/* roulang page: index */
/* ============ 设计变量 ============ */
        :root {
            --primary: #0d5c7e;
            --primary-dark: #0a4661;
            --primary-light: #e3f0f6;
            --accent: #ef9f0e;
            --accent-dark: #c9860a;
            --accent-light: #fef4e0;
            --body-bg: #f5f7fa;
            --body-text: #182a35;
            --text-weak: #61717d;
            --border: #dbe4ea;
            --white: #ffffff;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-pill: 50px;
            --shadow-sm: 0 2px 10px rgba(10, 70, 97, 0.06);
            --shadow-md: 0 8px 28px rgba(10, 70, 97, 0.10);
            --shadow-lg: 0 18px 48px rgba(10, 70, 97, 0.16);
            --container: 1200px;
            --space: 96px;
            --speed: 0.3s;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

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

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--body-text);
            background: var(--body-bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
            font-weight: 800;
            color: var(--primary-dark);
        }

        p {
            margin: 0;
        }

        ul {
            margin: 0;
            padding: 0;
            list-style: none;
        }

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

        .grid-container {
            max-width: var(--container);
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 700;
            line-height: 1.4;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all var(--speed) ease;
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(13, 92, 126, 0.30);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(13, 92, 126, 0.40);
            color: #fff;
        }

        .btn-accent {
            background: var(--accent);
            color: #1a202c;
            box-shadow: 0 6px 20px rgba(239, 159, 14, 0.30);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, 0.65);
            color: #fff;
            background: transparent;
            backdrop-filter: blur(4px);
        }

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            transform: translateY(-2px);
        }

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

        .btn-outline-dark:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-lg {
            padding: 15px 38px;
            font-size: 16px;
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }

        .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }

        /* ============ 导航 / 浮动 Dock ============ */
        .site-header {
            position: relative;
            z-index: 100;
            padding: 0;
            background: transparent;
        }

        .dock-nav {
            position: sticky;
            top: 14px;
            max-width: 1060px;
            margin: 14px auto 0;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-pill);
            border: 1px solid rgba(219, 228, 234, 0.85);
            box-shadow: 0 8px 32px rgba(10, 70, 97, 0.12);
            transition: box-shadow var(--speed) ease;
        }

        .dock-nav:hover {
            box-shadow: 0 12px 40px rgba(10, 70, 97, 0.16);
        }

        .dock-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 12px 10px 24px;
            gap: 12px;
        }

        .brand-logo {
            font-size: 21px;
            font-weight: 900;
            letter-spacing: 0.01em;
            color: var(--primary-dark);
            flex-shrink: 0;
            line-height: 1.2;
        }

        .brand-logo span {
            color: var(--accent);
        }

        .dock-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-weak);
            transition: all var(--speed) ease;
            line-height: 1.4;
        }

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

        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(13, 92, 126, 0.35);
        }

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

        .menu-toggle {
            display: none;
            background: var(--primary-light);
            border: none;
            color: var(--primary);
            padding: 9px 13px;
            border-radius: 30px;
            font-size: 15px;
            cursor: pointer;
            transition: background var(--speed) ease;
        }

        .menu-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        .menu-toggle.active {
            background: var(--primary);
            color: #fff;
        }

        /* ============ Hero 首屏 ============ */
        .hero {
            position: relative;
            margin-top: -96px;
            padding: 200px 0 160px;
            background-image: url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(8, 46, 66, 0.86) 0%, rgba(10, 70, 97, 0.72) 50%, rgba(13, 92, 126, 0.45) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 7px 18px;
            border-radius: 40px;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
            margin-bottom: 26px;
        }

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

        .hero h1 {
            font-size: 56px;
            font-weight: 900;
            color: #fff;
            line-height: 1.18;
            margin-bottom: 20px;
            letter-spacing: -0.01em;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
        }

        .hero h1 .accent-text {
            color: var(--accent);
        }

        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.88);
            max-width: 620px;
            line-height: 1.85;
            margin-bottom: 38px;
            font-weight: 400;
        }

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

        .hero-points {
            display: flex;
            gap: 18px;
            margin-top: 44px;
            flex-wrap: wrap;
        }

        .hero-point {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.10);
            padding: 7px 14px;
            border-radius: 30px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

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

        /* ============ 通用板块 ============ */
        .section {
            padding: calc(var(--space) + 8px) 0;
        }

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

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 800;
            letter-spacing: 0.05em;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 40px;
            font-weight: 900;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .section-sub {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ============ 核心说明卡片 ============ */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 38px 30px;
            transition: all var(--speed) ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--speed) ease;
        }

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

        .feature-card:hover::after {
            transform: scaleX(1);
        }

        .feature-icon {
            width: 62px;
            height: 62px;
            border-radius: 18px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 22px;
            transition: all var(--speed) ease;
        }

        .feature-card:nth-child(2) .feature-icon {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        .feature-card:nth-child(3) .feature-icon {
            background: #e5f6ec;
            color: #1a9e54;
        }

        .feature-card:hover .feature-icon {
            transform: scale(1.06);
            border-radius: 20px;
        }

        .feature-title {
            font-size: 21px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .feature-text {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ============ 分类入口 ============ */
        .category-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow-sm);
            transition: all var(--speed) ease;
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }

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

        .category-card-img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .category-card-body {
            padding: 30px 30px 34px;
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .category-card-badge {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 12px;
            font-weight: 800;
            letter-spacing: 0.04em;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
        }

