/* roulang page: index */
:root {
            --primary: #0F3D3E;
            --primary-dark: #0B2C2D;
            --accent: #C89B5A;
            --accent-hover: #B07F3E;
            --bg: #F5F2EB;
            --surface: #FFFFFF;
            --text: #1A1D1A;
            --muted: #66706A;
            --line: #E0D9CC;
            --danger: #B5472F;
            --success: #2F6B4F;
            --font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'DIN Alternate', 'Roboto Mono', monospace;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --radius: 14px;
            --shadow: 0 8px 24px rgba(15, 61, 62, 0.06);
            --shadow-hover: 0 14px 34px rgba(15, 61, 62, 0.12);
            --transition: 0.2s ease;
            --container-max: 1200px;
            --section-padding: 80px 0;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            height: 68px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(15, 61, 62, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .logo-icon {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
        }

        .logo-icon svg {
            width: 28px;
            height: 28px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-body);
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--accent);
            color: #1A1D1A;
            border: 1px solid var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #1A1D1A;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(200, 155, 90, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-outline:hover {
            background: rgba(15, 61, 62, 0.05);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn:focus-visible {
            outline: 2px solid rgba(200, 155, 90, 0.6);
            outline-offset: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
            display: block;
        }

        /* ========== 移动端抽屉菜单 ========== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--surface);
            z-index: 999;
            padding: 32px 24px;
            overflow-y: auto;
        }

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

        .mobile-menu ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .mobile-menu a {
            font-size: 18px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 0;
            display: block;
            border-bottom: 1px solid var(--line);
        }

        .mobile-menu .btn {
            margin-top: 24px;
            width: 100%;
        }

        /* ========== Hero ========== */
        .hero {
            background: var(--primary-dark);
            background-image: url('/assets/images/a6fe18e1390cfa08.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            padding: 80px 0;
            color: #F5F2EB;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 61, 62, 0.88) 0%, rgba(11, 44, 45, 0.78) 100%);
            z-index: 0;
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 48px;
            align-items: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 155, 90, 0.2);
            border: 1px solid rgba(200, 155, 90, 0.5);
            color: var(--accent);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero h1 {
            font-family: var(--font-title);
            font-size: 38px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 20px;
            color: #F5F2EB;
            letter-spacing: 0.3px;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(245, 242, 235, 0.85);
            margin-bottom: 32px;
            max-width: 520px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-cta-group .btn-primary {
            background: var(--accent);
            color: #1A1D1A;
            border-color: var(--accent);
        }

        .hero-cta-group .btn-outline {
            background: transparent;
            color: #F5F2EB;
            border-color: rgba(245, 242, 235, 0.6);
        }

        .hero-cta-group .btn-outline:hover {
            background: rgba(245, 242, 235, 0.1);
            border-color: #F5F2EB;
            color: #F5F2EB;
        }

        .hero-visual {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .hero-data-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: var(--radius);
            padding: 20px;
            backdrop-filter: blur(6px);
            transition: all var(--transition);
        }

        .hero-data-card:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(200, 155, 90, 0.5);
            transform: translateY(-2px);
        }

        .hero-data-card .label {
            font-size: 13px;
            color: rgba(245, 242, 235, 0.7);
            margin-bottom: 8px;
        }

        .hero-data-card .value {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-data-card .unit {
            font-size: 14px;
            color: rgba(245, 242, 235, 0.6);
            margin-left: 4px;
        }

        /* ========== Section 通用 ========== */
        .section {
            padding: var(--section-padding);
        }

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

        .section-tight {
            padding: 56px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.2px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-hover);
            margin-bottom: 8px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* ========== 信任数据条 ========== */
        .trust-bar {
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 32px 0;
        }

        .trust-bar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .trust-item .number {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .trust-item .label {
            font-size: 14px;
            color: var(--muted);
            margin-top: 8px;
        }

        /* ========== 分类入口 ========== */
        .entry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .entry-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition);
        }

