/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1E3A5F;
            --primary-light: #2A5298;
            --primary-dark: #0F1F3A;
            --accent: #F59E0B;
            --accent-light: #FCD34D;
            --accent-dark: #D97706;
            --bg-body: #F4F6FA;
            --bg-white: #FFFFFF;
            --bg-card: #FFFFFF;
            --bg-dark: #0F172A;
            --bg-sidebar: #0F172A;
            --text-primary: #0F172A;
            --text-body: #334155;
            --text-muted: #94A3B8;
            --text-light: #F8FAFC;
            --text-sidebar: #CBD5E1;
            --border: #E2E8F0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --shadow-xl: 0 24px 60px rgba(0,0,0,0.14);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --sidebar-width: 260px;
            --header-height: 0px;
            --max-width: 1200px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Noto Sans SC', sans-serif;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            display: flex;
            min-height: 100vh;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-primary); font-weight: 700; line-height: 1.3; }
        h1 { font-size: 2.6rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== Sidebar Navigation ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 28px 20px;
            overflow-y: auto;
            transition: transform var(--transition);
            box-shadow: 2px 0 20px rgba(0,0,0,0.2);
        }
        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            margin-bottom: 28px;
        }
        .sidebar-brand .brand-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            flex-shrink: 0;
        }
        .sidebar-brand .brand-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-light);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }
        .sidebar-nav { flex: 1; }
        .sidebar-nav .nav-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--text-muted);
            margin-bottom: 12px;
            padding-left: 12px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-sidebar);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
            margin-bottom: 4px;
        }
        .sidebar-nav a i { width: 20px; text-align: center; font-size: 1.05rem; }
        .sidebar-nav a:hover { background: rgba(255,255,255,0.08); color: #fff; }
        .sidebar-nav a.active {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 12px rgba(245,158,11,0.35);
        }
        .sidebar-nav a.active:hover { background: var(--accent-dark); }
        .sidebar-footer {
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.08);
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
        }

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

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--bg-sidebar);
            padding: 14px 20px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0,0,0,0.15);
        }
        .mobile-header .brand-text {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-light);
        }
        .mobile-header .menu-toggle {
            color: var(--text-light);
            font-size: 1.5rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .mobile-header .menu-toggle:hover { background: rgba(255,255,255,0.08); }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            z-index: 999;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 100px 40px 90px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.82) 0%, rgba(30,58,95,0.70) 100%);
            z-index: 1;
        }
        .hero .container { position: relative; z-index: 2; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            margin-bottom: 20px;
            border: 1px solid rgba(255,255,255,0.20);
        }
        .hero h1 { color: #fff; font-size: 3rem; max-width: 720px; margin-bottom: 18px; }
        .hero h1 span { color: var(--accent); }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.85);
            max-width: 580px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
        .hero-actions .btn-primary {
            background: var(--accent);
            color: #fff;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(245,158,11,0.40);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 10px 32px rgba(245,158,11,0.50); }
        .hero-actions .btn-secondary {
            background: rgba(255,255,255,0.10);
            backdrop-filter: blur(4px);
            color: #fff;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 500;
            border: 1px solid rgba(255,255,255,0.25);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-secondary:hover { background: rgba(255,255,255,0.20); transform: translateY(-2px); }

