/* roulang page: index */
:root {
            --primary: #1e4fff;
            --primary-dark: #0d37c9;
            --primary-light: #eaf0ff;
            --accent: #ffbb00;
            --accent-dark: #e6a500;
            --dark: #0b1325;
            --dark-2: #141f37;
            --gray-bg: #f5f7fd;
            --gray-light: #eef1f8;
            --border: #dde3ee;
            --text: #1c2333;
            --text-weak: #6a7488;
            --radius: 24px;
            --radius-sm: 14px;
            --shadow-sm: 0 4px 14px rgba(10, 20, 50, 0.06);
            --shadow-md: 0 12px 32px rgba(10, 20, 50, 0.1);
            --shadow-lg: 0 24px 60px rgba(10, 40, 100, 0.14);
            --space: 32px;
            --transition: all 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html,
        body {
            margin: 0;
            padding: 0;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: #fff;
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input,
        textarea {
            font-family: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 12px;
            line-height: 1.35;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: -0.01em;
        }
        h1 {
            font-size: clamp(32px, 4.4vw, 56px);
            font-weight: 900;
        }
        h2 {
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 800;
        }
        h3 {
            font-size: clamp(20px, 2vw, 26px);
            font-weight: 700;
        }
        p {
            margin: 0 0 16px;
            color: var(--text);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* 主按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 60px;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(30, 79, 255, 0.28);
            text-decoration: none;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 14px 34px rgba(30, 79, 255, 0.36);
        }
        .btn-primary:focus {
            outline: 3px solid rgba(30, 79, 255, 0.3);
            outline-offset: 3px;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: 60px;
            padding: 12px 32px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-ghost:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-ghost:focus {
            outline: 3px solid rgba(30, 79, 255, 0.25);
            outline-offset: 3px;
        }

        /* Header */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 0 28px;
            max-width: 1280px;
            margin: 0 auto;
            height: 78px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 900;
            color: var(--dark);
            letter-spacing: -0.02em;
            text-decoration: none;
            white-space: nowrap;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), #4a7cff);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 900;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(30, 79, 255, 0.3);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li {
            margin: 0;
        }
        .nav-menu a {
            display: block;
            padding: 10px 22px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 15px;
            color: var(--text);
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .nav-menu a:hover {
            background: var(--gray-light);
            color: var(--primary);
        }
        .nav-menu a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(30, 79, 255, 0.25);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-left: 12px;
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .header-search {
            position: relative;
            width: 200px;
        }
        .header-search input {
            width: 100%;
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 10px 18px 10px 42px;
            font-size: 14px;
            background: var(--gray-light);
            transition: var(--transition);
            outline: none;
        }
        .header-search input:focus {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 79, 255, 0.12);
        }
        .header-search .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-weak);
            font-size: 14px;
            pointer-events: none;
        }
        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            z-index: 99;
            padding: 28px 0;
        }
        .mega-panel.show {
            display: block;
        }
        .mega-panel-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .mega-card {
            background: var(--gray-bg);
            border-radius: var(--radius-sm);
            padding: 20px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .mega-card:hover {
            border-color: var(--primary);
            background: var(--primary-light);
        }
        .mega-card h5 {
            font-size: 15px;
            margin-bottom: 8px;
            color: var(--dark);
        }
        .mega-card p {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 0;
        }
        .mega-trigger {
            position: relative;
        }
        .mega-trigger:hover .mega-panel {
            display: block;
        }

        /* 移动端 */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--dark);
            padding: 8px;
            border-radius: 10px;
        }
        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 16px 20px;
        }
        .mobile-nav.open {
            display: block;
        }
        .mobile-nav a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            border-bottom: 1px solid var(--gray-light);
            color: var(--text);
            border-radius: 8px;
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .mobile-nav a.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-light);
        }

