/* roulang page: index */
:root {
            --primary: #0f2b46;
            --primary-light: #1a3a5c;
            --accent: #0ea5e9;
            --accent-hover: #0284c7;
            --brandgreen: #10b981;
            --text: #1e293b;
            --text-light: #64748b;
            --bg: #f8fafc;
            --white: #ffffff;
            --border: #e2e8f0;
            --radius: 16px;
            --shadow-sm: 0 1px 3px rgba(15, 43, 70, 0.06);
            --shadow-md: 0 4px 20px rgba(15, 43, 70, 0.08);
            --shadow-lg: 0 12px 40px rgba(15, 43, 70, 0.14);
            --header-h: 76px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.65;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding: 88px 0;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-head .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .12em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(14, 165, 233, 0.10);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--primary);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
        }
        .brand-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent) 0%, #6366f1 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 999px;
            transition: all .25s ease;
            position: relative;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(15, 43, 70, 0.05);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(14, 165, 233, 0.08);
            font-weight: 600;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 999px;
            transition: all .28s ease;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(14, 165, 233, 0.35);
        }
        .btn-outline {
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
            background: transparent;
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-2px);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
        }
        .btn-white:hover {
            background: #f1f5f9;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }
        .btn:focus-visible {
            outline: 3px solid rgba(14, 165, 233, 0.4);
            outline-offset: 2px;
        }
        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--bg);
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            transition: background .2s;
        }
        .menu-toggle:hover {
            background: #e9eef3;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 640px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            background-color: var(--primary);
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 43, 70, 0.92) 0%, rgba(15, 43, 70, 0.72) 50%, rgba(14, 165, 233, 0.45) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            padding: 80px 24px;
            color: #fff;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(8px);
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 24px;
            letter-spacing: .02em;
        }
        .hero-content h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }
        .hero-content p {
            font-size: 18px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 36px;
            max-width: 540px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            margin-top: 52px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }
        .hero-stat-item {
            text-align: left;
        }
        .hero-stat-item .num {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            display: block;
            line-height: 1.2;
        }
        .hero-stat-item .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* ===== Cards ===== */
        .card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all .3s ease;
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .feature-card {
            padding: 36px 32px;
        }
        .feature-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
            background: rgba(14, 165, 233, 0.10);
            color: var(--accent);
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== Category Entry ===== */
        .category-entry {
            background: linear-gradient(135deg, #f0f9ff 0%, #f8fafc 100%);
            position: relative;
        }
        .cat-card {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all .35s ease;
            height: 100%;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
        }
        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 18px 48px rgba(15, 43, 70, 0.18);
        }
        .cat-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .cat-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(15, 43, 70, 0.85) 100%);
            z-index: 1;
        }
        .cat-card .cat-body {
            position: relative;
            z-index: 2;
            padding: 32px;
            color: #fff;
            width: 100%;
        }
        .cat-card .cat-body h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .cat-card .cat-body p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: rgba(255, 255, 255, 0.18);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 8px 20px;
            border-radius: 999px;
            transition: all .25s;
        }
        .cat-link:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateX(2px);
        }

        /* ===== Post Cards ===== */
        .post-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }
        .post-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .post-card .thumb {
            height: 190px;
            overflow: hidden;
            position: relative;
        }
        .post-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .post-card:hover .thumb img {
            transform: scale(1.05);
        }
        .post-card .post-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(14, 165, 233, 0.10);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
            width: fit-content;
        }
        .post-card h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--primary);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card .post-excerpt {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .post-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #94a3b8;
            border-top: 1px solid #f1f5f9;
            padding-top: 14px;
        }
        .post-meta i {
            font-size: 12px;
        }

        /* ===== Stats ===== */
        .stats-section {
            position: relative;
            background-size: cover;
            background-position: center;
            background-color: var(--primary);
            overflow: hidden;
        }
        .stats-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 43, 70, 0.94) 0%, rgba(26, 58, 92, 0.86) 100%);
        }
        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }
        .stat-item .stat-num {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            letter-spacing: -0.02em;
        }
        .stat-item .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
        }
        .stat-item .stat-icon {
            font-size: 26px;
            color: var(--accent);
            margin-bottom: 12px;
        }

        /* ===== Process ===== */
        .process-step {
            text-align: center;
            padding: 32px 20px;
            position: relative;
        }
        .step-number {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #6366f1);
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 8px 24px rgba(14, 165, 233, 0.25);
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-light);
        }
        .process-arrow {
            position: absolute;
            top: 50%;
            right: -20px;
            transform: translateY(-50%);
            color: #cbd5e1;
            font-size: 20px;
            z-index: 2;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 16px;
            background: var(--white);
            overflow: hidden;
            transition: box-shadow .25s;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item.open {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            gap: 20px;
        }
        .faq-question .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(14, 165, 233, 0.10);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: transform .3s;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            padding: 0 28px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 22px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            border-top: 1px solid #f1f5f9;
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            border-radius: 28px;
            overflow: hidden;
            background: linear-gradient(135deg, var(--primary) 0%, #1e3a5f 100%);
            padding: 64px 56px;
            text-align: center;
            box-shadow: 0 20px 60px rgba(15, 43, 70, 0.25);
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 30px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .footer-brand .brand-logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .brand-logo .logo-icon {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: .06em;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            transition: color .2s;
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 26px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Mobile Responsive ===== */
        @media (max-width: 1024px) {
            .section-pad {
                padding: 68px 0;
            }
            .hero-content h1 {
                font-size: 42px;
            }
            .stats-grid {
                gap: 24px;
            }
            .stat-item .stat-num {
                font-size: 34px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .brand-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .main-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 20px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                display: none;
                z-index: 99;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 18px;
                border-radius: 12px;
                font-size: 16px;
                justify-content: flex-start;
            }
            .menu-toggle {
                display: flex;
            }
            .header-cta .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .hero {
                min-height: auto;
            }
            .hero-content {
                padding: 60px 24px 48px;
            }
            .hero-content h1 {
                font-size: 34px;
            }
            .hero-content p {
                font-size: 16px;
            }
            .hero-stats {
                gap: 20px;
                margin-top: 36px;
                padding-top: 20px;
