/* roulang page: index */
/* ============ 设计变量 ============ */
        :root {
            --primary: #4F46E5;
            --primary-dark: #4338CA;
            --primary-light: #E0E7FF;
            --secondary: #F59E0B;
            --bg-body: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-dark: #0F172A;
            --bg-gray: #F1F5F9;
            --text-main: #1E293B;
            --text-weak: #64748B;
            --border: #E2E8F0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.10);
            --spacing: 24px;
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover {
            color: var(--primary-dark);
        }

        ul,
        ol {
            list-style: none;
        }

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

        input,
        textarea {
            font-family: inherit;
        }

        /* ============ 工具类 ============ */
        .container {
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .section-padding {
            padding: 84px 0;
        }

        .section-center {
            text-align: center;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--text-weak);
            max-width: 680px;
            margin: 0 auto 56px;
            line-height: 1.6;
        }

        .text-gradient {
            background: linear-gradient(135deg, var(--primary), #8B5CF6);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* ============ 按钮 ============ */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            border: 2px solid var(--primary);
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(79, 70, 229, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(79, 70, 229, 0.4);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-main);
            padding: 13px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            border: 2px solid var(--border);
            transition: var(--transition);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary:focus-visible {
            outline: 3px solid rgba(79, 70, 229, 0.3);
            outline-offset: 2px;
        }

        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--primary);
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(255, 255, 255, 0.2);
        }

        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25);
        }

        /* ============ 标签徽章 ============ */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .badge-amber {
            background: #FEF3C7;
            color: #D97706;
        }

        .tag {
            display: inline-block;
            background: var(--bg-gray);
            color: var(--text-weak);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--border);
        }

        /* ============ Header / Nav ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 6px rgba(15, 23, 42, 0.03);
        }

        .header-inner {
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), #7C3AED);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            box-shadow: var(--shadow-sm);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link {
            padding: 10px 20px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 15px;
            color: var(--text-main);
            transition: var(--transition);
            position: relative;
        }

        .nav-link:hover {
            background: var(--bg-gray);
            color: var(--primary);
        }

        .nav-link.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .dropdown-wrap {
            position: relative;
        }

        .dropdown-trigger {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .dropdown-menu {
            position: absolute;
            top: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%) translateY(10px);
            min-width: 400px;
            background: var(--bg-white);
            border-radius: 16px;
            box-shadow: var(--shadow-lg);
            padding: 20px;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .dropdown-wrap:hover .dropdown-menu,
        .dropdown-wrap:focus-within .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .dropdown-menu::before {
            content: '';
            position: absolute;
            top: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 0;
            border-left: 8px solid transparent;
            border-right: 8px solid transparent;
            border-bottom: 8px solid var(--border);
        }

        .dropdown-menu::after {
            content: '';
            position: absolute;
            top: -7px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 0;
            border-left: 7px solid transparent;
            border-right: 7px solid transparent;
            border-bottom: 7px solid var(--bg-white);
        }

        .dropdown-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .dropdown-card {
            padding: 16px;
            border-radius: 12px;
            background: var(--bg-gray);
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .dropdown-card:hover {
            border-color: var(--primary-light);
            background: var(--primary-light);
        }

        .dropdown-card .dc-title {
            font-weight: 600;
            font-size: 15px;
            margin-bottom: 4px;
            color: var(--text-main);
        }

        .dropdown-card .dc-desc {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.4;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-search {
            position: relative;
        }

        .header-search input {
            border: 1px solid var(--border);
            border-radius: 30px;
            padding: 9px 18px 9px 42px;
            font-size: 14px;
            width: 180px;
            background: var(--bg-gray);
            transition: var(--transition);
            outline: none;
        }

        .header-search input:focus {
            width: 220px;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

        .header-search i {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-weak);
            font-size: 14px;
        }

        .search-result {
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            width: 300px;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            padding: 16px;
            display: none;
        }

        .search-result a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px;
            border-radius: 8px;
            font-size: 14px;
            color: var(--text-main);
        }

        .search-result a:hover {
            background: var(--bg-gray);
        }

        .mobile-menu-toggle {
            display: none;
            font-size: 22px;
            color: var(--text-main);
            padding: 6px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
        }

        .mobile-menu-toggle:hover {
            background: var(--bg-gray);
        }

        /* ============ Hero ============ */
        .hero-section {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 140px 0 100px;
            color: #fff;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, 0.86) 0%, rgba(15, 23, 42, 0.65) 45%, rgba(15, 23, 42, 0.30) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.24);
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 28px;
            backdrop-filter: blur(8px);
        }

        .hero-title {
            font-size: 52px;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -1.5px;
            margin-bottom: 20px;
        }

        .hero-title .gradient-text {
            background: linear-gradient(90deg, #A5B4FC, #FDE68A);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 36px;
            max-width: 600px;
        }

        .hero-buttons {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            gap: 48px;
            margin-top: 56px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }

        .hero-stats .stat-num {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 4px;
        }

        .hero-stats .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        /* ============ 卡片通用 ============ */
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            transition: var(--transition);
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(79, 70, 229, 0.3);
        }

        .icon-badge {
            width: 52px;
            height: 52px;
            background: var(--primary-light);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 16px;
        }

        /* ============ 平台特色 ============ */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 28px;
            transition: var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(79, 70, 229, 0.3);
        }

        .feature-card .fc-icon {
            font-size: 24px;
            color: var(--primary);
            width: 52px;
            height: 52px;
            background: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 5px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        /* ============ 分类板块 ============ */
        .category-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }

        .category-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.3), transparent 70%);
            border-radius: 50%;
        }

        .category-section .section-title {
            color: #fff;
        }

        .category-section .section-subtitle {
            color: rgba(255, 255, 255, 0.6);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }

        .category-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            overflow: hidden;
            backdrop-filter: blur(10px);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-6px);
        }

        .category-card-media {
            position: relative;
            height: 220px;
            overflow: hidden;
        }

        .category-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .category-card:hover .category-card-media img {
            transform: scale(1.05);
        }

        .category-card-media::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(0deg, rgba(15, 23, 42, 0.4), transparent 50%);
        }

        .category-card-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-card-body h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .category-card-body p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            line-height: 1.6;
            flex: 1;
        }

        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #A5B4FC;
            font-weight: 600;
            font-size: 14px;
            margin-top: 18px;
            transition: var(--transition);
        }