        .entry-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .entry-card .entry-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(15, 61, 62, 0.06);
            border-radius: 10px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .entry-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
        }

        .entry-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ========== 开户流程 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
        }

        .step-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
            position: relative;
            transition: all var(--transition);
        }

        .step-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #F5F2EB;
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
        }

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

        .step-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }

        /* ========== 产品对比 ========== */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: start;
        }

        .product-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 28px 24px;
            position: relative;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .product-card.featured {
            border: 2px solid var(--accent);
            padding-top: 36px;
        }

        .product-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .product-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #1A1D1A;
            font-size: 13px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .product-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            text-align: center;
        }

        .product-metric {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--line);
            font-size: 14px;
        }

        .product-metric .metric-value {
            font-family: var(--font-mono);
            font-weight: 700;
            color: var(--primary);
            font-size: 15px;
        }

        .product-card .product-desc {
            margin-top: 16px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            flex-grow: 1;
        }

        /* ========== 安全保障 ========== */
        .security-grid {
            display: grid;
            grid-template-columns: 6fr 6fr;
            gap: 40px;
            align-items: center;
        }

        .security-text h2 {
            font-family: var(--font-title);
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .security-text p {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .security-points {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .security-point {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 20px 16px;
            transition: all var(--transition);
        }

        .security-point:hover {
            border-color: var(--success);
            box-shadow: 0 6px 16px rgba(47, 107, 79, 0.08);
        }

        .security-point h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--success);
            margin-bottom: 6px;
        }

        .security-point p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
        }

        /* ========== 实盘交易特性 ========== */
        .trading-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-top: 1px solid var(--line);
        }

        .trading-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--line);
            transition: all var(--transition);
        }

        .trading-item:hover {
            padding-left: 8px;
        }

        .trading-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(200, 155, 90, 0.12);
            border-radius: 10px;
            color: var(--accent-hover);
        }

        .trading-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .trading-item p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ========== CMS 内容卡片 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .news-card .news-thumb {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: rgba(15, 61, 62, 0.06);
        }

        .news-card .news-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex-grow: 1;
        }

        .news-card .news-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-hover);
        }

        .news-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.5;
        }

        .news-card .news-excerpt {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            flex-grow: 1;
        }

        .news-card .news-meta {
            font-size: 13px;
            color: var(--muted);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .news-card .news-meta time {
            font-family: var(--font-mono);
            color: var(--accent-hover);
        }

        .empty-state {
            text-align: center;
            padding: 48px 24px;
            color: var(--muted);
            font-size: 15px;
            border: 1px dashed var(--line);
            border-radius: var(--radius);
            background: var(--surface);
        }

        /* ========== 新手入门 ========== */
        .beginner-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .beginner-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 20px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .beginner-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .beginner-card h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.5;
        }

        .beginner-card p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
        }

        .beginner-card .read-time {
            font-size: 12px;
            color: var(--accent-hover);
            font-family: var(--font-mono);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .faq-item:hover {
            border-color: var(--accent);
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            text-align: left;
            cursor: pointer;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: rgba(15, 61, 62, 0.04);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            margin-left: 16px;
            transition: transform var(--transition);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition);
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
        }

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

        .faq-item.open .faq-answer {
            max-height: 500px;
        }

        /* ========== 用户评价 ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 24px;
            transition: all var(--transition);
        }

        .testimonial-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
        }

        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .testimonial-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            object-fit: cover;
            background: rgba(15, 61, 62, 0.08);
        }

        .testimonial-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
        }

        .testimonial-tag {
            font-size: 12px;
            color: var(--accent-hover);
        }

        .testimonial-content {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
        }

        /* ========== 风险提示 ========== */
        .risk-box {
            background: rgba(181, 71, 47, 0.06);
            border: 1px solid var(--danger);
            border-radius: var(--radius);
            padding: 32px;
            max-width: 900px;
            margin: 0 auto;
        }

        .risk-box h2 {
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 700;
            color: var(--danger);
            margin-bottom: 16px;
        }