        .category-card:nth-child(2) .category-card-badge {
            background: var(--primary-light);
            color: var(--primary);
        }

        .category-card-body h3 {
            font-size: 26px;
            font-weight: 900;
            margin-bottom: 10px;
        }

        .category-card-body p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 24px;
            flex: 1;
        }

        /* ============ 数据统计 ============ */
        .stats-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #0f6d8a 100%);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 260px;
            height: 260px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
        }

        .stats-section::after {
            content: "";
            position: absolute;
            left: -40px;
            bottom: -100px;
            width: 200px;
            height: 200px;
            background: rgba(239, 159, 14, 0.12);
            border-radius: 50%;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
            z-index: 2;
        }

        .stat-item {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            transition: background var(--speed) ease, transform var(--speed) ease;
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-4px);
        }

        .stat-num {
            font-size: 52px;
            font-weight: 900;
            color: #fff;
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        .stat-num .suffix {
            color: var(--accent);
            font-size: 32px;
        }

        .stat-label {
            color: rgba(255, 255, 255, 0.80);
            font-size: 14px;
            font-weight: 600;
            margin-top: 8px;
            letter-spacing: 0.04em;
        }

        /* ============ 最新资讯（CMS） ============ */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 30px;
            display: flex;
            flex-direction: column;
            transition: all var(--speed) ease;
        }

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: transparent;
        }

        .news-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 800;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.03em;
        }

        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        .news-date {
            font-size: 13px;
            color: var(--text-weak);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
        }

        .news-card-title {
            font-size: 18px;
            font-weight: 800;
            line-height: 1.5;
            margin-bottom: 12px;
        }

        .news-card-title a {
            color: var(--primary-dark);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .news-card-text {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 22px;
            flex: 1;
        }

        .news-card-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            transition: gap var(--speed) ease;
        }

        .news-card-more:hover {
            gap: 12px;
            color: var(--accent-dark);
        }

        .empty-tip {
            grid-column: 1 / -1;
            padding: 60px 24px;
            text-align: center;
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            color: var(--text-weak);
            font-size: 16px;
            font-weight: 500;
        }

        /* ============ 玩法流程 ============ */
        .steps-section {
            background: var(--white);
        }

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

        .step-item {
            position: relative;
            background: var(--body-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px 28px;
            transition: all var(--speed) ease;
        }

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

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            box-shadow: 0 6px 16px rgba(13, 92, 126, 0.30);
        }

        .step-item:nth-child(2) .step-num {
            background: var(--accent);
            box-shadow: 0 6px 16px rgba(239, 159, 14, 0.30);
        }

        .step-item:nth-child(3) .step-num {
            background: #1a9e54;
            box-shadow: 0 6px 16px rgba(26, 158, 84, 0.30);
        }

        .step-item:nth-child(4) .step-num {
            background: #6c63ff;
            box-shadow: 0 6px 16px rgba(108, 99, 255, 0.30);
        }

        .step-title {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .step-text {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.75;
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: box-shadow var(--speed) ease, border-color var(--speed) ease;
        }

        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .faq-item summary {
            padding: 24px 28px;
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            transition: color var(--speed) ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: all var(--speed) ease;
        }

        .faq-item[open] summary .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-item[open] summary {
            color: var(--primary);
        }

        .faq-a {
            padding: 0 28px 26px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.85;
        }

        .faq-a p {
            margin-bottom: 10px;
        }

        .faq-a p:last-child {
            margin-bottom: 0;
        }

        /* ============ CTA ============ */
        .cta-section {
            padding: calc(var(--space) + 8px) 0;
        }

        .cta-inner {
            position: relative;
            border-radius: 28px;
            overflow: hidden;
            background: linear-gradient(120deg, var(--primary-dark) 0%, var(--primary) 55%, #0f6d8a 100%);
            padding: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
        }

        .cta-inner::before {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            background: rgba(239, 159, 14, 0.2);
            border-radius: 50%;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            flex: 1;
            min-width: 280px;
        }

        .cta-content h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 900;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.80);
            font-size: 16px;
            line-height: 1.8;
            max-width: 520px;
        }

        .cta-actions {
            position: relative;
            z-index: 2;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: #0a1a24;
            padding: 56px 0 28px;
            color: rgba(255, 255, 255, 0.70);
        }

        .footer-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 48px;
            flex-wrap: wrap;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            flex: 1;
            min-width: 260px;
        }

        .footer-brand .brand-logo {
            color: #fff;
            font-size: 24px;
            margin-bottom: 14px;
            display: inline-block;
        }

        .footer-brand .brand-logo span {
            color: var(--accent);
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
            min-width: 160px;
        }

        .footer-links-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--speed) ease, padding-left var(--speed) ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        .footer-copyright {
            padding-top: 28px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.40);
            line-height: 1.8;
        }

        .footer-copyright a {
            color: rgba(255, 255, 255, 0.55);
        }

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

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

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

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .hero h1 {
                font-size: 44px;
            }

            .cta-inner {
                padding: 48px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space: 70px;
            }

            .site-header {
                position: sticky;
                top: 0;
                z-index: 200;
                padding: 10px 16px 0;
            }

            .dock-nav {
                margin: 0;
                max-width: 100%;
                border-radius: 18px;
                top: 0;
            }

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

            .dock-links {
                display: none;
                position: absolute;
                top: calc(100% + 10px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                border-radius: 18px;
                border: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                padding: 12px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
            }

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

            .nav-link {
                justify-content: center;
                padding: 12px 16px;
                border-radius: 14px;
            }

