/* roulang page: index */
:root {
            --primary: #1a2d5c;
            --primary-light: #2a4a8c;
            --primary-dark: #0f1d3a;
            --accent: #c8963e;
            --accent-light: #e8b85f;
            --accent-dark: #a0782a;
            --bg: #f7f6f3;
            --bg-alt: #edebe6;
            --surface: #ffffff;
            --text: #1c1c1e;
            --text-heading: #0f1923;
            --text-secondary: #5a5d63;
            --text-muted: #8a8d93;
            --border: #e2e0db;
            --border-light: #efede9;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 3px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 4px 16px rgba(0,0,0,0.07);
            --shadow-md: 0 8px 28px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --shadow-hover: 0 12px 36px rgba(0,0,0,0.14);
            --transition-fast: 0.18s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --topbar-height: 36px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Top Bar ===== */
        .topbar {
            background-color: var(--primary-dark);
            color: rgba(255,255,255,0.85);
            font-size: 13px;
            height: var(--topbar-height);
            line-height: var(--topbar-height);
            position: relative;
            z-index: 1001;
        }
        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .topbar-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topbar-left span {
            color: rgba(255,255,255,0.7);
        }
        .topbar-left .topbar-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: #4ade80;
            margin-right: 6px;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .topbar-right a {
            color: rgba(255,255,255,0.8);
            font-size: 13px;
        }
        .topbar-right a:hover {
            color: var(--accent-light);
        }
        .topbar-btn {
            background: var(--accent);
            color: #fff !important;
            padding: 4px 14px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 12px;
            line-height: 1.6;
            transition: background var(--transition-fast);
            display: inline-block;
            height: auto;
            margin-top: -1px;
            vertical-align: middle;
        }
        .topbar-btn:hover {
            background: var(--accent-light);
            color: #fff !important;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-xs);
            height: var(--header-height);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-links a {
            display: block;
            padding: 10px 18px;
            border-radius: var(--radius);
            font-weight: 500;
            font-size: 15px;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(26,45,92,0.05);
        }
        .nav-links a.active {
            color: var(--primary);
            background: rgba(26,45,92,0.07);
            font-weight: 600;
        }
        .nav-cta {
            background: var(--accent) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 10px 20px !important;
            border-radius: 25px !important;
            margin-left: 8px;
            transition: all var(--transition) !important;
        }
        .nav-cta:hover {
            background: var(--accent-light) !important;
            box-shadow: 0 4px 16px rgba(200,150,62,0.35);
            transform: translateY(-1px);
        }
        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            z-index: 1002;
            background: none;
            border: none;
        }
        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 3px;
            transition: all var(--transition);
        }
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            min-height: 580px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,29,58,0.88) 0%, rgba(26,45,92,0.78) 40%, rgba(15,29,58,0.85) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            padding-top: 60px;
            padding-bottom: 60px;
        }
        .hero-content {
            max-width: 640px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(200,150,62,0.2);
            border: 1px solid rgba(200,150,62,0.4);
            color: var(--accent-light);
            padding: 6px 16px;
            border-radius: 25px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .hero h1 span {
            color: var(--accent-light);
            position: relative;
        }
        .hero-desc {
            font-size: 18px;
            color: rgba(255,255,255,0.8);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 500px;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 18px rgba(200,150,62,0.3);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            box-shadow: 0 8px 28px rgba(200,150,62,0.4);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.35);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.08);
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .hero-stat {
            color: #fff;
        }
        .hero-stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1;
        }
        .hero-stat-label {
            font-size: 13px;
            color: rgba(255,255,255,0.65);
            margin-top: 4px;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 72px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 12px;
            background: rgba(200,150,62,0.08);
            padding: 5px 14px;
            border-radius: 20px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
        }
        .section-alt {
            background: var(--bg-alt);
        }

        /* ===== Features Grid ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 18px;
            background: rgba(26,45,92,0.06);
            color: var(--primary);
            transition: all var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== Category Entrance ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: block;
            color: inherit;
        }
        .category-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            color: inherit;
            border-color: transparent;
        }
        .category-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .category-card:hover .category-card-img img {
            transform: scale(1.06);
        }
        .category-card-body {
            padding: 20px 22px;
        }
        .category-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 6px;
        }
        .category-card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .category-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 14px;
            z-index: 2;
        }