        /* Hero */
        .hero {
            position: relative;
            background: linear-gradient(135deg, #050e1f 0%, #0e2045 55%, #16336b 100%);
            color: #fff;
            padding: 110px 0 130px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.28;
            z-index: 0;
        }
        .hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(120deg, rgba(5, 14, 31, 0.9) 15%, rgba(5, 14, 31, 0.7) 50%, rgba(5, 14, 31, 0.4) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            max-width: 720px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            color: #e8ecf5;
            margin-bottom: 28px;
        }
        .hero h1 {
            color: #fff;
            font-size: clamp(34px, 5vw, 60px);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero h1 span {
            background: linear-gradient(120deg, #ffffff, #ffd75e);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 620px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-buttons .btn-primary {
            background: var(--accent);
            color: var(--dark);
            box-shadow: 0 10px 30px rgba(255, 187, 0, 0.35);
            border-radius: 60px;
        }
        .hero-buttons .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--dark);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            max-width: 620px;
            margin-top: 56px;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }
        .stat-item {
            display: flex;
            flex-direction: column;
        }
        .stat-item .num {
            font-size: 36px;
            font-weight: 900;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 4px;
        }
        .stat-item .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
        }
        .hero-float {
            position: absolute;
            right: 40px;
            bottom: 40px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(12px);
            border-radius: 20px;
            padding: 18px 26px;
            color: #fff;
            font-size: 14px;
            max-width: 300px;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .hero-float i {
            font-size: 28px;
            color: var(--accent);
        }

        /* 板块通用 */
        .section {
            padding: 100px 0;
        }
        .section-alt {
            background: var(--gray-bg);
        }
        .section-head {
            max-width: 720px;
            margin-bottom: 56px;
        }
        .section-head h2 {
            margin-bottom: 14px;
        }
        .section-head p {
            font-size: 17px;
            color: var(--text-weak);
            margin-bottom: 0;
        }
        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 18px;
        }

        /* 核心说明 */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .intro-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .intro-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }
        .intro-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(10, 20, 50, 0.4));
            pointer-events: none;
        }
        .intro-list {
            margin: 24px 0 0;
            padding: 0;
            list-style: none;
        }
        .intro-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 12px 0;
            border-bottom: 1px solid var(--gray-light);
        }
        .intro-list li:last-child {
            border-bottom: none;
        }
        .intro-list .marker {
            width: 26px;
            height: 26px;
            flex-shrink: 0;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            margin-top: 3px;
        }
        .intro-list strong {
            display: block;
            color: var(--dark);
            font-weight: 600;
            margin-bottom: 2px;
        }
        .intro-list p {
            color: var(--text-weak);
            font-size: 14px;
            margin: 0;
        }

        /* 标签/分类卡片 */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .category-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(30, 79, 255, 0.3);
        }
        .category-card .cover {
            height: 190px;
            overflow: hidden;
            position: relative;
            background: var(--dark-2);
        }
        .category-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .category-card:hover .cover img {
            transform: scale(1.06);
        }
        .category-card .cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(5, 14, 31, 0.55));
        }
        .category-card .cover .tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 30px;
            backdrop-filter: blur(6px);
        }
        .category-card .body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .category-card h3 {
            font-size: 19px;
            margin-bottom: 10px;
        }
        .category-card p {
            font-size: 14px;
            color: var(--text-weak);
            flex: 1;
            margin-bottom: 20px;
        }
        .category-card .more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .category-card .more i {
            transition: transform 0.2s;
            font-size: 12px;
        }
        .category-card .more:hover i {
            transform: translateX(4px);
        }

