/* roulang page: index */
:root {
            --primary: #6C5CE7;
            --primary-dark: #5343C8;
            --primary-light: #8A7CF0;
            --accent: #FF9F1C;
            --accent-light: #FFB84D;
            --bg-dark: #0B1020;
            --bg-darker: #060A14;
            --bg-card: #141C30;
            --bg-card-alt: #1A2440;
            --text-light: #F4F6FF;
            --text-body: #B8C0D4;
            --text-muted: #7A8398;
            --border-default: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.2);
            --shadow-md: 0 12px 36px rgba(0, 0, 0, 0.28);
            --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.36);
            --transition: all 0.25s ease;
            --container-w: 1200px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .section {
            padding: 90px 0;
            position: relative;
        }

        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-eyebrow {
            display: inline-block;
            background: rgba(108, 92, 231, 0.15);
            color: var(--primary-light);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 6px 18px;
            border-radius: 100px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.25;
            letter-spacing: -0.5px;
        }

        .section-desc {
            max-width: 680px;
            margin: 14px auto 0;
            color: var(--text-muted);
            font-size: 16px;
        }

        .divider {
            width: 64px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary));
            border-radius: 4px;
            margin: 20px auto 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 32px;
            font-size: 15px;
            font-weight: 700;
            border-radius: 100px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), #FF7D1C);
            color: #1A0E00;
            box-shadow: 0 6px 24px rgba(255, 157, 28, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(255, 157, 28, 0.45);
            color: #1A0E00;
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-light);
            border: 2px solid rgba(255, 255, 255, 0.25);
        }

        .btn-ghost:hover {
            border-color: var(--primary-light);
            color: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-dark {
            background: var(--bg-card-alt);
            color: var(--text-light);
            border: 1px solid var(--border-default);
        }

        .btn-dark:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(108, 92, 231, 0.6);
            outline-offset: 2px;
        }

        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
        }

        .badge-primary {
            background: rgba(108, 92, 231, 0.2);
            color: var(--primary-light);
        }

        .badge-accent {
            background: rgba(255, 159, 28, 0.18);
            color: var(--accent);
        }

        .badge-success {
            background: rgba(46, 213, 115, 0.15);
            color: #2ed573;
        }

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

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(108, 92, 231, 0.3);
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            pointer-events: none;
        }

        .dock-nav {
            pointer-events: auto;
            max-width: 1100px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 28px;
            background: rgba(15, 21, 38, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 60px;
            box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-light);
            letter-spacing: 0.5px;
        }

        .nav-brand i {
            color: var(--accent);
            font-size: 22px;
        }

        .nav-brand:hover {
            color: var(--text-light);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-body);
            border-radius: 100px;
        }

        .nav-links a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-links a.active {
            color: var(--text-light);
            background: linear-gradient(135deg, rgba(108, 92, 231, 0.25), rgba(255, 159, 28, 0.15));
            border: 1px solid rgba(108, 92, 231, 0.2);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-cta .btn {
            padding: 10px 24px;
            font-size: 13px;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            width: 42px;
            height: 42px;
            color: var(--text-light);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

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

        /* ===== Hero ===== */
        .hero {
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 160px 20px 100px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 10, 20, 0.75) 0%, rgba(6, 10, 20, 0.55) 50%, rgba(11, 16, 32, 0.92) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.25), transparent 70%);
            top: -150px;
            right: -150px;
            z-index: 1;
        }

        .hero-container {
            position: relative;
            z-index: 2;
            max-width: 820px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-light);
            padding: 8px 22px;
            border-radius: 100px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }

        .hero-badge i {
            color: var(--accent);
        }

        .hero h1 {
            font-size: clamp(40px, 7vw, 64px);
            font-weight: 900;
            color: var(--text-light);
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 18px;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: clamp(16px, 2vw, 19px);
            color: var(--text-body);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 44px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-stat {
            text-align: center;
        }

        .hero-stat strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: var(--text-light);
        }

        .hero-stat span {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 1px;
        }

        .hero-scroll {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            color: var(--text-muted);
            font-size: 22px;
            animation: bounceDown 2s infinite;
        }

        @keyframes bounceDown {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
                opacity: 0.8;
            }
            50% {
                transform: translateX(-50%) translateY(8px);
                opacity: 0.4;
            }
        }

        /* ===== 平台亮点 ===== */
        .features-section {
            background: var(--bg-dark);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 36px 30px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .feature-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 22px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
        }

        .feature-icon.i1 {
            background: rgba(108, 92, 231, 0.15);
            color: var(--primary-light);
        }

        .feature-icon.i2 {
            background: rgba(255, 159, 28, 0.15);
            color: var(--accent);
        }

        .feature-icon.i3 {
            background: rgba(46, 213, 115, 0.15);
            color: #2ed573;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 分类入口 ===== */
        .categories-section {
            background: var(--bg-darker);
            position: relative;
        }

        .categories-section::before {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.1), transparent 70%);
            bottom: -100px;
            left: -100px;
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 360px;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            transition: var(--transition);
        }

        .category-card img {
            width: 100%;
            height: 100%;
            min-height: 360px;
            object-fit: cover;
            position: absolute;
            inset: 0;
            z-index: 0;
            transition: transform 0.6s ease;
        }

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

        .category-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 16, 32, 0.1) 0%, rgba(11, 16, 32, 0.85) 80%, rgba(6, 10, 20, 0.95) 100%);
            z-index: 1;
        }

        .category-body {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 28px;
            z-index: 2;
        }

        .category-body .badge {
            margin-bottom: 12px;
        }

        .category-body h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .category-body p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
        }

        .category-link i {
            transition: transform 0.3s ease;
        }

        .category-link:hover {
            color: var(--accent-light);
        }

        .category-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 最新信息 ===== */
        .latest-section {
            background: var(--bg-dark);
        }

