/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c0392b;
            --primary-dark: #962d22;
            --primary-light: #e74c3c;
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --accent-light: #f1c40f;
            --bg: #ffffff;
            --bg-alt: #f8f5f2;
            --bg-dark: #1a1a2e;
            --text: #1a1a2e;
            --text-light: #5a5a7a;
            --text-muted: #8e8ea0;
            --border: #e8e0d8;
            --border-light: #f0ebe6;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 8px 32px rgba(192, 57, 43, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

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

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 880px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-secondary {
            background: var(--secondary);
            color: #fff;
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: #d68910;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }

        /* ===== 徽章 / 标签 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .badge-primary {
            background: var(--primary);
            color: #fff;
        }
        .badge-accent {
            background: var(--accent);
            color: #fff;
        }
        .badge-outline {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }
        .badge-light {
            background: rgba(192, 57, 43, 0.1);
            color: var(--primary);
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: var(--transition);
        }
        .header.scrolled {
            box-shadow: var(--shadow);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo i {
            color: var(--primary);
            font-size: 28px;
        }
        .logo span {
            color: var(--primary);
        }
        .logo:hover {
            color: var(--text);
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            color: var(--text);
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover {
            background: rgba(192, 57, 43, 0.06);
            color: var(--primary);
        }
        .nav a.active {
            background: var(--primary);
            color: #fff;
        }
        .nav a.active:hover {
            background: var(--primary-dark);
        }
        .nav-cta {
            background: var(--primary) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: var(--radius) !important;
        }
        .nav-cta:hover {
            background: var(--primary-dark) !important;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        .mega-trigger {
            position: relative;
        }
        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            padding: 20px 24px;
            min-width: 400px;
            border: 1px solid var(--border-light);
            z-index: 999;
            margin-top: 8px;
        }
        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            display: block;
        }
        .mega-panel-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .mega-panel a {
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
            color: var(--text);
            background: var(--bg-alt);
        }
        .mega-panel a:hover {
            background: rgba(192, 57, 43, 0.08);
            color: var(--primary);
        }
        .mega-panel a i {
            color: var(--primary);
            width: 20px;
            text-align: center;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 28px;
            color: var(--text);
            cursor: pointer;
            padding: 4px;
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow);
            z-index: 999;
            padding: 16px 24px;
            max-height: calc(100vh - var(--header-height));
            overflow-y: auto;
        }
        .mobile-nav.open {
            display: block;
        }
        .mobile-nav a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 16px;
            color: var(--text);
            border-bottom: 1px solid var(--border-light);
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .mobile-nav a.active {
            background: var(--primary);
            color: #fff;
        }
        .mobile-nav a i {
            width: 24px;
            text-align: center;
            margin-right: 8px;
            color: var(--primary);
        }
        .mobile-nav a.active i {
            color: #fff;
        }

        /* ===== Hero ===== */
        .hero {
            padding: 120px 0 80px;
            min-height: 85vh;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #2c3e50 100%);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(192, 57, 43, 0.25) 0%, transparent 70%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 20px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(4px);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero h1 {
            font-size: clamp(40px, 7vw, 68px);
            font-weight: 900;
            line-height: 1.1;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero h1 span {
            background: linear-gradient(135deg, var(--accent), #e74c3c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 580px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-stat h3 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat h3 span {
            color: var(--accent);
        }
        .hero-stat p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin: 0;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }
        .section-title {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.6);
        }
        .text-center {
            text-align: center;
        }
        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卡片 ===== */
        .card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 24px;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-img {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin: -28px -24px 20px -24px;
        }
        .card-img img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .card .meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 12px;
        }
        .card-tags span {
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 11px;
            font-weight: 500;
            background: rgba(192, 57, 43, 0.06);
            color: var(--primary);
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== 图文区块 ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .feature-block.reverse {
            direction: rtl;
        }
        .feature-block.reverse>* {
            direction: ltr;
        }
        .feature-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .feature-img img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }
        .feature-text h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .feature-text p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
        }
        .feature-list li i {
            color: var(--primary);
            font-size: 18px;
            margin-top: 2px;
            flex-shrink: 0;
        }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .category-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .category-card .icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(192, 57, 43, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 28px;
            color: var(--primary);
            transition: var(--transition);
        }
        .category-card:hover .icon {
            background: var(--primary);
            color: #fff;
        }
        .category-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .category-card p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .category-card .badge {
            margin-top: 14px;
        }

