/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #0f3a8e;
            --primary-light: #3b82f6;
            --secondary: #7c3aed;
            --secondary-light: #a78bfa;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg-body: #f0f4ff;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-section: #f8faff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-light: #94a3b8;
            --text-white: #ffffff;
            --border-color: #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 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
            --spacing-xs: 0.25rem;
            --spacing-sm: 0.5rem;
            --spacing-md: 1rem;
            --spacing-lg: 2rem;
            --spacing-xl: 4rem;
            --spacing-2xl: 6rem;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-light); }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        @media (max-width: 768px) {
            .container { padding: 0 var(--spacing-md); }
        }

        /* ===== Header & Nav ===== */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(12px);
            background: rgba(255,255,255,0.92);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: var(--spacing-md);
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.3px;
        }
        .logo i { color: var(--secondary); font-size: 1.5rem; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { opacity: 0.85; }

        /* Search */
        .search-wrap {
            flex: 1;
            max-width: 480px;
            position: relative;
        }
        .search-wrap form { display: flex; align-items: center; }
        .search-wrap input {
            width: 100%;
            padding: 10px 44px 10px 18px;
            border: 1.5px solid var(--border-color);
            border-radius: 50px;
            background: var(--bg-body);
            font-size: 0.9rem;
            color: var(--text-primary);
            transition: border-color var(--transition), box-shadow var(--transition);
            outline: none;
        }
        .search-wrap input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(26,86,219,0.12);
        }
        .search-wrap input::placeholder { color: var(--text-light); }
        .search-wrap button {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition), transform var(--transition);
        }
        .search-wrap button:hover { background: var(--primary-dark); transform: translateY(-50%) scale(1.05); }
        .search-wrap button i { font-size: 0.95rem; }

        /* Nav Links */
        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .nav-links a:hover { background: var(--bg-body); color: var(--primary); }
        .nav-links a.active { background: var(--primary); color: var(--text-white); }
        .nav-links a.active:hover { background: var(--primary-dark); }

        /* Mobile Toggle */
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 6px;
            border-radius: 8px;
            background: transparent;
            transition: background var(--transition);
        }
        .mobile-toggle:hover { background: var(--bg-body); }

        /* Mobile Nav */
        .mobile-nav {
            display: none;
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: var(--spacing-md) var(--spacing-lg);
            box-shadow: var(--shadow-md);
        }
        .mobile-nav.open { display: block; }
        .mobile-nav a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition);
        }
        .mobile-nav a:hover { background: var(--bg-body); color: var(--primary); }
        .mobile-nav a.active { background: var(--primary); color: var(--text-white); }
        .mobile-nav a + a { margin-top: 4px; }

        @media (max-width: 768px) {
            .header-inner { height: 64px; }
            .nav-links { display: none; }
            .mobile-toggle { display: block; }
            .search-wrap { max-width: 100%; flex: 0 0 180px; }
            .search-wrap input { padding: 8px 38px 8px 14px; font-size: 0.85rem; }
            .search-wrap button { width: 32px; height: 32px; right: 3px; }
            .search-wrap button i { font-size: 0.8rem; }
        }
        @media (max-width: 520px) {
            .search-wrap { flex: 0 0 120px; }
            .logo { font-size: 1.1rem; }
            .logo i { font-size: 1.2rem; }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, rgba(15,23,42,0.85), rgba(30,27,75,0.75)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: var(--text-white);
            padding: var(--spacing-2xl) var(--spacing-lg);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(124,58,237,0.25) 0%, transparent 60%),
                        radial-gradient(ellipse at 80% 50%, rgba(26,86,219,0.2) 0%, transparent 60%);
            pointer-events: none;
        }
        .hero-content { position: relative; z-index: 1; max-width: 820px; }
        .hero h1 {
            font-size: clamp(2.2rem, 6vw, 4rem);
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.15;
            margin-bottom: var(--spacing-md);
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .hero h1 span { background: linear-gradient(135deg, var(--accent), #f97316); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero p {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: rgba(255,255,255,0.85);
            max-width: 640px;
            margin: 0 auto var(--spacing-lg);
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: none;
            line-height: 1.2;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--text-white);
            box-shadow: 0 4px 16px rgba(26,86,219,0.35);
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(26,86,219,0.45); color: #fff; }
        .btn-secondary {
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(8px);
            color: var(--text-white);
            border: 1.5px solid rgba(255,255,255,0.25);
        }
        .btn-secondary:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); color: #fff; }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            box-shadow: 0 4px 16px rgba(245,158,11,0.35);
        }
        .btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(245,158,11,0.45); color: #fff; }
        .btn-sm { padding: 10px 20px; font-size: 0.9rem; }

