/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0a1628;
            --primary-light: #1a2d4a;
            --primary-lighter: #2a4060;
            --accent: #c9a84c;
            --accent-light: #e0c878;
            --accent-dark: #b8922e;
            --bg-body: #f5f6f8;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-section-alt: #eef0f4;
            --text-primary: #0a1628;
            --text-body: #2d3748;
            --text-muted: #6b7a8f;
            --text-light: #f0f2f5;
            --border-light: #e2e6ec;
            --border-accent: #c9a84c;
            --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 6px 24px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 16px 48px rgba(10, 22, 40, 0.12);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --sidebar-width: 260px;
            --header-height: 64px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-primary);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== App Shell Layout ===== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        /* === Sidebar (左侧导航) === */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary);
            color: var(--text-light);
            z-index: 1050;
            display: flex;
            flex-direction: column;
            padding: 0;
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.2);
        }
        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            flex-shrink: 0;
        }
        .sidebar-brand .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .sidebar-brand .brand-sub {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 1px;
            text-transform: uppercase;
            display: block;
            margin-top: 1px;
        }
        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 20px 16px 24px;
        }
        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: rgba(255, 255, 255, 0.3);
            padding: 12px 12px 8px;
            font-weight: 600;
        }
        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            margin-bottom: 2px;
            position: relative;
        }
        .sidebar-nav .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            color: rgba(255, 255, 255, 0.4);
            transition: var(--transition);
        }
        .sidebar-nav .nav-link:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .sidebar-nav .nav-link:hover i {
            color: var(--accent-light);
        }
        .sidebar-nav .nav-link.active {
            background: rgba(201, 168, 76, 0.15);
            color: var(--accent-light);
            font-weight: 600;
        }
        .sidebar-nav .nav-link.active i {
            color: var(--accent);
        }
        .sidebar-nav .nav-link.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent);
            border-radius: 0 3px 3px 0;
        }
        .sidebar-footer {
            padding: 16px 24px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.3);
            text-align: center;
        }

        /* === Main Content === */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            background: var(--bg-body);
        }

        /* === Top Bar (移动端/平板) === */
        .top-bar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 1040;
            background: var(--primary);
            padding: 0 20px;
            height: var(--header-height);
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
        }
        .top-bar .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }
        .top-bar .brand-sub {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.5);
            display: block;
            margin-top: -2px;
        }
        .top-bar .menu-toggler {
            background: none;
            border: none;
            color: #fff;
            font-size: 26px;
            padding: 4px 8px;
            cursor: pointer;
            border-radius: 4px;
            transition: var(--transition);
        }
        .top-bar .menu-toggler:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* === Sidebar Overlay (移动端) === */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1045;
            opacity: 0;
            transition: opacity 0.3s ease;
            pointer-events: none;
        }
        .sidebar-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-padding-sm {
            padding: 56px 0;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.6;
        }
        .section-divider {
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
            margin: 16px 0 24px;
        }
        .bg-alt {
            background: var(--bg-section-alt);
        }
        .bg-dark-section {
            background: var(--primary);
            color: var(--text-light);
        }
        .bg-dark-section .section-title {
            color: #fff;
        }
        .bg-dark-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            position: relative;
            padding: 100px 0 90px;
            background: var(--primary);
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 80% 20%, rgba(201, 168, 76, 0.10) 0%, transparent 60%),
                radial-gradient(ellipse at 20% 80%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
            pointer-events: none;
        }
        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 168, 76, 0.15);
            border: 1px solid rgba(201, 168, 76, 0.25);
            color: var(--accent-light);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.3px;
            margin-bottom: 24px;
        }
        .hero-section .hero-badge i {
            font-size: 12px;
        }
        .hero-section h1 {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -0.03em;
            max-width: 720px;
            margin-bottom: 20px;
        }
        .hero-section h1 .highlight {
            color: var(--accent);
        }
        .hero-section .hero-desc {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .hero-section .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-section .btn-accent {
            background: var(--accent);
            color: var(--primary);
            border: none;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-section .btn-accent:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(201, 168, 76, 0.3);
        }
        .hero-section .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 16px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-section .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 48px;
            padding-top: 36px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-stats .stat-item .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stats .stat-item .stat-number .plus {
            color: var(--accent);
        }
        .hero-stats .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 2px;
        }

        /* ===== 卡片通用 ===== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-custom .card-body {
            padding: 28px 24px;
        }
        .card-custom .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            margin-bottom: 16px;
            background: var(--primary);
        }
        .card-custom .card-icon.icon-accent {
            background: var(--accent);
            color: var(--primary);
        }
        .card-custom .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .card-custom .card-text {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
        }
        .card-custom .card-link {
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
            transition: var(--transition);
        }
        .card-custom .card-link:hover {
            gap: 10px;
            color: var(--primary);
        }

