/* roulang page: index */
:root {
            --primary: #1e3a8a;
            --primary-dark: #1e2f6e;
            --primary-light: #e0e9ff;
            --accent: #f97316;
            --accent-hover: #ea580c;
            --bg: #f6f8fc;
            --surface: #ffffff;
            --text: #1a2233;
            --muted: #64748b;
            --border: #e2e8f0;
            --radius: 1rem;
            --radius-lg: 1.5rem;
            --shadow-sm: 0 2px 8px rgba(2, 12, 27, .05);
            --shadow-md: 0 8px 24px rgba(2, 12, 27, .08);
            --shadow-lg: 0 18px 40px rgba(2, 12, 27, .12);
            --container: 1200px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(255, 255, 255, .88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            gap: 20px;
            height: 72px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.28rem;
            white-space: nowrap;
            color: var(--text);
        }
        .logo-badge {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), #3b82f6);
            border-radius: 12px;
            display: grid;
            place-items: center;
            color: #fff;
            font-size: 1.05rem;
            box-shadow: 0 6px 16px rgba(30, 58, 138, .30);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 auto;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 999px;
            color: var(--muted);
            font-weight: 600;
            font-size: .95rem;
            transition: background .2s, color .2s;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background: var(--primary-light);
            color: var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: auto;
        }
        .search-box {
            position: relative;
        }
        .search-box input {
            height: 40px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: #f8fafc;
            padding: 0 16px 0 38px;
            font-size: .9rem;
            width: 190px;
            outline: none;
            transition: border-color .2s, box-shadow .2s, background .2s;
            color: var(--text);
        }
        .search-box input:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(30, 58, 138, .1);
        }
        .search-box i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--muted);
            font-size: .9rem;
            pointer-events: none;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 999px;
            font-weight: 700;
            font-size: .92rem;
            border: none;
            cursor: pointer;
            transition: transform .2s, box-shadow .2s, background .2s, color .2s;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 20px rgba(249, 115, 22, .3);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(249, 115, 22, .35);
        }
        .btn-outline {
            border: 1px solid rgba(255, 255, 255, .55);
            color: #fff;
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
        }
        .btn-dark {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(30, 58, 138, .2);
        }
        .btn-dark:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(30, 58, 138, .28);
        }
        .btn-ghost {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary-light);
        }
        .btn-ghost:hover {
            background: var(--primary-light);
        }
        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: var(--surface);
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--text);
            cursor: pointer;
            transition: background .2s;
        }
        .mobile-menu-btn:hover {
            background: #f1f5f9;
        }
        .mobile-menu {
            display: none;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 20px 20px;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 14px;
            border-radius: 12px;
            font-weight: 600;
            color: var(--text);
            transition: background .2s;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-menu .mobile-btn {
            margin-top: 12px;
        }
        .hero-section {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 130px 0 120px;
            color: #fff;
            text-align: center;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, .72), rgba(30, 58, 138, .62) 55%, rgba(2, 12, 27, .84));
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .16);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: .86rem;
            font-weight: 600;
            letter-spacing: .02em;
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: clamp(2.4rem, 5.5vw, 4.2rem);
            font-weight: 900;
            line-height: 1.18;
            letter-spacing: -.02em;
            margin-bottom: 20px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, .25);
        }
        .hero-desc {
            font-size: clamp(1rem, 1.6vw, 1.2rem);
            max-width: 640px;
            margin: 0 auto 36px;
            color: rgba(255, 255, 255, .9);
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-features {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 46px;
        }
        .hero-feature {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: .9rem;
            font-weight: 600;
            color: rgba(255, 255, 255, .85);
        }
        .section {
            padding: 96px 0;
        }
        .section-alt {
            background: var(--surface);
        }
        .section-head {
            max-width: 740px;
            margin: 0 auto 56px;
            text-align: center;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: .85rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -.02em;
            color: var(--text);
        }
        .section-desc {
            color: var(--muted);
            font-size: 1.1rem;
            margin-top: 14px;
        }
        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: transform .25s, box-shadow .25s, border-color .25s;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: grid;
            place-items: center;
            font-size: 1.4rem;
            background: linear-gradient(135deg, var(--primary), #3b82f6);
            color: #fff;
            box-shadow: 0 8px 20px rgba(30, 58, 138, .25);
            margin-bottom: 18px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--surface);
            transition: transform .25s, box-shadow .25s;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card .cover-wrap {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .category-card .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .category-card .cover-mask {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0) 35%, rgba(15, 23, 42, .1));
        }
        .category-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        .category-card .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 999px;
            padding: 4px 12px;
            font-size: .8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .category-card h3 {
            font-size: 1.24rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--text);
        }
        .category-card p {
            color: var(--muted);
            font-size: .94rem;
            line-height: 1.7;
            margin-bottom: 18px;
            flex: 1;
        }
        .link-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            color: var(--primary);
            font-size: .92rem;
            transition: gap .2s;
        }
        .link-more:hover {
            gap: 12px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 22px 26px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            transition: transform .2s, box-shadow .2s, border-color .2s;
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .news-badge {
            flex-shrink: 0;
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 999px;
            padding: 4px 14px;
            font-size: .8rem;
            font-weight: 700;
        }
        .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-body h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 4px;
            transition: color .2s;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-body h3:hover {
