/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1e3a5f;
            --primary-light: #2d5a8e;
            --primary-dark: #132a44;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #0f172a;
            --text-dark: #1e293b;
            --text-body: #334155;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== 基础 Reset ===== */
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            color: var(--text-body);
            background-color: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        button { border: none; background: none; cursor: pointer; font-family: inherit; }
        input, textarea { font-family: inherit; }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 顶部信息条 ===== */
        .top-bar {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            font-size: 13px;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .top-bar .top-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .top-bar .top-left i {
            color: var(--accent);
        }
        .top-bar .top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        /* ===== 主导航 ===== */
        .main-header {
            background: var(--bg-white);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-list a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
        }
        .nav-list a:hover {
            background: rgba(30, 58, 95, 0.06);
            color: var(--primary);
        }
        .nav-list a.active {
            background: var(--primary);
            color: #fff;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 12px;
        }
        .btn-nav {
            padding: 9px 22px;
            background: var(--accent);
            color: #fff;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-nav:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.3);
        }
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            padding: 120px 0 140px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, 0.88) 0%, rgba(30, 58, 95, 0.75) 45%, rgba(15, 23, 42, 0.55) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 660px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 40px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            backdrop-filter: blur(10px);
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero h1 {
            font-size: 52px;
            font-weight: 900;
            line-height: 1.15;
            margin: 22px 0 18px;
            letter-spacing: 1px;
        }
        .hero-desc {
            font-size: 17px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 540px;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: var(--accent);
            color: #fff;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.45);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            backdrop-filter: blur(6px);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            gap: 36px;
            margin-top: 56px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            flex-wrap: wrap;
        }
        .stat-item .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
        }
        .stat-item .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 4px 14px;
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-dark);
            margin-top: 14px;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            max-width: 680px;
            line-height: 1.7;
        }

        /* ===== 核心服务卡片 ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }
        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            opacity: 0;
            transition: var(--transition);
        }
        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: transparent;
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            margin-bottom: 22px;
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== 分类入口 ===== */
        .category-section {
            background: var(--bg-white);
        }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 48px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 260px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .category-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.3) 55%, transparent 100%);
        }
        .category-card .content {
            position: relative;
            z-index: 2;
            padding: 24px 28px;
            color: #fff;
            width: 100%;
        }
        .category-card .content .cat {
            display: inline-block;
            padding: 3px 12px;
            background: rgba(245, 158, 11, 0.9);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .category-card .content h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .category-card .content p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
        }
        .category-card .content .link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 10px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            transition: var(--transition);
        }

        /* ===== 最新资讯 ===== */
        .news-section {
            background: var(--bg-light);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 48px;
        }
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .news-card .meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }
        .news-card .tag {
            display: inline-block;
            padding: 3px 12px;
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }
        .news-card .time {
            font-size: 12px;
            color: var(--text-light);
        }
        .news-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 8px;
            transition: var(--transition);
        }
        .news-card:hover h3 {
            color: var(--primary);
        }
        .news-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
        }
        .news-card .more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }
        .empty-tip {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            color: var(--text-light);
            font-size: 15px;
        }

        /* ===== 数据/流程板块 ===== */
        .data-section {
            background: var(--bg-dark);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .data-section::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -160px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.15), transparent 70%);
            border-radius: 50%;
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: 48px;
            position: relative;
            z-index: 2;
        }
        .data-item {
            text-align: center;
            padding: 30px 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .data-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }
        .data-item .num {
            font-size: 42px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
        }
        .data-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 6px;
        }

        .process-section {
            background: var(--bg-white);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
            position: relative;
        }
        .process-steps::before {
            content: '';
            position: absolute;
            top: 30px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-light), var(--accent));
            opacity: 0.3;
        }
        .step-item {
            text-align: center;
            position: relative;
        }
        .step-num {
            width: 60px;
            height: 60px;
            margin: 0 auto 18px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
            position: relative;
            z-index: 2;
            box-shadow: 0 4px 16px rgba(30, 58, 95, 0.3);
        }
        .step-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-light);
        }
        .faq-list {
            max-width: 800px;
            margin: 48px auto 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            color: var(--primary);
            transition: var(--transition);
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            padding: 0 24px 20px;
            max-height: 500px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -120px;
            left: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255,255,255,0.1), transparent 70%);
            border-radius: 50%;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(245,158,11,0.2), transparent 70%);
            border-radius: 50%;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-inner p {
            font-size: 16px;
            color: rgba(255,255,255,0.85);
            margin-bottom: 30px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            background: var(--accent);
            color: #fff;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(245,158,11,0.4);
        }
        .cta-btn:hover {
            background: var(--accent-light);
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 40px rgba(245,158,11,0.5);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 6px;
        }
        .footer-brand .logo-text span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255,255,255,0.6);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255,255,255,0.6);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .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: 13px;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom .domain {
            color: rgba(255,255,255,0.6);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero { padding: 100px 0 110px; }
            .hero h1 { font-size: 42px; }
            .service-grid { gap: 16px; }
            .service-card { padding: 28px 22px; }
        }