        /* ===== 分类入口卡片 ===== */
        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: var(--accent);
        }
        .category-card .cat-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            background: var(--bg-section-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .category-card:hover .cat-icon {
            background: var(--accent);
            color: var(--primary);
        }
        .category-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .category-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .category-card .cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-dark);
            transition: var(--transition);
        }
        .category-card:hover .cat-tag {
            gap: 10px;
            color: var(--primary);
        }

        /* ===== 最新资讯列表 ===== */
        .news-list .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .news-list .news-item:last-child {
            border-bottom: none;
        }
        .news-list .news-item:hover {
            padding-left: 8px;
        }
        .news-list .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            min-width: 120px;
        }
        .news-list .news-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(201, 168, 76, 0.12);
            padding: 2px 12px;
            border-radius: 20px;
            white-space: nowrap;
        }
        .news-list .news-date {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .news-list .news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: var(--transition);
            line-height: 1.5;
            flex: 1;
        }
        .news-list .news-title:hover {
            color: var(--accent-dark);
        }
        .news-list .news-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 15px;
        }
        .news-empty i {
            font-size: 40px;
            color: var(--border-light);
            margin-bottom: 16px;
            display: block;
        }

        /* ===== 数据统计块 ===== */
        .stats-grid .stat-block {
            text-align: center;
            padding: 32px 16px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stats-grid .stat-block:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .stats-grid .stat-block .stat-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stats-grid .stat-block .stat-num .accent {
            color: var(--accent-dark);
        }
        .stats-grid .stat-block .stat-label {
            font-size: 15px;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        /* ===== 流程步骤 ===== */
        .step-card {
            display: flex;
            gap: 20px;
            padding: 24px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            align-items: flex-start;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-card .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
        }
        .step-card .step-number.accent {
            background: var(--accent);
            color: var(--primary);
        }
        .step-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            gap: 12px;
        }
        .faq-item .faq-question i {
            color: var(--accent);
            font-size: 14px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item .faq-answer {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(201, 168, 76, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            background: var(--accent);
            color: var(--primary);
            border: none;
            padding: 16px 44px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 17px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(201, 168, 76, 0.25);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.6);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .site-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .site-footer .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
            max-width: 320px;
            line-height: 1.7;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            margin-top: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.3);
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-section h1 {
                font-size: 38px;
            }
            .section-title {
                font-size: 28px;
            }
            .hero-stats {
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .top-bar {
                display: flex;
            }
            .sidebar-overlay.show {
                display: block;
            }
            .hero-section {
                padding: 60px 0 56px;
                min-height: auto;
            }
            .hero-section h1 {
                font-size: 30px;
            }
            .hero-section .hero-desc {
                font-size: 16px;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 32px;
                padding-top: 24px;
            }
            .hero-stats .stat-item .stat-number {
                font-size: 26px;
            }
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-subtitle {
                font-size: 15px;
            }
            .news-list .news-item {
                flex-direction: column;
                gap: 8px;
                padding: 16px 0;
            }
            .news-list .news-meta {
                min-width: auto;
                flex-wrap: wrap;
            }
            .stats-grid .stat-block .stat-num {
                font-size: 32px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section {
                padding: 52px 0;
            }
            .step-card {
                padding: 18px 16px;
            }
            .category-card {
                padding: 24px 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-section h1 {
                font-size: 24px;
            }
            .hero-section .hero-actions {
                flex-direction: column;
            }
            .hero-section .btn-accent,
            .hero-section .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .section-title {
                font-size: 22px;
            }
            .container-custom {
                padding: 0 12px;
            }
            .faq-item {
                padding: 16px 16px;
            }
            .news-list .news-title {
                font-size: 15px;
            }
            .site-footer .footer-links {
                flex-direction: column;
                gap: 8px;
            }
        }

        /* ===== 辅助 ===== */
        .text-accent {
            color: var(--accent-dark);
        }
        .bg-accent-soft {
            background: rgba(201, 168, 76, 0.08);
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .gap-16 {
            gap: 16px;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-8 {
            margin-bottom: 8px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }

        /* ===== 滚动条 ===== */
        .sidebar-nav::-webkit-scrollbar {
            width: 3px;
        }
        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 10px;
        }
        .sidebar-nav::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.25);
        }

        /* ===== 按钮focus ===== */
        .btn:focus,
        .btn-cta:focus,
        .menu-toggler:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Bootstrap 覆盖 ===== */
        .btn {
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(10, 22, 40, 0.2);
        }
        .card {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .badge {
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 12px;
        }
        .badge-accent {
            background: rgba(201, 168, 76, 0.15);
            color: var(--accent-dark);
        }
        .list-group-item {
            border-color: var(--border-light);
            padding: 14px 20px;
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eef2ff;
            --secondary: #7c3aed;
            --secondary-light: #8b5cf6;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --bg: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark2: #1e293b;
            --text: #0f172a;
            --text-light: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 240px;
            --sidebar-collapsed: 72px;
            --header-height: 0px;
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; padding: 0; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 600; color: var(--text); }
        h1 { font-size: 2.25rem; font-weight: 700; letter-spacing: -0.02em; }
        h2 { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.01em; }
        h3 { font-size: 1.25rem; font-weight: 600; }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding { padding: 72px 0; }
        .section-title { margin-bottom: 16px; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-light); max-width: 680px; margin-bottom: 40px; line-height: 1.7; }
        .text-gradient { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