            color: var(--primary);
        }
        .news-body p {
            color: var(--muted);
            font-size: .9rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-time {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--muted);
            font-size: .85rem;
        }
        .news-empty {
            padding: 32px;
            text-align: center;
            background: var(--surface);
            border: 1px dashed var(--border);
            border-radius: 16px;
            color: var(--muted);
        }
        .step-wrap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 48px;
        }
        .step-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            position: relative;
        }
        .step-num {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1;
            color: var(--primary-light);
            margin-bottom: 16px;
        }
        .step-item h3 {
            font-size: 1.18rem;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .step-item p {
            color: var(--muted);
            font-size: .94rem;
            margin: 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
            display: flex;
            align-items: baseline;
            justify-content: center;
            gap: 2px;
        }
        .stat-label {
            color: var(--muted);
            font-size: .92rem;
            margin-top: 6px;
        }
        .featured-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--surface);
            transition: transform .25s, box-shadow .25s;
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .featured-card .featured-cover {
            height: 190px;
            overflow: hidden;
        }
        .featured-card .featured-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-card .featured-body {
            padding: 24px;
        }
        .featured-card .featured-body h3 {
            font-size: 1.16rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .featured-card .featured-body p {
            color: var(--muted);
            font-size: .92rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #eef2ff;
            color: var(--primary);
            border-radius: 999px;
            padding: 5px 14px;
            font-size: .8rem;
            font-weight: 700;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 24px 28px;
            transition: border-color .2s, box-shadow .2s;
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            font-size: 1.06rem;
            cursor: pointer;
            gap: 16px;
        }
        .faq-q i {
            color: var(--primary);
            flex-shrink: 0;
        }
        .faq-a {
            margin-top: 14px;
            color: var(--muted);
            font-size: .96rem;
            border-top: 1px dashed var(--border);
            padding-top: 14px;
        }
        .cta-section {
            background: linear-gradient(135deg, var(--primary), #1d4ed8 55%, #2563eb);
            border-radius: 2rem;
            padding: 70px 56px;
            position: relative;
            overflow: hidden;
            text-align: center;
            color: #fff;
        }
        .cta-section .cta-title {
            font-size: clamp(1.8rem, 3.6vw, 2.6rem);
            font-weight: 900;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .cta-section .cta-desc {
            max-width: 560px;
            margin: 0 auto 30px;
            color: rgba(255, 255, 255, .85);
            font-size: 1.06rem;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 64px 0 28px;
            margin-top: 96px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .footer-brand .logo .logo-badge {
            background: linear-gradient(135deg, #f97316, #fbbf24);
            box-shadow: none;
        }
        .footer-brand p {
            max-width: 340px;
            font-size: .92rem;
            line-height: 1.8;
            margin: 0;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 800;
            margin-bottom: 18px;
        }
        .footer-links a {
            display: block;
            padding: 6px 0;
            color: #94a3b8;
            font-size: .92rem;
            transition: color .2s, padding-left .2s;
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 24px;
            text-align: center;
            font-size: .88rem;
            color: #64748b;
        }
        .footer-bottom a {
            color: #94a3b8;
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .section-banner {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            border-radius: 2rem;
            padding: 56px;
            overflow: hidden;
            color: #fff;
        }
        .section-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15, 23, 42, .72), rgba(30, 58, 138, .35));
        }
        .section-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 560px;
        }
        .section-banner h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-banner p {
            color: rgba(255, 255, 255, .85);
            margin-bottom: 20px;
        }
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .mobile-menu-btn {
                display: inline-flex;
            }
            .search-box input {
                width: 150px;
            }
            .header-actions .btn-outline {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
            .header-inner {
                height: 64px;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo-badge {
                width: 34px;
                height: 34px;
                font-size: .95rem;
            }
            .header-actions .search-box,
            .header-actions .btn-dark {
                display: none;
            }
            .hero-section {
                padding: 84px 0 78px;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 280px;
            }
            .section {
                padding: 64px 0;
            }
            .section-head {
                margin-bottom: 40px;
            }
            .step-wrap {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .news-body h3,
            .news-body p {
                white-space: normal;
                overflow: visible;
                text-overflow: clip;
            }
            .cta-section {
                padding: 46px 24px;
                border-radius: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .section-banner {
                padding: 36px 24px;
                border-radius: 1.4rem;
            }
        }
        @media (max-width: 520px) {
            .header-actions {
                gap: 8px;
            }
            .header-actions .btn {
                padding: 8px 16px;
                font-size: .85rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-number {
                font-size: 2rem;
            }
            .category-card .cover-wrap {
                height: 150px;
            }
            .featured-card .featured-cover {
                height: 160px;
            }
            .cta-actions .btn {
                width: 100%;
                max-width: 300px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #4f46e5;
            --primary-dark: #4338ca;
            --primary-light: #eef2ff;
            --accent: #7c3aed;
            --dark: #0f172a;
            --text: #334155;
            --text-light: #64748b;
            --border: #e2e8f0;
            --bg-light: #f8fafc;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.08);
            --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.12);
            --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.16);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            color: var(--text);
            line-height: 1.75;
            background: #ffffff;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===== Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .logo-badge {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 15px;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 9px 16px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            color: #475569;
            transition: all 0.25s ease;
        }