        .latest-wrap {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-card {
            display: flex;
            gap: 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: var(--transition);
            align-items: flex-start;
        }

        .news-card:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
            border-color: rgba(108, 92, 231, 0.25);
        }

        .news-rank {
            font-size: 28px;
            font-weight: 900;
            color: rgba(108, 92, 231, 0.3);
            line-height: 1;
            min-width: 44px;
            text-align: center;
            padding-top: 4px;
        }

        .news-rank.rank-top {
            color: var(--accent);
        }

        .news-info {
            flex: 1;
        }

        .news-info h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-info h3 a:hover {
            color: var(--primary-light);
        }

        .news-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .news-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-light);
            background: rgba(108, 92, 231, 0.12);
            padding: 3px 12px;
            border-radius: 100px;
        }

        .news-date {
            font-size: 12px;
            color: var(--text-muted);
        }

        .no-data {
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-card);
            border: 1px dashed var(--border-default);
            border-radius: var(--radius-md);
        }

        .no-data i {
            font-size: 36px;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: block;
        }

        .no-data p {
            color: var(--text-muted);
            font-size: 15px;
        }

        .side-panel {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .side-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 26px;
        }

        .side-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-card h4 i {
            color: var(--accent);
        }

        .side-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .side-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 14px;
            color: var(--text-body);
            padding: 8px 12px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .side-list a:hover {
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-light);
            padding-left: 16px;
        }

        .side-list a span {
            color: var(--text-muted);
            font-size: 12px;
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat fixed;
            position: relative;
            padding: 80px 0;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(6, 10, 20, 0.85);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }

        .stat-item {
            text-align: center;
            padding: 36px 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.09);
            transform: translateY(-4px);
        }

        .stat-icon {
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .stat-item strong {
            display: block;
            font-size: 40px;
            font-weight: 900;
            color: var(--text-light);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-item span {
            font-size: 14px;
            color: var(--text-body);
            letter-spacing: 1px;
        }

        /* ===== 使用流程 ===== */
        .steps-section {
            background: var(--bg-dark);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .step-item {
            text-align: center;
            padding: 32px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            position: relative;
            transition: var(--transition);
        }

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

        .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 6px 20px rgba(108, 92, 231, 0.3);
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .step-arrow {
            position: absolute;
            top: 40px;
            right: -18px;
            color: var(--primary);
            font-size: 18px;
            z-index: 2;
        }

        /* ===== 精选推荐 ===== */
        .recommend-section {
            background: var(--bg-darker);
            position: relative;
        }

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

        .rec-card {
            display: flex;
            gap: 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .rec-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(255, 159, 28, 0.2);
        }

        .rec-thumb {
            width: 200px;
            min-height: 180px;
            flex-shrink: 0;
        }

        .rec-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .rec-body {
            padding: 24px 24px 24px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .rec-body .badge {
            align-self: flex-start;
            margin-bottom: 10px;
        }

        .rec-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .rec-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-wrap .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-wrap .accordion-item:hover {
            border-color: rgba(108, 92, 231, 0.25);
        }

        .faq-wrap .accordion-title {
            background: transparent;
            color: var(--text-light);
            font-size: 16px;
            font-weight: 600;
            padding: 20px 24px;
            border-bottom: 1px solid transparent;
        }

        .faq-wrap .accordion-title:hover {
            background: rgba(255, 255, 255, 0.03);
            color: var(--primary-light);
        }

        .faq-wrap .accordion-item.is-active .accordion-title {
            border-bottom-color: var(--border-default);
        }

        .faq-wrap .accordion-content {
            background: transparent;
            color: var(--text-body);
            font-size: 14px;
            line-height: 1.7;
            padding: 8px 24px 24px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            position: relative;
            padding: 90px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 16, 32, 0.9), rgba(83, 67, 200, 0.75));
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: clamp(28px, 5vw, 44px);
            font-weight: 900;
            color: var(--text-light);
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-darker);
            padding: 64px 0 0;
            border-top: 1px solid var(--border-default);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .nav-brand {
            margin-bottom: 14px;
            font-size: 22px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 300px;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 18px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-col ul a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-default);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-body);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 70px 0;
            }

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

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

            .category-card {
                min-height: 300px;
            }

            .category-card img {
                min-height: 300px;
            }

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

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

            .step-arrow {
                display: none;
            }

            .latest-wrap {
                grid-template-columns: 1fr;
            }

            .rec-card {
                flex-direction: column;
            }

            .rec-thumb {
                width: 100%;
                min-height: 160px;
            }

            .rec-thumb img {
                min-height: 160px;
            }

            .rec-body {
                padding: 0 24px 24px;
            }

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

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

            .dock-nav {
                border-radius: 40px;
                padding: 10px 18px;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 16px;
                right: 16px;
                background: rgba(15, 21, 38, 0.98);
                border: 1px solid var(--border-default);
                border-radius: 20px;
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                box-shadow: var(--shadow-lg);
            }

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

            .nav-links a {
                padding: 12px 18px;
                text-align: left;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta .btn {
                display: none;
            }

            .hero {
                min-height: 85vh;
                padding: 130px 20px 80px;
            }

            .hero-stats {
                gap: 24px;
            }

            .hero-stat strong {
                font-size: 22px;
            }

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

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

            .category-card {
                min-height: 260px;
            }

            .category-card img {
                min-height: 260px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stat-item strong {
                font-size: 28px;
            }

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

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

            .news-card {
                flex-direction: column;
                padding: 20px;
                gap: 10px;
            }

            .news-rank {
                font-size: 22px;
            }

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

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

            .hero h1 {
                font-size: 36px;
            }

            .hero-btns {
                flex-direction: column;
                padding: 0 24px;
            }

