/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b1f4b;
            --primary-light: #16357a;
            --primary-deep: #07122e;
            --accent: #f0a500;
            --accent-dark: #d68e00;
            --accent-gradient: linear-gradient(135deg, #f0a500 0%, #ffc94d 100%);
            --surface: #ffffff;
            --surface-soft: #f5f7fc;
            --bg: #f7f9fe;
            --text: #12182b;
            --text-muted: #5d6679;
            --border: #e5eaf3;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow-sm: 0 4px 16px rgba(11, 31, 75, 0.06);
            --shadow: 0 12px 32px rgba(11, 31, 75, 0.08);
            --shadow-hover: 0 20px 48px rgba(11, 31, 75, 0.16);
            --spacer: 96px;
            --spacer-sm: 60px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        p,
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 按钮系统 ===== */
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent-gradient);
            color: #0b1f4b;
            border: none;
            border-radius: 50px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            box-shadow: 0 8px 24px rgba(240, 165, 0, 0.25);
            transition: all .25s ease;
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(240, 165, 0, 0.35);
            color: #07122e;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            border-radius: 50px;
            padding: 10px 26px;
            font-weight: 500;
            transition: all .25s ease;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }
        .btn-dark-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            padding: 12px 28px;
            font-weight: 600;
            border: none;
            transition: all .25s ease;
        }
        .btn-dark-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(11, 31, 75, 0.2);
            color: #fff;
        }

        /* ===== 导航栏 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(11, 31, 75, 0.03);
        }
        .site-header .navbar {
            padding-top: 14px;
            padding-bottom: 14px;
        }
        .brand-text {
            font-weight: 800;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }
        .brand-text span {
            color: var(--accent);
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 18px;
            border-radius: 50px;
            position: relative;
            transition: background .2s, color .2s;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(11, 31, 75, 0.04);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(11, 31, 75, 0.06);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            padding: 6px 10px;
            color: var(--primary);
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(11,31,75,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
            padding: 140px 0 100px;
            background: linear-gradient(120deg, rgba(7, 18, 46, 0.92) 0%, rgba(11, 31, 75, 0.82) 55%, rgba(22, 53, 122, 0.75) 100%),
                url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -60px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(240, 165, 0, 0.35) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(240, 165, 0, 0.18);
            border: 1px solid rgba(240, 165, 0, 0.4);
            color: #ffd477;
            border-radius: 50px;
            padding: 7px 20px;
            font-size: 14px;
            font-weight: 500;
            backdrop-filter: blur(4px);
            margin-bottom: 28px;
        }
        .hero-title {
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 22px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
        }
        .hero-title .highlight {
            background: var(--accent-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-sub {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 56px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.18);
            max-width: 560px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat strong {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
        }
        .hero-stat span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }
        .hero-card-wrap {
            position: relative;
            z-index: 2;
        }
        .hero-feature-card {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(20px);
            border-radius: var(--radius);
            padding: 36px 30px;
            height: 100%;
            transition: background .3s, transform .3s;
        }
        .hero-feature-card:hover {
            background: rgba(255, 255, 255, 0.16);
            transform: translateY(-6px);
        }
        .hero-feature-card .icon-wrap {
            width: 52px;
            height: 52px;
            background: var(--accent-gradient);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #0b1f4b;
            margin-bottom: 20px;
            box-shadow: 0 8px 20px rgba(240, 165, 0, 0.3);
        }
        .hero-feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: #fff;
        }
        .hero-feature-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 区块通用 ===== */
        .section {
            padding: var(--spacer) 0;
        }
        .section-sm {
            padding: var(--spacer-sm) 0;
        }
        .section-alt {
            background: var(--surface-soft);
        }
        .section-head {
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(240, 165, 0, 0.12);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: clamp(26px, 3.4vw, 38px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
        }

