/* roulang page: index */
/* ===== Design Variables ===== */
    :root {
        --primary: #2B5F8A;
        --primary-light: #4A90D9;
        --primary-dark: #1A3A5C;
        --accent: #F0B429;
        --accent-light: #F7C948;
        --accent-dark: #D49520;
        --bg-main: #F8F9FA;
        --bg-card: #FFFFFF;
        --bg-dark: #1A2A3A;
        --text-main: #1A202C;
        --text-weak: #718096;
        --text-light: #FFFFFF;
        --border: #E2E8F0;
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 20px;
        --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
        --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
        --shadow-lg: 0 20px 48px rgba(0,0,0,0.15);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --nav-width: 240px;
        --space-xs: 8px;
        --space-sm: 16px;
        --space-md: 32px;
        --space-lg: 56px;
        --space-xl: 80px;
        --max-width: 1200px;
        --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 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-family); font-size: 16px; line-height: 1.7; color: var(--text-main); background: var(--bg-main); }
    a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
    a:hover { color: var(--primary-light); }
    a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
    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 { line-height: 1.3; font-weight: 700; color: var(--text-main); }
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2.0rem; margin-bottom: var(--space-sm); }
    h3 { font-size: 1.4rem; }
    h4 { font-size: 1.1rem; }
    p { margin-bottom: var(--space-sm); color: var(--text-weak); }
    .container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-md); }
    .section { padding: var(--space-xl) 0; }
    .section-title { text-align: center; margin-bottom: var(--space-lg); }
    .section-title h2 { position: relative; display: inline-block; }
    .section-title h2::after { content: ''; display: block; width: 60px; height: 4px; background: var(--accent); border-radius: 2px; margin: var(--space-sm) auto 0; }
    .section-title p { max-width: 600px; margin: var(--space-sm) auto 0; font-size: 1.1rem; }
    .text-center { text-align: center; }
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

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

    /* ===== Sidebar Nav ===== */
    .sidebar { position: fixed; top: 0; left: 0; width: var(--nav-width); height: 100vh; background: var(--bg-card); border-right: 1px solid var(--border); display: flex; flex-direction: column; z-index: 1000; transition: transform var(--transition); overflow-y: auto; }
    .sidebar-brand { padding: var(--space-md) var(--space-sm); display: flex; align-items: center; gap: var(--space-sm); border-bottom: 1px solid var(--border); }
    .sidebar-brand .logo-icon { width: 40px; height: 40px; background: var(--primary); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.4rem; font-weight: 800; flex-shrink: 0; }
    .sidebar-brand .logo-text { font-size: 1.3rem; font-weight: 700; color: var(--primary); letter-spacing: 1px; }
    .sidebar-nav { flex: 1; padding: var(--space-sm) 0; }
    .sidebar-nav a { display: flex; align-items: center; gap: var(--space-sm); padding: var(--space-sm) var(--space-md); color: var(--text-weak); font-weight: 500; border-left: 3px solid transparent; transition: all var(--transition); }
    .sidebar-nav a i { width: 20px; text-align: center; font-size: 1.1rem; }
    .sidebar-nav a:hover { color: var(--primary); background: rgba(43, 95, 138, 0.04); border-left-color: var(--primary-light); }
    .sidebar-nav a.active { color: var(--primary); background: rgba(43, 95, 138, 0.08); border-left-color: var(--primary); font-weight: 600; }
    .sidebar-footer { padding: var(--space-sm) var(--space-md); border-top: 1px solid var(--border); font-size: 0.85rem; color: var(--text-weak); text-align: center; }
    .sidebar-footer .social-links { display: flex; justify-content: center; gap: var(--space-sm); margin-top: var(--space-xs); }
    .sidebar-footer .social-links a { color: var(--text-weak); font-size: 1.1rem; }
    .sidebar-footer .social-links a:hover { color: var(--primary); }

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

    /* ===== Mobile Header ===== */
    .mobile-header { display: none; position: fixed; top: 0; left: 0; right: 0; height: 64px; background: var(--bg-card); border-bottom: 1px solid var(--border); z-index: 999; padding: 0 var(--space-sm); align-items: center; justify-content: space-between; }
    .mobile-header .logo-text { font-size: 1.2rem; font-weight: 700; color: var(--primary); }
    .mobile-header .menu-toggle { font-size: 1.5rem; color: var(--text-main); padding: var(--space-xs); }
    .sidebar-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.4); z-index: 998; }