            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }

            .section-title {
                font-size: 26px;
                padding: 0 8px;
            }

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

            .side-card {
                padding: 20px;
            }

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

            .rec-body h3 {
                font-size: 16px;
            }
        }

        /* ===== 可访问性 ===== */
        a:focus-visible {
            outline: 3px solid rgba(255, 159, 28, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .side-list a:focus-visible,
        .nav-links a:focus-visible,
        .footer-col a:focus-visible {
            outline-color: rgba(108, 92, 231, 0.5);
        }

/* roulang page: category1 */
:root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-soft: #eff6ff;
            --accent: #f59e0b;
            --accent-soft: #fffbeb;
            --bg: #f8fafc;
            --surface: #ffffff;
            --text: #0f172a;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-lg: 24px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow: 0 12px 32px rgba(15,23,42,0.08);
            --shadow-lg: 0 24px 60px rgba(15,23,42,0.12);
            --section-space: 80px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 12px 24px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 0;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.28);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(37, 99, 235, 0.32);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.10);
        }

        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.14);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }

        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 14px 20px 0;
        }

        .dock-nav {
            position: relative;
            max-width: 1180px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 10px 18px;
            border-radius: 60px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: 0 8px 32px rgba(2, 12, 27, 0.10);
            border: 1px solid rgba(255, 255, 255, 0.8);
        }

        .nav-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            white-space: nowrap;
        }

        .nav-brand i {
            color: var(--primary);
            font-size: 22px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            display: block;
            padding: 9px 16px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: background 0.25s, color 0.25s;
        }

        .nav-links a:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.28);
        }

        .nav-cta {
            display: flex;
            align-items: center;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 0;
            font-size: 22px;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: 10px;
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            padding: 160px 0 110px;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, 0.88), rgba(37, 99, 235, 0.68));
        }

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

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.24);
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            backdrop-filter: blur(6px);
        }

        .hero-eyebrow i {
            color: #fde047;
        }

        .hero-title {
            font-size: 44px;
            line-height: 1.2;
            color: #fff;
            margin: 18px 0 16px;
            font-weight: 900;
        }

        .hero-title span {
            color: #fde047;
        }

        .hero-desc {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* ========== Section ========== */
        .section {
            padding: var(--section-space) 0;
        }

        .section-alt {
            background: #f1f5f9;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 52px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin: 8px 0 12px;
        }

        .section-desc {
            color: var(--text-light);
            font-size: 16px;
        }

        /* ========== Standard Cards ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .card-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
        }

        .card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(37, 99, 235, 0.3);
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            background: var(--primary-soft);
            color: var(--primary);
            margin-bottom: 18px;
        }

        .card-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .card-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ========== Review Cards ========== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }

        .article-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .article-body {
            padding: 22px;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }

        .badge {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
        }

        .badge-accent {
            background: var(--accent-soft);
            color: #b45309;
        }

        .article-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .article-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-light);
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }

        .article-meta i {
            color: var(--primary);
        }

        /* ========== Steps ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-item {
            text-align: center;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 20px;
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .step-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }

        .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 18px rgba(37, 99, 235, 0.25);
        }

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

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

        /* ========== Stats ========== */
        .stats-section {
            background: #0f172a;
            color: #fff;
            padding: 80px 0;
        }

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

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

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-item {
            text-align: center;
            padding: 20px 10px;
            border-left: 1px solid rgba(255, 255, 255, 0.08);
            border-right: 1px solid rgba(255, 255, 255, 0.08);
        }

        .stat-num {
            font-size: 42px;
            font-weight: 900;
            color: #f59e0b;
            line-height: 1.2;
        }

        .stat-label {
            margin-top: 8px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            margin-bottom: 16px;
            transition: box-shadow 0.3s, border-color 0.3s;
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .faq-item h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }

        .faq-item h3 i {
            color: var(--primary);
            margin-top: 4px;
        }

        .faq-item p {
            color: var(--text-light);
            font-size: 15px;
            padding-left: 28px;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #1e3a8a, #7c3aed);
            border-radius: var(--radius-lg);
            color: #fff;
            text-align: center;
            padding: 64px 40px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            top: -120px;
            right: -80px;
        }

        .cta-section h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 30px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.75);
            padding: 70px 0 0;
            margin-top: 80px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .nav-brand {
            color: #fff;
            font-size: 20px;
        }

        .footer-brand .nav-brand i {
            color: #f59e0b;
        }

        .footer-brand p {
            margin: 16px 0 0;
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

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

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.25s;
        }

        .footer-col ul li a:hover {
            color: #f59e0b;
        }

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a:hover {
            color: #f59e0b;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .article-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) {
            .site-header {
                padding: 10px 14px 0;
            }

            .dock-nav {
                padding: 10px 14px;
            }

            .nav-links {
                position: absolute;
                top: calc(100% + 10px);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 14px;
                border-radius: 20px;
                box-shadow: 0 16px 40px rgba(15, 23, 42, 0.16);
                display: none;
                z-index: 99;
            }

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

            .nav-links a {
                padding: 12px 16px;
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .hero-section {
                padding: 120px 0 80px;
            }

            .hero-title {
                font-size: 34px;
            }

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

            .section {
                --section-space: 60px;
            }

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

            .cta-section {
                padding: 48px 24px;
            }

            .cta-section h2 {
                font-size: 24px;
            }

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

            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .cards-grid,
            .article-grid,
            .steps-grid,
            .stats-grid {
                grid-template-columns: 1fr;
            }

            .nav-brand {
                font-size: 16px;
            }

            .hero-title {
                font-size: 28px;
            }

            .stat-item {
                border-left: none;
                border-right: none;
            }