        /* ===== Section Shared ===== */
        .section { padding: 80px 40px; }
        .section-alt { background: var(--bg-white); }
        .section-header { text-align: center; margin-bottom: 48px; }
        .section-header h2 { margin-bottom: 12px; }
        .section-header p { color: var(--text-muted); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
        .section-header .section-tag {
            display: inline-block;
            background: rgba(245,158,11,0.12);
            color: var(--accent-dark);
            padding: 4px 18px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* ===== Intro / About ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            background: var(--bg-white);
        }
        .intro-image img { width: 100%; height: 320px; object-fit: cover; transition: transform 0.5s; }
        .intro-image:hover img { transform: scale(1.03); }
        .intro-text h3 { margin-bottom: 16px; font-size: 1.6rem; }
        .intro-text p { color: var(--text-body); margin-bottom: 16px; }
        .intro-features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 20px; }
        .intro-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-body);
        }
        .intro-features li i { color: var(--accent); font-size: 1rem; }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border);
        }
        .card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .card-image { height: 200px; overflow: hidden; background: var(--bg-body); }
        .card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
        .card:hover .card-image img { transform: scale(1.05); }
        .card-body { padding: 24px 22px 28px; }
        .card-body .card-tag {
            display: inline-block;
            background: rgba(30,58,95,0.08);
            color: var(--primary);
            padding: 2px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .card-body h3 { margin-bottom: 8px; font-size: 1.15rem; }
        .card-body p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 0; }
        .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            transition: gap var(--transition);
        }
        .card-body .card-link:hover { gap: 10px; color: var(--accent); }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .stat-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-number span { color: var(--accent); }
        .stat-item .stat-label { color: var(--text-muted); font-size: 0.9rem; margin-top: 6px; }

        /* ===== CMS List ===== */
        .cms-list { display: flex; flex-direction: column; gap: 18px; }
        .cms-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .cms-item:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); transform: translateX(4px); }
        .cms-item .cms-cat {
            flex-shrink: 0;
            background: rgba(245,158,11,0.12);
            color: var(--accent-dark);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 600;
        }
        .cms-item .cms-info { flex: 1; }
        .cms-item .cms-info h4 { font-size: 1rem; margin-bottom: 4px; }
        .cms-item .cms-info h4 a { color: var(--text-primary); }
        .cms-item .cms-info h4 a:hover { color: var(--accent); }
        .cms-item .cms-info .cms-meta { font-size: 0.8rem; color: var(--text-muted); display: flex; gap: 16px; }
        .cms-item .cms-info .cms-desc { font-size: 0.88rem; color: var(--text-muted); margin-top: 4px; }
        .cms-item .cms-link {
            flex-shrink: 0;
            color: var(--primary);
            font-size: 1.2rem;
            transition: all var(--transition);
        }
        .cms-item:hover .cms-link { color: var(--accent); transform: translateX(4px); }
        .cms-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 60px;
            left: 16%;
            right: 16%;
            height: 2px;
            background: linear-gradient(to right, var(--accent), var(--border), var(--accent));
            z-index: 0;
        }
        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
            background: var(--bg-body);
            padding: 0 12px;
        }
        .step-item .step-number {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(30,58,95,0.25);
            transition: all var(--transition);
        }
        .step-item:hover .step-number { background: var(--accent); transform: scale(1.06); }
        .step-item h4 { margin-bottom: 8px; }
        .step-item p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 0; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--accent); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: background var(--transition);
            gap: 12px;
        }
        .faq-question:hover { background: rgba(245,158,11,0.04); }
        .faq-question i { color: var(--accent); transition: transform var(--transition); font-size: 1rem; flex-shrink: 0; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            color: var(--text-body);
            font-size: 0.95rem;
            background: rgba(245,158,11,0.02);
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 0 22px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            text-align: center;
            padding: 72px 40px;
            border-radius: var(--radius-lg);
            margin: 0 40px 40px;
        }
        .cta-section h2 { color: #fff; font-size: 2rem; margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.8); max-width: 540px; margin: 0 auto 28px; font-size: 1.05rem; }
        .cta-section .btn-cta {
            background: var(--accent);
            color: #fff;
            padding: 16px 48px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition);
            box-shadow: 0 8px 28px rgba(245,158,11,0.35);
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }
        .cta-section .btn-cta:hover { background: var(--accent-dark); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(245,158,11,0.45); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-sidebar);
            padding: 40px 40px 28px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
        .footer-col p, .footer-col a { color: var(--text-sidebar); font-size: 0.88rem; }
        .footer-col a { display: block; padding: 4px 0; transition: color var(--transition); }
        .footer-col a:hover { color: var(--accent); }
        .footer-col .brand-ft {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-col .brand-ft i {
            width: 34px;
            height: 34px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }
        .footer-col .brand-ft span { font-weight: 700; color: #fff; font-size: 1rem; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid::before { display: none; }
        }