        @media (max-width: 768px) {
            .hero { min-height: 420px; padding: var(--spacing-xl) var(--spacing-md); }
            .hero-actions { flex-direction: column; align-items: center; }
            .btn { width: 100%; max-width: 280px; justify-content: center; }
        }

        /* ===== Section General ===== */
        .section { padding: var(--spacing-2xl) 0; }
        .section-alt { background: var(--bg-section); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-title {
            font-size: clamp(1.6rem, 4vw, 2.4rem);
            font-weight: 800;
            text-align: center;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.3px;
        }
        .section-sub {
            text-align: center;
            color: var(--text-secondary);
            max-width: 620px;
            margin: 0 auto var(--spacing-xl);
            font-size: 1.05rem;
            line-height: 1.7;
        }
        .section-dark .section-sub { color: rgba(255,255,255,0.65); }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-md);
            font-size: 1.6rem;
            color: #fff;
        }
        .feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
        .feature-card p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.6; }

        @media (max-width: 992px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .features-grid { grid-template-columns: 1fr; }
        }

        /* ===== Categories ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: pointer;
            display: block;
            color: inherit;
        }
        .category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); color: inherit; }
        .category-card img { width: 100%; height: 200px; object-fit: cover; transition: transform 0.4s ease; }
        .category-card:hover img { transform: scale(1.04); }
        .category-info {
            padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
            text-align: center;
        }
        .category-info h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 6px; }
        .category-info p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 12px; }
        .category-tag {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
        }

        @media (max-width: 768px) {
            .categories-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .categories-grid { grid-template-columns: 1fr; }
            .category-card img { height: 160px; }
        }

        /* ===== Latest CMS List ===== */
        .cms-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }
        .cms-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .cms-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
        .cms-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .cms-card:hover .cms-card-img { transform: scale(1.03); }
        .cms-card-body { padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg); flex: 1; display: flex; flex-direction: column; }
        .cms-card-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 8px;
        }
        .cms-card-meta .badge {
            background: var(--bg-body);
            padding: 2px 12px;
            border-radius: 50px;
            font-weight: 500;
            color: var(--primary);
            font-size: 0.75rem;
        }
        .cms-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
        .cms-card h3 a { color: var(--text-primary); }
        .cms-card h3 a:hover { color: var(--primary); }
        .cms-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; flex: 1; }
        .cms-card .cms-card-foot {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .cms-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: var(--spacing-xl);
            color: var(--text-secondary);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }
        .cms-empty i { font-size: 2.4rem; color: var(--text-light); margin-bottom: var(--spacing-md); display: block; }

        @media (max-width: 768px) {
            .cms-list-grid { grid-template-columns: 1fr; }
            .cms-card-img { height: 160px; }
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            text-align: center;
        }
        .stat-item {
            background: rgba(255,255,255,0.06);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg) var(--spacing-md);
            border: 1px solid rgba(255,255,255,0.1);
            transition: all var(--transition);
        }
        .stat-item:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }
        .stat-number {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent), #f97316);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-label { font-size: 0.95rem; color: rgba(255,255,255,0.7); margin-top: 4px; }

        @media (max-width: 768px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .stats-grid { grid-template-columns: 1fr; }
        }

        /* ===== Recommended ===== */
        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .rec-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .rec-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
        .rec-card img { width: 100%; height: 160px; object-fit: cover; }
        .rec-card-body { padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg); }
        .rec-card-body h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
        .rec-card-body p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 12px; }
        .rec-tags { display: flex; flex-wrap: wrap; gap: 6px; }
        .rec-tags span {
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--bg-body);
            color: var(--text-secondary);
        }

        @media (max-width: 768px) {
            .recommend-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .recommend-grid { grid-template-columns: 1fr; }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-sm); }
        .faq-question {
            padding: var(--spacing-md) var(--spacing-lg);
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            gap: var(--spacing-md);
            color: var(--text-primary);
            background: transparent;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover { background: var(--bg-body); }
        .faq-question i { color: var(--primary); font-size: 1.1rem; transition: transform var(--transition); flex-shrink: 0; }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 var(--spacing-lg) var(--spacing-md);
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            text-align: center;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            padding: var(--spacing-2xl) var(--spacing-lg);
            border-radius: var(--radius-lg);
            margin: var(--spacing-2xl) 0;
            color: var(--text-white);
        }
        .cta-section h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; color: #fff; margin-bottom: var(--spacing-sm); }
        .cta-section p { color: rgba(255,255,255,0.85); max-width: 560px; margin: 0 auto var(--spacing-lg); font-size: 1.05rem; }
        .cta-section .btn { background: #fff; color: var(--primary); box-shadow: 0 4px 16px rgba(0,0,0,0.15); }
        .cta-section .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,0.2); color: var(--primary-dark); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }
        .footer-brand .logo { color: #fff; margin-bottom: var(--spacing-md); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: var(--spacing-md); }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: var(--spacing-lg);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            font-size: 0.85rem;
            color: rgba(255,255,255,0.45);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }

        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-lg { margin-top: var(--spacing-lg); }
        .mb-lg { margin-bottom: var(--spacing-lg); }
        .gap-sm { gap: var(--spacing-sm); }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(24px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-in { animation: fadeInUp 0.5s ease forwards; }

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

        /* ===== Selection ===== */
        ::selection { background: var(--primary); color: #fff; }

/* roulang page: article */
/* ===== Design Variables ===== */
    :root {
        --primary: #e63946;
        --primary-dark: #c1121f;
        --primary-light: #ff6b6b;
        --secondary: #1d3557;
        --secondary-light: #457b9d;
        --accent: #f4a261;
        --bg: #f8f9fa;
        --bg-alt: #ffffff;
        --bg-dark: #1d3557;
        --text: #212529;
        --text-light: #6c757d;
        --text-white: #ffffff;
        --border: #dee2e6;
        --radius: 12px;
        --radius-sm: 8px;
        --radius-lg: 20px;
        --shadow: 0 4px 20px rgba(0,0,0,0.08);
        --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
        --shadow-hover: 0 8px 30px rgba(0,0,0,0.15);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
        --max-width: 1200px;
        --nav-height: 72px;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
        font-family: var(--font);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text);
        background: var(--bg);
        -webkit-font-smoothing: antialiased;
    }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-dark); }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    button, input, textarea { font-family: inherit; font-size: 1rem; outline: none; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--secondary); }
    .container {
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ===== Header & Navigation ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(255,255,255,0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(0,0,0,0.06);
        box-shadow: 0 2px 20px rgba(0,0,0,0.04);
        height: var(--nav-height);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: var(--nav-height);
        gap: 16px;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--primary);
        font-size: 1.35rem;
        font-weight: 800;
        letter-spacing: -0.5px;
        white-space: nowrap;
        transition: var(--transition);
    }
    .logo i { font-size: 1.5rem; color: var(--primary); }
    .logo:hover { color: var(--primary-dark); transform: scale(1.02); }
    .logo span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

    /* Search */
    .search-wrap {
        flex: 1;
        max-width: 520px;
        margin: 0 16px;
    }
    .search-wrap form {
        display: flex;
        background: var(--bg);
        border: 2px solid var(--border);
        border-radius: 50px;
        overflow: hidden;
        transition: var(--transition);
    }
    .search-wrap form:focus-within { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(230,57,70,0.12); }
    .search-wrap input {
        flex: 1;
        padding: 10px 18px;
        border: none;
        background: transparent;
        font-size: 0.95rem;
        color: var(--text);
        min-width: 0;
    }
    .search-wrap input::placeholder { color: var(--text-light); }
    .search-wrap button {
        padding: 10px 20px;
        background: transparent;
        border: none;
        color: var(--text-light);
        cursor: pointer;
        font-size: 1.1rem;
        transition: var(--transition);
    }
    .search-wrap button:hover { color: var(--primary); }

    /* Nav Links */
    .nav-links { display: flex; align-items: center; gap: 4px; }
    .nav-links a {
        padding: 8px 18px;
        border-radius: 50px;
        color: var(--text);
        font-weight: 500;
        font-size: 0.95rem;
        transition: var(--transition);
        white-space: nowrap;
        position: relative;
    }
    .nav-links a:hover { background: rgba(230,57,70,0.08); color: var(--primary); }
    .nav-links a.active { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(230,57,70,0.3); }
    .nav-links a.active:hover { background: var(--primary-dark); }

    .mobile-toggle { display: none; background: none; border: none; font-size: 1.6rem; color: var(--secondary); cursor: pointer; padding: 8px; border-radius: 8px; transition: var(--transition); }
    .mobile-toggle:hover { background: rgba(0,0,0,0.05); }

