
            color: #CBD5E1;
            margin: 0;
        }
        .btn-cta-large {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            white-space: nowrap;
            transition: all 0.2s ease;
        }
        .btn-cta-large:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }
        .empty-article-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
        }
        .empty-article-box h2 {
            font-size: 22px;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .empty-article-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .site-footer {
            background: #061727;
            color: #94A3B8;
            padding: 64px 0 24px;
            border-top: 1px solid #1E293B;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-col h4 {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-col p {
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: #94A3B8;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: #64748B;
        }
        @media (max-width: 992px) {
            .rel-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-bottom-bar {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 768px) {
            .article-main-card {
                padding: 24px 16px;
            }
            .article-title {
                font-size: 24px;
            }
            .pager-cards {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .main-nav {
                display: none;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0A2540;
            --primary-light: #16385C;
            --accent: #00D4B2;
            --accent-hover: #00B89A;
            --warning: #FF5A5F;
            --bg-main: #F8FAFC;
            --surface: #FFFFFF;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.05), 0 4px 12px rgba(10, 37, 64, 0.03);
            --shadow-hover: 0 8px 24px rgba(10, 37, 64, 0.08), 0 2px 6px rgba(10, 37, 64, 0.04);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.65;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            height: 68px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo .dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .main-nav {
            display: flex;
            gap: 28px;
            align-items: center;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
        }
        .btn-header-cta {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            padding: 8px 18px;
            border-radius: var(--radius-md);
            border: none;
            display: inline-block;
        }
        .btn-header-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
        }
        .page-section {
            padding: 72px 0;
        }
        .section-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 48px;
        }
        .section-badge {
            display: inline-block;
            background: rgba(10, 37, 64, 0.06);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 28px;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.6;
        }
        .category-hero-bar {
            background: #0A2540;
            background-image: linear-gradient(rgba(10, 37, 64, 0.92), rgba(10, 37, 64, 0.95)), url('/assets/images/8dbd7eff0dfca1a2.webp');
            background-size: cover;
            background-position: center;
            color: #FFFFFF;
            padding: 48px 0;
            border-bottom: 1px solid #1E3A5F;
        }
        .breadcrumbs {
            font-size: 13px;
            color: #94A3B8;
            margin-bottom: 16px;
        }
        .breadcrumbs a {
            color: #CBD5E1;
        }
        .breadcrumbs a:hover {
            color: var(--accent);
        }
        .category-title {
            font-size: 32px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .category-lead {
            font-size: 15px;
            color: #CBD5E1;
            max-width: 820px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .card-custom {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: #CBD5E1;
        }
        .card-icon-badge {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(0, 212, 178, 0.12);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .card-custom h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .card-custom p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 0;
        }
        .step-timeline {
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .step-item {
            display: grid;
            grid-template-columns: 80px 1fr;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .step-num-box {
            font-size: 24px;
            font-weight: 800;
            color: var(--accent);
            display: flex;
            align-items: flex-start;
        }
        .step-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .step-content p {
            color: var(--text-body);
            font-size: 14px;
            margin-bottom: 12px;
        }
        .step-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .step-tag {
            background: #F1F5F9;
            color: #475569;
            font-size: 12px;
            padding: 3px 8px;
            border-radius: var(--radius-sm);
        }
        .notice-banner {
            background: linear-gradient(90deg, rgba(10, 37, 64, 0.03), rgba(0, 212, 178, 0.05));
            border-left: 4px solid var(--accent);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-top: 20px;
        }
        .notice-banner h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .notice-banner p {
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 0;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            margin-bottom: 16px;
        }
        .faq-question {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .faq-answer {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .site-footer {
            background: #061727;
            color: #94A3B8;
            padding: 64px 0 32px;
            border-top: 1px solid #1E293B;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-col h4 {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-col p {
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #94A3B8;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .page-section {
                padding: 40px 0;
            }
            .step-item {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0A2540;
            --primary-light: #16385C;
            --accent: #00D4B2;
            --accent-hover: #00B89A;
            --warning: #FF5A5F;
            --bg-main: #F8FAFC;
            --surface: #FFFFFF;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.05), 0 4px 12px rgba(10, 37, 64, 0.03);