        /* ===== 资讯列表 ===== */
        .post-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .post-item {
            display: flex;
            gap: 20px;
            background: #fff;
            padding: 16px 20px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .post-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .post-thumb {
            width: 120px;
            min-height: 90px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-alt);
        }
        .post-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .post-info {
            flex: 1;
            min-width: 0;
        }
        .post-info h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .post-info h4 a {
            color: var(--text);
        }
        .post-info h4 a:hover {
            color: var(--primary);
        }
        .post-info p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-info .meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 8px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .post-info .meta i {
            margin-right: 4px;
        }

        /* ===== 统计数据 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }
        .stat-item h3 {
            font-size: 40px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item h3 span {
            font-size: 24px;
            font-weight: 600;
        }
        .stat-item p {
            font-size: 14px;
            color: var(--text-light);
            margin-top: 4px;
        }
        .section-dark .stat-item h3 {
            color: var(--accent);
        }
        .section-dark .stat-item p {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== 步骤流程 ===== */
        .steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            counter-reset: step;
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            text-align: center;
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            margin: 0 auto 16px;
        }
        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text);
            transition: var(--transition);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--primary);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 60px 50px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-block h2 {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-block p {
            font-size: 16px;
            opacity: 0.85;
            margin-bottom: 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
        }
        .cta-block .btn {
            position: relative;
            background: #fff;
            color: var(--primary);
        }
        .cta-block .btn:hover {
            background: var(--accent);
            color: #fff;
        }

        /* ===== 搜索框 ===== */
        .search-form {
            display: flex;
            gap: 0;
            max-width: 480px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1;
            padding: 14px 20px;
            border: 2px solid var(--border);
            border-right: none;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 15px;
            outline: none;
            transition: var(--transition);
            background: #fff;
        }
        .search-form input:focus {
            border-color: var(--primary);
        }
        .search-form button {
            padding: 14px 24px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--primary-dark);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand h3 span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            max-width: 300px;
        }
        .footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--accent);
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 16px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }
        }
        @media (max-width: 768px) {
            .nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hero {
                padding: 100px 0 60px;
                min-height: 70vh;
            }
            .hero h1 {
                font-size: 34px;
            }
            .hero p {
                font-size: 16px;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .grid-2,
            .grid-3,
            .post-list,
            .feature-block {
                grid-template-columns: 1fr;
            }
            .feature-block.reverse {
                direction: ltr;
            }
            .feature-img img {
                height: 260px;
            }
            .steps {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .section {
                padding: 50px 0;
            }
            .cta-block {
                padding: 40px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .post-item {
                flex-direction: column;
            }
            .post-thumb {
                width: 100%;
                height: 160px;
            }
            .mega-panel {
                min-width: auto;
                left: auto;
                right: 0;
            }
            .mega-panel-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item h3 {
                font-size: 30px;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                border-radius: var(--radius);
                border-right: 2px solid var(--border);
            }
            .search-form button {
                border-radius: var(--radius);
                margin-top: 8px;
            }
            .cta-block h2 {
                font-size: 24px;
            }
        }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
        }
        .empty-state i {
            font-size: 48px;
            margin-bottom: 16px;
            color: var(--border);
        }
        .empty-state p {
            font-size: 15px;
        }

        /* ===== 焦点轮廓 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1a1a2e;
            --color-primary-light: #2d2d4e;
            --color-secondary: #c0392b;
            --color-secondary-light: #e74c3c;
            --color-accent: #d4a017;
            --color-accent-light: #f0c75e;
            --color-bg: #f8f5f0;
            --color-bg-alt: #ede8e0;
            --color-bg-dark: #121212;
            --color-text: #1e1e1e;
            --color-text-light: #5a5a5a;
            --color-text-lighter: #888;
            --color-border: #d5d0c8;
            --color-white: #ffffff;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.18);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1200px;
            --header-height: 76px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--color-secondary);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea,
        select {
            font: inherit;
            color: inherit;
            border: none;
            outline: none;
            background: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-primary);
        }