        /* ===== News List ===== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .news-item {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .news-item-thumb {
            width: 90px;
            height: 70px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-alt);
        }
        .news-item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }
        .news-item-info {
            flex: 1;
            min-width: 0;
        }
        .news-item-info h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item-info .news-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .news-item-info .news-excerpt {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(26,45,92,0.07);
            color: var(--primary);
            white-space: nowrap;
        }
        .news-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 15px;
            grid-column: 1 / -1;
        }

        /* ===== Stats Section ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== Process / Steps ===== */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .step-item {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            position: relative;
            transition: all var(--transition);
            counter-increment: step;
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }
        .step-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-heading);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition-fast);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: rgba(26,45,92,0.03);
        }
        .faq-arrow {
            font-size: 12px;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(200,150,62,0.1);
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255,255,255,0.75);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand-name {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255,255,255,0.55);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(255,255,255,0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .category-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-row { grid-template-columns: repeat(2, 1fr); }
            .steps-list { grid-template-columns: repeat(2, 1fr); }
            .news-list { grid-template-columns: 1fr; }
            .hero h1 { font-size: 38px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .topbar { display: none; }
            .site-header { height: 60px; }
            :root { --header-height: 60px; }
            .menu-toggle { display: flex; }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--surface);
                flex-direction: column;
                padding: 80px 28px 30px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transition: right var(--transition);
                z-index: 1001;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
                justify-content: center;
            }
            .hero {
                min-height: 440px;
            }
            .hero h1 { font-size: 30px; }
            .hero-desc { font-size: 15px; }
            .hero-stats { gap: 18px; }
            .hero-stat-num { font-size: 24px; }
            .features-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: 1fr; }
            .stats-row { grid-template-columns: repeat(2, 1fr); }
            .steps-list { grid-template-columns: 1fr 1fr; }
            .section { padding: 48px 0; }
            .section-title { font-size: 26px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .news-item { flex-direction: column; }
            .news-item-thumb { width: 100%; height: 140px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero { min-height: 380px; }
            .hero h1 { font-size: 26px; }
            .hero-desc { font-size: 14px; }
            .hero-btns { flex-direction: column; gap: 10px; }
            .hero-btns .btn { width: 100%; justify-content: center; }
            .hero-stats { gap: 14px; }
            .stats-row { grid-template-columns: 1fr 1fr; gap: 12px; }
            .steps-list { grid-template-columns: 1fr; }
            .stat-num { font-size: 30px; }
            .section-title { font-size: 22px; }
            .btn { padding: 11px 20px; font-size: 14px; }
            .feature-card { padding: 22px 18px; }
            .category-card-img { height: 160px; }
        }

        /* Overlay for mobile menu */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .nav-overlay.show {
            display: block;
            opacity: 1;
        }

/* roulang page: article */
:root {
            --primary: #1a1a2e;
            --primary-light: #25254a;
            --accent: #c8963e;
            --accent-light: #e0b868;
            --accent-glow: rgba(200, 150, 62, 0.25);
            --bg: #f7f5f0;
            --bg-alt: #efe9df;
            --surface: #ffffff;
            --surface-alt: #faf9f6;
            --text: #1e1e2a;
            --text-secondary: #5a5a6e;
            --text-muted: #8a8a9a;
            --border: #e0dcd4;
            --border-light: #ede9e0;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
            --shadow: 0 4px 16px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 28px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.10);
            --shadow-xl: 0 24px 64px rgba(0,0,0,0.12);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1200px;
            --max-width-content: 780px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input, textarea {
            font-family: inherit;
            font-size: inherit;
        }

        ul, ol {
            list-style: none;
        }

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

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

        /* Header & Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--primary);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            box-shadow: 0 2px 20px rgba(0,0,0,0.15);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .site-header .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: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
            flex-shrink: 0;
        }