    .mobile-nav {
        display: none;
        flex-direction: column;
        background: #fff;
        border-top: 1px solid var(--border);
        padding: 12px 24px 24px;
        box-shadow: var(--shadow);
    }
    .mobile-nav a {
        padding: 12px 16px;
        border-radius: var(--radius-sm);
        color: var(--text);
        font-weight: 500;
        transition: var(--transition);
    }
    .mobile-nav a:hover { background: rgba(230,57,70,0.08); color: var(--primary); }
    .mobile-nav a.active { background: var(--primary); color: #fff; }

    /* ===== Article Banner ===== */
    .article-banner {
        position: relative;
        padding: 80px 0 60px;
        background: linear-gradient(135deg, var(--secondary) 0%, #0b1a2e 100%);
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        background-blend-mode: overlay;
        color: #fff;
        min-height: 320px;
        display: flex;
        align-items: center;
    }
    .article-banner::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(29,53,87,0.85) 0%, rgba(11,26,46,0.75) 100%);
        z-index: 1;
    }
    .article-banner .container { position: relative; z-index: 2; width: 100%; }
    .article-banner .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.9rem;
        color: rgba(255,255,255,0.7);
        margin-bottom: 20px;
        flex-wrap: wrap;
    }
    .article-banner .breadcrumb a { color: rgba(255,255,255,0.8); }
    .article-banner .breadcrumb a:hover { color: #fff; }
    .article-banner .breadcrumb .sep { color: rgba(255,255,255,0.4); }
    .article-banner h1 {
        font-size: 2.4rem;
        color: #fff;
        max-width: 900px;
        margin-bottom: 16px;
        line-height: 1.25;
        text-shadow: 0 2px 20px rgba(0,0,0,0.3);
    }
    .article-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        align-items: center;
        color: rgba(255,255,255,0.85);
        font-size: 0.95rem;
    }
    .article-meta .badge {
        background: var(--primary);
        color: #fff;
        padding: 4px 16px;
        border-radius: 50px;
        font-size: 0.85rem;
        font-weight: 600;
    }
    .article-meta span { display: flex; align-items: center; gap: 6px; }
    .article-meta i { font-size: 1rem; opacity: 0.7; }

    /* ===== Article Content ===== */
    .article-section { padding: 60px 0; background: var(--bg-alt); }
    .article-layout {
        display: grid;
        grid-template-columns: 1fr 320px;
        gap: 48px;
    }
    .article-body {
        background: #fff;
        border-radius: var(--radius);
        padding: 40px 44px;
        box-shadow: var(--shadow);
    }
    .article-body .content {
        font-size: 1.05rem;
        line-height: 1.9;
        color: var(--text);
    }
    .article-body .content p { margin-bottom: 1.2em; }
    .article-body .content h2,
    .article-body .content h3 { margin-top: 1.6em; margin-bottom: 0.6em; color: var(--secondary); }
    .article-body .content ul, 
    .article-body .content ol { margin-bottom: 1.2em; padding-left: 1.5em; }
    .article-body .content li { margin-bottom: 0.4em; list-style: disc; }
    .article-body .content a { color: var(--primary); font-weight: 500; border-bottom: 1px solid transparent; }
    .article-body .content a:hover { border-bottom-color: var(--primary); }
    .article-body .content img { border-radius: var(--radius-sm); margin: 1.5em 0; box-shadow: var(--shadow); }
    .article-body .content blockquote {
        border-left: 4px solid var(--primary);
        background: rgba(230,57,70,0.06);
        padding: 16px 24px;
        margin: 1.5em 0;
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-light);
        font-style: italic;
    }

    .article-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 32px;
        padding-top: 24px;
        border-top: 1px solid var(--border);
    }
    .article-tags .tag {
        padding: 6px 16px;
        border-radius: 50px;
        background: rgba(230,57,70,0.08);
        color: var(--primary);
        font-size: 0.85rem;
        font-weight: 500;
        transition: var(--transition);
    }
    .article-tags .tag:hover { background: var(--primary); color: #fff; }

    .article-share {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-top: 20px;
        padding-top: 20px;
        border-top: 1px solid var(--border);
    }
    .article-share span { font-weight: 600; color: var(--secondary); font-size: 0.95rem; }
    .article-share a {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--bg);
        color: var(--text-light);
        font-size: 1.1rem;
        transition: var(--transition);
    }
    .article-share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

