/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #7C3AED;
            --primary-dark: #5B21B6;
            --primary-light: #A78BFA;
            --primary-bg: #F5F0FF;
            --secondary: #F59E0B;
            --secondary-dark: #D97706;
            --secondary-light: #FDE68A;
            --bg: #FAFAFA;
            --bg-alt: #F3F4F6;
            --bg-dark: #0F0F1A;
            --card-bg: #FFFFFF;
            --text: #1A1A2E;
            --text-light: #6B7280;
            --text-white: #FFFFFF;
            --border: #E5E7EB;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-primary: 0 4px 20px rgba(124,58,237,0.25);
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container: 1200px;
            --header-top-h: 40px;
            --nav-h: 72px;
            --gap: 24px;
            --gap-lg: 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        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; }
        input, textarea { font-family: inherit; font-size: 16px; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            padding: 12px 28px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px;
            transition: var(--transition); line-height: 1.4; white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary); color: var(--text-white);
            box-shadow: var(--shadow-primary);
        }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(124,58,237,0.35); }
        .btn-primary:active { transform: translateY(0); }
        .btn-secondary {
            background: var(--secondary); color: var(--text);
            box-shadow: 0 4px 16px rgba(245,158,11,0.3);
        }
        .btn-secondary:hover { background: var(--secondary-dark); transform: translateY(-2px); }
        .btn-outline {
            background: transparent; color: var(--text-white); border: 2px solid rgba(255,255,255,0.5);
        }
        .btn-outline:hover { border-color: var(--text-white); background: rgba(255,255,255,0.1); transform: translateY(-2px); }
        .btn-lg { padding: 16px 40px; font-size: 18px; border-radius: var(--radius); }
        .btn-sm { padding: 8px 18px; font-size: 13px; }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block; padding: 4px 14px; border-radius: 20px; font-size: 13px; font-weight: 500;
            background: var(--primary-bg); color: var(--primary); border: 1px solid rgba(124,58,237,0.15);
        }
        .badge-hot { background: #FEF2F2; color: #DC2626; border-color: rgba(220,38,38,0.15); }
        .badge-new { background: #ECFDF5; color: #059669; border-color: rgba(5,150,105,0.15); }

        /* ===== Section ===== */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-title {
            text-align: center; margin-bottom: 48px;
        }
        .section-title h2 { font-size: 36px; margin-bottom: 12px; letter-spacing: -0.5px; }
        .section-title p { font-size: 17px; color: var(--text-light); max-width: 640px; margin: 0 auto; }
        .section-title .badge { margin-bottom: 16px; }
        .section-dark .section-title p { color: rgba(255,255,255,0.6); }

        /* ===== Header Top Bar ===== */
        .header-top {
            height: var(--header-top-h); background: var(--bg-dark); color: rgba(255,255,255,0.7);
            font-size: 13px; display: flex; align-items: center;
        }
        .header-top .container { display: flex; justify-content: space-between; align-items: center; width: 100%; }
        .header-top a { color: rgba(255,255,255,0.8); }
        .header-top a:hover { color: var(--secondary); }
        .header-top .top-left { display: flex; align-items: center; gap: 8px; }
        .header-top .top-left i { font-size: 12px; }
        .header-top .top-right { display: flex; align-items: center; gap: 18px; }
        .header-top .top-right a { display: inline-flex; align-items: center; gap: 4px; }

        /* ===== Nav ===== */
        .navbar {
            height: var(--nav-h); background: var(--card-bg); border-bottom: 1px solid var(--border);
            position: sticky; top: 0; z-index: 1000; box-shadow: var(--shadow-sm);
        }
        .navbar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
        .navbar .logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--primary); }
        .navbar .logo i { font-size: 26px; }
        .navbar .logo span { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .nav-links { display: flex; align-items: center; gap: 4px; }
        .nav-links a {
            padding: 8px 20px; border-radius: var(--radius-sm); font-weight: 500; font-size: 15px;
            color: var(--text); transition: var(--transition); position: relative;
        }
        .nav-links a:hover { color: var(--primary); background: var(--primary-bg); }
        .nav-links a.active { color: var(--primary); background: var(--primary-bg); font-weight: 600; }
        .nav-links a.active::after { content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--primary); border-radius: 2px; }
        .nav-actions { display: flex; align-items: center; gap: 12px; }
        .nav-actions .btn { padding: 8px 20px; font-size: 14px; }
        .nav-toggle { display: none; font-size: 24px; color: var(--text); padding: 8px; cursor: pointer; }