        /* ===== 平台优势卡片 ===== */
        .advantage-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px;
            height: 100%;
            transition: transform .3s, box-shadow .3s;
        }
        .advantage-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .advantage-card .adv-icon {
            width: 60px;
            height: 60px;
            background: var(--surface-soft);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 25px;
            color: var(--primary);
            margin-bottom: 22px;
            transition: background .3s, color .3s;
        }
        .advantage-card:hover .adv-icon {
            background: var(--accent-gradient);
            color: #0b1f4b;
        }
        .advantage-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .advantage-card p {
            font-size: 14.5px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ===== 分类入口 ===== */
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            height: 340px;
            background: var(--primary);
            transition: transform .3s, box-shadow .3s;
            display: block;
        }
        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }
        .category-card .cat-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.6;
            transition: transform .4s, opacity .3s;
        }
        .category-card:hover .cat-bg {
            transform: scale(1.05);
            opacity: 0.7;
        }
        .category-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(7, 18, 46, 0.95) 0%, rgba(7, 18, 46, 0.3) 60%, rgba(7, 18, 46, 0.1) 100%);
            z-index: 1;
        }
        .category-card .cat-body {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 30px;
            z-index: 2;
        }
        .category-card .cat-number {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 1px;
            margin-bottom: 10px;
            background: rgba(240, 165, 0, 0.2);
            border-radius: 20px;
            padding: 4px 14px;
        }
        .category-card h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .category-card p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .category-card .cat-link {
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== 最新资讯列表 ===== */
        .news-panel {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 36px;
            box-shadow: var(--shadow-sm);
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 12px;
            border-bottom: 1px solid var(--border);
            transition: background .2s, padding-left .2s;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            background: var(--surface-soft);
            padding-left: 20px;
        }
        .news-tag {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            background: rgba(11, 31, 75, 0.06);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            white-space: nowrap;
        }
        .news-title {
            flex: 1;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .news-item:hover .news-title {
            color: var(--primary);
        }
        .news-date {
            flex: 0 0 auto;
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .news-side-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: transform .3s, box-shadow .3s;
        }
        .news-side-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .news-side-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .news-side-body {
            padding: 24px;
        }
        .news-side-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .news-side-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 数据统计区 ===== */
        .stats-section {
            background: linear-gradient(120deg, #07122e 0%, #0b1f4b 70%, #16357a 100%);
            color: #fff;
            padding: 80px 0;
        }
        .stat-item {
            text-align: center;
            padding: 20px;
        }
        .stat-item .stat-num {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 6px;
            background: var(--accent-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== 资讯卡片 ===== */
        .article-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: transform .3s, box-shadow .3s;
        }
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .article-card .article-img {
            position: relative;
            overflow: hidden;
        }
        .article-card .article-img img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            transition: transform .4s;
        }
        .article-card:hover .article-img img {
            transform: scale(1.06);
        }
        .article-card .article-cat {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .article-card .article-body {
            padding: 24px;
        }
        .article-card .article-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text);
            margin-bottom: 10px;
            transition: color .2s;
        }
        .article-card:hover .article-body h3 {
            color: var(--primary);
        }
        .article-card .article-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .article-card .article-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 14px;
            overflow: hidden;
            background: var(--surface);
            box-shadow: none !important;
        }
        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: var(--surface);
            padding: 20px 24px;
            border: none;
            box-shadow: none !important;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--surface-soft);
        }
        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent);
        }
        .accordion-button::after {
            background-size: 14px;
        }
        .accordion-body {
            padding: 0 24px 20px;
            font-size: 14.5px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: linear-gradient(120deg, rgba(7, 18, 46, 0.94), rgba(11, 31, 75, 0.86)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 32px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #07122e;
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 0;
        }
        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand span {
            color: var(--accent);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 340px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color .2s, padding-left .2s;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
            margin-top: 50px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-section {
                padding: 130px 0 80px;
                min-height: auto;
            }
            .section {
                --spacer: 76px;
            }
        }
        @media (max-width: 768px) {
            .section {
                --spacer: 56px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-stats {
                gap: 16px;
            }
            .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                padding: 20px;
                margin-top: 12px;
                box-shadow: var(--shadow);
            }
            .navbar-nav {
                gap: 4px;
                margin-bottom: 12px;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px;
            }
            .news-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .news-title {
                flex: 0 0 100%;
                white-space: normal;
            }
            .news-date {
                font-size: 12px;
            }
            .category-card {
                height: 280px;
            }
            .stat-item .stat-num {
                font-size: 32px;
            }
            .hero-feature-card {
                margin-bottom: 16px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-title {
                font-size: 27px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-accent,
            .hero-actions .btn-outline-light {
                justify-content: center;
            }
            .news-panel {
                padding: 20px;
            }
            .category-card {
                height: 240px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 可访问性 ===== */
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible {
            outline: 3px solid rgba(240, 165, 0, 0.5);
            outline-offset: 2px;
        }

/* roulang page: category1 */
:root {
            --primary: #0f1e3d;
            --primary-light: #1a2f5a;
            --accent: #e8a33d;
            --accent-hover: #d48f2a;
            --accent-soft: rgba(232, 163, 61, 0.12);
            --bg-body: #f5f7fb;
            --bg-white: #ffffff;
            --bg-dark: #0a1428;
            --text-main: #1e2a3a;
            --text-muted: #64748b;
            --border-color: #e8ecf3;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(15, 30, 61, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 30, 61, 0.08);
            --shadow-lg: 0 16px 40px rgba(15, 30, 61, 0.12);
            --transition-base: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            margin: 0;
            padding: 0;
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

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

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

        .section-head {
            margin-bottom: 44px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-soft);
            color: var(--accent);
            font-weight: 700;
            font-size: 13px;
            letter-spacing: 0.5px;
            padding: 6px 16px;
            border-radius: 100px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 34px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin-bottom: 14px;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 680px;
            line-height: 1.8;
        }

        .btn {
            border-radius: 50px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }

        .btn-accent {
            background: var(--accent);
            border: 1px solid var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(232, 163, 61, 0.3);
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 163, 61, 0.35);
        }

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

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        .btn-outline-light {
            background: transparent;
            border: 2px solid var(--border-color);
            color: var(--text-main);
        }

        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-soft);
        }

        /* ===== Site Header ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(15, 30, 61, 0.04);
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .brand-text {
            font-size: 22px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .brand-text span {
            color: var(--accent);
            font-weight: 700;
        }

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

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 18px !important;
            border-radius: 50px;
            position: relative;
        }

        .navbar-nav .nav-link:hover {
            color: var(--accent);
        }

        .navbar-nav .nav-link.active {
            color: var(--accent);
            background: var(--accent-soft);
            font-weight: 700;
        }

        .navbar-toggler {
            border: none;
            background: transparent;
            padding: 6px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent);
            border-radius: 8px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(15,30,61,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            width: 22px;
            height: 22px;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            background: linear-gradient(rgba(10, 20, 40, 0.78), rgba(10, 20, 40, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 86px 0 76px;
            color: #fff;
            position: relative;
        }

        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(232, 163, 61, 0.18);
            border: 1px solid rgba(232, 163, 61, 0.45);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.6px;
            padding: 5px 16px;
            border-radius: 100px;
            margin-bottom: 18px;
        }