        @media (max-width: 768px) {
            body { flex-direction: column; }
            .sidebar { transform: translateX(-100%); }
            .sidebar.open { transform: translateX(0); }
            .sidebar-overlay.open { display: block; }
            .main-content { margin-left: 0; }
            .mobile-header { display: flex; }
            .hero { padding: 60px 24px 54px; min-height: 400px; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .section { padding: 48px 24px; }
            .intro-grid { grid-template-columns: 1fr; gap: 28px; }
            .intro-features { grid-template-columns: 1fr; }
            .card-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item { padding: 24px 12px; }
            .stat-item .stat-number { font-size: 2rem; }
            .steps-grid { grid-template-columns: 1fr; gap: 24px; }
            .cms-item { flex-direction: column; align-items: flex-start; gap: 10px; }
            .cms-item .cms-link { align-self: flex-end; }
            .cta-section { margin: 0 16px 24px; padding: 48px 20px; border-radius: var(--radius-md); }
            .cta-section h2 { font-size: 1.5rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .site-footer { padding: 32px 20px 20px; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn-primary, .hero-actions .btn-secondary { justify-content: center; }
            .section-header { margin-bottom: 32px; }
        }

        @media (max-width: 520px) {
            .hero h1 { font-size: 1.6rem; }
            .hero { padding: 40px 16px 40px; min-height: 320px; }
            .section { padding: 36px 16px; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item { padding: 18px 10px; }
            .stat-item .stat-number { font-size: 1.6rem; }
            .card-body { padding: 16px 14px 20px; }
            .faq-question { padding: 14px 16px; font-size: 0.9rem; }
            .faq-answer { font-size: 0.85rem; }
            .cta-section { padding: 36px 16px; }
            .cta-section .btn-cta { padding: 14px 28px; font-size: 0.95rem; }
            .container { padding: 0 16px; }
            .mobile-header { padding: 12px 16px; }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
    :root {
        --primary: #1a2a6c;
        --primary-light: #2d4a8e;
        --primary-dark: #0f1a42;
        --accent: #f59e0b;
        --accent-light: #fbbf24;
        --accent-dark: #d97706;
        --bg: #f8f9fc;
        --bg-card: #ffffff;
        --bg-sidebar: #0f1a42;
        --bg-sidebar-hover: #1a2a6c;
        --text: #1e293b;
        --text-light: #64748b;
        --text-white: #f1f5f9;
        --border: #e2e8f0;
        --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
        --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
        --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
        --radius: 12px;
        --radius-sm: 8px;
        --radius-lg: 18px;
        --transition: 0.25s ease;
        --sidebar-width: 240px;
        --header-h: 64px;
        --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
    }

    /* ===== Reset / Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
        font-family: var(--font);
        background: var(--bg);
        color: var(--text);
        line-height: 1.7;
        font-size: 16px;
        display: flex;
        min-height: 100vh;
    }
    a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
    a:hover { color: var(--accent); }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    ul, ol { list-style: none; }
    button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--primary-dark); }
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; margin-bottom: 16px; }
    h3 { font-size: 1.25rem; margin-bottom: 10px; }
    p { margin-bottom: 12px; color: var(--text); }
    .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