        /* 内容/资讯列表 */
        .news-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 32px;
        }
        .news-main {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .news-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .news-list li {
            padding: 22px 0;
            border-bottom: 1px solid var(--gray-light);
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 12px 24px;
        }
        .news-list li:last-child {
            border-bottom: none;
        }
        .news-list .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
            transition: var(--transition);
        }
        .news-list a:hover .news-title {
            color: var(--primary);
        }
        .news-list .news-desc {
            font-size: 14px;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.6;
        }
        .news-list .news-meta {
            grid-column: 1 / -1;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-weak);
            align-items: center;
        }
        .news-list .news-meta .label {
            background: var(--gray-light);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text);
        }
        .news-list .news-arrow {
            display: flex;
            align-items: center;
            color: var(--primary);
            font-size: 18px;
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h4 {
            font-size: 17px;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h4 i {
            color: var(--primary);
        }
        .sidebar-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-list li {
            padding: 11px 0;
            border-bottom: 1px solid var(--gray-light);
            font-size: 14px;
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-list a {
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-list a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }
        .sidebar-list .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }
        .hot-tag {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hot-tag span {
            background: var(--gray-bg);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: default;
        }
        .hot-tag span:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* 数据块 */
        .stats-band {
            background: linear-gradient(135deg, var(--dark) 0%, #14274e 100%);
            color: #fff;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-band::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
        }
        .stats-band .container {
            position: relative;
            z-index: 1;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stats-item {
            text-align: center;
            padding: 20px 10px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .stats-item:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.1);
        }
        .stats-item .num {
            font-size: 44px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
        }
        .stats-item .unit {
            font-size: 18px;
            font-weight: 500;
            margin-left: 2px;
            color: #fff;
        }
        .stats-item .label {
            margin-top: 12px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
        }

        /* 流程 */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .process-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .process-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .process-item::before {
            counter-increment: step;
            content: '0' counter(step);
            font-size: 42px;
            font-weight: 900;
            color: var(--primary);
            opacity: 0.12;
            position: absolute;
            top: 18px;
            right: 24px;
            line-height: 1;
        }
        .process-item .icon {
            width: 54px;
            height: 54px;
            border-radius: 16px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }
        .process-item h4 {
            font-size: 17px;
            margin-bottom: 10px;
        }
        .process-item p {
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-section {
            background: var(--gray-bg);
        }
        .faq-grid {
            max-width: 880px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(30, 79, 255, 0.4);
            box-shadow: var(--shadow-md);
        }
        .faq-item summary {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
            outline: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .faq-item[open] summary .icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-item .answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
        }
        .faq-item .answer p:last-child {
            margin-bottom: 0;
        }

        /* CTA */
        .cta-band {
            padding: 100px 0;
            background: #fff;
            position: relative;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, #4a7cff 100%);
            border-radius: var(--radius);
            padding: 64px 48px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }
        .cta-box .container-inner {
            position: relative;
            z-index: 1;
        }
        .cta-box h2 {
            color: #fff;
            font-size: clamp(26px, 3.4vw, 40px);
            margin-bottom: 16px;
        }
        .cta-box p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 17px;
            max-width: 560px;
            margin: 0 auto 36px;
        }
        .cta-box .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }
        .cta-box .btn-primary:hover {
            background: #ffcf33;
            transform: translateY(-3px);
        }

        /* Footer */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 80px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.4fr;
            gap: 50px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .logo:hover {
            color: var(--accent);
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 15px;
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-bottom {
            padding: 28px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin: 0;
        }
        .footer-bottom .links {
            display: flex;
            gap: 24px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .header-search {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .hero-float {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .header-inner {
                height: 64px;
            }
            .nav-menu,
            .header-tools {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .hero {
                padding: 72px 0 88px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-stats {
                gap: 12px;
                margin-top: 36px;
            }
            .stat-item .num {
                font-size: 26px;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 20px;
            }
            .primary-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
            }
            .stat-item .num {
                font-size: 22px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0e2d4a;
            --primary-light: #17487a;
            --accent: #2f8cf7;
            --accent-light: #eaf3ff;
            --gold: #f5a524;
            --bg-body: #f2f6fb;
            --bg-deep: #081c33;
            --text: #1a2838;
            --text-soft: #4c627a;
            --text-light: #8ba1b8;
            --border: #dbe5f0;
            --white: #ffffff;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 10px 30px rgba(8, 28, 51, 0.08);
            --shadow-lg: 0 22px 50px rgba(8, 28, 51, 0.14);
            --space: 88px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