        .page-banner h1 {
            font-size: 42px;
            font-weight: 900;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 14px;
        }

        .page-banner p {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin-bottom: 24px;
        }

        .page-banner .breadcrumb {
            margin-bottom: 0;
            background: transparent;
            padding: 0;
        }

        .page-banner .breadcrumb-item,
        .page-banner .breadcrumb-item a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }

        .page-banner .breadcrumb-item.active {
            color: var(--accent);
        }

        .page-banner .breadcrumb-item + .breadcrumb-item::before {
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Category Cards ===== */
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            height: 100%;
            transition: var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 163, 61, 0.3);
        }

        .category-card .card-img-wrap {
            position: relative;
            height: 190px;
            overflow: hidden;
        }

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

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

        .category-card .card-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 30, 61, 0) 50%, rgba(15, 30, 61, 0.3));
        }

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

        .category-card .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 4px 12px;
            border-radius: 100px;
            margin-bottom: 10px;
        }

        .category-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

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

        .category-card .card-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .category-card .card-more i {
            transition: transform 0.3s;
            font-size: 12px;
        }

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

        /* ===== Steps ===== */
        .steps-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .step-item {
            position: relative;
            padding: 28px 22px;
            background: var(--bg-body);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            height: 100%;
            transition: var(--transition-base);
        }

        .step-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(232, 163, 61, 0.35);
        }

        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            border-radius: 50%;
            margin-bottom: 14px;
        }

        .step-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== Feature Highlight ===== */
        .feature-block {
            background: var(--bg-dark);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 54px;
            position: relative;
            overflow: hidden;
            margin-bottom: 0;
        }

        .feature-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(232, 163, 61, 0.1);
        }

        .feature-block h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.4px;
        }

        .feature-block p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            line-height: 1.8;
            max-width: 580px;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
        }

        .feature-list li i {
            color: var(--accent);
            margin-top: 5px;
            font-size: 14px;
        }

        /* ===== Content List ===== */
        .content-item {
            display: flex;
            gap: 18px;
            padding: 18px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin-bottom: 14px;
            transition: var(--transition-base);
            align-items: center;
        }

        .content-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(232, 163, 61, 0.25);
            transform: translateX(4px);
        }

        .content-item .item-icon {
            flex-shrink: 0;
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: var(--accent-soft);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .content-item .item-info {
            flex: 1;
        }

        .content-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 2px;
            line-height: 1.4;
        }

        .content-item p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .content-item .item-arrow {
            color: var(--text-muted);
            font-size: 14px;
            flex-shrink: 0;
        }

        /* ===== Tips / Callout ===== */
        .tips-card {
            background: linear-gradient(135deg, rgba(232, 163, 61, 0.08), rgba(232, 163, 61, 0.04));
            border: 1px dashed rgba(232, 163, 61, 0.4);
            border-radius: var(--radius-md);
            padding: 24px 26px;
            margin-bottom: 18px;
        }

        .tips-card .tips-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
        }

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

        .tips-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.8;
        }

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

        .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            background: var(--bg-white);
            padding: 16px 20px;
        }

        .accordion-button:not(.collapsed) {
            background: var(--accent-soft);
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent);
        }

        .accordion-button::after {
            background-size: 14px;
            filter: hue-rotate(20deg);
        }

        .accordion-body {
            padding: 4px 20px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            background: var(--bg-white);
            border-top: 1px solid var(--border-color);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
        }

        .cta-box {
            background: linear-gradient(135deg, rgba(15, 30, 61, 0.92), rgba(10, 20, 40, 0.97)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-radius: var(--radius-lg);
            padding: 54px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-box h2 {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: -0.4px;
            margin-bottom: 12px;
        }

        .cta-box p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            max-width: 520px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }

        .cta-box .btn-accent {
            padding: 12px 34px;
            font-size: 16px;
        }

        /* ===== Site Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
        }

        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.3px;
            margin-bottom: 10px;
        }

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

        .site-footer .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 320px;
        }

        .site-footer .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }

        .site-footer .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-links li {
            padding: 5px 0;
            font-size: 14px;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition-base);
        }

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

        .site-footer .footer-links i {
            color: var(--accent);
            width: 16px;
            text-align: center;
            margin-right: 6px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section-title {
                font-size: 30px;
            }

            .page-banner h1 {
                font-size: 36px;
            }

            .feature-block {
                padding: 40px;
            }

            .cta-box {
                padding: 40px 28px;
            }
        }

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

            .page-banner {
                padding: 60px 0 50px;
            }

            .page-banner h1 {
                font-size: 30px;
            }

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

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

            .cta-box {
                padding: 36px 22px;
            }

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

            .content-item {
                flex-wrap: wrap;
            }

            .step-item {
                margin-bottom: 16px;
            }

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

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

            .page-banner h1 {
                font-size: 26px;
            }

            .page-banner p {
                font-size: 15px;
            }

            .section-eyebrow {
                font-size: 12px;
            }

            .category-card .card-img-wrap {
                height: 160px;
            }

            .category-card .card-body {
                padding: 18px;
            }

            .feature-list li {
                font-size: 14px;
            }

            .content-item {
                padding: 14px;
                gap: 12px;
            }

            .content-item .item-icon {
                width: 40px;
                height: 40px;
                font-size: 15px;
            }