            }
            .hero-stat-item .num {
                font-size: 24px;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .process-arrow {
                display: none;
            }
            .cta-section {
                padding: 44px 24px;
                border-radius: 20px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-pad {
                padding: 52px 0;
            }
            .section-head {
                margin-bottom: 40px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px 16px;
            }
            .stat-item .stat-num {
                font-size: 28px;
            }
            .cta-section {
                padding: 36px 18px;
            }
            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 20px;
            }
            .faq-item.open .faq-answer {
                padding-bottom: 18px;
            }
        }

        /* ===== Utility ===== */
        .text-gradient {
            background: linear-gradient(120deg, #7dd3fc, #a5b4fc);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .bg-soft {
            background: var(--bg);
        }
        .mb-4 {
            margin-bottom: 16px;
        }

/* roulang page: category1 */
:root {
            --brand-primary: #1e40af;
            --brand-primary-light: #3b82f6;
            --brand-accent: #f59e0b;
            --brand-dark: #0f172a;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --bg-body: #f8fafc;
            --border-color: #e2e8f0;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 10px rgba(15, 23, 42, .06);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
            --shadow-lg: 0 20px 48px rgba(15, 23, 42, .12);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, .7);
            box-shadow: 0 1px 8px rgba(15, 23, 42, .04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--brand-dark);
            letter-spacing: .01em;
            white-space: nowrap;
        }
        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-light));
            color: #fff;
            border-radius: 10px;
            font-size: 1rem;
            box-shadow: 0 4px 14px rgba(30, 64, 175, .25);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: .4rem;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            padding: .55rem 1.05rem;
            border-radius: 999px;
            font-size: .95rem;
            font-weight: 500;
            color: #475569;
            transition: all .25s ease;
        }
        .nav-link i {
            font-size: .85rem;
            color: #94a3b8;
            transition: color .25s ease;
        }
        .nav-link:hover {
            background: #f1f5f9;
            color: var(--brand-primary);
        }
        .nav-link:hover i {
            color: var(--brand-primary);
        }
        .nav-link.active {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-light));
            color: #fff;
            box-shadow: 0 4px 16px rgba(30, 64, 175, .25);
        }
        .nav-link.active i {
            color: rgba(255, 255, 255, .9);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--brand-dark);
            background: #f1f5f9;
            transition: all .25s ease;
        }
        .nav-toggle:hover {
            background: #e2e8f0;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: inline-flex;
            }
            .main-nav {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                padding: .8rem 1.25rem 1.2rem;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 18px 32px rgba(15, 23, 42, .1);
                display: none;
                align-items: stretch;
                gap: .3rem;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                justify-content: flex-start;
                padding: .7rem 1rem;
                border-radius: 10px;
            }
        }

        /* ===== Hero Banner ===== */
        .cat-hero {
            position: relative;
            padding: 5.5rem 0 6rem;
            overflow: hidden;
            background-color: var(--brand-dark);
            color: #fff;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .45;
            transform: scale(1.02);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(138deg, rgba(15, 23, 42, .88) 0%, rgba(30, 64, 175, .72) 55%, rgba(30, 64, 175, .35) 100%);
        }
        .cat-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            padding: .35rem 1.1rem;
            border-radius: 999px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            color: #e0e7ff;
            font-size: .88rem;
            font-weight: 500;
            letter-spacing: .02em;
            backdrop-filter: blur(6px);
            margin-bottom: 1.5rem;
        }
        .cat-hero h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -.02em;
        }
        .cat-hero .hero-sub {
            max-width: 720px;
            margin: 0 auto 2rem;
            color: rgba(255, 255, 255, .85);
            font-size: 1.05rem;
            line-height: 1.8;
        }
        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: .8rem;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            padding: .8rem 1.6rem;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand-accent), #f97316);
            color: #fff;