            .menu-toggle {
                display: inline-flex;
                align-items: center;
                gap: 6px;
            }

            .hero {
                margin-top: -80px;
                padding: 170px 0 130px;
            }

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

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

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

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

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

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

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

            .cta-inner {
                padding: 36px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-content h2 {
                font-size: 26px;
            }

            .section-title {
                font-size: 30px;
            }

            .footer-inner {
                flex-direction: column;
                gap: 32px;
            }
        }

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

            .hero {
                padding: 150px 0 110px;
            }

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

            .hero-actions .btn {
                width: 100%;
            }

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

            .stat-num {
                font-size: 40px;
            }

            .stat-label {
                font-size: 13px;
            }

            .feature-card {
                padding: 28px 22px;
            }

            .category-card-body {
                padding: 24px 20px 28px;
            }

            .category-card-img {
                height: 180px;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .footer-copyright {
                font-size: 12px;
            }

            .section {
                padding: 60px 0;
            }

            .section-head {
                margin-bottom: 40px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1a5cff;
            --primary-dark: #0e3fae;
            --primary-light: #e8eeff;
            --secondary: #ff6b35;
            --accent: #00b894;
            --dark-bg: #0c1222;
            --dark-card: #131c30;
            --white: #ffffff;
            --body-bg: #f4f7fc;
            --text: #1e2636;
            --text-muted: #63728c;
            --border: #e2e8f0;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(12, 25, 50, .06);
            --shadow-md: 0 8px 28px rgba(12, 25, 50, .10);
            --shadow-lg: 0 18px 50px rgba(12, 25, 50, .14);
            --transition: .25s cubic-bezier(.4, 0, .2, 1);
            --space-section: 96px;
        }
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background: var(--body-bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 0 20px;
        }
        .dock-nav {
            max-width: 1180px;
            margin: 0 auto;
            background: rgba(255, 255, 255, .88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(255, 255, 255, .7);
            box-shadow: var(--shadow-md);
            border-radius: 60px;
            padding: 12px 22px;
        }
        .dock-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .brand-logo {
            font-size: 21px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -.5px;
            display: inline-flex;
            align-items: center;
            gap: 2px;
        }
        .brand-logo b {
            color: var(--primary);
        }
        .brand-logo b span {
            color: var(--text);
            font-weight: 700;
        }
        .dock-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link.active {
            color: var(--white);
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(26, 92, 255, .3);
            font-weight: 600;
        }
        .dock-right {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(26, 92, 255, .3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(26, 92, 255, .4);
        }
        .btn-outline {
            border: 2px solid rgba(255, 255, 255, .7);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
        }
        .btn-light {
            background: #fff;
            color: var(--text);
            box-shadow: var(--shadow-sm);
        }
        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 17px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: var(--primary);
            color: #fff;
        }
        .hero-category {
            position: relative;
            padding: 130px 0 100px;
            background: linear-gradient(120deg, #081020 0%, #142a52 60%, #1a3a6b 100%);
            overflow: hidden;
        }
        .hero-category::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center;
            opacity: .25;
        }
        .hero-category::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(8, 16, 32, .6), rgba(8, 16, 32, .3));
        }
        .hero-category .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 18px;
            border-radius: 40px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            color: rgba(255, 255, 255, .95);
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 22px;
            backdrop-filter: blur(8px);
        }
        .hero-category h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: 16px;
            max-width: 680px;
        }
        .hero-category h1 span {
            color: #6ea8ff;
        }
        .hero-category .lead {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .8);
            max-width: 620px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }
        .hero-meta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .meta-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 50px;
            color: rgba(255, 255, 255, .85);
            font-size: 14px;
            font-weight: 500;
        }
        .meta-chip i {
            color: #6ea8ff;
        }
        .stat-section {
            padding: var(--space-section) 0 60px;
            margin-top: -36px;
            position: relative;
            z-index: 3;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .stat-card .num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-card .label {
            margin-top: 6px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .stat-card i {
            display: block;
            font-size: 20px;
            color: var(--secondary);
            margin-bottom: 12px;
        }
        .section-pad {
            padding: var(--space-section) 0;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-head .eyebrow {
            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: 40px;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--text);
            line-height: 1.3;
        }
        .section-head p {
            margin-top: 12px;
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.7;
        }
        .match-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .match-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .match-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .match-card .card-img {
            position: relative;
            height: 210px;
            overflow: hidden;
        }
        .match-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .match-card:hover .card-img img {
            transform: scale(1.06);
        }
        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            padding: 5px 14px;
            border-radius: 40px;
            background: rgba(12, 18, 34, .7);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
        }
        .card-tag.hot {
            background: var(--secondary);
        }
        .card-body {
            padding: 24px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text);
            transition: var(--transition);
        }
        .match-card:hover .card-body h3 {
            color: var(--primary);
        }
        .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .card-meta .date {
            font-size: 13px;
            color: var(--text-muted);
        }
        .card-meta .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }
        .card-meta .read-more:hover {
            gap: 8px;
        }
        .news-section {
            background: var(--white);