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

        ul {
            list-style: none;
        }

        button,
        input {
            font-family: inherit;
        }

        .grid-container {
            max-width: 1200px;
        }

        /* ===== 按钮 ===== */
        .btn-primary,
        .btn-ghost,
        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 999px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all 0.28s ease;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 20px rgba(47, 140, 247, 0.28);
        }

        .btn-primary:hover {
            background: #1c78e0;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(47, 140, 247, 0.36);
            color: #fff;
        }

        .btn-ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-light {
            background: var(--white);
            color: var(--primary);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
        }

        .btn-light:hover {
            transform: translateY(-2px);
            color: var(--accent);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.18);
        }

        /* ===== 头部导航 ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 20px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), var(--primary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 6px 14px rgba(47, 140, 247, 0.35);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
        }

        .nav-menu > li {
            position: relative;
        }

        .nav-menu > li > a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-soft);
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }

        .nav-menu > li > a:hover {
            color: var(--primary);
            background: var(--accent-light);
        }

        .nav-menu > li > a.active {
            color: var(--accent);
            background: var(--accent-light);
            border-color: rgba(47, 140, 247, 0.15);
        }

        .arrow-icon {
            font-size: 9px;
            margin-left: 2px;
            opacity: 0.7;
        }

        .has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 14px);
            left: -180px;
            width: 620px;
            background: #fff;
            border-radius: 18px;
            box-shadow: var(--shadow-lg);
            padding: 24px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all 0.28s ease;
            border: 1px solid var(--border);
        }

        .mega-panel::before {
            content: "";
            position: absolute;
            top: -16px;
            left: 0;
            right: 0;
            height: 18px;
        }

        .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 22px;
        }

        .mega-title {
            font-size: 13px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .mega-title i {
            color: var(--accent);
        }

        .mega-col a {
            display: block;
            font-size: 14px;
            color: var(--text-soft);
            padding: 7px 0;
            border-bottom: 1px dashed #edf2f8;
            transition: all 0.2s ease;
        }

        .mega-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }

        .mega-note {
            background: var(--bg-body);
            border-radius: 14px;
            padding: 16px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .mega-note p {
            font-size: 13px;
            color: var(--text-soft);
            line-height: 1.6;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 20px;
            border-radius: 999px;
            transition: all 0.25s ease;
        }

        .header-cta:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            padding: 10px;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        /* ===== 分类页 Hero ===== */
        .category-hero {
            position: relative;
            padding: 110px 0 95px;
            overflow: hidden;
            background: var(--bg-deep);
        }

        .category-hero .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.45;
        }

        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(8, 28, 51, 0.92) 15%, rgba(8, 28, 51, 0.65) 55%, rgba(8, 28, 51, 0.4) 100%);
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 22px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb i {
            font-size: 9px;
        }

        .category-hero h1 {
            font-size: clamp(34px, 5vw, 56px);
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

        .category-hero .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* ===== 通用 Section ===== */
        .section {
            padding: clamp(55px, 8vw, 88px) 0;
        }

        .section-alt {
            background: var(--white);
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 46px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            background: var(--accent-light);
            padding: 7px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: clamp(26px, 3.6vw, 38px);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-soft);
            line-height: 1.75;
        }

        /* ===== 数据概览 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .stat-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
        }

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

        .stat-num {
            font-size: 38px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent), var(--primary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-num span {
            font-size: 18px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-soft);
            font-weight: 600;
        }

        /* ===== 玩法分类卡片 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .guide-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all 0.32s ease;
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(47, 140, 247, 0.25);
        }

        .guide-card .card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

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

        .guide-card .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(8, 28, 51, 0.25));
        }

        .card-body {
            padding: 24px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body .tag {
            align-self: flex-start;
            margin-bottom: 12px;
        }

        .card-body h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
            margin-bottom: 18px;
            flex: 1;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            transition: gap 0.25s ease;
        }

        .card-link:hover {
            gap: 10px;
            color: var(--primary);
        }

        /* ===== 标签 ===== */
        .tag,
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 999px;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(47, 140, 247, 0.18);
            line-height: 1.5;
        }

