/* roulang page: index */
:root {
            --primary: #1e3a5f;
            --primary-light: #2a5298;
            --primary-dark: #0f2440;
            --accent: #e8491d;
            --accent-light: #ff6b3d;
            --bg-light: #f8f9fc;
            --bg-dark: #0d1b2a;
            --text-dark: #1a1a2e;
            --text-muted: #6b7280;
            --text-light: #f0f4f8;
            --border: #e2e8f0;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header & Nav */
        .site-header {
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226,232,240,0.6);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 72px;
            position: relative;
        }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .nav-left {
            justify-content: flex-start;
        }
        .nav-right {
            justify-content: flex-end;
        }
        .nav-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            padding: 0 24px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo span {
            background: none;
            -webkit-text-fill-color: var(--accent);
            color: var(--accent);
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-dark);
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            background: rgba(30,58,95,0.06);
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(30,58,95,0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .mobile-toggle:hover {
            background: rgba(0,0,0,0.05);
        }
        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 16px 24px;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-menu .nav-link {
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 1.05rem;
        }
        .mobile-menu .nav-link.active {
            background: rgba(30,58,95,0.08);
        }
        /* Hero */
        .hero {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(13,27,42,0.85) 0%, rgba(30,58,95,0.7) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
            padding: 100px 24px 80px;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-light), transparent);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(232,73,29,0.85);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero h1 {
            font-size: 3.6rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
            text-shadow: 0 4px 30px rgba(0,0,0,0.3);
        }
        .hero h1 .highlight {
            background: linear-gradient(135deg, #ff6b3d, #e8491d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 30px rgba(232,73,29,0.35);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(232,73,29,0.4);
            color: #fff;
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.5);
        }
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.12);
            border-color: #fff;
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline-dark {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline-dark:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        /* Section */
        .section {
            padding: 90px 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 12px;
            color: var(--text-dark);
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 48px;
            text-align: center;
        }
        .section-label {
            display: inline-block;
            background: rgba(232,73,29,0.1);
            color: var(--accent);
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .text-center {
            text-align: center;
        }
        /* Cards */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 28px;
        }
        .card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .card-body {
            padding: 24px;
        }
        .card-tag {
            display: inline-block;
            background: rgba(30,58,95,0.08);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            margin-bottom: 10px;
        }
        .card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .card-link {
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
        }
        .card-link:hover {
            gap: 10px;
        }
        /* Category cards */
        .cat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
            cursor: pointer;
            position: relative;
        }
        .cat-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .cat-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }
        .cat-card:hover .cat-card-img {
            transform: scale(1.05);
        }
        .cat-card-body {
            padding: 20px 24px 24px;
        }
        .cat-card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .cat-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            text-align: center;
        }
        .stat-item {
            padding: 32px 16px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-number .accent {
            color: var(--accent);
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-item {
            background: #fff;
            border-radius: var(--radius);
            padding: 36px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-number {
            width: 56px;
            height: 56px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 800;
            margin: 0 auto 18px;
            transition: var(--transition);
        }
        .step-item:hover .step-number {
            background: var(--accent);
            transform: scale(1.08);
        }
        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.92rem;
            color: var(--text-muted);
        }
        /* FAQ */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: #cbd5e1;
        }
        .faq-question {
            padding: 20px 28px;
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text-dark);
            transition: var(--transition);
        }
        .faq-question:hover {
            background: rgba(0,0,0,0.02);
        }
        .faq-question .icon {
            font-size: 1.2rem;
            transition: var(--transition);
            flex-shrink: 0;
            color: var(--accent);
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 28px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 28px 24px;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            color: #fff;
            text-align: center;
            padding: 80px 24px;
            border-radius: var(--radius-lg);
            margin: 0 24px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(232,73,29,0.15);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 32px;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }
        /* Info list (CMS) */
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .info-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: #fff;
            padding: 20px 24px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .info-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }
        .info-item .num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            background: rgba(232,73,29,0.08);
            color: var(--accent);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .info-item .info-content {
            flex: 1;
        }
        .info-item .info-title {
            font-weight: 600;
            font-size: 1.02rem;
            margin-bottom: 4px;
            color: var(--text-dark);
        }
        .info-item .info-title a {
            color: var(--text-dark);
        }
        .info-item .info-title a:hover {
            color: var(--accent);
        }
        .info-item .info-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .info-item .info-meta .tag {
            background: rgba(30,58,95,0.06);
            padding: 0 10px;
            border-radius: 12px;
            font-size: 0.8rem;
        }
        .empty-msg {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 1rem;
            background: #fff;
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 32px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand span {
            color: var(--accent);
        }
        .footer-about {
            font-size: 0.92rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.92rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        /* Back to top */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-md);
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
        }
        .back-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .back-top:hover {
            background: var(--accent);
            transform: translateY(-4px);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .hero h1 {
                font-size: 3rem;
            }
        }
        @media (max-width: 768px) {
            .nav-left, .nav-right {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-wrap {
                justify-content: space-between;
                height: 64px;
            }
            .nav-logo {
                font-size: 1.3rem;
                padding: 0;
            }
            .mobile-menu.active {
                display: flex;
            }
            .hero {
                min-height: 70vh;
                padding: 80px 20px 60px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-badge {
                font-size: 0.75rem;
            }
            .section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .cta-section {
                margin: 0 16px;
                padding: 60px 20px;
                border-radius: var(--radius);
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-grid > :first-child {
                grid-column: 1 / -1;
            }
            .info-item {
                padding: 16px 18px;
            }
            .faq-question {
                padding: 16px 20px;
                font-size: 0.98rem;
            }
            .faq-answer {
                padding: 0 20px;
            }
            .faq-item.open .faq-answer {
                padding: 0 20px 20px;
            }
        }
        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.1rem;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-actions .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 42px;
                height: 42px;
                font-size: 1rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #1e3a5f;
            --primary-light: #2a5298;
            --primary-dark: #142a47;
            --primary-hover: #244b7a;
            --accent: #e67e22;
            --accent-light: #f39c12;
            --accent-dark: #d35400;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0f1a2e;
            --text-main: #1a202c;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --radius: 0.75rem;
            --radius-lg: 1.25rem;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }
        /* ===== Header & Nav ===== */
        .site-header {
            background: var(--bg-dark);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 0;
            gap: 2rem;
            position: relative;
            min-height: 68px;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-left {
            margin-right: auto;
        }
        .nav-right {
            margin-left: auto;
        }
        .nav-logo {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.5px;
            flex-shrink: 0;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .nav-logo span {
            color: var(--accent);
        }
        .nav-logo:hover {
            opacity: 0.9;
            transform: scale(1.02);
        }
        .nav-link {
            padding: 0.5rem 1rem;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-link.active {
            color: #ffffff;
            background: var(--accent);
            box-shadow: 0 2px 12px rgba(230, 126, 34, 0.4);
        }
        .mobile-toggle {
            display: none;
            background: none;
            color: #ffffff;
            font-size: 1.4rem;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
        }
        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #1a2740;
            border-radius: 0 0 var(--radius) var(--radius);
            padding: 1rem 0;
            gap: 0.25rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .mobile-menu .nav-link {
            padding: 0.75rem 1.5rem;
            border-radius: 0;
            color: rgba(255, 255, 255, 0.8);
        }
        .mobile-menu .nav-link:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .mobile-menu .nav-link.active {
            background: var(--accent);
            color: #fff;
        }
        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-wrap {
                justify-content: center;
                padding: 0.6rem 0;
                min-height: 60px;
            }
            .nav-logo {
                font-size: 1.35rem;
            }
            .mobile-menu.open {
                display: flex;
            }
        }
        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.2rem;
            }
            .nav-wrap {
                padding: 0.5rem 0;
                min-height: 54px;
            }
        }
        /* ===== Article Hero ===== */
        .article-hero {