            padding: var(--space-section) 0;
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1.2fr .8fr;
            gap: 50px;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: grid;
            grid-template-columns: 110px 1fr auto;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            align-items: center;
        }
        .news-item:first-child {
            padding-top: 0;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-thumb {
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 74px;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .news-item:hover .news-thumb img {
            transform: scale(1.08);
        }
        .news-content .news-date {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 6px;
        }
        .news-content h4 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.6;
            color: var(--text);
            transition: var(--transition);
        }
        .news-item:hover .news-content h4 {
            color: var(--primary);
        }
        .news-arrow {
            color: var(--border);
            font-size: 18px;
            transition: var(--transition);
        }
        .news-item:hover .news-arrow {
            color: var(--primary);
            transform: translateX(4px);
        }
        .side-panel {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            color: #fff;
            position: sticky;
            top: 100px;
        }
        .side-panel h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-panel>p {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            margin-bottom: 26px;
        }
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .hot-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-num {
            width: 30px;
            height: 30px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: rgba(255, 255, 255, .8);
            flex-shrink: 0;
        }
        .hot-list li:nth-child(1) .hot-num,
        .hot-list li:nth-child(2) .hot-num,
        .hot-list li:nth-child(3) .hot-num {
            background: var(--secondary);
            color: #fff;
        }
        .hot-list li a {
            font-size: 14px;
            line-height: 1.5;
            color: rgba(255, 255, 255, .85);
            transition: var(--transition);
        }
        .hot-list li a:hover {
            color: #6ea8ff;
        }
        .guide-section {
            padding: var(--space-section) 0;
        }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .guide-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 34px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .guide-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
            transform: scaleX(0);
            transition: var(--transition);
            transform-origin: left;
        }
        .guide-card:hover::before {
            transform: scaleX(1);
        }
        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .guide-step {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .guide-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin: 12px 0 10px;
            color: var(--text);
        }
        .guide-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .guide-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 18px;
        }
        .faq-section {
            background: var(--white);
            padding: var(--space-section) 0;
        }
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--body-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            transition: var(--transition);
        }
        .faq-q i {
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-q i {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-a-inner {
            padding: 0 26px 22px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }
        .cta-banner {
            position: relative;
            padding: 80px 0;
            background: linear-gradient(120deg, #0c1222, #1a3a6b);
            text-align: center;
            overflow: hidden;
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-2.png");
            background-size: cover;
            background-position: center;
            opacity: .18;
        }
        .cta-banner .container {
            position: relative;
            z-index: 2;
        }
        .cta-banner h2 {
            font-size: 34px;
            color: #fff;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-banner p {
            color: rgba(255, 255, 255, .75);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .site-footer {
            background: var(--dark-bg);
            padding: 70px 0 0;
            color: #fff;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1.3fr .8fr .9fr;
            gap: 50px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand .brand-logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .brand-logo b {
            color: #6ea8ff;
        }
        .footer-brand .brand-logo b span {
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-links-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, .5);
            padding: 5px 0;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a i {
            font-size: 11px;
            color: rgba(255, 255, 255, .25);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #6ea8ff;
            padding-left: 4px;
        }
        .footer-links a:hover i {
            color: #6ea8ff;
        }
        .footer-copyright {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .35);
        }
        .footer-copyright p {
            margin: 0;
        }
        @media (max-width: 1024px) {
            .match-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .side-panel {
                position: static;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                top: 10px;
                padding: 0 14px;
            }
            .dock-nav {
                border-radius: 24px;
                padding: 10px 16px;
            }
            .dock-inner {
                flex-wrap: wrap;
            }
            .menu-toggle {
                display: flex;
            }
            .dock-links {
                display: none;
                width: 100%;
                flex-direction: column;
                background: var(--white);
                border-radius: 18px;
                padding: 10px;
                margin-top: 8px;
                box-shadow: var(--shadow-md);
                align-items: stretch;
                text-align: center;
            }
            .dock-links.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 18px;
                border-radius: 12px;
            }
            .nav-link.active {
                background: var(--primary);
                color: #fff;
            }
            .dock-right .btn {
                display: none;
            }
            .hero-category {
                padding: 100px 0 80px;
            }
            .hero-category h1 {
                font-size: 34px;
            }
            .hero-category .lead {
                font-size: 16px;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .match-grid {
                grid-template-columns: 1fr;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .news-thumb {
                height: 180px;
            }
            .news-arrow {
                display: none;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-card .num {
                font-size: 28px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .faq-q {
                padding: 18px 18px;
                font-size: 15px;
            }
            .faq-a-inner {
                padding: 0 18px 18px;
            }
        }
        @media (max-width: 520px) {
            :root {
                --space-section: 64px;
            }
            .dock-inner {
                gap: 8px;
            }
            .dock-right {
                gap: 4px;
            }
            .hero-category h1 {
                font-size: 27px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .guide-card {
                padding: 24px 20px;
            }
            .cta-banner h2 {
                font-size: 26px;
            }
            .section-head h2 {
                font-size: 24px;
            }
        }