        /* ===== Hero ===== */
        .hero {
            position: relative; min-height: 620px; display: flex; align-items: center;
            background: linear-gradient(135deg, #0F0F1A 0%, #1A1A3E 50%, #2D1B69 100%);
            overflow: hidden; padding: 80px 0;
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.25; mix-blend-mode: overlay;
        }
        .hero::after {
            content: ''; position: absolute; inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(124,58,237,0.2) 0%, transparent 70%);
        }
        .hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        .hero-content h1 { font-size: 52px; font-weight: 800; color: var(--text-white); line-height: 1.15; letter-spacing: -1px; margin-bottom: 20px; }
        .hero-content h1 span { background: linear-gradient(135deg, var(--secondary), #F97316); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .hero-content p { font-size: 18px; color: rgba(255,255,255,0.75); max-width: 520px; margin-bottom: 32px; line-height: 1.8; }
        .hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-visual { display: flex; justify-content: center; align-items: center; position: relative; }
        .hero-visual .hero-card {
            background: rgba(255,255,255,0.06); backdrop-filter: blur(20px);
            border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-lg);
            padding: 32px; width: 100%; max-width: 420px;
            display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
        }
        .hero-visual .hero-card-item {
            background: rgba(255,255,255,0.08); border-radius: var(--radius); padding: 20px 16px;
            text-align: center; color: var(--text-white); transition: var(--transition);
        }
        .hero-visual .hero-card-item:hover { background: rgba(255,255,255,0.14); transform: translateY(-4px); }
        .hero-visual .hero-card-item i { font-size: 32px; color: var(--secondary); margin-bottom: 8px; }
        .hero-visual .hero-card-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
        .hero-visual .hero-card-item p { font-size: 12px; color: rgba(255,255,255,0.5); }

        /* ===== Features ===== */
        .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
        .feature-card {
            background: var(--card-bg); border-radius: var(--radius); padding: 36px 28px;
            box-shadow: var(--shadow); border: 1px solid var(--border);
            transition: var(--transition); text-align: center;
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .feature-card .icon {
            width: 64px; height: 64px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
            margin: 0 auto 20px; font-size: 28px; color: var(--text-white);
        }
        .feature-card .icon.purple { background: linear-gradient(135deg, var(--primary), var(--primary-light)); }
        .feature-card .icon.amber { background: linear-gradient(135deg, var(--secondary), #F97316); }
        .feature-card .icon.emerald { background: linear-gradient(135deg, #10B981, #34D399); }
        .feature-card h3 { font-size: 20px; margin-bottom: 10px; }
        .feature-card p { color: var(--text-light); font-size: 15px; line-height: 1.7; }

        /* ===== Categories ===== */
        .categories-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
        .category-card {
            position: relative; border-radius: var(--radius); overflow: hidden;
            min-height: 280px; display: flex; align-items: flex-end;
            background: var(--bg-dark); transition: var(--transition);
        }
        .category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.5; transition: var(--transition); }
        .category-card:hover img { opacity: 0.3; transform: scale(1.05); }
        .category-card .overlay {
            position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0,0,0,0.85) 0%, transparent 60%);
        }
        .category-card .content { position: relative; z-index: 2; padding: 28px 24px; color: var(--text-white); width: 100%; }
        .category-card .content h3 { font-size: 22px; margin-bottom: 6px; }
        .category-card .content p { font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 12px; }
        .category-card .content .badge { background: rgba(255,255,255,0.12); color: var(--text-white); border-color: rgba(255,255,255,0.15); }
        .category-card .content .badge i { margin-right: 4px; }