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

        /* ===== 顶部迷你栏 ===== */
        .top-bar {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            padding: 6px 0;
            letter-spacing: 0.3px;
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px 16px;
        }
        .top-bar a {
            color: rgba(255, 255, 255, 0.85);
        }
        .top-bar a:hover {
            color: var(--color-accent-light);
        }
        .top-bar .top-left span {
            margin-right: 18px;
        }
        .top-bar .top-left i {
            margin-right: 4px;
            color: var(--color-accent-light);
        }
        .top-bar .top-right a {
            margin-left: 14px;
        }

        /* ===== Header / Nav ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            border-bottom: 1px solid var(--color-border);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 24px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo span {
            color: var(--color-secondary);
            font-weight: 300;
        }
        .logo i {
            color: var(--color-accent);
            font-size: 22px;
            margin-right: 4px;
        }

        .nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav>a,
        .mega-trigger>a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav>a i,
        .mega-trigger>a i {
            font-size: 14px;
            color: var(--color-text-lighter);
            transition: var(--transition);
        }
        .nav>a:hover,
        .mega-trigger>a:hover {
            background: var(--color-bg-alt);
            color: var(--color-primary);
        }
        .nav>a:hover i,
        .mega-trigger>a:hover i {
            color: var(--color-secondary);
        }
        .nav>a.active,
        .mega-trigger>a.active {
            background: var(--color-primary);
            color: var(--color-white);
        }
        .nav>a.active i,
        .mega-trigger>a.active i {
            color: var(--color-accent-light);
        }
        .nav .nav-cta {
            background: var(--color-secondary);
            color: var(--color-white) !important;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            margin-left: 8px;
        }
        .nav .nav-cta i {
            color: var(--color-white) !important;
        }
        .nav .nav-cta:hover {
            background: var(--color-secondary-light);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(192, 57, 43, 0.35);
        }

        /* Mega Menu */
        .mega-trigger {
            position: relative;
        }
        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 420px;
            background: var(--color-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 20px 24px;
            border: 1px solid var(--color-border);
            z-index: 200;
            margin-top: 8px;
        }
        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            display: block;
            animation: fadeSlideIn 0.25s ease;
        }
        @keyframes fadeSlideIn {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .mega-panel-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px 20px;
        }
        .mega-panel-grid a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-light);
            background: var(--color-bg);
            transition: var(--transition);
        }
        .mega-panel-grid a i {
            width: 20px;
            color: var(--color-secondary);
            font-size: 16px;
        }
        .mega-panel-grid a:hover {
            background: var(--color-bg-alt);
            color: var(--color-primary);
            transform: translateX(4px);
        }

        /* 汉堡菜单 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* ===== 移动端导航抽屉 ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-white);
            z-index: 999;
            padding: 24px 20px 40px;
            overflow-y: auto;
            border-top: 1px solid var(--color-border);
            box-shadow: var(--shadow-xl);
        }
        .mobile-nav.open {
            display: block;
            animation: fadeSlideIn 0.25s ease;
        }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            font-size: 17px;
            font-weight: 500;
            color: var(--color-text-light);
            border-bottom: 1px solid var(--color-bg-alt);
        }
        .mobile-nav a i {
            width: 22px;
            color: var(--color-text-lighter);
        }
        .mobile-nav a.active {
            background: var(--color-primary);
            color: var(--color-white);
        }
        .mobile-nav a.active i {
            color: var(--color-accent-light);
        }
        .mobile-nav a:hover {
            background: var(--color-bg-alt);
        }
        .mobile-nav .mega-mobile-group {
            margin-top: 12px;
            padding-left: 8px;
        }
        .mobile-nav .mega-mobile-group a {
            font-size: 15px;
            padding: 10px 16px 10px 36px;
            border-bottom: none;
            background: var(--color-bg);
            margin-bottom: 4px;
            border-radius: var(--radius-sm);
        }
        .mobile-nav .mega-mobile-group a i {
            font-size: 14px;
        }
        .mobile-nav .nav-cta-mobile {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 16px;
            padding: 12px 28px;
            background: var(--color-secondary);
            color: var(--color-white) !important;
            border-radius: 50px;
            font-weight: 600;
            border: none;
        }
        .mobile-nav .nav-cta-mobile i {
            color: var(--color-white) !important;
        }