    /* ===== Hero Section ===== */
    .hero { position: relative; min-height: 520px; display: flex; align-items: center; justify-content: center; text-align: center; padding: var(--space-xl) var(--space-md); background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%); overflow: hidden; }
    .hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity: 0.25; mix-blend-mode: overlay; }
    .hero-content { position: relative; z-index: 1; max-width: 800px; color: var(--text-light); }
    .hero-content h1 { font-size: 3.2rem; font-weight: 800; color: #fff; margin-bottom: var(--space-sm); letter-spacing: -0.5px; }
    .hero-content h1 span { color: var(--accent); }
    .hero-content p { font-size: 1.2rem; color: rgba(255,255,255,0.85); margin-bottom: var(--space-md); max-width: 600px; margin-left: auto; margin-right: auto; }
    .hero-actions { display: flex; gap: var(--space-sm); justify-content: center; flex-wrap: wrap; }

    /* ===== Buttons ===== */
    .btn { display: inline-flex; align-items: center; gap: var(--space-xs); padding: 12px 28px; border-radius: 50px; font-weight: 600; font-size: 1rem; transition: all var(--transition); border: 2px solid transparent; }
    .btn-primary { background: var(--accent); color: var(--primary-dark); border-color: var(--accent); }
    .btn-primary:hover { background: var(--accent-light); border-color: var(--accent-light); color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
    .btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
    .btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; color: #fff; transform: translateY(-2px); }
    .btn-accent { background: var(--accent); color: var(--primary-dark); border-color: var(--accent); }
    .btn-accent:hover { background: var(--accent-light); border-color: var(--accent-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }

    /* ===== Card System ===== */
    .card { background: var(--bg-card); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); overflow: hidden; transition: all var(--transition); }
    .card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .card-img { width: 100%; height: 200px; object-fit: cover; }
    .card-body { padding: var(--space-md); }
    .card-body h3 { margin-bottom: var(--space-xs); font-size: 1.15rem; }
    .card-body p { font-size: 0.95rem; margin-bottom: var(--space-sm); }
    .card-tag { display: inline-block; padding: 4px 12px; border-radius: 20px; font-size: 0.8rem; font-weight: 500; background: rgba(43, 95, 138, 0.08); color: var(--primary); margin-bottom: var(--space-xs); }
    .card-meta { display: flex; align-items: center; gap: var(--space-sm); font-size: 0.85rem; color: var(--text-weak); }

    /* ===== Grid ===== */
    .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
    .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--space-md); }
    .grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: var(--space-md); }

    /* ===== About / Intro Section ===== */
    .about-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); align-items: center; }
    .about-image { border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-md); }
    .about-image img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
    .about-text h2 { margin-bottom: var(--space-sm); }
    .about-text p { font-size: 1.05rem; margin-bottom: var(--space-sm); }
    .about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-sm); margin-top: var(--space-md); }
    .stat-item { text-align: center; padding: var(--space-sm); background: var(--bg-main); border-radius: var(--radius-sm); }
    .stat-item .num { font-size: 1.8rem; font-weight: 800; color: var(--primary); display: block; }
    .stat-item .label { font-size: 0.85rem; color: var(--text-weak); }

    /* ===== Category Entry ===== */
    .category-entry { background: var(--bg-card); border-radius: var(--radius-lg); padding: var(--space-lg); text-align: center; box-shadow: var(--shadow-sm); }
    .category-entry .cat-icon { width: 80px; height: 80px; margin: 0 auto var(--space-sm); background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2rem; color: #fff; }
    .category-entry h3 { font-size: 1.5rem; margin-bottom: var(--space-xs); }
    .category-entry p { max-width: 480px; margin: 0 auto var(--space-md); }

    /* ===== Flow / Process ===== */
    .flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }
    .flow-step { text-align: center; padding: var(--space-md); position: relative; }
    .flow-step .step-num { width: 48px; height: 48px; margin: 0 auto var(--space-sm); background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 700; }
    .flow-step h4 { margin-bottom: var(--space-xs); }
    .flow-step p { font-size: 0.92rem; }
    .flow-step::after { content: '→'; position: absolute; right: -12px; top: 50%; transform: translateY(-50%); font-size: 1.5rem; color: var(--border); }
    .flow-step:last-child::after { display: none; }