        /* ===== 文章列表 ===== */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .article-item {
            display: grid;
            grid-template-columns: 150px 1fr;
            gap: 22px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px;
            transition: all 0.3s ease;
        }

        .article-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: rgba(47, 140, 247, 0.2);
        }

        .article-item .article-img {
            width: 150px;
            height: 110px;
            border-radius: 12px;
            overflow: hidden;
            background: var(--accent-light);
        }

        .article-item .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .article-meta .tag {
            font-size: 11px;
            padding: 4px 10px;
        }

        .article-info h3 {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .article-info h3 a {
            color: inherit;
        }

        .article-info h3 a:hover {
            color: var(--accent);
        }

        .article-info p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.65;
        }

        /* ===== 入门步骤 ===== */
        .steps-section {
            background: var(--bg-deep);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .steps-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(8, 28, 51, 0.88);
        }

        .steps-section .grid-container {
            position: relative;
            z-index: 1;
        }

        .steps-section .section-tag {
            background: rgba(255, 255, 255, 0.1);
            color: #bcd6f0;
            border-color: rgba(255, 255, 255, 0.15);
        }

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

        .steps-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .step-card {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.13);
            border-radius: var(--radius);
            padding: 30px 24px;
            transition: all 0.3s ease;
            backdrop-filter: blur(6px);
        }

        .step-card:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-5px);
            border-color: rgba(255, 255, 255, 0.25);
        }

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--gold), #ffc36d);
            color: #1a1a1a;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            margin-bottom: 18px;
            box-shadow: 0 8px 18px rgba(245, 165, 36, 0.25);
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.68);
            line-height: 1.65;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item.active {
            border-color: rgba(47, 140, 247, 0.3);
            box-shadow: var(--shadow);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            user-select: none;
        }

        .faq-question i {
            font-size: 14px;
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
        }

        .cta-box {
            background: linear-gradient(120deg, var(--primary), var(--primary-light));
            border-radius: 24px;
            padding: 52px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            position: relative;
            overflow: hidden;
        }

        .cta-box::after {
            content: "\f1ce";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: -20px;
            bottom: -50px;
            font-size: 180px;
            opacity: 0.06;
            color: #fff;
        }

        .cta-box .cta-text h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-box .cta-text p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            padding: 56px 0 0;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            background: linear-gradient(135deg, var(--accent), #5aa1f5);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: all 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 22px 0 26px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom .links {
            display: flex;
            gap: 18px;
        }

        .footer-bottom .links a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom .links a:hover {
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .mega-panel {
                left: -80px;
                width: 580px;
            }

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

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

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

        @media (max-width: 768px) {
            .header-inner {
                height: 68px;
            }

            .menu-toggle {
                display: flex;
            }

            .nav-wrapper {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 18px 22px 22px;
                box-shadow: 0 20px 40px rgba(8, 28, 51, 0.12);
                transform: translateY(-130%);
                transition: transform 0.3s ease;
                border-bottom: 1px solid var(--border);
                gap: 14px;
            }

            .nav-wrapper.open {
                transform: translateY(0);
            }

            .nav-menu {
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                gap: 4px;
            }

            .nav-menu > li > a {
                padding: 12px 14px;
                width: 100%;
            }

            .mega-panel {
                position: static;
                width: 100%;
                box-shadow: none;
                padding: 0;
                opacity: 1;
                visibility: visible;
                transform: none;
                border: none;
                margin-top: 6px;
                background: var(--bg-body);
                border-radius: 12px;
                padding: 12px;
                width: auto;
                left: auto;
            }

            .mega-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .mega-note {
                display: none;
            }

            .header-actions {
                width: 100%;
            }

            .header-cta {
                width: 100%;
                justify-content: center;
            }

            .category-hero {
                padding: 70px 0 60px;
            }

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

            .stats-grid,
            .card-grid,
            .steps-grid {
                grid-template-columns: 1fr;
            }

            .article-item {
                grid-template-columns: 100px 1fr;
                padding: 12px;
            }

            .article-item .article-img {
                width: 100px;
                height: 90px;
            }

