/* roulang page: index */
:root {
            --brand-600: #1044d9;
            --brand-500: #1a5cff;
            --text-main: #1a2436;
            --text-weak: #5b6578;
            --bg-soft: #f4f7fc;
            --border-light: #e6ebf3;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --card-shadow: 0 6px 24px rgba(13, 40, 100, 0.07);
            --card-shadow-hover: 0 14px 40px rgba(13, 40, 100, 0.15);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            color: var(--text-main);
            background: #ffffff;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, select {
            font-family: inherit;
        }
        .container-x {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .header-top {
            background: linear-gradient(90deg, #0c1322 0%, #1e2a44 100%);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            padding: 8px 0;
            letter-spacing: 0.2px;
        }
        .header-top a {
            color: #ffffff;
            transition: opacity .2s;
        }
        .header-top a:hover {
            opacity: 0.75;
        }
        .main-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 50;
            transition: box-shadow .3s;
        }
        .main-header.scrolled {
            box-shadow: 0 8px 30px rgba(13, 40, 100, 0.08);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 70px;
            gap: 24px;
        }
        .logo-main {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            font-size: 22px;
            color: var(--deep-900);
            letter-spacing: -0.2px;
            flex-shrink: 0;
        }
        .logo-main .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 6px 14px rgba(26, 92, 255, 0.35);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-menu a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 8px 15px;
            border-radius: 999px;
            font-size: 14.5px;
            font-weight: 500;
            color: #33405a;
            transition: all .25s;
        }
        .nav-menu a i {
            font-size: 13px;
            opacity: 0.7;
        }
        .nav-menu a:hover {
            background: #eef4ff;
            color: var(--brand-600);
        }
        .nav-menu .active {
            background: var(--brand-600);
            color: #fff;
            box-shadow: 0 6px 16px rgba(16, 68, 217, 0.3);
        }
        .nav-menu .active:hover {
            background: var(--brand-600);
            color: #fff;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
            color: #fff;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: 999px;
            font-size: 14px;
            transition: transform .25s, box-shadow .25s;
            box-shadow: 0 8px 20px rgba(26, 92, 255, 0.25);
        }
        .btn-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(26, 92, 255, 0.35);
        }
        .btn-nav:focus-visible,
        .nav-menu a:focus-visible {
            outline: 3px solid rgba(26, 92, 255, 0.5);
            outline-offset: 2px;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-light);
            border-radius: 10px;
            width: 42px;
            height: 42px;
            font-size: 18px;
            color: var(--deep-800);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: background .2s;
        }
        .mobile-toggle:hover {
            background: #f0f4fb;
        }
        .mobile-menu {
            display: none;
            background: #ffffff;
            border-top: 1px solid var(--border-light);
            padding: 14px 24px 20px;
        }
        .mobile-menu a {
            display: block;
            padding: 11px 14px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: #2c384d;
            margin-bottom: 6px;
            transition: background .2s;
        }
        .mobile-menu a i {
            margin-right: 8px;
            opacity: 0.7;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: #eef4ff;
            color: var(--brand-600);
        }
        /* Hero */
        .hero-section {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 110px 0 100px;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(12, 19, 34, 0.92) 0%, rgba(12, 19, 34, 0.72) 60%, rgba(26, 92, 255, 0.35) 100%);
            z-index: 1;
        }
        .hero-section > .container-x {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(8px);
            padding: 6px 16px;
            border-radius: 999px;
            color: #e0ecff;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 22px;
        }
        .hero-title {
            font-size: clamp(34px, 5vw, 56px);
            font-weight: 800;
            color: #ffffff;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }
        .hero-title span {
            background: linear-gradient(120deg, #8ab4ff, #4d8aff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin-bottom: 34px;
            line-height: 1.8;
            font-weight: 300;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            background: linear-gradient(135deg, #4d8aff, #1a5cff);
            color: #ffffff;
            font-weight: 600;
            font-size: 15px;
            padding: 14px 30px;
            border-radius: 999px;
            box-shadow: 0 10px 24px rgba(26, 92, 255, 0.4);
            transition: transform .25s, box-shadow .25s;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 34px rgba(26, 92, 255, 0.5);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.5);
            outline-offset: 3px;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #ffffff;
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: 999px;
            backdrop-filter: blur(6px);
            transition: background .25s, transform .25s;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.18);
            transform: translateY(-2px);
        }
        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-top: 54px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }
        .metric-box {
            color: #ffffff;
        }
        .metric-box .metric-value {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #ffffff;
        }
        .metric-box .metric-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }
        /* Section */
        .section-block {
            padding: 84px 0;
        }
        .section-block.bg-soft {
            background: var(--bg-soft);
        }
        .section-head {
            max-width: 700px;
            margin-bottom: 48px;
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--brand-600);
            text-transform: uppercase;
            background: #e8efff;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--deep-900);
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.8;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--card-shadow);
            transition: transform .3s, box-shadow .3s;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--card-shadow-hover);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, #e8efff, #dbe8ff);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--brand-600);
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--deep-800);
        }
        .feature-card p {
            font-size: 14.5px;
            color: var(--text-weak);
            line-height: 1.7;
        }
        /* Category cards */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .category-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #ffffff;
            border: 1px solid var(--border-light);
            box-shadow: var(--card-shadow);
            transition: transform .3s, box-shadow .3s;
            display: block;
            position: relative;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--card-shadow-hover);
        }
        .category-cover {
            height: 190px;
            position: relative;
            overflow: hidden;
        }
        .category-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s;
        }
        .category-card:hover .category-cover img {
            transform: scale(1.05);
        }
        .category-cover .shade {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(10, 20, 40, 0.5));
        }
        .category-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(6px);
            color: var(--brand-600);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.3px;
        }
        .category-body {
            padding: 20px 22px 24px;
        }
        .category-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--deep-800);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .category-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
        }
        .category-arrow {
            margin-top: 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-600);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        /* News list */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }
        .news-list-item {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            display: flex;
            gap: 18px;
            box-shadow: var(--card-shadow);
            transition: transform .3s, box-shadow .3s;
        }
        .news-list-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }
        .news-icon {
            width: 46px;
            height: 46px;
            background: #eef4ff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-600);
            font-size: 18px;
            flex-shrink: 0;
        }
        .news-content {
            flex: 1;
        }
        .news-content h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--deep-800);
            line-height: 1.4;
        }
        .news-content h3 a:hover {
            color: var(--brand-600);
        }
        .news-content p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .news-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
            font-size: 12.5px;
            color: #8a94a6;
        }
        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .btn-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14.5px;
            font-weight: 600;
            color: var(--brand-600);
            margin-top: 30px;
            transition: gap .2s;
        }
        .btn-more:hover {
            gap: 12px;
        }
        /* Flow */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: flow-step;
        }
        .flow-item {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 30px 22px;
            border: 1px solid var(--border-light);
            box-shadow: var(--card-shadow);
            text-align: center;
            position: relative;
        }
        .flow-step {
            width: 48px;
            height: 48px;
            margin: 0 auto 18px;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            color: #ffffff;
            font-size: 20px;
            font-weight: 700;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 18px rgba(26, 92, 255, 0.3);
        }
        .flow-item h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--deep-800);
        }
        .flow-item p {
            font-size: 13.5px;
            color: var(--text-weak);
            line-height: 1.6;
        }
        /* FAQ */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .faq-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 26px;
            box-shadow: var(--card-shadow);
            transition: border-color .25s, box-shadow .25s;
        }
        .faq-card:hover {
            border-color: #b8cbff;
            box-shadow: var(--card-shadow-hover);
        }
        .faq-card h3 {
            font-size: 15.5px;
            font-weight: 700;
            color: var(--deep-800);
            margin-bottom: 10px;
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }
        .faq-card h3 i {
            color: var(--brand-600);
            font-size: 15px;
            margin-top: 3px;
        }
        .faq-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            padding-left: 25px;
        }
        /* CTA */
        .cta-section {
            padding: 90px 0;
            position: relative;
            background: linear-gradient(120deg, #0c1322 0%, #1a2a4a 60%, #0d2a6e 100%);
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(77, 138, 255, 0.3) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            margin-bottom: 34px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        /* Footer */
        .footer-site {
            background: #0c1322;
            padding: 70px 0 30px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 44px;
        }
        .footer-brand .logo-main {
            color: #ffffff;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color .2s, padding-left .2s;
        }
        .footer-col ul a:hover {
            color: #ffffff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 14px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: #ffffff;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .features-grid,
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-menu {
                display: none;
            }
            .nav-cta .btn-nav {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .mobile-menu.open {
                display: block;
            }
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 60px 0;
            }
            .hero-section {
                padding: 80px 0;
            }
            .hero-metrics {
                gap: 20px;
            }
            .features-grid,
            .category-grid,
            .news-list,
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .flow-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .header-top .top-right {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .container-x {
                padding-left: 16px;
                padding-right: 16px;
            }
            .flow-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-ghost {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #4f46e5;
            --primary-dark: #3730a3;
            --accent: #14b8a6;
            --bg-light: #f8fafc;
            --text-dark: #0f172a;
            --text-body: #334155;
            --text-muted: #64748b;
            --border-light: #e2e8f0;
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --shadow-card: 0 4px 24px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 32px rgba(79, 70, 229, 0.12);
        }