            .accorion-button {
                font-size: 14px;
            }
        }

        @media (min-width: 992px) {
            .navbar-nav {
                gap: 4px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0d1f3c;
            --primary-light: #142c52;
            --accent: #c9a44c;
            --accent-dark: #a88736;
            --bg-light: #f6f8fb;
            --bg-white: #ffffff;
            --bg-dark: #0a1428;
            --text-main: #233040;
            --text-weak: #6b7a8d;
            --border: #e4e9f0;
            --shadow-sm: 0 2px 8px rgba(13, 31, 60, 0.06);
            --shadow-md: 0 6px 24px rgba(13, 31, 60, 0.08);
            --shadow-lg: 0 12px 40px rgba(13, 31, 60, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --spacing-section: 80px;
            --transition: all 0.3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-light);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1050;
        }
        .site-header .navbar {
            padding: 14px 0;
        }
        .brand-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
            display: flex;
            align-items: baseline;
        }
        .brand-text span {
            color: var(--accent);
            font-weight: 600;
            margin-left: 4px;
        }
        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 18px !important;
            border-radius: 40px;
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(201, 164, 76, 0.1);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
        }
        .btn-accent {
            background: var(--accent);
            color: #0a1428;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            padding: 8px 20px;
            transition: var(--transition);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(201, 164, 76, 0.35);
        }
        .navbar-toggler {
            border: none;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%230d1f3c' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(rgba(10, 20, 40, 0.78), rgba(10, 20, 40, 0.82)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 100px 0 90px;
            color: #ffffff;
            overflow: hidden;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(201, 164, 76, 0.15);
            filter: blur(60px);
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 164, 76, 0.15);
            border: 1px solid rgba(201, 164, 76, 0.4);
            color: #d4b46a;
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 20px;
            backdrop-filter: blur(6px);
        }
        .page-hero h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }
        .page-hero p.lead {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            margin-bottom: 30px;
            line-height: 1.8;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 30px;
            flex-wrap: wrap;
        }
        .hero-stats .stat-item {
            text-align: left;
        }
        .hero-stats .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }
        .hero-stats .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 6px;
        }

        /* ===== Section ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-title-wrap {
            margin-bottom: 40px;
        }
        .section-title-wrap .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .section-title-wrap h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-title-wrap p {
            color: var(--text-weak);
            font-size: 16px;
            max-width: 680px;
        }

        /* ===== Cards ===== */
        .topic-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(201, 164, 76, 0.4);
        }
        .topic-card .card-img-wrapper {
            position: relative;
            overflow: hidden;
            height: 220px;
        }
        .topic-card .card-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .topic-card:hover .card-img-wrapper img {
            transform: scale(1.05);
        }
        .topic-card .card-img-wrapper::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(transparent, rgba(13, 31, 60, 0.4));
        }
        .topic-card .card-body {
            padding: 24px;
        }
        .topic-card .card-tag {
            display: inline-block;
            background: rgba(201, 164, 76, 0.12);
            color: #8a6d2f;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .topic-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .topic-card p {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .topic-card .card-link {
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topic-card .card-link:hover {
            gap: 10px;
            color: var(--primary);
        }

        /* ===== Timeline News ===== */
        .news-timeline {
            position: relative;
            padding-left: 30px;
        }
        .news-timeline::before {
            content: "";
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--accent), var(--border));
        }
        .news-item {
            position: relative;
            margin-bottom: 30px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            transition: var(--transition);
        }
        .news-item::before {
            content: "";
            position: absolute;
            left: -29px;
            top: 30px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent);
            border: 2px solid #ffffff;
            box-shadow: 0 0 0 3px rgba(201, 164, 76, 0.2);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(201, 164, 76, 0.3);
        }
        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .news-item .news-meta .badge-custom {
            background: var(--primary);
            color: #ffffff;
            padding: 3px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }
        .news-item .news-meta .badge-hot {
            background: #e74c3c;
        }
        .news-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .news-item p {
            color: var(--text-weak);
            font-size: 14px;
            margin-bottom: 12px;
            line-height: 1.7;
        }
        .news-item .news-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-weak);
        }
        .news-item .news-footer a {
            color: var(--accent-dark);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: "";
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(201, 164, 76, 0.12);
        }
        .stats-section .section-title-wrap h2 {
            color: #ffffff;
        }
        .stats-section .section-title-wrap p {
            color: rgba(255, 255, 255, 0.7);
        }
        .stat-block {
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }
        .stat-block:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .stat-block .stat-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-block .stat-label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
        }