        /* ===== Hero / 分类横幅 ===== */
        .category-hero {
            background: linear-gradient(135deg, var(--color-primary) 0%, #2c1810 70%, #1a1a2e 100%);
            color: var(--color-white);
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--color-bg), transparent);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 160, 23, 0.25);
            backdrop-filter: blur(6px);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-accent-light);
            border: 1px solid rgba(212, 160, 23, 0.3);
            margin-bottom: 20px;
        }
        .category-hero h1 {
            font-size: clamp(2.2rem, 6vw, 3.6rem);
            color: var(--color-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .category-hero h1 span {
            color: var(--color-accent-light);
        }
        .category-hero p {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .category-hero .hero-actions {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .category-hero .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .category-hero .btn-primary:hover {
            background: var(--color-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(212, 160, 23, 0.4);
        }
        .category-hero .btn-secondary {
            background: transparent;
            color: var(--color-white);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            transition: var(--transition);
        }
        .category-hero .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--color-accent-light);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-primary);
            color: var(--color-white);
        }
        .section-dark h2,
        .section-dark h3 {
            color: var(--color-white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            margin-bottom: 12px;
        }
        .section-header h2 span {
            color: var(--color-secondary);
        }
        .section-header p {
            color: var(--color-text-light);
            max-width: 580px;
            margin: 0 auto;
            font-size: 1.05rem;
        }
        .section-header .section-tag {
            display: inline-block;
            background: var(--color-secondary);
            color: var(--color-white);
            padding: 4px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        /* ===== 分类介绍 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-text h3 {
            font-size: 1.6rem;
            margin-bottom: 16px;
        }
        .intro-text p {
            color: var(--color-text-light);
            margin-bottom: 16px;
            font-size: 1.02rem;
        }
        .intro-text .intro-list {
            margin-top: 16px;
        }
        .intro-text .intro-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            font-size: 15px;
            color: var(--color-text-light);
        }
        .intro-text .intro-list li i {
            color: var(--color-secondary);
            width: 20px;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .intro-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        .intro-image .image-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 700;
        }

        /* ===== 内容卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--color-border);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card .card-body {
            padding: 20px 22px 24px;
        }
        .card .card-tag {
            display: inline-block;
            background: var(--color-bg-alt);
            color: var(--color-text-light);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 50px;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .card .card-tag.hot {
            background: var(--color-secondary);
            color: var(--color-white);
        }
        .card .card-tag.new {
            background: var(--color-accent);
            color: var(--color-primary);
        }
        .card .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-primary);
            line-height: 1.4;
        }
        .card .card-title a:hover {
            color: var(--color-secondary);
        }
        .card .card-desc {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--color-text-lighter);
        }
        .card .card-meta i {
            margin-right: 4px;
        }
        .card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--color-secondary);
            margin-top: 12px;
        }
        .card .card-link:hover {
            gap: 10px;
            color: var(--color-primary);
        }

        /* ===== 特色数据 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-accent-light);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }
        .stat-item i {
            font-size: 28px;
            color: var(--color-accent-light);
            margin-bottom: 10px;
        }

