/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0F172A;
            --primary-light: #1E293B;
            --secondary: #3B82F6;
            --secondary-dark: #2563EB;
            --accent: #F59E0B;
            --accent-light: #FCD34D;
            --bg: #F8FAFC;
            --bg-card: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 12px 48px rgba(15, 23, 42, 0.10);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== 基础 Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            font-size: 16px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(15, 23, 42, 0.06);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .site-logo {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-logo span {
            color: var(--secondary);
        }
        .site-logo i {
            font-size: 1.5rem;
            color: var(--secondary);
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 36px;
        }
        .site-nav a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .site-nav a:hover {
            color: var(--primary);
        }
        .site-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .site-nav a:hover::after {
            width: 100%;
        }
        .site-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .site-nav a.active::after {
            width: 100%;
            background: var(--accent);
            height: 2.5px;
        }
        .nav-cta {
            background: var(--secondary) !important;
            color: #fff !important;
            padding: 8px 20px !important;
            border-radius: 40px;
            font-weight: 600 !important;
            font-size: 0.85rem !important;
            transition: background var(--transition), transform var(--transition) !important;
        }
        .nav-cta:hover {
            background: var(--secondary-dark) !important;
            transform: translateY(-1px);
        }
        .nav-cta::after {
            display: none !important;
        }
        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 4px;
            background: none;
            border: none;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .site-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                flex-direction: column;
                gap: 12px;
                padding: 24px 32px 32px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.35s ease, opacity 0.35s ease;
                box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
                align-items: stretch;
            }
            .site-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .site-nav a {
                padding: 10px 0;
                font-size: 1rem;
                border-bottom: 1px solid var(--border-light);
            }
            .site-nav a:last-child {
                border-bottom: none;
            }
            .site-nav a.nav-cta {
                text-align: center;
                margin-top: 8px;
            }
            .nav-toggle {
                display: block;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 41, 59, 0.70) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            padding: 120px 24px 100px;
            margin-top: 0;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg), transparent);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            text-align: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 40px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.3px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            margin-bottom: 28px;
            color: rgba(255, 255, 255, 0.9);
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero h1 {
            font-size: clamp(2.6rem, 7vw, 4.2rem);
            font-weight: 800;
            line-height: 1.12;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            text-shadow: 0 2px 30px rgba(0, 0, 0, 0.2);
        }
        .hero h1 span {
            color: var(--accent);
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .hero-actions .btn-primary {
            background: var(--secondary);
            color: #fff;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
        }
        .hero-actions .btn-primary:hover {
            background: var(--secondary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(59, 130, 246, 0.45);
        }
        .hero-actions .btn-outline {
            background: transparent;
            color: #fff;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
        }
        .hero-actions .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px 48px;
            justify-content: center;
            margin-top: 56px;
        }
        .hero-stats .stat-item {
            text-align: center;
        }
        .hero-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
        }
        .hero-stats .stat-number span {
            color: var(--accent);
        }
        .hero-stats .stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
            letter-spacing: 0.3px;
        }
        @media (max-width: 640px) {
            .hero {
                min-height: 88vh;
                padding: 100px 16px 80px;
            }
            .hero-stats {
                gap: 24px 32px;
            }
            .hero-stats .stat-number {
                font-size: 1.6rem;
            }
        }

        /* ===== 通用板块标题 ===== */
        .section-heading {
            text-align: center;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            margin-bottom: 48px;
        }
        .section-heading .subtitle {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 40px;
            background: rgba(59, 130, 246, 0.08);
            color: var(--secondary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .section-heading h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 12px;
        }
        .section-heading p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        @media (max-width: 640px) {
            .section-heading {
                margin-bottom: 32px;
            }
        }

        /* ===== 板块间距 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-card);
        }
        @media (max-width: 640px) {
            .section {
                padding: 56px 0;
            }
        }