        @media (max-width: 768px) {
            .container { padding: 0 16px; }
            .top-bar .top-right { display: none; }
            .nav-list {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px;
                gap: 8px;
                box-shadow: 0 20px 40px rgba(0,0,0,0.1);
                transform: translateY(-120%);
                transition: var(--transition);
                border-radius: 0 0 var(--radius) var(--radius);
                z-index: 99;
            }
            .nav-list.open {
                transform: translateY(0);
            }
            .nav-list a {
                width: 100%;
                padding: 14px 20px;
                border-radius: var(--radius);
            }
            .nav-cta { display: none; }
            .mobile-toggle {
                display: flex;
            }
            .hero { padding: 80px 0 90px; }
            .hero h1 { font-size: 34px; }
            .hero-desc { font-size: 15px; }
            .hero-stats { gap: 24px; }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 32px 16px;
            }
            .process-steps::before { display: none; }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .section { padding: 60px 0; }
            .section-title { font-size: 28px; }
        }

        @media (max-width: 520px) {
            .data-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .hero h1 { font-size: 28px; }
            .hero-btns .btn-primary,
            .hero-btns .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .cta-inner h2 { font-size: 28px; }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        /* 焦点可访问性 */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 3px solid rgba(245, 158, 11, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category1 */
:root {
            --primary: #0b1f3a;
            --primary-light: #16324f;
            --primary-dark: #071527;
            --accent: #e8a33d;
            --accent-light: #f5b95c;
            --bg: #f5f7fa;
            --white: #ffffff;
            --text: #1e293b;
            --text-light: #64748b;
            --text-dark: #0f172a;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 4px 14px rgba(2, 12, 27, 0.06);
            --shadow: 0 10px 30px rgba(2, 12, 27, 0.08);
            --shadow-lg: 0 24px 48px rgba(2, 12, 27, 0.14);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--body-font, -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif);
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* === Top Bar === */
        .top-bar {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            font-size: 13px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 40px;
        }

        .top-bar i {
            color: var(--accent);
            margin-right: 6px;
        }

        .top-bar-domain {
            letter-spacing: 0.02em;
        }

        /* === Site Header === */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(2, 12, 27, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 76px;
        }

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

        .logo-text {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .logo-text span {
            color: var(--accent);
            margin-left: 2px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-list a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .nav-list a:hover {
            background: rgba(11, 31, 58, 0.04);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .nav-list a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(11, 31, 58, 0.25);
        }

        .nav-list a.active i {
            color: var(--accent);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            background: rgba(11, 31, 58, 0.05);
            color: var(--primary);
            font-size: 20px;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        /* === Page Hero / Banner === */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, rgba(7, 21, 39, 0.92), rgba(11, 31, 58, 0.78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            padding: 90px 0 80px;
            overflow: hidden;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 163, 61, 0.25), transparent 70%);
        }

        .page-banner-inner {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .crumb {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            background: rgba(255, 255, 255, 0.1);
            padding: 6px 14px;
            border-radius: 999px;
            backdrop-filter: blur(8px);
        }

        .crumb a:hover {
            color: var(--accent);
        }

        .crumb i {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.5);
        }

        .page-banner h1 {
            font-size: clamp(30px, 5vw, 46px);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 16px;
            letter-spacing: -0.02em;
        }

        .page-banner p {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 0 30px;
        }

        .banner-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            border: 2px solid transparent;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(232, 163, 61, 0.35);
        }

        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(232, 163, 61, 0.4);
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(232, 163, 61, 0.1);
            transform: translateY(-2px);
        }

        /* === Section Common === */
        .section {
            padding: 90px 0;
        }