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

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: #f1f5f9;
            border-radius: 999px;
            padding: 8px 16px;
            gap: 8px;
            border: 1px solid transparent;
            transition: all 0.25s ease;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

        .search-box i {
            color: #94a3b8;
            font-size: 14px;
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            width: 140px;
            color: var(--dark);
        }

        .search-box input::placeholder {
            color: #94a3b8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
            border: none;
            transition: all 0.25s ease;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
        }

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

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(79, 70, 229, 0.3);
            outline-offset: 2px;
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--border);
            color: var(--dark);
        }

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

        .btn-outline:focus-visible {
            outline: 3px solid rgba(79, 70, 229, 0.2);
            outline-offset: 2px;
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
            border-radius: 12px;
        }

        .btn-sm {
            padding: 6px 14px;
            font-size: 13px;
            border-radius: 8px;
        }

        /* Mobile menu button */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 20px;
            color: var(--dark);
            padding: 8px;
            border-radius: 8px;
        }

        .mobile-menu-btn:focus-visible {
            outline: 3px solid rgba(79, 70, 229, 0.3);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 160px 0 80px;
            background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.18;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.3), transparent 70%);
            border-radius: 50%;
        }

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

        .page-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 16px;
        }

        .page-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.2s;
        }

        .page-hero .breadcrumb a:hover {
            color: #fff;
        }

        .page-hero .breadcrumb i {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.4);
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
            line-height: 1.25;
            margin-bottom: 16px;
            max-width: 700px;
        }

        .page-hero h1 .highlight {
            background: linear-gradient(90deg, #a5b4fc, #c4b5fd);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

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

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
        }

        .hero-tag i {
            color: #a5b4fc;
            font-size: 12px;
        }

        /* ===== Sections ===== */
        .section {
            padding: 96px 0;
        }

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

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

        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

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

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.8px;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
        }

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

        .feature-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

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

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 20px;
            transition: all 0.3s ease;
        }

        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: 0 8px 20px rgba(79, 70, 229, 0.3);
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ===== Function Details ===== */
        .detail-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 64px;
        }

        .detail-block:last-child {
            margin-bottom: 0;
        }

        .detail-block:nth-child(even) {
            direction: rtl;
        }

        .detail-block>* {
            direction: ltr;
        }

        .detail-content .num-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 999px;
            padding: 4px 14px;
            margin-bottom: 14px;
        }

        .detail-content h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.5px;
            line-height: 1.35;
            margin-bottom: 14px;
        }

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

        .detail-list {
            list-style: none;
            padding: 0;
        }

        .detail-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--text);
        }

        .detail-list li i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 5px;
            flex-shrink: 0;
        }

        .detail-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .detail-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }

        .detail-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.4));
        }

        .detail-image .img-caption {
            position: absolute;
            bottom: 16px;
            left: 20px;
            right: 20px;
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            z-index: 2;
        }

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

        .step-item {
            position: relative;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 24px 28px;
            text-align: center;
            transition: all 0.3s ease;
        }

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

        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -16px;
            left: 50%;
            transform: translateX(-50%);
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 14px;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
        }

        .step-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin: 0 auto 16px;
        }

        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
        }

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

        .card-item {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }

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

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

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

        .card-item:hover .card-image img {
            transform: scale(1.06);
        }

        .card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.5));
        }

        .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            color: var(--dark);
            font-size: 12px;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 999px;
            z-index: 2;
        }

        .card-content {
            padding: 24px;
        }

        .card-content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .card-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 16px;
            border-top: 1px solid #f1f5f9;
        }

        .card-meta .tag {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
        }

        .card-meta a {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }

        .card-meta a:hover {
            color: var(--primary-dark);
        }

        /* ===== FAQ ===== */
        .faq-container {
            max-width: 780px;
            margin: 0 auto;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
            transition: color 0.2s;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

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

        .faq-question i {
            color: var(--primary);
            font-size: 14px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, #1e1b4b, #312e81, #4338ca);
            padding: 80px 0;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.1;
        }

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

        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.8px;
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 32px;
            line-height: 1.8;
        }

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

        .btn-white {
            background: #fff;
            color: var(--primary-dark);
            padding: 14px 32px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
            transition: all 0.25s ease;
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }

        .btn-white:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.4);
            outline-offset: 2px;
        }

        .btn-ghost {
            background: transparent;
            color: #fff;
            padding: 14px 32px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 700;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            transition: all 0.25s ease;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.7);
        }

        .btn-ghost:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.3);
            outline-offset: 2px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 64px 0 32px;
        }

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

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

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #64748b;
            max-width: 360px;
            margin-top: 16px;
        }

        .site-footer .footer-col h4 {
            color: #e2e8f0;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .site-footer .footer-links a {
            color: #94a3b8;
            font-size: 14px;
            transition: all 0.2s;
        }