    /* ===== 左侧竖向导航 ===== */
    .sidebar {
        position: fixed; top: 0; left: 0; width: var(--sidebar-width); height: 100vh;
        background: var(--bg-sidebar); color: var(--text-white); z-index: 1000;
        display: flex; flex-direction: column; padding: 28px 0 20px; transition: transform var(--transition);
        box-shadow: 2px 0 20px rgba(0,0,0,0.25);
    }
    .sidebar-brand {
        display: flex; align-items: center; gap: 12px; padding: 0 20px 24px; border-bottom: 1px solid rgba(255,255,255,0.08);
        font-size: 1.2rem; font-weight: 700; color: #fff; letter-spacing: 0.5px;
    }
    .sidebar-brand i { color: var(--accent); font-size: 1.5rem; }
    .sidebar-brand span { background: linear-gradient(135deg, #fff, var(--accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .nav-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1.5px; color: rgba(255,255,255,0.35); padding: 24px 20px 8px; font-weight: 600; }
    .sidebar-nav { display: flex; flex-direction: column; gap: 2px; padding: 8px 12px; flex: 1; overflow-y: auto; }
    .sidebar-nav a {
        display: flex; align-items: center; gap: 12px; padding: 11px 16px; border-radius: var(--radius-sm);
        color: rgba(255,255,255,0.7); font-size: 0.95rem; font-weight: 500; transition: all var(--transition);
    }
    .sidebar-nav a i { width: 20px; text-align: center; font-size: 1rem; color: rgba(255,255,255,0.45); transition: color var(--transition); }
    .sidebar-nav a:hover { background: var(--bg-sidebar-hover); color: #fff; }
    .sidebar-nav a:hover i { color: var(--accent); }
    .sidebar-nav a.active { background: var(--primary-light); color: #fff; box-shadow: 0 2px 10px rgba(26,42,108,0.4); }
    .sidebar-nav a.active i { color: var(--accent); }
    .sidebar-footer { padding: 16px 20px 0; border-top: 1px solid rgba(255,255,255,0.06); font-size: 0.75rem; color: rgba(255,255,255,0.3); text-align: center; }

    /* ===== 主内容区 ===== */
    .main-wrapper { margin-left: var(--sidebar-width); flex: 1; min-height: 100vh; display: flex; flex-direction: column; }

    /* ===== 移动端顶部导航 ===== */
    .mobile-header {
        display: none; position: sticky; top: 0; z-index: 999; background: var(--bg-sidebar);
        padding: 0 20px; height: var(--header-h); align-items: center; justify-content: space-between;
        box-shadow: 0 2px 12px rgba(0,0,0,0.15);
    }
    .mobile-header .brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 1.1rem; }
    .mobile-header .brand i { color: var(--accent); font-size: 1.3rem; }
    .menu-btn { background: none; color: #fff; font-size: 1.5rem; cursor: pointer; padding: 6px; border-radius: 6px; }
    .menu-btn:hover { background: rgba(255,255,255,0.1); }

    /* ===== 文章页 Banner ===== */
    .article-banner {
        position: relative; padding: 80px 0 60px; background: var(--primary-dark); overflow: hidden;
    }
    .article-banner::before {
        content: ''; position: absolute; inset: 0;
        background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        opacity: 0.18; pointer-events: none;
    }
    .article-banner .container { position: relative; z-index: 2; }
    .article-banner .breadcrumb {
        display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-bottom: 20px;
    }
    .article-banner .breadcrumb a { color: rgba(255,255,255,0.7); }
    .article-banner .breadcrumb a:hover { color: var(--accent); }
    .article-banner .breadcrumb span { color: rgba(255,255,255,0.4); }
    .article-banner h1 {
        color: #fff; font-size: 2.2rem; max-width: 800px; margin-bottom: 16px; text-shadow: 0 2px 12px rgba(0,0,0,0.3);
    }
    .article-meta {
        display: flex; flex-wrap: wrap; align-items: center; gap: 20px; color: rgba(255,255,255,0.7); font-size: 0.9rem;
    }
    .article-meta .tag {
        display: inline-block; background: var(--accent); color: var(--primary-dark); padding: 3px 14px; border-radius: 20px; font-size: 0.78rem; font-weight: 600;
    }
    .article-meta i { margin-right: 6px; color: var(--accent); }