    /* Sidebar */
    .article-sidebar { display: flex; flex-direction: column; gap: 32px; }
    .sidebar-card {
        background: #fff;
        border-radius: var(--radius);
        padding: 28px;
        box-shadow: var(--shadow);
    }
    .sidebar-card h3 {
        font-size: 1.15rem;
        margin-bottom: 16px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--primary);
        display: inline-block;
    }
    .sidebar-card ul { display: flex; flex-direction: column; gap: 12px; }
    .sidebar-card ul li a {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 8px 12px;
        border-radius: var(--radius-sm);
        color: var(--text);
        font-weight: 500;
        transition: var(--transition);
    }
    .sidebar-card ul li a:hover { background: rgba(230,57,70,0.06); color: var(--primary); padding-left: 16px; }
    .sidebar-card ul li a i { color: var(--primary); font-size: 0.9rem; width: 20px; text-align: center; }
    .sidebar-cta {
        background: linear-gradient(135deg, var(--secondary), #0b1a2e);
        color: #fff;
        padding: 32px 28px;
        border-radius: var(--radius);
        text-align: center;
    }
    .sidebar-cta h4 { color: #fff; font-size: 1.2rem; margin-bottom: 8px; }
    .sidebar-cta p { color: rgba(255,255,255,0.8); font-size: 0.95rem; margin-bottom: 20px; }
    .sidebar-cta .btn { background: var(--primary); color: #fff; padding: 12px 28px; border-radius: 50px; font-weight: 600; display: inline-block; transition: var(--transition); }
    .sidebar-cta .btn:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230,57,70,0.4); }

    /* ===== Related Posts ===== */
    .related-section { padding: 60px 0; background: var(--bg); }
    .related-section .section-title {
        text-align: center;
        font-size: 1.8rem;
        margin-bottom: 40px;
        position: relative;
    }
    .related-section .section-title::after {
        content: '';
        display: block;
        width: 60px;
        height: 4px;
        background: var(--primary);
        border-radius: 4px;
        margin: 12px auto 0;
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .related-card {
        background: #fff;
        border-radius: var(--radius);
        overflow: hidden;
        box-shadow: var(--shadow);
        transition: var(--transition);
    }
    .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
    .related-card .card-img {
        width: 100%;
        height: 180px;
        object-fit: cover;
        border-radius: 0;
    }
    .related-card .card-body { padding: 20px; }
    .related-card .card-body .cat-tag {
        font-size: 0.8rem;
        color: var(--primary);
        font-weight: 600;
        margin-bottom: 6px;
        display: block;
    }
    .related-card .card-body h4 { font-size: 1rem; margin-bottom: 8px; }
    .related-card .card-body h4 a { color: var(--secondary); }
    .related-card .card-body h4 a:hover { color: var(--primary); }
    .related-card .card-body p { font-size: 0.88rem; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .related-card .card-body .date { font-size: 0.8rem; color: var(--text-light); margin-top: 10px; display: block; }

    /* ===== FAQ Section ===== */
    .faq-section { padding: 60px 0; background: var(--bg-alt); }
    .faq-section .section-title {
        text-align: center;
        font-size: 1.8rem;
        margin-bottom: 40px;
        position: relative;
    }
    .faq-section .section-title::after {
        content: '';
        display: block;
        width: 60px;
        height: 4px;
        background: var(--primary);
        border-radius: 4px;
        margin: 12px auto 0;
    }
    .faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
    .faq-item {
        background: #fff;
        border-radius: var(--radius-sm);
        box-shadow: var(--shadow);
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item:hover { box-shadow: var(--shadow-hover); }
    .faq-question {
        padding: 18px 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        cursor: pointer;
        font-weight: 600;
        color: var(--secondary);
        background: none;
        border: none;
        width: 100%;
        text-align: left;
        font-size: 1rem;
        transition: var(--transition);
    }
    .faq-question:hover { color: var(--primary); }
    .faq-question i { transition: var(--transition); color: var(--primary); font-size: 0.9rem; }
    .faq-item.open .faq-question i { transform: rotate(180deg); }
    .faq-answer {
        padding: 0 24px 18px;
        color: var(--text-light);
        font-size: 0.95rem;
        line-height: 1.7;
        display: none;
    }
    .faq-item.open .faq-answer { display: block; }