            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 34px 26px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            :root {
                --space: 56px;
            }

            .logo {
                font-size: 17px;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }

            .category-hero h1 {
                font-size: 30px;
            }

            .category-hero .hero-desc {
                font-size: 15px;
            }

            .section {
                padding: 46px 0;
            }

            .section-head {
                margin-bottom: 30px;
            }

            .article-item {
                grid-template-columns: 1fr;
            }

            .article-item .article-img {
                width: 100%;
                height: 150px;
            }
        }

        /* 焦点状态：无障碍 */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(47, 140, 247, 0.5);
            outline-offset: 2px;
        }

/* roulang page: article */
:root{
  --primary:#12356f;
  --primary-dark:#0b2447;
  --primary-light:#eaf1fb;
  --accent:#f0a135;
  --accent-dark:#d98a1f;
  --bg:#f5f7fb;
  --bg-white:#ffffff;
  --text:#17233c;
  --text-muted:#69789a;
  --border:#dfe5f0;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(18,53,111,0.06);
  --shadow-md:0 10px 30px rgba(18,53,111,0.10);
  --shadow-lg:0 20px 50px rgba(18,53,111,0.14);
  --transition:.25s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font-family:inherit}
h1,h2,h3,h4,h5,p{margin:0}
ul,ol{margin:0;padding:0}

.container,.grid-container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border:2px solid transparent;border-radius:999px;background:var(--primary);color:#fff;font-size:.95rem;font-weight:600;cursor:pointer;transition:all var(--transition);line-height:1.4;box-shadow:0 6px 18px rgba(18,53,111,0.18)}
.btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 24px rgba(18,53,111,0.24)}
.btn:focus-visible{outline:3px solid rgba(18,53,111,.35);outline-offset:3px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(240,161,53,.3)}
.btn-primary:hover{background:var(--accent-dark)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;box-shadow:none}
.btn-outline:hover{background:#fff;color:var(--primary);border-color:#fff}
.btn-lg{padding:16px 38px;font-size:1rem}

/* Header */
.site-header{position:sticky;top:0;z-index:999;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:1.28rem;font-weight:800;color:var(--primary);letter-spacing:.2px}
.logo-icon{width:40px;height:40px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.88rem;font-weight:900;box-shadow:0 6px 16px rgba(18,53,111,.28)}
.main-nav{margin-left:auto}
.nav-menu{display:flex;align-items:center;gap:6px;list-style:none}
.nav-menu a{display:inline-block;padding:9px 18px;border-radius:999px;color:var(--text-muted);font-weight:500;font-size:.95rem;transition:all var(--transition)}
.nav-menu a:hover,.nav-menu a:focus{background:var(--primary-light);color:var(--primary)}
.nav-menu a.active{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(18,53,111,.25)}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:10px;background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;transition:all var(--transition)}
.nav-toggle span{width:20px;height:2px;background:var(--primary);border-radius:4px;transition:all .25s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 文章 Hero */
.article-hero{position:relative;padding:72px 0 64px;background:#0f1b3d}
.article-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,36,71,.95) 0%,rgba(18,53,111,.86) 55%,rgba(18,53,111,.72) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;z-index:0}
.article-hero .grid-container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;color:rgba(255,255,255,.68);font-size:.88rem;margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.82);transition:opacity var(--transition)}
.breadcrumb a:hover{opacity:1;color:#fff}
.breadcrumb .divider{opacity:.5}
.category-badge{display:inline-block;background:var(--accent);color:#fff;font-size:.88rem;font-weight:600;padding:6px 18px;border-radius:999px;margin-bottom:16px;box-shadow:0 4px 12px rgba(0,0,0,.15)}
.article-hero h1{max-width:860px;margin:0 0 16px;font-size:2.4rem;line-height:1.35;font-weight:800;color:#fff;letter-spacing:.5px}
.article-summary{max-width:660px;font-size:1.06rem;color:rgba(255,255,255,.8);line-height:1.8}
.article-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:24px;color:rgba(255,255,255,.72);font-size:.9rem}
.article-meta span{display:inline-flex;align-items:center}
.article-meta i{color:var(--accent);margin-right:6px}

/* 文章主体 */
.article-main{padding:60px 0 70px}
.article-content-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:42px;box-shadow:var(--shadow-sm)}
.article-content{font-size:1.05rem;color:#24304a;word-break:break-word}
.article-content>*:first-child{margin-top:0}
.article-content p{margin:1.1em 0;line-height:1.9}
.article-content h2,.article-content h3{color:var(--primary);font-weight:700;letter-spacing:.3px}
.article-content h2{font-size:1.55rem;margin:1.5em 0 .6em;padding-left:14px;border-left:4px solid var(--accent)}
.article-content h3{font-size:1.22rem;margin:1.3em 0 .5em}
.article-content ul,.article-content ol{margin:1em 0 1em 1.5em}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin:.5em 0}
.article-content img{border-radius:14px;margin:1.5em 0;box-shadow:var(--shadow-md)}
.article-content blockquote{margin:1.5em 0;padding:18px 24px;background:var(--primary-light);border-left:4px solid var(--accent);border-radius:0 14px 14px 0;color:#33415e}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.article-content a:hover{color:var(--accent-dark)}
.article-content table{width:100%;border-collapse:collapse;margin:1.4em 0}
.article-content table th,.article-content table td{padding:10px 16px;border:1px solid var(--border);text-align:left}
.article-content table th{background:var(--primary-light);font-weight:600;color:var(--primary)}
.article-content code,.article-content pre{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-content pre{background:#0f1b3d;color:#e6edf7;padding:20px 22px;border-radius:14px;overflow-x:auto;line-height:1.6}
.article-content hr{border:none;border-top:1px solid var(--border);margin:2em 0}

.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:999px;background:var(--primary-light);color:var(--primary);font-size:.84rem;font-weight:500;transition:all var(--transition)}
.tag:hover{background:var(--primary);color:#fff}
.tag i{color:var(--accent)}

/* 侧边栏 */
.article-sidebar{display:flex;flex-direction:column;gap:24px}
@media(min-width:1025px){
  .article-sidebar{position:sticky;top:100px}
}
.sidebar-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm)}
.sidebar-title{display:flex;align-items:center;gap:8px;font-size:1.02rem;font-weight:700;color:var(--primary);margin-bottom:16px}
.sidebar-title i{color:var(--accent)}
.sidebar-meta-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.sidebar-meta-list li{display:flex;justify-content:space-between;align-items:center;font-size:.92rem;border-bottom:1px dashed var(--border);padding-bottom:10px}
.sidebar-meta-list li:last-child{border-bottom:none;padding-bottom:0}
.sidebar-meta-list span{color:var(--text-muted)}
.sidebar-meta-list strong{color:var(--primary);font-weight:600;text-align:right}
.sidebar-list{list-style:none;display:flex;flex-direction:column;gap:4px}
.sidebar-list li a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text-muted);font-size:.92rem;transition:all var(--transition)}
.sidebar-list li a i{color:var(--accent);font-size:.75rem}
.sidebar-list li a:hover{background:var(--primary-light);color:var(--primary);transform:translateX(4px)}
.sidebar-entry{display:block}
.sidebar-entry img{width:100%;height:150px;object-fit:cover;border-radius:14px;margin-bottom:14px}
.sidebar-entry-title{font-weight:700;color:var(--primary);font-size:1rem;margin-bottom:6px}
.sidebar-entry p{font-size:.88rem;color:var(--text-muted);line-height:1.6}