        /* ===== Feature ===== */
        .feature-row {
            align-items: center;
            margin-bottom: 60px;
        }
        .feature-row:last-child {
            margin-bottom: 0;
        }
        .feature-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .feature-img img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .feature-img:hover img {
            transform: scale(1.03);
        }
        .feature-img::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(transparent, rgba(13, 31, 60, 0.3));
        }
        .feature-content {
            padding: 20px 0;
        }
        .feature-content .feature-badge {
            display: inline-block;
            background: rgba(201, 164, 76, 0.15);
            color: #8a6d2f;
            padding: 5px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .feature-content h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .feature-content p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .feature-list li {
            padding: 8px 0;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-main);
            font-size: 15px;
        }
        .feature-list li i {
            color: var(--accent);
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(201, 164, 76, 0.4);
        }
        .faq-item summary {
            padding: 22px 26px;
            font-weight: 600;
            font-size: 16px;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: "+";
            font-size: 24px;
            color: var(--accent);
            font-weight: 400;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }
        .faq-item .faq-body {
            padding: 0 26px 22px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a2f52, #0d1f3c);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(201, 164, 76, 0.08);
            filter: blur(40px);
        }
        .cta-section h2 {
            color: #ffffff;
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            margin-bottom: 30px;
        }
        .cta-section .btn-accent {
            padding: 12px 36px;
            font-size: 16px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 60px 0 0;
            font-size: 14px;
        }
        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 14px;
        }
        .site-footer .footer-brand span {
            color: var(--accent);
        }
        .site-footer .footer-desc {
            line-height: 1.8;
            margin-bottom: 0;
        }
        .site-footer .footer-title {
            color: #ffffff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 60px;
            }
            .page-hero h1 {
                font-size: 38px;
            }
            .section-title-wrap h2 {
                font-size: 30px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 50px;
            }
            .site-header .navbar-collapse {
                background: #ffffff;
                padding: 15px;
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-md);
                margin-top: 10px;
            }
            .navbar-nav .nav-link {
                padding-left: 16px !important;
            }
            .page-hero {
                padding: 70px 0 60px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero .hero-stats {
                gap: 30px;
            }
            .section-title-wrap h2 {
                font-size: 26px;
            }
            .feature-img img {
                height: 240px;
            }
            .stat-block .stat-num {
                font-size: 34px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .news-timeline {
                padding-left: 24px;
            }
            .news-item::before {
                left: -25px;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p.lead {
                font-size: 15px;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stats .stat-num {
                font-size: 24px;
            }
            .section-title-wrap h2 {
                font-size: 24px;
            }
            .topic-card .card-img-wrapper {
                height: 180px;
            }
            .faq-item summary {
                font-size: 15px;
                padding: 18px 20px;
            }
            .faq-item .faq-body {
                padding: 0 20px 18px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0b1e3a;
            --primary-light: #132b52;
            --accent: #e8b64c;
            --accent-dark: #d4a43a;
            --bg: #f4f6fa;
            --white: #ffffff;
            --text: #1a2332;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 10px 40px rgba(11, 30, 58, 0.08);
            --shadow-sm: 0 4px 16px rgba(11, 30, 58, 0.06);
            --transition: all 0.3s ease;
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; }
        body {
            font-family: var(--font-main);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; }
        .container { max-width: 1200px; }

        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1020;
            box-shadow: 0 2px 16px rgba(11, 30, 58, 0.06);
        }
        .navbar { padding: 12px 0; }
        .brand-text {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .brand-text span { color: var(--accent); }
        .navbar .navbar-toggler { border: none; padding: 6px 10px; border-radius: 10px; }
        .navbar .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(232, 182, 76, 0.3); }
        .navbar .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 18px !important;
            border-radius: 24px;
            margin: 0 2px;
            transition: var(--transition);
            position: relative;
        }
        .navbar .nav-link:hover { color: var(--accent-dark); background: rgba(232, 182, 76, 0.12); }
        .navbar .nav-link.active { color: var(--primary); background: rgba(232, 182, 76, 0.2); font-weight: 700; }
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: var(--white);
                border-radius: 16px;
                padding: 16px;
                box-shadow: var(--shadow);
                margin-top: 12px;
                border: 1px solid var(--border);
            }
            .navbar .nav-link { padding: 10px 16px !important; border-radius: 12px; margin: 2px 0; }
            .navbar .btn { margin-top: 12px; width: 100%; text-align: center; }
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: 24px;
            font-weight: 700;
            padding: 10px 24px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .btn-accent:hover { background: var(--accent-dark); color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232, 182, 76, 0.35); }
        .btn-accent:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            border-radius: 24px;
            padding: 10px 24px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(11, 30, 58, 0.04); }

        .article-hero {
            background-size: cover;
            background-position: center;
            padding: 64px 0 52px;
            position: relative;
            color: var(--white);
        }
        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 30, 58, 0.92), rgba(11, 30, 58, 0.7));
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .breadcrumb { background: transparent; padding: 0; margin-bottom: 24px; }
        .article-hero .breadcrumb-item { font-size: 14px; }
        .article-hero .breadcrumb-item + .breadcrumb-item::before { color: rgba(255, 255, 255, 0.5); content: "›"; }
        .article-hero .breadcrumb-item a { color: rgba(255, 255, 255, 0.75); }
        .article-hero .breadcrumb-item a:hover { color: var(--accent); }
        .article-hero .breadcrumb-item.active { color: var(--accent); }
        .article-hero h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            max-width: 860px;
            letter-spacing: -0.02em;
            word-wrap: break-word;
            overflow-wrap: break-word;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }
        .article-meta span { display: inline-flex; align-items: center; gap: 6px; }
        .article-meta i { color: var(--accent); }

        .article-main { padding: 48px 0 32px; }
        .article-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 40px;
            border: 1px solid rgba(226, 232, 240, 0.6);
            height: 100%;
        }
        .not-found { text-align: center; padding: 60px 20px; }
        .not-found-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(11, 30, 58, 0.05);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 20px;
        }
        .not-found h2 { font-size: 28px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
        .not-found p { color: var(--text-muted); margin-bottom: 24px; }