        /* ===== Sidebar Navigation ===== */
        .app-wrapper {
            display: flex;
            min-height: 100vh;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-dark);
            color: #fff;
            z-index: 1050;
            display: flex;
            flex-direction: column;
            padding: 20px 0 16px;
            transition: width var(--transition), transform var(--transition);
            overflow-y: auto;
            overflow-x: hidden;
        }
        .sidebar-brand {
            padding: 8px 20px 24px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            margin-bottom: 12px;
        }
        .sidebar-brand i { color: var(--accent); font-size: 1.3rem; }
        .sidebar .nav-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: rgba(255,255,255,0.35);
            padding: 16px 20px 8px;
            font-weight: 600;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 0 10px;
            flex: 1;
        }
        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .sidebar-nav .nav-link i { width: 20px; text-align: center; font-size: 1rem; color: rgba(255,255,255,0.4); transition: var(--transition); }
        .sidebar-nav .nav-link:hover { background: rgba(255,255,255,0.08); color: #fff; }
        .sidebar-nav .nav-link:hover i { color: var(--accent); }
        .sidebar-nav .nav-link.active {
            background: rgba(37,99,235,0.2);
            color: #fff;
            box-shadow: inset 3px 0 0 var(--primary-light);
        }
        .sidebar-nav .nav-link.active i { color: var(--accent); }

        /* ===== Main Content ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .page-body { flex: 1; }

        /* ===== Hero ===== */
        .hero-category {
            padding: 60px 0 56px;
            background: linear-gradient(135deg, var(--primary-bg) 0%, #f0e7ff 100%);
            border-bottom: 1px solid var(--border);
        }
        .hero-category h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 16px; }
        .hero-category .lead { font-size: 1.1rem; color: var(--text-light); max-width: 720px; line-height: 1.8; }
        .hero-category .badge-group { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
        .hero-category .badge-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255,255,255,0.7);
            backdrop-filter: blur(4px);
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-light);
            border: 1px solid var(--border);
        }

        /* ===== Category Cards ===== */
        .card-entry {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: var(--transition);
            height: 100%;
        }
        .card-entry:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--primary-light); }
        .card-entry .entry-icon {
            width: 48px; height: 48px;
            border-radius: var(--radius-sm);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 16px;
            background: var(--primary);
        }
        .card-entry h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .card-entry p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 12px; line-height: 1.6; }
        .card-entry .tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
        .card-entry .tag-list .badge {
            font-weight: 500; font-size: 0.7rem; padding: 4px 12px; border-radius: 100px;
            background: var(--primary-bg); color: var(--primary);
        }

        /* ===== Steps / Timeline ===== */
        .step-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .step-item:last-child { border-bottom: none; }
        .step-number {
            flex-shrink: 0;
            width: 44px; height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex; align-items: center; justify-content: center;
            font-weight: 700; font-size: 1.1rem;
        }
        .step-content h4 { font-size: 1.05rem; margin-bottom: 4px; }
        .step-content p { color: var(--text-light); font-size: 0.92rem; margin: 0; }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            background: var(--bg-card);
            overflow: hidden;
        }
        .faq-question {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text);
            transition: var(--transition);
        }
        .faq-question:hover { background: var(--primary-bg); }
        .faq-question i { color: var(--text-muted); transition: var(--transition); font-size: 0.85rem; }
        .faq-question[aria-expanded="true"] i { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            padding: 0 20px 18px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark2) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
        }
        .cta-block h2 { color: #fff; font-size: 1.8rem; margin-bottom: 12px; }
        .cta-block p { color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto 28px; font-size: 1.05rem; }
        .cta-block .btn-cta {
            padding: 14px 40px;
            border-radius: 100px;
            background: var(--accent);
            color: #1e293b;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: var(--transition);
            display: inline-block;
        }
        .cta-block .btn-cta:hover { background: var(--accent-light); transform: scale(1.02); color: #1e293b; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 32px;
            font-size: 0.9rem;
            margin-top: auto;
        }
        .site-footer .footer-brand { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
        .site-footer .footer-desc { font-size: 0.85rem; max-width: 360px; line-height: 1.7; opacity: 0.7; }
        .site-footer .footer-links a { color: rgba(255,255,255,0.6); font-size: 0.85rem; display: inline-block; }
        .site-footer .footer-links a:hover { color: #fff; }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            margin-top: 32px;
            font-size: 0.8rem;
            opacity: 0.6;
            text-align: center;
        }
        .site-footer .footer-bottom a { color: rgba(255,255,255,0.7); }
        .site-footer .footer-bottom a:hover { color: #fff; }