        /* ===== 流程/步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            counter-reset: step;
        }
        .step-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            position: relative;
            transition: var(--transition);
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--color-bg-alt);
            line-height: 1;
            transition: var(--transition);
        }
        .step-item:hover::before {
            color: var(--color-accent);
        }
        .step-item .step-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--color-secondary);
            margin-bottom: 16px;
        }
        .step-item h4 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-text-lighter);
        }
        .faq-item .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            color: var(--color-primary);
        }
        .faq-item .faq-question i {
            color: var(--color-text-lighter);
            transition: var(--transition);
            font-size: 14px;
        }
        .faq-item .faq-question.open i {
            transform: rotate(180deg);
            color: var(--color-secondary);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--color-text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-answer.open {
            display: block;
            animation: fadeSlideIn 0.2s ease;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #2c1810 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            color: var(--color-white);
            margin-bottom: 16px;
        }
        .cta-section h2 span {
            color: var(--color-accent-light);
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 540px;
            margin: 0 auto 32px;
            font-size: 1.05rem;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 16px 44px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 17px;
            transition: var(--transition);
        }
        .cta-section .cta-btn:hover {
            background: var(--color-accent-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(212, 160, 23, 0.35);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand h3 {
            font-size: 1.6rem;
            color: var(--color-white);
            margin-bottom: 12px;
        }
        .footer-brand h3 span {
            color: var(--color-accent-light);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 14px;
            margin-top: 18px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 18px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--color-accent);
            color: var(--color-primary);
            transform: translateY(-3px);
        }
        .footer h4 {
            color: var(--color-white);
            font-size: 16px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--color-accent-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--color-accent-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .intro-grid {
                gap: 32px;
            }
        }

        @media (max-width: 820px) {
            .intro-grid {
                grid-template-columns: 1fr;
            }
            .intro-image img {
                height: 260px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }
            .category-hero {
                padding: 60px 0 50px;
                min-height: 280px;
            }
            .section {
                padding: 56px 0;
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .top-bar .container {
                justify-content: center;
                font-size: 12px;
            }
            .top-bar .top-right {
                display: none;
            }
            .nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header .container {
                height: var(--header-height);
            }
            .logo {
                font-size: 20px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 0.95rem;
            }
            .category-hero .btn-primary,
            .category-hero .btn-secondary {
                padding: 12px 28px;
                font-size: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item {
                padding: 24px 12px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .section-header p {
                font-size: 0.95rem;
            }
            .card-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .card .card-body {
                padding: 16px 18px 20px;
            }
            .card .card-img {
                height: 160px;
            }
            .faq-item .faq-question {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 18px 14px;
                font-size: 14px;
            }
            .mega-panel {
                display: none !important;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero {
                padding: 40px 0 36px;
                min-height: 220px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero .hero-badge {
                font-size: 12px;
                padding: 4px 14px;
            }
            .category-hero .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .section {
                padding: 40px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 18px 8px;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card .card-img {
                height: 200px;
            }
            .intro-image img {
                height: 200px;
            }
            .steps-grid {
                gap: 16px;
            }
            .step-item {
                padding: 24px 20px;
            }
            .step-item::before {
                font-size: 2.4rem;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-section .cta-btn {
                padding: 14px 32px;
                font-size: 15px;
            }
            .footer {
                padding: 40px 0 0;
            }
            .faq-list {
                gap: 8px;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

/* roulang page: article */
:root {
    --primary: #8B1A2B;
    --primary-dark: #6B1420;
    --primary-light: #B83A4A;
    --accent: #D4A029;
    --accent-light: #E8C86A;
    --dark: #1A1A2E;
    --dark-soft: #2C2C3E;
    --bg: #F8F5F0;
    --bg-card: #FFFFFF;
    --bg-soft: #F0ECE6;
    --text: #2C2C2C;
    --text-soft: #6B6B6B;
    --text-light: #999;
    --border: #E5DDD4;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow: 0 4px 20px rgba(0,0,0,0.06);
    --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
    --transition: all 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --container: 1200px;
    --nav-height: 72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;}
a{color:var(--primary);text-decoration:none;transition:var(--transition);}
a:hover{color:var(--primary-light);}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-sm);}
ul,ol{list-style:none;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.section{padding:80px 0;}
.section-title{font-size:2rem;font-weight:700;margin-bottom:12px;color:var(--dark);letter-spacing:-0.5px;}
.section-subtitle{font-size:1.05rem;color:var(--text-soft);margin-bottom:48px;max-width:640px;line-height:1.6;}
.text-center{text-align:center;}
.mx-auto{margin-left:auto;margin-right:auto;}