        .logo:hover {
            opacity: 0.88;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--accent);
            color: #ffffff;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-links li a {
            display: inline-block;
            padding: 10px 18px;
            border-radius: var(--radius);
            color: rgba(255,255,255,0.82);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: #ffffff;
            background: rgba(255,255,255,0.07);
        }

        .nav-links li a.active {
            color: var(--accent-light);
            background: rgba(200,150,62,0.1);
            font-weight: 600;
        }

        .nav-cta {
            background: var(--accent) !important;
            color: #ffffff !important;
            font-weight: 600 !important;
            padding: 10px 22px !important;
            border-radius: 24px !important;
            transition: all var(--transition) !important;
            box-shadow: 0 2px 10px rgba(200,150,62,0.3);
        }

        .nav-cta:hover {
            background: var(--accent-light) !important;
            box-shadow: 0 4px 18px rgba(200,150,62,0.45) !important;
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #ffffff;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .menu-toggle:hover {
            background: rgba(255,255,255,0.08);
        }

        .menu-toggle.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* Main */
        .main-content {
            flex: 1;
            padding-bottom: 60px;
        }

        /* Article Banner */
        .article-banner {
            background: linear-gradient(170deg, #0d0d1f 0%, #1a1a35 40%, #1e1e3a 100%);
            position: relative;
            padding: 48px 0 40px;
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.09;
            pointer-events: none;
        }

        .article-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--bg), transparent);
        }

        .article-banner .container-content {
            position: relative;
            z-index: 1;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.875rem;
            color: rgba(255,255,255,0.55);
            margin-bottom: 18px;
        }

        .breadcrumb a {
            color: rgba(255,255,255,0.7);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: var(--accent-light);
        }

        .breadcrumb .sep {
            color: rgba(255,255,255,0.3);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: var(--accent-light);
            font-weight: 500;
        }

        .article-banner-title {
            font-size: 2rem;
            font-weight: 750;
            color: #ffffff;
            line-height: 1.35;
            letter-spacing: 0.01em;
            margin-bottom: 14px;
            max-width: 700px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-icon {
            width: 16px;
            height: 16px;
            opacity: 0.6;
        }

        .article-meta .category-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(200,150,62,0.2);
            color: var(--accent-light);
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 600;
            border: 1px solid rgba(200,150,62,0.25);
        }

        /* Article Body */
        .article-body-section {
            padding: 40px 0 20px;
        }

        .article-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }

        .article-featured-image {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 28px;
            box-shadow: var(--shadow-sm);
        }

        .article-featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius);
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text);
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin: 32px 0 14px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--border-light);
            letter-spacing: 0.01em;
        }

        .article-content h3 {
            font-size: 1.22rem;
            font-weight: 650;
            color: var(--text);
            margin: 24px 0 10px;
        }

        .article-content p {
            margin-bottom: 16px;
        }

        .article-content ul,
        .article-content ol {
            margin: 12px 0 18px 20px;
            padding-left: 8px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

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

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 14px 20px;
            margin: 20px 0;
            background: var(--surface-alt);
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content img {
            border-radius: var(--radius);
            margin: 16px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-content code {
            background: var(--bg-alt);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            font-family: var(--font-mono);
            color: #c0392b;
        }

        .article-content pre {
            background: #1a1a2e;
            color: #e0dcc8;
            padding: 18px 22px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 18px 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
            font-size: inherit;
        }

        /* Article Footer Meta */
        .article-footer-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }

        .article-tags .tag-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .article-tags .tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--bg-alt);
            color: var(--text-secondary);
            border-radius: 16px;
            font-size: 0.8rem;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .article-tags .tag:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(200,150,62,0.06);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .article-share .share-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .share-btn {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-alt);
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
        }

        .share-btn:hover {
            background: var(--primary);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

        /* Not Found State */
        .not-found-state {
            text-align: center;
            padding: 60px 24px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }

        .not-found-state .nf-icon {
            font-size: 4rem;
            margin-bottom: 16px;
            opacity: 0.5;
        }