        /* ===== Mobile Sidebar Toggle ===== */
        .sidebar-toggle {
            display: none;
            position: fixed;
            top: 14px;
            left: 16px;
            z-index: 1060;
            background: var(--bg-dark);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            width: 42px;
            height: 42px;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            align-items: center;
            justify-content: center;
        }
        .sidebar-toggle:hover { background: var(--bg-dark2); }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            z-index: 1040;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-category h1 { font-size: 2rem; }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }
            .sidebar.open { transform: translateX(0); }
            .sidebar-overlay.show { display: block; }
            .sidebar-toggle { display: flex; }
            .main-content { margin-left: 0; }
            .hero-category { padding: 48px 0 40px; }
            .hero-category h1 { font-size: 1.7rem; }
            .hero-category .lead { font-size: 1rem; }
            .section-padding { padding: 48px 0; }
            .cta-block { padding: 40px 24px; }
            .cta-block h2 { font-size: 1.4rem; }
            .step-item { gap: 14px; }
            .step-number { width: 36px; height: 36px; font-size: 0.95rem; }
            .card-entry { padding: 20px 16px; }
            .site-footer { padding: 32px 0 24px; }
        }

        @media (max-width: 520px) {
            .container-custom { padding: 0 16px; }
            .hero-category h1 { font-size: 1.4rem; }
            .hero-category .lead { font-size: 0.92rem; }
            .hero-category .badge-tag { font-size: 0.7rem; padding: 4px 12px; }
            .card-entry .entry-icon { width: 40px; height: 40px; font-size: 1.1rem; }
            .faq-question { font-size: 0.9rem; padding: 14px 16px; }
            .faq-answer { padding: 0 16px 14px; font-size: 0.88rem; }
            .cta-block { padding: 32px 16px; }
            .cta-block h2 { font-size: 1.2rem; }
            .cta-block .btn-cta { padding: 12px 28px; font-size: 0.9rem; width: 100%; }
        }

        /* ===== Accessibility ===== */
        .sidebar-nav .nav-link:focus-visible, .btn-cta:focus-visible, .faq-question:focus-visible, .sidebar-toggle:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Smooth open/close ===== */
        .faq-answer { display: none; }
        .faq-answer.show { display: block; }

/* roulang page: article */
:root {
            --primary: #4F46E5;
            --primary-dark: #4338CA;
            --primary-light: #818CF8;
            --secondary: #10B981;
            --secondary-dark: #059669;
            --accent: #F59E0B;
            --nav-bg: #0F172A;
            --nav-hover: #1E293B;
            --nav-active: #4F46E5;
            --body-bg: #F1F5F9;
            --card-bg: #FFFFFF;
            --text-primary: #1E293B;
            --text-secondary: #64748B;
            --text-light: #94A3B8;
            --border-color: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 36px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 240px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { font-size: 16px; scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--body-bg);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }
        ul, ol { padding-left: 1.25rem; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); }

        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            width: var(--sidebar-width);
            background: var(--nav-bg);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1040;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            transition: transform var(--transition);
            box-shadow: 2px 0 20px rgba(0,0,0,0.2);
        }
        .sidebar-logo {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .sidebar-logo a {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-logo a:hover { color: var(--primary-light); }
        .sidebar-logo i { color: var(--primary-light); font-size: 20px; }

        .sidebar-nav {
            padding: 16px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .nav-label {
            font-size: 11px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--text-light);
            padding: 8px 12px 6px;
            opacity: 0.6;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255,255,255,0.7);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-link i { width: 18px; font-size: 15px; color: rgba(255,255,255,0.5); transition: var(--transition); }
        .nav-link:hover {
            background: var(--nav-hover);
            color: #fff;
        }
        .nav-link:hover i { color: var(--primary-light); }
        .nav-link.active {
            background: var(--nav-active);
            color: #fff;
            box-shadow: 0 4px 12px rgba(79,70,229,0.35);
        }
        .nav-link.active i { color: #fff; }

        .sidebar-toggle {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1050;
            background: var(--nav-bg);
            border: none;
            color: #fff;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            font-size: 18px;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }
        .sidebar-toggle:hover { background: var(--nav-hover); }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            z-index: 1035;
            backdrop-filter: blur(4px);
        }
        .sidebar-overlay.show { display: block; }

        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        .article-header {
            background: var(--card-bg);
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .article-header .breadcrumb {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .article-header .breadcrumb a { color: var(--text-secondary); }
        .article-header .breadcrumb a:hover { color: var(--primary); }
        .article-header .breadcrumb .sep { color: var(--text-light); }
        .article-header .breadcrumb .current { color: var(--text-primary); font-weight: 500; }
        .article-header h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .article-meta .badge-cat {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .article-meta .date {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .date i { font-size: 13px; color: var(--text-light); }