/* roulang page: article */
:root {
            --primary: #1e3a8a;
            --primary-light: #3b82f6;
            --accent: #d97706;
            --accent-light: #fbbf24;
            --bg: #f6f7fb;
            --surface: #ffffff;
            --text-main: #0f172a;
            --text-body: #334155;
            --text-weak: #64748b;
            --border: #e5e7eb;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 9px;
            --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.05);
            --shadow-md: 0 14px 36px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 28px 64px rgba(15, 23, 42, 0.12);
            --space-section: 88px;
            --space-section-sm: 52px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
            line-height: 1.4;
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
            border-radius: 40px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(30, 58, 138, 0.22);
        }
        .btn-primary:hover {
            background: #162a66;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(30, 58, 138, 0.3);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 18px rgba(217, 119, 6, 0.22);
        }
        .btn-accent:hover {
            background: #b86204;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(217, 119, 6, 0.3);
        }
        .btn-outline {
            background: transparent;
            border-color: #cbd5e1;
            color: var(--text-main);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn:focus-visible,
        .nav-link:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(59, 130, 246, .45);
            outline-offset: 3px;
        }
        .site-header {
            padding: 22px 24px 0;
            background: transparent;
        }
        .dock-nav {
            max-width: 1180px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.86);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-radius: 60px;
            padding: 12px 26px;
            box-shadow: 0 10px 40px rgba(15, 23, 42, 0.08), 0 0 0 1px rgba(229, 231, 235, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.6);
        }
        .dock-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
        }
        .brand-logo {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.5px;
            display: flex;
            align-items: baseline;
            gap: 2px;
            white-space: nowrap;
        }
        .brand-logo b {
            color: var(--primary);
            font-weight: 800;
        }
        .brand-logo span {
            color: var(--accent);
            font-weight: 600;
            font-size: 17px;
        }
        .dock-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: all .22s ease;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 58, 138, 0.07);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 5px 16px rgba(30, 58, 138, 0.25);
        }
        .nav-link.active:hover {
            background: var(--primary);
            color: #fff;
        }
        .dock-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-main);
            font-size: 17px;
            cursor: pointer;
            transition: all .2s ease;
        }
        .menu-toggle:hover {
            background: #eef0f5;
        }
        .article-hero {
            position: relative;
            padding: 90px 0 110px;
            background: linear-gradient(135deg, rgba(30, 58, 138, .92), rgba(59, 130, 246, .82)), url('/assets/images/backpic/back-2.png') center/cover;
            color: #fff;
        }
        .article-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 80% 20%, rgba(251, 191, 36, .18), transparent 55%);
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .hero-breadcrumb a:hover {
            color: #fff;
        }
        .hero-breadcrumb i {
            font-size: 10px;
            opacity: .6;
        }
        .hero-cat {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .18);
            border: 1px solid rgba(255, 255, 255, .25);
            padding: 7px 18px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 22px;
            backdrop-filter: blur(6px);
        }
        .hero-cat i {
            color: var(--accent-light);
        }
        .article-hero h1 {
            font-size: clamp(28px, 5vw, 46px);
            font-weight: 800;
            line-height: 1.2;
            max-width: 860px;
            margin-bottom: 18px;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .article-hero .hero-desc {
            font-size: 17px;
            line-height: 1.7;
            max-width: 720px;
            color: rgba(255, 255, 255, .88);
            margin-bottom: 26px;
        }
        .hero-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: rgba(255, 255, 255, .78);
        }
        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .hero-meta i {
            color: var(--accent-light);
        }
        .article-main {
            padding: 40px 0 70px;
            margin-top: -52px;
            position: relative;
            z-index: 3;
        }
        .article-body-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 46px 48px;
            border: 1px solid rgba(229, 231, 235, .7);
        }
        .article-content {
            font-size: 16.5px;
            line-height: 1.9;
            color: #374151;
        }
        .article-content p {
            margin-bottom: 1.4rem;
        }
        .article-content h2 {
            font-size: 23px;
            font-weight: 700;
            color: var(--text-main);
            margin: 2.2rem 0 1rem;
            padding-top: .6rem;
        }
        .article-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin: 1.8rem 0 .8rem;
        }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 1.6rem 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg);
            padding: 16px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.6rem 0;
            color: var(--text-weak);
            font-style: italic;
        }
        .article-content ul {
            padding-left: 0;
            margin: 1.2rem 0;
        }
        .article-content ul li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 9px;
        }
        .article-content ul li::before {
            content: "\f058";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--primary-light);
            font-size: 15px;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6rem 0;
            font-size: 15px;
        }
        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 12px 16px;
            text-align: left;
        }
        .article-content table th {
            background: var(--bg);
            font-weight: 700;
            color: var(--text-main);
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover {
            color: var(--accent);
        }
        .article-tags {
            margin-top: 34px;
            padding-top: 26px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }
        .article-tags .tag-label {
            color: var(--text-weak);
            font-size: 14px;
            font-weight: 600;
        }
        .tag {
            display: inline-block;
            background: var(--bg);
            border: 1px solid var(--border);
            padding: 6px 15px;
            border-radius: 30px;
            font-size: 13px;
            color: var(--text-body);
            transition: all .2s ease;
        }
        .tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(30, 58, 138, .04);
        }
        .tag-accent {
            background: rgba(217, 119, 6, .08);
            border-color: rgba(217, 119, 6, .2);
            color: var(--accent);
            font-weight: 600;
        }
        .sidebar-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, .7);
            padding: 26px 26px 22px;
            margin-bottom: 26px;
        }
        .sidebar-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 9px;
        }
        .sidebar-title i {
            color: var(--accent);
            font-size: 15px;
        }
        .latest-list {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .latest-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 4px;
            border-radius: 8px;
            transition: background .2s ease, padding-left .2s ease;
            font-size: 14.5px;
            line-height: 1.4;
            color: var(--text-body);
            border-bottom: 1px solid #f1f5f9;
        }
        .latest-item:last-child {
            border-bottom: none;
        }
        .latest-item:hover {
            background: var(--bg);
            padding-left: 10px;
            color: var(--primary);
        }
        .latest-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
            box-shadow: 0 0 0 4px rgba(217, 119, 6, .12);
        }
        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border-radius: 10px;
            background: var(--bg);
            border: 1px solid transparent;