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

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            background-color: #fff;
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        img { max-width: 100%; height: auto; display: block; }
        ul { list-style: none; }
        button { cursor: pointer; }

        .container-x {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* 顶部信息条 */
        .topbar {
            background: linear-gradient(90deg, #0f172a 0%, #1e293b 100%);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .topbar .container-x {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .topbar a {
            color: rgba(255, 255, 255, 0.85);
        }
        .topbar a:hover {
            color: #a5b4fc;
        }
        .topbar-left i, .topbar-right i {
            margin-right: 4px;
            color: #818cf8;
        }

        /* 主导航 */
        .header-main {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo-main {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.02em;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #4f46e5, #14b8a6);
            color: #fff;
            border-radius: 10px;
            font-size: 1rem;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-menu li a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            transition: all 0.2s ease;
        }
        .nav-menu li a:hover {
            background: #f1f5f9;
            color: var(--primary);
        }
        .nav-menu li a.active {
            background: #eef2ff;
            color: var(--primary);
            font-weight: 600;
        }
        .nav-cta {
            margin-left: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 22px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            border: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, #4f46e5, #3730a3);
            color: #fff;
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(79, 70, 229, 0.4);
            color: #fff;
        }
        .btn-outline {
            border: 1.5px solid #c7d2fe;
            color: var(--primary);
            background: transparent;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            background: #eef2ff;
            color: var(--primary);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
        }
        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
            color: var(--primary-dark);
        }

        /* 移动端菜单按钮 */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text-dark);
            padding: 8px;
        }

        /* Hero 内页横幅 */
        .page-hero {
            position: relative;
            padding: 96px 0 88px;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #312e81 100%);
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.3), transparent 70%);
            border-radius: 50%;
        }
        .page-hero .container-x {
            position: relative;
            z-index: 2;
        }
        .page-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 5px 14px;
            border-radius: 50px;
            color: #a5b4fc;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 18px;
            backdrop-filter: blur(8px);
        }
        .page-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }
        .page-hero p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            max-width: 640px;
        }

        /* 板块通用 */
        .section {
            padding: 88px 0;
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }
        .section-header .section-tag {
            display: inline-block;
            background: #eef2ff;
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 15px;
        }
        .section-alt {
            background: var(--bg-light);
        }

        /* 统计卡 */
        .stat-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: all 0.25s ease;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, #4f46e5, #14b8a6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .stat-label {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 6px;
        }

        /* 能力卡片 */
        .feature-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all 0.25s ease;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, #4f46e5, #14b8a6);
            transform: scaleX(0);
            transition: transform 0.3s ease;
            transform-origin: left;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: #c7d2fe;
        }
        .feature-card:hover::before {
            transform: scaleX(1);
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, #4f46e5, #14b8a6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 流程步骤 */
        .step-item {
            position: relative;
            padding-left: 60px;
            padding-bottom: 36px;
        }
        .step-item:not(:last-child)::before {
            content: '';
            position: absolute;
            left: 21px;
            top: 40px;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, #4f46e5, #14b8a6);
            opacity: 0.3;
        }
        .step-circle {
            position: absolute;
            left: 0;
            top: 0;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, #4f46e5, #14b8a6);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
        }
        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 风险卡片 */
        .risk-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            gap: 16px;
            transition: all 0.2s ease;
        }
        .risk-card:hover {
            box-shadow: var(--shadow-card);
            border-color: #c7d2fe;
        }
        .risk-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
        }
        .risk-warn { background: #fef2f2; color: #dc2626; }
        .risk-info { background: #eff6ff; color: #2563eb; }
        .risk-dark { background: #f5f3ff; color: #7c3aed; }
        .risk-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .risk-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #fff;
            transition: box-shadow 0.2s ease;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: background 0.2s ease;
        }
        .faq-question:hover {
            background: #f8fafc;
        }
        .faq-answer {
            padding: 0 24px 22px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            border-top: 1px solid var(--border-light);
            padding-top: 16px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1e293b 0%, #312e81 100%);
            border-radius: 20px;
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(20, 184, 166, 0.3), transparent 70%);
            border-radius: 50%;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 800;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* 页脚 */
        .footer-site {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo-main {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .footer-col ul li a:hover {
            color: #a5b4fc;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: #a5b4fc;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .nav-menu li a {
                padding: 8px 10px;
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                padding: 12px 16px;
                border-radius: 8px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-cta {
                display: none;
            }
            .page-hero {
                padding: 64px 0 56px;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .section {
                padding: 64px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 36px 24px;
                border-radius: 16px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .topbar-left span.d-none-sm {
                display: none;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .feature-card {
                padding: 24px 20px;
            }
        }

        .focus-ring:focus-visible {
            outline: 2px solid #4f46e5;
            outline-offset: 2px;
        }