        /* ===== 卡片通用 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        /* ===== 分类入口卡片 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
            min-height: 280px;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card .cat-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .category-card .cat-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15, 23, 42, 0.60) 0%, transparent 60%);
        }
        .category-card .cat-body {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card .cat-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .category-card .cat-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .category-card .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--secondary);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 16px;
            transition: gap var(--transition);
        }
        .category-card .cat-link i {
            font-size: 0.75rem;
            transition: transform var(--transition);
        }
        .category-card .cat-link:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 768px) {
            .category-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-card .cat-img {
                height: 160px;
            }
        }

        /* ===== 资讯列表 ===== */
        .post-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .post-card {
            padding: 24px 28px;
            border-radius: var(--radius);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .post-card .post-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .post-card .post-meta .cat-tag {
            padding: 2px 12px;
            border-radius: 20px;
            background: rgba(59, 130, 246, 0.08);
            color: var(--secondary);
            font-weight: 600;
            font-size: 0.7rem;
            letter-spacing: 0.3px;
        }
        .post-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
            margin-bottom: 12px;
        }
        .post-card .post-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
            margin-top: auto;
        }
        .post-card .post-foot a {
            color: var(--secondary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .post-card .post-foot a i {
            font-size: 0.7rem;
            transition: transform var(--transition);
        }
        .post-card .post-foot a:hover i {
            transform: translateX(3px);
        }
        .post-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        @media (max-width: 768px) {
            .post-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .post-card {
                padding: 18px 20px;
            }
        }

        /* ===== 特色流程 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-item {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .feature-item .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.4rem;
            color: #fff;
        }
        .feature-item .icon-wrap.blue {
            background: var(--secondary);
        }
        .feature-item .icon-wrap.amber {
            background: var(--accent);
        }
        .feature-item .icon-wrap.emerald {
            background: #10B981;
        }
        .feature-item .icon-wrap.rose {
            background: #F43F5E;
        }
        .feature-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .feature-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-lg);
        }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--primary);
            cursor: pointer;
            transition: background var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            background: rgba(59, 130, 246, 0.03);
        }
        .faq-question i {
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--secondary);
        }
        .faq-answer {
            padding: 0 24px 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }
        .faq-item.open .faq-answer {
            padding: 0 24px 18px;
            max-height: 300px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(59, 130, 246, 0.08);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.06);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
            position: relative;
            z-index: 2;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--primary);
            padding: 16px 40px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
            position: relative;
            z-index: 2;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(245, 158, 11, 0.45);
        }
        .cta-section .btn-cta i {
            font-size: 0.9rem;
        }
        @media (max-width: 640px) {
            .cta-section {
                padding: 40px 24px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand .logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-brand .logo span {
            color: var(--accent);
        }
        .site-footer .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            max-width: 300px;
        }
        .site-footer h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .site-footer ul a:hover {
            color: #fff;
        }
        .site-footer .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: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 滚动渐入 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 辅助 ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .gap-section {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border), transparent);
            margin: 0;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 1024px) {
            .container {
                max-width: 100%;
            }
        }
        @media (max-width: 480px) {
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
            .cta-section .btn-cta {
                padding: 14px 28px;
                font-size: 0.9rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #3366ff;
            --primary-dark: #1a40f5;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-main: #0f172a;
            --text-muted: #64748b;
            --border-light: #e2e8f0;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --radius: 0.75rem;
            --radius-lg: 1rem;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body { font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif; background: var(--bg-body); color: var(--text-main); line-height: 1.6; }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color 0.25s, opacity 0.25s; }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
        @media (max-width: 768px) { .container { padding: 0 1rem; } }