    /* ===== Features ===== */
    .feature-card { padding: var(--space-md); text-align: center; }
    .feature-card .feat-icon { width: 60px; height: 60px; margin: 0 auto var(--space-sm); background: rgba(43, 95, 138, 0.08); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--primary); }
    .feature-card h4 { margin-bottom: var(--space-xs); }

    /* ===== FAQ ===== */
    .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-sm); }
    .faq-item { background: var(--bg-card); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); overflow: hidden; transition: box-shadow var(--transition); }
    .faq-item:hover { box-shadow: var(--shadow-md); }
    .faq-question { width: 100%; padding: var(--space-md); text-align: left; font-weight: 600; font-size: 1.05rem; color: var(--text-main); background: none; display: flex; justify-content: space-between; align-items: center; gap: var(--space-sm); }
    .faq-question i { transition: transform var(--transition); color: var(--primary); font-size: 0.9rem; }
    .faq-item.open .faq-question i { transform: rotate(180deg); }
    .faq-answer { max-height: 0; padding: 0 var(--space-md); overflow: hidden; transition: all var(--transition); }
    .faq-item.open .faq-answer { max-height: 300px; padding: 0 var(--space-md) var(--space-md); }
    .faq-answer p { font-size: 0.95rem; margin-bottom: 0; }

    /* ===== CTA ===== */
    .cta-section { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); padding: var(--space-xl) var(--space-md); text-align: center; color: #fff; }
    .cta-section h2 { color: #fff; }
    .cta-section p { color: rgba(255,255,255,0.85); max-width: 600px; margin: var(--space-sm) auto var(--space-md); }

    /* ===== Footer ===== */
    .site-footer { background: var(--bg-card); border-top: 1px solid var(--border); padding: var(--space-lg) 0 var(--space-md); }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-lg); }
    .footer-brand .logo-text { font-size: 1.2rem; font-weight: 700; color: var(--primary); margin-bottom: var(--space-xs); display: block; }
    .footer-brand p { font-size: 0.92rem; max-width: 300px; }
    .footer-col h4 { font-size: 1rem; margin-bottom: var(--space-sm); color: var(--text-main); }
    .footer-col a { display: block; padding: 4px 0; font-size: 0.92rem; color: var(--text-weak); }
    .footer-col a:hover { color: var(--primary); }
    .footer-bottom { border-top: 1px solid var(--border); margin-top: var(--space-lg); padding-top: var(--space-md); text-align: center; font-size: 0.85rem; color: var(--text-weak); }

    /* ===== CMS List ===== */
    .cms-list .card { display: flex; flex-direction: column; }
    .cms-list .card .card-body { flex: 1; display: flex; flex-direction: column; }
    .cms-list .card .card-body .btn { margin-top: auto; align-self: flex-start; }
    .cms-empty { text-align: center; padding: var(--space-lg); color: var(--text-weak); font-size: 1.1rem; }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .grid-4 { grid-template-columns: 1fr 1fr; }
        .flow-grid { grid-template-columns: 1fr 1fr; }
        .flow-step:nth-child(2)::after { display: none; }
        .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
        :root { --nav-width: 0px; }
        .sidebar { transform: translateX(-100%); }
        .sidebar.open { transform: translateX(0); }
        .sidebar-overlay.open { display: block; }
        .mobile-header { display: flex; }
        .main-content { margin-left: 0; padding-top: 64px; }
        .hero { min-height: 400px; padding: var(--space-lg) var(--space-sm); }
        .hero-content h1 { font-size: 2.2rem; }
        .hero-content p { font-size: 1rem; }
        .about-wrap { grid-template-columns: 1fr; }
        .about-image { order: -1; }
        .grid-2, .grid-3 { grid-template-columns: 1fr; }
        .flow-grid { grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
        .flow-step::after { display: none; }
        .footer-grid { grid-template-columns: 1fr; gap: var(--space-md); }
        .section { padding: var(--space-lg) 0; }
        h1 { font-size: 2.0rem; }
        h2 { font-size: 1.6rem; }
        .about-stats { grid-template-columns: repeat(3, 1fr); gap: var(--space-xs); }
        .stat-item .num { font-size: 1.4rem; }
        .category-entry { padding: var(--space-md); }
        .cta-section { padding: var(--space-lg) var(--space-sm); }
    }