            background: var(--bg-dark);
            padding: 3.5rem 0 3rem;
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .article-hero .container {
            position: relative;
            z-index: 1;
        }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        .article-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
        }
        .article-hero .breadcrumb a:hover {
            color: var(--accent-light);
        }
        .article-hero .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.25);
        }
        .article-hero .breadcrumb .current {
            color: rgba(255, 255, 255, 0.85);
        }
        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.3;
            max-width: 860px;
            margin-bottom: 1.2rem;
            letter-spacing: -0.3px;
        }
        .article-hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .article-hero .meta span {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .article-hero .meta i {
            color: var(--accent-light);
        }
        .article-hero .meta .category-badge {
            background: var(--accent);
            color: #fff;
            padding: 0.2rem 1rem;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .article-hero {
                padding: 2.5rem 0 2rem;
            }
            .article-hero h1 {
                font-size: 1.7rem;
            }
            .article-hero .meta {
                gap: 1rem;
                font-size: 0.82rem;
            }
        }
        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 1.4rem;
            }
            .article-hero .meta {
                flex-direction: column;
                gap: 0.5rem;
            }
        }
        /* ===== Article Content ===== */
        .article-main {
            padding: 3.5rem 0 4rem;
        }
        .article-content-wrap {
            max-width: 860px;
            margin: 0 auto;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 2.5rem 3rem;
        }
        .article-content-wrap .content-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: #2d3748;
        }
        .article-content-wrap .content-body p {
            margin-bottom: 1.4rem;
        }
        .article-content-wrap .content-body h2,
        .article-content-wrap .content-body h3 {
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: var(--primary);
            font-weight: 700;
        }
        .article-content-wrap .content-body h2 {
            font-size: 1.6rem;
        }
        .article-content-wrap .content-body h3 {
            font-size: 1.25rem;
        }
        .article-content-wrap .content-body ul,
        .article-content-wrap .content-body ol {
            margin-bottom: 1.4rem;
            padding-left: 1.6rem;
        }
        .article-content-wrap .content-body li {
            margin-bottom: 0.4rem;
        }
        .article-content-wrap .content-body img {
            border-radius: var(--radius);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content-wrap .content-body blockquote {
            border-left: 4px solid var(--accent);
            background: #fef9ef;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
            color: #4a5568;
            font-style: italic;
        }
        .article-content-wrap .content-body a {
            color: var(--primary-light);
            border-bottom: 1px solid transparent;
        }
        .article-content-wrap .content-body a:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .article-not-found {
            text-align: center;
            padding: 4rem 2rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .article-not-found .icon {
            font-size: 4rem;
            color: var(--text-light);
            margin-bottom: 1.5rem;
        }
        .article-not-found h2 {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 0.8rem;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 2rem;
        }
        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--accent);
            color: #fff;
            padding: 0.75rem 2rem;
            border-radius: 999px;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn-back:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(230, 126, 34, 0.35);
        }
        @media (max-width: 768px) {
            .article-content-wrap {
                padding: 1.5rem 1.5rem;
            }
            .article-content-wrap .content-body {
                font-size: 0.98rem;
            }
            .article-main {
                padding: 2rem 0 2.5rem;
            }
        }
        @media (max-width: 520px) {
            .article-content-wrap {
                padding: 1.2rem 1rem;
                border-radius: var(--radius);
            }
            .article-content-wrap .content-body {
                font-size: 0.95rem;
            }
        }
        /* ===== Related / Bottom CTA ===== */
        .article-bottom-cta {
            background: var(--bg-dark);
            padding: 3rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .article-bottom-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.07;
            z-index: 0;
        }
        .article-bottom-cta .container {
            position: relative;
            z-index: 1;
        }
        .article-bottom-cta h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.8rem;
        }
        .article-bottom-cta p {
            color: rgba(255, 255, 255, 0.6);
            max-width: 560px;
            margin: 0 auto 1.8rem;
            font-size: 0.95rem;
        }
        .article-bottom-cta .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--accent);
            color: #fff;
            padding: 0.8rem 2.4rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        .article-bottom-cta .cta-btn:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(230, 126, 34, 0.4);
        }
        @media (max-width: 768px) {
            .article-bottom-cta {
                padding: 2rem 0;
            }
            .article-bottom-cta h3 {
                font-size: 1.3rem;
            }
        }
        /* ===== Footer ===== */
        .site-footer {
            background: #0b1422;
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.8rem;
        }
        .footer-brand span {
            color: var(--accent);
        }
        .footer-about {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
        }
        .site-footer h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1.2rem;