        .not-found-state h2 {
            font-size: 1.6rem;
            color: var(--text);
            margin-bottom: 8px;
        }

        .not-found-state p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            text-align: center;
            justify-content: center;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: #ffffff;
            box-shadow: 0 3px 14px rgba(200,150,62,0.3);
        }

        .btn-primary:hover {
            background: var(--accent-light);
            box-shadow: 0 6px 22px rgba(200,150,62,0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--border);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(200,150,62,0.04);
        }

        /* Related Articles */
        .related-section {
            padding: 40px 0 20px;
        }

        .section-label {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 28px;
            letter-spacing: 0.01em;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .related-card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        .related-card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .related-card-cat {
            font-size: 0.75rem;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .related-card-title {
            font-size: 1rem;
            font-weight: 650;
            color: var(--text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .related-card:hover .related-card-title {
            color: var(--accent);
        }

        .related-card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: auto;
        }

        /* FAQ Section */
        .faq-section {
            padding: 48px 0 30px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            transition: all var(--transition-fast);
            gap: 12px;
        }

        .faq-question:hover {
            background: var(--surface-alt);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--accent);
            transition: all var(--transition);
            font-weight: 700;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #ffffff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            padding: 48px 0 10px;
        }

        .cta-block {
            background: linear-gradient(145deg, #1a1a35 0%, #1e2040 50%, #1a1a2e 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(255,255,255,0.06);
        }

        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
        }

        .cta-block > * {
            position: relative;
            z-index: 1;
        }

        .cta-block .cta-icon {
            font-size: 3rem;
            margin-bottom: 12px;
            display: block;
        }