        .category-link:hover {
            color: #fff;
            gap: 10px;
        }

        .category-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 3;
            background: rgba(255, 255, 255, 0.9);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            backdrop-filter: blur(4px);
        }

        /* ============ 资讯列表 ============ */
        .news-section {
            background: var(--bg-body);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .news-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 28px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .news-meta .meta-cat {
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 16px;
            font-weight: 600;
            font-size: 12px;
        }

        .news-meta .meta-date {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .news-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-main);
        }

        .news-title a {
            color: inherit;
        }

        .news-title a:hover {
            color: var(--primary);
        }

        .news-excerpt {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
            margin-top: auto;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px;
            background: var(--bg-white);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            color: var(--text-weak);
            font-size: 15px;
        }

        /* ============ 数据统计 ============ */
        .stats-section {
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            position: relative;
            color: #fff;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 23, 42, 0.82);
        }

        .stats-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item {
            padding: 24px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 4px;
            background: linear-gradient(90deg, #FDE68A, #A5B4FC);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ============ 内容推荐 ============ */
        .featured-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            grid-template-rows: 1fr 1fr;
            gap: 24px;
            margin-top: 48px;
        }

        .featured-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 260px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .featured-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .featured-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .featured-card:hover img {
            transform: scale(1.04);
        }

        .featured-card .f-overlay {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 20px;
            background: linear-gradient(0deg, rgba(15, 23, 42, 0.75), transparent);
            color: #fff;
        }

        .featured-card .f-tag {
            display: inline-block;
            font-size: 12px;
            background: var(--secondary);
            color: #fff;
            padding: 3px 10px;
            border-radius: 14px;
            margin-bottom: 6px;
        }

        .featured-card .f-title {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
        }

        .featured-card-main {
            grid-row: 1 / -1;
            min-height: 540px;
        }

        .featured-card-main .f-title {
            font-size: 24px;
        }

        /* ============ 流程 ============ */
        .process-section {
            background: var(--bg-white);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: 48px;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .process-step-num {
            width: 56px;
            height: 56px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        .process-step::after {
            content: '→';
            position: absolute;
            top: 18px;
            right: -28px;
            font-size: 24px;
            color: var(--primary);
            font-weight: 300;
        }

        .process-step:last-child::after {
            display: none;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg-gray);
        }

        .faq-grid {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(79, 70, 229, 0.3);
        }

        .faq-question {
            padding: 24px 28px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .faq-question i {
            color: var(--text-weak);
            transition: var(--transition);
            font-size: 18px;
        }

        .faq-item.open .faq-question i {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 24px;
        }

        /* ============ CTA ============ */
        .cta-section {
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(79, 70, 229, 0.9);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            color: #fff;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .cta-content p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            margin-top: 12px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-title {
            font-size: 16px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-links a {
            display: block;
            padding: 6px 0;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            transform: translateX(4px);
        }

        .footer-news-item {
            font-size: 14px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-news-item:last-child {
            border-bottom: none;
        }

        .footer-news-item time {
            display: block;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
            margin-top: 2px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .section-padding {
                padding: 64px 0;
            }

            .hero-title {
                font-size: 44px;
            }

            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .featured-grid {
                grid-template-columns: 1fr 1fr;
            }

            .featured-card-main {
                grid-row: auto;
                min-height: 320px;
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .process-step::after {
                display: none;
            }

            .stats-inner {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

            .header-search input {
                width: 150px;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                flex-direction: column;
                align-items: stretch;
                padding: 12px;
                gap: 4px;
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link {
                display: block;
                padding: 12px 20px;
                border-radius: 10px;
            }

            .dropdown-menu {
                position: static;
                transform: none;
                opacity: 1;
                visibility: visible;
                min-width: 100%;
                margin-top: 8px;
                border: none;
                box-shadow: none;
                padding: 8px 0 8px 16px;
                display: none;
            }

            .dropdown-wrap:hover .dropdown-menu,
            .dropdown-wrap:focus-within .dropdown-menu {
                display: block;
            }

            .dropdown-menu::before,
            .dropdown-menu::after {
                display: none;
            }

            .header-search {
                display: none;
            }

            .hero-section {
                padding: 100px 0 70px;
            }

            .hero-title {
                font-size: 36px;
            }

            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
                margin-top: 36px;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: flex-start;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }

            .category-grid {
                grid-template-columns: 1fr;
            }

            .news-grid {
                grid-template-columns: 1fr;
            }

            .featured-grid {
                grid-template-columns: 1fr;
            }

            .featured-card-main {
                min-height: 260px;
            }

            .process-grid {
                grid-template-columns: 1fr;
            }

            .section-title {
                font-size: 26px;
            }

            .cta-content h2 {
                font-size: 28px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .cta-buttons .btn-primary,
            .cta-buttons .btn-light {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .section-padding {
                padding: 48px 0;
            }

            .hero-section {
                background-position: 70% center;
            }

            .hero-title {
                font-size: 30px;
                letter-spacing: -0.8px;
            }

            .hero-desc {
                font-size: 16px;
            }

            .logo-text {
                font-size: 17px;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }

            .header-inner {
                height: 68px;
            }

            .dropdown-grid {
                grid-template-columns: 1fr;
            }

            .stats-inner {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-number {
                font-size: 26px;
            }
        }