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

        .section-head {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(232, 163, 61, 0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 999px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: clamp(26px, 4vw, 38px);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin: 0 0 14px;
            letter-spacing: -0.02em;
        }

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

        /* === Overview === */
        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .overview-copy h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin: 0 0 18px;
        }

        .overview-copy p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-light);
            margin: 0 0 14px;
        }

        .overview-copy .highlight {
            color: var(--primary);
            font-weight: 600;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .stat-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: rgba(232, 163, 61, 0.4);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-num span {
            color: var(--accent);
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-light);
            margin-top: 6px;
        }

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

        .step-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 36px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: var(--transition);
        }

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

        .step-card::before {
            counter-increment: step;
            content: counter(step) '';
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 42px;
            font-weight: 800;
            color: rgba(11, 31, 58, 0.06);
            line-height: 1;
        }

        .step-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(232, 163, 61, 0.12);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 10px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* === Guide Cards === */
        .guide-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .guide-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .guide-card-img {
            position: relative;
            height: 210px;
            overflow: hidden;
        }

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

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

        .guide-card-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .guide-card-tag {
            display: inline-block;
            background: rgba(232, 163, 61, 0.1);
            color: #b97f1c;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .guide-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .guide-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0 0 20px;
            flex: 1;
        }

        .guide-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            transition: gap 0.3s ease;
        }

        .guide-card-link:hover {
            gap: 12px;
            color: #b97f1c;
        }

        /* === Content List === */
        .content-wrap {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 50px;
            align-items: start;
        }

        .content-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .content-item {
            display: flex;
            gap: 20px;
            padding: 24px 28px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            align-items: flex-start;
        }

        .content-item:last-child {
            border-bottom: none;
        }

        .content-item:hover {
            background: rgba(11, 31, 58, 0.015);
        }

        .content-item-index {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(232, 163, 61, 0.1);
            color: var(--accent);
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .content-item:nth-child(even) .content-item-index {
            background: rgba(11, 31, 58, 0.06);
            color: var(--primary);
        }

        .content-item-txt h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 4px;
        }

        .content-item-txt h3 a:hover {
            color: var(--accent);
        }

        .content-item-txt p {
            font-size: 13px;
            color: var(--text-light);
            margin: 0;
            line-height: 1.6;
        }

        .content-item-meta {
            display: flex;
            gap: 16px;
            margin-top: 8px;
            font-size: 12px;
            color: #94a3b8;
        }

        /* === Side Panel === */
        .side-panel {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

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

        .panel-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .panel-card h3 i {
            color: var(--accent);
        }

        .panel-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .panel-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 14px;
            color: var(--text);
        }

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

        .panel-list li i {
            color: var(--accent);
            font-size: 12px;
        }

        .panel-tip {
            background: linear-gradient(135deg, rgba(11, 31, 58, 0.03), rgba(232, 163, 61, 0.06));
            border: 1px solid rgba(232, 163, 61, 0.2);
            border-radius: 12px;
            padding: 16px 18px;
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
            margin-top: 16px;
            display: flex;
            gap: 12px;
        }

        .panel-tip i {
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* === FAQ === */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(232, 163, 61, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 22px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            text-align: left;
            transition: var(--transition);
            background: transparent;
        }

        .faq-question i {
            color: var(--accent);
            transition: transform 0.4s ease;
            font-size: 14px;
            flex-shrink: 0;
            width: 16px;
            text-align: center;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 26px 22px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
        }

        .faq-item.open {
            border-color: rgba(232, 163, 61, 0.4);
            box-shadow: var(--shadow-sm);
        }

        /* === CTA === */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 100px 0;
            color: #fff;
            text-align: center;
        }

        .cta-inner {
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: clamp(28px, 4.5vw, 42px);
            font-weight: 800;
            margin: 0 0 16px;
            line-height: 1.2;
        }

        .cta-inner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 32px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
        }

        .btn-white:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(232, 163, 61, 0.35);
        }

        .btn-ghost {
            border: 2px solid rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        .btn-ghost:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(232, 163, 61, 0.1);
            transform: translateY(-2px);
        }

        /* === Footer === */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 50px;
            margin-bottom: 50px;
        }

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

        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.8;
            margin: 16px 0 0;
            max-width: 360px;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            margin: 0 0 18px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

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

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-col ul a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom .domain {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-bottom .domain i {
            color: var(--accent);
        }