    /* ===== 文章正文区 ===== */
    .article-section { padding: 60px 0 80px; }
    .article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 40px; }
    .article-body {
        background: var(--bg-card); border-radius: var(--radius); padding: 40px; box-shadow: var(--shadow-sm);
    }
    .article-body .featured-img { width: 100%; border-radius: var(--radius-sm); margin-bottom: 28px; max-height: 420px; object-fit: cover; }
    .article-body .content { font-size: 1.05rem; line-height: 1.9; color: var(--text); }
    .article-body .content p { margin-bottom: 18px; }
    .article-body .content h2, .article-body .content h3 { margin-top: 32px; }
    .article-body .content ul, .article-body .content ol { margin: 16px 0; padding-left: 24px; list-style: disc; }
    .article-body .content li { margin-bottom: 8px; }
    .article-body .content blockquote {
        border-left: 4px solid var(--accent); background: #fef9e7; padding: 16px 24px; margin: 24px 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text);
    }
    .article-body .content img { border-radius: var(--radius-sm); margin: 24px 0; }
    .article-body .content a { color: var(--accent-dark); font-weight: 600; text-decoration: underline; }
    .article-body .content a:hover { color: var(--primary); }

    /* ===== 侧边栏 ===== */
    .article-sidebar { display: flex; flex-direction: column; gap: 28px; }
    .sidebar-card {
        background: var(--bg-card); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm);
    }
    .sidebar-card h3 { font-size: 1.1rem; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--accent); display: flex; align-items: center; gap: 8px; }
    .sidebar-card h3 i { color: var(--accent); }
    .sidebar-card .related-item {
        display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); align-items: flex-start;
    }
    .sidebar-card .related-item:last-child { border-bottom: none; }
    .sidebar-card .related-item img { width: 70px; height: 56px; object-fit: cover; border-radius: 6px; flex-shrink: 0; }
    .sidebar-card .related-item .info { flex: 1; }
    .sidebar-card .related-item .info a { font-weight: 600; font-size: 0.92rem; color: var(--text); display: block; line-height: 1.4; }
    .sidebar-card .related-item .info a:hover { color: var(--accent-dark); }
    .sidebar-card .related-item .info .date { font-size: 0.78rem; color: var(--text-light); margin-top: 4px; }
    .sidebar-cta {
        background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; border-radius: var(--radius); padding: 28px 24px; text-align: center;
    }
    .sidebar-cta h3 { color: #fff; border-bottom: none; justify-content: center; }
    .sidebar-cta p { color: rgba(255,255,255,0.8); font-size: 0.92rem; margin-bottom: 20px; }
    .sidebar-cta .btn { background: var(--accent); color: var(--primary-dark); padding: 12px 28px; border-radius: 30px; font-weight: 700; display: inline-block; transition: all var(--transition); }
    .sidebar-cta .btn:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245,158,11,0.4); }

    /* ===== 空文章状态 ===== */
    .not-found-box { text-align: center; padding: 80px 20px; background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
    .not-found-box i { font-size: 3.5rem; color: var(--accent); margin-bottom: 20px; }
    .not-found-box h2 { color: var(--primary); }
    .not-found-box p { color: var(--text-light); max-width: 420px; margin: 0 auto 24px; }
    .not-found-box .btn { background: var(--primary); color: #fff; padding: 12px 32px; border-radius: 30px; font-weight: 600; display: inline-block; transition: all var(--transition); }
    .not-found-box .btn:hover { background: var(--primary-light); transform: translateY(-2px); }

    /* ===== 页脚 ===== */
    .site-footer { background: var(--primary-dark); color: var(--text-white); padding: 60px 0 0; margin-top: auto; }
    .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
    .footer-col .brand-ft { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
    .footer-col .brand-ft i { color: var(--accent); font-size: 1.4rem; }
    .footer-col p { color: rgba(255,255,255,0.65); font-size: 0.9rem; line-height: 1.7; }
    .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 18px; font-weight: 600; }
    .footer-col a { display: block; color: rgba(255,255,255,0.6); font-size: 0.9rem; padding: 5px 0; transition: all var(--transition); }
    .footer-col a:hover { color: var(--accent); padding-left: 4px; }
    .footer-bottom { padding: 24px 0; text-align: center; }
    .footer-bottom p { color: rgba(255,255,255,0.35); font-size: 0.8rem; margin: 0; }