    @media (max-width: 520px) {
        .hero-content h1 { font-size: 1.8rem; }
        .hero-actions { flex-direction: column; align-items: center; }
        .btn { width: 100%; max-width: 260px; justify-content: center; }
        .flow-grid { grid-template-columns: 1fr; }
        .grid-4 { grid-template-columns: 1fr; }
        .about-stats { grid-template-columns: 1fr; gap: var(--space-xs); }
        .stat-item { padding: var(--space-xs); }
        .section-title h2 { font-size: 1.4rem; }
    }

    /* ===== Utility ===== */
    .mt-sm { margin-top: var(--space-sm); }
    .mt-md { margin-top: var(--space-md); }
    .mb-sm { margin-bottom: var(--space-sm); }
    .mb-md { margin-bottom: var(--space-md); }
    .gap-sm { gap: var(--space-sm); }
    .gap-md { gap: var(--space-md); }
    .flex-center { display: flex; align-items: center; justify-content: center; }
    .bg-soft { background: var(--bg-main); }
    .bg-white { background: var(--bg-card); }
    .rounded { border-radius: var(--radius-md); }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #2b1b3d;
            --primary-light: #4a2d6a;
            --primary-dark: #1a0f28;
            --accent: #e8c76a;
            --accent-light: #f0d98a;
            --accent-dark: #d4a94a;
            --bg-light: #f9f7f4;
            --bg-white: #ffffff;
            --bg-dark: #1a0f28;
            --text-dark: #1e1a24;
            --text-body: #3a3545;
            --text-weak: #8a8498;
            --text-white: #f5f0fa;
            --border-light: #e8e3ee;
            --shadow-sm: 0 2px 12px rgba(43, 27, 61, 0.06);
            --shadow-md: 0 8px 30px rgba(43, 27, 61, 0.10);
            --shadow-lg: 0 20px 50px rgba(43, 27, 61, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --sidebar-w: 240px;
            --header-h: 0px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --transition: 0.3s 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-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-light);
            color: var(--text-body);
            line-height: 1.7;
            display: flex;
            min-height: 100vh;
        }
        a { color: var(--primary-light); 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); }
        ul, ol { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }

        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed; top: 0; left: 0; width: var(--sidebar-w); height: 100vh;
            background: var(--primary-dark); color: var(--text-white);
            display: flex; flex-direction: column; z-index: 1000;
            transition: transform var(--transition);
            box-shadow: 2px 0 30px rgba(0,0,0,0.25);
            overflow-y: auto;
        }
        .sidebar-brand {
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            text-align: center;
        }
        .sidebar-brand .logo-text {
            font-size: 1.6rem; font-weight: 700; letter-spacing: 2px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .sidebar-brand p {
            font-size: 0.75rem; color: rgba(255,255,255,0.4);
            margin-top: 4px; letter-spacing: 4px;
        }
        .sidebar-nav {
            padding: 16px 12px; flex: 1; display: flex; flex-direction: column; gap: 4px;
        }
        .sidebar-nav a {
            display: flex; align-items: center; gap: 12px;
            padding: 12px 16px; border-radius: var(--radius-sm);
            color: rgba(255,255,255,0.6); font-size: 0.95rem; font-weight: 500;
            transition: var(--transition); text-decoration: none;
        }
        .sidebar-nav a i { width: 20px; text-align: center; font-size: 1rem; color: rgba(255,255,255,0.35); }
        .sidebar-nav a:hover {
            background: rgba(255,255,255,0.08); color: var(--accent-light);
        }
        .sidebar-nav a:hover i { color: var(--accent-light); }
        .sidebar-nav a.active {
            background: rgba(232, 199, 106, 0.12);
            color: var(--accent);
        }
        .sidebar-nav a.active i { color: var(--accent); }
        .sidebar-footer {
            padding: 16px 20px; border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 0.7rem; color: rgba(255,255,255,0.25); text-align: center;
        }