        .site-footer .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 32px;
            text-align: center;
            font-size: 13px;
            color: #64748b;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }

            .nav-links a {
                padding: 8px 12px;
                font-size: 13px;
            }

            .search-box {
                display: none;
            }

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

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

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

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

            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
            }

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

            .nav-links a {
                display: block;
                width: 100%;
                text-align: left;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 10px;
            }

            .mobile-menu-btn {
                display: block;
            }

            .nav-actions .btn-outline {
                display: none;
            }

            .nav-actions .btn-primary {
                padding: 8px 16px;
                font-size: 13px;
            }

            .page-hero {
                padding: 120px 0 60px;
            }

            .page-hero h1 {
                font-size: 32px;
            }

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

            .section {
                padding: 64px 0;
            }

            .section-head h2 {
                font-size: 28px;
            }

            .detail-block,
            .detail-block:nth-child(even) {
                grid-template-columns: 1fr;
                gap: 32px;
                direction: ltr;
            }

            .detail-image img {
                min-height: 240px;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 20px;
            }

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

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

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

            .page-hero h1 {
                font-size: 28px;
            }

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

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

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-actions .btn-white,
            .cta-actions .btn-ghost {
                width: 100%;
                text-align: center;
            }

            .detail-content h3 {
                font-size: 22px;
            }
        }

/* roulang page: category2 */
:root {
            --brand: #2a3fd8;
            --brand-dark: #172073;
            --brand-light: #5a7dff;
            --accent: #f59e0b;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --bg-body: #f8fafc;
            --bg-surface: #ffffff;
            --border-subtle: #e2e8f0;
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
            --radius-xl: 2rem;
            --shadow-card: 0 4px 24px rgba(23, 32, 115, 0.06);
            --shadow-hover: 0 16px 40px rgba(23, 32, 115, 0.12);
            --space-section: 5rem;
        }

        /* ===== 基础 reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'sans-serif';
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        button,
        input {
            font-family: inherit;
            font-size: 100%;
            border: none;
            outline: none;
            background: none;
        }

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

        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 1.5rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--brand-dark);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-badge {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand), var(--brand-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 4px 12px rgba(42, 63, 216, 0.3);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
        }

        .nav-links a {
            display: block;
            padding: 0.55rem 1rem;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.2s ease;
        }

        .nav-links a:hover {
            color: var(--brand);
            background: rgba(42, 63, 216, 0.06);
        }

        .nav-links a.active {
            color: var(--brand);
            background: rgba(42, 63, 216, 0.1);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: #f1f5f9;
            border-radius: 999px;
            padding: 0.35rem 0.6rem 0.35rem 0.9rem;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            width: 210px;
        }

        .header-search:focus-within {
            border-color: rgba(42, 63, 216, 0.4);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(42, 63, 216, 0.08);
        }

        .header-search input {
            flex: 1;
            font-size: 0.85rem;
            color: var(--text-main);
            background: transparent;
        }

        .header-search input::placeholder {
            color: #94a3b8;
        }

        .header-search i {
            color: #94a3b8;
            font-size: 0.85rem;
            padding: 0.25rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.6rem 1.4rem;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            background: var(--brand);
            color: #fff;
            border: 1px solid transparent;
        }

        .btn:hover {
            background: var(--brand-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(42, 63, 216, 0.3);
        }

        .btn:active {
            transform: translateY(0);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(42, 63, 216, 0.4);
        }

        .btn-ghost {
            background: transparent;
            color: var(--brand);
            border-color: rgba(42, 63, 216, 0.3);
        }

        .btn-ghost:hover {
            background: rgba(42, 63, 216, 0.06);
            box-shadow: none;
            border-color: var(--brand);
        }

        .btn-accent {
            background: var(--accent);
            color: #1e293b;
        }

        .btn-accent:hover {
            background: #e8890c;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.3);
        }

        .btn-sm {
            padding: 0.45rem 1rem;
            font-size: 0.85rem;
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: #f1f5f9;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        .mobile-toggle i {
            font-size: 1.1rem;
            color: var(--text-main);
        }

        /* ===== Hero 区 ===== */
        .hero {
            background: linear-gradient(135deg, rgba(23, 32, 115, 0.92), rgba(42, 63, 216, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 6.5rem 0 5rem;
            color: #fff;
            position: relative;
        }

        .hero .hero-inner {
            max-width: 840px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 0.35rem 1rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #fff;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(6px);
        }

        .hero h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.25rem;
            letter-spacing: -0.02em;
        }

        .hero p {
            font-size: 1.1rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 2rem;
            max-width: 660px;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .hero-actions .btn {
            background: #fff;
            color: var(--brand-dark);
        }

        .hero-actions .btn:hover {
            background: #f1f5f9;
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
        }

        .hero-actions .btn-ghost {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }

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

        /* ===== 统计条 ===== */
        .stats-section {
            background: var(--bg-surface);
            border-bottom: 1px solid var(--border-subtle);
            padding: 2.5rem 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stat-item {
            text-align: center;
            padding: 1rem;
        }