    /* ===== 通用组件 ===== */
    .badge { display: inline-block; background: var(--accent); color: var(--primary-dark); padding: 2px 12px; border-radius: 20px; font-size: 0.78rem; font-weight: 600; }
    .divider { height: 1px; background: var(--border); margin: 40px 0; }
    .text-center { text-align: center; }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .article-layout { grid-template-columns: 1fr; }
        .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
        .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
        .sidebar { transform: translateX(-100%); }
        .sidebar.open { transform: translateX(0); }
        .main-wrapper { margin-left: 0; }
        .mobile-header { display: flex; }
        body.menu-open { overflow: hidden; }
        body.menu-open .sidebar { transform: translateX(0); }
        .overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 999; }
        body.menu-open .overlay { display: block; }
        .article-banner { padding: 60px 0 40px; }
        .article-banner h1 { font-size: 1.6rem; }
        .article-body { padding: 24px 20px; }
        .article-meta { gap: 12px; font-size: 0.82rem; }
        .article-section { padding: 36px 0 50px; }
        .article-sidebar { grid-template-columns: 1fr; }
        .footer-grid { grid-template-columns: 1fr; gap: 28px; }
        .sidebar-card .related-item img { width: 60px; height: 48px; }
    }
    @media (max-width: 520px) {
        .article-banner h1 { font-size: 1.3rem; }
        .article-body { padding: 16px 14px; }
        .article-body .content { font-size: 0.95rem; }
        .container { padding: 0 14px; }
        .sidebar-cta { padding: 20px 16px; }
    }

    /* ===== 遮罩层 ===== */
    .overlay { display: none; }
    @media (max-width: 768px) {
        .overlay { display: block; }
    }

    /* ===== 文章内容样式增强 ===== */
    .content table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 0.92rem; }
    .content table th, .content table td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
    .content table th { background: var(--primary); color: #fff; font-weight: 600; }
    .content table tr:nth-child(even) { background: #f8f9fc; }
    .content code { background: #f1f5f9; padding: 2px 8px; border-radius: 4px; font-size: 0.88rem; color: var(--primary); }
    .content pre { background: #1e293b; color: #e2e8f0; padding: 20px; border-radius: var(--radius-sm); overflow-x: auto; margin: 20px 0; font-size: 0.9rem; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a4a;
            --primary-light: #2c4068;
            --primary-dark: #0f1a30;
            --accent: #f0b429;
            --accent-light: #f7d06a;
            --accent-dark: #d49a1a;
            --bg: #f5f7fc;
            --bg-card: #ffffff;
            --bg-dark: #eef1f7;
            --text: #1e293b;
            --text-light: #64748b;
            --text-white: #f8fafc;
            --border: #dce1eb;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(26, 42, 74, 0.08);
            --shadow-hover: 0 12px 40px rgba(26, 42, 74, 0.15);
            --shadow-nav: 2px 0 24px rgba(26, 42, 74, 0.08);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --sidebar-width: 240px;
            --header-height: 64px;
            --max-width: 1200px;
        }

        /* ===== 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);
            display: flex;
            min-height: 100vh;
            flex-direction: column;
        }

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: var(--primary);
            font-weight: 700;
        }

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Layout: Sidebar + Content ===== */
        .layout-wrapper {
            display: flex;
            min-height: 100vh;
        }

        /* ===== Sidebar Navigation ===== */
        .sidebar {
            width: var(--sidebar-width);
            background: var(--bg-card);
            border-right: 1px solid var(--border);
            padding: 28px 0 28px 20px;
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            box-shadow: var(--shadow-nav);
            transition: var(--transition);
            overflow-y: auto;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 16px 28px 12px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 20px;
        }

        .sidebar-brand .brand-icon {
            font-size: 1.8rem;
            color: var(--accent);
            background: rgba(240, 180, 41, 0.12);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .sidebar-brand .brand-text {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .sidebar-brand .brand-text span {
            color: var(--accent-dark);
        }