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

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            background: var(--primary-dark);
            padding: 14px 20px;
            align-items: center;
            justify-content: space-between;
            position: sticky; top: 0; z-index: 999;
            box-shadow: 0 2px 20px rgba(0,0,0,0.15);
        }
        .mobile-header .logo-text {
            font-size: 1.3rem; font-weight: 700;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .menu-toggle {
            background: none; border: none; color: var(--accent);
            font-size: 1.4rem; cursor: pointer; padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .menu-toggle:hover { background: rgba(255,255,255,0.08); }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-white);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(26,15,40,0.88) 0%, rgba(43,27,61,0.70) 100%);
            z-index: 0;
        }
        .article-banner .container {
            position: relative; z-index: 1;
            max-width: 860px; margin: 0 auto;
        }
        .article-banner .breadcrumb {
            display: flex; align-items: center; gap: 8px;
            font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-bottom: 20px;
        }
        .article-banner .breadcrumb a { color: rgba(255,255,255,0.6); }
        .article-banner .breadcrumb a:hover { color: var(--accent); }
        .article-banner .breadcrumb span { color: var(--accent); }
        .article-banner .post-category {
            display: inline-block;
            background: var(--accent); color: var(--primary-dark);
            padding: 4px 16px; border-radius: 20px;
            font-size: 0.8rem; font-weight: 600; letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .article-banner h1 {
            font-size: 2.2rem; font-weight: 800; line-height: 1.3;
            color: var(--text-white); margin-bottom: 16px;
        }
        .article-banner .post-meta {
            display: flex; align-items: center; gap: 20px;
            font-size: 0.85rem; color: rgba(255,255,255,0.55);
        }
        .article-banner .post-meta i { margin-right: 4px; }

        /* ===== Article Body ===== */
        .article-section {
            padding: 50px 0 60px;
        }
        .article-section .container {
            max-width: 860px; margin: 0 auto;
        }
        .article-content {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 48px 50px;
            box-shadow: var(--shadow-sm);
            line-height: 1.9;
            font-size: 1.05rem;
            color: var(--text-body);
        }
        .article-content p {
            margin-bottom: 1.4em;
        }
        .article-content h2, .article-content h3 {
            color: var(--primary-dark);
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            font-weight: 700;
        }
        .article-content h2 { font-size: 1.5rem; }
        .article-content h3 { font-size: 1.25rem; }
        .article-content ul, .article-content ol {
            margin-bottom: 1.4em;
            padding-left: 1.6em;
        }
        .article-content ul { list-style: disc; }
        .article-content ol { list-style: decimal; }
        .article-content li { margin-bottom: 0.4em; }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-light);
            padding: 16px 24px;
            margin: 1.4em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-weak);
            font-style: italic;
        }
        .article-content a { color: var(--primary-light); text-decoration: underline; }
        .article-content a:hover { color: var(--accent-dark); }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }
        .article-not-found i { font-size: 3rem; color: var(--text-weak); margin-bottom: 16px; }
        .article-not-found h2 { font-size: 1.6rem; color: var(--primary-dark); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-weak); margin-bottom: 20px; }
        .article-not-found .btn-back {
            display: inline-block;
            background: var(--primary);
            color: var(--accent);
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn-back:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        /* ===== Related / CTA ===== */
        .article-cta {
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 60px 0;
            color: var(--text-white);
            text-align: center;
        }
        .article-cta::before {
            content: '';
            position: absolute; inset: 0;
            background: rgba(26,15,40,0.75);
        }
        .article-cta .container { position: relative; z-index: 1; }
        .article-cta h2 {
            font-size: 1.8rem; font-weight: 700; margin-bottom: 12px;
        }
        .article-cta p {
            color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto 24px;
        }
        .article-cta .btn-cta {
            display: inline-block;
            background: var(--accent); color: var(--primary-dark);
            padding: 14px 40px; border-radius: var(--radius-sm);
            font-weight: 700; font-size: 1rem;
            transition: var(--transition);
        }
        .article-cta .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(232,199,106,0.3);
        }

        /* ===== Footer (shared) ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 20px;
            margin-top: auto;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        .site-footer .logo-text {
            font-size: 1.4rem; font-weight: 700;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            margin-bottom: 8px;
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.45);
            max-width: 280px;
            line-height: 1.6;
        }
        .site-footer .footer-col h4 {
            color: var(--accent);
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .site-footer .footer-col a {
            display: block;
            color: rgba(255,255,255,0.5);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.3);
        }
        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.35);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ===== Mobile Overlay ===== */
        .sidebar-overlay {
            display: none;
            position: fixed; inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 999;
            backdrop-filter: blur(4px);
        }
        .sidebar-overlay.open { display: block; }