        /* ===== 可访问性焦点 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(79, 70, 229, 0.4);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: article */
:root {
            --bg: #0B1120;
            --bg-light: #0F172A;
            --card: #16213E;
            --card-hover: #1E293B;
            --border: rgba(255, 255, 255, 0.08);
            --text: #E2E8F0;
            --text-light: #94A3B8;
            --text-muted: #64748B;
            --primary: #4F46E5;
            --primary-hover: #6366F1;
            --accent: #A5B4FC;
            --success: #34D399;
            --warning: #FBBF24;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
            --transition: 0.3s ease;
            --header-height: 72px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background var(--transition), box-shadow var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 17, 32, 0.85);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-hover));
            border-radius: 12px;
            font-size: 20px;
            color: #fff;
            box-shadow: 0 0 20px rgba(79, 70, 229, 0.4);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            cursor: pointer;
            transition: all var(--transition);
            background: transparent;
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .nav-link i {
            font-size: 14px;
            opacity: 0.8;
        }
        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.08);
            transform: translateY(-1px);
        }
        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.25), rgba(99, 102, 241, 0.15));
            border-color: rgba(79, 70, 229, 0.35);
        }
        .dropdown-wrap {
            position: relative;
        }
        .dropdown-trigger {
            user-select: none;
        }
        .dropdown-menu {
            position: absolute;
            top: calc(100% + 8px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 520px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            padding: 16px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.25s ease;
            z-index: 100;
        }
        .dropdown-wrap:hover .dropdown-menu,
        .dropdown-trigger:focus + .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .dropdown-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .dropdown-card {
            display: block;
            padding: 14px 16px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid transparent;
            transition: all var(--transition);
        }
        .dropdown-card:hover {
            background: rgba(79, 70, 229, 0.12);
            border-color: rgba(79, 70, 229, 0.3);
            transform: translateX(3px);
        }
        .dc-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .dc-title i {
            color: var(--accent);
        }
        .dc-desc {
            font-size: 13px;
            color: var(--text-light);
            padding-left: 22px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .search-toggle,
        .mobile-toggle {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            color: var(--text-light);
            font-size: 16px;
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .search-toggle:hover,
        .mobile-toggle:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border);
        }
        .mobile-toggle {
            display: none;
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(11, 17, 32, 0.92), rgba(15, 23, 42, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 60px 0 48px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .breadcrumb a {
            color: var(--accent);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .sep {
            font-size: 12px;
            opacity: 0.6;
        }
        .breadcrumb .current {
            color: var(--text-muted);
        }
        .article-heading {
            max-width: 860px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-hover));
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 16px;
            box-shadow: 0 0 20px rgba(79, 70, 229, 0.3);
        }
        .article-heading h1 {
            font-size: 32px;
            line-height: 1.4;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: var(--text-light);
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            color: var(--accent);
        }

        /* ===== 文章主体 ===== */
        .article-body-section {
            padding: 48px 0 60px;
            background: var(--bg);
        }
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 40px;
            align-items: start;
        }
        .article-main {
            min-width: 0;
        }
        .article-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 40px 44px;
            box-shadow: var(--shadow);
        }
        .article-content {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(226, 232, 240, 0.92);
        }
        .article-content p {
            margin-bottom: 20px;
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 32px 0 16px;
            color: #fff;
            border-left: 4px solid var(--primary);
            padding-left: 16px;
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 28px 0 12px;
            color: #fff;
        }
        .article-content img {
            border-radius: 12px;
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-content ul,
        .article-content ol {
            margin: 16px 0 20px 24px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(79, 70, 229, 0.08);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 12px 12px 0;
            color: var(--accent);
            font-style: italic;
        }
        .article-content a {
            color: var(--accent);
            border-bottom: 1px solid rgba(165, 180, 252, 0.3);
        }
        .article-content a:hover {
            color: #fff;
            border-bottom-color: #fff;
        }

        /* 文章页脚 */
        .article-footer {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
        }
        .article-tags > i {
            color: var(--accent);
            margin-right: 4px;
        }
        .article-tags a {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            border-radius: 20px;
            color: var(--text-light);
            font-size: 13px;
            transition: all var(--transition);
        }
        .article-tags a:hover {
            background: rgba(79, 70, 229, 0.15);
            border-color: rgba(79, 70, 229, 0.4);
            color: #fff;
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-light);
        }
        .article-share a {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .article-share a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* 内容未找到 */
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found i {
            font-size: 48px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .article-not-found h2 {
            font-size: 28px;
            margin-bottom: 12px;
            color: #fff;
        }
        .article-not-found p {
            color: var(--text-light);
            margin-bottom: 28px;
        }
        .article-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-light);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: linear-gradient(135deg, var(--primary), var(--primary-hover));
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: 12px;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(79, 70, 229, 0.35);
        }
        .btn-primary:hover {
            box-shadow: 0 6px 30px rgba(99, 102, 241, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== 侧边栏 ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: calc(var(--header-height) + 24px);
        }
        .sidebar-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
        }
        .sidebar-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            position: relative;
        }
        .sidebar-title::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 48px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--primary-hover));
            border-radius: 3px;
        }
        .sidebar-link {
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            transition: all var(--transition);
        }
        .sidebar-link:last-child {
            border-bottom: none;
        }
        .sidebar-link:hover {
            padding-left: 8px;
        }
        .sl-date {
            display: block;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }
        .sl-title {
            display: block;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.5;
            transition: color var(--transition);
        }
        .sidebar-link:hover .sl-title {
            color: var(--accent);
        }
        .sidebar-cat {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            margin-bottom: 8px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid transparent;
            border-radius: 10px;
            font-size: 14px;
            color: var(--text-light);
            transition: all var(--transition);
        }
        .sidebar-cat:last-child {
            margin-bottom: 0;
        }
        .sidebar-cat:hover {
            background: rgba(79, 70, 229, 0.12);
            border-color: rgba(79, 70, 229, 0.3);
            color: #fff;
            transform: translateX(3px);
        }
        .sidebar-cat i {
            color: var(--accent);
        }
        .sidebar-img {
            border-radius: 10px;
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-light);
            border-top: 1px solid var(--border);
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-overline {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.4;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(79, 70, 229, 0.3);
            box-shadow: var(--shadow-lg);
        }
        .related-img {
            aspect-ratio: 16/10;
            overflow: hidden;
        }
        .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .related-img img {
            transform: scale(1.05);
        }
        .related-body {
            padding: 20px 22px;
        }
        .related-date {
            font-size: 12px;
            color: var(--text-muted);
            display: block;
            margin-bottom: 8px;
        }
        .related-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition);
        }
        .related-card:hover .related-body h3 {
            color: var(--accent);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 60px 0;
            background: linear-gradient(135deg, rgba(11, 17, 32, 0.88), rgba(15, 23, 42, 0.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-top: 1px solid var(--border);
        }
        .cta-inner {
            text-align: center;
            max-width: 680px;
        }
        .cta-inner h2 {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-inner p {
            color: var(--text-light);
            margin-bottom: 28px;
            font-size: 16px;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: 12px;
            transition: all var(--transition);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070C18;
            border-top: 1px solid var(--border);
            padding-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: all var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-links a i {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.3);
        }
        .footer-news-item {
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-news-item:last-child {
            border-bottom: none;
        }
        .footer-news-item a {
            display: block;
            font-size: 14px;
            line-height: 1.5;
            margin-bottom: 4px;
            transition: color var(--transition);
        }
        .footer-news-item a:hover {
            color: var(--accent) !important;
        }
        .footer-news-item time {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom {
            background: rgba(0, 0, 0, 0.3);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
        }
        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom-inner a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
            margin: 0 4px;
        }
        .footer-bottom-inner a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar-card {
                flex: 1;
                min-width: 260px;
            }
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .main-nav {
                gap: 2px;
            }
            .nav-link {
                padding: 10px 12px;
                font-size: 14px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .mobile-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-light);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s ease;
                z-index: 999;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-link {
                padding: 14px 16px;
                border-radius: 10px;
            }
            .dropdown-menu {
                position: static;
                transform: none;
                width: 100%;
                opacity: 1;
                visibility: visible;
                box-shadow: none;
                margin-top: 4px;
                padding: 12px;
                display: none;
                background: rgba(255, 255, 255, 0.03);
            }
            .dropdown-wrap:hover .dropdown-menu {
                transform: none;
            }
            .dropdown-wrap.open .dropdown-menu {
                display: block;
            }
            .dropdown-grid {
                grid-template-columns: 1fr;
            }
            .article-hero {
                padding: 40px 0 32px;
            }
            .article-heading h1 {
                font-size: 24px;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .article-card {
                padding: 24px 20px;
            }
            .article-content {
                font-size: 15px;
                line-height: 1.85;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom-inner {
                flex-direction: column;
                text-align: center;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .logo-text {
                font-size: 17px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }
            .header-actions {
                gap: 4px;
            }
            .search-toggle {
                display: none;
            }
            .article-heading h1 {
                font-size: 22px;
            }
            .article-meta {
                flex-direction: column;
                gap: 6px;
            }
            .article-card {
                padding: 20px 16px;
            }
            .article-footer {
                flex-direction: column;
                align-items: flex-start;
            }
            .sidebar {
                flex-direction: column;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .btn-primary,
            .btn-outline {
                justify-content: center;
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #6366F1;
            --primary-hover: #4F46E5;
            --secondary: #A5B4FC;
            --violet: #8B5CF6;
            --amber: #F59E0B;
            --success: #10B981;
            --dark: #0F172A;
            --dark-2: #1E293B;
            --bg-light: #F8FAFC;
            --card-bg: #FFFFFF;
            --text-main: #0F172A;
            --text-weak: #64748B;
            --border: #E2E8F0;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 4px 24px rgba(15,23,42,.06);
            --shadow-hover: 0 16px 36px rgba(15,23,42,.1);
            --transition: .25s;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-main);
            background: #fff;
            -webkit-font-smoothing: antialiased;
            padding-top: 72px;
        }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; }
        button { font-family: inherit; cursor: pointer; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4 { line-height: 1.3; }