        .article-body-wrap {
            flex: 1;
            padding: 40px 0 60px;
        }
        .article-content {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 48px 52px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .article-content .content-inner {
            max-width: 780px;
            margin: 0 auto;
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-content .content-inner p {
            margin-bottom: 1.4rem;
        }
        .article-content .content-inner h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-top: 2.2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        .article-content .content-inner h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }
        .article-content .content-inner ul, 
        .article-content .content-inner ol {
            margin-bottom: 1.4rem;
            padding-left: 1.5rem;
        }
        .article-content .content-inner li { margin-bottom: 0.4rem; }
        .article-content .content-inner blockquote {
            border-left: 4px solid var(--primary);
            background: #F8FAFC;
            padding: 16px 24px;
            margin: 1.6rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: normal;
        }
        .article-content .content-inner blockquote p:last-child { margin-bottom: 0; }
        .article-content .content-inner img {
            border-radius: var(--radius-md);
            margin: 1.6rem 0;
            box-shadow: var(--shadow-sm);
            width: 100%;
        }
        .article-content .content-inner a { font-weight: 500; }
        .article-content .content-inner code {
            background: #F1F5F9;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: #E11D48;
        }
        .article-content .content-inner pre {
            background: #1E293B;
            color: #E2E8F0;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 1.6rem 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .article-content .content-inner pre code { background: none; color: inherit; padding: 0; }

        .article-footer-nav {
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .article-footer-nav .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            background: #F8FAFC;
            transition: var(--transition);
        }
        .article-footer-nav .back-link:hover {
            background: var(--primary);
            color: #fff;
        }

        .not-found-wrap {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-wrap i {
            font-size: 56px;
            color: var(--text-light);
            margin-bottom: 20px;
            display: block;
        }
        .not-found-wrap h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .not-found-wrap p {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-bottom: 24px;
        }
        .not-found-wrap .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-wrap .btn-home:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .site-footer {
            background: var(--nav-bg);
            color: rgba(255,255,255,0.7);
            padding: 40px 0 24px;
            margin-top: auto;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .site-footer .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 360px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .site-footer .footer-links a {
            color: rgba(255,255,255,0.55);
            font-size: 14px;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-links a:hover { color: #fff; }
        .site-footer .footer-bottom {
            margin-top: 28px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 13px;
            color: rgba(255,255,255,0.4);
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.5);
            text-decoration: none;
        }
        .site-footer .footer-bottom a:hover { color: #fff; }

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

        @media (max-width: 1024px) {
            .article-content { padding: 32px 28px; }
            .article-header h1 { font-size: 1.8rem; }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-toggle { display: flex; align-items: center; justify-content: center; }
            .main-content { margin-left: 0; }
            .article-header { padding: 28px 0 24px; }
            .article-header h1 { font-size: 1.5rem; }
            .article-content { padding: 24px 18px; border-radius: var(--radius-md); }
            .article-content .content-inner { font-size: 1rem; }
            .article-content .content-inner h2 { font-size: 1.35rem; }
            .article-meta { gap: 12px; font-size: 13px; }
            .site-footer .footer-brand { font-size: 18px; }
            .container-custom { padding: 0 16px; }
            .article-footer-nav { flex-direction: column; align-items: flex-start; }
        }

        @media (max-width: 520px) {
            .article-header h1 { font-size: 1.3rem; }
            .article-content { padding: 18px 14px; }
            .article-content .content-inner { font-size: 0.95rem; }
            .article-meta .badge-cat { font-size: 11px; padding: 3px 12px; }
            .not-found-wrap { padding: 60px 16px; }
            .not-found-wrap i { font-size: 40px; }
        }

        @media (min-width: 769px) {
            .sidebar { transform: translateX(0) !important; }
            .sidebar-overlay { display: none !important; }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #2d2d4a;
            --primary-dark: #0f0f1a;
            --accent: #e94560;
            --accent-hover: #d63850;
            --accent-light: rgba(233, 69, 96, 0.12);
            --bg-body: #f5f5fa;
            --bg-card: #ffffff;
            --bg-dark: #16213e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8a8aaa;
            --text-light: #f0f0f5;
            --border-color: #e8e8f0;
            --border-light: #f0f0f6;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --sidebar-width: 240px;
            --sidebar-collapsed: 68px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            display: flex;
            min-height: 100vh;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }

        /* ===== 容器 ===== */
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== 左侧导航 (App Shell) ===== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary);
            z-index: 1050;
            display: flex;
            flex-direction: column;
            padding: 24px 0 16px;
            transition: transform var(--transition);
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.18);
            overflow-y: auto;
        }
        .app-sidebar .sidebar-logo {
            padding: 0 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 12px;
        }
        .app-sidebar .sidebar-logo a {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .app-sidebar .sidebar-logo a i {
            color: var(--accent);
            font-size: 22px;
        }
        .app-sidebar .sidebar-logo a:hover {
            color: #fff;
        }
        .app-sidebar .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: rgba(255, 255, 255, 0.35);
            padding: 8px 20px 6px;
            font-weight: 600;
        }
        .app-sidebar .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 0 10px;
            flex: 1;
        }
        .app-sidebar .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
            border: none;
            background: transparent;
        }
        .app-sidebar .sidebar-nav .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.45);
            transition: var(--transition);
        }
        .app-sidebar .sidebar-nav .nav-link:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .app-sidebar .sidebar-nav .nav-link:hover i {
            color: var(--accent);
        }
        .app-sidebar .sidebar-nav .nav-link.active {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(233, 69, 96, 0.35);
        }
        .app-sidebar .sidebar-nav .nav-link.active i {
            color: #fff;
        }

        /* ===== 主内容区 ===== */
        .app-main {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .app-main .main-content {
            flex: 1;
            padding: 40px 0 60px;
        }

        /* ===== 移动端菜单切换 ===== */
        .sidebar-toggle {
            display: none;
            position: fixed;
            top: 14px;
            left: 14px;
            z-index: 1060;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            border: none;
            font-size: 18px;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }
        .sidebar-toggle:hover {
            background: var(--primary-light);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 1045;
            backdrop-filter: blur(4px);
        }

        /* ===== 页面标题区 ===== */
        .page-header {
            background: var(--primary);
            padding: 48px 0 40px;
            margin-bottom: 40px;
            position: relative;
            overflow: hidden;
        }
        .page-header::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(233, 69, 96, 0.12);
            pointer-events: none;
        }
        .page-header::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .page-header .container-custom {
            position: relative;
            z-index: 1;
        }
        .page-header h1 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 10px;
            letter-spacing: -0.3px;
        }
        .page-header .breadcrumb-custom {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            margin-bottom: 8px;
        }
        .page-header .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.65);
        }
        .page-header .breadcrumb-custom a:hover {
            color: #fff;
        }
        .page-header .lead-text {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            max-width: 700px;
            line-height: 1.7;
        }

        /* ===== 通用板块 ===== */
        .section-block {
            margin-bottom: 48px;
        }
        .section-block:last-child {
            margin-bottom: 0;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.2px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 28px;
            max-width: 600px;
        }
        .text-accent {
            color: var(--accent);
        }

        /* ===== 卡片 ===== */
        .card-modern {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-modern:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card-modern .card-body {
            padding: 24px;
        }
        .card-modern .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
            background: var(--accent-light);
            color: var(--accent);
        }
        .card-modern .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .card-modern .card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 步骤流程 ===== */
        .step-list {
            counter-reset: step;
            list-style: none;
            padding: 0;
        }
        .step-list li {
            counter-increment: step;
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
        }
        .step-list li:last-child {
            border-bottom: none;
        }
        .step-list .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(233, 69, 96, 0.25);
        }
        .step-list .step-content {
            flex: 1;
            min-width: 0;
        }
        .step-list .step-content h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-primary);
        }
        .step-list .step-content p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }
        .step-list .step-content .step-tip {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .step-list .step-content .step-tip i {
            color: var(--accent);
        }

        /* ===== 准备清单 ===== */
        .checklist {
            list-style: none;
            padding: 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        @media (max-width: 576px) {
            .checklist {
                grid-template-columns: 1fr;
            }
        }
        .checklist li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .checklist li i {
            color: #22c55e;
            font-size: 15px;
            flex-shrink: 0;
        }
        .checklist li:hover {
            border-color: var(--accent);
            background: var(--accent-light);
        }

        /* ===== 注意事项 ===== */
        .notice-card {
            background: #fff8e6;
            border: 1px solid #fde68a;
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin-bottom: 20px;
        }
        .notice-card .notice-icon {
            color: #f59e0b;
            font-size: 20px;
            margin-bottom: 8px;
        }
        .notice-card h5 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: #92400e;
        }
        .notice-card p,
        .notice-card li {
            font-size: 14px;
            color: #78350f;
            line-height: 1.7;
        }
        .notice-card ul {
            padding-left: 1.2rem;
            margin-bottom: 0;
        }