            font-weight: 600;
            font-size: .95rem;
            box-shadow: 0 6px 20px rgba(245, 158, 11, .3);
            transition: all .3s ease;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(245, 158, 11, .4);
            color: #fff;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            padding: .8rem 1.6rem;
            border-radius: 999px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .25);
            color: #fff;
            font-weight: 600;
            font-size: .95rem;
            backdrop-filter: blur(6px);
            transition: all .3s ease;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, .2);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 分类标签 ===== */
        .cat-tabs-section {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 1.1rem 0;
            position: sticky;
            top: 72px;
            z-index: 60;
        }
        .cat-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: .5rem;
            justify-content: center;
        }
        .cat-tab {
            padding: .48rem 1.1rem;
            border-radius: 999px;
            font-size: .9rem;
            font-weight: 500;
            color: #475569;
            background: #f1f5f9;
            transition: all .25s ease;
            white-space: nowrap;
        }
        .cat-tab:hover {
            background: #e2e8f0;
            color: var(--brand-primary);
        }
        .cat-tab.active {
            background: var(--brand-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(30, 64, 175, .25);
        }
        @media (max-width: 768px) {
            .cat-tabs-section {
                top: 72px;
            }
            .cat-tabs {
                flex-wrap: nowrap;
                overflow-x: auto;
                justify-content: flex-start;
                padding-bottom: .3rem;
                -webkit-overflow-scrolling: touch;
            }
            .cat-tab {
                flex-shrink: 0;
            }
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 5rem 0;
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 3rem;
        }
        .section-tag {
            display: inline-block;
            padding: .3rem 1rem;
            border-radius: 999px;
            background: #eff6ff;
            color: var(--brand-primary);
            font-size: .82rem;
            font-weight: 600;
            letter-spacing: .03em;
            margin-bottom: .8rem;
        }
        .section-head h2 {
            font-size: clamp(1.7rem, 3.5vw, 2.3rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--brand-dark);
            margin-bottom: .8rem;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
        }

        /* ===== 功能卡片 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2rem 1.8rem;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: #bfdbfe;
        }
        .feature-card .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 54px;
            height: 54px;
            border-radius: 16px;
            background: linear-gradient(135deg, #eff6ff, #dbeafe);
            color: var(--brand-primary);
            font-size: 1.35rem;
            margin-bottom: 1.2rem;
            transition: all .3s ease;
        }
        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-light));
            color: #fff;
            box-shadow: 0 6px 20px rgba(30, 64, 175, .25);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--brand-dark);
            margin-bottom: .6rem;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: .92rem;
            line-height: 1.75;
            margin-bottom: 1.1rem;
        }
        .feature-link {
            font-size: .88rem;
            font-weight: 600;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: .35rem;
        }
        .feature-link i {
            font-size: .8rem;
            transition: transform .25s ease;
        }
        .feature-link:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 图文详情 ===== */
        .detail-section {
            padding: 5rem 0;
            background: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .detail-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3.5rem;
            align-items: center;
            margin-bottom: 4.5rem;
        }
        .detail-row:last-child {
            margin-bottom: 0;
        }
        .detail-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .detail-img img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .detail-img:hover img {
            transform: scale(1.03);
        }
        .detail-content h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--brand-dark);
            line-height: 1.4;
            margin-bottom: 1rem;
        }
        .detail-content p {
            color: var(--text-muted);
            font-size: .98rem;
            line-height: 1.85;
            margin-bottom: 1.4rem;
        }
        .detail-list {
            list-style: none;
            padding: 0;
        }
        .detail-list li {
            position: relative;
            padding: .45rem 0 .45rem 1.9rem;
            color: #334155;
            font-size: .95rem;
            line-height: 1.7;
        }
        .detail-list li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: .5rem;