            --shadow-hover: 0 8px 24px rgba(10, 37, 64, 0.08), 0 2px 6px rgba(10, 37, 64, 0.04);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.65;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            height: 68px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo .dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .main-nav {
            display: flex;
            gap: 28px;
            align-items: center;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
        }
        .btn-header-cta {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            padding: 8px 18px;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .btn-header-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }
        .page-section {
            padding: 72px 0;
        }
        .section-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .category-hero {
            background: linear-gradient(135deg, #0A2540 0%, #16385C 100%);
            color: #FFFFFF;
            padding: 48px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .breadcrumbs {
            font-size: 14px;
            color: #94A3B8;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumbs a {
            color: #CBD5E1;
        }
        .breadcrumbs a:hover {
            color: var(--accent);
        }
        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .category-hero p {
            color: #CBD5E1;
            font-size: 15px;
            max-width: 820px;
            line-height: 1.65;
            margin: 0;
        }
        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 48px;
        }
        .section-badge {
            display: inline-block;
            background: rgba(10, 37, 64, 0.06);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 28px;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.6;
        }
        .flow-timeline-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .flow-timeline-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all 0.25s ease;
        }
        .flow-timeline-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 212, 178, 0.5);
        }
        .step-index-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: var(--accent);
            font-weight: 700;
            font-size: 14px;
            border-radius: 50%;
            margin-bottom: 16px;
        }
        .flow-timeline-card h3 {
            font-size: 18px;
            color: var(--text-dark);
            margin-bottom: 10px;
            font-weight: 600;
        }
        .flow-timeline-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
            margin: 0;
        }
        .audit-split-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .audit-img-wrapper {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .audit-info h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
        }
        .audit-info p {
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .audit-checkpoints {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .audit-checkpoints li {
            position: relative;
            padding-left: 24px;
            font-size: 14px;
            color: var(--text-body);
        }
        .audit-checkpoints li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: bold;
        }
        .security-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .security-mini-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .security-mini-card h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .security-mini-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
            margin: 0;
        }
        .terms-panel {
            background: var(--surface);
            border: 1px solid var(--border);
            border-left: 4px solid var(--accent);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .terms-panel h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .terms-panel p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .terms-subgrid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 20px;
        }
        .terms-subitem {
            background: var(--bg-main);
            padding: 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
        }
        .terms-subitem h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .terms-subitem p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }
        .cms-archive-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .cms-post-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }
        .cms-post-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 212, 178, 0.4);
        }
        .cms-post-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            justify-content: space-between;
        }
        .cms-post-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .cms-post-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cms-post-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .cms-post-link:hover {
            color: var(--accent);
        }
        .cms-empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px;
            background: var(--surface);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            color: var(--text-muted);
        }
        .archive-action-row {
            text-align: center;
            margin-top: 36px;
        }
        .btn-view-more {
            display: inline-block;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 28px;
            border-radius: var(--radius-md);
            transition: background 0.2s ease;
        }
        .btn-view-more:hover {
            background: var(--primary-light);
            color: #FFFFFF;
        }
        .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            padding: 18px 24px;
            background: var(--surface);
            box-shadow: none !important;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: rgba(10, 37, 64, 0.02);
        }
        .accordion-body {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            padding: 20px 24px;
            border-top: 1px solid var(--border);
        }
        .site-footer {
            background: #061727;
            color: #94A3B8;
            padding: 64px 0 32px;
            border-top: 1px solid #1E293B;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-col h4 {
            color: #FFFFFF;
            font-size: 16px;
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
        }
        @media (max-width: 992px) {
            .flow-timeline-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .audit-split-box {
                grid-template-columns: 1fr;
            }
            .security-grid-3, .cms-archive-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .flow-timeline-grid, .security-grid-3, .cms-archive-grid, .terms-subgrid {
                grid-template-columns: 1fr;
            }
            .main-nav {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 24px;