        .warning-card {
            background: #fef2f2;
            border: 1px solid #fecaca;
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin-bottom: 20px;
        }
        .warning-card .warning-icon {
            color: #ef4444;
            font-size: 20px;
            margin-bottom: 8px;
        }
        .warning-card h5 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: #991b1b;
        }
        .warning-card p,
        .warning-card li {
            font-size: 14px;
            color: #7f1d1d;
            line-height: 1.7;
        }
        .warning-card ul {
            padding-left: 1.2rem;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            background: var(--bg-card);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-item .faq-question {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-item .faq-question::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item .faq-question[aria-expanded="true"]::after {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-item .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(233, 69, 96, 0.10);
            pointer-events: none;
        }
        .cta-block h3 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            max-width: 520px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
        }
        .cta-block .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 50px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border: none;
            transition: var(--transition);
            position: relative;
            z-index: 1;
            text-decoration: none;
        }
        .cta-block .btn-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(233, 69, 96, 0.35);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            padding: 44px 0 28px;
            margin-top: auto;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .site-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .site-footer .footer-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.7;
            max-width: 320px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .site-footer .footer-links a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .app-sidebar {
                transform: translateX(-100%);
                width: 260px;
            }
            .app-sidebar.open {
                transform: translateX(0);
            }
            .app-main {
                margin-left: 0;
            }
            .sidebar-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .sidebar-overlay.active {
                display: block;
            }
            .page-header {
                padding: 36px 0 30px;
                margin-top: 0;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .page-header .lead-text {
                font-size: 14px;
            }
            .section-title {
                font-size: 22px;
            }
            .cta-block {
                padding: 36px 24px;
            }
            .cta-block h3 {
                font-size: 22px;
            }
        }

        @media (max-width: 576px) {
            .app-main .main-content {
                padding: 24px 0 40px;
            }
            .page-header h1 {
                font-size: 22px;
            }
            .page-header {
                padding: 28px 0 24px;
                margin-bottom: 28px;
            }
            .section-title {
                font-size: 20px;
            }
            .section-subtitle {
                font-size: 14px;
                margin-bottom: 20px;
            }
            .step-list li {
                padding: 18px 0;
                gap: 14px;
            }
            .step-list .step-number {
                width: 36px;
                height: 36px;
                font-size: 14px;
            }
            .step-list .step-content h4 {
                font-size: 15px;
            }
            .card-modern .card-body {
                padding: 18px;
            }
            .notice-card,
            .warning-card {
                padding: 18px 20px;
            }
            .cta-block {
                padding: 28px 18px;
                border-radius: var(--radius-md);
            }
            .cta-block h3 {
                font-size: 20px;
            }
            .cta-block .btn-cta {
                padding: 12px 28px;
                font-size: 14px;
            }
            .site-footer {
                padding: 32px 0 20px;
            }
        }

        /* ===== 工具类 ===== */
        .bg-soft-accent {
            background: var(--accent-light);
        }
        .rounded-custom {
            border-radius: var(--radius-md);
        }
        .shadow-custom {
            box-shadow: var(--shadow-sm);
        }
        .mt-section {
            margin-top: 48px;
        }
        @media (max-width: 576px) {
            .mt-section {
                margin-top: 32px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --accent: #e94560;
            --accent-hover: #d63850;
            --gold: #f5a623;
            --bg-body: #f8f9fc;
            --bg-card: #ffffff;
            --bg-dark: #0f0f1a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #7a7a9a;
            --text-white: #f0f0f5;
            --border-color: #e8e8f0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --sidebar-width: 240px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            display: flex;
            min-height: 100vh;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ===== Sidebar ===== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary);
            color: var(--text-white);
            z-index: 1050;
            display: flex;
            flex-direction: column;
            padding: 24px 0;
            transition: var(--transition);
            overflow-y: auto;
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.15);
        }

        .sidebar-brand {
            padding: 8px 24px 20px;
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-brand i {
            color: var(--gold);
            font-size: 20px;
        }

        .nav-label {
            padding: 8px 24px 6px;
            font-size: 11px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: rgba(255, 255, 255, 0.35);
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 0 12px;
        }

        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            background: transparent;
            border: none;
            text-decoration: none;
        }
        .sidebar-nav .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.4);
            transition: var(--transition);
        }
        .sidebar-nav .nav-link:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .sidebar-nav .nav-link:hover i {
            color: var(--gold);
        }
        .sidebar-nav .nav-link.active {
            background: rgba(233, 69, 96, 0.2);
            color: #fff;
            font-weight: 600;
        }
        .sidebar-nav .nav-link.active i {
            color: var(--accent);
        }
        .sidebar-nav .nav-link:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
        }

        /* ===== Main Content ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 60px 0 48px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg-body);
            border-radius: 50% 50% 0 0 / 30px 30px 0 0;
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(233, 69, 96, 0.2);
            color: var(--accent);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
            border: 1px solid rgba(233, 69, 96, 0.2);
        }
        .page-hero h1 {
            font-size: 38px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
            line-height: 1.2;
        }
        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 620px;
            margin: 0 0 20px;
            line-height: 1.6;
        }
        .hero-stat {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 24px;
        }
        .hero-stat-item {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
        }
        .hero-stat-item strong {
            color: #fff;
            font-size: 20px;
            display: block;
            font-weight: 700;
        }

        /* ===== Section ===== */
        .section-block {
            padding: 64px 0;
        }
        .section-block.bg-white {
            background: #fff;
        }
        .section-block.bg-light {
            background: var(--bg-body);
        }
        .section-block.bg-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 0 36px;
            line-height: 1.6;
        }
        .section-block.bg-dark .section-title {
            color: #fff;
        }
        .section-block.bg-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(233, 69, 96, 0.1);
            color: var(--accent);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            border: 1px solid rgba(233, 69, 96, 0.15);
        }