        .article-content { font-size: 17px; line-height: 1.9; color: var(--text); }
        .article-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin: 2em 0 0.8em;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(232, 182, 76, 0.3);
        }
        .article-content h3 { font-size: 23px; font-weight: 700; color: var(--primary); margin: 1.8em 0 0.6em; }
        .article-content h4 { font-size: 19px; font-weight: 600; color: var(--primary); margin: 1.5em 0 0.5em; }
        .article-content p { margin-bottom: 1.5em; }
        .article-content a { color: var(--accent-dark); border-bottom: 1px solid rgba(212, 164, 58, 0.3); }
        .article-content a:hover { color: var(--primary); border-bottom-color: var(--primary); }
        .article-content ul, .article-content ol { margin-bottom: 1.5em; padding-left: 1.5em; }
        .article-content li { margin-bottom: 0.5em; }
        .article-content img { max-width: 100%; border-radius: 12px; margin: 1.5em 0; box-shadow: var(--shadow-sm); }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 14px 24px;
            background: rgba(232, 182, 76, 0.08);
            border-radius: 0 12px 12px 0;
            color: var(--text-muted);
            margin: 1.5em 0;
            font-style: italic;
        }
        .article-content pre {
            background: var(--primary);
            color: #e2e8f0;
            padding: 20px 24px;
            border-radius: 12px;
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 1.5em;
        }
        .article-content code { background: rgba(11, 30, 58, 0.06); padding: 2px 8px; border-radius: 6px; font-size: 0.9em; }
        .article-content pre code { background: transparent; padding: 0; color: inherit; }
        .article-content table { width: 100%; border-collapse: collapse; margin: 1.5em 0; font-size: 15px; }
        .article-content th, .article-content td { border: 1px solid var(--border); padding: 10px 14px; }
        .article-content th { background: rgba(11, 30, 58, 0.05); font-weight: 600; }

        .article-tags { margin-top: 32px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
        .article-tags .tag-label { font-size: 14px; font-weight: 600; color: var(--text-muted); }
        .tag-badge { background: rgba(232, 182, 76, 0.12); color: var(--text); padding: 6px 14px; border-radius: 20px; font-weight: 500; font-size: 13px; }

        .article-nav { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--border); }

        .sidebar-card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            margin-bottom: 24px;
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition);
        }
        .sidebar-card:hover { box-shadow: var(--shadow); }
        .sidebar-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-title i { color: var(--accent); }
        .category-list { list-style: none; padding: 0; margin: 0; }
        .category-list li { margin-bottom: 10px; }
        .category-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            border-radius: 12px;
            background: var(--bg);
            border: 1px solid transparent;
            transition: var(--transition);
            font-weight: 500;
            color: var(--text);
        }
        .category-list a:hover { background: rgba(232, 182, 76, 0.1); border-color: rgba(232, 182, 76, 0.3); color: var(--primary); transform: translateX(4px); }
        .category-list a i { color: var(--accent); font-size: 14px; }

        .latest-list { list-style: none; padding: 0; margin: 0; }
        .latest-list li { border-bottom: 1px dashed var(--border); padding: 12px 0; }
        .latest-list li:last-child { border-bottom: none; }
        .latest-list a { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
        .latest-list .latest-title { font-size: 14px; font-weight: 500; color: var(--text); flex: 1; line-height: 1.4; transition: color 0.3s ease; }
        .latest-list a:hover .latest-title { color: var(--accent-dark); }
        .latest-list .latest-date { font-size: 12px; color: var(--text-muted); white-space: nowrap; background: var(--bg); padding: 2px 8px; border-radius: 10px; }
        .latest-empty { font-size: 14px; color: var(--text-muted); text-align: center; padding: 16px 0; }

        .sidebar-cta { background: var(--primary); border-radius: var(--radius); padding: 28px 24px; text-align: center; color: var(--white); }
        .sidebar-cta h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
        .sidebar-cta p { font-size: 14px; color: rgba(255, 255, 255, 0.7); margin-bottom: 20px; }
        .sidebar-cta .btn { width: 100%; }

        .recommend-section { padding: 56px 0; }
        .section-head { text-align: center; max-width: 640px; margin: 0 auto 40px; }
        .section-head h2 { font-size: 32px; font-weight: 800; color: var(--primary); margin-bottom: 12px; }
        .section-head p { color: var(--text-muted); font-size: 16px; }
        .section-head .section-line { display: block; width: 56px; height: 4px; background: var(--accent); border-radius: 2px; margin: 14px auto 0; }

        .recommend-card {
            display: block;
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid rgba(226, 232, 240, 0.6);
            height: 100%;
        }
        .recommend-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
        .recommend-thumbnail { position: relative; overflow: hidden; height: 200px; }
        .recommend-thumbnail img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .recommend-card:hover .recommend-thumbnail img { transform: scale(1.05); }
        .recommend-thumbnail::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(11, 30, 58, 0.2)); }
        .recommend-body { padding: 24px; }
        .category-badge { background: rgba(232, 182, 76, 0.15); color: var(--primary); font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: 20px; display: inline-block; margin-bottom: 12px; }
        .recommend-body h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 8px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .recommend-body p { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .read-more { font-size: 14px; font-weight: 600; color: var(--accent-dark); display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
        .recommend-card:hover .read-more { gap: 10px; color: var(--primary); }

        .cta-section {
            background: var(--primary);
            padding: 64px 0;
            color: var(--white);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            background: rgba(232, 182, 76, 0.1);
            border-radius: 50%;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: 20%;
            width: 200px;
            height: 200px;
            background: rgba(232, 182, 76, 0.06);
            border-radius: 50%;
        }
        .cta-box { text-align: center; max-width: 640px; margin: 0 auto; position: relative; z-index: 2; }
        .cta-box h2 { font-size: 30px; font-weight: 800; margin-bottom: 14px; }
        .cta-box h2 span { color: var(--accent); }
        .cta-box p { font-size: 16px; color: rgba(255, 255, 255, 0.75); margin-bottom: 28px; }
        .cta-box .btn-group-custom { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }

        .faq-section { padding: 64px 0; }
        .faq-wrap { max-width: 860px; margin: 0 auto; }
        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(11, 30, 58, 0.04);
        }
        .accordion-button { font-weight: 600; color: var(--text); padding: 18px 24px; background: var(--white); border-radius: var(--radius-sm) !important; }
        .accordion-button:not(.collapsed) { color: var(--primary); background: rgba(232, 182, 76, 0.06); box-shadow: none; }
        .accordion-button:focus { box-shadow: 0 0 0 3px rgba(232, 182, 76, 0.2); border-radius: var(--radius-sm) !important; }
        .accordion-body { padding: 20px 24px; color: var(--text-muted); line-height: 1.8; font-size: 15px; }

        .site-footer { background: var(--primary); color: rgba(255, 255, 255, 0.8); padding: 56px 0 0; }
        .footer-brand { font-size: 22px; font-weight: 800; color: var(--white); margin-bottom: 16px; }
        .footer-brand span { color: var(--accent); }
        .footer-desc { font-size: 14px; color: rgba(255, 255, 255, 0.65); line-height: 1.8; margin-bottom: 0; }
        .footer-title { font-size: 17px; font-weight: 700; color: var(--white); margin-bottom: 16px; position: relative; padding-bottom: 10px; }
        .footer-title::after { content: ""; position: absolute; bottom: 0; left: 0; width: 32px; height: 3px; background: var(--accent); border-radius: 2px; }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: rgba(255, 255, 255, 0.65); font-size: 14px; transition: all 0.3s ease; }
        .footer-links a:hover { color: var(--accent); padding-left: 6px; }
        .footer-links i { width: 20px; text-align: center; }
        .footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); margin-top: 40px; padding: 20px 0; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; font-size: 14px; color: rgba(255, 255, 255, 0.5); }

        @media (max-width: 768px) {
            .article-hero { padding: 44px 0 36px; }
            .article-hero h1 { font-size: 28px; }
            .article-card { padding: 24px; }
            .article-content { font-size: 16px; }
            .section-head h2 { font-size: 26px; }
            .section-head p { font-size: 15px; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 24px; }
            .article-meta { gap: 12px; font-size: 13px; }
            .article-card { padding: 20px; border-radius: 16px; }
            .article-content { font-size: 15px; }
            .article-content h2 { font-size: 22px; }
            .article-content h3 { font-size: 19px; }
            .article-nav { flex-direction: column; }
            .sidebar-card { padding: 20px; }
            .cta-box h2 { font-size: 24px; }
            .cta-box p { font-size: 15px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section-head h2 { font-size: 24px; }
        }

/* roulang page: category3 */
:root {
            --primary: #1e3a8a;
            --primary-dark: #142a66;
            --primary-light: #e8edf8;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fff5e0;
            --bg: #f4f6fb;
            --bg-white: #ffffff;
            --bg-dark: #131c33;
            --text: #1f2937;
            --muted: #6b7280;
            --border: #e5e7eb;
            --radius: 18px;
            --radius-sm: 12px;
            --radius-lg: 28px;
            --shadow: 0 10px 30px rgba(30, 58, 138, 0.08);
            --shadow-lg: 0 22px 55px rgba(30, 58, 138, 0.16);
            --shadow-accent: 0 10px 25px rgba(245, 158, 11, 0.3);
            --transition: all 0.32s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.35;
            color: var(--primary-dark);
            margin: 0 0 0.5rem;
        }

        p {
            margin: 0 0 1rem;
        }

        .container {
            max-width: 1200px;
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .brand-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            display: inline-flex;
            align-items: center;
        }

        .brand-text span {
            color: var(--accent);
            margin-left: 4px;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--muted);
            padding: 8px 18px;
            border-radius: 8px;
            position: relative;
        }

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

        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 700;
        }

        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 20px;
            right: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 10px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: var(--shadow-accent);
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(245, 158, 11, 0.4);
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.15);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231e3a8a' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* 页面横幅 */
        .page-banner {
            position: relative;
            padding: 90px 0 70px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(19, 28, 51, 0.9) 0%, rgba(30, 58, 138, 0.7) 55%, rgba(245, 158, 11, 0.3) 100%);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            backdrop-filter: blur(8px);
            margin-bottom: 18px;
        }

        .banner-content h1 {
            color: #fff;
            font-size: clamp(28px, 4.5vw, 46px);
            font-weight: 800;
            margin-bottom: 14px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .banner-content p {
            color: rgba(255, 255, 255, 0.92);
            font-size: clamp(15px, 1.6vw, 18px);
            line-height: 1.8;
            max-width: 640px;
            margin: 0 auto 24px;
        }

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }

        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }

        .banner-breadcrumb a:hover {
            color: var(--accent);
        }

        .banner-breadcrumb i {
            font-size: 10px;
            margin-top: 2px;
        }

        /* 通用区块 */
        .section {
            padding: 80px 0;
        }

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

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 50px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 50px;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: clamp(26px, 3vw, 36px);
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--primary-dark);
        }

        .section-head p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* 防线概览卡 */
        .overview-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px 28px;
            height: 100%;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .overview-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .overview-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
        }

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

        .overview-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 18px;
            box-shadow: 0 8px 20px rgba(30, 58, 138, 0.25);
        }

        .overview-card:nth-child(2) .overview-icon {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
        }

