/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1e3a5f;
            --primary-light: #2a5298;
            --primary-dark: #0f2340;
            --accent: #e85d04;
            --accent-light: #f48c1f;
            --accent-dark: #c24100;
            --bg: #f5f7fa;
            --bg-alt: #eef1f6;
            --bg-dark: #1a1a2e;
            --surface: #ffffff;
            --surface-hover: #f0f4ff;
            --text: #1a1a2e;
            --text-secondary: #4a5568;
            --text-muted: #8899aa;
            --text-light: #ffffff;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.10);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

        /* ===== 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: 1.6;
            color: var(--text);
            background: var(--bg);
        }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--primary-dark); }
        h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
        h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
        h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
        p { color: var(--text-secondary); margin-bottom: 1rem; }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow { max-width: 860px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            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(232, 93, 4, 0.35);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-light {
            background: rgba(255,255,255,0.15);
            color: #fff;
            border-color: rgba(255,255,255,0.4);
        }
        .btn-light:hover {
            background: rgba(255,255,255,0.25);
            border-color: #fff;
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; }
        .btn-lg { padding: 16px 36px; font-size: 1.05rem; }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .badge-accent { background: rgba(232, 93, 4, 0.12); color: var(--accent); }
        .badge-primary { background: rgba(30, 58, 95, 0.10); color: var(--primary); }
        .badge-green { background: rgba(16, 185, 129, 0.12); color: #0f9d6e; }
        .badge-red { background: rgba(239, 68, 68, 0.12); color: #dc2626; }

        /* ===== Card ===== */
        .card {
            background: var(--surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
        .card-body { padding: 20px 24px 24px; }
        .card-title { font-size: 1.1rem; margin-bottom: 8px; color: var(--primary-dark); }
        .card-text { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 12px; }
        .card-footer { padding: 12px 24px; border-top: 1px solid var(--border-light); display: flex; align-items: center; justify-content: space-between; font-size: 0.85rem; color: var(--text-muted); }

        /* ===== Section ===== */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-dark { background: var(--bg-dark); color: var(--text-light); }
        .section-dark h2, .section-dark h3 { color: #fff; }
        .section-dark p { color: rgba(255,255,255,0.75); }
        .section-header { text-align: center; margin-bottom: 48px; }
        .section-header p { max-width: 600px; margin: 12px auto 0; }
        .section-title { position: relative; display: inline-block; }
        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 12px auto 0;
        }

        /* ===== Grid ===== */
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-between { display: flex; align-items: center; justify-content: space-between; }
        .gap-12 { gap: 12px; }
        .gap-16 { gap: 16px; }
        .gap-24 { gap: 24px; }
        .gap-32 { gap: 32px; }
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mt-48 { margin-top: 48px; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: all var(--transition);
        }
        .site-header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.08); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
        }
        .logo span { color: var(--accent); }
        .nav-list { display: flex; align-items: center; gap: 8px; }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .nav-list a:hover { color: var(--primary); background: rgba(30,58,95,0.06); }
        .nav-list a.active { color: var(--primary); background: rgba(30,58,95,0.10); font-weight: 600; }
        .nav-cta { background: var(--accent) !important; color: #fff !important; padding: 8px 22px !important; }
        .nav-cta:hover { background: var(--accent-dark) !important; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(232,93,4,0.3); }
        .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
        .hamburger span { display: block; width: 26px; height: 2.5px; background: var(--primary); border-radius: 4px; transition: all var(--transition); }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* ===== Hero ===== */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 70vh;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 80px;
            background: var(--bg);
            clip-path: ellipse(70% 100% at 50% 100%);
        }
        .hero-content { position: relative; z-index: 2; max-width: 720px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.10);
            backdrop-filter: blur(4px);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.9);
            margin-bottom: 24px;
            border: 1px solid rgba(255,255,255,0.12);
        }
        .hero h1 { color: #fff; font-size: clamp(2.2rem, 5.5vw, 3.6rem); margin-bottom: 16px; letter-spacing: -0.5px; }
        .hero h1 span { color: var(--accent); }
        .hero p { font-size: 1.1rem; color: rgba(255,255,255,0.7); max-width: 560px; margin-bottom: 32px; line-height: 1.7; }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-stats { display: flex; gap: 40px; margin-top: 48px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.10); }
        .hero-stat h4 { color: #fff; font-size: 1.8rem; font-weight: 800; }
        .hero-stat p { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin: 0; }