            color: var(--text-body);
            font-size: 14.5px;
            font-weight: 500;
            margin-bottom: 10px;
            transition: all .2s ease;
        }
        .sidebar-link i {
            color: var(--primary);
            font-size: 12px;
            transition: transform .2s ease;
        }
        .sidebar-link:hover {
            background: rgba(30, 58, 138, .06);
            border-color: rgba(30, 58, 138, .14);
            color: var(--primary);
        }
        .sidebar-link:hover i {
            transform: translateX(4px);
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), #2563eb);
            border: none;
            color: #fff;
            border-radius: var(--radius-md);
            padding: 30px 22px;
            text-align: center;
        }
        .sidebar-cta h3 {
            font-size: 18px;
            color: #fff;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .sidebar-cta p {
            font-size: 13.5px;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 18px;
            line-height: 1.6;
        }
        .sidebar-cta .btn {
            background: var(--accent);
            color: #fff;
            width: 100%;
        }
        .sidebar-cta .btn:hover {
            background: #b86204;
        }
        .sidebar-card.card-cover {
            padding: 0;
            overflow: hidden;
        }
        .sidebar-card.card-cover img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }
        .card-cover-body {
            padding: 20px 22px 22px;
        }
        .card-cover-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .card-cover-body p {
            font-size: 13.5px;
            color: var(--text-weak);
            line-height: 1.6;
        }
        .related-section {
            padding: 30px 0 90px;
        }
        .related-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            gap: 16px;
        }
        .related-header h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-main);
            position: relative;
            padding-left: 18px;
        }
        .related-header h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            height: 24px;
            width: 5px;
            background: var(--accent);
            border-radius: 4px;
        }
        .related-header .btn {
            flex-shrink: 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, .6);
            transition: transform .28s ease, box-shadow .28s ease;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 20px 20px 24px;
        }
        .related-card-body .cat-badge {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(30, 58, 138, .07);
            padding: 4px 12px;
            border-radius: 20px;
            text-transform: uppercase;
            letter-spacing: .4px;
            margin-bottom: 10px;
        }
        .related-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .related-card-body h3 a:hover {
            color: var(--primary);
        }
        .related-card-body .meta {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            gap: 14px;
            align-items: center;
        }
        .not-found-hero {
            padding: 110px 0 80px;
            text-align: center;
            background: linear-gradient(180deg, rgba(30, 58, 138, .04), transparent);
        }
        .not-found-hero .icon-box {
            width: 80px;
            height: 80px;
            border-radius: 24px;
            background: rgba(30, 58, 138, .07);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 34px;
            color: var(--primary);
            margin-bottom: 26px;
        }
        .not-found-hero h1 {
            font-size: 40px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .not-found-hero p {
            font-size: 17px;
            color: var(--text-weak);
            margin-bottom: 32px;
        }
        .not-found-body {
            padding-bottom: 70px;
        }
        .cta-section {
            padding: 86px 0;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(30, 58, 138, .95), rgba(37, 99, 235, .85)), url('/assets/images/backpic/back-3.png') center/cover;
            color: #fff;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(217, 119, 6, .18);
            filter: blur(60px);
        }
        .cta-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 16px;
            opacity: .85;
            max-width: 560px;
            line-height: 1.7;
        }
        .cta-section .btn {
            flex-shrink: 0;
        }
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 70px 0 30px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            border-bottom: 1px solid rgba(148, 163, 184, .15);
            padding-bottom: 44px;
        }
        .footer-brand .brand-logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 14.5px;
            line-height: 1.8;
            color: #94a3b8;
            max-width: 360px;
        }
        .footer-links-title {
            display: block;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 11px;
        }
        .footer-links a {
            font-size: 14px;
            color: #94a3b8;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .2s ease;
        }
        .footer-links a i {
            font-size: 11px;
            color: #64748b;
            transition: transform .2s ease;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-links a:hover i {
            transform: translateX(4px);
            color: var(--accent-light);
        }
        .footer-copyright {
            padding-top: 26px;
            text-align: center;
            font-size: 13.5px;
            color: #64748b;
        }
        .footer-copyright p {
            margin: 0;
        }
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .article-body-card {
                padding: 36px;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 64px;
            }
            .dock-nav {
                padding: 10px 16px;
                border-radius: 44px;
            }
            .dock-links {
                position: absolute;
                top: calc(100% + 8px);
                left: 50%;
                transform: translateX(-50%) translateY(-8px);
                background: #fff;
                border-radius: 16px;
                box-shadow: var(--shadow-lg);
                flex-direction: column;
                padding: 14px;
                width: calc(100% - 40px);
                gap: 6px;
                opacity: 0;
                visibility: hidden;
                transition: all .28s ease;
                z-index: 999;
            }
            .dock-links.open {
                opacity: 1;
                visibility: visible;
                transform: translateX(-50%) translateY(0);
            }
            .nav-link {
                width: 100%;
                justify-content: center;
                padding: 12px;
            }
            .menu-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .dock-inner {
                position: relative;
            }
            .dock-right .btn {
                display: none;
            }
            .article-hero {
                padding: 70px 0 90px;
            }
            .article-main {
                padding: 30px 0 50px;
                margin-top: -38px;
            }
            .article-body-card {
                padding: 26px 20px;
                border-radius: 16px;
            }
            .sidebar-card {
                padding: 20px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-flex {
                flex-direction: column;
                text-align: center;
            }
            .cta-section p {
                margin: 0 auto;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 20px;
            }
            .dock-nav {
                padding: 8px 12px;
                border-radius: 36px;
            }
            .brand-logo {
                font-size: 20px;
            }
            .brand-logo span {
                font-size: 15px;
            }
            .article-hero h1 {
                font-size: 26px;
            }
            .article-content {
                font-size: 15.5px;
            }
            .article-content table {
                font-size: 13px;
                overflow-x: auto;
                display: block;
                white-space: nowrap;
            }
            .hero-meta {
                gap: 12px;
                flex-wrap: wrap;
            }
            .related-section {
                padding-bottom: 60px;
            }
            .sidebar-cta {
                padding: 24px 18px;
            }
        }
        .cell {
            padding-bottom: 0;
        }
        .article-main .grid-x {
            margin-left: -14px;
            margin-right: -14px;
        }
        .article-main .cell {
            padding-left: 14px;
            padding-right: 14px;
        }