            .faq-item p {
                padding-left: 0;
            }
        }

/* roulang page: article */
:root {
            --primary: #4f46e5;
            --primary-dark: #3730a3;
            --primary-light: #818cf8;
            --accent: #f59f00;
            --accent-light: #ffd43b;
            --dark: #0f172a;
            --dark-2: #1e293b;
            --bg-light: #f1f5f9;
            --bg-white: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
            --shadow-md: 0 6px 20px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
            --transition: all 0.3s ease;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
            background: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
            padding-top: 96px;
            -webkit-font-smoothing: antialiased;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: var(--primary-dark); }
        ul, ol { margin: 0; padding: 0; list-style: none; }

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

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.18);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(79, 70, 229, 0.28);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-outline:hover {
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .btn-sm { padding: 9px 18px; font-size: 14px; }
        .btn-block { width: 100%; }

        /* ===== 标签 / 徽章 ===== */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: #eef2ff;
            color: var(--primary);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin: 4px 6px 4px 0;
            transition: var(--transition);
        }
        .tag:hover {
            background: var(--primary);
            color: #ffffff;
            transform: translateY(-1px);
        }

        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background: rgba(15, 23, 42, 0.72);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.22);
            padding: 5px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        /* ===== Header / 浮动 Dock 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 24px;
        }
        .dock-nav {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: 22px;
            padding: 12px 24px;
            box-shadow: 0 6px 24px rgba(15, 23, 42, 0.09);
            transition: var(--transition);
        }
        .nav-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.02em;
            padding: 4px 0;
        }
        .nav-brand i {
            color: var(--primary);
            font-size: 22px;
            background: #eef2ff;
            border-radius: 10px;
            padding: 6px;
            width: 34px;
            height: 34px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            color: #475569;
            transition: var(--transition);
        }
        .nav-links a:hover {
            color: var(--primary);
            background: #eef2ff;
        }
        .nav-links a.active {
            color: var(--primary);
            background: #eef2ff;
            font-weight: 700;
        }
        .nav-cta .btn { font-size: 14px; }
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            font-size: 22px;
            color: var(--dark);
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .nav-toggle:hover { background: #f1f5f9; }

        /* ===== 文章 Banner ===== */
        .article-banner {
            position: relative;
            background-color: var(--dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 130px 0 70px;
            overflow: hidden;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.72) 0%, rgba(15, 23, 42, 0.55) 50%, rgba(15, 23, 42, 0.82) 100%);
        }
        .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
            margin: 0 auto;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-bottom: 18px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover { color: var(--accent-light); }
        .breadcrumb i { font-size: 10px; color: rgba(255, 255, 255, 0.5); }
        .breadcrumb span { color: rgba(255, 255, 255, 0.9); }
        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.22);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            color: #ffffff;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .banner-tag i { color: var(--accent-light); }
        .article-banner h1 {
            color: #ffffff;
            font-size: 38px;
            line-height: 1.35;
            font-weight: 800;
            margin: 0 0 20px;
            letter-spacing: -0.02em;
        }
        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 22px;
            color: rgba(255, 255, 255, 0.78);
            font-size: 14px;
        }
        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .banner-meta i { color: var(--accent-light); }

        /* ===== 文章主体 ===== */
        .article-wrap {
            padding: 48px 0 72px;
        }
        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px 44px;
            border: 1px solid var(--border);
        }
        .article-cover {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 32px;
        }
        .article-cover img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }
        .article-content {
            font-size: 16px;
            color: #334155;
        }
        .article-content h1,
        .article-content h2,
        .article-content h3,
        .article-content h4,
        .article-content h5 {
            margin: 30px 0 14px;
            color: var(--dark);
            line-height: 1.4;
            letter-spacing: -0.01em;
        }
        .article-content h2 {
            font-size: 24px;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
        }
        .article-content p {
            margin: 16px 0;
            font-size: 16px;
            line-height: 1.9;
            color: #334155;
        }
        .article-content ul,
        .article-content ol {
            margin: 18px 0;
            padding-left: 24px;
        }
        .article-content ul { list-style: disc; }
        .article-content ol { list-style: decimal; }
        .article-content li {
            margin: 8px 0;
            font-size: 16px;
            line-height: 1.8;
            color: #334155;
        }
        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
            margin: 22px 0;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: #f8fafc;
            padding: 18px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 22px 0;
            color: #475569;
            font-size: 15px;
            font-style: italic;
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content a:hover { color: var(--primary-dark); }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 22px 0;
            font-size: 15px;
        }
        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 12px 14px;
            text-align: left;
        }
        .article-content table th {
            background: #f8fafc;
            font-weight: 700;
        }

        .article-tags {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4px;
        }
        .article-tags > span {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            margin-right: 6px;
        }

        /* ===== 侧边栏 ===== */
        .sidebar-inner {
            position: sticky;
            top: 104px;
        }
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 26px 24px;
            margin-bottom: 22px;
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 18px;
            display: flex;
            align-items: center;
            gap: 9px;
        }
        .sidebar-card h3 i {
            color: var(--primary);
            width: 28px;
            height: 28px;
            background: #eef2ff;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .info-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid #f1f5f9;
            font-size: 14px;
            color: #475569;
        }
        .info-list li:last-child { border-bottom: none; }
        .info-list li i {
            color: var(--primary);
            width: 18px;
            text-align: center;
            font-size: 14px;
        }
        .info-list li a { color: var(--primary); font-weight: 500; }
        .info-list li span { color: var(--text-main); font-weight: 500; }

        .cat-list li {
            margin-bottom: 8px;
        }
        .cat-list li a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            background: #f8fafc;
            border-radius: var(--radius-sm);
            color: var(--text-main);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }
        .cat-list li a i { color: var(--primary); font-size: 15px; margin-right: 6px; }
        .cat-list li a span { font-size: 12px; color: var(--text-muted); font-weight: 400; }
        .cat-list li a:hover {
            background: #eef2ff;
            color: var(--primary);
            transform: translateX(3px);
        }