        .container { width: 100%; max-width: 1200px; padding: 0 24px; margin: 0 auto; }

        /* Header */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1000;
            background: rgba(15,23,42,.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255,255,255,.06);
        }
        .header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 72px; }
        .logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .logo-icon {
            width: 38px; height: 38px;
            display: flex; align-items: center; justify-content: center;
            background: linear-gradient(135deg, #6366F1, #8B5CF6);
            border-radius: 10px;
            color: #fff; font-size: 18px;
            box-shadow: 0 4px 14px rgba(99,102,241,.35);
        }
        .logo-text { font-size: 20px; font-weight: 700; color: #fff; letter-spacing: .5px; white-space: nowrap; }

        .main-nav { display: flex; align-items: center; gap: 4px; }
        .nav-link {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 10px 16px; border-radius: 999px;
            color: rgba(255,255,255,.82);
            font-size: 15px; font-weight: 500;
            transition: all var(--transition);
            border: 0; background: transparent;
            white-space: nowrap;
        }
        .nav-link i { font-size: 14px; }
        .nav-link:hover { color: #fff; background: rgba(255,255,255,.08); }
        .nav-link:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }
        .nav-link.active { background: rgba(99,102,241,.22); color: var(--secondary); }

        .dropdown-wrap { position: relative; }
        .dropdown-menu {
            position: absolute;
            top: calc(100% + 14px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 560px;
            background: #fff;
            border-radius: 16px;
            padding: 14px;
            box-shadow: 0 24px 60px rgba(15,23,42,.25);
            opacity: 0;
            visibility: hidden;
            transition: all .22s ease;
            z-index: 200;
        }
        .dropdown-wrap:hover .dropdown-menu,
        .dropdown-wrap:focus-within .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .dropdown-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
        .dropdown-card { display: block; padding: 12px; border-radius: 10px; transition: background .2s; }
        .dropdown-card:hover { background: var(--bg-light); }
        .dc-title { font-weight: 600; color: var(--text-main); font-size: 14px; margin-bottom: 4px; }
        .dc-title i { color: var(--primary); margin-right: 4px; width: 16px; }
        .dc-desc { font-size: 12px; color: var(--text-weak); }

        .nav-toggle {
            display: none;
            width: 42px; height: 42px;
            align-items: center; justify-content: center;
            background: rgba(255,255,255,.08);
            border: 1px solid rgba(255,255,255,.1);
            border-radius: 10px;
            color: #fff; font-size: 18px;
            transition: all var(--transition);
        }
        .nav-toggle:hover { background: rgba(255,255,255,.16); }

        /* Page Hero */
        .page-hero {
            position: relative;
            padding: 160px 0 100px;
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }
        .page-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,.94) 0%, rgba(15,23,42,.72) 42%, rgba(99,102,241,.42) 100%);
        }
        .page-hero .container { position: relative; z-index: 2; }
        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,.6); margin-bottom: 22px; }
        .breadcrumb a { color: rgba(255,255,255,.6); transition: color .2s; }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb span { opacity: .7; }
        .page-hero h1 { font-size: 42px; font-weight: 800; letter-spacing: 1px; margin-bottom: 16px; }
        .page-hero .hero-desc {
            font-size: 17px; line-height: 1.8;
            color: rgba(255,255,255,.82);
            max-width: 680px;
            margin-bottom: 28px;
        }
        .hero-stats { display: flex; gap: 44px; margin: 34px 0 38px; flex-wrap: wrap; }
        .stat-item strong { display: block; font-size: 32px; font-weight: 800; color: var(--secondary); }
        .stat-item span { font-size: 13px; color: rgba(255,255,255,.6); }
        .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