        .cta-block h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .cta-block p {
            color: rgba(255,255,255,0.6);
            font-size: 1rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-block .btn-primary {
            font-size: 1rem;
            padding: 14px 34px;
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .footer-brand-desc {
            font-size: 0.9rem;
            line-height: 1.65;
            color: rgba(255,255,255,0.5);
            max-width: 380px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-banner-title {
                font-size: 1.7rem;
            }
            .article-card {
                padding: 30px 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 62px;
            }
            .container {
                padding: 0 16px;
            }
            .container-content {
                padding: 0 16px;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                padding: 16px 20px 24px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-110%);
                opacity: 0;
                transition: all var(--transition);
                z-index: 999;
                border-bottom: 2px solid rgba(255,255,255,0.06);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-links li a {
                display: block;
                width: 100%;
                padding: 13px 18px;
                font-size: 1rem;
                border-radius: var(--radius);
            }
            .nav-cta {
                text-align: center;
                margin-top: 6px;
                border-radius: var(--radius) !important;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .article-banner {
                padding: 32px 0 28px;
            }
            .article-banner-title {
                font-size: 1.4rem;
            }
            .article-card {
                padding: 22px 18px;
                border-radius: var(--radius);
            }
            .article-content {
                font-size: 1rem;
            }
            .article-footer-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-block {
                padding: 32px 20px;
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .article-banner-title {
                font-size: 1.2rem;
            }
            .article-meta {
                gap: 10px;
                font-size: 0.8rem;
            }
            .article-card {
                padding: 16px 14px;
            }
            .article-content {
                font-size: 0.95rem;
            }
            .article-content h2 {
                font-size: 1.25rem;
            }
            .related-card-body {
                padding: 12px 14px 14px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1e3a5f;
            --color-primary-light: #2a5080;
            --color-primary-dark: #0f1f33;
            --color-accent: #c8963e;
            --color-accent-light: #d9ae5f;
            --color-accent-dark: #a0782a;
            --color-cta: #e85d3a;
            --color-cta-hover: #c94a2b;
            --color-success: #2d8c4e;
            --color-bg: #f5f3ef;
            --color-bg-alt: #edebe5;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-text: #1a1a1a;
            --color-text-secondary: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-text-light: #b0b0b0;
            --color-text-on-dark: #e8e6e0;
            --color-border: #e0dcd5;
            --color-border-light: #ece8e0;
            --color-tag-bg: #f0ebe0;
            --color-tag-text: #8b6914;
            --color-hot: #d94040;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.15);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --max-width: 1240px;
            --header-height: 68px;
            --topbar-height: 36px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            font-size: inherit;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Top Bar ===== */
        .top-bar {
            background-color: var(--color-primary-dark);
            color: var(--color-text-on-dark);
            font-size: 0.8rem;
            height: var(--topbar-height);
            line-height: var(--topbar-height);
            position: relative;
            z-index: 1001;
        }
        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .top-bar-left span {
            color: var(--color-text-light);
        }
        .top-bar-left i {
            color: var(--color-accent-light);
            margin-right: 4px;
            font-size: 0.7rem;
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .top-bar-right a {
            color: var(--color-text-on-dark);
            transition: color var(--transition-fast);
            font-size: 0.8rem;
        }
        .top-bar-right a:hover {
            color: var(--color-accent-light);
        }
        .top-bar-divider {
            width: 1px;
            height: 14px;
            background: rgba(255, 255, 255, 0.2);
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            background: var(--color-bg-card);
            border-bottom: 2px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-xs);
            height: var(--header-height);
        }
        .site-header .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: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }
        .logo:hover {
            opacity: 0.85;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links li a {
            display: inline-block;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(30, 58, 95, 0.05);
        }
        .nav-links li a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(30, 58, 95, 0.07);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--color-cta) !important;
            color: #fff !important;
            padding: 10px 22px !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            transition: all var(--transition-normal) !important;
            box-shadow: 0 2px 10px rgba(232, 93, 58, 0.3);
            margin-left: 8px;
        }
        .nav-cta:hover {
            background: var(--color-cta-hover) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(232, 93, 58, 0.4) !important;
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .menu-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }
        .menu-toggle span {
            width: 26px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-normal);
            display: block;
        }
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: var(--color-bg-alt);
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: var(--color-text-light);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* ===== Category Hero ===== */
        .cat-hero {
            position: relative;
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
            padding: 60px 0;
            overflow: hidden;
            color: #fff;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .cat-hero .container {
            position: relative;
            z-index: 1;
        }
        .cat-hero-content {
            max-width: 700px;
        }
        .cat-hero-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 16px;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }
        .cat-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .cat-hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 560px;
        }
        .cat-hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .cat-hero-stat {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.9);
        }
        .cat-hero-stat strong {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-accent-light);
        }
        .cat-hero-stat i {
            color: var(--color-accent-light);
            font-size: 1rem;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 56px 0;
        }
        .section-alt {
            background: var(--color-bg-card);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
        }
        .section-header .section-subtitle {
            color: var(--color-text-muted);
            font-size: 1rem;
            max-width: 500px;
            margin: 0 auto;
        }
        .section-dark .section-header h2 {
            color: #fff;
        }
        .section-dark .section-header .section-subtitle {
            color: var(--color-text-light);
        }

        /* ===== Filter Tabs ===== */
        .filter-tabs {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 28px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--color-border-light);
        }
        .filter-tab {
            padding: 9px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            user-select: none;
        }
        .filter-tab:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-dark);
            background: #fdfaf3;
        }
        .filter-tab.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }
        .filter-tab .count {
            display: inline-block;
            margin-left: 4px;
            font-size: 0.75rem;
            opacity: 0.7;
        }

        /* ===== Main Layout: Content + Sidebar ===== */
        .content-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 36px;
            align-items: start;
        }

        /* ===== Article Cards ===== */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .article-card {
            display: grid;
            grid-template-columns: 240px 1fr;
            gap: 20px;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }
        .article-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--color-border);
        }
        .article-card-img {
            position: relative;
            overflow: hidden;
            min-height: 100%;
            background: var(--color-bg-alt);
        }
        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .article-card-img img {
            transform: scale(1.06);
        }
        .article-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #fff;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            z-index: 2;
            letter-spacing: 0.02em;
        }
        .article-card-body {
            padding: 18px 20px 18px 4px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 8px;
        }
        .article-card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-text);
            transition: color var(--transition-fast);
        }
        .article-card:hover .article-card-body h3 {
            color: var(--color-primary);
        }
        .article-card-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .article-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .article-card-meta i {
            font-size: 0.75rem;
        }
        .article-card-meta .meta-hot {
            color: var(--color-hot);
            font-weight: 500;
        }