/* 相关资讯 */
.related-section{padding:68px 0 76px;background:#fff;border-top:1px solid var(--border)}
.section-header{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-bottom:32px}
.section-header h2{margin:0;font-size:1.7rem;font-weight:800;color:var(--primary)}
.section-header p{margin:4px 0 0;color:var(--text-muted)}
.more-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:.92rem;transition:gap var(--transition)}
.more-link:hover{gap:10px;color:var(--accent-dark)}
.related-card{height:100%;display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:all .3s ease;box-shadow:var(--shadow-sm)}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.related-card img{width:100%;height:184px;object-fit:cover}
.related-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.related-card h3{font-size:1.02rem;line-height:1.5;color:var(--primary);margin:0}
.related-card h3 a:hover{color:var(--accent-dark)}
.related-card .meta{display:flex;gap:12px;font-size:.84rem;color:var(--text-muted);margin-top:auto}
.empty-tip{padding:30px 0;color:var(--text-muted);text-align:center;background:var(--bg);border-radius:14px}

/* CTA */
.cta-section{padding:78px 0;background:linear-gradient(130deg,#0b2447,#12356f 65%,#163d7e);color:#fff}
.cta-inner{max-width:760px;margin:0 auto;text-align:center}
.cta-inner h2{margin:0 0 14px;font-size:2rem;font-weight:800}
.cta-inner p{color:rgba(255,255,255,.82);font-size:1.04rem;margin-bottom:32px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* 未找到 */
.not-found-section{padding:110px 0 130px}
.not-found-card{max-width:540px;margin:0 auto;text-align:center;background:#fff;border:1px solid var(--border);border-radius:24px;padding:54px 44px;box-shadow:var(--shadow-md)}
.not-found-code{display:block;font-size:4.6rem;font-weight:900;color:#e3ebf7;line-height:1;margin-bottom:16px;letter-spacing:2px}
.not-found-card h1{font-size:1.6rem;color:var(--primary);font-weight:800;margin:0 0 12px}
.not-found-card p{color:var(--text-muted);margin-bottom:28px}

/* 页脚 */
.site-footer{background:#0d1a33;color:rgba(255,255,255,.72);padding:60px 0 26px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:44px;margin-bottom:44px}
.footer-brand .logo{color:#fff;font-size:1.22rem}
.footer-brand .logo-icon{background:#fff;color:var(--primary)}
.footer-brand p{max-width:380px;margin-top:16px;font-size:.9rem;line-height:1.85;color:rgba(255,255,255,.62)}
.footer-title{color:#fff;font-size:1rem;font-weight:700;margin-bottom:16px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.64);font-size:.9rem;transition:all var(--transition)}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid rgba(255,255,255,.1);padding-top:22px;font-size:.84rem;color:rgba(255,255,255,.5)}
.footer-bottom .links{display:flex;gap:20px}
.footer-bottom .links a{color:rgba(255,255,255,.5);transition:color var(--transition)}
.footer-bottom .links a:hover{color:var(--accent)}
.hot-tag{display:flex;flex-wrap:wrap;gap:10px}
.hot-tag span{display:inline-block;padding:5px 14px;border-radius:999px;font-size:.8rem}

/* 响应式 */
@media(max-width:1024px){
  .article-sidebar{flex-direction:row;flex-wrap:wrap;position:static}
  .sidebar-card{flex:1 1 calc(50% - 12px)}
  .related-card img{height:200px}
}
@media(max-width:768px){
  .header-inner{height:64px}
  .nav-toggle{display:flex}
  .main-nav{position:fixed;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);padding:14px 20px 20px;box-shadow:var(--shadow-md);transform:translateY(-130%);transition:transform .3s ease;visibility:hidden;opacity:0;z-index:99}
  .main-nav.open{transform:translateY(0);visibility:visible;opacity:1}
  .nav-menu{flex-direction:column;gap:4px}
  .nav-menu a{width:100%}
  .article-hero{padding:54px 0 48px}
  .article-hero h1{font-size:1.7rem}
  .article-content-card{padding:26px 22px}
  .article-main{padding:44px 0 52px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .cta-section{padding:60px 0}
  .cta-inner h2{font-size:1.5rem}
  .not-found-card{padding:40px 24px}
}
@media(max-width:520px){
  .article-meta{flex-direction:column;align-items:flex-start;gap:10px}
  .article-hero h1{font-size:1.4rem}
  .related-card img{height:200px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .sidebar-card{flex:1 1 100%}
  .section-header{align-items:flex-start}
}