        /* Buttons */
        .btn-primary {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 13px 30px; border-radius: var(--radius-btn);
            background: linear-gradient(135deg, #6366F1, #8B5CF6);
            color: #fff; font-size: 15px; font-weight: 600;
            border: 0;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 8px 20px rgba(99,102,241,.35);
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(99,102,241,.45); }
        .btn-primary:focus-visible { outline: 3px solid rgba(165,180,252,.6); outline-offset: 2px; }
        .btn-outline {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 13px 30px; border-radius: var(--radius-btn);
            background: rgba(255,255,255,.1);
            border: 1px solid rgba(255,255,255,.25);
            color: #fff; font-size: 15px; font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-outline:hover { background: rgba(255,255,255,.18); border-color: rgba(255,255,255,.45); transform: translateY(-2px); }
        .btn-light {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 13px 28px; border-radius: var(--radius-btn);
            background: #fff; color: var(--text-main);
            font-size: 15px; font-weight: 700;
            transition: all var(--transition);
        }
        .btn-light:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(255,255,255,.25); }

        /* Sections */
        .section { padding: 80px 0; }
        .section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
        .section-head h2 { font-size: 32px; font-weight: 800; color: var(--text-main); margin-bottom: 12px; }
        .section-head p { font-size: 16px; color: var(--text-weak); line-height: 1.7; }
        .section-tag {
            display: inline-block; padding: 6px 14px; border-radius: 999px;
            background: rgba(99,102,241,.1);
            color: var(--primary); font-size: 13px; font-weight: 600;
            margin-bottom: 12px;
        }

        /* Tabs */
        .tabs-section { padding: 48px 0 0; background: #fff; }
        .topic-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
        .topic-tab {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 10px 18px; border-radius: 999px;
            background: #fff; border: 1px solid var(--border);
            color: #475569; font-size: 14px; font-weight: 500;
            transition: all var(--transition);
        }
        .topic-tab:hover {
            border-color: var(--primary); color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(99,102,241,.15);
        }
        .topic-tab i { font-size: 13px; }

        /* Guide Cards */
        .guide-cards-section { background: var(--bg-light); padding: 40px 0 80px; }
        .guide-search {
            display: flex; max-width: 460px; margin: 0 auto 40px;
            background: #fff; border: 1px solid var(--border);
            border-radius: 999px; padding: 6px;
            box-shadow: 0 4px 16px rgba(15,23,42,.06);
            transition: border-color .2s, box-shadow .2s;
        }
        .guide-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(99,102,241,.12); }
        .guide-search input {
            flex: 1; border: 0; outline: 0; background: transparent;
            padding: 8px 16px; font-size: 14px; color: var(--text-main);
            min-width: 0;
        }
        .guide-search button {
            border: 0; background: linear-gradient(135deg, #6366F1, #8B5CF6);
            color: #fff; padding: 10px 22px; border-radius: 999px;
            font-size: 14px; font-weight: 600;
            transition: opacity .2s;
            white-space: nowrap;
        }
        .guide-search button:hover { opacity: .9; }

        .guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .guide-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all .3s;
            box-shadow: var(--shadow-card);
        }
        .guide-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: transparent; }
        .guide-card-icon {
            width: 48px; height: 48px;
            display: flex; align-items: center; justify-content: center;
            border-radius: 12px;
            background: linear-gradient(135deg, #6366F1, #8B5CF6);
            color: #fff; font-size: 20px;
            margin-bottom: 18px;
        }
        .guide-card-icon.green { background: linear-gradient(135deg, #10B981, #34D399); }
        .guide-card-icon.amber { background: linear-gradient(135deg, #F59E0B, #FBBF24); }
        .guide-card-icon.rose { background: linear-gradient(135deg, #F43F5E, #FB7185); }
        .guide-card-icon.sky { background: linear-gradient(135deg, #0EA5E9, #38BDF8); }
        .guide-card-icon.violet { background: linear-gradient(135deg, #8B5CF6, #A78BFA); }
        .guide-card h3 { font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 10px; }
        .guide-card p { font-size: 14px; line-height: 1.75; color: var(--text-weak); margin-bottom: 16px; }
        .guide-card-link {
            font-size: 14px; font-weight: 600; color: var(--primary);
            display: inline-flex; align-items: center; gap: 6px;
            transition: color .2s;
        }
        .guide-card-link i { transition: transform .2s; }
        .guide-card-link:hover { color: var(--violet); }
        .guide-card-link:hover i { transform: translateX(4px); }

        /* Hot Articles */
        .hot-section { background: #fff; }
        .article-list { max-width: 880px; margin: 0 auto; display: flex; flex-direction: column; gap: 20px; }
        .article-item {
            display: flex; gap: 20px; background: #fff;
            border: 1px solid var(--border); border-radius: var(--radius-card);
            padding: 20px; transition: all .3s;
        }
        .article-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: transparent; }
        .article-thumb { width: 180px; height: 120px; border-radius: 12px; overflow: hidden; flex-shrink: 0; background-size: cover; background-position: center; }
        .article-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
        .article-item:hover .article-thumb img { transform: scale(1.06); }
        .article-info { flex: 1; display: flex; flex-direction: column; justify-content: center; }
        .article-meta { display: flex; align-items: center; gap: 14px; font-size: 12px; color: #94A3B8; margin-bottom: 8px; flex-wrap: wrap; }
        .article-tag {
            display: inline-block; padding: 3px 10px; border-radius: 999px;
            background: rgba(99,102,241,.1); color: var(--primary);
            font-size: 12px; font-weight: 600;
        }
        .article-title { font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 6px; transition: color .2s; }
        .article-item:hover .article-title { color: var(--primary); }
        .article-excerpt { font-size: 14px; color: var(--text-weak); line-height: 1.7; }
        .article-link { margin-top: 8px; font-size: 14px; color: var(--primary); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }

        /* Feature Block */
        .feature-block {
            position: relative;
            padding: 100px 0;
            background-size: cover;
            background-position: center;
            color: #fff;
        }
        .feature-block::before {
            content: '';
            position: absolute; inset: 0;
            background: linear-gradient(90deg, rgba(15,23,42,.95) 0%, rgba(15,23,42,.74) 50%, rgba(99,102,241,.5) 100%);
        }
        .feature-block .container { position: relative; z-index: 2; }
        .feature-content { max-width: 640px; }
        .feature-content .section-tag { background: rgba(255,255,255,.14); color: #fff; }
        .feature-content h2 { font-size: 34px; font-weight: 800; margin: 16px 0; line-height: 1.3; }
        .feature-content p { font-size: 16px; line-height: 1.8; color: rgba(255,255,255,.82); margin-bottom: 20px; }
        .feature-list { display: flex; flex-direction: column; gap: 14px; margin: 24px 0 32px; }
        .feature-list li { display: flex; align-items: center; gap: 12px; font-size: 15px; color: rgba(255,255,255,.92); }
        .feature-list li i { color: var(--secondary); font-size: 17px; }