        /* Header & Nav */
        .site-header { background: rgba(255,255,255,0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-light); position: sticky; top: 0; z-index: 100; }
        .site-header .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
        .site-logo { display: flex; align-items: center; gap: 0.5rem; font-size: 1.35rem; font-weight: 800; color: var(--text-main); letter-spacing: -0.02em; }
        .site-logo i { color: var(--accent); font-size: 1.4rem; }
        .site-logo span { color: var(--primary); }
        .site-logo:hover { opacity: 0.85; }
        .site-nav { display: flex; align-items: center; gap: 0.25rem; }
        .site-nav a { padding: 0.5rem 1rem; border-radius: 9999px; font-size: 0.9rem; font-weight: 500; color: var(--text-muted); transition: all 0.25s; position: relative; }
        .site-nav a:hover { color: var(--text-main); background: #f1f5f9; }
        .site-nav a.active { color: var(--primary); background: #eef5ff; font-weight: 600; }
        .site-nav a.nav-cta { background: var(--primary); color: #fff; padding: 0.5rem 1.25rem; font-weight: 600; box-shadow: 0 2px 8px rgba(51,102,255,0.3); }
        .site-nav a.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(51,102,255,0.4); }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text-main); cursor: pointer; padding: 0.25rem; border-radius: 0.5rem; }
        .nav-toggle:focus-visible { outline: 2px solid var(--primary); }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .site-nav { display: none; flex-direction: column; background: #fff; position: absolute; top: 68px; left: 0; right: 0; padding: 1rem 1.5rem 1.5rem; border-bottom: 1px solid var(--border-light); box-shadow: var(--shadow-lg); border-radius: 0 0 var(--radius-lg) var(--radius-lg); gap: 0.25rem; }
            .site-nav.open { display: flex; }
            .site-nav a { padding: 0.75rem 1rem; width: 100%; border-radius: var(--radius); }
            .site-nav a.nav-cta { margin-top: 0.5rem; text-align: center; }
        }

        /* Article Hero */
        .article-hero { position: relative; padding: 4rem 0 3rem; background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); overflow: hidden; }
        .article-hero::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity: 0.15; }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .breadcrumb { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-bottom: 1.5rem; flex-wrap: wrap; }
        .article-hero .breadcrumb a { color: rgba(255,255,255,0.7); }
        .article-hero .breadcrumb a:hover { color: #fff; }
        .article-hero .breadcrumb .sep { color: rgba(255,255,255,0.35); }
        .article-hero h1 { font-size: 2.2rem; font-weight: 800; color: #fff; line-height: 1.3; max-width: 840px; margin-bottom: 1rem; letter-spacing: -0.02em; }
        .article-hero .meta { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; color: rgba(255,255,255,0.7); font-size: 0.9rem; }
        .article-hero .meta .tag { display: inline-block; background: rgba(245,158,11,0.2); color: #fcd34d; padding: 0.2rem 0.8rem; border-radius: 9999px; font-size: 0.8rem; font-weight: 600; }
        .article-hero .meta i { margin-right: 0.35rem; opacity: 0.7; }
        @media (max-width: 768px) {
            .article-hero { padding: 2.5rem 0 2rem; }
            .article-hero h1 { font-size: 1.5rem; }
            .article-hero .meta { gap: 0.75rem; font-size: 0.8rem; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.25rem; }
        }