    /* ===== CTA Section ===== */
    .cta-section {
        padding: 80px 0;
        background: linear-gradient(135deg, var(--secondary), #0b1a2e);
        text-align: center;
        color: #fff;
        background-image: url('/assets/images/backpic/back-3.png');
        background-size: cover;
        background-position: center;
        background-blend-mode: overlay;
        position: relative;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(29,53,87,0.88), rgba(11,26,46,0.82));
        z-index: 1;
    }
    .cta-section .container { position: relative; z-index: 2; }
    .cta-section h2 { color: #fff; font-size: 2rem; margin-bottom: 16px; }
    .cta-section p { color: rgba(255,255,255,0.85); font-size: 1.1rem; max-width: 640px; margin: 0 auto 32px; }
    .cta-section .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
    .cta-section .btn-primary {
        background: var(--primary);
        color: #fff;
        padding: 14px 36px;
        border-radius: 50px;
        font-weight: 700;
        font-size: 1.05rem;
        transition: var(--transition);
        display: inline-flex;
        align-items: center;
        gap: 10px;
    }
    .cta-section .btn-primary:hover { background: var(--primary-dark); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(230,57,70,0.4); }
    .cta-section .btn-outline {
        background: transparent;
        color: #fff;
        padding: 14px 36px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1.05rem;
        border: 2px solid rgba(255,255,255,0.3);
        transition: var(--transition);
        display: inline-flex;
        align-items: center;
        gap: 10px;
    }
    .cta-section .btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); transform: translateY(-3px); }

    /* ===== Footer ===== */
    .site-footer {
        background: #111827;
        color: rgba(255,255,255,0.8);
        padding: 60px 0 30px;
    }
    .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: 1.3rem; margin-bottom: 16px; display: inline-flex; }
    .footer-brand .logo i { color: var(--primary); }
    .footer-brand p { font-size: 0.92rem; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 360px; }
    .footer-col h4 { color: #fff; font-size: 1.05rem; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
    .footer-col h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 30px; height: 3px; background: var(--primary); border-radius: 4px; }
    .footer-col a { display: block; color: rgba(255,255,255,0.6); padding: 6px 0; font-size: 0.92rem; transition: var(--transition); }
    .footer-col a:hover { color: #fff; padding-left: 6px; }
    .footer-bottom {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-top: 24px;
        font-size: 0.88rem;
        color: rgba(255,255,255,0.5);
        flex-wrap: wrap;
        gap: 12px;
    }
    .footer-bottom a { color: rgba(255,255,255,0.6); }
    .footer-bottom a:hover { color: #fff; }

    /* ===== Not Found ===== */
    .not-found-box {
        text-align: center;
        padding: 80px 24px;
        background: #fff;
        border-radius: var(--radius);
        box-shadow: var(--shadow);
    }
    .not-found-box i { font-size: 4rem; color: var(--primary); margin-bottom: 20px; display: block; }
    .not-found-box h2 { font-size: 1.8rem; margin-bottom: 12px; }
    .not-found-box p { color: var(--text-light); margin-bottom: 24px; }
    .not-found-box .btn {
        display: inline-block;
        padding: 12px 32px;
        background: var(--primary);
        color: #fff;
        border-radius: 50px;
        font-weight: 600;
        transition: var(--transition);
    }
    .not-found-box .btn:hover { background: var(--primary-dark); transform: translateY(-2px); }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .article-layout { grid-template-columns: 1fr; }
        .related-grid { grid-template-columns: repeat(2, 1fr); }
        .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
        .nav-links { display: none; }
        .mobile-toggle { display: block; }
        .mobile-nav.open { display: flex; }
        .search-wrap { max-width: 240px; }
        .search-wrap input { padding: 8px 14px; font-size: 0.85rem; }
        .search-wrap button { padding: 8px 14px; }
        .article-banner { padding: 60px 0 40px; min-height: 260px; }
        .article-banner h1 { font-size: 1.6rem; }
        .article-body { padding: 24px 20px; }
        .article-layout { gap: 32px; }
        .related-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
        .related-card .card-img { height: 140px; }
        .footer-grid { grid-template-columns: 1fr; gap: 32px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .cta-section { padding: 60px 0; }
        .cta-section h2 { font-size: 1.5rem; }
        .sidebar-card { padding: 20px; }
    }
    @media (max-width: 520px) {
        .header-inner { gap: 8px; }
        .search-wrap { max-width: 140px; }
        .search-wrap input { padding: 6px 10px; font-size: 0.8rem; }
        .search-wrap button { padding: 6px 10px; }
        .logo { font-size: 1.1rem; }
        .logo i { font-size: 1.2rem; }
        .article-banner h1 { font-size: 1.3rem; }
        .article-meta { gap: 12px; font-size: 0.85rem; flex-wrap: wrap; }
        .related-grid { grid-template-columns: 1fr; }
        .related-card .card-img { height: 180px; }
        .article-body { padding: 16px; }
        .article-body .content { font-size: 0.95rem; }
        .faq-question { padding: 14px 16px; font-size: 0.9rem; }
        .faq-answer { padding: 0 16px 14px; }
        .cta-section .btn-primary,
        .cta-section .btn-outline { padding: 12px 24px; font-size: 0.95rem; width: 100%; justify-content: center; }
        .container { padding: 0 16px; }
    }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #457b9d;
            --secondary-dark: #1d3557;
            --accent: #f4a261;
            --accent-light: #fae1b4;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1d3557;
            --bg-light-gray: #f1f3f5;
            --text-dark: #212529;
            --text-main: #343a40;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border-light: #dee2e6;
            --border-card: #e9ecef;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --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 12px 40px rgba(0,0,0,0.12);
            --shadow-hover: 0 18px 48px rgba(0,0,0,0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --spacing-section: 80px;
            --spacing-block: 48px;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; border-radius: 4px; }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--text-dark); font-weight: 700; }
        h1 { font-size: 2.8rem; letter-spacing: -0.02em; }
        h2 { font-size: 2.0rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 2px solid transparent;
            line-height: 1.4;
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.35);
        }
        .btn-primary:active { transform: translateY(0); box-shadow: none; }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.25);
        }
        .btn-secondary:active { transform: translateY(0); }
        .btn-lg { padding: 16px 42px; font-size: 1.05rem; }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; border-radius: 40px; }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            line-height: 1.5;
            background: var(--primary-light);
            color: #fff;
            letter-spacing: 0.3px;
        }
        .badge-outline {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }
        .badge-soft {
            background: rgba(230,57,70,0.08);
            color: var(--primary);
        }
        .tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 6px;
            font-size: 0.76rem;
            font-weight: 500;
            background: var(--bg-light-gray);
            color: var(--text-light);
            transition: all var(--transition);
        }
        .tag:hover { background: var(--primary); color: #fff; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
            height: var(--header-height);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
            transition: opacity var(--transition);
        }
        .logo i { font-size: 1.5rem; color: var(--primary); }
        .logo:hover { opacity: 0.85; color: var(--primary); }