            letter-spacing: 0.3px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .footer-links li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .footer-links li a:hover {
            color: var(--accent-light);
            transform: translateX(4px);
        }
        .footer-links li span {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }
        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            .footer-about {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        /* ===== Utility ===== */
        .text-accent {
            color: var(--accent);
        }
        .text-primary {
            color: var(--primary);
        }
        .shadow-card {
            box-shadow: var(--shadow-md);
        }
        .rounded-2xl {
            border-radius: var(--radius-lg);
        }
        .transition-fast {
            transition: var(--transition);
        }
        /* focus visible */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-light);
            outline-offset: 2px;
        }
        /* selection */
        ::selection {
            background: var(--accent);
            color: #fff;
        }
        /* skeleton loading (optional) */
        .skeleton {
            background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
            background-size: 200% 100%;
            animation: skeleton-loading 1.5s infinite;
            border-radius: 6px;
        }
        @keyframes skeleton-loading {
            0% {
                background-position: 200% 0;
            }
            100% {
                background-position: -200% 0;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #e63946;
            --primary-light: #ff6b6b;
            --primary-dark: #c1121f;
            --primary-bg: #fff5f5;
            --secondary: #1d3557;
            --secondary-light: #2a4a7f;
            --secondary-dark: #0f1f33;
            --secondary-bg: #f0f4fa;
            --accent: #f4a261;
            --accent-light: #f7c08a;
            --neutral: #264653;
            --neutral-light: #3a6b7c;
            --surface: #ffffff;
            --text: #1f2937;
            --text-weak: #6b7280;
            --border: #e5e7eb;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.06);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: #fafbfc;
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }
        /* 导航 */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-nav, 0 2px 16px rgba(0, 0, 0, 0.06));
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            position: relative;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--secondary);
            display: flex;
            align-items: center;
            gap: 2px;
            transition: opacity 0.2s;
            flex-shrink: 0;
        }
        .nav-logo span {
            color: var(--primary);
        }
        .nav-logo:hover {
            opacity: 0.85;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 999px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-weak);
            transition: all 0.25s;
            white-space: nowrap;
        }
        .nav-link:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.30);
        }
        .nav-link.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .mobile-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--secondary);
            padding: 8px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .mobile-toggle:hover {
            background: var(--secondary-bg);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 6px;
            padding: 16px 0 24px;
            border-top: 1px solid var(--border);
        }
        .mobile-menu .nav-link {
            padding: 12px 20px;
            border-radius: 12px;
            font-size: 1.05rem;
        }
        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .mobile-menu.open {
                display: flex;
            }
            .nav-logo {
                font-size: 1.4rem;
                margin: 0 auto;
            }
            .nav-wrap {
                height: 64px;
            }
        }
        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }
        /* 页脚 */
        .site-footer {
            background: var(--secondary);
            color: #e0e7ef;
            padding: 60px 0 32px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .footer-brand span {
            color: var(--accent);
        }
        .footer-about {
            color: #b0c4d8;
            font-size: 0.95rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links li a,
        .footer-links li span {
            color: #b0c4d8;
            font-size: 0.95rem;
            transition: color 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.9rem;
            color: #889db8;
        }
        .footer-bottom a {
            color: var(--accent-light);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 20px;
            }
            .site-footer {
                padding: 48px 0 24px;
            }
            .footer-about {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        /* 通用组件 */
        .section {
            padding: 72px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-weak);
            max-width: 600px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.25s;
            cursor: pointer;
            border: none;
            line-height: 1.2;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.30);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.40);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-secondary {
            background: var(--surface);
            color: var(--secondary);
            border: 2px solid var(--border);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .btn-secondary:active {
            transform: scale(0.97);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(244, 162, 97, 0.30);
        }
        .btn-accent:hover {
            background: var(--accent-dark, #e07c2f);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(244, 162, 97, 0.40);
        }
        @media (max-width: 520px) {
            .btn {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }
        .card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.3s;
            border: 1px solid rgba(0, 0, 0, 0.04);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--primary-bg);
            color: var(--primary);
        }
        .badge-secondary {
            background: var(--secondary-bg);
            color: var(--secondary);
        }
        .badge-accent {
            background: #fef7ed;