/* roulang page: category2 */
:root {
  --primary: #1e5eff;
  --primary-dark: #0f3fd8;
  --primary-light: #e8eeff;
  --accent: #ff7a1a;
  --accent-light: #fff1e6;
  --bg: #f7f9fc;
  --bg-white: #ffffff;
  --bg-dark: #0e1a2f;
  --text: #152a44;
  --text-weak: #5b6b83;
  --border: #e3e9f2;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 4px 18px rgba(21, 42, 68, 0.08);
  --shadow-md: 0 10px 32px rgba(21, 42, 68, 0.13);
  --shadow-lg: 0 18px 52px rgba(21, 42, 68, 0.18);
  --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); transition: var(--transition); text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3, h4, h5 { margin: 0; color: var(--text); }
ul, ol { margin: 0; padding: 0; list-style: none; }
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-sm { max-width: 880px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 40px;
  padding: 12px 26px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
}
.btn:focus-visible { outline: 3px solid rgba(30, 94, 255, 0.4); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(30, 94, 255, 0.3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(30, 94, 255, 0.36); }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-outline-light { background: transparent; color: #fff; border: 2px solid rgba(255, 255, 255, 0.65); }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.15); border-color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 13px 30px; font-size: 16px; }

/* Header / Dock Nav */
.site-header {
  position: sticky;
  top: 14px;
  z-index: 100;
  padding: 0 20px;
}
.dock-nav {
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 60px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  padding: 10px 24px;
}
.dock-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand-logo { font-size: 22px; font-weight: 800; color: var(--bg-dark); letter-spacing: -0.02em; }
.brand-logo b { color: var(--primary); font-weight: 800; }
.brand-logo span { color: var(--accent); }
.dock-links { display: flex; align-items: center; gap: 8px; }
.nav-link {
  padding: 8px 18px;
  border-radius: 40px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text-weak);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover { background: var(--primary-light); color: var(--primary); }
.nav-link.active { background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(30, 94, 255, 0.32); }
.dock-right { display: flex; align-items: center; gap: 10px; }
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  border: none;
  font-size: 17px;
  cursor: pointer;
  transition: var(--transition);
}
.menu-toggle:hover { background: var(--primary); color: #fff; }

/* Hero */
.category-hero {
  position: relative;
  padding: 130px 0 80px;
  background: linear-gradient(135deg, rgba(14, 26, 47, 0.9), rgba(30, 94, 255, 0.78)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  margin-top: -66px;
  border-radius: 0 0 32px 32px;
  overflow: hidden;
}
.category-hero::after {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(255, 122, 26, 0.35), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.85); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: rgba(255, 255, 255, 0.5); }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 8px 18px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
  position: relative;
  z-index: 1;
}
.hero-badge i { color: #ffd166; }
.hero-title {
  font-size: 44px;
  line-height: 1.22;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  max-width: 760px;
  position: relative;
  z-index: 1;
}
.hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
  max-width: 700px;
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; position: relative; z-index: 1; }

/* Section base */
.section { padding: 72px 0; }
.section-head { text-align: center; max-width: 740px; margin: 0 auto 42px; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.section-tag i { font-size: 12px; }
.section-title { font-size: 32px; font-weight: 800; line-height: 1.25; margin-bottom: 10px; }
.section-subtitle { font-size: 15px; color: var(--text-weak); line-height: 1.75; }

/* Stats & Tags */
.stats-section { background: var(--bg-white); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 36px;
}
.stat-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.stat-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.stat-number {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.stat-label { font-size: 14px; color: var(--text-weak); margin-top: 8px; }
.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
  padding-top: 8px;
}
.topic-label { font-weight: 700; color: var(--text); font-size: 14px; }
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  padding: 9px 18px;
  border-radius: 40px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  transition: var(--transition);
}
.tag-chip:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); transform: translateY(-2px); }
.tag-chip i { color: var(--accent); font-size: 12px; }

/* Guide Cards */
.guide-cards { background: var(--bg); }
.guide-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.guide-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.guide-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.guide-card-img-wrap { position: relative; overflow: hidden; aspect-ratio: 16 / 10; display: block; }
.guide-card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.guide-card:hover .guide-card-img-wrap img { transform: scale(1.05); }
.guide-card-body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.guide-card-tag {
  align-self: flex-start;
  display: inline-flex;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 30px;
  margin-bottom: 10px;
}
.guide-card-title { font-size: 18px; font-weight: 800; color: var(--text); line-height: 1.45; margin-bottom: 8px; }
.guide-card-desc { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin-bottom: 14px; flex: 1; }
.guide-card-link {
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.guide-card-link:hover { gap: 12px; color: var(--primary-dark); }