/* ===== Header / Nav ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:var(--transition);height:var(--nav-height);}
.header.scrolled{background:rgba(255,255,255,0.98);box-shadow:0 4px 30px rgba(0,0,0,0.06);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--nav-height);max-width:var(--container);margin:0 auto;padding:0 24px;}
.logo{font-size:1.6rem;font-weight:800;color:var(--dark);letter-spacing:-0.5px;display:flex;align-items:center;gap:6px;}
.logo span{color:var(--primary);}
.logo i{color:var(--accent);font-size:1.3rem;}
.nav{display:flex;align-items:center;gap:8px;}
.nav a{display:flex;align-items:center;gap:6px;padding:10px 18px;border-radius:var(--radius-sm);font-size:0.94rem;font-weight:500;color:var(--text-soft);transition:var(--transition);position:relative;}
.nav a i{font-size:0.9rem;color:var(--text-light);transition:var(--transition);}
.nav a:hover{background:var(--bg-soft);color:var(--primary);}
.nav a:hover i{color:var(--primary);}
.nav a.active{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(139,26,43,0.25);}
.nav a.active i{color:#fff;}
.nav a.nav-cta{background:var(--accent);color:#fff;border-radius:var(--radius-sm);padding:10px 22px;font-weight:600;box-shadow:0 4px 12px rgba(212,160,41,0.3);}
.nav a.nav-cta i{color:#fff;}
.nav a.nav-cta:hover{background:#c4911e;transform:translateY(-2px);box-shadow:0 8px 24px rgba(212,160,41,0.4);}
.mega-trigger{position:relative;}
.mega-trigger > a{padding-right:24px;}
.mega-trigger > a i:last-child{font-size:10px;margin-left:2px;transition:var(--transition);}
.mega-trigger:hover .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-panel{position:absolute;top:calc(100% + 8px);left:0;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-hover);padding:20px 24px;min-width:480px;opacity:0;visibility:hidden;transform:translateY(8px);transition:var(--transition);border:1px solid var(--border);}
.mega-panel-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
.mega-panel-grid a{display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:var(--radius-sm);color:var(--text);font-weight:500;font-size:0.92rem;}
.mega-panel-grid a i{font-size:1.1rem;color:var(--primary);width:24px;text-align:center;}
.mega-panel-grid a:hover{background:var(--bg-soft);color:var(--primary);}
.nav-toggle{display:none;background:none;border:none;font-size:1.6rem;color:var(--dark);cursor:pointer;padding:8px;border-radius:var(--radius-sm);transition:var(--transition);}
.nav-toggle:hover{background:var(--bg-soft);}

/* ===== Article Hero ===== */
.article-hero{position:relative;padding:140px 0 80px;margin-top:var(--nav-height);background:linear-gradient(135deg, var(--dark) 0%, var(--dark-soft) 100%);overflow:hidden;}
.article-hero::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:0.15;filter:blur(2px);}
.article-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(to bottom, rgba(26,26,46,0.7) 0%, rgba(26,26,46,0.9) 100%);}
.article-hero .container{position:relative;z-index:2;}
.article-breadcrumb{display:flex;align-items:center;gap:8px;font-size:0.85rem;color:rgba(255,255,255,0.6);margin-bottom:24px;flex-wrap:wrap;}
.article-breadcrumb a{color:rgba(255,255,255,0.7);}
.article-breadcrumb a:hover{color:#fff;}
.article-breadcrumb span{color:rgba(255,255,255,0.4);}
.article-category{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;padding:6px 16px;border-radius:50px;font-size:0.82rem;font-weight:600;margin-bottom:20px;letter-spacing:0.5px;}
.article-category i{font-size:0.75rem;}
.article-title{font-size:2.6rem;font-weight:800;color:#fff;line-height:1.25;margin-bottom:20px;max-width:880px;letter-spacing:-0.5px;}
.article-meta{display:flex;align-items:center;gap:24px;color:rgba(255,255,255,0.7);font-size:0.92rem;flex-wrap:wrap;}
.article-meta i{margin-right:4px;color:var(--accent);}
.article-meta span{display:flex;align-items:center;gap:4px;}