/* roulang page: category2 */
:root {
    --brand: #2563eb;
    --brand-dark: #1e40af;
    --brand-light: #3b82f6;
    --accent: #06b6d4;
    --ink: #0f172a;
    --ink-soft: #475569;
    --ink-faint: #94a3b8;
    --bg: #f8fafc;
    --bg-night: #0f172a;
    --line: #e2e8f0;
    --radius: 1rem;
    --radius-lg: 1.5rem;
    --shadow-card: 0 1px 3px rgba(15,23,42,.08), 0 8px 24px rgba(15,23,42,.06);
    --shadow-lift: 0 14px 36px rgba(15,23,42,.12);
    --space-section: 5.5rem;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  img { display: block; max-width: 100%; }
  a { color: inherit; text-decoration: none; }
  button, input, select, textarea { font-family: inherit; font-size: 100%; }
  .container-x { width: 100%; max-width: 1200px; margin: 0 auto; padding-left: 1.25rem; padding-right: 1.25rem; }
  .section-pad { padding-top: var(--space-section); padding-bottom: var(--space-section); }

  /* ===== 顶部信息条 ===== */
  .topbar {
    background: #0b1120;
    color: #cbd5e1;
    font-size: .8rem;
    padding: .4rem 0;
    letter-spacing: .02em;
  }
  .topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
  .topbar-left, .topbar-right { display: flex; align-items: center; gap: 1.25rem; }
  .topbar a { color: #e2e8f0; transition: color .2s; }
  .topbar a:hover { color: #60a5fa; }
  .topbar i { color: #38bdf8; margin-right: .3rem; }

  /* ===== 主导航 ===== */
  .main-nav {
    background: #ffffff;
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 2px 14px rgba(15,23,42,.05);
  }
  .main-nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-height: 72px; }
  .logo-main {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -.02em;
    flex-shrink: 0;
    transition: opacity .2s;
  }
  .logo-main:hover { opacity: .85; }
  .logo-icon {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--brand), #1d4ed8);
    color: #fff;
    border-radius: 12px;
    font-size: 1.05rem;
    box-shadow: 0 6px 16px rgba(37,99,235,.35);
  }
  .nav-menu { display: flex; align-items: center; gap: .5rem; list-style: none; }
  .nav-menu li { margin: 0; }
  .nav-menu a {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .55rem 1rem;
    border-radius: 999px;
    font-size: .92rem;
    font-weight: 600;
    color: var(--ink-soft);
    transition: all .22s ease;
    white-space: nowrap;
  }
  .nav-menu a i { font-size: .85rem; color: var(--ink-faint); transition: color .2s; }
  .nav-menu a:hover { color: var(--brand); background: #eff6ff; }
  .nav-menu a:hover i { color: var(--brand); }
  .nav-menu a.active {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 6px 18px rgba(37,99,235,.32);
  }
  .nav-menu a.active i { color: #fff; }
  .header-cta {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .55rem 1.2rem;
    border-radius: 999px;
    font-size: .88rem;
    font-weight: 600;
    color: var(--brand);
    border: 1.5px solid #bfdbfe;
    transition: all .22s ease;
    white-space: nowrap;
  }
  .header-cta:hover { background: var(--brand); color: #fff; border-color: var(--brand); box-shadow: 0 8px 20px rgba(37,99,235,.3); }
  .nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    font-size: 1.05rem;
    color: var(--ink);
    cursor: pointer;
    transition: all .2s;
  }
  .nav-toggle:hover { border-color: var(--brand); color: var(--brand); }

  /* ===== 通用组件 ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    padding: .75rem 1.6rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: .95rem;
    border: none;
    cursor: pointer;
    transition: all .25s ease;
    line-height: 1.4;
  }
  .btn-primary { background: var(--brand); color: #fff; box-shadow: 0 8px 22px rgba(37,99,235,.35); }
  .btn-primary:hover { background: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(37,99,235,.42); }
  .btn-outline { background: transparent; color: var(--ink); border: 1.5px solid #cbd5e1; }
  .btn-outline:hover { border-color: var(--brand); color: var(--brand); background: #eff6ff; transform: translateY(-2px); }
  .btn-white { background: #fff; color: var(--brand-dark); box-shadow: 0 8px 22px rgba(255,255,255,.25); }
  .btn-white:hover { background: #e0f2fe; transform: translateY(-2px); box-shadow: 0 12px 28px rgba(255,255,255,.32); }

  .badge {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .2rem .75rem;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .02em;
    background: #eff6ff;
    color: var(--brand);
    border: 1px solid #dbeafe;
  }
  .badge-accent { background: #ecfeff; color: #0891b2; border-color: #cffafe; }
  .badge-night { background: rgba(255,255,255,.12); color: #e2e8f0; border-color: rgba(255,255,255,.2); backdrop-filter: blur(4px); }

  .section-head { text-align: center; max-width: 720px; margin: 0 auto 2.75rem; }
  .section-head .tagline {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--brand);
    background: #eff6ff;
    border: 1px solid #dbeafe;
    padding: .3rem 1rem;
    border-radius: 999px;
    margin-bottom: .9rem;
  }
  .section-head h2 { font-size: 2.2rem; font-weight: 800; letter-spacing: -.02em; line-height: 1.25; color: var(--ink); }
  .section-head p { color: var(--ink-soft); font-size: 1rem; margin-top: .75rem; }

  .card-hover { transition: transform .3s ease, box-shadow .3s ease; }
  .card-hover:hover { transform: translateY(-6px); box-shadow: var(--shadow-lift) !important; }

  .faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 1rem;
    overflow: hidden;
    transition: border-color .25s, box-shadow .25s;
  }
  .faq-item.open { border-color: #bfdbfe; box-shadow: var(--shadow-card); }
  .faq-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.4rem;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 1rem;
    font-weight: 700;
    color: var(--ink);
    transition: color .2s;
  }
  .faq-btn:hover { color: var(--brand); }
  .faq-btn .icon-wrap {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
    border-radius: 50%;
    color: var(--ink-soft);
    transition: all .3s;
  }
  .faq-item.open .faq-btn .icon-wrap { background: var(--brand); color: #fff; transform: rotate(45deg); }
  .faq-body { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
  .faq-inner { padding: 0 1.4rem 1.4rem; color: var(--ink-soft); font-size: .94rem; line-height: 1.8; }

  /* ===== 页头横幅 ===== */
  .page-hero {
    position: relative;
    background: #0b1120 url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
    padding: 5.5rem 0 5rem;
    color: #fff;
    isolation: isolate;
  }
  .page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(11,17,32,.94) 20%, rgba(11,17,32,.72) 60%, rgba(37,99,235,.45) 100%);
    z-index: -1;
  }
  .hero-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; font-size: .82rem; color: #cbd5e1; margin-bottom: 1.2rem; }
  .hero-breadcrumb a { transition: color .2s; }
  .hero-breadcrumb a:hover { color: #93c5fd; }
  .hero-breadcrumb i { font-size: .7rem; color: #64748b; }
  .page-hero h1 { font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 800; line-height: 1.2; letter-spacing: -.02em; }
  .page-hero h1 span { color: #60a5fa; }
  .page-hero .lead { color: #cbd5e1; font-size: 1.05rem; max-width: 580px; margin-top: 1.1rem; }
  .hero-search {
    display: flex;
    align-items: center;
    gap: .6rem;
    background: #fff;
    border-radius: 999px;
    padding: .45rem .45rem .45rem 1.2rem;
    box-shadow: 0 16px 40px rgba(0,0,0,.3);
    margin-top: 1.8rem;
    max-width: 480px;
  }
  .hero-search i { color: var(--ink-faint); }
  .hero-search input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: .92rem;
    color: var(--ink);
    min-width: 0;
  }
  .hero-search button {
    flex-shrink: 0;
    background: var(--brand);
    border: none;
    color: #fff;
    padding: .6rem 1.3rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: .88rem;
    cursor: pointer;
    transition: background .2s;
  }
  .hero-search button:hover { background: var(--brand-dark); }
  .hero-chip {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin-top: 1.5rem;
  }