        .stat-item strong {
            display: block;
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--brand);
            line-height: 1.2;
        }

        .stat-item span {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.35rem;
            display: block;
        }

        /* ===== 板块标题 ===== */
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 3.5rem;
        }

        .section-head .badge-line {
            display: inline-block;
            background: rgba(42, 63, 216, 0.08);
            color: var(--brand);
            padding: 0.3rem 1rem;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0.75rem;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
        }

        /* ===== 卡片网格 ===== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }

        .media-card {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }

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

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

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

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

        .media-card .card-img::after {
            content: ''; 
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.25), transparent 60%);
        }

        .media-card .card-badge {
            position: absolute;
            top: 0.9rem;
            left: 0.9rem;
            z-index: 2;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(4px);
            color: var(--brand-dark);
            padding: 0.25rem 0.8rem;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .media-card .card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .media-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }

        .media-card .card-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 1rem;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            color: var(--brand);
            font-weight: 600;
            font-size: 0.9rem;
            transition: gap 0.2s ease;
        }

        .card-link:hover {
            gap: 0.7rem;
        }

        /* ===== 图文区块 ===== */
        .split-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 3.5rem;
            align-items: center;
        }

        .split-img {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .split-img img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .split-img .img-caption {
            position: absolute;
            bottom: 1.2rem;
            left: 1.2rem;
            right: 1.2rem;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            padding: 0.8rem 1.2rem;
            border-radius: var(--radius-md);
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: center;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }

        .guide-list {
            list-style: none;
        }

        .guide-list li {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--border-subtle);
            transition: background 0.2s ease;
        }

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

        .guide-list .num {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(42, 63, 216, 0.08);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1rem;
        }

        .guide-list .guide-content {
            flex: 1;
        }

        .guide-list .guide-content h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
        }

        .guide-list .guide-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0.4rem;
        }

        .guide-list .guide-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.8rem;
            color: var(--brand);
            cursor: pointer;
        }

        /* ===== 步骤区 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .step-card {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            padding: 1.8rem 1.5rem;
            text-align: center;
            transition: all 0.3s ease;
            position: relative;
        }

        .step-card:hover {
            border-color: rgba(42, 63, 216, 0.4);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }

        .step-icon {
            width: 60px;
            height: 60px;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--brand), var(--brand-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin: 0 auto 1.2rem;
            box-shadow: 0 6px 16px rgba(42, 63, 216, 0.25);
        }

        .step-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .step-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .step-num {
            position: absolute;
            top: 0.9rem;
            right: 1rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #cbd5e1;
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            justify-content: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .tag-item {
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            font-size: 0.9rem;
            color: var(--text-main);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .tag-item:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: rgba(42, 63, 216, 0.05);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

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

        .faq-item {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: box-shadow 0.2s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }

        .faq-item summary {
            padding: 1.4rem 1.6rem;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
            user-select: none;
        }

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

        .faq-item summary i {
            color: var(--brand);
            transition: transform 0.3s ease;
            font-size: 0.9rem;
        }

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

        .faq-item .faq-body {
            padding: 0 1.6rem 1.4rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        /* ===== CTA 区 ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-dark), var(--brand));
            padding: 4.5rem 0;
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 2rem;
            font-size: 1rem;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-section .btn {
            background: #fff;
            color: var(--brand-dark);
        }

        .cta-section .btn:hover {
            background: #f1f5f9;
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
        }

        .cta-section .btn-ghost {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }

        .cta-section .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            box-shadow: none;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 3.5rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 0.8rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
            margin-top: 0.5rem;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: #94a3b8;
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.5rem 0;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --space-section: 4rem;
            }

            .header-search {
                width: 160px;
            }

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

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

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

            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 1rem;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 99;
                border-bottom: 1px solid var(--border-subtle);
            }

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

            .nav-links a {
                padding: 0.75rem 1rem;
                border-radius: 0.5rem;
                font-size: 1rem;
            }

            .mobile-toggle {
                display: flex;
            }

            .header-search {
                width: 48px;
                padding: 0.4rem;
                justify-content: center;
            }

            .header-search input {
                display: none;
            }

            .header-search i {
                margin: 0;
            }

            .hero {
                padding: 4rem 0 3.5rem;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero p {
                font-size: 1rem;
            }

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

            .stat-item strong {
                font-size: 1.8rem;
            }

            .split-layout {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .split-img img {
                height: 280px;
            }

            .section-head h2 {
                font-size: 1.6rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }

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

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

            .hero h1 {
                font-size: 1.7rem;
            }

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

            .hero-actions .btn {
                text-align: center;
            }

            .section-head h2 {
                font-size: 1.35rem;
            }

            .guide-list li {
                gap: 0.9rem;
            }

            .guide-list .num {
                width: 36px;
                height: 36px;
                font-size: 0.85rem;
            }