        .risk-box p {
            font-size: 15px;
            color: var(--text);
            line-height: 1.9;
            margin-bottom: 8px;
        }

        /* ========== 开户表单 ========== */
        .form-grid {
            display: grid;
            grid-template-columns: 6fr 6fr;
            gap: 40px;
            align-items: start;
        }

        .form-text h2 {
            font-family: var(--font-title);
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .form-text p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .form-text ul {
            list-style: none;
            padding: 0;
        }

        .form-text ul li {
            font-size: 14px;
            color: var(--muted);
            padding: 8px 0;
            border-bottom: 1px solid var(--line);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .form-text ul li::before {
            content: '✓';
            color: var(--success);
            font-weight: 700;
            margin-right: 4px;
        }

        .form-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .form-group input {
            width: 100%;
            height: 42px;
            padding: 0 14px;
            border: 1px solid var(--line);
            border-radius: 8px;
            font-size: 15px;
            color: var(--text);
            background: var(--surface);
            transition: all var(--transition);
        }

        .form-group input:focus-visible {
            border-color: var(--primary);
            outline: 2px solid rgba(15, 61, 62, 0.15);
            outline-offset: 0;
        }

        .form-group input::placeholder {
            color: #A0A8A2;
        }

        .form-submit {
            width: 100%;
            padding: 14px;
            font-size: 16px;
            font-weight: 700;
            border-radius: 10px;
            background: var(--accent);
            color: #1A1D1A;
            border: 1px solid var(--accent);
            transition: all var(--transition);
        }

        .form-submit:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(200, 155, 90, 0.3);
        }

        .form-submit:focus-visible {
            outline: 2px solid rgba(200, 155, 90, 0.6);
            outline-offset: 2px;
        }

        /* ========== 证书 ========== */
        .cert-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
        }

        .cert-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 20px 16px;
            text-align: center;
            transition: all var(--transition);
        }

        .cert-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
        }

        .cert-item .cert-thumb {
            width: 60px;
            height: 60px;
            margin: 0 auto 12px;
            background: rgba(15, 61, 62, 0.06);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .cert-item h3 {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }

        .cert-item p {
            font-size: 11px;
            color: var(--muted);
            margin-top: 4px;
            font-family: var(--font-mono);
        }

        /* ========== 转化横幅 ========== */
        .cta-banner {
            background: var(--primary-dark);
            border-radius: var(--radius);
            padding: 48px 40px;
            text-align: center;
            color: #F5F2EB;
        }

        .cta-banner h2 {
            font-family: var(--font-title);
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #F5F2EB;
        }

        .cta-banner p {
            font-size: 15px;
            color: rgba(245, 242, 235, 0.75);
            margin-bottom: 24px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 服务保障 ========== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .guarantee-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition);
        }

        .guarantee-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

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

        .guarantee-item p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(245, 242, 235, 0.7);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 3fr 2fr 2fr 2fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            color: #F5F2EB;
            font-size: 18px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(245, 242, 235, 0.6);
        }

        .footer-col h3 {
            font-size: 15px;
            font-weight: 700;
            color: #F5F2EB;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(245, 242, 235, 0.6);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(245, 242, 235, 0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
        }