        /* ===== Latest News (CMS) ===== */
        .news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); }
        .news-card {
            background: var(--card-bg); border-radius: var(--radius); overflow: hidden;
            box-shadow: var(--shadow); border: 1px solid var(--border);
            transition: var(--transition); display: flex; flex-direction: column;
        }
        .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .news-card .news-img {
            height: 200px; background: var(--bg-alt); overflow: hidden;
            display: flex; align-items: center; justify-content: center;
        }
        .news-card .news-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .news-card:hover .news-img img { transform: scale(1.05); }
        .news-card .news-body { padding: 22px 24px; flex: 1; display: flex; flex-direction: column; }
        .news-card .news-body .meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; font-size: 13px; color: var(--text-light); }
        .news-card .news-body .meta .badge { font-size: 11px; padding: 2px 10px; }
        .news-card .news-body h3 { font-size: 18px; margin-bottom: 8px; line-height: 1.4; }
        .news-card .news-body h3 a { color: var(--text); }
        .news-card .news-body h3 a:hover { color: var(--primary); }
        .news-card .news-body p { font-size: 14px; color: var(--text-light); flex: 1; margin-bottom: 12px; }
        .news-card .news-body .news-footer { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-light); border-top: 1px solid var(--border); padding-top: 12px; }
        .news-card .news-body .news-footer a { color: var(--primary); font-weight: 500; }
        .news-card .news-body .news-footer a:hover { color: var(--primary-dark); }
        .news-empty { grid-column: 1 / -1; text-align: center; padding: 60px 20px; color: var(--text-light); background: var(--card-bg); border-radius: var(--radius); border: 1px dashed var(--border); }
        .news-empty i { font-size: 48px; color: var(--border); margin-bottom: 16px; display: block; }

        /* ===== Stats ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
        .stat-item { text-align: center; padding: 32px 20px; background: rgba(255,255,255,0.04); border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.06); transition: var(--transition); }
        .stat-item:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
        .stat-item .num { font-size: 42px; font-weight: 800; background: linear-gradient(135deg, var(--secondary), #F97316); -webkit-background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.2; margin-bottom: 4px; }
        .stat-item .label { font-size: 15px; color: rgba(255,255,255,0.6); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--border);
            overflow: hidden; transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-item .faq-q {
            padding: 20px 24px; display: flex; justify-content: space-between; align-items: center;
            cursor: pointer; font-weight: 600; font-size: 16px; transition: var(--transition);
        }
        .faq-item .faq-q i { color: var(--text-light); transition: var(--transition); font-size: 14px; }
        .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: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-light); font-size: 15px; line-height: 1.8;
        }
        .faq-item.active .faq-a { max-height: 300px; padding: 0 24px 20px; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, #6D28D9 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/cover no-repeat;
            opacity: 0.1; mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 38px; color: var(--text-white); margin-bottom: 16px; }
        .cta-section p { font-size: 18px; color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto 32px; }
        .cta-section .btn { font-size: 18px; padding: 16px 48px; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 60px 0 30px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { font-size: 22px; font-weight: 800; color: var(--text-white); margin-bottom: 12px; display: inline-flex; align-items: center; gap: 8px; }
        .footer-brand .logo i { color: var(--secondary); }
        .footer-brand p { font-size: 14px; line-height: 1.8; max-width: 360px; }
        .footer-col h4 { color: var(--text-white); font-size: 16px; margin-bottom: 16px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { font-size: 14px; color: rgba(255,255,255,0.6); }
        .footer-col ul li a:hover { color: var(--secondary); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px;
            display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
            font-size: 13px; color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--secondary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero .container { grid-template-columns: 1fr; gap: 40px; text-align: center; }
            .hero-content p { margin: 0 auto 32px; }
            .hero-btns { justify-content: center; }
            .hero-visual .hero-card { max-width: 380px; margin: 0 auto; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .categories-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .header-top .top-right span { display: none; }
            .nav-links { display: none; }
            .nav-links.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0; background: var(--card-bg); border-bottom: 1px solid var(--border); padding: 16px 20px; box-shadow: var(--shadow-lg); gap: 4px; }
            .nav-links.open a { padding: 12px 16px; width: 100%; }
            .nav-links.open a.active::after { display: none; }
            .nav-toggle { display: block; }
            .nav-actions .btn span { display: none; }
            .hero { min-height: auto; padding: 60px 0; }
            .hero-content h1 { font-size: 36px; }
            .hero-content p { font-size: 16px; }
            .hero-visual .hero-card { padding: 20px; gap: 12px; }
            .hero-visual .hero-card-item { padding: 14px 10px; }
            .hero-visual .hero-card-item i { font-size: 24px; }
            .section { padding: 60px 0; }
            .section-title h2 { font-size: 28px; }
            .features-grid { grid-template-columns: 1fr; }
            .categories-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item .num { font-size: 32px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section h2 { font-size: 28px; }
        }
        @media (max-width: 520px) {
            .hero-content h1 { font-size: 28px; }
            .hero-btns { flex-direction: column; align-items: center; }
            .hero-btns .btn { width: 100%; max-width: 240px; }
            .hero-visual .hero-card { grid-template-columns: 1fr 1fr; }
            .section-title h2 { font-size: 24px; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item { padding: 20px 12px; }
            .stat-item .num { font-size: 28px; }
            .faq-item .faq-q { font-size: 15px; padding: 16px 18px; }
            .faq-item .faq-a { font-size: 14px; }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #2a6df4;
            --primary-dark: #1a4fbf;
            --primary-light: #e8f0fe;
            --secondary: #ff6b35;
            --secondary-light: #fff0e8;
            --accent: #00b894;
            --bg: #f7f9fc;
            --bg-card: #ffffff;
            --bg-dark: #1a1f2e;
            --text: #1a2332;
            --text-light: #5a6a7a;
            --text-white: #f0f4f8;
            --border: #e2e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container: 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;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        input, button, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        button { cursor: pointer; background: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mb-5 { margin-bottom: 3rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .mt-4 { margin-top: 2rem; }
        .mt-5 { margin-top: 3rem; }
        .flex { display: flex; align-items: center; flex-wrap: wrap; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .gap-1 { gap: 0.5rem; }
        .gap-2 { gap: 1rem; }
        .gap-3 { gap: 1.5rem; }
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
        .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 30px; }
        .grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 24px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            padding: 12px 28px; border-radius: var(--radius-sm); font-weight: 600;
            font-size: 0.95rem; transition: all var(--transition); border: 2px solid transparent;
            line-height: 1.4; 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(42,109,244,0.3); }
        .btn-secondary {
            background: var(--secondary); color: #fff; border-color: var(--secondary);
        }
        .btn-secondary:hover { background: #e55a2b; border-color: #e55a2b; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,107,53,0.3); }
        .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: #fff; color: var(--primary); border-color: #fff;
        }
        .btn-light:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; }
        .btn-lg { padding: 16px 36px; font-size: 1.05rem; }
        .btn:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }

        /* ===== Badge ===== */
        .badge {
            display: inline-block; padding: 4px 14px; border-radius: 50px; font-size: 0.78rem;
            font-weight: 600; background: var(--primary-light); color: var(--primary);
        }
        .badge-secondary { background: var(--secondary-light); color: var(--secondary); }
        .badge-accent { background: #e0f7f0; color: #00856a; }
        .badge-dark { background: rgba(255,255,255,0.15); color: #fff; }

        /* ===== Tag ===== */
        .tag {
            display: inline-block; padding: 2px 12px; border-radius: 50px; font-size: 0.75rem;
            font-weight: 500; background: var(--bg); color: var(--text-light); border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .tag:hover { background: var(--primary-light); color: var(--primary); border-color: var(--primary); }

        /* ===== Navigation ===== */
        .navbar {
            background: #fff; border-bottom: 1px solid var(--border);
            position: sticky; top: 0; z-index: 1000; height: var(--nav-height);
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
        }
        .navbar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
        .navbar .logo {
            display: flex; align-items: center; gap: 10px; font-size: 1.25rem;
            font-weight: 800; color: var(--text); text-decoration: none;
        }
        .navbar .logo i { font-size: 1.5rem; color: var(--primary); }
        .navbar .logo span { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .navbar .logo:hover { color: var(--text); }
        .nav-links { display: flex; align-items: center; gap: 8px; }
        .nav-links a {
            padding: 8px 18px; border-radius: var(--radius-sm); font-weight: 500;
            color: var(--text-light); font-size: 0.92rem; transition: all var(--transition);
            position: relative; text-decoration: none;
        }
        .nav-links a:hover { color: var(--primary); background: var(--primary-light); }
        .nav-links a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
        .nav-links a.active::after { content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; border-radius: 4px; background: var(--primary); }
        .nav-actions { display: flex; align-items: center; gap: 12px; }
        .nav-actions .btn i { font-size: 0.85rem; }
        .nav-toggle { display: none; font-size: 1.5rem; color: var(--text); padding: 4px 8px; border-radius: var(--radius-sm); transition: background var(--transition); }
        .nav-toggle:hover { background: var(--bg); }

        /* ===== Hero / Banner ===== */
        .article-hero {
            position: relative; padding: 80px 0 60px; background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover; background-position: center; background-blend-mode: overlay;
            overflow: hidden;
        }
        .article-hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(26,31,46,0.88) 0%, rgba(26,31,46,0.72) 100%);
            z-index: 1;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .breadcrumb {
            display: flex; align-items: center; gap: 8px; font-size: 0.85rem;
            color: rgba(255,255,255,0.6); margin-bottom: 24px; flex-wrap: wrap;
        }
        .article-hero .breadcrumb a { color: rgba(255,255,255,0.7); text-decoration: none; }
        .article-hero .breadcrumb a:hover { color: #fff; }
        .article-hero .breadcrumb i { font-size: 0.7rem; color: rgba(255,255,255,0.4); }
        .article-hero .breadcrumb .current { color: #fff; font-weight: 500; }
        .article-hero h1 {
            font-size: 2.6rem; color: #fff; max-width: 860px; line-height: 1.25;
            margin-bottom: 20px; text-shadow: 0 2px 12px rgba(0,0,0,0.2);
        }
        .article-hero .meta {
            display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
            color: rgba(255,255,255,0.75); font-size: 0.9rem;
        }
        .article-hero .meta i { margin-right: 5px; }
        .article-hero .meta .badge { font-size: 0.75rem; padding: 3px 14px; }
        .article-hero .meta span { display: flex; align-items: center; gap: 4px; }

        /* ===== Main Content ===== */
        .article-main { padding: 50px 0 60px; }
        .article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 50px; align-items: start; }
        .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: 1.4rem; }
        .article-body .content h2, .article-body .content h3 { margin-top: 2rem; margin-bottom: 1rem; }
        .article-body .content h2 { font-size: 1.6rem; }
        .article-body .content h3 { font-size: 1.25rem; }
        .article-body .content ul, .article-body .content ol { margin-bottom: 1.4rem; padding-left: 1.8rem; }
        .article-body .content ul { list-style: disc; }
        .article-body .content ol { list-style: decimal; }
        .article-body .content li { margin-bottom: 0.5rem; }
        .article-body .content img { border-radius: var(--radius-sm); margin: 1.5rem 0; }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary); background: var(--primary-light);
            padding: 16px 24px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5rem 0; color: var(--text-light); font-style: italic;
        }
        .article-body .content a { color: var(--primary); font-weight: 500; text-decoration: underline; }
        .article-body .content a:hover { color: var(--primary-dark); }

        /* article tags & share */
        .article-footer-bar {
            margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border);
            display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
        }
        .article-footer-bar .tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
        .article-footer-bar .tags .tag { font-size: 0.8rem; }
        .article-footer-bar .share { display: flex; align-items: center; gap: 10px; }
        .article-footer-bar .share a {
            display: flex; align-items: center; justify-content: center;
            width: 36px; height: 36px; border-radius: 50%;
            background: var(--bg); color: var(--text-light); font-size: 0.95rem;
            transition: all var(--transition); border: 1px solid var(--border);
        }
        .article-footer-bar .share a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

        /* ===== Sidebar ===== */
        .article-sidebar { display: flex; flex-direction: column; gap: 30px; }
        .sidebar-card {
            background: #fff; border-radius: var(--radius); padding: 28px;
            box-shadow: var(--shadow); border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 1.1rem; font-weight: 700; margin-bottom: 18px;
            padding-bottom: 12px; border-bottom: 2px solid var(--primary-light);
            display: flex; align-items: center; gap: 10px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-list { display: flex; flex-direction: column; gap: 12px; }
        .sidebar-list a {
            display: flex; gap: 14px; align-items: flex-start; padding: 10px 0;
            border-bottom: 1px solid var(--border); text-decoration: none;
            transition: all var(--transition);
        }
        .sidebar-list a:last-child { border-bottom: none; }
        .sidebar-list a:hover { padding-left: 6px; }
        .sidebar-list a img {
            width: 70px; height: 52px; object-fit: cover; border-radius: 6px; flex-shrink: 0;
        }
        .sidebar-list a .info { flex: 1; min-width: 0; }
        .sidebar-list a .info h4 { font-size: 0.9rem; font-weight: 600; color: var(--text); margin-bottom: 4px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .sidebar-list a .info span { font-size: 0.78rem; color: var(--text-light); }
        .sidebar-list a:hover .info h4 { color: var(--primary); }
        .sidebar-cta { text-align: center; }
        .sidebar-cta p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 16px; }
        .sidebar-cta .btn { width: 100%; }

        /* ===== Article Navigation (prev/next) ===== */
        .article-nav { margin-top: 40px; }
        .article-nav-inner {
            display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
        }
        .article-nav-inner a {
            display: flex; flex-direction: column; gap: 6px;
            padding: 20px 24px; border-radius: var(--radius); background: #fff;
            box-shadow: var(--shadow); border: 1px solid var(--border);
            transition: all var(--transition); text-decoration: none;
        }
        .article-nav-inner a:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
        .article-nav-inner a .label { font-size: 0.8rem; color: var(--text-light); font-weight: 500; display: flex; align-items: center; gap: 6px; }
        .article-nav-inner a .title { font-size: 0.95rem; font-weight: 600; color: var(--text); display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
        .article-nav-inner a:hover .title { color: var(--primary); }
        .article-nav-inner a.next { text-align: right; }
        .article-nav-inner a.next .label { justify-content: flex-end; }

        /* ===== Related Posts ===== */
        .related-section { padding: 60px 0; background: #fff; }
        .related-section .section-title { text-align: center; margin-bottom: 40px; }
        .related-section .section-title h2 { font-size: 1.8rem; margin-bottom: 10px; }
        .related-section .section-title p { color: var(--text-light); max-width: 600px; margin: 0 auto; }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .related-card {
            background: #fff; border-radius: var(--radius); overflow: hidden;
            box-shadow: var(--shadow); border: 1px solid var(--border);
            transition: all var(--transition); text-decoration: none; display: block;
        }
        .related-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
        .related-card .card-img {
            width: 100%; height: 180px; object-fit: cover; border-radius: 0;
        }
        .related-card .card-body { padding: 20px 22px 24px; }
        .related-card .card-body .badge { margin-bottom: 10px; }
        .related-card .card-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; transition: color var(--transition); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card:hover .card-body h3 { color: var(--primary); }
        .related-card .card-body p { font-size: 0.88rem; color: var(--text-light); margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-body .meta { font-size: 0.8rem; color: var(--text-light); display: flex; align-items: center; gap: 12px; }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0; background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.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(26,31,46,0.9) 0%, rgba(26,31,46,0.75) 100%);
        }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 { font-size: 2rem; color: #fff; margin-bottom: 16px; }
        .cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.75); max-width: 640px; margin: 0 auto 32px; }
        .cta-section .btn-group { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.75); padding: 60px 0 30px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
        .footer-brand .logo i { color: var(--primary); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); max-width: 360px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 18px; }
        .footer-col ul { display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: all var(--transition); text-decoration: none; display: flex; align-items: center; gap: 8px; }
        .footer-col ul li a:hover { color: #fff; padding-left: 4px; }
        .footer-col ul li a i { width: 16px; font-size: 0.85rem; color: var(--primary); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px;
            display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
            font-size: 0.82rem; color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); text-decoration: none; }
        .footer-bottom a:hover { color: #fff; }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center; padding: 60px 40px; background: #fff;
            border-radius: var(--radius); box-shadow: var(--shadow);
        }
        .not-found-box i { font-size: 3rem; color: var(--text-light); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 1.6rem; margin-bottom: 12px; }
        .not-found-box p { color: var(--text-light); margin-bottom: 24px; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
            .related-grid { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            :root { --nav-height: 64px; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-hero { padding: 50px 0 40px; }
            .article-body { padding: 24px 20px; }
            .article-layout { gap: 30px; }
            .article-sidebar { grid-template-columns: 1fr; }
            .article-nav-inner { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
            .nav-links {
                display: none; position: absolute; top: var(--nav-height); left: 0; right: 0;
                background: #fff; flex-direction: column; padding: 16px 24px; gap: 4px;
                border-bottom: 1px solid var(--border); box-shadow: 0 8px 30px rgba(0,0,0,0.08);
            }
            .nav-links.open { display: flex; }
            .nav-links a { padding: 12px 16px; width: 100%; border-radius: var(--radius-sm); }
            .nav-links a.active::after { display: none; }
            .nav-toggle { display: block; }
            .nav-actions .btn span { display: none; }
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section p { font-size: 0.95rem; }
            .sidebar-card { padding: 20px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-hero h1 { font-size: 1.5rem; }
            .article-hero .meta { gap: 12px; font-size: 0.82rem; }
            .article-body { padding: 18px 14px; }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
            .related-card .card-img { height: 140px; }
            .btn-lg { padding: 12px 24px; font-size: 0.95rem; }
            .navbar .logo span { font-size: 1rem; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --primary-light: #a5b4fc;
            --primary-bg: #eef2ff;
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #ec4899;
            --bg: #f8fafc;
            --bg-alt: #ffffff;
            --bg-dark: #0f172a;
            --text: #1e293b;
            --text-light: #64748b;
            --text-muted: #94a3b8;
            --text-inverse: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.16);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 72px;
            --max-width: 1200px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text);
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.35rem;
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            color: var(--text-light);
            margin-bottom: 0.5rem;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航栏 ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: var(--transition);
        }
        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-xs);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-actions .btn {
            padding: 8px 20px;
            font-size: 0.9rem;
            border-radius: var(--radius-xs);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .nav-actions .btn i {
            font-size: 0.85rem;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff !important;
            border: none;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
        }
        .btn-sm {
            padding: 6px 16px;
            font-size: 0.85rem;
        }
        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text);
            padding: 6px;
            border-radius: var(--radius-xs);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        /* ===== 分类 Banner ===== */
        .category-banner {
            margin-top: var(--nav-height);
            padding: 100px 0 80px;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(236, 72, 153, 0.1) 0%, transparent 60%);
            pointer-events: none;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-banner .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-inverse);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }
        .category-banner .badge i {
            color: var(--secondary);
        }
        .category-banner h1 {
            color: var(--text-inverse);
            font-size: 3.2rem;
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .category-banner h1 i {
            color: var(--secondary);
        }
        .category-banner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.15rem;
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .category-banner .banner-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
        }
        .category-banner .banner-stats .stat-item {
            text-align: center;
            color: var(--text-inverse);
        }
        .category-banner .banner-stats .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-banner .banner-stats .stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 2px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-inverse);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-header h2 i {
            color: var(--primary);
            margin-right: 8px;
        }
        .section-header p {
            max-width: 600px;
            margin: 0 auto;
            color: var(--text-light);
            font-size: 1.05rem;
        }
        .section-dark .section-header h2 {
            color: var(--text-inverse);
        }
        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== 攻略分类卡片 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }
        .category-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 28px 20px 24px;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .category-card:hover::before {
            transform: scaleX(1);
        }
        .category-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .category-card:hover .icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .category-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .category-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }
        .category-card .count {
            display: inline-block;
            margin-top: 12px;
            padding: 2px 14px;
            border-radius: 50px;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ===== 攻略文章卡片 ===== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }
        .article-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .article-card .thumb {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: var(--border-light);
        }
        .article-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .article-card:hover .thumb img {
            transform: scale(1.05);
        }
        .article-card .thumb .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 14px;
            border-radius: 50px;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .article-card .thumb .tag i {
            margin-right: 4px;
            font-size: 0.75rem;
        }
        .article-card .body {
            padding: 22px 24px 24px;
        }
        .article-card .body .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .article-card .body .meta i {
            margin-right: 4px;
        }
        .article-card .body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .article-card .body h3 a {
            color: var(--text);
        }
        .article-card .body h3 a:hover {
            color: var(--primary);
        }
        .article-card .body p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .body .footer-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }
        .article-card .body .footer-meta .author {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .article-card .body .footer-meta .author img {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            object-fit: cover;
        }
        .article-card .body .footer-meta .views {
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .article-card .body .footer-meta .views i {
            margin-right: 4px;
        }

        /* ===== 精选攻略 ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .featured-main {
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            min-height: 420px;
            background: var(--bg-dark);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .featured-main:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .featured-main img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .featured-main .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.2) 60%, transparent 100%);
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
        }
        .featured-main .overlay .badge-feat {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 50px;
            background: var(--secondary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
            width: fit-content;
        }
        .featured-main .overlay h3 {
            color: #fff;
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .featured-main .overlay p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            max-width: 480px;
            margin-bottom: 16px;
        }
        .featured-main .overlay .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-xs);
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
            width: fit-content;
        }
        .featured-main .overlay .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.5);
        }
        .featured-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .featured-item {
            display: flex;
            gap: 16px;
            background: var(--bg-alt);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            border: 1px solid var(--border);
            transition: var(--transition);
            align-items: center;
        }
        .featured-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow);
            border-color: var(--primary-light);
        }
        .featured-item .rank {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary-light);
            min-width: 36px;
            text-align: center;
            line-height: 1;
        }
        .featured-item .info {
            flex: 1;
            min-width: 0;
        }
        .featured-item .info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .featured-item .info p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
        }
        .featured-item .info .badge-sm {
            display: inline-block;
            padding: 1px 10px;
            border-radius: 50px;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 4px;
        }

        /* ===== 攻略作者团队 ===== */
        .author-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 28px;
        }
        .author-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .author-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .author-card .avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 16px;
            border: 3px solid var(--primary-bg);
            transition: var(--transition);
        }
        .author-card:hover .avatar {
            border-color: var(--primary-light);
            transform: scale(1.05);
        }
        .author-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
        }
        .author-card .role {
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 8px;
        }
        .author-card p {
            font-size: 0.88rem;
            color: var(--text-light);
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .author-card .count-articles {
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .author-card .count-articles i {
            color: var(--primary);
            margin-right: 4px;
        }

        /* ===== 攻略专题 ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .topic-card {
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            min-height: 260px;
            background: var(--bg-dark);
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
        }
        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .topic-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
            transition: transform 0.5s ease;
        }
        .topic-card:hover img {
            transform: scale(1.05);
        }
        .topic-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15, 23, 42, 0.8) 0%, rgba(15, 23, 42, 0.1) 80%);
            padding: 28px 24px 24px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
        }
        .topic-card .overlay h4 {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .topic-card .overlay p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.88rem;
            margin-bottom: 10px;
        }
        .topic-card .overlay .btn-topic {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 0.82rem;
            font-weight: 500;
            transition: var(--transition);
            width: fit-content;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .topic-card .overlay .btn-topic:hover {
            background: var(--primary);
            border-color: var(--primary);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-alt);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            border: 1px solid var(--border);
            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: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: var(--transition);
            color: var(--text);
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-item .faq-q:hover {
            color: var(--primary);
        }
        .faq-item .faq-q i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .faq-item .faq-q[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.8;
            display: none;
        }
        .faq-item .faq-a.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius);
            padding: 60px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-white {
            padding: 14px 36px;
            border-radius: var(--radius-xs);
            background: #fff;
            color: var(--primary) !important;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }
        .cta-section .btn-outline-white {
            padding: 14px 36px;
            border-radius: var(--radius-xs);
            border: 2px solid rgba(255, 255, 255, 0.4);
            color: #fff !important;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
        }
        .footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
        .footer-brand .logo i {
            color: var(--primary-light);
        }
        .footer-brand .logo span {
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.92rem;
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col ul li a:hover {
            color: #fff;
            transform: translateX(4px);
        }
        .footer-col ul li a i {
            font-size: 0.85rem;
            color: var(--primary-light);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 移动端响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .featured-main {
                min-height: 320px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .category-banner h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-110%);
                opacity: 0;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-xs);
                font-size: 1rem;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: var(--primary-bg);
                color: var(--primary);
            }
            .nav-toggle {
                display: block;
            }
            .nav-actions .btn span {
                display: none;
            }
            .category-banner {
                padding: 60px 0 50px;
                min-height: 280px;
            }
            .category-banner h1 {
                font-size: 1.8rem;
            }
            .category-banner p {
                font-size: 1rem;
            }
            .category-banner .banner-stats {
                gap: 24px;
            }
            .category-banner .banner-stats .stat-item .num {
                font-size: 1.5rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .author-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .featured-main .overlay h3 {
                font-size: 1.25rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .cta-section .btn-white,
            .cta-section .btn-outline-white {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .category-card {
                padding: 20px 14px 18px;
            }
            .category-card .icon {
                width: 44px;
                height: 44px;
                font-size: 1.3rem;
                margin-bottom: 12px;
            }
            .category-card h4 {
                font-size: 0.92rem;
            }
            .category-card p {
                font-size: 0.78rem;
            }
            .author-grid {
                grid-template-columns: 1fr;
            }
            .article-card .thumb {
                height: 180px;
            }
            .article-card .body {
                padding: 18px 18px 20px;
            }
            .featured-item {
                padding: 12px 14px;
            }
            .featured-item .rank {
                font-size: 1.3rem;
                min-width: 28px;
            }
            .featured-main {
                min-height: 240px;
            }
            .featured-main .overlay {
                padding: 20px;
            }
            .featured-main .overlay h3 {
                font-size: 1.1rem;
            }
            .faq-item .faq-q {
                padding: 14px 18px;
                font-size: 0.9rem;
            }
            .faq-item .faq-a {
                padding: 0 18px 14px;
                font-size: 0.85rem;
            }
            .category-banner h1 {
                font-size: 1.5rem;
            }
            .category-banner .badge {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
            .category-banner .banner-stats .stat-item .num {
                font-size: 1.2rem;
            }
            .category-banner .banner-stats .stat-item .label {
                font-size: 0.75rem;
            }
        }