/* ===== Article Content ===== */
.article-main{padding:60px 0 80px;}
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:48px;}
.article-body{background:var(--bg-card);border-radius:var(--radius);padding:48px;box-shadow:var(--shadow);border:1px solid var(--border);}
.article-body .content{font-size:1.05rem;line-height:1.9;color:var(--text);}
.article-body .content p{margin-bottom:20px;}
.article-body .content h2{font-size:1.6rem;font-weight:700;margin:36px 0 16px;color:var(--dark);}
.article-body .content h3{font-size:1.25rem;font-weight:600;margin:28px 0 12px;color:var(--dark);}
.article-body .content ul,.article-body .content ol{padding-left:24px;margin-bottom:20px;}
.article-body .content li{margin-bottom:8px;list-style:disc;}
.article-body .content img{border-radius:var(--radius-sm);margin:24px 0;width:100%;}
.article-body .content blockquote{border-left:4px solid var(--primary);padding:16px 24px;margin:24px 0;background:var(--bg-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-style:italic;color:var(--text-soft);}
.article-body .content a{color:var(--primary);text-decoration:underline;text-underline-offset:2px;}
.article-body .content a:hover{color:var(--primary-light);}
.article-not-found{text-align:center;padding:80px 40px;}
.article-not-found i{font-size:3rem;color:var(--text-light);margin-bottom:20px;}
.article-not-found h2{font-size:1.6rem;color:var(--dark);margin-bottom:12px;}
.article-not-found p{color:var(--text-soft);margin-bottom:24px;}
.article-not-found a{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;padding:12px 28px;border-radius:var(--radius-sm);font-weight:600;}
.article-not-found a:hover{background:var(--primary-dark);transform:translateY(-2px);}
.article-tags{display:flex;align-items:center;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--border);flex-wrap:wrap;}
.article-tags span{font-weight:600;color:var(--dark);}
.article-tags a{display:inline-flex;align-items:center;gap:4px;background:var(--bg-soft);padding:6px 16px;border-radius:50px;font-size:0.85rem;color:var(--text-soft);font-weight:500;}
.article-tags a:hover{background:var(--primary);color:#fff;}
.article-nav{display:flex;justify-content:space-between;gap:24px;margin-top:40px;padding-top:24px;border-top:1px solid var(--border);}
.article-nav a{display:flex;align-items:center;gap:12px;padding:16px 24px;background:var(--bg-soft);border-radius:var(--radius-sm);flex:1;transition:var(--transition);color:var(--text);font-weight:500;}
.article-nav a:hover{background:var(--primary);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow);}
.article-nav a i{font-size:1rem;}
.article-nav .next{justify-content:flex-end;text-align:right;}

/* ===== Sidebar ===== */
.article-sidebar{display:flex;flex-direction:column;gap:32px;}
.sidebar-card{background:var(--bg-card);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);border:1px solid var(--border);}
.sidebar-card h3{font-size:1.1rem;font-weight:700;color:var(--dark);margin-bottom:20px;display:flex;align-items:center;gap:8px;}
.sidebar-card h3 i{color:var(--accent);}
.sidebar-list{display:flex;flex-direction:column;gap:12px;}
.sidebar-list a{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid var(--border);transition:var(--transition);}
.sidebar-list a:last-child{border-bottom:none;}
.sidebar-list a:hover{transform:translateX(4px);}
.sidebar-list .thumb{width:60px;height:60px;border-radius:8px;object-fit:cover;flex-shrink:0;background:var(--bg-soft);}
.sidebar-list .info{flex:1;min-width:0;}
.sidebar-list .info h4{font-size:0.92rem;font-weight:600;color:var(--text);margin-bottom:4px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.sidebar-list .info span{font-size:0.78rem;color:var(--text-light);}
.sidebar-cta{text-align:center;padding:20px;}
.sidebar-cta h4{font-size:1rem;font-weight:700;color:var(--dark);margin-bottom:8px;}
.sidebar-cta p{font-size:0.88rem;color:var(--text-soft);margin-bottom:16px;}
.sidebar-cta a{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;padding:10px 24px;border-radius:var(--radius-sm);font-weight:600;font-size:0.92rem;}
.sidebar-cta a:hover{background:#c4911e;transform:translateY(-2px);}