        .footer-bottom .domain {
            font-family: var(--font-mono);
            color: rgba(245, 242, 235, 0.5);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 18px;
            }
            .main-nav a {
                font-size: 14px;
            }
            .hero .container {
                grid-template-columns: 6fr 6fr;
                gap: 32px;
            }
            .entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .beginner-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .cert-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero {
                padding: 56px 0;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-visual {
                grid-template-columns: 1fr 1fr;
            }
            .trust-bar-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .entry-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .product-grid {
                grid-template-columns: 1fr;
            }
            .security-points {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .beginner-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cert-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn {
                width: 100%;
            }
            .hero-visual {
                grid-template-columns: 1fr;
            }
            .trust-bar-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .cert-grid {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .cta-banner {
                padding: 32px 20px;
            }
            .cta-banner h2 {
                font-size: 22px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0F3D3E;
            --primary-dark: #0B2C2D;
            --accent: #C89B5A;
            --accent-hover: #B07F3E;
            --bg: #F5F2EB;
            --surface: #FFFFFF;
            --text: #1A1D1A;
            --muted: #66706A;
            --line: #E0D9CC;
            --danger: #B5472F;
            --success: #2F6B4F;
            --font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'DIN Alternate', 'Roboto Mono', monospace;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --radius: 14px;
            --shadow: 0 8px 24px rgba(15, 61, 62, 0.06);
            --shadow-hover: 0 14px 34px rgba(15, 61, 62, 0.12);
            --transition: 0.2s ease;
            --container-max: 1200px;
            --section-padding: 64px 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            height: 68px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(15, 61, 62, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
        }
        .logo-icon svg {
            width: 28px;
            height: 28px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-body);
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--accent);
            color: #1A1D1A;
            border: 1px solid var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #1A1D1A;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(200, 155, 90, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: rgba(15, 61, 62, 0.05);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn:focus-visible {
            outline: 2px solid rgba(200, 155, 90, 0.6);
            outline-offset: 2px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
            display: block;
        }
        /* ========== 移动端抽屉菜单 ========== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--surface);
            z-index: 999;
            padding: 32px 24px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .mobile-menu a {
            font-size: 18px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 0;
            border-bottom: 1px solid var(--line);
            display: block;
        }
        .mobile-menu .btn {
            margin-top: 16px;
            width: 100%;
        }
        /* ========== 文章页头部 ========== */
        .article-head {
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 36px 0 28px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
            font-size: 14px;
            color: var(--muted);
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--line);
            margin-left: 4px;
        }
        .breadcrumb a {
            color: var(--muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px 20px;
            margin-bottom: 16px;
            font-size: 14px;
            color: var(--muted);
        }
        .article-cat {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            background: rgba(15, 61, 62, 0.08);
            color: var(--primary);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
        }
        .article-head h1 {
            font-family: var(--font-title);
            font-size: 32px;
            line-height: 1.4;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 12px;
        }
        .article-head .article-excerpt {
            font-size: 16px;
            color: var(--muted);
            margin: 0;
            max-width: 850px;
        }
        .article-cover {
            margin-top: 20px;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .article-cover img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        /* ========== 正文区域 ========== */
        .article-content {
            padding: var(--section-padding);
            background: var(--bg);
        }
        .article-body {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 40px 48px;
            box-shadow: var(--shadow);
            border: 1px solid var(--line);
            max-width: 860px;
            margin: 0 auto;
        }
        .article-body h2 {
            font-family: var(--font-title);
            font-size: 24px;
            line-height: 1.5;
            color: var(--primary-dark);
            margin: 32px 0 12px;
            padding-top: 8px;
        }
        .article-body h3 {
            font-family: var(--font-title);
            font-size: 20px;
            line-height: 1.5;
            color: var(--primary-dark);
            margin: 24px 0 8px;
        }
        .article-body p {
            margin: 0 0 16px;
            color: var(--text);
            font-size: 16px;
            line-height: 1.9;
        }
        .article-body ul,
        .article-body ol {
            margin: 0 0 16px 24px;
            padding: 0;
        }
        .article-body li {
            margin-bottom: 8px;
            line-height: 1.8;
        }
        .article-body blockquote {
            margin: 24px 0;
            padding: 16px 20px;
            background: rgba(15, 61, 62, 0.05);
            border-left: 4px solid var(--accent);
            border-radius: 8px;
            color: var(--primary-dark);
            font-size: 15px;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 24px 0;
        }
        .article-body a {
            color: var(--primary);
            border-bottom: 1px dashed var(--accent);
        }
        .article-body a:hover {
            color: var(--accent-hover);
            border-bottom-color: var(--accent-hover);
        }
        .empty-state {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 60px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--line);
        }
        .empty-state p {
            font-size: 18px;
            color: var(--muted);
            margin-bottom: 20px;
        }
        /* ========== 风险提示条 ========== */
        .risk-notice {
            background: rgba(181, 71, 47, 0.08);
            border: 1px solid rgba(181, 71, 47, 0.3);
            border-radius: var(--radius);
            padding: 20px 24px;
            max-width: 860px;
            margin: 24px auto 0;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .risk-notice .risk-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            color: var(--danger);
        }
        .risk-notice .risk-icon svg {
            width: 24px;
            height: 24px;
        }
        .risk-notice p {
            margin: 0;
            font-size: 14px;
            color: var(--danger);
            line-height: 1.7;
            font-weight: 500;
        }
        /* ========== 快捷入口 ========== */
        .quick-entries {
            padding: 48px 0;
            background: var(--surface);
            border-top: 1px solid var(--line);
        }
        .quick-entries .section-head {
            text-align: center;
            margin-bottom: 24px;