        /* ===== Features ===== */
        .features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px; }
        .feature-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 32px 28px;
            text-align: center;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: #fff;
        }
        .feature-icon.blue { background: linear-gradient(135deg, #1e3a5f, #2a5298); }
        .feature-icon.orange { background: linear-gradient(135deg, #e85d04, #f48c1f); }
        .feature-icon.green { background: linear-gradient(135deg, #0f9d6e, #34d399); }
        .feature-icon.purple { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
        .feature-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .feature-card p { font-size: 0.9rem; margin: 0; }

        /* ===== Category Cards (分类入口) ===== */
        .category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 28px; }
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 260px;
            display: flex;
            align-items: flex-end;
            transition: all var(--transition);
            cursor: pointer;
        }
        .category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s; }
        .category-card:hover img { transform: scale(1.06); }
        .category-card-overlay {
            position: relative;
            width: 100%;
            padding: 32px 24px 24px;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
            color: #fff;
            z-index: 2;
        }
        .category-card-overlay h3 { color: #fff; font-size: 1.3rem; margin-bottom: 4px; }
        .category-card-overlay p { color: rgba(255,255,255,0.7); font-size: 0.85rem; margin: 0; }
        .category-card .badge { position: absolute; top: 16px; right: 16px; z-index: 3; background: rgba(0,0,0,0.5); color: #fff; backdrop-filter: blur(4px); }

        /* ===== Latest Posts (CMS) ===== */
        .post-list { display: flex; flex-direction: column; gap: 16px; }
        .post-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--surface);
            padding: 20px 24px;
            border-radius: var(--radius);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .post-item:hover { box-shadow: var(--shadow); transform: translateX(4px); border-color: var(--accent); }
        .post-item .post-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(30,58,95,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 1rem;
        }
        .post-item .post-info { flex: 1; }
        .post-item .post-info h4 { font-size: 1rem; margin-bottom: 4px; }
        .post-item .post-info h4 a { color: var(--primary-dark); }
        .post-item .post-info h4 a:hover { color: var(--accent); }
        .post-item .post-meta { font-size: 0.8rem; color: var(--text-muted); display: flex; gap: 16px; flex-wrap: wrap; }
        .post-item .post-meta span { display: flex; align-items: center; gap: 4px; }
        .post-empty {
            text-align: center;
            padding: 48px 24px;
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            color: var(--text-muted);
        }
        .post-empty i { font-size: 2rem; margin-bottom: 12px; }

        /* ===== Stats / Data ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .stat-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 32px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
        .stat-card .stat-number { font-size: 2.4rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
        .stat-card .stat-number span { color: var(--accent); }
        .stat-card .stat-label { font-size: 0.9rem; color: var(--text-muted); margin-top: 4px; }