        /* Article Content */
        .article-main { padding: 3rem 0 4rem; }
        .article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 2.5rem; }
        .article-body { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 2.5rem; border: 1px solid var(--border-light); }
        .article-body .content { font-size: 1.05rem; line-height: 1.85; color: #1e293b; }
        .article-body .content p { margin-bottom: 1.25rem; }
        .article-body .content h2 { font-size: 1.5rem; font-weight: 700; margin: 2rem 0 1rem; color: #0f172a; }
        .article-body .content h3 { font-size: 1.2rem; font-weight: 600; margin: 1.5rem 0 0.75rem; color: #0f172a; }
        .article-body .content ul, .article-body .content ol { margin: 0 0 1.25rem 1.5rem; }
        .article-body .content li { margin-bottom: 0.5rem; }
        .article-body .content a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
        .article-body .content a:hover { color: var(--primary-dark); }
        .article-body .content img { border-radius: var(--radius); margin: 1.5rem 0; }
        .article-body .content blockquote { border-left: 4px solid var(--primary); background: #f1f5f9; padding: 1rem 1.5rem; margin: 1.5rem 0; border-radius: 0 var(--radius) var(--radius) 0; color: #334155; }
        .article-body .content pre { background: #0f172a; color: #e2e8f0; padding: 1.25rem; border-radius: var(--radius); overflow-x: auto; font-size: 0.9rem; margin: 1.5rem 0; }
        .article-body .content code { background: #f1f5f9; padding: 0.2rem 0.4rem; border-radius: 4px; font-size: 0.9em; }
        .article-body .content pre code { background: transparent; padding: 0; }
        .article-body .not-found { text-align: center; padding: 3rem 1rem; }
        .article-body .not-found i { font-size: 3rem; color: var(--text-muted); margin-bottom: 1rem; }
        .article-body .not-found h2 { font-size: 1.5rem; color: var(--text-main); margin-bottom: 0.75rem; }
        .article-body .not-found p { color: var(--text-muted); margin-bottom: 1.5rem; }
        .article-body .not-found a { display: inline-block; background: var(--primary); color: #fff; padding: 0.6rem 1.5rem; border-radius: 9999px; font-weight: 600; }
        .article-body .not-found a:hover { background: var(--primary-dark); }

        /* Sidebar */
        .article-sidebar { display: flex; flex-direction: column; gap: 1.5rem; }
        .sidebar-card { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 1.5rem; border: 1px solid var(--border-light); }
        .sidebar-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 1rem; color: var(--text-main); display: flex; align-items: center; gap: 0.5rem; }
        .sidebar-card h3 i { color: var(--accent); }
        .sidebar-card ul { list-style: none; }
        .sidebar-card ul li { border-bottom: 1px solid var(--border-light); padding: 0.6rem 0; }
        .sidebar-card ul li:last-child { border-bottom: none; }
        .sidebar-card ul li a { display: flex; align-items: flex-start; gap: 0.75rem; font-size: 0.9rem; color: var(--text-main); }
        .sidebar-card ul li a:hover { color: var(--primary); }
        .sidebar-card ul li a .num { flex-shrink: 0; width: 24px; height: 24px; background: #eef5ff; color: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.75rem; font-weight: 700; }
        .sidebar-card ul li a .text { flex: 1; line-height: 1.4; }
        .sidebar-card ul li a .text small { display: block; font-size: 0.75rem; color: var(--text-muted); margin-top: 0.15rem; }
        .sidebar-cta { background: linear-gradient(135deg, var(--primary) 0%, #1a40f5 100%); color: #fff; padding: 1.5rem; border-radius: var(--radius-lg); text-align: center; }
        .sidebar-cta h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
        .sidebar-cta p { font-size: 0.85rem; opacity: 0.85; margin-bottom: 1rem; }
        .sidebar-cta a { display: inline-block; background: #fff; color: var(--primary); padding: 0.5rem 1.5rem; border-radius: 9999px; font-weight: 600; font-size: 0.9rem; transition: all 0.25s; }
        .sidebar-cta a:hover { background: var(--accent); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,0,0,0.2); }
        @media (max-width: 1024px) { .article-layout { grid-template-columns: 1fr; } }
        @media (max-width: 768px) { .article-body { padding: 1.5rem; } .article-body .content { font-size: 1rem; } }

        /* Related Section */
        .related-section { background: #fff; border-top: 1px solid var(--border-light); padding: 3rem 0; }
        .related-section h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem; }
        .related-section h2 i { color: var(--accent); }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .related-card { background: var(--bg-body); border-radius: var(--radius-lg); border: 1px solid var(--border-light); overflow: hidden; transition: all 0.3s; }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card img { width: 100%; height: 160px; object-fit: cover; }
        .related-card .info { padding: 1rem 1.25rem 1.25rem; }
        .related-card .info h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.35rem; line-height: 1.4; }
        .related-card .info h3 a { color: var(--text-main); }
        .related-card .info h3 a:hover { color: var(--primary); }
        .related-card .info .meta { display: flex; align-items: center; gap: 0.75rem; font-size: 0.8rem; color: var(--text-muted); }
        .related-card .info .meta .tag { background: #eef5ff; color: var(--primary); padding: 0.1rem 0.6rem; border-radius: 9999px; font-size: 0.7rem; font-weight: 600; }
        @media (max-width: 768px) { .related-grid { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 520px) { .related-grid { grid-template-columns: 1fr; } }