            .cta-section {
                padding: 3rem 0;
            }

            .cta-section h2 {
                font-size: 1.4rem;
            }

            .footer-grid {
                gap: 1.5rem;
            }

            .btn {
                padding: 0.55rem 1.1rem;
            }
        }

/* roulang page: article */
:root {
            --brand: #1e3a5f;
            --brand-dark: #142a47;
            --brand-light: #3b5f7f;
            --accent: #d4a85c;
            --accent-dark: #b8893f;
            --bg-main: #f6f5f2;
            --bg-deep: #0f1b2d;
            --text-main: #1f2933;
            --text-muted: #6b7280;
            --border-main: #e5e7eb;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --shadow-sm: 0 1px 3px rgba(15, 27, 45, 0.06);
            --shadow-md: 0 4px 16px rgba(15, 27, 45, 0.08);
            --shadow-lg: 0 12px 40px rgba(15, 27, 45, 0.12);
            --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            background: var(--bg-main);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input,
        textarea {
            font-family: inherit;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-main);
            box-shadow: 0 1px 8px rgba(15, 27, 45, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--brand);
            white-space: nowrap;
        }
        .logo-badge {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand), var(--brand-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-links a:hover {
            background: rgba(30, 58, 95, 0.06);
            color: var(--brand);
        }
        .nav-links a.active {
            background: var(--brand);
            color: #fff;
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: #f1f3f5;
            border-radius: 999px;
            padding: 4px 6px 4px 16px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }
        .search-box:focus-within {
            border-color: var(--accent);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(212, 168, 92, 0.15);
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            width: 140px;
            color: var(--text-main);
        }
        .search-box button {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: none;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: background 0.2s;
        }
        .search-box button:hover {
            background: var(--brand-dark);
        }
        .btn-header {
            padding: 8px 18px;
            border-radius: 999px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            transition: all 0.2s;
        }
        .btn-header:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-main);
            background: #fff;
            color: var(--brand);
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }

        .article-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 80px 0 64px;
            color: #fff;
        }
        .article-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 27, 45, 0.88), rgba(30, 58, 95, 0.72), rgba(15, 27, 45, 0.42));
        }
        .article-hero-content {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            margin-bottom: 16px;
            color: rgba(255, 255, 255, 0.8);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .breadcrumb-sep {
            color: rgba(255, 255, 255, 0.5);
        }
        .article-hero h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            max-width: 800px;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }
        .article-hero-abstract {
            font-size: 16px;
            line-height: 1.8;
            max-width: 640px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
        }
        .article-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .meta-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 13px;
            backdrop-filter: blur(4px);
        }

        .article-body-section {
            padding: 56px 0 64px;
        }
        .article-body-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 40px;
            align-items: start;
        }
        .article-main-col {
            min-width: 0;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-main);
            box-shadow: var(--shadow-md);
            padding: 40px;
        }
        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: #333;
        }
        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--brand);
            margin: 36px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--brand);
            margin: 28px 0 12px;
        }
        .article-content p {
            margin-bottom: 18px;
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 20px 24px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content a {
            color: var(--brand);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover {
            color: var(--accent-dark);
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(212, 168, 92, 0.08);
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--text-muted);
        }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-main);
        }
        .tag-label {
            font-weight: 600;
            font-size: 14px;
            color: var(--text-muted);
        }
        .tag-item {
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(30, 58, 95, 0.08);
            color: var(--brand);
            font-size: 13px;
            font-weight: 500;
            transition: all 0.2s;
        }
        .tag-item:hover {
            background: var(--brand);
            color: #fff;
        }

        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-icon {
            font-size: 52px;
            color: var(--accent);
            display: block;
            margin-bottom: 16px;
        }
        .not-found-box h2 {
            font-size: 26px;
            color: var(--brand);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            transition: all 0.2s ease;
        }
        .btn-primary {
            background: var(--brand);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .article-side-col {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-main);
            box-shadow: var(--shadow-sm);
            padding: 24px;
        }
        .side-card-title {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
            font-weight: 700;
            color: var(--brand);
            margin-bottom: 18px;
        }
        .side-card-title i {
            color: var(--accent);
        }
        .side-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .side-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            background: #f8f9fa;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            transition: all 0.2s;
        }
        .side-links a:hover {
            background: rgba(30, 58, 95, 0.08);
            color: var(--brand);
            transform: translateX(4px);
        }
        .side-link-icon {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
        }
        .side-links a .fa-chevron-right {
            margin-left: auto;
            font-size: 12px;
            color: var(--text-muted);
        }
        .side-featured {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .side-featured-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-main);
            transition: all 0.2s;
        }
        .side-featured-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .side-featured-item img {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .side-featured-item span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.5;
        }
        .side-tip-card {
            background: linear-gradient(135deg, #fdf6ea, #faf3e3);
            border-color: rgba(212, 168, 92, 0.3);
        }
        .side-tip-card p {
            font-size: 14px;
            color: #6b5b3e;
            line-height: 1.7;
        }