        /* ===== Pagination ===== */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 36px;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 8px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border: 1px solid var(--color-border);
            background: var(--color-bg-card);
            color: var(--color-text-secondary);
        }
        .pagination a:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .pagination .current {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 700;
            box-shadow: var(--shadow-sm);
        }
        .pagination .disabled {
            opacity: 0.4;
            pointer-events: none;
        }
        .pagination .dots {
            border: none;
            background: transparent;
            color: var(--color-text-muted);
        }

        /* ===== Sidebar ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
        }
        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--color-border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i {
            color: var(--color-accent);
            font-size: 0.9rem;
        }
        .sidebar-search {
            display: flex;
            gap: 0;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
        }
        .sidebar-search input {
            flex: 1;
            padding: 11px 14px;
            border: none;
            outline: none;
            font-size: 0.9rem;
            background: var(--color-bg);
            color: var(--color-text);
        }
        .sidebar-search input:focus {
            background: #fff;
        }
        .sidebar-search button {
            padding: 11px 16px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }
        .sidebar-search button:hover {
            background: var(--color-primary-light);
        }

        /* Sidebar hot list */
        .sidebar-hot-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-hot-item {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            padding: 8px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .sidebar-hot-item:last-child {
            border-bottom: none;
        }
        .sidebar-hot-item:hover {
            padding-left: 4px;
        }
        .sidebar-hot-rank {
            width: 26px;
            height: 26px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.8rem;
            flex-shrink: 0;
            color: #fff;
        }
        .rank-1 {
            background: #e85d3a;
        }
        .rank-2 {
            background: #e88a3a;
        }
        .rank-3 {
            background: #c8963e;
        }
        .rank-n {
            background: #aab;
        }
        .sidebar-hot-info {
            flex: 1;
            min-width: 0;
        }
        .sidebar-hot-info a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .sidebar-hot-info a:hover {
            color: var(--color-primary);
        }
        .sidebar-hot-info .hot-meta {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-top: 2px;
        }

        /* Sidebar tags */
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tag {
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            transition: all var(--transition-fast);
            cursor: pointer;
            border: 1px solid transparent;
        }
        .sidebar-tag:hover {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
        }

        /* ===== Featured Section ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 260px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            background-size: cover;
            background-position: center;
            cursor: pointer;
        }
        .featured-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(0, 0, 0, 0.75) 100%);
            z-index: 1;
            transition: opacity var(--transition-normal);
        }
        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .featured-card:hover::before {
            opacity: 0.9;
        }
        .featured-card-content {
            position: relative;
            z-index: 2;
            padding: 24px 20px;
            color: #fff;
            width: 100%;
        }
        .featured-card-content .feat-tag {
            display: inline-block;
            background: var(--color-accent);
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .featured-card-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 4px;
        }
        .featured-card-content p {
            font-size: 0.85rem;
            opacity: 0.85;
            line-height: 1.5;
        }
        .feat-bg-1 {
            background-image: url('/assets/images/coverpic/cover-3.png');
        }
        .feat-bg-2 {
            background-image: url('/assets/images/coverpic/cover-4.png');
        }
        .feat-bg-3 {
            background-image: url('/assets/images/coverpic/cover-5.png');
        }