        /* Footer */
        .site-footer { background: #0f172a; color: rgba(255,255,255,0.8); padding: 3.5rem 0 0; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.5fr; gap: 2.5rem; padding-bottom: 2rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
        .footer-brand .logo { font-size: 1.35rem; font-weight: 800; color: #fff; display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1rem; }
        .footer-brand .logo span { color: #8ebaff; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; opacity: 0.7; max-width: 360px; }
        .site-footer h4 { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 1rem; }
        .site-footer ul { list-style: none; }
        .site-footer ul li { margin-bottom: 0.5rem; }
        .site-footer ul li a { font-size: 0.9rem; opacity: 0.7; display: flex; align-items: center; gap: 0.5rem; }
        .site-footer ul li a:hover { opacity: 1; color: #fff; }
        .footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; padding: 1.25rem 0; font-size: 0.85rem; opacity: 0.6; }
        .footer-bottom a { color: rgba(255,255,255,0.8); }
        .footer-bottom a:hover { color: #fff; }
        @media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; } .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; } }

        /* FAQ CTA shared style */
        .faq-section { background: #fff; padding: 3.5rem 0; border-top: 1px solid var(--border-light); }
        .faq-section .container { max-width: 800px; }
        .faq-section h2 { text-align: center; font-size: 1.5rem; font-weight: 700; margin-bottom: 2rem; }
        .faq-item { border-bottom: 1px solid var(--border-light); padding: 1rem 0; }
        .faq-item summary { font-weight: 600; cursor: pointer; padding: 0.25rem 0; font-size: 1rem; display: flex; align-items: center; gap: 0.5rem; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::before { content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: 0.75rem; color: var(--primary); transition: transform 0.3s; }
        .faq-item[open] summary::before { transform: rotate(180deg); }
        .faq-item .answer { padding: 0.75rem 0 0.25rem 1.5rem; font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }

        .cta-section { background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); padding: 4rem 0; text-align: center; position: relative; overflow: hidden; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: 0.08; }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2rem; font-weight: 800; color: #fff; margin-bottom: 0.75rem; }
        .cta-section p { font-size: 1.05rem; color: rgba(255,255,255,0.7); max-width: 580px; margin: 0 auto 2rem; }
        .cta-section .btn-group { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }
        .cta-section .btn-primary { background: var(--accent); color: #0f172a; padding: 0.75rem 2rem; border-radius: 9999px; font-weight: 700; font-size: 1rem; transition: all 0.3s; }
        .cta-section .btn-primary:hover { background: #fbbf24; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(245,158,11,0.35); }
        .cta-section .btn-secondary { background: rgba(255,255,255,0.1); color: #fff; padding: 0.75rem 2rem; border-radius: 9999px; font-weight: 600; font-size: 1rem; border: 1px solid rgba(255,255,255,0.2); transition: all 0.3s; }
        .cta-section .btn-secondary:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); }
        @media (max-width: 520px) { .cta-section h2 { font-size: 1.4rem; } .cta-section p { font-size: 0.9rem; } }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1e2a4a;
            --primary-light: #2c3e6b;
            --accent: #f0b429;
            --accent-hover: #dba41f;
            --accent-light: #fef3d1;
            --bg-body: #f8f9fc;
            --bg-card: #ffffff;
            --bg-dark: #0f1724;
            --text-dark: #1a1f2e;
            --text-main: #2d3748;
            --text-muted: #6b7a8f;
            --text-light: #a0b0c3;
            --border-light: #e9edf4;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.10);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
        }
        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;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-dark);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 640px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(233, 237, 244, 0.6);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .site-logo span {
            color: var(--accent);
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .site-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.4rem 0;
            position: relative;
            letter-spacing: 0.01em;
            transition: var(--transition);
        }
        .site-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2.5px;
            background: var(--accent);
            border-radius: 4px;
            transition: var(--transition);
        }
        .site-nav a:hover {
            color: var(--primary);
        }
        .site-nav a:hover::after {
            width: 100%;
        }
        .site-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .site-nav a.active::after {
            width: 100%;
        }
        .site-nav a.nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 0.6rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            box-shadow: 0 4px 14px rgba(30, 42, 74, 0.25);
            transition: var(--transition);
        }
        .site-nav a.nav-cta::after {
            display: none;
        }
        .site-nav a.nav-cta:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(30, 42, 74, 0.30);
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 0.4rem 0.6rem;
            cursor: pointer;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(30, 42, 74, 0.05);
        }