        /* === Responsive === */
        @media (max-width: 1024px) {
            .overview-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

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

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

            .content-wrap {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

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

            .container {
                padding: 0 20px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .nav-list {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(2, 12, 27, 0.1);
                display: none;
                z-index: 100;
            }

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

            .nav-list a {
                padding: 14px 16px;
                border-radius: 12px;
                font-size: 15px;
            }

            .nav-list a.active {
                background: var(--primary);
                color: #fff;
            }

            .top-bar-domain {
                display: none;
            }

            .top-bar-inner {
                justify-content: center;
            }

            .page-banner {
                padding: 70px 0 60px;
            }

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

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

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 52px 0;
            }

            .container {
                padding: 0 16px;
            }

            .logo-text {
                font-size: 22px;
            }

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

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

            .stat-card {
                padding: 20px;
            }

            .banner-btns .btn {
                width: 100%;
                justify-content: center;
            }

            .faq-question {
                padding: 18px 18px;
                font-size: 15px;
            }

            .faq-answer-inner {
                padding: 0 18px 18px;
            }

            .content-item {
                padding: 20px;
                flex-wrap: wrap;
            }

            .cta-buttons .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
:root{
    --c-primary:#163868;
    --c-primary-light:#1f4c94;
    --c-primary-dark:#0c2346;
    --c-accent:#f0a419;
    --c-accent-light:#ffc95c;
    --c-bg:#f4f7fb;
    --c-card:#ffffff;
    --c-text:#1b2a45;
    --c-text-light:#5c6c87;
    --c-border:#e4eaf3;
    --c-dark:#0b1a35;
    --r-sm:10px;
    --r-md:18px;
    --r-lg:26px;
    --sh-sm:0 2px 14px rgba(16,32,68,.06);
    --sh-md:0 10px 32px rgba(16,32,68,.10);
    --sh-lg:0 18px 50px rgba(16,32,68,.15);
    --tr:all .3s ease;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--c-bg);color:var(--c-text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:var(--tr)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea,select{font-family:inherit}
a:focus-visible,button:focus-visible{outline:3px solid rgba(240,164,25,.5);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:520px){.container{padding:0 16px}}

/* 顶部信息条 */
.topbar{background:var(--c-dark);color:#aebed6;font-size:13px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;min-height:38px}
.topbar-text{display:inline-flex;align-items:center;gap:8px}
.topbar-text i{color:var(--c-accent)}
.topbar-domain{display:inline-flex;align-items:center;gap:6px;color:#7e92b5}
@media(max-width:768px){.topbar-domain{display:none}}
@media(max-width:520px){.topbar-text{font-size:12px}}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--c-border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-icon{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;box-shadow:0 6px 16px rgba(22,56,104,.28)}
.logo-text{font-size:22px;font-weight:800;color:var(--c-primary-dark);letter-spacing:.5px;line-height:1.2}
.logo-text span{color:var(--c-accent)}
.nav-list{display:flex;gap:6px}
.nav-list a{padding:10px 20px;border-radius:999px;font-weight:600;font-size:15px;color:var(--c-text);display:flex;align-items:center;gap:8px}
.nav-list a i{font-size:13px;opacity:.8}
.nav-list a:hover{color:var(--c-primary);background:#eef3fa}
.nav-list a.active{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px rgba(22,56,104,.28)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;background:#eef3fa;color:var(--c-primary);font-size:18px;align-items:center;justify-content:center}
@media(max-width:768px){
    .header-inner{height:64px}
    .nav-toggle{display:flex}
    .nav-list{position:absolute;top:100%;left:0;right:0;flex-direction:column;background:#fff;border-bottom:1px solid var(--c-border);padding:16px;gap:4px;display:none;box-shadow:0 20px 30px rgba(16,32,68,.08)}
    .nav-list.open{display:flex}
    .nav-list a{padding:14px 18px;border-radius:14px}
}
@media(max-width:520px){
    .brand-icon{width:38px;height:38px;font-size:16px;border-radius:10px}
    .logo-text{font-size:18px}
}