        .side-post-list li {
            display: flex;
            flex-direction: column;
            padding: 12px 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .side-post-list li:last-child { border-bottom: none; }
        .side-post-list a {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            transition: var(--transition);
            margin-bottom: 4px;
        }
        .side-post-list a:hover { color: var(--primary); }
        .side-post-list .side-date {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            background: var(--bg-white);
            padding: 68px 0;
        }
        .related-section .section-head {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-head .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: #eef2ff;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 10px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--dark);
            margin: 0;
            letter-spacing: -0.02em;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: #c7d2fe;
        }
        .related-thumb {
            position: relative;
            display: block;
            height: 170px;
            overflow: hidden;
            background: #e2e8f0;
        }
        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .related-thumb img {
            transform: scale(1.05);
        }
        .related-body {
            padding: 18px 20px 22px;
        }
        .related-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.45;
        }
        .related-body h3 a {
            color: var(--dark);
            transition: color 0.2s ease;
        }
        .related-body h3 a:hover { color: var(--primary); }
        .related-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .related-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
        }
        .related-meta span { display: inline-flex; align-items: center; gap: 5px; }
        .related-meta a {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: var(--transition);
        }
        .related-meta a:hover { gap: 8px; color: var(--primary-dark); }

        /* ===== CTA 区域 ===== */
        .cta-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            padding: 70px 0;
            text-align: center;
        }
        .cta-section h2 {
            color: #ffffff;
            font-size: 30px;
            font-weight: 800;
            margin: 0 0 14px;
            letter-spacing: -0.02em;
        }
        .cta-section p {
            color: #cbd5e1;
            font-size: 16px;
            max-width: 640px;
            margin: 0 auto 30px;
            line-height: 1.7;
        }
        .cta-section .btn {
            padding: 14px 34px;
            font-size: 16px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 62px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 44px;
        }
        .footer-brand .nav-brand {
            color: #ffffff;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #94a3b8;
            margin: 12px 0 0;
            max-width: 420px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 18px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: #94a3b8;
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: #64748b;
        }
        .footer-bottom a { color: #94a3b8; }
        .footer-bottom a:hover { color: var(--accent-light); }

        /* ===== 找不到文章 ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 24px;
        }
        .not-found-box i {
            font-size: 52px;
            color: #cbd5e1;
            margin-bottom: 20px;
            display: block;
        }
        .not-found-box h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--dark);
            margin: 0 0 10px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin: 0 0 24px;
            font-size: 15px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .body { padding-top: 84px; }
            .article-body { padding: 32px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .article-banner h1 { font-size: 32px; }
        }

        @media (max-width: 768px) {
            body { padding-top: 76px; }
            .site-header { padding: 10px 16px; }
            .dock-nav { padding: 10px 16px; border-radius: 16px; gap: 12px; }
            .nav-links {
                position: absolute;
                top: calc(100% + 12px);
                left: 0;
                right: 0;
                display: none;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                border: 1px solid var(--border);
                border-radius: 16px;
                box-shadow: var(--shadow-lg);
                padding: 14px;
                flex-direction: column;
                gap: 2px;
            }
            .nav-links.nav-open { display: flex; }
            .nav-links a { display: block; padding: 12px 16px; font-size: 15px; }
            .nav-cta { display: none; }
            .nav-toggle { display: inline-flex; }
            .article-banner { padding: 96px 0 50px; }
            .article-banner h1 { font-size: 26px; }
            .banner-meta { gap: 14px; font-size: 13px; }
            .article-wrap { padding: 28px 0 48px; }
            .article-body { padding: 22px 20px; }
            .article-content p { font-size: 15px; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .cta-section { padding: 50px 0; }
            .cta-section h2 { font-size: 24px; }
        }

        @media (max-width: 520px) {
            .nav-brand { font-size: 17px; }
            .nav-brand i { font-size: 18px; width: 30px; height: 30px; }
            .article-banner h1 { font-size: 22px; }
            .breadcrumb { font-size: 13px; }
            .banner-meta { flex-direction: column; gap: 8px; }
            .article-cover { margin-bottom: 20px; }
            .section-head h2 { font-size: 24px; }
            .cta-section h2 { font-size: 22px; }
            .container { padding-left: 18px; padding-right: 18px; }
        }

/* roulang page: category2 */
:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #EEF2FF;
    --secondary: #F59E0B;
    --secondary-dark: #D97706;
    --bg: #F8FAFC;
    --bg-dark: #0F172A;
    --white: #FFFFFF;
    --text: #1E293B;
    --text-muted: #64748B;
    --border: #E2E8F0;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow: 0 4px 24px rgba(30, 41, 59, 0.08);
    --shadow-lg: 0 16px 48px rgba(30, 41, 59, 0.12);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

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

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

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

ul {
    list-style: none;
}

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

/* ===== Header / Dock Navigation ===== */
.site-header {
    position: sticky;
    top: 16px;
    z-index: 1000;
    padding: 0 24px;
    margin-top: 16px;
}

.dock-nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 60px;
    padding: 10px 24px;
    box-shadow: 0 8px 32px rgba(30, 41, 59, 0.12);
    transition: box-shadow var(--transition);
}

.dock-nav:hover {
    box-shadow: 0 12px 40px rgba(30, 41, 59, 0.16);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.nav-brand i {
    font-size: 22px;
    color: var(--primary);
    background: var(--primary-light);
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-links li a {
    display: inline-block;
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: 40px;
    transition: all var(--transition);
}

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

.nav-links li a.active {
    color: var(--white);
    background: var(--primary);
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.35);
}

.nav-cta .btn {
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: var(--white) !important;
    border: none;
    padding: 10px 22px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition);
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--white) !important;
    border: none;
    padding: 12px 28px;
    border-radius: 40px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition);
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}