        /* ===== Cards ===== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: var(--transition);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .card-custom .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
            color: #fff;
            background: var(--accent);
        }
        .card-custom .card-icon.blue {
            background: #3b82f6;
        }
        .card-custom .card-icon.green {
            background: #10b981;
        }
        .card-custom .card-icon.amber {
            background: #f59e0b;
        }
        .card-custom .card-icon.purple {
            background: #8b5cf6;
        }
        .card-custom .card-icon.teal {
            background: #14b8a6;
        }
        .card-custom .card-icon.rose {
            background: #f43f5e;
        }
        .card-custom h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--text-primary);
        }
        .card-custom p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        .card-custom .card-tag {
            display: inline-block;
            background: rgba(233, 69, 96, 0.08);
            color: var(--accent);
            padding: 2px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 500;
            margin-top: 12px;
        }

        /* ===== Steps ===== */
        .step-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            counter-reset: step;
        }
        .step-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: transparent;
        }
        .step-number {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }
        .step-content {
            flex: 1;
        }
        .step-content h4 {
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--text-primary);
        }
        .step-content p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: transparent;
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-q {
            font-weight: 600;
            font-size: 15px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
            margin: 0;
        }
        .faq-item .faq-q i {
            color: var(--accent);
            font-size: 14px;
        }
        .faq-item .faq-a {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 10px;
            padding-left: 24px;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, #0f3460 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }
        .cta-box h2 {
            font-size: 30px;
            font-weight: 700;
            margin: 0 0 12px;
        }
        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            transition: var(--transition);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(233, 69, 96, 0.35);
        }
        .btn-accent:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
            margin-top: auto;
        }
        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .site-footer .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
            line-height: 1.7;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
            display: inline-block;
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            transform: translateX(3px);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            margin-top: 32px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Mobile Toggle ===== */
        .sidebar-toggle {
            display: none;
            position: fixed;
            top: 12px;
            left: 12px;
            z-index: 1060;
            background: var(--primary);
            color: #fff;
            border: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            font-size: 18px;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }
        .sidebar-toggle:hover {
            background: var(--primary-light);
        }
        .sidebar-toggle:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1045;
        }

        /* ===== Badge / Tag ===== */
        .badge-tip {
            display: inline-block;
            background: rgba(16, 185, 129, 0.12);
            color: #059669;
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
        }
        .badge-warn {
            display: inline-block;
            background: rgba(245, 166, 35, 0.12);
            color: #b45309;
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
        }

        /* ===== Alert ===== */
        .alert-box {
            background: rgba(245, 166, 35, 0.08);
            border-left: 4px solid var(--gold);
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-secondary);
            margin: 20px 0;
        }
        .alert-box strong {
            color: var(--text-primary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .app-sidebar {
                transform: translateX(-100%);
            }
            .app-sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.open {
                display: block;
            }
            .main-content {
                margin-left: 0;
            }
            .sidebar-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .container-custom {
                padding: 0 20px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero {
                padding: 48px 0 36px;
            }
            .section-block {
                padding: 40px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .cta-box {
                padding: 32px 24px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
            .hero-stat {
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .section-title {
                font-size: 20px;
            }
            .section-subtitle {
                font-size: 14px;
                margin-bottom: 24px;
            }
            .card-custom {
                padding: 20px 16px;
            }
            .step-item {
                flex-direction: column;
                padding: 16px 18px;
            }
            .step-number {
                margin-bottom: 4px;
            }
            .faq-item {
                padding: 16px 18px;
            }
            .cta-box h2 {
                font-size: 20px;
            }
            .cta-box p {
                font-size: 14px;
            }
            .btn-accent,
            .btn-outline-light {
                padding: 10px 24px;
                font-size: 14px;
            }
            .site-footer .footer-brand {
                font-size: 18px;
            }
            .hero-stat-item strong {
                font-size: 17px;
            }
            .container-custom {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 20px;
            }
            .page-hero p {
                font-size: 14px;
            }
            .hero-stat {
                flex-direction: column;
                gap: 12px;
            }
            .section-block {
                padding: 32px 0;
            }
            .card-custom h3 {
                font-size: 16px;
            }
            .card-custom p {
                font-size: 13px;
            }
            .cta-box {
                padding: 24px 16px;
            }
            .step-content h4 {
                font-size: 15px;
            }
        }

        /* ===== Utility ===== */
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .gap-4 {
            gap: 24px;
        }
        .mt-2 {
            margin-top: 8px;
        }
        .mt-3 {
            margin-top: 16px;
        }
        .mt-4 {
            margin-top: 24px;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .text-center {
            text-align: center;
        }
        .fw-600 {
            font-weight: 600;
        }
        .d-flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .align-center {
            align-items: center;
        }