        .nav-label {
            font-size: 0.72rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-light);
            padding: 0 16px 8px 12px;
            font-weight: 600;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding-right: 16px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 16px 10px 12px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 1rem;
            color: var(--text-light);
            transition: var(--transition);
        }

        .sidebar-nav a:hover {
            background: rgba(240, 180, 41, 0.08);
            color: var(--primary);
        }

        .sidebar-nav a:hover i {
            color: var(--accent-dark);
        }

        .sidebar-nav a.active {
            background: rgba(240, 180, 41, 0.14);
            color: var(--primary);
            font-weight: 600;
        }

        .sidebar-nav a.active i {
            color: var(--accent-dark);
        }

        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--accent);
            border-radius: 0 4px 4px 0;
        }

        /* ===== Main Content Area ===== */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            padding: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== Page Header ===== */
        .page-header {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 60px 0 70px;
            position: relative;
        }

        .page-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 42, 74, 0.88) 0%, rgba(26, 42, 74, 0.70) 100%);
            z-index: 1;
        }

        .page-header .container {
            position: relative;
            z-index: 2;
        }

        .page-header h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .page-header h1 i {
            color: var(--accent);
            margin-right: 12px;
        }

        .page-header p {
            font-size: 1.15rem;
            color: rgba(248, 250, 252, 0.85);
            max-width: 640px;
            line-height: 1.7;
        }

        .page-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(248, 250, 252, 0.7);
            margin-bottom: 20px;
        }

        .page-breadcrumb a {
            color: rgba(248, 250, 252, 0.8);
            transition: var(--transition);
        }

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

        .page-breadcrumb .sep {
            color: rgba(248, 250, 252, 0.4);
        }

        .page-breadcrumb .current {
            color: var(--accent-light);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 64px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(240, 180, 41, 0.12);
            color: var(--accent-dark);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-sub {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 40px;
        }

        .section-sub.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .section.center {
            text-align: center;
        }

        /* ===== Guide Flow ===== */
        .guide-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
            margin-top: 20px;
        }

        .guide-step {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            text-align: center;
        }

        .guide-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .guide-step .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .guide-step h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .guide-step p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        .guide-step .step-icon {
            font-size: 2.2rem;
            color: var(--accent-dark);
            margin-bottom: 12px;
        }

        /* ===== Detailed Guide Cards ===== */
        .guide-detail-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 20px;
        }

        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

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

        .guide-card .card-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(240, 180, 41, 0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-dark);
        }

        .guide-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--primary);
        }

        .guide-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        .guide-card .card-body .tag {
            display: inline-block;
            margin-top: 10px;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(240, 180, 41, 0.10);
            color: var(--accent-dark);
        }

        .guide-card .card-body .tag.primary {
            background: rgba(26, 42, 74, 0.08);
            color: var(--primary);
        }

        /* ===== Image Banner Block ===== */
        .image-banner-block {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            margin-top: 20px;
        }

        .image-banner-block .banner-text {
            flex: 1;
            padding: 40px 40px;
        }

        .image-banner-block .banner-text h2 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--primary);
        }

        .image-banner-block .banner-text p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .image-banner-block .banner-img {
            flex: 0 0 320px;
            height: 260px;
            background: var(--bg-dark);
            background-image: url('/assets/images/coverpic/cover-2.png');
            background-size: cover;
            background-position: center;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 20px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: var(--accent);
            box-shadow: 0 2px 12px rgba(240, 180, 41, 0.08);
        }

        .faq-item .faq-q {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--primary);
        }

        .faq-item .faq-q i {
            color: var(--accent-dark);
            font-size: 0.9rem;
        }

        .faq-item .faq-a {
            margin-top: 10px;
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
            padding-left: 26px;
            border-left: 2px solid var(--accent);
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
            margin-top: 20px;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 42, 74, 0.88) 0%, rgba(26, 42, 74, 0.72) 100%);
            z-index: 1;
        }

        .cta-block .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-block h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .cta-block p {
            font-size: 1.05rem;
            color: rgba(248, 250, 252, 0.85);
            margin-bottom: 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 50px;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(240, 180, 41, 0.30);
        }