        /* ===== Steps / Flow ===== */
        .steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; position: relative; }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(to right, var(--accent), var(--primary-light), var(--accent));
            opacity: 0.3;
        }
        .step-card { text-align: center; position: relative; }
        .step-number {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--surface);
            border: 3px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent);
            position: relative;
            z-index: 2;
            transition: all var(--transition);
        }
        .step-card:hover .step-number { background: var(--accent); color: #fff; transform: scale(1.1); box-shadow: 0 8px 24px rgba(232,93,4,0.3); }
        .step-card h3 { font-size: 1.1rem; margin-bottom: 6px; }
        .step-card p { font-size: 0.9rem; margin: 0; max-width: 280px; margin-inline: auto; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            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: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary-dark);
            cursor: pointer;
            transition: background var(--transition);
        }
        .faq-question:hover { background: var(--surface-hover); }
        .faq-question i { color: var(--accent); transition: transform var(--transition); font-size: 0.85rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.4s ease;
        }
        .faq-item.active .faq-answer { max-height: 300px; padding: 0 24px 20px; }
        .faq-answer p { font-size: 0.9rem; color: var(--text-secondary); margin: 0; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section h2 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 12px; position: relative; }
        .cta-section p { color: rgba(255,255,255,0.7); max-width: 500px; margin: 0 auto 28px; position: relative; }
        .cta-section .btn { position: relative; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); max-width: 320px; }
        .footer-social { display: flex; gap: 12px; margin-top: 20px; }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.6);
            transition: all var(--transition);
        }
        .footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-3px); }
        .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { font-size: 0.9rem; color: rgba(255,255,255,0.5); transition: color var(--transition); }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-bottom {
            margin-top: 48px;
            padding: 20px 0;
            border-top: 1px solid rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.45); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 16px rgba(232,93,4,0.35);
            z-index: 999;
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: all var(--transition);
        }
        .back-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
        .back-top:hover { background: var(--accent-dark); transform: translateY(-4px); box-shadow: 0 8px 24px rgba(232,93,4,0.4); color: #fff; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .hamburger { display: flex; }
            .nav-list {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                box-shadow: 0 20px 40px rgba(0,0,0,0.08);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s ease;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-list.open { transform: translateY(0); opacity: 1; }
            .nav-list a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
            .hero { padding: 120px 0 60px; min-height: auto; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stat h4 { font-size: 1.4rem; }
            .grid-2, .grid-3 { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .steps-grid::before { display: none; }
            .cta-section { padding: 40px 24px; border-radius: var(--radius); }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .post-item { flex-direction: column; gap: 12px; }
            .stats-grid { gap: 16px; }
            .stat-card .stat-number { font-size: 1.8rem; }
        }
        @media (max-width: 520px) {
            :root { --nav-height: 60px; }
            .container { padding: 0 16px; }
            .section { padding: 48px 0; }
            .section-header { margin-bottom: 28px; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .grid-4 { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .category-grid { grid-template-columns: 1fr; }
            .features-grid { grid-template-columns: 1fr; }
            .back-top { bottom: 20px; right: 20px; width: 40px; height: 40px; font-size: 1rem; }
        }

        /* ===== Utility ===== */
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
        .fade-in { animation: fadeIn 0.8s ease forwards; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #dc2626;
            --primary-dark: #b91c1c;
            --primary-light: #fef2f2;
            --primary-gradient: linear-gradient(135deg, #dc2626 0%, #ef4444 50%, #f87171 100%);
            --secondary: #1e40af;
            --secondary-light: #eff6ff;
            --accent: #f59e0b;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --bg-card: #ffffff;
            --text: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-xl: 0 24px 60px rgba(0,0,0,0.14);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-width: 1200px;
            --header-height: 72px;
            --transition: all 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-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        button { font-family: inherit; cursor: pointer; border: none; background: none; transition: var(--transition); }
        input, textarea, select { font-family: inherit; font-size: 1rem; outline: none; transition: var(--transition); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text); }
        p { margin-bottom: 1em; color: var(--text-secondary); }
        p:last-child { margin-bottom: 0; }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary-gradient);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            box-shadow: 0 4px 12px rgba(220,38,38,0.3);
        }
        .logo span { color: var(--text); font-weight: 600; }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover { color: var(--primary); background: var(--primary-light); }
        .nav-list a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-list a.nav-cta {
            background: var(--primary-gradient);
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(220,38,38,0.3);
            margin-left: 8px;
        }
        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(220,38,38,0.4);
            background: linear-gradient(135deg, #b91c1c 0%, #dc2626 50%, #ef4444 100%);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text);
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