        /* ===== Stats Strip ===== */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-block {
            padding: 28px 16px;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-normal);
        }
        .stat-block:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-block .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-block .stat-num .accent {
            color: var(--color-accent);
        }
        .stat-block .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }
        .stat-block .stat-icon {
            font-size: 1.6rem;
            color: var(--color-accent);
            margin-bottom: 8px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: transparent;
            cursor: pointer;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: rgba(0, 0, 0, 0.02);
        }
        .faq-question i {
            color: var(--color-accent);
            transition: transform var(--transition-normal);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            padding: 60px 0;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.85;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta-large {
            display: inline-block;
            padding: 14px 36px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 50px;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 20px rgba(200, 150, 62, 0.4);
            letter-spacing: 0.02em;
        }
        .btn-cta-large:hover {
            background: var(--color-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.55);
        }
        .btn-outline-light {
            display: inline-block;
            padding: 14px 36px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-normal);
            margin-left: 12px;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
            padding: 48px 0 0;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand-name {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }
        .footer-brand-desc {
            color: var(--color-text-light);
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 1px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: var(--color-text-light);
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            text-align: center;
            padding: 18px 0;
            color: var(--color-text-light);
            font-size: 0.82rem;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1100px) {
            .content-layout {
                grid-template-columns: 1fr 300px;
                gap: 24px;
            }
            .article-card {
                grid-template-columns: 200px 1fr;
                gap: 16px;
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid .featured-card:last-child {
                grid-column: span 2;
                min-height: 200px;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .cat-hero h1 {
                font-size: 2.1rem;
            }
        }

        @media (max-width: 900px) {
            .content-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: 2;
            }
            .article-list {
                order: 1;
            }
            .article-card {
                grid-template-columns: 180px 1fr;
                gap: 14px;
            }
            .article-card-body {
                padding: 14px 14px 14px 0;
            }
            .article-card-body h3 {
                font-size: 1rem;
            }
            .featured-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .featured-grid .featured-card:last-child {
                grid-column: span 2;
                min-height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-grid>div:first-child {
                grid-column: span 2;
            }
            .cat-hero {
                padding: 48px 0;
            }
            .cat-hero h1 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }
            .site-header {
                height: 60px;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: all var(--transition-normal);
                z-index: 999;
                border-bottom: 2px solid var(--color-border);
            }
            .nav-links.show {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-links li a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
            .nav-cta {
                margin-left: 0;
                text-align: center;
                border-radius: var(--radius-sm) !important;
                margin-top: 6px;
            }
            .cat-hero {
                padding: 36px 0;
            }
            .cat-hero h1 {
                font-size: 1.5rem;
            }
            .cat-hero-desc {
                font-size: 0.95rem;
            }
            .cat-hero-stats {
                gap: 16px;
            }
            .cat-hero-stat strong {
                font-size: 1.2rem;
            }
            .article-card {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .article-card-img {
                height: 180px;
                min-height: auto;
            }
            .article-card-body {
                padding: 16px;
            }
            .filter-tabs {
                gap: 6px;
            }
            .filter-tab {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
            .section {
                padding: 36px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .featured-grid .featured-card:last-child {
                grid-column: span 1;
                min-height: 200px;
            }
            .featured-card {
                min-height: 200px;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-block {
                padding: 20px 12px;
            }
            .stat-block .stat-num {
                font-size: 1.8rem;
            }
            .pagination a,
            .pagination span {
                min-width: 34px;
                height: 34px;
                font-size: 0.82rem;
            }
            .cta-section {
                padding: 40px 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .btn-cta-large,
            .btn-outline-light {
                display: block;
                margin: 8px auto;
                max-width: 260px;
                text-align: center;
            }
            .btn-outline-light {
                margin-left: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-grid>div:first-child {
                grid-column: span 1;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
            .sidebar {
                gap: 16px;
            }
            .sidebar-card {
                padding: 16px 14px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .cat-hero h1 {
                font-size: 1.3rem;
            }
            .cat-hero-desc {
                font-size: 0.88rem;
            }
            .cat-hero-stats {
                gap: 10px;
            }
            .cat-hero-stat {
                font-size: 0.8rem;
            }
            .cat-hero-stat strong {
                font-size: 1rem;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .article-card-img {
                height: 150px;
            }
            .article-card-body h3 {
                font-size: 0.95rem;
            }
            .article-card-excerpt {
                font-size: 0.82rem;
            }
            .filter-tab {
                padding: 6px 11px;
                font-size: 0.78rem;
            }
            .pagination {
                gap: 3px;
            }
            .pagination a,
            .pagination span {
                min-width: 30px;
                height: 30px;
                font-size: 0.78rem;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 14px 16px;
            }
        }