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

        @media (max-width: 768px) {
            :root { --sidebar-w: 260px; }
            .sidebar { transform: translateX(-100%); }
            .sidebar.open { transform: translateX(0); }
            .mobile-header { display: flex; }
            .main-content { margin-left: 0; }
            .article-banner { padding: 40px 0 32px; }
            .article-banner h1 { font-size: 1.4rem; }
            .article-content { padding: 24px 16px; font-size: 0.98rem; }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .article-cta h2 { font-size: 1.4rem; }
            .article-banner .post-meta { flex-wrap: wrap; gap: 12px; }
        }

        @media (max-width: 520px) {
            .article-banner { padding: 28px 0 24px; }
            .article-banner h1 { font-size: 1.2rem; }
            .article-content { padding: 16px 12px; font-size: 0.92rem; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 16px; }
            .article-cta h2 { font-size: 1.2rem; }
            .article-cta .btn-cta { padding: 12px 28px; font-size: 0.9rem; }
            .sidebar-brand .logo-text { font-size: 1.3rem; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --primary-dark: #0f0f1a;
            --accent: #e94560;
            --accent-light: #ff6b81;
            --accent-dark: #c23152;
            --bg-body: #f8f9fc;
            --bg-card: #ffffff;
            --bg-alt: #eef0f7;
            --text-main: #1a1a2e;
            --text-weak: #6b7280;
            --text-inverse: #ffffff;
            --border: #e5e7eb;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.12);
            --transition: 0.25s ease;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --sidebar-width: 240px;
            --header-height: 0px;
            --max-width: 1200px;
            --spacing-section: 5rem;
            --spacing-block: 2.5rem;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.6;
            display: flex;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        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: 1.25;
            font-weight: 700;
            color: var(--text-main);
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.35rem;
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-weak);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Sidebar Navigation (App Shell Left) ===== */
        .app-shell {
            display: flex;
            width: 100%;
            min-height: 100vh;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary);
            color: var(--text-inverse);
            display: flex;
            flex-direction: column;
            padding: 2rem 1.25rem;
            z-index: 1000;
            transition: transform 0.3s ease;
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.15);
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: #fff;
            margin-bottom: 2.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .sidebar-logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
            flex: 1;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 0.85rem;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
        }
        .sidebar-nav a i {
            width: 1.25rem;
            text-align: center;
            font-size: 1.1rem;
        }
        .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 14px rgba(233, 69, 96, 0.35);
        }
        .sidebar-meta {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.3);
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
        }

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

        /* ===== Mobile Toggle ===== */
        .sidebar-toggle {
            display: none;
            position: fixed;
            top: 1rem;
            left: 1rem;
            z-index: 1100;
            background: var(--primary);
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: background var(--transition);
        }
        .sidebar-toggle:hover {
            background: var(--primary-light);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.4);
            z-index: 999;
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            padding: 5rem 2rem 4rem;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 60%, #2a2a4e 100%);
            color: #fff;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(233, 69, 96, 0.12) 0%, transparent 70%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.35rem 1.2rem;
            border-radius: 50px;
            letter-spacing: 0.08em;
            margin-bottom: 1.25rem;
            text-transform: uppercase;
        }
        .page-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }
        .page-hero h1 i {
            color: var(--accent);
        }
        .page-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 1.5rem;
        }
        .page-hero .hero-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(233, 69, 96, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-accent-light {
            background: var(--accent-light);
            color: #fff;
            border-color: var(--accent-light);
        }
        .btn-accent-light:hover {
            background: var(--accent);
            border-color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(233, 69, 96, 0.3);
        }

        /* ===== Section Shared ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2.2rem;
            margin-bottom: 0.75rem;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 0.75rem auto 0;
        }
        .section-title p {
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto;
        }