        /* Steps */
        .steps-section { background: var(--bg-light); }
        .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .step-card {
            position: relative; border-radius: var(--radius-card);
            background: #fff; border: 1px solid var(--border);
            padding: 32px 24px; text-align: center;
            transition: all .3s;
        }
        .step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .step-num {
            width: 44px; height: 44px; border-radius: 50%; margin: 0 auto 16px;
            display: flex; align-items: center; justify-content: center;
            background: linear-gradient(135deg, #6366F1, #8B5CF6); color: #fff;
            font-size: 18px; font-weight: 800;
            box-shadow: 0 6px 16px rgba(99,102,241,.3);
        }
        .step-title { font-size: 17px; font-weight: 700; color: var(--text-main); margin-bottom: 8px; }
        .step-desc { font-size: 14px; color: var(--text-weak); line-height: 1.7; }

        /* FAQ */
        .faq-section { background: #fff; }
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
        .faq-item {
            background: #fff; border: 1px solid var(--border);
            border-radius: 14px; overflow: hidden;
            transition: all .25s;
        }
        .faq-item[open] { box-shadow: 0 8px 24px rgba(15,23,42,.08); border-color: rgba(99,102,241,.3); }
        .faq-item summary {
            padding: 18px 24px; font-size: 16px; font-weight: 600;
            color: var(--text-main); cursor: pointer;
            display: flex; justify-content: space-between; align-items: center; gap: 12px;
            list-style: none; user-select: none;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900; font-size: 13px;
            color: var(--primary);
            transition: transform .25s;
            flex-shrink: 0;
        }
        .faq-item[open] summary::after { transform: rotate(180deg); }
        .faq-item .faq-answer { padding: 0 24px 18px; font-size: 15px; color: var(--text-weak); line-height: 1.8; }

        /* CTA */
        .cta-section {
            padding: 90px 0;
            background: linear-gradient(135deg, #4F46E5, #7C3AED 60%, #A855F7);
            color: #fff; text-align: center;
        }
        .cta-section h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; }
        .cta-section p { max-width: 620px; margin: 0 auto 32px; font-size: 16px; opacity: .85; line-height: 1.8; }
        .cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

        /* Footer */
        .site-footer { background: var(--dark); color: rgba(255,255,255,.7); padding: 70px 0 0; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.3fr; gap: 40px; padding-bottom: 50px; border-bottom: 1px solid rgba(255,255,255,.08); }
        .footer-brand .logo { margin-bottom: 16px; }
        .footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.6); margin: 16px 0 20px; max-width: 320px; }
        .footer-social { display: flex; gap: 10px; }
        .footer-social a {
            width: 36px; height: 36px;
            display: flex; align-items: center; justify-content: center;
            background: rgba(255,255,255,.08);
            border-radius: 10px;
            color: rgba(255,255,255,.7);
            font-size: 15px;
            transition: all .2s;
        }
        .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .footer-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 16px; }
        .footer-links { display: flex; flex-direction: column; gap: 10px; }
        .footer-links a { color: rgba(255,255,255,.65); font-size: 14px; transition: all .2s; display: inline-flex; align-items: center; gap: 6px; }
        .footer-links a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-news-item { margin-bottom: 12px; }
        .footer-news-item a { color: rgba(255,255,255,.75); font-size: 13px; line-height: 1.6; display: block; transition: color .2s; }
        .footer-news-item a:hover { color: var(--secondary); }
        .footer-news-item time { font-size: 12px; color: rgba(255,255,255,.4); }
        .footer-bottom { padding: 24px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.4); }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-toggle { display: flex; }
            .main-nav {
                display: none;
                position: fixed;
                top: 72px; left: 0; right: 0;
                background: rgba(15,23,42,.97);
                backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                gap: 6px;
                max-height: calc(100vh - 72px);
                overflow-y: auto;
                border-bottom: 1px solid rgba(255,255,255,.08);
                box-shadow: 0 20px 40px rgba(0,0,0,.3);
            }
            .main-nav.nav-open { display: flex; }
            .nav-link { border-radius: 8px; padding: 12px 16px; }
            .dropdown-menu {
                position: static;
                transform: none;
                opacity: 1; visibility: visible;
                box-shadow: none;
                background: rgba(255,255,255,.05);
                border-radius: 12px;
                margin-top: 8px;
                width: auto;
                padding: 8px;
            }
            .dropdown-grid { grid-template-columns: 1fr; gap: 2px; }
            .dropdown-card { padding: 10px; }
            .dropdown-card:hover { background: rgba(255,255,255,.08); }
            .dc-title { color: #fff; font-size: 14px; }
            .dc-desc { color: rgba(255,255,255,.55); }
            .guide-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
            .page-hero { padding: 130px 0 80px; }
            .page-hero h1 { font-size: 34px; }
        }

        @media (max-width: 768px) {
            .page-hero { padding: 120px 0 70px; }
            .page-hero h1 { font-size: 28px; }
            .hero-desc { font-size: 15px; }
            .hero-stats { gap: 24px; }
            .stat-item strong { font-size: 26px; }
            .guide-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .article-item { flex-direction: column; }
            .article-thumb { width: 100%; height: 180px; }
            .section { padding: 60px 0; }
            .section-head h2 { font-size: 26px; }
            .feature-block { padding: 70px 0; }
            .feature-content h2 { font-size: 27px; }
            .cta-section h2 { font-size: 26px; }
            .logo-text { font-size: 17px; }
            .header-inner { height: 64px; }
            body { padding-top: 64px; }
            .main-nav { top: 64px; max-height: calc(100vh - 64px); }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .page-hero h1 { font-size: 24px; }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline { width: 100%; justify-content: center; }
            .topic-tabs { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; padding-bottom: 8px; -webkit-overflow-scrolling: touch; }
            .topic-tab { flex-shrink: 0; }
            .guide-card { padding: 22px; }
            .cta-actions .btn-light,
            .cta-actions .btn-outline { width: 100%; justify-content: center; }
            .footer-grid { grid-template-columns: 1fr; }
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --primary-light: #A5B4FC;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --bg: #0b0e1a;
            --bg-deep: #070a14;
            --bg-card: #141b30;
            --bg-card-hover: #1a2238;
            --text: #e6eaf2;
            --text-muted: #8b94a7;
            --text-light: #b8c0d0;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(165, 180, 252, 0.3);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 26px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.45);
            --transition: all .3s ease;
            --container: 1200px;
            --header-h: 76px;
        }