        .related-section {
            background: #fff;
            padding: 64px 0;
            border-top: 1px solid var(--border-main);
        }
        .section-heading {
            text-align: center;
            max-width: 560px;
            margin: 0 auto 40px;
        }
        .section-tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 999px;
            background: rgba(212, 168, 92, 0.15);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .section-heading h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--brand);
            margin-bottom: 12px;
        }
        .section-heading p {
            color: var(--text-muted);
            font-size: 15px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-main);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            display: block;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(30, 58, 95, 0.15);
        }
        .related-img {
            overflow: hidden;
            height: 180px;
        }
        .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .related-img img {
            transform: scale(1.05);
        }
        .related-body {
            padding: 24px;
        }
        .related-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(212, 168, 92, 0.12);
            color: var(--accent-dark);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .related-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand);
            margin-bottom: 8px;
        }
        .related-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .related-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-more i {
            transition: transform 0.2s;
        }
        .related-card:hover .related-more i {
            transform: translateX(4px);
        }

        .cta-section {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            text-align: center;
            color: #fff;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 27, 45, 0.85), rgba(30, 58, 95, 0.65));
        }
        .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-content h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-light {
            background: #fff;
            color: var(--brand);
        }
        .btn-light:hover {
            background: #f0f0f0;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.8);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }

        .faq-section {
            padding: 64px 0;
        }
        .faq-grid {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-main);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow 0.2s;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            background: #fff;
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--brand);
            text-align: left;
            transition: background 0.2s;
        }
        .faq-question:hover {
            background: rgba(30, 58, 95, 0.03);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(212, 168, 92, 0.12);
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform 0.3s;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px dashed var(--border-main);
            padding-top: 16px;
            margin-top: 2px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.2s, padding-left 0.2s;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 12px 20px;
                border-bottom: 1px solid var(--border-main);
                box-shadow: var(--shadow-md);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                border-radius: 10px;
                text-align: left;
            }
            .header-actions .search-box {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .article-body-grid {
                grid-template-columns: 1fr;
            }
            .article-side-col {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                align-items: start;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.4fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .logo {
                font-size: 17px;
            }
            .article-hero {
                padding: 56px 0 48px;
            }
            .article-hero h1 {
                font-size: 28px;
            }
            .article-card {
                padding: 24px;
            }
            .article-side-col {
                display: flex;
                flex-direction: column;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-content h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .btn-header {
                display: none;
            }
            .header-actions {
                gap: 8px;
            }
            .article-hero-meta {
                flex-direction: column;
            }
            .article-body-section {
                padding: 32px 0 40px;
            }
            .article-card {
                padding: 20px;
            }
            .section-heading h2 {
                font-size: 24px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .cta-section {
                padding: 56px 0;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #4f46e5;
            --primary-hover: #4338ca;
            --primary-soft: #eef2ff;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --bg: #f6f7fb;
            --text: #0f172a;
            --text-light: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --white: #ffffff;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 4px 24px rgba(79, 70, 229, 0.08);
            --shadow-hover: 0 12px 36px rgba(79, 70, 229, 0.15);
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

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

        button,
        input {
            font: inherit;
            border: none;
            background: none;
            outline: none;
        }

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

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 2px 20px rgba(15, 23, 42, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            height: 72px;
        }

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

        .logo-badge {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #4f46e5, #7c3aed);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text);
        }

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-light);
            transition: all 0.25s ease;
            line-height: 1.4;
        }

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

        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-box input {
            width: 180px;
            height: 36px;
            padding: 0 38px 0 14px;
            border-radius: 999px;
            background: var(--bg);
            border: 1px solid transparent;
            font-size: 13.5px;
            color: var(--text);
            transition: all 0.25s ease;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-box input:focus {
            width: 200px;
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

        .search-box i {
            position: absolute;
            right: 14px;
            font-size: 14px;
            color: var(--text-muted);
            pointer-events: none;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            cursor: pointer;
            transition: all 0.25s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn i {
            font-size: 12px;
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 15px;
        }

        .btn-block {
            width: 100%;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
            backdrop-filter: blur(4px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.22);
            border-color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: rgba(79, 70, 229, 0.35);
        }

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

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
        }

        .btn-light:hover {
            background: #f1f5f9;
            transform: translateY(-2px);
        }

        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        .mobile-menu {
            display: none;
            border-top: 1px solid var(--border);
            background: #fff;
            padding: 16px 24px 20px;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav a {
            padding: 12px 14px;
            border-radius: 10px;
            color: var(--text-light);
            font-size: 15px;
            font-weight: 500;
        }

        .mobile-nav a.active {
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-actions {
            margin-top: 14px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .page-hero {
            position: relative;
            background-position: center center;
            background-size: cover;
            background-repeat: no-repeat;
            padding: 120px 0 110px;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15, 23, 42, 0.82) 0%, rgba(30, 27, 75, 0.7) 50%, rgba(79, 70, 229, 0.45) 100%);
        }

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

        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            margin-bottom: 24px;
        }

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

        .breadcrumb-wrap a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .breadcrumb-sep {
            color: rgba(255, 255, 255, 0.5);
        }

        .breadcrumb-current {
            color: #fff;
            font-weight: 500;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.2);
            border: 1px solid rgba(245, 158, 11, 0.4);
            color: #fcd34d;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 22px;
        }

        .page-hero h1 {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

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

        .section {
            padding: 90px 0;
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 52px;
        }

        .section-head-row {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            max-width: none;
            text-align: left;
            gap: 20px;
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .section-head h2 {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text);
            margin-bottom: 10px;
        }