/* 文章顶部横幅 */
.article-banner{position:relative;padding:72px 0 64px;background-size:cover;background-position:center}
.article-banner-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,26,53,.94),rgba(22,56,104,.80))}
.article-banner-content{position:relative;z-index:2}
.breadcrumb{display:flex;gap:10px;align-items:center;color:#9fb2cf;font-size:13px;margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{display:inline-flex;align-items:center;gap:6px}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{opacity:.5}
.badge{display:inline-flex;align-items:center;gap:8px;background:rgba(240,164,25,.16);color:var(--c-accent-light);border-radius:999px;padding:7px 18px;font-size:13px;border:1px solid rgba(240,164,25,.35);margin-bottom:18px}
.article-banner-title{color:#fff;font-size:clamp(24px,4vw,40px);line-height:1.32;font-weight:800;max-width:880px;margin-bottom:18px}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;color:#b8c7de;font-size:14px}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
@media(max-width:768px){.article-banner{padding:48px 0 40px}}

/* 主内容区 */
.article-section{padding:64px 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start}
.article-card{background:var(--c-card);border-radius:var(--r-md);box-shadow:var(--sh-sm);border:1px solid var(--c-border);padding:42px}
@media(max-width:1024px){
    .article-layout{grid-template-columns:1fr}
    .sidebar-stack{flex-direction:row;flex-wrap:wrap}
    .side-card{flex:1 1 calc(50% - 12px)}
}
@media(max-width:768px){.article-card{padding:24px}}
@media(max-width:520px){.side-card{flex:1 1 100%}}

/* 正文排版 */
.article-body{font-size:16px;line-height:1.95}
.article-body h1{font-size:26px;margin:28px 0 14px;color:var(--c-primary-dark)}
.article-body h2{font-size:22px;margin:26px 0 12px;color:var(--c-primary-dark);padding-left:14px;border-left:4px solid var(--c-accent)}
.article-body h3{font-size:19px;margin:22px 0 10px;color:var(--c-primary-dark)}
.article-body h4{font-size:17px;margin:18px 0 8px}
.article-body p{margin-bottom:18px}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{color:var(--c-accent)}
.article-body ul,.article-body ol{margin:0 0 18px 22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:6px}
.article-body img{border-radius:var(--r-md);margin:20px 0;box-shadow:var(--sh-sm)}
.article-body blockquote{border-left:4px solid var(--c-accent);background:#f8f3e8;padding:16px 20px;border-radius:0 var(--r-sm) var(--r-sm) 0;margin:20px 0;color:var(--c-text-light);font-style:italic}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0}
.article-body th,.article-body td{border:1px solid var(--c-border);padding:10px 14px;text-align:left;font-size:14px}
.article-body th{background:#eef3fa;color:var(--c-primary-dark);font-weight:700}
.article-body code{background:#eef3fa;border-radius:6px;padding:2px 8px;font-size:14px}
.article-body pre{background:var(--c-dark);color:#e5ebf5;border-radius:var(--r-sm);padding:18px;overflow-x:auto;margin:20px 0;font-size:14px;line-height:1.6}

/* 文章底部 */
.article-footer{margin-top:34px;padding-top:24px;border-top:1px solid var(--c-border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.article-tags{display:flex;gap:10px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;gap:6px;background:#eef3fa;border-radius:999px;padding:6px 14px;font-size:13px;color:var(--c-text-light)}
.share-row{display:flex;gap:10px;align-items:center}
.share-label{font-size:14px;color:var(--c-text-light)}
.share-btn{width:38px;height:38px;border-radius:50%;background:#eef3fa;display:flex;align-items:center;justify-content:center;color:var(--c-text-light);font-size:14px}
.share-btn:hover{background:var(--c-primary);color:#fff;transform:translateY(-3px)}
@media(max-width:520px){.article-footer{flex-direction:column;align-items:flex-start}}

/* 内容未找到 */
.article-missing{text-align:center;padding:70px 24px}
.article-missing i{font-size:54px;color:var(--c-accent);margin-bottom:18px}
.article-missing h2{font-size:28px;margin-bottom:10px;color:var(--c-primary-dark)}
.article-missing p{color:var(--c-text-light);margin-bottom:28px}

/* 侧边栏 */
.sidebar-stack{display:flex;flex-direction:column;gap:24px}
.side-card{background:var(--c-card);border-radius:var(--r-md);border:1px solid var(--c-border);box-shadow:var(--sh-sm);overflow:hidden}
.side-card .side-img{height:150px;background-size:cover;background-position:center;position:relative}
.side-card .side-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,26,53,0),rgba(11,26,53,.35))}
.side-card-body{padding:22px}
.side-card-body h3{font-size:17px;margin-bottom:8px;color:var(--c-primary-dark)}
.side-card-body p{font-size:14px;color:var(--c-text-light);margin-bottom:16px}
.side-list li{margin-bottom:4px}
.side-list a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:12px;font-size:15px;font-weight:500}
.side-list a:hover{background:#f0f4fa;color:var(--c-primary)}
.side-list i{color:var(--c-accent);width:20px;text-align:center;font-size:14px}
.side-card-accent{background:linear-gradient(135deg,#fdf9ef,#fff);border-color:#f0e5cd}