        /* ===== Mobile Nav ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px 24px;
            box-shadow: var(--shadow-lg);
            z-index: 999;
            transform: translateY(-12px);
            opacity: 0;
            transition: var(--transition);
            pointer-events: none;
        }
        .mobile-menu.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .mobile-menu a:hover, .mobile-menu a.active { background: var(--primary-light); color: var(--primary); }
        .mobile-menu a.nav-cta {
            background: var(--primary-gradient);
            color: #fff;
            justify-content: center;
            margin-top: 12px;
            padding: 14px;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }

        /* ===== Article Banner ===== */
        .article-banner {
            margin-top: var(--header-height);
            padding: 60px 0 40px;
            background: var(--bg-alt);
            position: relative;
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .article-banner .container { position: relative; z-index: 1; }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .article-breadcrumb a { color: var(--text-muted); }
        .article-breadcrumb a:hover { color: var(--primary); }
        .article-breadcrumb .sep { color: var(--text-muted); font-size: 0.7rem; }
        .article-breadcrumb .current { color: var(--text-secondary); font-weight: 500; }
        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text);
            max-width: 860px;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .article-meta .meta-item i { color: var(--primary); font-size: 0.85rem; }
        .article-meta .category-tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ===== Article Content ===== */
        .article-main {
            padding: 48px 0 64px;
            background: var(--bg);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-secondary);
        }
        .article-body .content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text);
            margin: 32px 0 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-light);
        }
        .article-body .content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text);
            margin: 28px 0 12px;
        }
        .article-body .content p {
            margin-bottom: 1.2em;
        }
        .article-body .content ul, .article-body .content ol {
            margin: 16px 0;
            padding-left: 24px;
        }
        .article-body .content ul { list-style: disc; }
        .article-body .content ol { list-style: decimal; }
        .article-body .content li { margin-bottom: 8px; color: var(--text-secondary); }
        .article-body .content img {
            border-radius: var(--radius-sm);
            margin: 24px auto;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body .content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body .content a:hover { color: var(--primary-dark); }
        .article-body .content .wp-block-image, .article-body .content .aligncenter {
            text-align: center;
        }
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found i { font-size: 3rem; color: var(--text-muted); margin-bottom: 20px; }
        .article-not-found h2 { font-size: 1.6rem; margin-bottom: 12px; }
        .article-not-found p { color: var(--text-muted); margin-bottom: 24px; }
        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--primary-gradient);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(220,38,38,0.3);
        }
        .article-not-found .btn-back:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(220,38,38,0.4); }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-related {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-related a {
            display: flex;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .sidebar-related a:last-child { border-bottom: none; }
        .sidebar-related a:hover { padding-left: 6px; }
        .sidebar-related .related-img {
            width: 72px;
            height: 54px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-alt);
        }
        .sidebar-related .related-info { flex: 1; min-width: 0; }
        .sidebar-related .related-title {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-related .related-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            display: inline-block;
            padding: 6px 14px;
            background: var(--bg-alt);
            color: var(--text-secondary);
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .sidebar-tags a:hover { background: var(--primary-light); color: var(--primary); border-color: var(--primary); }
        .sidebar-cta {
            background: var(--primary-gradient);
            color: #fff;
            border: none;
            padding: 20px 24px;
        }
        .sidebar-cta h3 { color: #fff; border-bottom-color: rgba(255,255,255,0.2); }
        .sidebar-cta h3 i { color: #fff; }
        .sidebar-cta p { color: rgba(255,255,255,0.85); font-size: 0.92rem; margin-bottom: 16px; }
        .sidebar-cta .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: #fff;
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
        }
        .sidebar-cta .btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