        .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240, 180, 41, 0.40);
            color: var(--primary-dark);
        }

        .btn-cta i {
            font-size: 1.1rem;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 20px;
        }

        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

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

        .stat-item .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-item .stat-num span {
            color: var(--accent-dark);
        }

        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        .stat-item .stat-icon {
            font-size: 1.6rem;
            color: var(--accent-dark);
            margin-bottom: 8px;
        }

        /* ===== Buttons ===== */
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
            background: transparent;
            font-size: 0.9rem;
        }

        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(248, 250, 252, 0.8);
            padding: 48px 0 28px;
            margin-top: auto;
        }

        .site-footer .container {
            max-width: var(--max-width);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-col .brand-ft {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .footer-col .brand-ft i {
            color: var(--accent);
            font-size: 1.4rem;
        }

        .footer-col p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(248, 250, 252, 0.65);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(248, 250, 252, 0.65);
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(248, 250, 252, 0.10);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(248, 250, 252, 0.50);
        }

        .footer-bottom p {
            margin: 2px 0;
        }

        /* ===== Mobile Toggle ===== */
        .mobile-toggle {
            display: none;
            position: fixed;
            top: 12px;
            left: 12px;
            z-index: 1100;
            background: var(--bg-card);
            border: 1px solid var(--border);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            font-size: 1.3rem;
            color: var(--primary);
            box-shadow: var(--shadow);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            background: var(--accent);
            color: var(--primary-dark);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.35);
            z-index: 999;
            backdrop-filter: blur(2px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .guide-detail-list {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .image-banner-block {
                flex-direction: column;
            }
            .image-banner-block .banner-img {
                flex: unset;
                width: 100%;
                height: 200px;
            }
            .image-banner-block .banner-text {
                padding: 28px 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --sidebar-width: 0px;
            }

            .mobile-toggle {
                display: flex;
            }

            .sidebar {
                transform: translateX(-120%);
                width: 280px;
                box-shadow: 4px 0 40px rgba(0, 0, 0, 0.15);
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .sidebar-overlay.active {
                display: block;
            }

            .main-content {
                margin-left: 0;
            }

            .page-header {
                padding: 40px 0 50px;
            }

            .page-header h1 {
                font-size: 1.8rem;
            }

            .page-header h1 i {
                font-size: 1.4rem;
            }

            .page-header p {
                font-size: 1rem;
            }

            .section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .guide-flow {
                grid-template-columns: 1fr 1fr;
            }

            .guide-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 20px;
            }

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

            .stat-item {
                padding: 20px 12px;
            }

            .stat-item .stat-num {
                font-size: 1.5rem;
            }

            .cta-block {
                padding: 40px 24px;
            }

            .cta-block h2 {
                font-size: 1.5rem;
            }

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

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

            .image-banner-block .banner-text h2 {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .page-header {
                padding: 32px 0 40px;
            }

            .page-header h1 {
                font-size: 1.5rem;
            }

            .section-title {
                font-size: 1.3rem;
            }

            .guide-flow {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-item {
                padding: 16px 10px;
            }

            .stat-item .stat-num {
                font-size: 1.3rem;
            }

            .guide-card {
                padding: 20px 16px;
            }

            .cta-block {
                padding: 32px 16px;
            }

            .cta-block h2 {
                font-size: 1.3rem;
            }

            .btn-cta {
                padding: 12px 24px;
                font-size: 0.95rem;
            }

            .footer-grid {
                gap: 20px;
            }

            .sidebar {
                width: 260px;
                padding: 20px 0 20px 16px;
            }

            .sidebar-brand {
                padding: 0 12px 20px 8px;
            }

            .sidebar-nav a {
                font-size: 0.9rem;
                padding: 8px 12px 8px 8px;
            }
        }

        /* ===== Utility ===== */
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .text-center {
            text-align: center;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }

        /* ===== Focus / Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Smooth Scroll Padding ===== */
        #faq {
            scroll-margin-top: 20px;
        }