            }
            .page-section {
                padding: 48px 0;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0A2540;
            --primary-light: #16385C;
            --accent: #00D4B2;
            --accent-hover: #00B89A;
            --warning: #FF5A5F;
            --bg-main: #F8FAFC;
            --surface: #FFFFFF;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.05), 0 4px 12px rgba(10, 37, 64, 0.03);
            --shadow-hover: 0 8px 24px rgba(10, 37, 64, 0.08), 0 2px 6px rgba(10, 37, 64, 0.04);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.65;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            height: 68px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo .dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .main-nav {
            display: flex;
            gap: 28px;
            align-items: center;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
        }
        .btn-header-cta {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            padding: 8px 18px;
            border-radius: var(--radius-md);
            border: none;
            display: inline-block;
        }
        .btn-header-cta:hover {
            background: var(--accent-hover);
        }
        .category-hero {
            background: linear-gradient(135deg, #0A2540 0%, #16385C 100%);
            color: #FFFFFF;
            padding: 56px 0 60px;
            border-bottom: 3px solid var(--accent);
        }
        .breadcrumb-nav {
            font-size: 13px;
            color: #94A3B8;
            margin-bottom: 16px;
        }
        .breadcrumb-nav a {
            color: #CBD5E1;
        }
        .breadcrumb-nav a:hover {
            color: var(--accent);
        }
        .category-hero h1 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            color: #FFFFFF;
        }
        .category-hero p {
            font-size: 16px;
            color: #CBD5E1;
            max-width: 820px;
            line-height: 1.7;
            margin: 0;
        }
        .page-section {
            padding: 72px 0;
        }
        .section-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 44px;
        }
        .section-badge {
            display: inline-block;
            background: rgba(10, 37, 64, 0.06);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 28px;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 12px;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 15px;
        }
        .table-custom-wrapper {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .table-custom {
            width: 100%;
            margin-bottom: 0;
            border-collapse: collapse;
        }
        .table-custom th {
            background: #0A2540;
            color: #FFFFFF;
            padding: 16px 20px;
            font-size: 14px;
            font-weight: 600;
            text-align: left;
            border: none;
        }
        .table-custom td {
            padding: 16px 20px;
            font-size: 14px;
            color: var(--text-body);
            border-bottom: 1px solid var(--border);
            vertical-align: middle;
        }
        .table-custom tr:last-child td {
            border-bottom: none;
        }
        .table-custom tr:hover td {
            background-color: #F8FAFC;
        }
        .badge-leverage {
            background: rgba(0, 212, 178, 0.15);
            color: #008770;
            font-weight: 700;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            display: inline-block;
        }
        .badge-warning-line {
            background: rgba(255, 90, 95, 0.1);
            color: var(--warning);
            font-weight: 600;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            display: inline-block;
        }
        .calc-panel-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }
        .calc-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .calc-header h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .formula-box {
            background: #0A2540;
            color: #E2E8F0;
            padding: 16px 20px;
            border-radius: var(--radius-md);
            font-family: monospace;
            font-size: 14px;
            margin: 16px 0;
            border-left: 4px solid var(--accent);
        }
        .split-feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .feature-box {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .feature-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .feature-box h4 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }
        .feature-list li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .feature-list li:last-child {
            border-bottom: none;
        }
        .article-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .article-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card-meta {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            justify-content: space-between;
        }
        .article-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .article-card-title a:hover {
            color: var(--primary);
        }
        .article-card-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }
        .article-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .article-card-link:hover {
            color: var(--accent-hover);
        }
        .empty-cms-block {
            padding: 48px;
            text-align: center;
            background: var(--surface);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            color: var(--text-muted);
            font-size: 15px;
        }
        .img-rule-showcase {
            width: 100%;
            height: 240px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 20px;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .faq-card-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
            box-shadow: var(--shadow-sm);
        }
        .faq-card-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .faq-card-item p {
            font-size: 14px;
            color: var(--text-body);
            margin: 0;
            line-height: 1.6;
        }
        .site-footer {
            background: #061727;
            color: #94A3B8;
            padding: 64px 0 24px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 48px;
        }
        .footer-col h4 {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 13px;
        }
        @media (max-width: 992px) {
            .calc-panel-grid, .split-feature-grid, .article-card-grid, .faq-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .page-section {
                padding: 44px 0;
            }
            .main-nav {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }