/* roulang page: index */
:root {
            --primary: #0f172a;
            --primary-light: #1e293b;
            --accent: #eab308;
            --accent-hover: #ca8a04;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-body: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border-light: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --nav-width: 240px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.6;
            display: flex;
            min-height: 100vh;
        }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; }

        /* Left Nav */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--primary);
            color: #fff;
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform var(--transition);
            overflow-y: auto;
        }
        .site-nav .nav-brand {
            padding: 28px 20px 16px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-nav .nav-brand .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            flex-shrink: 0;
        }
        .site-nav .nav-brand .logo-text {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0.3px;
            color: #fff;
            line-height: 1.2;
        }
        .site-nav .nav-links {
            padding: 16px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .site-nav .nav-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: rgba(255,255,255,0.7);
            transition: all var(--transition);
        }
        .site-nav .nav-links a i { width: 20px; text-align: center; font-size: 16px; }
        .site-nav .nav-links a:hover { background: rgba(255,255,255,0.08); color: #fff; }
        .site-nav .nav-links a.active {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
        }
        .site-nav .nav-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 12px;
            color: rgba(255,255,255,0.35);
            text-align: center;
        }

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

        /* Mobile header */
        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--primary);
            color: #fff;
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-header .mob-logo {
            font-size: 17px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-header .mob-logo .logo-icon {
            width: 30px;
            height: 30px;
            background: var(--accent);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            color: var(--primary);
        }
        .mobile-header .menu-toggle {
            background: none;
            border: none;
            color: #fff;
            font-size: 24px;
            padding: 4px 8px;
            cursor: pointer;
        }

        /* Container */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Sections */
        section { padding: 72px 0; }
        section.section-sm { padding: 48px 0; }

        /* Hero */
        .hero {
            position: relative;
            padding: 100px 0 80px;
            background: var(--primary);
            color: #fff;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.25;
            pointer-events: none;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(15,23,42,0.6) 100%);
            pointer-events: none;
        }
        .hero .container { position: relative; z-index: 2; }
        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .hero h1 .accent { color: var(--accent); }
        .hero p {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: rgba(255,255,255,0.8);
            max-width: 640px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 36px;
        }
        .hero .hero-badges span {
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(4px);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: rgba(255,255,255,0.9);
            border: 1px solid rgba(255,255,255,0.08);
        }
        .hero .btn-group { display: flex; flex-wrap: wrap; gap: 16px; }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(234,179,8,0.3);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.25);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-sm { padding: 10px 20px; font-size: 13px; }

        /* Section Headers */
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header .accent-line {
            width: 50px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 16px auto 0;
        }

        /* Cards */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .card .card-body { padding: 24px; }
        .card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .card .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .card .card-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(234,179,8,0.12);
            color: #a16207;
            margin-bottom: 10px;
        }

        /* Feature Cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .feature-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(234,179,8,0.1);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 18px;
        }
        .feature-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; color: var(--primary); }
        .feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* News List (CMS) */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .news-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .news-item .news-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .news-item .news-body { padding: 20px; }
        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 8px;
        }
        .news-item .news-meta .cat {
            background: rgba(234,179,8,0.12);
            color: #a16207;
            padding: 0 10px;
            border-radius: 12px;
            font-weight: 500;
        }
        .news-item .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            position: relative;
            padding-top: 16px;
        }
        .step-card .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-size: 1.2rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        .step-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; color: var(--primary); }
        .step-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }

        /* FAQ */
        .faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--accent); }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-item .faq-q:hover { background: rgba(234,179,8,0.04); }
        .faq-item .faq-q i { color: var(--accent); font-size: 14px; transition: transform var(--transition); }
        .faq-item.open .faq-q i { transform: rotate(180deg); }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-a { display: block; }

        /* CTA */
        .cta-section {
            background: var(--primary);
            color: #fff;
            text-align: center;
            padding: 80px 0;
        }
        .cta-section h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.7);
            max-width: 520px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.6);
            padding: 32px 0 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .site-footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .site-footer .footer-brand {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
        }
        .site-footer .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .site-footer .footer-links a {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            transition: color var(--transition);
        }
        .site-footer .footer-links a:hover { color: var(--accent); }
        .site-footer .footer-copy {
            font-size: 12px;
            color: rgba(255,255,255,0.3);
            margin-top: 8px;
            text-align: center;
            width: 100%;
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .site-nav { transform: translateX(-100%); }
            .site-nav.open { transform: translateX(0); }
            .mobile-header { display: flex; }
            .main-content { margin-left: 0; }
            .hero { padding: 72px 0 56px; }
            section { padding: 48px 0; }
        }
        @media (max-width: 767px) {
            .container { padding: 0 16px; }
            .hero { padding: 56px 0 44px; }
            .hero h1 { font-size: 1.6rem; }
            .hero p { font-size: 0.95rem; }
            .feature-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: 1fr; gap: 24px; }
            section { padding: 40px 0; }
            .section-header { margin-bottom: 32px; }
            .cta-section { padding: 48px 0; }
            .btn { padding: 12px 24px; font-size: 14px; }
            .site-footer .footer-inner { flex-direction: column; text-align: center; }
        }
        @media (max-width: 479px) {
            .hero .hero-badges span { font-size: 11px; padding: 4px 12px; }
            .stat-item .stat-number { font-size: 1.8rem; }
        }

        /* Nav overlay on mobile */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            z-index: 999;
        }
        .nav-overlay.show { display: block; }
        @media (max-width: 1023px) {
            .nav-overlay.show { display: block; }
        }

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

        /* Empty state */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 1rem;
        }
        .empty-state i { font-size: 40px; color: var(--text-light); margin-bottom: 16px; display: block; }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg-dark: #0d1b2a;
            --bg-card: #1b2d45;
            --bg-body: #0a1628;
            --text-light: #f1faee;
            --text-muted: #a8b9d0;
            --text-body: #e0e6ed;
            --border-color: #2a3f5a;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 12px 48px rgba(230, 57, 70, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea {
            font-family: inherit;
        }

        /* ===== 左侧导航 ===== */
        .site-nav {
            width: 240px;
            min-height: 100vh;
            background: var(--bg-dark);
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            position: fixed;
            left: 0;
            top: 0;
            z-index: 100;
            transition: var(--transition);
            padding: 0;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 24px 20px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            letter-spacing: 0.5px;
        }

        .nav-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            padding: 16px 12px;
            gap: 4px;
            overflow-y: auto;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
        }

        .nav-links a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }

        .nav-links a:hover {
            background: rgba(230, 57, 70, 0.08);
            color: var(--text-light);
        }

        .nav-links a.active {
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.18), rgba(193, 18, 31, 0.08));
            color: var(--primary-light);
            font-weight: 600;
            border-left: 3px solid var(--primary);
        }

        .nav-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }

        /* ===== 主内容区 ===== */
        .main-wrapper {
            margin-left: 240px;
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 文章头图 ===== */
        .article-hero {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #162a44 100%);
            overflow: hidden;
            padding: 60px 0 40px;
            margin-top: 0;
        }

        .article-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }

        .article-hero .container {
            position: relative;
            z-index: 1;
            width: 100%;
        }

        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.3;
            max-width: 800px;
            margin-bottom: 16px;
            text-shadow: 0 4px 20px rgba(0,0,0,0.5);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            align-items: center;
            color: var(--text-muted);
            font-size: 14px;
            padding-bottom: 8px;
        }

        .article-meta i {
            margin-right: 6px;
            color: var(--primary-light);
        }

        .article-meta .category-badge {
            background: rgba(230, 57, 70, 0.2);
            color: var(--primary-light);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            border: 1px solid rgba(230, 57, 70, 0.3);
        }

        /* ===== 文章正文 ===== */
        .article-body-section {
            padding: 48px 0 64px;
            background: var(--bg-body);
        }

        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 48px 56px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }

        .article-content p {
            margin-bottom: 20px;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
        }

        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-light);
            margin: 36px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-light);
            margin: 28px 0 12px;
        }

        .article-content ul, .article-content ol {
            margin: 0 0 20px 24px;
            color: var(--text-body);
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            border: 1px solid var(--border-color);
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(230, 57, 70, 0.06);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }

        .article-content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content a:hover {
            color: var(--accent);
        }

        /* ===== 文章未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
        }

        .not-found-box i {
            font-size: 64px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .not-found-box h2 {
            font-size: 1.8rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 16px;
        }

        .not-found-box .btn-home {
            display: inline-block;
            padding: 12px 32px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.3);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 48px 0 64px;
            background: var(--bg-dark);
        }

        .related-section .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .related-section .section-title i {
            color: var(--primary);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(230, 57, 70, 0.3);
        }

        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .related-card-body {
            padding: 20px;
        }

        .related-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-card-body p {
            font-size: 13px;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-body .meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            padding: 32px 0;
            margin-top: auto;
        }

        .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
            text-align: center;
        }

        .footer-brand {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            letter-spacing: 0.5px;
        }

        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary-light);
        }

        .footer-copy {
            font-size: 13px;
            color: var(--text-muted);
            opacity: 0.8;
        }

        /* ===== 移动端导航切换 ===== */
        .nav-toggle {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 200;
            background: var(--bg-dark);
            border: 1px solid var(--border-color);
            color: var(--text-light);
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 20px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-card);
        }

        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.6);
            z-index: 90;
            backdrop-filter: blur(4px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-content {
                padding: 36px 32px;
            }
        }

        @media (max-width: 768px) {
            .site-nav {
                transform: translateX(-100%);
            }
            .site-nav.open {
                transform: translateX(0);
            }
            .nav-toggle {
                display: flex;
            }
            .nav-overlay.active {
                display: block;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 0;
            }
            .article-hero h1 {
                font-size: 1.6rem;
            }
            .article-content {
                padding: 24px 20px;
            }
            .article-content h2 {
                font-size: 1.3rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-hero {
                min-height: 260px;
                padding: 48px 0 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-hero h1 {
                font-size: 1.3rem;
            }
            .article-meta {
                font-size: 12px;
                gap: 10px 16px;
            }
            .article-content {
                padding: 16px 14px;
            }
            .article-content p {
                font-size: 15px;
            }
            .not-found-box {
                padding: 48px 16px;
            }
            .not-found-box i {
                font-size: 48px;
            }
            .not-found-box h2 {
                font-size: 1.3rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .breadcrumb span {
            color: var(--text-muted);
        }
        .breadcrumb .sep {
            color: var(--border-color);
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --brand-red: #dc2626;
            --brand-darkred: #b91c1c;
            --brand-amber: #f59e0b;
            --brand-dark: #0a0a1a;
            --brand-dark2: #111127;
            --brand-card: #15153a;
            --brand-light: #f8f9fc;
            --brand-muted: #9ca3af;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --nav-width: 16rem;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 16px 48px rgba(220, 38, 38, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--brand-dark);
            color: #f1f1f7;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
        }

        /* ===== Layout ===== */
        .site-wrapper {
            display: flex;
            min-height: 100vh;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Left Vertical Nav ===== */
        .site-nav {
            width: var(--nav-width);
            min-height: 100vh;
            background: linear-gradient(180deg, #0d0d24 0%, #0a0a1a 100%);
            border-right: 1px solid rgba(220, 38, 38, 0.15);
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            z-index: 1000;
            padding: 2rem 1.25rem;
            transition: var(--transition);
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 1.5rem;
        }
        .logo-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-red), #ef4444);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 4px 16px rgba(220, 38, 38, 0.35);
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            background: linear-gradient(90deg, #fff, #fcd34d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
            padding-top: 0.5rem;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a i {
            width: 1.25rem;
            text-align: center;
            font-size: 1.05rem;
        }
        .nav-links a:hover {
            color: #fff;
            background: rgba(220, 38, 38, 0.12);
        }
        .nav-links a.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(220, 38, 38, 0.2), rgba(245, 158, 11, 0.08));
            border-left: 3px solid var(--brand-red);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            right: 0.75rem;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand-amber);
            box-shadow: 0 0 12px rgba(245, 158, 11, 0.5);
        }
        .nav-footer {
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.3);
            text-align: center;
        }

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

        /* ===== Mobile Nav Toggle ===== */
        .mobile-nav-toggle {
            display: none;
            position: fixed;
            top: 1rem;
            left: 1rem;
            z-index: 1100;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--brand-dark2);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 1.25rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .mobile-nav-toggle:hover {
            background: var(--brand-card);
            border-color: var(--brand-red);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
            z-index: 999;
        }
        .mobile-nav-overlay.open {
            display: block;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 75vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            overflow: hidden;
            padding: 4rem 1.5rem;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            filter: brightness(0.3) saturate(1.1);
            z-index: 0;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 10, 26, 0.4) 0%, rgba(10, 10, 26, 0.85) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 900px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 1.2rem;
            border-radius: 999px;
            background: rgba(220, 38, 38, 0.2);
            border: 1px solid rgba(220, 38, 38, 0.3);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--brand-amber);
            margin-bottom: 1.5rem;
            backdrop-filter: blur(8px);
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 1.25rem;
            background: linear-gradient(135deg, #fff 30%, #fcd34d 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 680px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.2rem;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand-red), #ef4444);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(220, 38, 38, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(220, 38, 38, 0.5);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.2rem;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            backdrop-filter: blur(8px);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-3px);
        }
        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.2rem;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand-amber), #d97706);
            color: #0a0a1a;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
        }
        .btn-gold:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(245, 158, 11, 0.45);
        }

        /* ===== Section ===== */
        .section {
            padding: 5rem 0;
        }
        .section-dark {
            background: var(--brand-dark2);
        }
        .section-card-bg {
            background: var(--brand-card);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 0.75rem;
            color: #fff;
        }
        .section-sub {
            text-align: center;
            color: var(--brand-muted);
            max-width: 600px;
            margin: 0 auto 3.5rem;
            font-size: 1.05rem;
        }
        .section-title-left {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            color: #fff;
        }
        .section-sub-left {
            color: var(--brand-muted);
            max-width: 540px;
            margin-bottom: 2.5rem;
            font-size: 1.05rem;
        }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.75rem;
        }
        .card-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }
        .card-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .card {
            background: var(--brand-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.04);
        }
        .card:hover {
            transform: translateY(-6px);
            border-color: rgba(220, 38, 38, 0.2);
            box-shadow: var(--shadow-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 1.5rem;
        }
        .card-tag {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            border-radius: 999px;
            background: rgba(220, 38, 38, 0.15);
            color: var(--brand-amber);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
            border: 1px solid rgba(220, 38, 38, 0.15);
        }
        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .card-text {
            font-size: 0.9rem;
            color: var(--brand-muted);
            line-height: 1.6;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: 1rem;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .card-meta i {
            margin-right: 0.3rem;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-item {
            text-align: center;
            padding: 2rem 1rem;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.04);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(220, 38, 38, 0.15);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--brand-amber), #fff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--brand-muted);
            margin-top: 0.4rem;
        }

        /* ===== Feature Icons ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .feature-item {
            text-align: center;
            padding: 2.5rem 1.5rem;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.04);
            transition: var(--transition);
        }
        .feature-item:hover {
            background: rgba(255, 255, 255, 0.04);
            border-color: rgba(220, 38, 38, 0.12);
            transform: translateY(-4px);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 1.25rem;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(220, 38, 38, 0.15), rgba(245, 158, 11, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--brand-amber);
            transition: var(--transition);
        }
        .feature-item:hover .feature-icon {
            background: linear-gradient(135deg, rgba(220, 38, 38, 0.25), rgba(245, 158, 11, 0.15));
            transform: scale(1.05);
        }
        .feature-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.5rem;
        }
        .feature-desc {
            font-size: 0.9rem;
            color: var(--brand-muted);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--brand-card);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.04);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(220, 38, 38, 0.1);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 1.5rem;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            text-align: left;
            cursor: pointer;
            transition: var(--transition);
            border: none;
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--brand-amber);
            font-size: 0.85rem;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.5rem;
            color: var(--brand-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0 1.5rem 1.25rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(220, 38, 38, 0.08), rgba(245, 158, 11, 0.04));
            border-top: 1px solid rgba(220, 38, 38, 0.1);
            border-bottom: 1px solid rgba(220, 38, 38, 0.1);
        }
        .cta-box {
            text-align: center;
            padding: 4rem 2rem;
            background: var(--brand-card);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(220, 38, 38, 0.12);
            box-shadow: var(--shadow-card);
        }
        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
        }
        .cta-text {
            color: var(--brand-muted);
            max-width: 560px;
            margin: 0 auto 2rem;
            font-size: 1.05rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0d0d24;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 3rem 0 2rem;
            margin-left: var(--nav-width);
        }
        .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1.25rem;
            text-align: center;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            background: linear-gradient(90deg, #fff, #fcd34d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-links {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            justify-content: center;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--brand-amber);
        }
        .footer-copy {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.25);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-title {
                font-size: 2.8rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-width: 0;
            }
            .site-nav {
                transform: translateX(-100%);
                width: 18rem;
            }
            .site-nav.open {
                transform: translateX(0);
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 0;
            }
            .site-footer {
                margin-left: 0;
                padding: 2rem 0 1.5rem;
            }
            .hero-section {
                min-height: 60vh;
                padding: 5rem 1.25rem 3rem;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section {
                padding: 3rem 0;
            }
            .card-grid-3 {
                grid-template-columns: 1fr;
            }
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            .cta-box {
                padding: 2.5rem 1.5rem;
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-secondary,
            .btn-gold {
                width: 100%;
                max-width: 300px;
                justify-content: center;
            }
            .section-title-left {
                font-size: 1.5rem;
            }
            .nav-links a {
                padding: 0.65rem 0.9rem;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-sub {
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .stat-item {
                padding: 1.25rem 0.75rem;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .card-body {
                padding: 1.1rem;
            }
            .faq-question {
                padding: 1rem 1.1rem;
                font-size: 0.9rem;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
            .container {
                padding: 0 1rem;
            }
        }

        /* ===== Focus / Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        .faq-question:focus-visible {
            outline: 2px solid var(--brand-amber);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-secondary:active {
            transform: scale(0.97);
        }
        .btn-gold:active {
            transform: scale(0.97);
        }

        /* ===== Heat tag ===== */
        .heat-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(245, 158, 11, 0.15);
            color: var(--brand-amber);
            border: 1px solid rgba(245, 158, 11, 0.15);
        }
        .heat-tag i {
            font-size: 0.6rem;
        }
        .heat-tag.hot {
            background: rgba(220, 38, 38, 0.2);
            color: #f87171;
            border-color: rgba(220, 38, 38, 0.2);
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--brand-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.2);
        }