  /* ===== 统计条 ===== */
  .stats-strip {
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 2rem 0;
  }
  .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
  .stats-item { text-align: center; padding: .8rem 1rem; }
  .stats-item .num { font-size: 2rem; font-weight: 800; color: var(--ink); letter-spacing: -.02em; line-height: 1.2; }
  .stats-item .num i { font-size: 1.3rem; color: var(--brand); margin-right: .3rem; vertical-align: middle; }
  .stats-item .label { font-size: .85rem; color: var(--ink-soft); margin-top: .3rem; }

  /* ===== 分类卡片 ===== */
  .cat-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 2rem 1.75rem;
    position: relative;
    overflow: hidden;
    transition: transform .3s, box-shadow .3s, border-color .3s;
    height: 100%;
  }
  .cat-card::after {
    content: "";
    position: absolute;
    top: -40px;
    right: -40px;
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37,99,235,.08), transparent 70%);
    transition: transform .4s;
  }
  .cat-card:hover { border-color: #bfdbfe; box-shadow: var(--shadow-lift); transform: translateY(-6px); }
  .cat-icon {
    width: 56px;
    height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    font-size: 1.3rem;
    background: #eff6ff;
    color: var(--brand);
    margin-bottom: 1.3rem;
    transition: all .3s;
  }
  .cat-card:hover .cat-icon { background: var(--brand); color: #fff; box-shadow: 0 8px 20px rgba(37,99,235,.35); }
  .cat-card h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: .6rem; }
  .cat-card p { color: var(--ink-soft); font-size: .9rem; line-height: 1.7; }
  .cat-card .cat-more { display: inline-flex; align-items: center; gap: .35rem; font-size: .85rem; font-weight: 700; color: var(--brand); margin-top: 1.1rem; transition: gap .2s; }
  .cat-card .cat-more i { font-size: .75rem; }
  .cat-card:hover .cat-more { gap: .6rem; }

  /* ===== 流程图步骤 ===== */
  .steps-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; position: relative; }
  .step-box {
    text-align: center;
    padding: 2.2rem 1.4rem;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    position: relative;
    transition: transform .3s, box-shadow .3s;
  }
  .step-box:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }
  .step-count {
    width: 48px;
    height: 48px;
    margin: 0 auto 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 800;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand), var(--accent));
    color: #fff;
    box-shadow: 0 8px 20px rgba(37,99,235,.3);
  }
  .step-box h3 { font-size: 1.02rem; font-weight: 800; margin-bottom: .5rem; }
  .step-box p { font-size: .87rem; color: var(--ink-soft); line-height: 1.65; }

  /* ===== 图文教程卡片 ===== */
  .tutorial-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform .3s, box-shadow .3s, border-color .3s;
    height: 100%;
  }
  .tutorial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); border-color: #bfdbfe; }
  .tutorial-media { position: relative; min-height: 240px; }
  .tutorial-media img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
  .tutorial-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(11,17,32,.35)); }
  .tutorial-body { padding: 2rem 2.2rem; display: flex; flex-direction: column; justify-content: center; }
  .tutorial-body .badge { align-self: flex-start; margin-bottom: .9rem; }
  .tutorial-body h3 { font-size: 1.35rem; font-weight: 800; line-height: 1.4; margin-bottom: .8rem; }
  .tutorial-body p { color: var(--ink-soft); font-size: .92rem; line-height: 1.75; }
  .tutorial-body .tut-link { margin-top: 1.2rem; color: var(--brand); font-weight: 700; font-size: .9rem; display: inline-flex; align-items: center; gap: .4rem; transition: gap .2s; }
  .tutorial-body .tut-link:hover { gap: .65rem; }

  /* ===== 列表 ===== */
  .guide-list {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
  }
  .guide-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.05rem 1.5rem;
    border-bottom: 1px solid #f1f5f9;
    transition: background .2s;
    list-style: none;
  }
  .guide-list li:last-child { border-bottom: none; }
  .guide-list li:hover { background: #f8fafc; }
  .guide-num {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #eff6ff;
    color: var(--brand);
    border-radius: 8px;
    font-size: .82rem;
    font-weight: 800;
  }
  .guide-list li:nth-child(n+4) .guide-num { background: #f1f5f9; color: var(--ink-soft); }
  .guide-main { flex: 1; min-width: 0; }
  .guide-title { font-weight: 700; font-size: .96rem; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .guide-excerpt { font-size: .82rem; color: var(--ink-faint); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .guide-link { color: var(--brand); font-size: .85rem; font-weight: 700; flex-shrink: 0; display: inline-flex; align-items: center; gap: .3rem; transition: gap .2s; }
  .guide-link:hover { gap: .55rem; }

  /* ===== CTA ===== */
  .cta-block {
    position: relative;
    background: linear-gradient(120deg, #0f172a, #1e3a8a 70%, #2563eb);
    border-radius: 2rem;
    padding: 4rem 3rem;
    color: #fff;
    overflow: hidden;
    isolation: isolate;
  }
  .cta-block::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-3.png') no-repeat right center / cover;
    opacity: .25;
    z-index: -1;
  }
  .cta-block h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.02em; }
  .cta-block p { color: #dbeafe; margin-top: .75rem; max-width: 560px; }

  /* ===== 页脚 ===== */
  .footer-site {
    background: #0b1120;
    color: #94a3b8;
    padding: 4rem 0 0;
    margin-top: 5.5rem;
    font-size: .9rem;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 2.5rem;
    padding-bottom: 2.5rem;
  }
  .footer-brand .logo-main { color: #fff; font-size: 1.35rem; margin-bottom: 1rem; }
  .footer-brand .logo-icon { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
  .footer-brand p { line-height: 1.8; margin-top: .6rem; }
  .footer-col h4 { font-size: .9rem; font-weight: 700; color: #e2e8f0; margin-bottom: 1.1rem; letter-spacing: .05em; }
  .footer-col ul { list-style: none; }
  .footer-col li { margin-bottom: .65rem; }
  .footer-col a { transition: color .2s, padding-left .2s; }
  .footer-col a:hover { color: #60a5fa; padding-left: 4px; }
  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 1.4rem 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: .8rem;
    font-size: .82rem;
    color: #64748b;
  }
  .footer-bottom a { color: #94a3b8; }
  .footer-bottom a:hover { color: #60a5fa; }