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

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

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
        }

        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        button { font-family: inherit; cursor: pointer; border: none; background: none; }
        input, textarea { font-family: inherit; }
        ul, ol { list-style: none; }
        ::selection { background: rgba(99, 102, 241, .5); color: #fff; }

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

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 14, 26, .85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(7, 10, 20, .95);
            box-shadow: var(--shadow);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 14px;
            font-size: 20px;
            color: #fff;
            box-shadow: 0 4px 16px rgba(99, 102, 241, .35);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: .5px;
            color: var(--text);
            white-space: nowrap;
            line-height: 1.2;
        }
        .logo-text span { color: var(--primary-light); }

        /* ===== Nav ===== */
        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            margin-left: auto;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }
        .nav-link i { font-size: 14px; }
        .nav-link:hover {
            background: rgba(99, 102, 241, .12);
            color: var(--primary-light);
        }
        .nav-link.active {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 18px rgba(99, 102, 241, .35);
        }

        /* Dropdown */
        .dropdown-wrap { position: relative; }
        .dropdown-trigger {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .dropdown-trigger:hover {
            background: rgba(99, 102, 241, .12);
            color: var(--primary-light);
        }
        .dropdown-menu {
            position: absolute;
            top: calc(100% + 14px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            min-width: 520px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-lg);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
        }
        .dropdown-wrap:hover .dropdown-menu,
        .dropdown-wrap:focus-within .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .dropdown-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .dropdown-card {
            display: block;
            padding: 16px;
            background: rgba(255, 255, 255, .03);
            border: 1px solid transparent;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .dropdown-card:hover {
            background: rgba(99, 102, 241, .1);
            border-color: var(--border-hover);
            transform: translateY(-2px);
        }
        .dc-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .dc-title i { color: var(--primary-light); font-size: 14px; }
        .dc-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* Nav Toggle */
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(99, 102, 241, .15);
            border-color: var(--border-hover);
        }

        /* ===== Hero / Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 160px 0 100px;
            background: linear-gradient(135deg, rgba(7, 10, 20, .9) 0%, rgba(11, 14, 26, .85) 50%, rgba(20, 27, 48, .9) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(99, 102, 241, .2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            background: rgba(99, 102, 241, .15);
            border: 1px solid var(--border-hover);
            border-radius: 100px;
            font-size: 13px;
            color: var(--primary-light);
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: .5px;
        }
        .banner-badge i { font-size: 12px; }
        .banner-title {
            font-size: 52px;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 18px;
            letter-spacing: 1px;
            background: linear-gradient(135deg, #fff 30%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .banner-desc {
            font-size: 18px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 640px;
        }
        .banner-meta {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .banner-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .banner-meta-item i {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, .06);
            border-radius: 10px;
            color: var(--primary-light);
            font-size: 14px;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--text-muted); }
        .breadcrumb a:hover { color: var(--primary-light); }
        .breadcrumb i { font-size: 10px; color: var(--text-muted); }
        .breadcrumb .current { color: var(--primary-light); }

        /* ===== Section base ===== */
        .section {
            padding: 90px 0;
            position: relative;
        }
        .section-alt { background: var(--bg-deep); }
        .section-head {
            max-width: 640px;
            margin-bottom: 50px;
        }
        .section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(99, 102, 241, .1);
            border: 1px solid rgba(99, 102, 241, .25);
            border-radius: 100px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: var(--text);
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== Overview Cards ===== */
        .overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .overview-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 26px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .overview-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .overview-card:hover {
            transform: translateY(-6px);
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            box-shadow: var(--shadow);
        }
        .overview-card:hover::before { opacity: 1; }
        .overview-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(99, 102, 241, .2), rgba(99, 102, 241, .05));
            border: 1px solid rgba(99, 102, 241, .2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary-light);
            margin-bottom: 20px;
            transition: var(--transition);
        }
        .overview-card:hover .overview-icon {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 8px 24px rgba(99, 102, 241, .3);
        }
        .overview-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .overview-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== News Section ===== */
        .news-section { padding: 90px 0; }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 40px;
            align-items: start;
        }
        .news-list-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .news-list-title::after {
            content: '';
            flex: 1;
            height: 1px;
            background: var(--border);
        }
        .news-card {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .news-card:last-child { border-bottom: none; }
        .news-card:hover .news-card-title { color: var(--primary-light); }
        .news-tag {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            flex-shrink: 0;
            gap: 4px;
            flex-direction: column;
        }
        .news-tag-badge {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 8px;
            background: rgba(99, 102, 241, .12);
            color: var(--primary-light);
            border: 1px solid rgba(99, 102, 241, .2);
            text-align: center;
        }
        .news-tag-date {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .news-card-body { flex: 1; }
        .news-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 6px;
            transition: var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 8px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .news-card-meta i { font-size: 12px; margin-right: 4px; }
        .news-card-meta a { color: var(--text-muted); }
        .news-card-meta a:hover { color: var(--primary-light); }

        /* Sidebar */
        .sidebar { position: sticky; top: 100px; display: flex; flex-direction: column; gap: 24px; }
        .sidebar-widget {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px;
        }
        .widget-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
        }
        .widget-title i { color: var(--primary-light); font-size: 15px; }
        .widget-title::after {
            content: '';
            flex: 1;
            height: 1px;
            background: var(--border);
        }
        .widget-hot-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .widget-hot-item {
            display: flex;
            gap: 12px;
            padding: 10px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .02);
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .widget-hot-item:hover {
            background: rgba(99, 102, 241, .08);
            border-color: var(--border-hover);
        }
        .widget-hot-num {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(99, 102, 241, .15);
            color: var(--primary-light);
            font-size: 13px;
            font-weight: 700;
        }
        .widget-hot-num.top { background: linear-gradient(135deg, var(--accent), #f97316); color: #fff; }
        .widget-hot-link {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.5;
            flex: 1;
            transition: var(--transition);
        }
        .widget-hot-link:hover { color: var(--primary-light); }