        }
        .quick-entries .section-head h2 {
            font-family: var(--font-title);
            font-size: 26px;
            color: var(--primary-dark);
            margin: 0 0 8px;
        }
        .quick-entries .section-head p {
            color: var(--muted);
            margin: 0;
        }
        .quick-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .quick-card {
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all var(--transition);
        }
        .quick-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .quick-card .quick-icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
            color: var(--accent);
        }
        .quick-card .quick-icon svg {
            width: 36px;
            height: 36px;
        }
        .quick-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            margin: 0;
            line-height: 1.4;
        }
        .quick-card p {
            font-size: 13px;
            color: var(--muted);
            margin: 4px 0 0;
            line-height: 1.5;
        }
        /* ========== 上一篇/下一篇 ========== */
        .post-nav-section {
            padding: 48px 0;
            background: var(--bg);
        }
        .post-nav-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            max-width: 860px;
            margin: 0 auto;
        }
        .post-nav-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all var(--transition);
        }
        .post-nav-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .post-nav-card .nav-label {
            font-size: 13px;
            color: var(--muted);
            font-weight: 500;
        }
        .post-nav-card .nav-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary-dark);
            line-height: 1.5;
        }
        .post-nav-card.next {
            text-align: right;
            align-items: flex-end;
        }
        .back-home-box {
            text-align: center;
            margin-top: 24px;
        }
        /* ========== 相关推荐 ========== */
        .related-posts {
            padding: 48px 0;
            background: var(--surface);
            border-top: 1px solid var(--line);
        }
        .related-posts .section-head {
            text-align: center;
            margin-bottom: 24px;
        }
        .related-posts .section-head h2 {
            font-family: var(--font-title);
            font-size: 26px;
            color: var(--primary-dark);
            margin: 0 0 8px;
        }
        .related-posts .section-head p {
            color: var(--muted);
            margin: 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 20px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .related-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .related-card .related-cat {
            font-size: 12px;
            color: var(--accent-hover);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .related-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            margin: 0;
            line-height: 1.5;
        }
        .related-card p {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.7;
            flex: 1;
        }
        .related-card time {
            font-size: 13px;
            color: var(--muted);
            font-family: var(--font-mono);
        }
        /* ========== 底部CTA ========== */
        .article-cta {
            padding: 48px 0;
            background: var(--bg);
        }
        .cta-banner {
            background: var(--primary-dark);
            border-radius: var(--radius);
            padding: 32px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-banner .cta-text h2 {
            font-family: var(--font-title);
            font-size: 22px;
            color: var(--bg);
            margin: 0 0 6px;
        }
        .cta-banner .cta-text p {
            color: rgba(245, 242, 235, 0.8);
            margin: 0;
            font-size: 15px;
        }
        .cta-banner .btn {
            background: var(--accent);
            color: #1A1D1A;
            border: 1px solid var(--accent);
        }
        .cta-banner .btn:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #1A1D1A;
        }
        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(245, 242, 235, 0.8);
            padding: 48px 0 24px;
            border-top: 1px solid var(--line);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: var(--bg);
            font-size: 18px;
            margin-bottom: 12px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(245, 242, 235, 0.7);
            margin: 0;
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--bg);
            margin: 0 0 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col a {
            font-size: 14px;
            color: rgba(245, 242, 235, 0.7);
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(245, 242, 235, 0.2);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(245, 242, 235, 0.6);
        }
        .footer-bottom p {
            margin: 0;
        }
        .footer-bottom .domain {
            font-family: var(--font-mono);
            letter-spacing: 0.5px;
        }
        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .quick-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-cta .btn {
                display: none;
            }
            .header-cta .hamburger {
                display: flex;
            }
            .article-head h1 {
                font-size: 28px;
            }
            .article-body {
                padding: 24px 20px;
            }
            .post-nav-grid {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .article-head {
                padding: 24px 0 20px;
            }
            .article-content,
            .quick-entries,
            .post-nav-section,
            .related-posts,
            .article-cta {
                padding: 40px 0;
            }
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .article-head h1 {
                font-size: 24px;
            }
            .article-body {
                padding: 20px 16px;
                border-radius: 10px;
            }
            .quick-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .breadcrumb {
                font-size: 13px;
            }
            .article-meta {
                gap: 8px 12px;
                font-size: 13px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0F3D3E;
            --primary-dark: #0B2C2D;
            --accent: #C89B5A;
            --accent-hover: #B07F3E;
            --bg: #F5F2EB;
            --surface: #FFFFFF;
            --text: #1A1D1A;
            --muted: #66706A;
            --line: #E0D9CC;
            --danger: #B5472F;
            --success: #2F6B4F;
            --font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'DIN Alternate', 'Roboto Mono', monospace;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --radius: 14px;
            --shadow: 0 8px 24px rgba(15, 61, 62, 0.06);
            --shadow-hover: 0 14px 34px rgba(15, 61, 62, 0.12);
            --transition: 0.2s ease;
            --container-max: 1200px;
            --section-padding: 64px 0;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent-hover); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            height: 68px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: 0 4px 16px rgba(15, 61, 62, 0.08); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
        }
        .logo-icon svg { width: 28px; height: 28px; }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active { color: var(--primary); }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .header-cta { display: flex; align-items: center; gap: 12px; }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-body);
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--accent);
            color: #1A1D1A;
            border: 1px solid var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #1A1D1A;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(200, 155, 90, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: rgba(15, 61, 62, 0.05);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn:focus-visible { outline: 2px solid rgba(200, 155, 90, 0.6); outline-offset: 2px; }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
            display: block;
        }