  /* ===== 响应式 ===== */
  @media (max-width: 1024px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-wrap { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .tutorial-card { grid-template-columns: 1fr; }
    .tutorial-media { min-height: 200px; }
  }
  @media (max-width: 768px) {
    :root { --space-section: 3.5rem; }
    .nav-menu {
      position: fixed;
      top: 0;
      right: -100%;
      width: 78%;
      max-width: 340px;
      height: 100vh;
      background: #fff;
      flex-direction: column;
      align-items: stretch;
      justify-content: flex-start;
      padding: 6rem 1.75rem 2rem;
      gap: .4rem;
      box-shadow: -20px 0 50px rgba(15,23,42,.15);
      transition: right .35s ease;
      z-index: 100;
    }
    .nav-menu.open { right: 0; }
    .nav-menu li { width: 100%; }
    .nav-menu a { width: 100%; border-radius: 12px; font-size: .98rem; padding: .85rem 1.1rem; }
    .header-cta { display: none; }
    .nav-toggle { display: inline-flex; }
    .page-hero { padding: 3.5rem 0 3rem; }
    .section-head h2 { font-size: 1.6rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .cta-block { padding: 3rem 1.6rem; }
  }
  @media (max-width: 520px) {
    .container-x { padding-left: 1rem; padding-right: 1rem; }
    .topbar-inner { flex-wrap: wrap; justify-content: center; text-align: center; gap: .3rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .stats-item .num { font-size: 1.4rem; }
    .steps-wrap { grid-template-columns: 1fr; }
    .tutorial-body { padding: 1.5rem 1.25rem; }
    .guide-list li { flex-wrap: wrap; padding: 1rem 1.1rem; }
    .guide-link { width: 100%; justify-content: flex-end; }
    .cta-block { border-radius: 1.25rem; }
    .footer-bottom { justify-content: center; text-align: center; }
  }

/* roulang page: category3 */
:root {
    --font-base: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    --brand-main: #3f54d8;
    --brand-dark: #1e2b6d;
    --brand-light: #7d97f0;
    --accent: #0ea5e9;
    --bg-page: #f8fafc;
    --surface: #ffffff;
    --text-main: #0f172a;
    --text-weak: #64748b;
    --border-line: #e2e8f0;
    --radius-card: 18px;
    --radius-sm: 10px;
    --shadow-card: 0 10px 30px rgba(63, 84, 216, .08);
    --shadow-pop: 0 18px 45px rgba(15, 23, 42, .14);
    --max-width: 1240px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-base);
    background: var(--bg-page);
    color: var(--text-main);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
  }

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

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

  ul, ol {
    list-style: none;
  }

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

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

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

  /* ===== Topbar ===== */
  .topbar {
    background: linear-gradient(135deg, #1e2b6d 0%, #2b398c 60%, #3343b5 100%);
    color: #fff;
    font-size: 13px;
    padding: 8px 0;
  }

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

  .topbar-left {
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: .9;
  }

  .topbar-left i {
    color: #a0b8f7;
  }

  .topbar-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    border-radius: 999px;
    background: rgba(255,255,255,.12);
    padding: 4px 16px;
    transition: background .2s;
  }

  .topbar-link:hover {
    background: rgba(255,255,255,.22);
  }

  /* ===== Header / Nav ===== */
  .site-header {
    background: var(--surface);
    box-shadow: 0 4px 20px rgba(15,23,42,.06);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-line);
  }

  .header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    height: 76px;
  }

  .logo-main {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--brand-dark);
    white-space: nowrap;
  }

  .logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, #3f54d8, #0ea5e9);
    border-radius: 14px;
    color: #fff;
    font-size: 18px;
    box-shadow: 0 8px 18px rgba(63,84,216,.35);
  }

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

  .nav-menu a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-weak);
    transition: all .25s ease;
  }

  .nav-menu a i {
    font-size: 14px;
    opacity: .85;
  }

  .nav-menu a:hover {
    background: #eef4ff;
    color: var(--brand-main);
  }

  .nav-menu a.active {
    background: linear-gradient(135deg, #3f54d8, #5b74e6);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 8px 20px rgba(63,84,216,.28);
  }

  .header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #f1f5f9;
    color: var(--brand-main);
    font-weight: 600;
    font-size: 14px;
    padding: 10px 20px;
    border-radius: 999px;
    border: 1px solid var(--border-line);
    transition: all .25s;
    white-space: nowrap;
  }

  .header-cta:hover {
    background: var(--brand-main);
    color: #fff;
    border-color: var(--brand-main);
    box-shadow: 0 8px 20px rgba(63,84,216,.3);
  }

  .nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: #f1f5f9;
    color: var(--brand-dark);
    font-size: 18px;
    align-items: center;
    justify-content: center;
  }

  /* ===== Hero ===== */
  .hero-category {
    position: relative;
    min-height: 360px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(15,23,42,.92) 0%, rgba(30,43,109,.82) 70%, rgba(14,165,233,.74) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
    padding: 70px 0;
    overflow: hidden;
  }

  .hero-category::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 75% 30%, rgba(14,165,233,.25) 0%, transparent 55%);
    pointer-events: none;
  }

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

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.25);
    backdrop-filter: blur(6px);
    color: #e0f2fe;
    font-size: 13px;
    padding: 8px 18px;
    border-radius: 999px;
    margin-bottom: 20px;
  }

  .hero-badge i {
    color: #7dd3fc;
  }

  .hero-category h1 {
    font-size: clamp(34px, 5vw, 56px);
    line-height: 1.15;
    font-weight: 800;
    color: #fff;
    letter-spacing: -1px;
    max-width: 720px;
    margin-bottom: 18px;
  }

  .hero-category h1 span {
    color: #7dd3fc;
  }

  .hero-category p {
    color: rgba(255,255,255,.82);
    font-size: 17px;
    max-width: 640px;
    margin-bottom: 30px;
  }

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

  .btn-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #3f54d8, #5b74e6);
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    padding: 14px 28px;
    border-radius: 999px;
    box-shadow: 0 12px 28px rgba(63,84,216,.35);
    transition: all .3s ease;
  }

  .btn-brand:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 36px rgba(63,84,216,.42);
  }

  .btn-ghost-light {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.35);
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    padding: 14px 28px;
    border-radius: 999px;
    transition: all .3s ease;
  }

  .btn-ghost-light:hover {
    background: rgba(255,255,255,.2);
    border-color: rgba(255,255,255,.55);
  }

  .hero-stats {
    display: flex;
    gap: 32px;
    margin-top: 42px;
    flex-wrap: wrap;
  }

  .hero-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .hero-stat strong {
    font-size: 26px;
    color: #fff;
    font-weight: 700;
  }

  .hero-stat span {
    font-size: 13px;
    color: rgba(255,255,255,.68);
  }

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

  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 40px;
  }

  .section-head-left {
    max-width: 680px;
  }

  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand-main);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: .12em;
    text-transform: uppercase;
    margin-bottom: 10px;
  }

  .section-eyebrow i {
    font-size: 14px;
  }

  .section-title {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.5px;
    color: var(--text-main);
    margin-bottom: 10px;
  }

  .section-desc {
    font-size: 15px;
    color: var(--text-weak);
    line-height: 1.7;
  }

  .section-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--brand-main);
    padding: 10px 20px;
    border-radius: 999px;
    border: 1px solid #c3d4fb;
    transition: all .25s;
    white-space: nowrap;
  }