.btn-secondary:hover {
    background: var(--secondary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text) !important;
    border: 2px solid var(--border);
    padding: 10px 22px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary) !important;
    background: var(--primary-light);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background var(--transition);
}

.nav-toggle:hover {
    background: var(--primary-light);
    color: var(--primary);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 27, 75, 0.88) 40%, rgba(79, 70, 229, 0.75) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    padding: 140px 0 120px;
    color: var(--white);
    border-radius: 0 0 48px 48px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.25) 0%, transparent 60%);
    border-radius: 50%;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.hero .tagline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 6px 16px;
    border-radius: 40px;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
    backdrop-filter: blur(4px);
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.5px;
    margin-bottom: 20px;
}

.hero h1 span {
    color: var(--secondary);
}

.hero p {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

.hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-stat strong {
    font-size: 28px;
    font-weight: 800;
    color: var(--secondary);
}

.hero-stat span {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

/* ===== Section ===== */
.section {
    padding: 80px 0;
}

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-light);
    padding: 6px 16px;
    border-radius: 40px;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.section-head h2 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: 12px;
}

.section-head p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===== 图文区块 ===== */
.feature-block {
    display: flex;
    align-items: center;
    gap: 56px;
    padding: 40px 0;
}

.feature-block.reverse {
    flex-direction: row-reverse;
}

.feature-img {
    flex: 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.feature-img img {
    width: 100%;
    height: 340px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.feature-img:hover img {
    transform: scale(1.03);
}

.feature-text {
    flex: 1;
}

.feature-text h3 {
    font-size: 26px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 16px;
    color: var(--text);
}

.feature-text p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    color: var(--text);
}

.feature-list li i {
    color: var(--primary);
    margin-top: 3px;
    flex-shrink: 0;
}

/* ===== 分类卡片 ===== */
.cat-grid {
    display: flex;
    flex-wrap: wrap;
    margin: -8px;
}

.cat-card {
    padding: 16px;
    margin: 0;
}

.cat-card-inner {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cat-card-inner:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.cat-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 18px;
    transition: all var(--transition);
}

.cat-icon.i-purple {
    background: #EDE9FE;
    color: #7C3AED;
}

.cat-icon.i-blue {
    background: #DBEAFE;
    color: #2563EB;
}

.cat-icon.i-amber {
    background: #FEF3C7;
    color: #D97706;
}

.cat-icon.i-green {
    background: #D1FAE5;
    color: #059669;
}

.cat-icon.i-rose {
    background: #FFE4E6;
    color: #E11D48;
}

.cat-icon.i-indigo {
    background: #E0E7FF;
    color: #4F46E5;
}

.cat-card-inner h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.cat-card-inner p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.cat-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition);
}

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

/* ===== 内容卡片 ===== */
.article-grid {
    display: flex;
    flex-wrap: wrap;
    margin: -12px;
}

.article-card {
    padding: 12px;
    margin: 0;
}

.article-card-inner {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px rgba(30, 41, 59, 0.04);
}

.article-card-inner:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

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

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

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

.article-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(79, 70, 229, 0.9);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    backdrop-filter: blur(4px);
}

.article-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.article-meta i {
    font-size: 12px;
    margin-right: 4px;
}

.article-info h3 {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.5;
    color: var(--text);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-info p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 16px;
}

.article-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: auto;
}

.article-tags span {
    font-size: 12px;
    color: var(--primary);
    background: var(--primary-light);
    padding: 3px 10px;
    border-radius: 20px;
}

/* ===== 流程步骤 ===== */
.steps-section {
    background: var(--bg-dark);
    border-radius: 40px;
    color: var(--white);
    padding: 72px 48px;
    position: relative;
    overflow: hidden;
}

.steps-section::before {
    content: '';
    position: absolute;
    top: -80px;
    left: -80px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.3) 0%, transparent 70%);
    border-radius: 50%;
}

.steps-section .section-head h2 {
    color: var(--white);
}

.steps-section .section-head p {
    color: rgba(255, 255, 255, 0.6);
}

.steps-section .section-tag {
    background: rgba(255, 255, 255, 0.1);
    color: var(--secondary);
}

.step-grid {
    display: flex;
    flex-wrap: wrap;
    margin: -10px;
    position: relative;
    z-index: 2;
}

.step-item {
    padding: 10px;
    margin: 0;
}

.step-box {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    padding: 28px 24px;
    height: 100%;
    transition: all var(--transition);
    position: relative;
}

.step-box:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.step-num {
    font-size: 14px;
    font-weight: 700;
    color: var(--secondary);
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.3);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin-bottom: 16px;
}

.step-box h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-box p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

/* ===== 数据统计 ===== */
.stats-section {
    padding: 60px 0;
}

.stats-grid {
    display: flex;
    flex-wrap: wrap;
    margin: -8px;
}

.stat-item {
    padding: 8px;
    margin: 0;
}

.stat-box {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    border: 1px solid var(--border);
    transition: all var(--transition);
    height: 100%;
}

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

.stat-box .stat-num {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}

.stat-box .stat-num em {
    font-style: normal;
    color: var(--secondary);
}

.stat-box p {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ===== FAQ ===== */
.faq-wrap {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    padding: 20px 24px;
    margin-bottom: 14px;
    transition: all var(--transition);
    cursor: pointer;
}

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

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    padding: 0;
    font-family: inherit;
}

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

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

.faq-answer {
    display: none;
    padding: 14px 0 0;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
    border-top: 1px dashed var(--border);
    margin-top: 14px;
}

.faq-item.open .faq-answer {
    display: block;
}

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

.cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(79, 70, 229, 0.3);
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.4) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-box h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
}