        .overview-card:nth-child(3) .overview-icon {
            background: linear-gradient(135deg, #059669, #047857);
            box-shadow: 0 8px 20px rgba(5, 150, 105, 0.3);
        }

        .overview-card h3 {
            font-size: 19px;
            margin-bottom: 8px;
        }

        .overview-card p {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 14px;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .card-link:hover {
            color: var(--accent-dark);
        }

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

        /* 安全要点卡片 */
        .tips-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
        }

        .tips-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .tips-card-media {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

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

        .tips-card:hover .tips-card-media img {
            transform: scale(1.08);
        }

        .tips-card-media .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(20, 42, 102, 0.85);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            backdrop-filter: blur(6px);
        }

        .tips-card-body {
            padding: 22px 20px 24px;
        }

        .tips-card-body h3 {
            font-size: 17px;
            margin-bottom: 8px;
        }

        .tips-card-body p {
            font-size: 13.5px;
            color: var(--muted);
            margin-bottom: 12px;
            line-height: 1.7;
        }

        .tips-card-body .card-tips {
            font-size: 12.5px;
            color: var(--accent-dark);
            background: var(--accent-light);
            padding: 6px 14px;
            border-radius: 8px;
            display: inline-block;
            font-weight: 600;
        }

        /* 防护流程 */
        .process-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #1a2f5e 60%, #243b6e 100%);
            position: relative;
            overflow: hidden;
        }

        .process-section::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -120px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.1);
        }

        .process-section .section-tag {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .process-section .section-head h2 {
            color: #fff;
        }

        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        .step-item {
            text-align: center;
            padding: 30px 20px;
            position: relative;
        }

        .step-number {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            margin: 0 auto 18px;
            background: rgba(255, 255, 255, 0.1);
            border: 2px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            font-size: 24px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            z-index: 2;
        }

        .step-item:nth-child(2) .step-number {
            background: rgba(245, 158, 11, 0.3);
            border-color: var(--accent);
        }

        .step-item:nth-child(3) .step-number {
            background: rgba(5, 150, 105, 0.3);
            border-color: #10b981;
        }

        .step-item:nth-child(4) .step-number {
            background: rgba(239, 68, 68, 0.3);
            border-color: #ef4444;
        }

        .step-item h3 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 8px;
        }

        .step-item p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13.5px;
            line-height: 1.7;
        }

        .step-connector {
            position: absolute;
            top: 65px;
            left: calc(50% + 50px);
            width: calc(100% - 100px);
            height: 2px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
            z-index: 1;
        }

        /* 安全数据 */
        .stats-section {
            padding: 70px 0;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
        }

        .stats-item {
            text-align: center;
            padding: 24px 16px;
        }

        .stats-number {
            font-size: clamp(34px, 4vw, 48px);
            font-weight: 800;
            color: var(--primary);
            font-family: "Helvetica Neue", Arial, sans-serif;
        }

        .stats-number span {
            color: var(--accent);
            font-size: 24px;
            margin-left: 2px;
        }

        .stats-label {
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
            margin-top: 6px;
        }

        /* FAQ */
        .faq-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 28px 30px;
            margin-bottom: 14px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

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

        .faq-card .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            gap: 16px;
        }

        .faq-card .faq-q h4 {
            font-size: 16px;
            margin: 0;
            color: var(--primary-dark);
            flex: 1;
        }

        .faq-card .faq-q i {
            color: var(--accent);
            font-size: 15px;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-card.open .faq-q i {
            transform: rotate(45deg);
        }

        .faq-card .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-card.open .faq-a {
            max-height: 300px;
        }

        .faq-card .faq-a-content {
            padding-top: 14px;
            border-top: 1px solid var(--border);
            margin-top: 14px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            padding: 100px 0;
            position: relative;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(19, 28, 51, 0.88), rgba(30, 58, 138, 0.75));
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            color: #fff;
            font-size: clamp(26px, 3vw, 36px);
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-buttons .btn {
            padding: 12px 32px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 15px;
        }

        .btn-light-custom {
            background: #fff;
            color: var(--primary);
            border: none;
        }

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

        /* 页脚 */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 0;
            font-size: 14px;
        }

        .site-footer .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

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

        .site-footer .footer-desc {
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 320px;
        }

        .site-footer .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }

        .site-footer .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

        .site-footer .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            margin-top: 50px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .section {
                padding: 60px 0;
            }
            .page-banner {
                padding: 80px 0 60px;
            }
            .step-connector {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .page-banner {
                padding: 70px 0 50px;
            }
            .navbar-collapse {
                background: #fff;
                border-radius: 14px;
                padding: 16px;
                margin-top: 10px;
                box-shadow: var(--shadow);
            }
            .navbar-nav .nav-link {
                padding: 12px 16px;
                border-radius: 10px;
            }
            .navbar-nav .nav-link.active::after {
                bottom: auto;
                left: 0;
                right: auto;
                top: 50%;
                transform: translateY(-50%);
                height: 20px;
                width: 4px;
            }
            .brand-text {
                font-size: 19px;
            }
            .banner-content h1 {
                font-size: 26px;
            }
            .banner-content p {
                font-size: 14px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .cta-buttons .btn {
                width: 100%;
            }
            .overview-card {
                padding: 24px 20px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 40px 0;
            }
            .page-banner {
                padding: 60px 0 44px;
            }
            .section-head {
                margin-bottom: 34px;
            }
            .section-head h2 {
                font-size: 23px;
            }
            .tips-card-media {
                height: 160px;
            }
            .stats-number {
                font-size: 30px;
            }
        }