/* Article List */
.article-section { background: var(--bg-white); }
.article-list { display: flex; flex-direction: column; gap: 16px; }
.article-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: var(--transition);
}
.article-item:hover { box-shadow: var(--shadow-md); border-color: var(--primary-light); transform: translateY(-3px); }
.article-index {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
}
.article-content { flex: 1; min-width: 0; }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  color: var(--text-weak);
  margin-bottom: 6px;
}
.article-meta .tag { color: var(--accent); font-weight: 700; }
.article-meta i { margin-right: 4px; font-size: 12px; }
.article-title { font-size: 17px; font-weight: 800; color: var(--text); margin-bottom: 6px; line-height: 1.5; }
.article-title a { color: inherit; }
.article-title a:hover { color: var(--primary); }
.article-desc { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin-bottom: 8px; }
.article-link { font-size: 14px; color: var(--primary); font-weight: 700; display: inline-flex; align-items: center; gap: 6px; }
.article-link:hover { gap: 10px; color: var(--primary-dark); }

/* Steps */
.steps-section { background: var(--bg); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step-item {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 30px 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition);
}
.step-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.step-num {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 8px 20px rgba(30, 94, 255, 0.32);
}
.step-title { font-size: 18px; font-weight: 800; color: var(--text); margin-bottom: 8px; }
.step-desc { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin-bottom: 0; }

/* Compare Table */
.compare-section { background: var(--bg-white); }
.compare-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.compare-table { width: 100%; border-collapse: collapse; background: var(--bg-white); min-width: 680px; }
.compare-table th { background: var(--bg-dark); color: #fff; font-weight: 700; font-size: 14px; }
.compare-table th, .compare-table td { padding: 16px 20px; text-align: left; border-bottom: 1px solid var(--border); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table td { font-size: 14px; color: var(--text); border-right: 1px solid var(--border); }
.compare-table td:last-child { border-right: none; }
.compare-table tr:hover td { background: #f8faff; }

/* FAQ */
.faq-section { background: var(--bg); }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
.faq-item summary {
  cursor: pointer;
  padding: 20px 24px;
  font-weight: 700;
  font-size: 15px;
  color: var(--text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '\f107';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  color: var(--primary);
  font-size: 18px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-answer {
  padding: 0 24px 22px;
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.8;
}

/* CTA */
.cta-section { background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg) 100%); padding: 72px 0 90px; }
.cta-card {
  background: linear-gradient(135deg, var(--bg-dark), #16294a);
  border-radius: 28px;
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-card::before {
  content: '';
  position: absolute;
  top: -100px;
  left: -100px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(255, 122, 26, 0.4), transparent 70%);
  border-radius: 50%;
}
.cta-card::after {
  content: '';
  position: absolute;
  bottom: -90px;
  right: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(30, 94, 255, 0.5), transparent 70%);
  border-radius: 50%;
}
.cta-title { color: #fff; font-size: 30px; font-weight: 800; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-desc { color: rgba(255, 255, 255, 0.78); max-width: 620px; margin: 0 auto 30px; line-height: 1.8; font-size: 15px; position: relative; z-index: 1; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; position: relative; z-index: 1; }

/* Footer */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 0 32px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 44px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.footer-brand .brand-logo { color: #fff; }
.footer-brand .brand-logo b { color: var(--primary); }
.footer-brand .brand-logo span { color: var(--accent); }
.footer-desc { color: rgba(255, 255, 255, 0.6); font-size: 14px; line-height: 1.8; margin-top: 16px; max-width: 360px; }
.footer-links-title { color: #fff; font-weight: 700; font-size: 16px; margin-bottom: 14px; display: block; }
.footer-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.65);
  padding: 6px 0;
  font-size: 14px;
  transition: var(--transition);
}
.footer-links a:hover { color: #fff; padding-left: 5px; }
.footer-links a i { font-size: 12px; color: var(--primary); }
.footer-copyright { text-align: center; padding-top: 24px; font-size: 13px; color: rgba(255, 255, 255, 0.45); }
.footer-copyright p { margin: 0; }

/* Responsive */
@media (max-width: 1024px) {
  .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 38px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .site-header { top: 10px; padding: 0 12px; }
  .dock-nav { padding: 10px 16px; border-radius: 40px; }
  .dock-inner { flex-wrap: wrap; }
  .menu-toggle { display: inline-flex; }
  .dock-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 14px;
    flex-direction: column;
    gap: 6px;
    display: none;
    border: 1px solid var(--border);
  }
  .dock-links.open { display: flex; }
  .nav-link { padding: 12px 16px; border-radius: 12px; }
  .dock-nav { position: relative; }
  .category-hero { padding: 110px 0 60px; margin-top: -58px; }
  .hero-title { font-size: 32px; }
  .hero-subtitle { font-size: 16px; }
  .section { padding: 56px 0; }
  .section-title { font-size: 28px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .guide-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .article-item { flex-direction: row; }
  .cta-card { padding: 48px 24px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 520px) {
  .hero-title { font-size: 26px; }
  .hero-subtitle { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn { width: 100%; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-item { padding: 20px 12px; }
  .stat-number { font-size: 26px; }
  .article-item { flex-direction: column; }
  .article-index { width: 38px; height: 38px; font-size: 16px; border-radius: 10px; }
  .cta-card { padding: 40px 20px; }
  .cta-title { font-size: 24px; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .footer-inner { gap: 28px; }
}