        /* Tags */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid var(--border);
            border-radius: 100px;
            font-size: 13px;
            color: var(--text-light);
            transition: var(--transition);
        }
        .tag-chip i { font-size: 11px; color: var(--text-muted); }
        .tag-chip:hover {
            background: rgba(99, 102, 241, .12);
            border-color: var(--border-hover);
            color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* ===== Featured ===== */
        .featured-section { padding: 90px 0; background: var(--bg-deep); }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            transform: translateY(-8px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-lg);
        }
        .featured-img {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .featured-card:hover .featured-img img { transform: scale(1.06); }
        .featured-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 14px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(11, 14, 26, .8);
            backdrop-filter: blur(8px);
            color: var(--accent-light);
            border: 1px solid rgba(245, 158, 11, .3);
        }
        .featured-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
        .featured-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
            transition: var(--transition);
        }
        .featured-card:hover .featured-title { color: var(--primary-light); }
        .featured-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .featured-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }
        .featured-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .featured-meta i { font-size: 12px; }

        /* ===== Stats ===== */
        .stats-section {
            padding: 90px 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 10, 20, .92), rgba(11, 14, 26, .88));
        }
        .stats-inner { position: relative; z-index: 2; }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stat-item {
            text-align: center;
            padding: 40px 24px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius);
            backdrop-filter: blur(12px);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, .08);
            border-color: var(--border-hover);
            transform: translateY(-4px);
        }
        .stat-num {
            font-size: 44px;
            font-weight: 900;
            color: var(--primary-light);
            line-height: 1.2;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            letter-spacing: 1px;
        }

        /* ===== FAQ ===== */
        .faq-section { padding: 90px 0; }
        .faq-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }
        .faq-q {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            display: flex;
            gap: 12px;
            align-items: flex-start;
            margin-bottom: 10px;
        }
        .faq-q i {
            color: var(--primary-light);
            font-size: 14px;
            margin-top: 5px;
            flex-shrink: 0;
        }
        .faq-a {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            padding-left: 26px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(99, 102, 241, .15), rgba(245, 158, 11, .1)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            position: relative;
            border-top: 1px solid var(--border);
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-title {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            color: #fff;
        }
        .cta-desc {
            font-size: 16px;
            color: var(--text-light);
            margin-bottom: 30px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.2;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 6px 24px rgba(99, 102, 241, .35);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(99, 102, 241, .5);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--border-hover);
            color: var(--primary-light);
        }
        .btn-outline:hover {
            background: rgba(99, 102, 241, .1);
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }
        .btn-light {
            background: #fff;
            color: #111827;
            box-shadow: 0 6px 24px rgba(255, 255, 255, .2);
        }
        .btn-light:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(255, 255, 255, .3);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding: 70px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 50px;
            border-bottom: 1px solid var(--border);
        }
        .footer-brand .logo { margin-bottom: 16px; }
        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 16px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: rgba(99, 102, 241, .15);
            border-color: var(--border-hover);
            color: var(--primary-light);
            transform: translateY(-3px);
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text);
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-links a i { font-size: 11px; color: var(--primary-light); }
        .footer-links a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-news-item {
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }
        .footer-news-item:last-child { border-bottom: none; }
        .footer-news-item a {
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
            display: block;
            line-height: 1.5;
            margin-bottom: 4px;
            transition: var(--transition);
        }
        .footer-news-item a:hover { color: var(--primary-light); }
        .footer-news-item time {
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--primary-light); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .overview-grid { grid-template-columns: repeat(2, 1fr); }
            .featured-grid { grid-template-columns: repeat(2, 1fr); }
            .news-layout { grid-template-columns: 1fr 300px; gap: 30px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .banner-title { font-size: 42px; }
            .dropdown-menu { min-width: 440px; }
        }

        @media (max-width: 768px) {
            .site-header { height: 62px; }
            .header-inner { height: 62px; }
            .logo-text { font-size: 17px; }
            .logo-icon { width: 38px; height: 38px; font-size: 16px; border-radius: 12px; }

            .nav-toggle { display: flex; }

            .main-nav {
                position: fixed;
                top: 62px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(7, 10, 20, .98);
                border-bottom: 1px solid var(--border);
                padding: 20px;
                gap: 6px;
                transform: translateY(-130%);
                transition: transform .4s ease;
                z-index: 998;
                box-shadow: var(--shadow-lg);
                max-height: calc(100vh - 62px);
                overflow-y: auto;
            }
            .main-nav.open { transform: translateY(0); }
            .nav-link {
                padding: 14px 16px;
                font-size: 15px;
                width: 100%;
            }
            .dropdown-trigger { width: 100%; padding: 14px 16px; }
            .dropdown-menu {
                position: static;
                transform: none;
                min-width: 0;
                width: 100%;
                box-shadow: none;
                opacity: 1;
                visibility: visible;
                margin-top: 8px;
                padding: 12px;
                background: rgba(255, 255, 255, .03);
                border-radius: 14px;
            }
            .dropdown-wrap:hover .dropdown-menu { transform: none; }
            .dropdown-grid { grid-template-columns: 1fr; gap: 8px; }
            .dropdown-card { padding: 12px; }

            .page-banner { padding: 130px 0 70px; }
            .banner-title { font-size: 34px; }
            .banner-desc { font-size: 16px; }

            .section { padding: 60px 0; }
            .news-section { padding: 60px 0; }
            .featured-section { padding: 60px 0; }
            .stats-section { padding: 60px 0; }
            .faq-section { padding: 60px 0; }
            .cta-section { padding: 60px 0; }

            .section-title { font-size: 28px; }
            .news-layout { grid-template-columns: 1fr; }
            .sidebar { position: static; }
            .faq-layout { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-num { font-size: 34px; }
            .cta-title { font-size: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .overview-grid { grid-template-columns: 1fr; }
            .featured-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .banner-title { font-size: 28px; }
            .banner-meta { flex-direction: column; gap: 12px; }
            .btn { width: 100%; justify-content: center; }
            .cta-buttons { flex-direction: column; width: 100%; }
            .news-card { flex-direction: column; gap: 12px; }
            .news-tag { flex-direction: row; justify-content: flex-start; gap: 10px; width: 100%; }
        }

        /* ===== Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 10px; }
        ::-webkit-scrollbar-track { background: var(--bg-deep); }
        ::-webkit-scrollbar-thumb { background: rgba(99, 102, 241, .3); border-radius: 10px; }
        ::-webkit-scrollbar-thumb:hover { background: rgba(99, 102, 241, .5); }