        /* ========== 移动端抽屉菜单 ========== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--surface);
            z-index: 999;
            padding: 32px 24px;
            overflow-y: auto;
        }
        .mobile-menu.open { display: block; }
        .mobile-menu ul { list-style: none; padding: 0; margin: 0; }
        .mobile-menu li { margin-bottom: 20px; }
        .mobile-menu a {
            font-size: 18px;
            font-weight: 500;
            color: var(--text);
            display: block;
            padding: 8px 0;
            border-bottom: 1px solid var(--line);
        }
        .mobile-menu a.active { color: var(--primary); font-weight: 700; }
        .mobile-menu .btn { margin-top: 16px; width: 100%; }

        /* ========== 分类页Hero/简介区 ========== */
        .cat-hero {
            background: linear-gradient(rgba(15, 61, 62, 0.88), rgba(11, 44, 45, 0.92)), url('/assets/images/a6fe18e1390cfa08.webp') center/cover no-repeat;
            padding: 64px 0 56px;
            color: #fff;
            position: relative;
        }
        .cat-hero h1 {
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
            color: #fff;
        }
        .cat-hero p {
            font-size: 16px;
            line-height: 1.85;
            color: rgba(255,255,255,0.85);
            max-width: 760px;
            margin-bottom: 0;
        }
        .cat-hero .breadcrumb-mini {
            display: flex;
            gap: 8px;
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .cat-hero .breadcrumb-mini a { color: rgba(255,255,255,0.7); }
        .cat-hero .breadcrumb-mini a:hover { color: var(--accent); }