        /* 移动端导航 */
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .site-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                gap: 0.5rem;
                padding: 1.5rem 2rem 2rem;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .site-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .site-nav a {
                font-size: 1.1rem;
                padding: 0.7rem 0;
                width: 100%;
                border-bottom: 1px solid rgba(233, 237, 244, 0.4);
            }
            .site-nav a.nav-cta {
                text-align: center;
                margin-top: 0.5rem;
                width: auto;
                border-bottom: none;
            }
        }

        /* ===== 通用组件 ===== */
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 0.75rem;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-light);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            letter-spacing: 0.02em;
            border: 1px solid rgba(240, 180, 41, 0.25);
        }
        .badge i {
            font-size: 0.75rem;
            color: var(--accent);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.8rem 2.2rem;
            border-radius: 40px;
            box-shadow: 0 4px 14px rgba(30, 42, 74, 0.20);
            transition: var(--transition);
            cursor: pointer;
            border: none;
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(30, 42, 74, 0.25);
        }
        .btn-primary i {
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .btn-primary:hover i {
            transform: translateX(4px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            border: 2px solid var(--primary);
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 42, 74, 0.15);
        }

        /* ===== Hero / 分类横幅 ===== */
        .category-hero {
            padding: 10rem 0 5rem;
            background: linear-gradient(135deg, var(--primary) 0%, #0f1a2e 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-body), transparent);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.15;
            margin-bottom: 1.2rem;
            color: #fff;
        }
        .category-hero h1 span {
            color: var(--accent);
        }
        .category-hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 2.5rem;
            flex-wrap: wrap;
            margin-top: 1.5rem;
        }
        .category-hero .hero-stats .stat {
            text-align: center;
        }
        .category-hero .hero-stats .stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .category-hero .hero-stats .stat .label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 400;
        }
        @media (max-width: 768px) {
            .category-hero {
                padding: 8rem 0 4rem;
                min-height: auto;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .category-hero .hero-stats {
                gap: 1.5rem;
            }
            .category-hero .hero-stats .stat .num {
                font-size: 1.5rem;
            }
        }

        /* ===== 攻略分类标签 ===== */
        .tag-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 1.5rem;
        }
        .tag-filter .tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            color: rgba(255, 255, 255, 0.85);
            padding: 0.5rem 1.4rem;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.15);
            cursor: pointer;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }
        .tag-filter .tag:hover,
        .tag-filter .tag.active {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
            box-shadow: 0 4px 14px rgba(240, 180, 41, 0.30);
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(240, 180, 41, 0.25);
        }
        .card .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
            background: var(--border-light);
        }
        .card .card-body {
            padding: 1.5rem 1.6rem 1.8rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card .card-body .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-light);
            padding: 0.2rem 0.9rem;
            border-radius: 40px;
            margin-bottom: 0.7rem;
            width: fit-content;
            border: 1px solid rgba(240, 180, 41, 0.15);
        }
        .card .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
            line-height: 1.35;
        }
        .card .card-body p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }
        .card .card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 1.2rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .card .card-body .card-meta .author {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .card .card-body .card-meta .author i {
            color: var(--accent);
        }