            color: var(--brand-primary);
            font-size: .85rem;
            background: #eff6ff;
            border-radius: 50%;
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .detail-tag {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            padding: .28rem .8rem;
            border-radius: 999px;
            background: #f0fdf4;
            color: #16a34a;
            font-size: .78rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        @media (max-width: 900px) {
            .detail-row {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .detail-row.reverse .detail-img {
                order: 1;
            }
            .detail-row.reverse .detail-content {
                order: 2;
            }
            .detail-img img {
                height: 260px;
            }
        }

        /* ===== 流程 ===== */
        .process-section {
            padding: 5rem 0;
            background: var(--bg-body);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.6rem;
            max-width: 1080px;
            margin: 0 auto;
        }
        .process-item {
            position: relative;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem 1.8rem;
            text-align: center;
            border-top: 4px solid var(--brand-primary);
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
        }
        .process-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .process-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-light));
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 1.1rem;
            box-shadow: 0 6px 18px rgba(30, 64, 175, .25);
        }
        .process-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--brand-dark);
            margin-bottom: .6rem;
        }
        .process-item p {
            color: var(--text-muted);
            font-size: .88rem;
            line-height: 1.7;
        }
        .process-arrow {
            position: absolute;
            right: -1.1rem;
            top: 50%;
            transform: translateY(-50%);
            color: #cbd5e1;
            font-size: 1.1rem;
            z-index: 2;
        }
        @media (max-width: 1024px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
            .process-arrow {
                display: none;
            }
        }

        /* ===== 统计 ===== */
        .stats-section {
            position: relative;
            padding: 4.5rem 0;
            background-size: cover;
            background-position: center;
            background-color: var(--brand-dark);
            color: #fff;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, .92), rgba(30, 64, 175, .78));
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stats-head {
            text-align: center;
            margin-bottom: 3rem;
        }
        .stats-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: #fff;
        }
        .stats-head p {
            color: rgba(255, 255, 255, .8);
            margin-top: .5rem;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-item {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius-lg);
            padding: 2rem 1rem;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: all .3s ease;
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, .14);
            transform: translateY(-4px);
        }
        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stat-num span {
            font-size: 1.6rem;
        }
        .stat-label {
            color: rgba(255, 255, 255, .75);
            font-size: .9rem;
            margin-top: .5rem;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 5rem 0;
            background: #fff;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: .9rem;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: #fafbfc;
            overflow: hidden;
            transition: all .25s ease;
        }
        .faq-item.open {
            border-color: #bfdbfe;
            background: #fff;
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.1rem 1.4rem;
            font-weight: 600;
            font-size: .98rem;
            color: var(--brand-dark);
            cursor: pointer;
            user-select: none;
            transition: background .25s ease;
        }
        .faq-question:hover {
            background: #f1f5f9;
        }
        .faq-question .icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: #eff6ff;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .75rem;
            transition: all .3s ease;
            flex-shrink: 0;
            margin-left: .8rem;
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
            background: var(--brand-primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .3s ease;
            color: var(--text-muted);
            font-size: .93rem;
            line-height: 1.8;
            padding: 0 1.4rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.4rem 1.2rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 5rem 0;
            background: var(--bg-body);
        }
        .cta-box {
            max-width: 960px;
            margin: 0 auto;
            background: linear-gradient(135deg, var(--brand-primary), #1e3a8a);
            border-radius: 24px;
            padding: 3.2rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            color: #fff;