/* ===== Related Section ===== */
.related-section{background:var(--bg-soft);padding:80px 0;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border);}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
.related-card img{width:100%;height:200px;object-fit:cover;border-radius:0;}
.related-card .info{padding:20px 24px 24px;}
.related-card .cat{display:inline-flex;align-items:center;gap:4px;font-size:0.75rem;font-weight:600;color:var(--primary);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:8px;}
.related-card .cat i{font-size:0.7rem;}
.related-card h4{font-size:1.05rem;font-weight:700;color:var(--dark);margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-card p{font-size:0.88rem;color:var(--text-soft);margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-card .date{font-size:0.78rem;color:var(--text-light);display:flex;align-items:center;gap:4px;}

/* ===== Footer ===== */
.footer{background:var(--dark);color:rgba(255,255,255,0.7);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:40px;}
.footer-brand h3{font-size:1.5rem;font-weight:800;color:#fff;margin-bottom:12px;}
.footer-brand h3 span{color:var(--accent);}
.footer-brand p{font-size:0.9rem;line-height:1.7;margin-bottom:20px;max-width:360px;}
.footer-social{display:flex;gap:12px;}
.footer-social a{display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.7);font-size:1.1rem;transition:var(--transition);}
.footer-social a:hover{background:var(--accent);color:#fff;transform:translateY(-3px);}
.footer h4{font-size:0.95rem;font-weight:700;color:#fff;margin-bottom:20px;}
.footer ul{display:flex;flex-direction:column;gap:12px;}
.footer ul a{color:rgba(255,255,255,0.6);font-size:0.88rem;transition:var(--transition);display:flex;align-items:center;gap:6px;}
.footer ul a:hover{color:var(--accent);transform:translateX(4px);}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding:24px 0;display:flex;justify-content:space-between;align-items:center;font-size:0.82rem;color:rgba(255,255,255,0.4);flex-wrap:wrap;gap:12px;}
.footer-bottom a{color:rgba(255,255,255,0.5);}
.footer-bottom a:hover{color:var(--accent);}

/* ===== Responsive ===== */
@media(max-width:1024px){
    .article-layout{grid-template-columns:1fr;}
    .article-sidebar{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
    .related-grid{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media(max-width:768px){
    .nav{display:none;position:absolute;top:var(--nav-height);left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg);gap:4px;}
    .nav.open{display:flex;}
    .nav a{padding:12px 16px;width:100%;border-radius:var(--radius-sm);}
    .mega-panel{position:static;opacity:1;visibility:visible;transform:none;min-width:auto;box-shadow:none;padding:12px 16px;border:1px solid var(--border);margin-top:4px;display:none;}
    .mega-trigger.open .mega-panel{display:block;}
    .mega-panel-grid{grid-template-columns:1fr;}
    .nav-toggle{display:block;}
    .article-title{font-size:1.8rem;}
    .article-body{padding:24px;}
    .article-hero{padding:120px 0 60px;}
    .article-nav{flex-direction:column;}
    .article-nav a{text-align:center;justify-content:center;}
    .article-nav .next{text-align:center;justify-content:center;}
    .article-sidebar{grid-template-columns:1fr;}
    .related-grid{grid-template-columns:1fr;}
    .section{padding:48px 0;}
    .footer-grid{grid-template-columns:1fr;gap:32px;}
    .footer-bottom{flex-direction:column;text-align:center;}
}
@media(max-width:520px){
    .article-title{font-size:1.4rem;}
    .article-body{padding:16px;}
    .article-body .content{font-size:0.96rem;}
    .section-title{font-size:1.5rem;}
    .container{padding:0 16px;}
    .logo{font-size:1.3rem;}
    .related-card img{height:160px;}
}