  .section-more:hover {
    background: var(--brand-main);
    color: #fff;
    border-color: var(--brand-main);
  }

  /* ===== Tags ===== */
  .filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 36px;
  }

  .filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--border-line);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-weak);
    transition: all .25s;
  }

  .filter-tag:hover,
  .filter-tag.active {
    background: linear-gradient(135deg, #3f54d8, #5b74e6);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 22px rgba(63,84,216,.28);
  }

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

  .card-news {
    background: var(--surface);
    border-radius: var(--radius-card);
    border: 1px solid var(--border-line);
    overflow: hidden;
    transition: all .3s ease;
    display: flex;
    flex-direction: column;
  }

  .card-news:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-pop);
    border-color: #c3d4fb;
  }

  .card-news-media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #e2e8f0;
  }

  .card-news-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
  }

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

  .card-news-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(15,23,42,.7);
    backdrop-filter: blur(6px);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,.2);
  }

  .card-news-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
  }

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

  .card-news-meta i {
    font-size: 12px;
    color: var(--brand-light);
  }

  .card-news-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.45;
    color: var(--text-main);
    transition: color .2s;
  }

  .card-news:hover .card-news-title {
    color: var(--brand-main);
  }

  .card-news-summary {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .card-news-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border-line);
    font-size: 13px;
    color: var(--text-weak);
  }

  .card-news-footer a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--brand-main);
    font-weight: 600;
    transition: gap .2s;
  }

  .card-news-footer a:hover {
    gap: 10px;
  }

  /* ===== Two column ===== */
  .split-grid {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 30px;
  }

  .panel {
    background: var(--surface);
    border: 1px solid var(--border-line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 30px;
  }

  .panel-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 24px;
  }

  .panel-title i {
    color: var(--brand-main);
  }

  .rank-list {
    display: flex;
    flex-direction: column;
  }

  .rank-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 12px;
    border-radius: 14px;
    transition: background .2s;
  }

  .rank-item:hover {
    background: #f8fafc;
  }

  .rank-num {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: #eef4ff;
    color: var(--brand-main);
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
  }

  .rank-item:nth-child(1) .rank-num,
  .rank-item:nth-child(2) .rank-num,
  .rank-item:nth-child(3) .rank-num {
    background: linear-gradient(135deg, #3f54d8, #5b74e6);
    color: #fff;
    box-shadow: 0 6px 14px rgba(63,84,216,.25);
  }

  .rank-info {
    flex: 1;
    min-width: 0;
  }

  .rank-info h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .rank-info p {
    font-size: 12px;
    color: var(--text-weak);
  }

  .rank-item i {
    color: #94a3b8;
    font-size: 13px;
  }

  .notice-list li {
    display: flex;
    gap: 14px;
    padding: 15px 0;
    border-bottom: 1px dashed var(--border-line);
  }

  .notice-list li:last-child {
    border-bottom: none;
  }

  .notice-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: #eef4ff;
    color: var(--brand-main);
    font-size: 15px;
  }

  .notice-text {
    flex: 1;
    min-width: 0;
  }

  .notice-text h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 3px;
    color: var(--text-main);
  }

  .notice-text span {
    font-size: 12px;
    color: var(--text-weak);
  }

  /* ===== Timeline ===== */
  .timeline-section {
    background: linear-gradient(180deg, #f8fafc 0%, #eef4ff 100%);
    padding: 80px 0;
  }

  .timeline {
    position: relative;
    max-width: 860px;
    margin: 0 auto;
    padding-left: 30px;
  }

  .timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #3f54d8, #7dd3fc);
    border-radius: 2px;
  }

  .timeline-item {
    position: relative;
    padding: 0 0 34px 30px;
  }

  .timeline-item:last-child {
    padding-bottom: 0;
  }

  .timeline-item::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--surface);
    border: 3px solid var(--brand-main);
    box-shadow: 0 0 0 5px rgba(63,84,216,.15);
  }

  .timeline-date {
    font-size: 13px;
    font-weight: 600;
    color: var(--brand-main);
    margin-bottom: 6px;
    display: block;
  }

  .timeline-item h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 6px;
  }

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

  /* ===== FAQ ===== */
  .faq-list {
    max-width: 860px;
    margin: 0 auto;
  }

  .faq-item {
    background: var(--surface);
    border: 1px solid var(--border-line);
    border-radius: 16px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .2s;
  }

  .faq-item.active {
    border-color: #c3d4fb;
    box-shadow: var(--shadow-card);
  }

  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    text-align: left;
    transition: color .2s;
  }

  .faq-question:hover {
    color: var(--brand-main);
  }

  .faq-question i {
    color: var(--brand-main);
    font-size: 14px;
    transition: transform .3s;
    flex-shrink: 0;
  }

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

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
  }

  .faq-answer p {
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.75;
  }

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

  .cta-box {
    position: relative;
    background: linear-gradient(135deg, #1e2b6d 0%, #3343b5 45%, #0ea5e9 120%);
    border-radius: 28px;
    padding: 60px;
    overflow: hidden;
  }

  .cta-box::before {
    content: '';
    position: absolute;
    right: -80px;
    top: -80px;
    width: 280px;
    height: 280px;
    background: rgba(255,255,255,.08);
    border-radius: 50%;
  }

  .cta-box::after {
    content: '';
    position: absolute;
    right: 40px;
    bottom: -100px;
    width: 220px;
    height: 220px;
    border: 40px solid rgba(255,255,255,.05);
    border-radius: 50%;
  }

  .cta-box .container-x {
    position: relative;
    z-index: 2;
  }

  .cta-title {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 800;
    color: #fff;
    line-height: 1.3;
    margin-bottom: 14px;
  }

  .cta-desc {
    color: rgba(255,255,255,.75);
    font-size: 16px;
    max-width: 560px;
    line-height: 1.7;
    margin-bottom: 32px;
  }

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

  /* ===== Footer ===== */
  .footer-site {
    background: #0f172a;
    color: #cbd5e1;
    padding: 70px 0 30px;
    border-top: 3px solid #3f54d8;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr .8fr .8fr .9fr;
    gap: 40px;
    margin-bottom: 48px;
  }

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

  .footer-brand p {
    font-size: 14px;
    line-height: 1.75;
    max-width: 340px;
    color: #94a3b8;
  }

  .footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 18px;
    letter-spacing: .02em;
  }

  .footer-col ul li {
    margin-bottom: 12px;
  }

  .footer-col ul li a {
    color: #94a3b8;
    font-size: 14px;
    transition: color .2s;
  }

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

  .footer-col ul li i {
    margin-right: 8px;
    color: #5b74e6;
  }

  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-top: 26px;
    border-top: 1px solid rgba(255,255,255,.08);
    font-size: 13px;
    color: #64748b;
    flex-wrap: wrap;
  }

  .footer-bottom a {
    color: #94a3b8;
  }

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

  /* ===== Mobile menu ===== */
  .mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100vh;
    background: var(--surface);
    z-index: 200;
    padding: 30px 24px;
    box-shadow: -20px 0 50px rgba(0,0,0,.15);
    transform: translateX(100%);
    transition: transform .3s ease;
    overflow-y: auto;
  }