        /* ===== CTA Section ===== */
        .article-cta {
            padding: 48px 0;
            background: var(--bg-alt);
        }
        .cta-box {
            background: var(--primary-gradient);
            border-radius: var(--radius-lg);
            padding: 48px 56px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.06;
            z-index: 0;
        }
        .cta-box > * { position: relative; z-index: 1; }
        .cta-box h2 { font-size: 1.8rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
        .cta-box p { font-size: 1.05rem; color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto 24px; }
        .cta-box .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: #fff;
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 4px 16px rgba(0,0,0,0.15);
        }
        .cta-box .btn-white:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,0.25); }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: #fff; font-size: 1.4rem; margin-bottom: 16px; }
        .footer-brand .logo span { color: rgba(255,255,255,0.6); }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.55); line-height: 1.7; margin-bottom: 20px; max-width: 360px; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul { display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul a {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
        }
        .footer-col ul a:hover { color: var(--primary); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            background: var(--primary-gradient);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 16px rgba(220,38,38,0.35);
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: var(--transition);
            z-index: 100;
        }
        .back-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
        .back-top:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(220,38,38,0.45); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
            .sidebar-cta { grid-column: 1 / -1; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 768px) {
            .nav-list a:not(.nav-cta) { display: none; }
            .nav-toggle { display: flex; }
            .mobile-menu { display: block; }
            .article-banner { padding: 40px 0 28px; }
            .article-banner h1 { font-size: 1.6rem; }
            .article-body { padding: 24px; }
            .article-body .content { font-size: 1rem; }
            .article-body .content h2 { font-size: 1.3rem; }
            .article-meta { gap: 12px 16px; }
            .article-sidebar { grid-template-columns: 1fr; }
            .cta-box { padding: 32px 24px; }
            .cta-box h2 { font-size: 1.3rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .back-top { bottom: 20px; right: 20px; width: 42px; height: 42px; font-size: 1rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .header-inner { padding: 0 16px; }
            .logo { font-size: 1.2rem; }
            .logo-icon { width: 34px; height: 34px; font-size: 0.9rem; }
            .article-banner h1 { font-size: 1.3rem; }
            .article-body { padding: 16px; }
            .article-body .content { font-size: 0.95rem; }
            .article-body .content h2 { font-size: 1.15rem; }
            .article-meta { flex-direction: column; align-items: flex-start; gap: 8px; }
            .cta-box h2 { font-size: 1.1rem; }
            .cta-box .btn-white { width: 100%; justify-content: center; }
            .sidebar-related a { flex-direction: row; }
            .sidebar-related .related-img { width: 60px; height: 45px; }
        }
        @media (min-width: 769px) {
            .mobile-menu { display: none !important; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff4d5a;
            --secondary: #1d3557;
            --secondary-light: #264573;
            --accent: #f4a261;
            --accent-light: #f9c78a;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --text-dark: #1a1a2e;
            --text-body: #333333;
            --text-muted: #6c757d;
            --text-light: #ffffff;
            --border-color: #e9ecef;
            --border-light: #f0f0f0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            padding-top: var(--header-height);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }

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

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
        }

        .logo .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 18px;
        }

        .logo span {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
        }

        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }

        .nav-list a:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.05);
        }

        .nav-list a:hover::after {
            width: 50%;
        }

        .nav-list a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-list a.active::after {
            width: 60%;
        }

        .nav-list a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }

        .nav-list a.nav-cta::after {
            display: none;
        }

        .nav-list a.nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.4);
            color: #fff;
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-dark);
            border-radius: 4px;
            transition: var(--transition);
        }

        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 50%, var(--bg-dark) 100%);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 26, 46, 0.55);
            z-index: 1;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-banner h1 {
            font-size: 48px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 16px;
            letter-spacing: -1px;
            line-height: 1.2;
        }

        .page-banner .banner-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .page-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .page-banner .banner-tags span {
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 50px;
            color: #fff;
            font-size: 14px;
            font-weight: 500;
        }

        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-bottom: 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-header .section-desc {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .section-header .section-line {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 20px auto 0;
        }

        /* ===== Category Grid ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

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

        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .cat-card .cat-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .cat-card .cat-img .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.6));
        }

        .cat-card .cat-img .cat-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 4px 14px;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: 50px;
        }

        .cat-card .cat-body {
            padding: 24px 22px 26px;
        }

        .cat-card .cat-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .cat-card .cat-body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .cat-card .cat-body .cat-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .cat-card .cat-body .cat-meta i {
            margin-right: 4px;
            color: var(--primary);
        }