            color: var(--accent-dark, #e07c2f);
        }
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 0.8rem;
            font-weight: 500;
            background: #f3f4f6;
            color: var(--text-weak);
            transition: all 0.2s;
        }
        .tag:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-weak);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .stat-number {
                font-size: 2rem;
            }
        }
        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--secondary);
            cursor: pointer;
            padding: 4px 0;
            transition: color 0.2s;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 1.2rem;
            color: var(--text-weak);
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            color: var(--text-weak);
            font-size: 0.95rem;
            line-height: 1.7;
            padding: 0 32px 0 0;
        }
        .faq-answer.open {
            max-height: 300px;
            padding-top: 14px;
        }
        /* 提示框 */
        .tip-box {
            background: var(--primary-bg);
            border-left: 4px solid var(--primary);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .tip-box-secondary {
            background: var(--secondary-bg);
            border-left-color: var(--secondary);
        }
        .tip-box-accent {
            background: #fef7ed;
            border-left-color: var(--accent);
        }
        /* 图片遮罩 */
        .img-mask {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-lg);
        }
        .img-mask::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.40), transparent 60%);
            pointer-events: none;
            border-radius: inherit;
        }
        .img-mask img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .img-mask:hover img {
            transform: scale(1.05);
        }
        /* 列表 */
        .list-dot {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .list-dot li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.95rem;
            color: var(--text);
        }
        .list-dot li::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
            margin-top: 8px;
        }
        /* 响应式网格辅助 */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 24px;
        }
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        /* hero区 */
        .hero-cat {
            min-height: 420px;
            display: flex;
            align-items: center;
            position: relative;
            background-size: cover;
            background-position: center;
            border-radius: 0 0 3rem 3rem;
            overflow: hidden;
        }
        .hero-cat::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(29, 53, 87, 0.85) 0%, rgba(29, 53, 87, 0.55) 100%);
            z-index: 1;
        }
        .hero-cat .container {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 80px 24px;
        }
        .hero-cat h1 {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 18px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.20);
        }
        .hero-cat p {
            font-size: 1.15rem;
            max-width: 560px;
            line-height: 1.7;
            opacity: 0.92;
            text-shadow: 0 1px 12px rgba(0, 0, 0, 0.15);
        }
        .hero-cat .hero-badge {
            display: inline-block;
            padding: 6px 20px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.20);
        }
        @media (max-width: 768px) {
            .hero-cat {
                min-height: 320px;
                border-radius: 0 0 2rem 2rem;
            }
            .hero-cat .container {
                padding: 60px 16px;
            }
            .hero-cat h1 {
                font-size: 2rem;
            }
            .hero-cat p {
                font-size: 1rem;
            }
        }
        /* 流程步骤 */
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            border-bottom: 1px dashed var(--border);
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .step-content h4 {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--secondary);
            margin-bottom: 4px;
        }
        .step-content p {
            font-size: 0.95rem;
            color: var(--text-weak);
            line-height: 1.6;
        }
        /* CTA区块 */
        .cta-block {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--neutral) 100%);
            border-radius: 2rem;
            padding: 60px 48px;
            text-align: center;
            color: #fff;
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .cta-block p {
            font-size: 1.05rem;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-block .btn {
            font-size: 1.05rem;
            padding: 16px 40px;
        }
        @media (max-width: 768px) {
            .cta-block {
                padding: 40px 24px;
                border-radius: 1.5rem;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .cta-block p {
                font-size: 0.95rem;
            }
        }
        /* 文章列表项 */
        .list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            align-items: flex-start;
        }
        .list-item:last-child {
            border-bottom: none;
        }
        .list-item .thumb {
            width: 120px;
            height: 80px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
            background: #e5e7eb;
        }
        .list-item .info h4 {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--secondary);
            margin-bottom: 4px;
            transition: color 0.2s;
        }
        .list-item .info h4:hover {
            color: var(--primary);
        }
        .list-item .info p {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.5;
        }
        .list-item .meta {
            font-size: 0.8rem;
            color: var(--text-weak);
            display: flex;
            gap: 16px;
            margin-top: 6px;
        }
        @media (max-width: 520px) {
            .list-item {
                flex-direction: column;
                gap: 12px;
            }
            .list-item .thumb {
                width: 100%;
                height: 160px;
            }
        }
        /* 焦点 outline */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        /* 滚动条美化 */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #f1f1f1;
        }
        ::-webkit-scrollbar-thumb {
            background: #c1c7cd;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #a0a7ae;
        }