        .search-wrap {
            flex: 1;
            max-width: 480px;
            margin: 0 12px;
        }
        .search-wrap form {
            display: flex;
            align-items: center;
            background: var(--bg-light-gray);
            border-radius: 50px;
            border: 1.5px solid transparent;
            transition: all var(--transition);
            overflow: hidden;
        }
        .search-wrap form:focus-within {
            border-color: var(--primary);
            background: var(--bg-white);
            box-shadow: 0 0 0 4px rgba(230,57,70,0.08);
        }
        .search-wrap input {
            flex: 1;
            padding: 10px 18px;
            background: transparent;
            border: none;
            outline: none;
            font-size: 0.92rem;
            color: var(--text-dark);
            min-width: 0;
        }
        .search-wrap input::placeholder { color: var(--text-light); }
        .search-wrap button {
            padding: 10px 18px;
            color: var(--text-light);
            font-size: 1rem;
            transition: color var(--transition);
            background: transparent;
        }
        .search-wrap button:hover { color: var(--primary); }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-main);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-links a:hover { background: rgba(230,57,70,0.06); color: var(--primary); }
        .nav-links a.active,
        .nav-links a[aria-current="page"] {
            background: var(--primary);
            color: #fff;
        }
        .nav-links a.active:hover { background: var(--primary-dark); }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 6px 10px;
            border-radius: 8px;
            background: transparent;
            transition: background var(--transition);
        }
        .mobile-toggle:hover { background: var(--bg-light-gray); }

        .mobile-nav {
            display: none;
            position: absolute;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-md);
            padding: 16px 24px;
            flex-direction: column;
            gap: 8px;
            z-index: 999;
        }
        .mobile-nav.open { display: flex; }
        .mobile-nav a {
            padding: 12px 18px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-main);
            transition: all var(--transition);
        }
        .mobile-nav a:hover { background: rgba(230,57,70,0.06); color: var(--primary); }
        .mobile-nav a.active { background: var(--primary); color: #fff; }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            padding: 100px 0 80px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            background-blend-mode: overlay;
            color: var(--text-white);
            text-align: center;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(29,53,87,0.85) 0%, rgba(230,57,70,0.55) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            color: #fff;
            margin-bottom: 16px;
            font-size: 3rem;
        }
        .page-hero p {
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 28px;
            opacity: 0.9;
            line-height: 1.7;
        }
        .page-hero .hero-badges {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 12px;
        }
        .page-hero .hero-badges .badge {
            background: rgba(255,255,255,0.18);
            color: #fff;
            backdrop-filter: blur(4px);
            padding: 6px 20px;
            font-size: 0.85rem;
        }