        .section-head p {
            font-size: 15.5px;
            color: var(--text-light);
            line-height: 1.7;
        }

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

        .section-head.light p {
            color: rgba(255, 255, 255, 0.75);
        }

        .section-head.light .section-tag {
            background: rgba(255, 255, 255, 0.15);
            color: #e0e7ff;
        }

        .card {
            background: #fff;
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.35s ease;
            height: 100%;
        }

        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(79, 70, 229, 0.25);
        }

        .card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--border);
        }

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

        .card:hover .card-img img {
            transform: scale(1.04);
        }

        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 23, 42, 0.75);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }

        .card-body {
            padding: 24px;
        }

        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
            line-height: 1.4;
        }

        .card-body p {
            font-size: 14.5px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .news-section {
            background: #fff;
            border-block: 1px solid var(--border);
        }

        .news-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 24px 20px;
            border-radius: 14px;
            transition: background 0.25s ease, box-shadow 0.25s ease;
            border: 1px solid transparent;
        }

        .news-item:hover {
            background: var(--bg);
            box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
        }

        .news-tag {
            flex-shrink: 0;
            font-size: 12.5px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            margin-top: 2px;
        }

        .tag-primary {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .tag-warm {
            background: #fef3c7;
            color: #b45309;
        }

        .tag-green {
            background: #dcfce7;
            color: #166534;
        }

        .tag-blue {
            background: #dbeafe;
            color: #1e40af;
        }

        .tag-purple {
            background: #ede9fe;
            color: #6d28d9;
        }

        .news-body {
            flex: 1;
        }

        .news-body h3 {
            font-size: 16.5px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 4px;
        }

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

        .news-date {
            flex-shrink: 0;
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
            padding-top: 4px;
        }

        .stats-section {
            position: relative;
            background-position: center;
            background-size: cover;
            background-repeat: no-repeat;
            padding: 90px 0;
        }

        .stats-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(49, 46, 129, 0.85));
        }

        .stats-content {
            position: relative;
            z-index: 1;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .stat-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 36px 20px;
            backdrop-filter: blur(8px);
            transition: all 0.3s ease;
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }

        .stat-item i {
            font-size: 26px;
            color: #fcd34d;
            margin-bottom: 14px;
            display: block;
        }

        .stat-number {
            display: block;
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
        }

        .steps-section {
            background: linear-gradient(180deg, #f6f7fb 0%, #eef2ff 100%);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .step-item {
            position: relative;
            background: #fff;
            border-radius: var(--radius);
            padding: 40px 28px 32px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.7);
            transition: all 0.3s ease;
        }

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

        .step-item i {
            font-size: 32px;
            color: var(--primary);
            margin-bottom: 16px;
            display: block;
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        .step-num {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 32px;
            font-weight: 800;
            color: var(--border);
            font-family: 'SF Mono', 'Cascadia Code', monospace;
            line-height: 1;
        }

        .faq-section {
            background: #fff;
        }

        .faq-container {
            max-width: 820px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 0;
            transition: all 0.3s ease;
        }

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

        .faq-item[open] {
            background: #fff;
            box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
        }

        .faq-item summary {
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            user-select: none;
        }

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

        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item p {
            padding: 0 24px 22px;
            font-size: 14.5px;
            color: var(--text-light);
            line-height: 1.8;
        }

        .cta-section {
            padding: 70px 0 90px;
        }

        .cta-box {
            background: linear-gradient(135deg, #4f46e5, #7c3aed);
            border-radius: 24px;
            padding: 56px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            box-shadow: 0 16px 48px rgba(79, 70, 229, 0.3);
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .cta-content p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
        }

        .cta-box .btn {
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }

        .site-footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.75);
            padding-top: 64px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 44px;
        }

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

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

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

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
        }

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

        @media (max-width: 1024px) {
            .container {
                padding-inline: 20px;
            }

            .nav-links {
                display: none;
            }

            .header-actions {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .page-hero h1 {
                font-size: 40px;
            }

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

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

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

            .section-head h2 {
                font-size: 27px;
            }

            .page-hero {
                padding: 90px 0 80px;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .page-hero p {
                font-size: 15.5px;
            }

            .section-head-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
            }

            .cta-box {
                flex-direction: column;
                text-align: center;
                padding: 40px 28px;
            }

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

        @media (max-width: 520px) {
            .header-inner {
                height: 64px;
            }

            .logo-text {
                font-size: 16px;
            }

            .logo-badge {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }

            .page-hero {
                padding: 70px 0 64px;
            }

            .page-hero h1 {
                font-size: 28px;
            }

            .page-hero p {
                font-size: 14.5px;
            }

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

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

            .news-item {
                flex-direction: column;
                gap: 10px;
                padding: 18px 14px;
            }

            .news-date {
                padding-top: 0;
            }

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

            .stat-item {
                padding: 24px 12px;
            }

            .stat-number {
                font-size: 24px;
            }

            .cta-box {
                padding: 32px 20px;
            }

            .cta-content h2 {
                font-size: 22px;
            }
        }