/* 按钮 */
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--c-accent);color:var(--c-dark);padding:14px 30px;border-radius:999px;font-weight:700;font-size:15px;box-shadow:0 8px 20px rgba(240,164,25,.35);transition:var(--tr)}
.btn-primary:hover{background:var(--c-accent-light);transform:translateY(-2px);box-shadow:0 12px 28px rgba(240,164,25,.45)}
.btn-light{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3);padding:14px 30px;border-radius:999px;font-weight:700;font-size:15px;backdrop-filter:blur(6px);transition:var(--tr)}
.btn-light:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-outline{display:inline-flex;align-items:center;gap:8px;border:1.5px solid var(--c-primary);color:var(--c-primary);padding:12px 26px;border-radius:999px;font-weight:600;font-size:14px;transition:var(--tr)}
.btn-outline:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(22,56,104,.22)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%;justify-content:center}

/* 推荐板块 */
.related-section{background:#eef3fa;padding:64px 0}
.section-head{text-align:center;margin-bottom:42px}
.section-head h2{font-size:clamp(24px,3vw,34px);color:var(--c-primary-dark);margin-bottom:10px}
.section-head p{color:var(--c-text-light);max-width:680px;margin:0 auto}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{background:var(--c-card);border-radius:var(--r-md);overflow:hidden;border:1px solid var(--c-border);box-shadow:var(--sh-sm);transition:var(--tr);display:flex;flex-direction:column}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--sh-md)}
.related-card-img{height:180px;background-size:cover;background-position:center;position:relative}
.related-card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,26,53,0) 40%,rgba(11,26,53,.25))}
.related-card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.related-card-body h3{font-size:17px;margin-bottom:8px;color:var(--c-primary-dark)}
.related-card-body p{font-size:14px;color:var(--c-text-light);margin-bottom:16px;flex:1}
.card-link{color:var(--c-primary);font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.card-link i{font-size:12px;transition:transform .3s ease}
.card-link:hover{color:var(--c-accent)}
.card-link:hover i{transform:translateX(4px)}
@media(max-width:1024px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.related-grid{grid-template-columns:1fr}}

/* FAQ */
.faq-section{padding:64px 0}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-md);box-shadow:var(--sh-sm);padding:24px;margin-bottom:14px;transition:var(--tr)}
.faq-item.active{border-color:rgba(240,164,25,.4);box-shadow:var(--sh-md)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;font-weight:700;color:var(--c-primary-dark);font-size:16px}
.faq-q i{color:var(--c-accent);transition:transform .3s ease;font-size:14px;flex-shrink:0}
.faq-item.active .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--c-text-light)}
.faq-a-inner{padding-top:14px;font-size:15px;line-height:1.8}

/* CTA 横幅 */
.cta-band{position:relative;padding:80px 0;background-size:cover;background-position:center}
.cta-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,26,53,.94),rgba(22,56,104,.82))}
.cta-content{position:relative;z-index:2;text-align:center;color:#fff;max-width:740px;margin:0 auto}
.cta-content h2{font-size:clamp(26px,3.5vw,40px);font-weight:800;margin-bottom:14px}
.cta-content p{color:#b8c7de;margin-bottom:30px;font-size:16px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
@media(max-width:768px){.cta-band{padding:60px 0}}

/* 页脚 */
.site-footer{background:var(--c-dark);color:#9fb2cf;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;margin-top:14px;line-height:1.8;max-width:360px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;display:inline-flex;align-items:center;gap:8px}
.footer-col ul a i{color:var(--c-accent);font-size:13px;width:16px}
.footer-col ul a:hover{color:var(--c-accent)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:20px 0;font-size:13px;gap:12px;flex-wrap:wrap}
.footer-bottom .domain{display:inline-flex;align-items:center;gap:6px;color:#7e92b5}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr;gap:32px}.footer-bottom{flex-direction:column;text-align:center}}