.cta-box p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 28px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-box .btn-secondary {
    position: relative;
    z-index: 2;
    background: var(--white);
    color: var(--primary) !important;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.cta-box .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-dark);
    color: #94A3B8;
    padding: 64px 0 24px;
    margin-top: 80px;
}

.footer-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-brand {
    flex: 1.5;
    min-width: 280px;
}

.footer-brand .nav-brand {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand .nav-brand i {
    background: rgba(255, 255, 255, 0.1);
    color: var(--secondary);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    max-width: 360px;
}

.footer-col {
    flex: 1;
    min-width: 160px;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col ul a {
    font-size: 14px;
    color: #94A3B8;
    transition: color var(--transition);
}

.footer-col ul a:hover {
    color: var(--secondary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: #64748B;
}

.footer-bottom a {
    color: #94A3B8;
    transition: color var(--transition);
}

.footer-bottom a:hover {
    color: var(--secondary);
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
    .hero h1 {
        font-size: 38px;
    }
    .feature-block,
    .feature-block.reverse {
        flex-direction: column;
        gap: 32px;
    }
    .feature-img img {
        height: 260px;
    }
    .steps-section {
        padding: 48px 32px;
    }
}

@media screen and (max-width: 768px) {
    .site-header {
        top: 8px;
        padding: 0 12px;
    }
    .dock-nav {
        border-radius: 20px;
        padding: 10px 16px;
    }
    .nav-links {
        display: none;
        position: absolute;
        top: calc(100% + 8px);
        left: 0;
        right: 0;
        background: var(--white);
        border-radius: 16px;
        box-shadow: var(--shadow-lg);
        padding: 16px;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        border: 1px solid var(--border);
    }
    .nav-links.show {
        display: flex;
    }
    .nav-links li a {
        padding: 12px 16px;
        display: block;
    }
    .nav-toggle {
        display: block;
    }
    .nav-cta {
        display: none;
    }
    .hero {
        padding: 100px 0 80px;
        border-radius: 0 0 32px 32px;
    }
    .hero h1 {
        font-size: 30px;
    }
    .hero p {
        font-size: 15px;
    }
    .hero-stats {
        gap: 20px;
        flex-wrap: wrap;
    }
    .hero-stat strong {
        font-size: 22px;
    }
    .section {
        padding: 56px 0;
    }
    .section-head h2 {
        font-size: 26px;
    }
    .section-head p {
        font-size: 14px;
    }
    .cta-box {
        padding: 40px 24px;
    }
    .cta-box h2 {
        font-size: 26px;
    }
    .footer-grid {
        flex-direction: column;
        gap: 32px;
    }
    .steps-section {
        border-radius: 24px;
        padding: 40px 24px;
    }
}

@media screen and (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    .hero h1 {
        font-size: 26px;
    }
    .hero-btns {
        flex-direction: column;
    }
    .hero-btns .btn {
        width: 100%;
        justify-content: center;
    }
    .section-head h2 {
        font-size: 22px;
    }
    .cat-card-inner {
        padding: 24px 18px;
    }
    .article-card {
        padding: 8px;
    }
    .article-info {
        padding: 16px;
    }
    .article-info h3 {
        font-size: 14px;
    }
    .steps-section {
        padding: 32px 18px;
    }
    .cta-box {
        padding: 32px 20px;
    }
    .cta-box h2 {
        font-size: 22px;
    }
    .cta-box p {
        font-size: 14px;
    }
}

/* roulang page: category3 */
:root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --primary-light: #eef2ff;
            --accent: #f59e0b;
            --accent-light: #fef3c7;
            --dark: #0f172a;
            --dark-2: #1e293b;
            --dark-3: #334155;
            --text: #1e293b;
            --text-weak: #64748b;
            --bg: #f8fafc;
            --bg-soft: #f1f5f9;
            --white: #ffffff;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --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 40px rgba(15, 23, 42, 0.12);
            --space-section: 88px;
            --space-section-sm: 56px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 24px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.28s ease;
            line-height: 1.4;
        }
        .btn i {
            font-size: 14px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.45);
            filter: brightness(1.05);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 16px 34px;
            font-size: 16px;
            border-radius: 14px;
        }
        /* Header Dock Nav */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            padding: 0 24px;
            pointer-events: none;
        }
        .dock-nav {
            max-width: 1180px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            background: rgba(15, 23, 42, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-radius: 999px;
            padding: 12px 28px;
            box-shadow: 0 8px 32px rgba(15, 23, 42, 0.25);
            border: 1px solid rgba(255, 255, 255, 0.08);
            pointer-events: auto;
            position: relative;
        }
        .nav-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .nav-brand i {
            font-size: 22px;
            color: var(--accent);
            background: rgba(245, 158, 11, 0.15);
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
        }
        .nav-brand:hover {
            color: #fff;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
        }
        .nav-links li {
            margin: 0;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 999px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            font-weight: 500;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-links a.active {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .nav-cta .btn {
            background: linear-gradient(135deg, var(--accent), #f97316);
            color: #0f172a;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
            border: none;
        }
        .nav-cta .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.45);
        }
        .nav-toggle {
            display: none;
            background: rgba(255, 255, 255, 0.1);
            border: none;
            border-radius: 10px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            cursor: pointer;
            transition: background 0.25s ease;
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        /* Hero */
        .page-hero {
            position: relative;
            padding: 160px 0 100px;
            color: #fff;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.82), rgba(30, 27, 75, 0.75)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 80px;
            background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.2), transparent 70%);
            pointer-events: none;
        }
        .hero-inner {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 14px;
            letter-spacing: 1px;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero-title {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }
        .hero-title span {
            background: linear-gradient(120deg, var(--accent), #f97316);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }
        /* Section */
        .section {
            padding: var(--space-section) 0;
        }
        .section.bg-soft {
            background: var(--bg-soft);
        }
        .section.bg-dark {
            background: var(--dark);
            color: #fff;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: clamp(26px, 4vw, 38px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 14px;
            color: var(--text);
        }
        .section.bg-dark .section-title {
            color: #fff;
        }
        .section-subtitle {
            color: var(--text-weak);
            font-size: 16px;
            line-height: 1.7;
        }
        .section.bg-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        /* Filter Bar */
        .filter-bar {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 48px;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            background: var(--white);
            border: 1px solid var(--border);
            color: var(--text-weak);
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .filter-tag i {
            font-size: 13px;
        }
        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .filter-tag.active {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
        }
        /* News Cards */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(99, 102, 241, 0.3);
        }
        .news-card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-soft);
        }
        .news-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-card-image img {
            transform: scale(1.05);
        }
        .news-card-image .news-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 23, 42, 0.75);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .news-card-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-card-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 10px;
            color: var(--text);
            transition: color 0.2s ease;
        }
        .news-card:hover .news-card-title {
            color: var(--primary);
        }
        .news-card-summary {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 16px;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-weak);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .news-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-card-meta i {
            font-size: 12px;
            color: var(--primary);
        }
        /* Rank Panel */
        .rank-layout {
            display: grid;
            grid-template-columns: 1.3fr 0.7fr;
            gap: 40px;
            align-items: stretch;
        }
        .rank-panel {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 28px;
        }
        .rank-panel-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }
        .rank-panel-head h3 {
            font-size: 20px;
            font-weight: 700;
        }
        .rank-panel-head .rank-more {
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            transition: background 0.2s ease;
            cursor: pointer;
        }
        .rank-item:hover {
            background: var(--bg-soft);
        }
        .rank-num {
            font-size: 22px;
            font-weight: 800;
            color: var(--border);
            width: 36px;
            text-align: center;
            flex-shrink: 0;
            font-style: italic;
        }
        .rank-item:nth-child(1) .rank-num {
            color: var(--accent);
        }
        .rank-item:nth-child(2) .rank-num {
            color: var(--dark-3);
        }
        .rank-item:nth-child(3) .rank-num {
            color: #b45309;
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-bottom: 2px;
        }
        .rank-desc {
            font-size: 13px;
            color: var(--text-weak);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-heat {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            flex-shrink: 0;
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 999px;
        }
        .rank-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .side-card .side-img {
            border-radius: var(--radius-sm);
            aspect-ratio: 16 / 7;
            overflow: hidden;
            margin-bottom: 16px;
        }
        .side-card .side-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .side-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .side-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }
        .side-card .side-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 12px;
        }
        /* Process */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .process-step {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all 0.3s ease;
        }
        .process-step:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .step-icon {
            width: 68px;
            height: 68px;
            margin: 0 auto 20px;
            border-radius: 20px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary);
            transition: all 0.3s ease;
        }
        .process-step:hover .step-icon {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
        }
        .step-num {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 36px;
            font-weight: 800;
            color: rgba(15, 23, 42, 0.06);
            line-height: 1;
        }
        .step-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-desc {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }
        /* FAQ */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .faq-item:hover {
            border-color: rgba(99, 102, 241, 0.3);
            box-shadow: var(--shadow-sm);
        }
        .faq-q {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .faq-q i {
            color: var(--primary);
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-q i {
            transform: rotate(45deg);
        }
        .faq-a {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.35s ease;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.open .faq-a {
            padding: 0 24px 20px;
            max-height: 400px;
        }
        /* CTA */
        .cta-panel {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-lg);
            padding: 72px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: 0 24px 60px rgba(79, 70, 229, 0.35);
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }
        .cta-panel::after {
            content: '';
            position: absolute;
            bottom: -80%;
            left: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.15);
            pointer-events: none;
        }
        .cta-panel h2 {
            font-size: clamp(24px, 4vw, 34px);
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-panel p {
            font-size: 16px;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }
        .cta-btn {
            background: #fff;
            color: var(--primary-dark);
            border: none;
            padding: 14px 36px;
            border-radius: 999px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }
        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }
        /* Footer */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .nav-brand {
            margin-bottom: 16px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            max-width: 340px;
            margin-top: 12px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col ul a i {
            font-size: 12px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 14px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            border-bottom: 1px dotted rgba(255, 255, 255, 0.3);
        }
        .footer-bottom a:hover {
            color: var(--accent);
            border-color: var(--accent);
        }
        /* Focus accessibility */
        a:focus-visible,
        button:focus-visible,
        .filter-tag:focus-visible {
            outline: 3px solid rgba(99, 102, 241, 0.5);
            outline-offset: 2px;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .rank-layout {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero {
                padding: 130px 0 80px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 64px;
            }
            .site-header {
                top: 8px;
                padding: 0 12px;
            }
            .dock-nav {
                padding: 10px 16px;
                border-radius: 24px;
                flex-wrap: wrap;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0 4px;
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                text-align: center;
                padding: 10px 16px;
                border-radius: 12px;
            }
            .nav-cta {
                margin-left: auto;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .container {
                padding: 0 18px;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat .num {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-panel {
                padding: 48px 24px;
                border-radius: var(--radius);
            }
        }
        @media (max-width: 520px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .dock-nav {
                padding: 10px 14px;
            }
            .nav-brand {
                font-size: 17px;
            }
            .nav-brand i {
                width: 34px;
                height: 34px;
                font-size: 18px;
            }
            .nav-cta .btn-sm {
                padding: 6px 14px;
                font-size: 13px;
            }
            .hero-actions .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .filter-tag {
                padding: 7px 14px;
                font-size: 13px;
            }
            .rank-panel {
                padding: 20px 16px;
            }
            .rank-heat {
                display: none;
            }
            .section-head {
                margin-bottom: 36px;
            }
        }