        /* ===== 排行榜 / 列表 ===== */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            background: var(--bg-card);
            padding: 1.2rem 1.6rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: default;
        }
        .rank-item:hover {
            border-color: rgba(240, 180, 41, 0.3);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .rank-item .rank-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-light);
            min-width: 2.4rem;
            text-align: center;
        }
        .rank-item .rank-num.top {
            color: var(--accent);
        }
        .rank-item .rank-info {
            flex: 1;
        }
        .rank-item .rank-info h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 0.15rem;
        }
        .rank-item .rank-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .rank-item .rank-badge {
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.25rem 1rem;
            border-radius: 40px;
            background: var(--accent-light);
            color: var(--primary);
        }

        /* ===== 深度文章列表 ===== */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .post-item {
            display: flex;
            gap: 1.5rem;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 1.2rem 1.6rem;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            align-items: flex-start;
        }
        .post-item:hover {
            border-color: rgba(240, 180, 41, 0.25);
            box-shadow: var(--shadow-sm);
            transform: translateX(3px);
        }
        .post-item .post-thumb {
            width: 120px;
            height: 80px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
            background: var(--border-light);
        }
        .post-item .post-content {
            flex: 1;
        }
        .post-item .post-content h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 0.3rem;
        }
        .post-item .post-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .post-item .post-content .post-meta {
            display: flex;
            gap: 1.2rem;
            margin-top: 0.5rem;
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .post-item .post-content .post-meta i {
            color: var(--accent);
            margin-right: 4px;
        }
        @media (max-width: 640px) {
            .post-item {
                flex-direction: column;
                padding: 1rem 1.2rem;
            }
            .post-item .post-thumb {
                width: 100%;
                height: 160px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(240, 180, 41, 0.2);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem 1.6rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-dark);
            background: transparent;
            transition: var(--transition);
            width: 100%;
            text-align: left;
            border: none;
        }
        .faq-question i {
            color: var(--accent);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.6rem 1.4rem;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #0f1a2e 100%);
            border-radius: var(--radius-lg);
            padding: 4rem 3rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.8rem;
            letter-spacing: -0.02em;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .cta-section .btn-primary {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 8px 28px rgba(240, 180, 41, 0.35);
        }
        .cta-section .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(240, 180, 41, 0.40);
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 3rem 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 4rem 0 0;
            margin-top: 5rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1.2fr;
            gap: 3rem;
            padding-bottom: 3rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-brand .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 1rem;
        }
        .site-footer .footer-brand .logo span {
            color: var(--accent);
        }
        .site-footer .footer-brand p {
            font-size: 0.95rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .site-footer h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1.2rem;
        }
        .site-footer ul li {
            margin-bottom: 0.7rem;
        }
        .site-footer ul li a {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer ul li a:hover {
            color: var(--accent);
            transform: translateX(3px);
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.8rem 0;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.45);
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 实用工具 ===== */
        .section-padding {
            padding: 4.5rem 0;
        }
        @media (max-width: 640px) {
            .section-padding {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }
        .text-accent {
            color: var(--accent);
        }
        .bg-card {
            background: var(--bg-card);
        }
        .shadow-hover:hover {
            box-shadow: var(--shadow-md);
        }
        .transition {
            transition: var(--transition);
        }