        /* ===== Section ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt { background: var(--bg-light-gray); }
        .section-white { background: var(--bg-white); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-title {
            text-align: center;
            margin-bottom: 16px;
            font-size: 2.0rem;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 44px;
            font-size: 1.05rem;
        }
        .section-dark .section-subtitle { color: rgba(255,255,255,0.7); }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-grid.col-2 { grid-template-columns: repeat(2, 1fr); }
        .card-grid.col-4 { grid-template-columns: repeat(4, 1fr); }

        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-card);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            display: block;
        }
        .card-body {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body .badge { margin-bottom: 10px; align-self: flex-start; }
        .card-body h3 { margin-bottom: 10px; font-size: 1.2rem; }
        .card-body h3 a { color: var(--text-dark); }
        .card-body h3 a:hover { color: var(--primary); }
        .card-body p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }
        .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }
        .card-body .card-meta i { margin-right: 4px; }

        /* ===== List Block ===== */
        .list-block {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .list-item {
            display: flex;
            align-items: start;
            gap: 16px;
            padding: 18px 22px;
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: all var(--transition);
        }
        .list-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .list-item .num {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            min-width: 36px;
            line-height: 1.4;
        }
        .list-item .content h4 { font-size: 1rem; margin-bottom: 4px; }
        .list-item .content p { font-size: 0.88rem; color: var(--text-light); }
        .list-item .content .tag { margin-top: 6px; }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: all var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .stat-item .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-top: 6px;
        }
        .stat-item i {
            font-size: 2rem;
            color: var(--secondary);
            margin-bottom: 12px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-card);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-sm); }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            background: transparent;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: background var(--transition);
        }
        .faq-question:hover { background: rgba(230,57,70,0.03); }
        .faq-question i { transition: transform var(--transition); color: var(--primary); font-size: 1.1rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-block {
            text-align: center;
            padding: 60px 40px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            color: #fff;
        }
        .cta-block h2 { color: #fff; font-size: 2.0rem; margin-bottom: 12px; }
        .cta-block p { opacity: 0.9; margin-bottom: 28px; font-size: 1.05rem; }
        .cta-block .btn {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .cta-block .btn:hover {
            background: transparent;
            color: #fff;
            box-shadow: 0 0 0 2px #fff;
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 56px 0 32px;
            font-size: 0.92rem;
        }
        .site-footer .logo { color: #fff; margin-bottom: 16px; }
        .site-footer .logo i { color: var(--primary); }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand p { line-height: 1.7; margin-top: 8px; max-width: 340px; }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            color: rgba(255,255,255,0.65);
            transition: all var(--transition);
        }
        .footer-col a:hover { color: #fff; padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
            .page-hero h1 { font-size: 2.4rem; }
            h2 { font-size: 1.7rem; }
            :root { --spacing-section: 60px; }
        }

        @media (max-width: 768px) {
            .nav-links { display: none; }
            .mobile-toggle { display: block; }
            .search-wrap { max-width: 260px; }
            .search-wrap input { padding: 8px 14px; font-size: 0.85rem; }
            .header-inner { gap: 10px; }
            .page-hero { padding: 70px 0 56px; }
            .page-hero h1 { font-size: 1.9rem; }
            .page-hero p { font-size: 1rem; }
            .card-grid { grid-template-columns: 1fr; gap: 20px; }
            .card-grid.col-2 { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item { padding: 24px 16px; }
            .stat-item .stat-num { font-size: 2rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-block { padding: 40px 24px; }
            .cta-block h2 { font-size: 1.5rem; }
            .section-title { font-size: 1.6rem; }
            h2 { font-size: 1.5rem; }
            :root { --spacing-section: 48px; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .search-wrap { max-width: 180px; }
            .search-wrap input { padding: 6px 10px; font-size: 0.8rem; }
            .search-wrap button { padding: 8px 12px; }
            .logo span { font-size: 1rem; }
            .logo i { font-size: 1.2rem; }
            .page-hero h1 { font-size: 1.6rem; }
            .page-hero p { font-size: 0.9rem; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item { padding: 18px 12px; }
            .stat-item .stat-num { font-size: 1.7rem; }
            .btn-lg { padding: 14px 28px; font-size: 0.95rem; }
            .faq-question { padding: 14px 16px; font-size: 0.92rem; }
            .faq-answer { padding: 0 16px 14px; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-12 { gap: 12px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-wrap { flex-wrap: wrap; }
        .inline-block { display: inline-block; }