        /* ===== Intro Block ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .intro-grid .intro-text h3 {
            font-size: 1.8rem;
            margin-bottom: 1rem;
            color: var(--primary);
        }
        .intro-grid .intro-text p {
            font-size: 1.05rem;
            margin-bottom: 1.2rem;
        }
        .intro-grid .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .intro-grid .intro-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            transition: transform 0.5s ease;
        }
        .intro-grid .intro-image:hover img {
            transform: scale(1.03);
        }
        .intro-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 1.25rem;
        }
        .intro-tags .tag {
            background: var(--bg-alt);
            color: var(--primary);
            padding: 0.35rem 1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid var(--border);
        }

        /* ===== Cards Grid ===== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.75rem;
        }
        .card-item {
            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-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .card-item .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }
        .card-item:hover .card-img {
            transform: scale(1.05);
        }
        .card-item .card-body {
            padding: 1.5rem;
        }
        .card-item .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        .card-item .card-body p {
            font-size: 0.92rem;
            margin-bottom: 1rem;
            color: var(--text-weak);
        }
        .card-item .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.82rem;
            color: var(--text-weak);
        }
        .card-item .card-body .card-meta i {
            color: var(--accent);
        }
        .card-item .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 0.5rem;
        }
        .card-item .card-body .card-link:hover {
            gap: 0.7rem;
        }
        .card-item .card-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.9rem;
            border-radius: 50px;
            margin-bottom: 0.6rem;
            letter-spacing: 0.04em;
        }

        /* ===== Stats / Data Block ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }
        .stat-item {
            background: var(--bg-card);
            padding: 2rem 1rem;
            border-radius: var(--radius-md);
            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(--accent);
            line-height: 1.2;
        }
        .stat-item .stat-number span {
            font-size: 1.2rem;
            font-weight: 600;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: var(--text-weak);
            margin-top: 0.4rem;
        }
        .stat-item .stat-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 0.75rem;
            opacity: 0.6;
        }

        /* ===== Process / Steps ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
            counter-reset: step;
        }
        .process-step {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            position: relative;
            transition: all var(--transition);
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .process-step::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3);
        }
        .process-step .step-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 1rem;
            margin-top: 0.4rem;
        }
        .process-step h4 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }
        .process-step p {
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            color: var(--text-main);
            transition: background var(--transition);
            gap: 1rem;
        }
        .faq-item .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-item .faq-question i {
            color: var(--accent);
            transition: transform 0.3s ease;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
            color: var(--text-weak);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.25rem;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 3.5rem 3rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }
        .cta-block .container {
            position: relative;
            z-index: 1;
        }
        .cta-block h3 {
            font-size: 2rem;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 540px;
            margin: 0 auto 1.5rem;
            font-size: 1.05rem;
        }
        .cta-block .btn {
            font-size: 1.05rem;
            padding: 0.9rem 2.5rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 3.5rem 0 0;
            margin-top: auto;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-brand .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.02em;
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 0.75rem;
            max-width: 300px;
        }
        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }
        .site-footer .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.88rem;
            padding: 0.3rem 0;
            transition: color var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            padding: 1.5rem 0;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.3);
        }
        .site-footer .footer-bottom p {
            margin: 0;
            color: rgba(255, 255, 255, 0.3);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 200px;
                --spacing-section: 3.5rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .page-hero h1 {
                font-size: 2.5rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .intro-grid .intro-image img {
                height: 280px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.open {
                display: block;
            }
            .sidebar-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .main-content {
                margin-left: 0;
            }
            .page-hero {
                padding: 4rem 1.25rem 3rem;
                min-height: 260px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            :root {
                --spacing-section: 2.5rem;
            }
            .section-title h2 {
                font-size: 1.6rem;
            }
            .cards-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
                gap: 1.25rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.25rem;
            }
            .cta-block {
                padding: 2.5rem 1.5rem;
            }
            .cta-block h3 {
                font-size: 1.5rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .site-footer .footer-brand p {
                max-width: 100%;
            }
            .intro-grid .intro-image img {
                height: 220px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .page-hero .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .stat-item {
                padding: 1.25rem 0.75rem;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .section-title h2 {
                font-size: 1.4rem;
            }
            .faq-item .faq-question {
                font-size: 0.92rem;
                padding: 1rem 1.25rem;
            }
            .faq-item .faq-answer {
                font-size: 0.88rem;
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
            .sidebar-toggle {
                top: 0.75rem;
                left: 0.75rem;
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
        }