        .cat-card .cat-body .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            color: var(--primary);
            font-size: 15px;
        }

        .cat-card .cat-body .cat-link i {
            transition: var(--transition);
        }

        .cat-card .cat-body .cat-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Featured Events ===== */
        .featured-events {
            background: var(--bg-white);
        }

        .events-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .event-card {
            display: flex;
            gap: 20px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            align-items: flex-start;
        }

        .event-card:hover {
            background: var(--bg-white);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .event-card .event-date {
            flex-shrink: 0;
            width: 68px;
            height: 68px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            line-height: 1.2;
        }

        .event-card .event-date .day {
            font-size: 26px;
        }
        .event-card .event-date .month {
            font-size: 13px;
            font-weight: 500;
            opacity: 0.9;
        }

        .event-card .event-info {
            flex: 1;
        }

        .event-card .event-info h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .event-card .event-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .event-card .event-info .event-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .event-card .event-info .event-tags span {
            padding: 3px 12px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
        }

        /* ===== Guide Steps ===== */
        .guide-section {
            background: var(--bg-light);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .step-card {
            text-align: center;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 36px 24px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }

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

        .step-card .step-num {
            width: 52px;
            height: 52px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
            margin: 0 auto 18px;
            box-shadow: 0 6px 16px rgba(230, 57, 70, 0.25);
        }

        .step-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Resources ===== */
        .resources-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .resource-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

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

        .resource-card .res-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            background: rgba(230, 57, 70, 0.08);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
        }

        .resource-card .res-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .resource-card .res-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg-light);
            transition: var(--transition);
        }

        .faq-item .faq-q:hover {
            background: rgba(230, 57, 70, 0.04);
        }

        .faq-item .faq-q i {
            transition: var(--transition);
            color: var(--text-muted);
        }

        .faq-item.active .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item .faq-a {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            background: var(--bg-white);
        }

        .faq-item.active .faq-a {
            padding: 18px 24px 22px;
            max-height: 400px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-section .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(230, 57, 70, 0.4);
            color: #fff;
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer .footer-brand .logo .logo-icon {
            background: var(--primary);
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            color: rgba(255, 255, 255, 0.6);
            font-size: 16px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-col h4 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resources-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }

            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 3px solid var(--primary);
                pointer-events: none;
            }

            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-list a {
                width: 100%;
                padding: 14px 18px;
                font-size: 16px;
                border-radius: var(--radius-sm);
            }

            .nav-list a::after {
                display: none;
            }

            .nav-list a.nav-cta {
                margin-top: 8px;
                text-align: center;
            }

            .page-banner {
                padding: 80px 0 60px;
                min-height: 280px;
            }

            .page-banner h1 {
                font-size: 32px;
            }
            .page-banner .banner-sub {
                font-size: 16px;
            }

            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }

            .category-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .events-list {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .resources-grid {
                grid-template-columns: 1fr;
            }

            .event-card {
                flex-direction: column;
            }
            .event-card .event-date {
                width: 56px;
                height: 56px;
            }
            .event-card .event-date .day {
                font-size: 20px;
            }

            .cta-section h2 {
                font-size: 28px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner .banner-sub {
                font-size: 14px;
            }
            .page-banner .banner-tags span {
                font-size: 12px;
                padding: 4px 14px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .step-card {
                padding: 24px 18px;
            }
            .cat-card .cat-body {
                padding: 18px 16px 20px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--text-muted);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        /* ===== Fade In Animation ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(24px);
            animation: fadeUp 0.6s ease forwards;
        }

        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in:nth-child(2) {
            animation-delay: 0.1s;
        }
        .fade-in:nth-child(3) {
            animation-delay: 0.2s;
        }
        .fade-in:nth-child(4) {
            animation-delay: 0.3s;
        }
        .fade-in:nth-child(5) {
            animation-delay: 0.4s;
        }
        .fade-in:nth-child(6) {
            animation-delay: 0.5s;
        }