  .mobile-menu.open {
    transform: translateX(0);
  }

  .mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 20px;
  }

  .mobile-menu ul a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 14px;
    color: var(--text-main);
    font-weight: 500;
    font-size: 15px;
    transition: background .2s;
  }

  .mobile-menu ul a i {
    width: 20px;
    text-align: center;
    color: var(--brand-main);
  }

  .mobile-menu ul a.active {
    background: #eef4ff;
    color: var(--brand-main);
    font-weight: 600;
  }

  .mobile-close {
    display: flex;
    justify-content: flex-end;
  }

  .mobile-close button {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    font-size: 16px;
  }

  .mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,.5);
    z-index: 199;
    backdrop-filter: blur(2px);
  }

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

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

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

  @media (max-width: 768px) {
    .header-main {
      height: 64px;
    }

    .nav-menu,
    .header-cta {
      display: none;
    }

    .nav-toggle {
      display: flex;
    }

    .topbar-left span {
      display: none;
    }

    .topbar-left i {
      font-size: 16px;
    }

    .section-x {
      padding: 56px 0;
    }

    .section-head {
      flex-direction: column;
      align-items: flex-start;
    }

    .cta-box {
      padding: 40px 24px;
      border-radius: 20px;
    }

    .hero-category {
      min-height: 320px;
      padding: 50px 0;
    }
  }

  @media (max-width: 520px) {
    .container-x {
      padding: 0 18px;
    }

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

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 30px;
    }

    .hero-stats {
      gap: 24px;
    }

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

    .timeline {
      padding-left: 22px;
    }

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

    .category-hero-tools {
      flex-wrap: wrap;
    }
  }

/* roulang page: article */
:root {
  --primary: #0f766e;
  --primary-dark: #0f3d3e;
  --primary-deep: #0b2e30;
  --primary-soft: #ccfbf1;
  --primary-glow: rgba(15, 118, 110, 0.18);
  --accent: #f59e0b;
  --accent-soft: #fef3c7;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-deep: #f0fdfa;
  --text: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --border-dark: #cbd5e1;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 28px 64px rgba(15, 23, 42, 0.12);
  --shadow-primary: 0 16px 40px rgba(15, 118, 110, 0.22);
  --transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
input, select, textarea {
  font-family: inherit;
}
.container-x {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.topbar {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  letter-spacing: 0.02em;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 36px;
  gap: 12px;
}
.topbar a {
  color: rgba(255, 255, 255, 0.85);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.topbar a:hover {
  color: #fff;
}
.topbar-status {
  display: flex;
  align-items: center;
  gap: 8px;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.18);
  display: inline-block;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 24px;
}
.logo-main {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: 0.02em;
  line-height: 1.2;
  white-space: nowrap;
}
.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(145deg, var(--primary), #14b8a6);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  font-size: 18px;
  box-shadow: var(--shadow-primary);
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}
.nav-menu li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  border-radius: var(--radius-full);
  line-height: 1.4;
  white-space: nowrap;
}
.nav-menu li a i {
  font-size: 14px;
  color: var(--text-light);
  transition: var(--transition);
}
.nav-menu li a:hover {
  color: var(--primary);
  background: var(--bg-soft);
}
.nav-menu li a:hover i {
  color: var(--primary);
}
.nav-menu li a.active {
  color: var(--primary-dark);
  background: linear-gradient(145deg, var(--primary-soft), #d6fdf5);
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(15, 118, 110, 0.12);
}
.nav-menu li a.active i {
  color: var(--primary);
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--bg-soft);
  color: var(--primary-dark);
  align-items: center;
  justify-content: center;
  font-size: 20px;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.menu-toggle:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
}
.page-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 88px 0 110px;
  color: #fff;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 46, 48, 0.96) 0%, rgba(15, 118, 110, 0.82) 50%, rgba(15, 118, 110, 0.55) 100%);
}
.page-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -140px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 65%);
  border-radius: 50%;
}
.page-hero .container-x {
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
  padding: 7px 18px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  backdrop-filter: blur(10px);
  margin-bottom: 22px;
}
.hero-badge i {
  color: #a7f3d0;
}
.page-hero h1 {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  max-width: 860px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  margin-bottom: 18px;
}
.page-hero .hero-desc {
  font-size: 17px;
  line-height: 1.85;
  max-width: 720px;
  color: rgba(255, 255, 255, 0.86);
  margin-bottom: 26px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  margin-top: 28px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.82);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb a:hover {
  color: #fff;
}
.breadcrumb i {
  font-size: 11px;
}
.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.45);
  font-size: 11px;
}
.hero-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.94);
  padding: 7px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(8px);
}
.meta-chip i {
  color: #a7f3d0;
  font-size: 12px;
}
.article-section {
  padding: 64px 0 80px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 40px;
  align-items: start;
}
.article-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.article-cover {
  position: relative;
  aspect-ratio: 16 / 7.8;
  overflow: hidden;
  background: var(--bg-deep);
}
.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}
.article-card:hover .article-cover img {
  transform: scale(1.015);
}
.article-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 58%, rgba(15, 23, 42, 0.28));
}
.article-body {
  padding: 36px 40px 44px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 14px;
}
.meta-item i {
  color: var(--primary);
  font-size: 13px;
}
.badge-cat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(145deg, var(--primary), #0d9488);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  box-shadow: 0 6px 18px rgba(15, 118, 110, 0.25);
}
.article-divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
  border: none;
}
.cms-content {
  font-size: 16px;
  line-height: 1.95;
  color: var(--text-body);
}
.cms-content h2 {
  font-size: 25px;
  font-weight: 800;
  color: var(--text);
  margin: 40px 0 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--bg-soft);
  letter-spacing: -0.01em;
  line-height: 1.45;
}
.cms-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 32px 0 14px;
  line-height: 1.5;
}
.cms-content p {
  margin-bottom: 18px;
}
.cms-content ul,
.cms-content ol {
  margin: 0 0 20px 20px;
}
.cms-content li {
  margin-bottom: 8px;
  padding-left: 4px;
}
.cms-content ul li {
  list-style: none;
  position: relative;
  padding-left: 26px;
}
.cms-content ul li::before {
  content: "\f058";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 14px;
  color: var(--primary);
  position: absolute;
  left: 0;
  top: 5px;
}
.cms-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--bg-deep);
  padding: 18px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  color: var(--text-body);
  font-style: normal;
}
.cms-content code {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--primary-dark);
}
.cms-content a {
  color: var(--primary);
  font-weight: 600;
  border-bottom: 1px solid rgba(15, 118, 110, 0.3);
}
.cms-content a:hover {
  border-color: var(--primary);
}
.article-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.side-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.side-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.side-card-head i {
  width: 36px;
  height: 36px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}
.side-card-head h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}
.side-list {
  list-style: none;
}
.side-list li {
  border-bottom: 1px solid var(--bg-soft);
}
.side-list li:last-child {
  border-bottom: none;
}
.side-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 0;
  color: var(--text-body);
  font-size: 15px;
  font-weight: 500;
}
.side-list a i {
  font-size: 12px;
  color: var(--text-light);
  transition: var(--transition);
}
.side-list a:hover {
  color: var(--primary);
  padding-left: 6px;