            box-shadow: 0 20px 50px rgba(15, 23, 42, .3);
        }
        .cta-box::before {
            content: '\f043';
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: -2rem;
            bottom: -2rem;
            font-size: 8rem;
            opacity: .08;
            transform: rotate(-12deg);
        }
        .cta-box h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: .8rem;
        }
        .cta-box p {
            color: rgba(255, 255, 255, .85);
            max-width: 600px;
            margin: 0 auto 1.8rem;
            line-height: 1.8;
        }
        .cta-box .btn-white {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            padding: .85rem 1.8rem;
            border-radius: 999px;
            background: #fff;
            color: var(--brand-primary);
            font-weight: 600;
            font-size: .95rem;
            transition: all .3s ease;
            box-shadow: 0 6px 20px rgba(255, 255, 255, .2);
        }
        .cta-box .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(255, 255, 255, .3);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 4rem 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
        }
        .footer-brand .brand-logo {
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-brand p {
            font-size: .9rem;
            line-height: 1.8;
            max-width: 360px;
            color: #94a3b8;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1.1rem;
            position: relative;
            padding-bottom: .5rem;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 2px;
            background: var(--brand-accent);
            border-radius: 2px;
        }
        .footer-col a {
            display: block;
            padding: .35rem 0;
            color: #94a3b8;
            font-size: .9rem;
            transition: all .25s ease;
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: .4rem;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 1.2rem 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: .5rem;
            font-size: .82rem;
            color: #64748b;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        /* ===== 图片过渡 ===== */
        .fade-item {
            transition: opacity .3s ease, transform .3s ease;
        }
        .fade-item.hidden {
            display: none;
        }

        /* ===== 可访问性 ===== */
        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .nav-toggle:focus-visible,
        .cat-tab:focus-visible {
            outline: 3px solid rgba(59, 130, 246, .5);
            outline-offset: 2px;
        }

/* roulang page: article */
:root {
    --primary: #0284c7;
    --primary-dark: #0369a1;
    --primary-light: #38bdf8;
    --accent: #14b8a6;
    --bg: #f0f9ff;
    --card: #ffffff;
    --text: #0f172a;
    --text-light: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 4px 24px rgba(2, 132, 199, .08);
    --shadow-lg: 0 12px 40px rgba(2, 132, 199, .12);
    --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: all .25s ease; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; outline: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.site-header { background: rgba(255,255,255,.95); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(2,132,199,.08); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand-logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--primary-dark); letter-spacing: .5px; }
.logo-icon { width: 38px; height: 38px; border-radius: 12px; background: linear-gradient(135deg, #0284c7, #14b8a6); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; box-shadow: 0 4px 12px rgba(2,132,199,.25); }
.main-nav { display: flex; align-items: center; gap: 8px; }
.nav-link { display: inline-flex; align-items: center; gap: 6px; padding: 9px 18px; border-radius: 999px; font-size: 14px; font-weight: 500; color: var(--text-light); transition: all .25s ease; }
.nav-link i { font-size: 13px; opacity: .8; }
.nav-link:hover { color: var(--primary); background: rgba(2,132,199,.06); }
.nav-link.active { background: linear-gradient(135deg, #0284c7, #0ea5e9); color: #fff; box-shadow: 0 4px 14px rgba(2,132,199,.3); }
.nav-link.active i { opacity: 1; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; align-items: center; justify-content: center; font-size: 18px; color: var(--text); background: #f1f5f9; }
.article-hero { position: relative; background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; padding: 100px 0 80px; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(2,132,199,.9), rgba(2,132,199,.65), rgba(20,184,166,.55)); }
.hero-content { position: relative; z-index: 2; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,.85); margin-bottom: 16px; flex-wrap: wrap; }
.breadcrumb a { color: rgba(255,255,255,.85); transition: color .2s; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: .5; }
.badge { display: inline-block; padding: 5px 14px; border-radius: 999px; background: rgba(255,255,255,.2); backdrop-filter: blur(4px); color: #fff; font-size: 13px; font-weight: 500; border: 1px solid rgba(255,255,255,.25); margin-bottom: 16px; }
.article-hero h1 { color: #fff; font-size: clamp(28px, 4vw, 44px); font-weight: 700; line-height: 1.3; margin-bottom: 16px; max-width: 820px; text-shadow: 0 2px 8px rgba(0,0,0,.1); }