        /* ===== 滚动加载动画（简洁） ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 480px) {
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .card .card-body {
                padding: 1.2rem 1.2rem 1.4rem;
            }
            .rank-item {
                flex-wrap: wrap;
                padding: 1rem;
            }
            .rank-item .rank-badge {
                margin-left: auto;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1e3a5f;
            --primary-light: #2d5a8e;
            --accent: #f0b429;
            --accent-hover: #d9a020;
            --bg-light: #f8f9fc;
            --bg-dark: #0f1a2e;
            --text-dark: #1a2332;
            --text-muted: #6b7a8f;
            --border-light: #e8ecf2;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        input, textarea {
            font-family: inherit;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .site-logo span {
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 8px;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .site-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
        }
        .site-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
            border-radius: 2px;
        }
        .site-nav a:hover {
            color: var(--primary);
        }
        .site-nav a:hover::after {
            width: 100%;
        }
        .site-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .site-nav a.active::after {
            width: 100%;
            background: var(--accent);
        }
        .site-nav a.nav-cta {
            background: var(--accent);
            color: var(--bg-dark);
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .site-nav a.nav-cta::after {
            display: none;
        }
        .site-nav a.nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(240, 180, 41, 0.35);
        }
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 100%);
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.8);
            max-width: 640px;
            line-height: 1.7;
        }
        .page-banner .breadcrumb {
            display: flex;
            gap: 10px;
            align-items: center;
            margin-bottom: 24px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
        }
        .page-banner .breadcrumb a {
            color: rgba(255,255,255,0.7);
        }
        .page-banner .breadcrumb a:hover {
            color: var(--accent);
        }
        .page-banner .breadcrumb .sep {
            color: rgba(255,255,255,0.3);
        }
        .section {
            padding: 80px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 48px;
            line-height: 1.7;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .card {
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: #eef2f7;
        }
        .card-body {
            padding: 24px;
        }
        .card-body .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(240, 180, 41, 0.12);
            color: var(--accent-hover);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .card-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .card-body .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .card-body .meta i {
            margin-right: 4px;
            color: var(--accent);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 8px;
        }
        .tag-cloud .tag-item {
            padding: 8px 20px;
            border-radius: 50px;
            background: #fff;
            border: 1px solid var(--border-light);
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .tag-cloud .tag-item:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--bg-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(240, 180, 41, 0.3);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            margin: 40px 0;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-card .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-card .num span {
            color: var(--accent);
        }
        .stat-card .label {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .stat-card i {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 16px;
            display: block;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--bg-dark) 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.8);
            max-width: 560px;
            margin: 0 auto 36px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--bg-dark);
            padding: 16px 40px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            transition: var(--transition);
        }
        .cta-btn:hover {
            background: var(--accent-hover);
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(240, 180, 41, 0.4);
        }
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 64px 0 32px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .site-footer .footer-brand .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand .logo span {
            color: var(--accent);
        }
        .site-footer .footer-brand p {
            font-size: 0.92rem;
            color: rgba(255,255,255,0.6);
            line-height: 1.7;
            max-width: 360px;
        }
        .site-footer h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .site-footer ul {
            list-style: none;
        }
        .site-footer ul li {
            margin-bottom: 12px;
        }
        .site-footer ul li a {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .site-footer ul li a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .page-banner h1 { font-size: 2.2rem; }
            .section-title { font-size: 1.7rem; }
            .card-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
        }
        @media (max-width: 768px) {
            .site-header .container { height: 60px; }
            .site-logo { font-size: 1.15rem; }
            .site-logo i { font-size: 1.2rem; }
            .nav-toggle { display: block; }
            .site-nav {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
            }
            .site-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .site-nav a { font-size: 1rem; padding: 10px 0; width: 100%; }
            .site-nav a.nav-cta { justify-content: center; padding: 12px 24px; margin-top: 8px; }
            .page-banner { padding: 72px 0 56px; }
            .page-banner h1 { font-size: 1.8rem; }
            .page-banner p { font-size: 1rem; }
            .section { padding: 56px 0; }
            .section-title { font-size: 1.5rem; }
            .section-subtitle { font-size: 0.95rem; margin-bottom: 32px; }
            .card-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .site-footer .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section h2 { font-size: 1.7rem; }
            .cta-btn { padding: 14px 32px; font-size: 0.95rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .page-banner h1 { font-size: 1.5rem; }
            .stats-grid { grid-template-columns: 1fr; }
            .stat-card .num { font-size: 1.8rem; }
            .faq-question { font-size: 0.92rem; padding: 16px 18px; }
            .faq-answer { font-size: 0.88rem; padding: 0 18px 16px; }
        }