}
.side-list a:hover i {
  color: var(--primary);
}
.tip-list {
  list-style: none;
}
.tip-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid var(--bg-soft);
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.6;
}
.tip-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.tip-list li i {
  color: var(--primary);
  font-size: 14px;
  margin-top: 3px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}
.alert-card {
  background: linear-gradient(145deg, var(--primary-dark), #134e4a);
  border: none;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.alert-card::after {
  content: "";
  position: absolute;
  right: -50px;
  top: -50px;
  width: 140px;
  height: 140px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 50%;
}
.alert-card .side-card-head i {
  background: rgba(255, 255, 255, 0.16);
  color: #a7f3d0;
}
.alert-card .side-card-head h3 {
  color: #fff;
}
.alert-card p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 16px;
}
.alert-card .btn-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
.alert-card .btn-light:hover {
  background: var(--primary-soft);
  transform: translateY(-2px);
}
.related-section {
  padding: 72px 0 72px;
  background: var(--bg);
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 36px;
}
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-head .eyebrow i {
  font-size: 14px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  letter-spacing: -0.015em;
}
.section-head p {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 480px;
  line-height: 1.7;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}
.related-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(15, 118, 110, 0.32);
}
.related-pic {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-deep);
}
.related-pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}
.related-card:hover .related-pic img {
  transform: scale(1.05);
}
.related-pic .pic-tag {
  position: absolute;
  left: 16px;
  top: 16px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.92);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}
.related-body {
  padding: 24px 26px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.related-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
  margin-bottom: 10px;
  transition: var(--transition);
}
.related-body h3:hover {
  color: var(--primary);
}
.related-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 18px;
}
.related-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-light);
  font-size: 13px;
}
.related-meta i {
  color: var(--primary);
}
.related-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.security-section {
  padding: 72px 0;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border);
}
.sec-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}
.sec-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.sec-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(15, 118, 110, 0.26);
}
.sec-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  border-radius: 18px;
  background: linear-gradient(145deg, var(--primary-soft), #d6fdf5);
  color: var(--primary-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 8px 20px rgba(15, 118, 110, 0.1);
}
.sec-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.sec-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  margin: 0;
}
.cta-band {
  padding: 72px 0;
  background: var(--bg);
}
.cta-panel {
  position: relative;
  border-radius: var(--radius-lg);
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  padding: 64px 56px;
  color: #fff;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  box-shadow: var(--shadow-lg);
}
.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(11, 46, 48, 0.97), rgba(15, 118, 110, 0.86));
}
.cta-panel > * {
  position: relative;
  z-index: 2;
}
.cta-info h3 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 12px;
}
.cta-info p {
  color: rgba(255, 255, 255, 0.84);
  font-size: 16px;
  line-height: 1.75;
  max-width: 560px;
  margin-bottom: 0;
}
.cta-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.btn-main {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(145deg, var(--accent), #f97316);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  padding: 14px 30px;
  border-radius: var(--radius-full);
  box-shadow: 0 12px 30px rgba(245, 158, 11, 0.35);
  transition: var(--transition);
  border: none;
}
.btn-main:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(245, 158, 11, 0.45);
  color: #fff;
}
.btn-main:active {
  transform: translateY(-1px);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.36);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.24);
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
  transform: translateY(-2px);
}
.footer-site {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.72);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .logo-main {
  color: #fff;
  margin-bottom: 18px;
  font-size: 20px;
}
.footer-brand .logo-icon {
  background: linear-gradient(145deg, #14b8a6, #0d9488);
  font-size: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.85;
  max-width: 360px;
  color: rgba(255, 255, 255, 0.62);
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 12px;
}
.footer-col ul li a {
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-col ul li i {
  color: #5eead4;
  font-size: 13px;
  width: 18px;
  text-align: center;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.62);
}
.footer-bottom a:hover {
  color: #fff;
}
.not-found-wrap {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 80px 40px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.not-found-icon {
  width: 88px;
  height: 88px;
  margin: 0 auto 28px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 36px;
  box-shadow: var(--shadow-sm);
}
.not-found-wrap h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 14px;
}
.not-found-wrap p {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.8;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(145deg, var(--primary), #0d9488);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  padding: 14px 34px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-primary);
  transition: var(--transition);
  border: none;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 48px rgba(15, 118, 110, 0.32);
  color: #fff;
}
.btn-primary:active {
  transform: translateY(-1px);
}
.btn-primary:focus-visible,
.btn-main:focus-visible,
.btn-ghost:focus-visible,
.nav-menu li a:focus-visible {
  outline: 3px solid rgba(245, 158, 11, 0.6);
  outline-offset: 3px;
}
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-side {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
    padding: 48px 40px;
  }
  .related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 768px) {
  .container-x {
    padding-left: 18px;
    padding-right: 18px;
  }
  .topbar-inner {
    min-height: 34px;
    font-size: 12px;
  }
  .header-inner {
    min-height: 64px;
    flex-wrap: wrap;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 18px 20px;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.14);
    border-radius: 0 0 20px 20px;
  }
  .nav-menu.open {
    display: flex;
  }
  .nav-menu li a {
    padding: 13px 18px;
    font-size: 16px;
    border-radius: 14px;
    justify-content: flex-start;
  }
  .page-hero {
    padding: 64px 0 76px;
  }
  .page-hero h1 {
    font-size: 30px;
  }
  .page-hero .hero-desc {
    font-size: 15px;
  }
  .breadcrumb {
    margin-top: 20px;
  }
  .article-section {
    padding: 40px 0 56px;
  }
  .article-body {
    padding: 28px 22px 32px;
  }
  .article-cover {
    aspect-ratio: 16 / 10;
  }
  .article-side {
    grid-template-columns: 1fr;
  }
  .related-section {
    padding: 52px 0;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .security-section {
    padding: 52px 0;
  }
  .sec-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .cta-panel {
    padding: 40px 28px;
  }
  .cta-info h3 {
    font-size: 24px;
  }
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-main,
  .btn-ghost {
    justify-content: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .sec-card {
    padding: 28px 24px;
  }
  .not-found-wrap {
    padding: 52px 24px;
  }
  .not-found-icon {
    width: 68px;
    height: 68px;
    font-size: 26px;
  }
}
@media (max-width: 520px) {
  .topbar-inner {
    justify-content: center;
  }
  .topbar .hide-mobile {
    display: none;
  }
  .header-inner {
    gap: 12px;
  }
  .logo-main {
    font-size: 18px;
  }
  .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 15px;
  }
  .page-hero h1 {
    font-size: 26px;
  }
  .hero-meta {
    gap: 8px;
  }
  .meta-chip {
    padding: 6px 12px;
    font-size: 12px;
  }
  .article-body {
    padding: 22px 18px 28px;
  }
  .article-meta {
    gap: 10px;
  }
  .cms-content {
    font-size: 15px;
  }
  .cms-content h2 {
    font-size: 21px;
  }
  .cms-content h3 {
    font-size: 18px;
  }
  .section-head h2 {
    font-size: 23px;
  }
  .related-body {
    padding: 20px 20px 24px;
  }
  .cta-panel {
    padding: 32px 22px;
  }
  .breadcrumb {
    font-size: 13px;
  }
}