.hero-meta { display: flex; align-items: center; gap: 20px; color: rgba(255,255,255,.9); font-size: 14px; flex-wrap: wrap; }
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta i { opacity: .8; }
.article-layout { display: grid; grid-template-columns: 1fr 360px; gap: 40px; padding: 60px 0; align-items: start; }
.article-main { min-width: 0; }
.article-body { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 40px 44px; }
.article-body .lead { font-size: 17px; color: var(--text-light); border-left: 4px solid var(--primary-light); padding: 12px 16px; background: rgba(2,132,199,.05); border-radius: 0 10px 10px 0; margin-bottom: 28px; line-height: 1.8; }
.article-body p { margin-bottom: 20px; line-height: 1.9; font-size: 15.5px; color: #334155; }
.article-body h2 { font-size: 22px; font-weight: 700; color: var(--text); margin: 36px 0 14px; padding-bottom: 10px; border-bottom: 2px solid rgba(2,132,199,.12); }
.article-body h3 { font-size: 18px; font-weight: 600; color: var(--text); margin: 24px 0 10px; }
.article-body ul, .article-body ol { margin: 16px 0 20px; padding-left: 24px; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 8px; line-height: 1.8; color: #334155; }
.article-body blockquote { border-left: 4px solid var(--accent); background: rgba(20,184,166,.06); padding: 16px 20px; border-radius: 0 12px 12px 0; margin: 24px 0; font-style: italic; color: #334155; }
.article-body img { border-radius: 12px; margin: 24px 0; box-shadow: var(--shadow); }
.article-body a { color: var(--primary); border-bottom: 1px solid rgba(2,132,199,.3); }
.article-body a:hover { color: var(--primary-dark); border-bottom-color: var(--primary-dark); }
.article-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.article-body th { background: #f0f9ff; padding: 12px 14px; text-align: left; border: 1px solid var(--border); font-weight: 600; }
.article-body td { padding: 10px 14px; border: 1px solid var(--border); }
.article-body code { background: #f1f5f9; padding: 2px 6px; border-radius: 4px; font-family: monospace; font-size: 14px; }
.article-footer { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.article-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag-chip { padding: 5px 12px; border-radius: 999px; background: #f0f9ff; color: var(--primary); font-size: 13px; border: 1px solid rgba(2,132,199,.2); transition: all .2s; }
.tag-chip:hover { background: var(--primary); color: #fff; }
.share-links { display: flex; gap: 8px; }
.share-link { width: 34px; height: 34px; border-radius: 8px; display: flex; align-items: center; justify-content: center; background: #f1f5f9; color: var(--text-light); transition: all .2s; font-size: 14px; }
.share-link:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.not-found { padding: 60px 20px; text-align: center; }
.not-found .not-found-icon { font-size: 60px; color: var(--text-muted); margin-bottom: 20px; animation: float 3s ease-in-out infinite; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
.not-found h2 { font-size: 28px; margin-bottom: 12px; }
.not-found p { color: var(--text-light); margin-bottom: 24px; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 999px; background: linear-gradient(135deg, #0284c7, #0ea5e9); color: #fff; font-weight: 600; font-size: 15px; box-shadow: 0 4px 16px rgba(2,132,199,.3); transition: all .25s ease; border: none; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(2,132,199,.4); }
.btn-outline { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 999px; border: 2px solid var(--primary); color: var(--primary); font-weight: 600; font-size: 15px; transition: all .25s ease; }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.sidebar-title { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.sidebar-title::after { content: ''; flex: 1; height: 2px; background: linear-gradient(90deg, var(--primary-light), transparent); }
.sidebar-list { list-style: none; }
.sidebar-list li { margin-bottom: 4px; }
.sidebar-list a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px; font-size: 14px; color: var(--text-light); transition: all .2s; }
.sidebar-list a:hover { background: rgba(2,132,199,.06); color: var(--primary); padding-left: 16px; }
.sidebar-list i { font-size: 13px; color: var(--primary-light); width: 18px; text-align: center; }
.sidebar-list .date { margin-left: auto; font-size: 12px; color: var(--text-muted); }
.sidebar-cta { background: linear-gradient(135deg, #0284c7, #14b8a6); border-radius: var(--radius); padding: 28px 24px; color: #fff; position: relative; overflow: hidden; }
.sidebar-cta::before { content: ''; position: absolute; top: -50px; right: -50px; width: 120px; height: 120px; border-radius: 50%; background: rgba(255,255,255,.1); }
.sidebar-cta h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.sidebar-cta p { font-size: 13px; opacity: .9; margin-bottom: 20px; line-height: 1.7; }
.sidebar-cta .btn-light { display: inline-block; padding: 10px 22px; border-radius: 999px; background: #fff; color: var(--primary); font-weight: 600; font-size: 14px; transition: all .25s; }
.sidebar-cta .btn-light:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,.15); }
.related-section { padding: 60px 0; }
.related-section .section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; }
.section-title { position: relative; font-size: 26px; font-weight: 700; color: var(--text); padding-left: 16px; }
.section-title::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 5px; height: 28px; border-radius: 4px; background: linear-gradient(180deg, #0284c7, #14b8a6); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: all .3s ease; }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.related-card .card-img { height: 180px; overflow: hidden; position: relative; }
.related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .card-img img { transform: scale(1.06); }
.related-card .card-img .badge-cat { position: absolute; top: 12px; left: 12px; padding: 4px 12px; border-radius: 999px; background: rgba(2,132,199,.9); color: #fff; font-size: 12px; font-weight: 500; }
.related-card .card-body { padding: 20px; }
.related-card h3 { font-size: 16px; font-weight: 600; line-height: 1.5; margin-bottom: 8px; }
.related-card h3 a:hover { color: var(--primary); }
.related-card p { font-size: 14px; color: var(--text-light); line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-meta { display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--text-muted); }
.faq-section { padding: 60px 0; }
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--card); border-radius: 12px; box-shadow: var(--shadow); margin-bottom: 16px; overflow: hidden; }
.faq-item details { padding: 0 24px; }
.faq-item summary { list-style: none; display: flex; align-items: center; justify-content: space-between; padding: 20px 0; font-size: 16px; font-weight: 600; color: var(--text); cursor: pointer; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--primary-light); transition: transform .3s; flex-shrink: 0; }
.faq-item details[open] summary i { transform: rotate(45deg); color: var(--accent); }
.faq-item .faq-content { padding: 0 0 20px; color: var(--text-light); font-size: 14.5px; line-height: 1.8; }
.cta-section { padding: 0 0 80px; }
.cta-box { background: linear-gradient(135deg, #0e7490, #0284c7, #06b6d4); border-radius: 24px; padding: 48px; text-align: center; position: relative; overflow: hidden; }
.cta-box::before { content: ''; position: absolute; top: -40px; left: -40px; width: 200px; height: 200px; border-radius: 50%; background: rgba(255,255,255,.08); }
.cta-box::after { content: ''; position: absolute; bottom: -60px; right: -30px; width: 160px; height: 160px; border-radius: 50%; background: rgba(255,255,255,.06); }
.cta-box h2 { color: #fff; font-size: 28px; font-weight: 700; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-box p { color: rgba(255,255,255,.9); margin-bottom: 28px; max-width: 560px; margin-left: auto; margin-right: auto; position: relative; z-index: 1; }
.cta-actions { display: flex; gap: 14px; justify-content: center; position: relative; z-index: 1; flex-wrap: wrap; }
.cta-actions .btn-white { display: inline-flex; align-items: center; gap: 8px; padding: 12px 30px; border-radius: 999px; background: #fff; color: var(--primary); font-weight: 600; font-size: 15px; transition: all .25s; box-shadow: 0 4px 14px rgba(0,0,0,.12); }
.cta-actions .btn-white:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,.18); }
.cta-actions .btn-ghost { display: inline-flex; align-items: center; gap: 8px; padding: 12px 30px; border-radius: 999px; border: 2px solid rgba(255,255,255,.6); color: #fff; font-weight: 600; font-size: 15px; transition: all .25s; }
.cta-actions .btn-ghost:hover { background: rgba(255,255,255,.12); transform: translateY(-3px); }
.site-footer { background: #0f172a; color: #94a3b8; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .brand-logo { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 360px; }
.footer-col h4 { color: #e2e8f0; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; color: #94a3b8; font-size: 14px; padding: 6px 0; transition: all .2s; }
.footer-col a:hover { color: var(--primary-light); transform: translateX(4px); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; display: flex; align-items: center; justify-content: space-between; font-size: 13px; flex-wrap: wrap; gap: 10px; }
@media (max-width: 1024px) {
    .article-layout { grid-template-columns: 1fr; gap: 32px; }
    .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
    .sidebar-card:last-child { grid-column: span 1; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .header-inner { height: 64px; }
    .nav-toggle { display: flex; }
    .main-nav { position: fixed; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 16px 24px; gap: 6px; box-shadow: 0 12px 30px rgba(0,0,0,.1); transform: translateY(-120%); transition: transform .3s ease; border-bottom: 1px solid var(--border); z-index: 99; }
    .main-nav.open { transform: translateY(0); }
    .nav-link { padding: 12px 16px; border-radius: 10px; font-size: 15px; }
    .article-hero { padding: 70px 0 60px; }
    .article-body { padding: 28px 20px; }
    .article-sidebar { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .cta-box { padding: 36px 20px; }
    .cta-box h2 { font-size: 22px; }
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .article-body h2 { font-size: 19px; }
    .article-body p { font-size: 14.5px; }
    .related-grid { grid-template-columns: 1fr; }
    .breadcrumb { font-size: 12px; }
    .hero-meta { gap: 12px; font-size: 13px; }
}