        /* ========== 通用section样式 ========== */
        section { padding: var(--section-padding); }
        .section-head { margin-bottom: 40px; }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .section-head p { color: var(--muted); font-size: 16px; margin-bottom: 0; max-width: 680px; }
        .bg-surface { background: var(--surface); }
        .bg-alternate { background: #EDE8DE; }

        /* ========== 列表卡片主体 ========== */
        .process-list { display: flex; flex-direction: column; gap: 24px; }
        .process-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-wrap: wrap;
        }
        .process-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .process-card-main {
            flex: 1 1 55%;
            padding: 28px 32px;
            min-width: 280px;
        }
        .process-card-side {
            flex: 1 1 35%;
            padding: 28px 32px;
            background: rgba(15, 61, 62, 0.03);
            border-left: 1px solid var(--line);
            min-width: 240px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 12px;
        }
        .process-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            margin-right: 12px;
        }
        .process-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .process-card p {
            color: var(--muted);
            font-size: 15px;
            margin-bottom: 0;
        }
        .process-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }
        .badge-soft {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(15, 61, 62, 0.08);
            color: var(--primary);
        }
        .badge-accent {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(200, 155, 90, 0.15);
            color: var(--accent-hover);
        }
        .indicator-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 0;
            border-bottom: 1px dashed var(--line);
        }
        .indicator-item:last-child { border-bottom: none; }
        .indicator-label { font-size: 13px; color: var(--muted); }
        .indicator-value {
            font-family: var(--font-mono);
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
        }

        /* ========== 筛选工具栏 ========== */
        .filter-bar {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 16px 20px;
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
            box-shadow: var(--shadow);
        }
        .filter-bar .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-right: 4px;
        }
        .filter-btn {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: var(--bg);
            color: var(--muted);
            border: 1px solid var(--line);
            transition: all var(--transition);
        }
        .filter-btn:hover { border-color: var(--accent); color: var(--primary); }
        .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ========== 子专题导览 ========== */
        .subtopic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .subtopic-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .subtopic-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .subtopic-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .subtopic-body { padding: 20px 20px 24px; }
        .subtopic-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .subtopic-body p {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 12px;
            line-height: 1.7;
        }
        .subtopic-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-hover);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ========== 条件对比板块 ========== */
        .compare-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .compare-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .compare-card.featured {
            border-color: var(--accent);
            box-shadow: 0 10px 30px rgba(200, 155, 90, 0.18);
        }
        .compare-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .compare-tag {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--accent);
            color: #1A1D1A;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
        }
        .compare-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .compare-list { list-style: none; padding: 0; margin: 0; }
        .compare-list li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid var(--line);
            font-size: 14px;
        }
        .compare-list li:last-child { border-bottom: none; }
        .compare-label { color: var(--muted); }
        .compare-value {
            font-family: var(--font-mono);
            font-weight: 600;
            color: var(--primary);
        }

        /* ========== 相关文章 ========== */
        .article-list {
            display: grid;
            gap: 16px;
        }
        .article-row {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 16px 20px;
            transition: all var(--transition);
        }
        .article-row:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
            transform: translateY(-1px);
        }
        .article-row img {
            width: 80px;
            height: 60px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .article-info { flex: 1; min-width: 0; }
        .article-info h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
            line-height: 1.5;
        }
        .article-info p {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .article-time {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--muted);
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ========== 风险提示 ========== */
        .risk-bar {
            background: rgba(181, 71, 47, 0.06);
            border: 1px solid rgba(181, 71, 47, 0.3);
            border-radius: var(--radius);
            padding: 20px 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .risk-icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
            color: var(--danger);
        }
        .risk-bar h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--danger);
            margin-bottom: 6px;
        }
        .risk-bar p {
            font-size: 14px;
            color: var(--text);
            margin-bottom: 0;
            line-height: 1.75;
        }

        /* ========== 底部CTA ========== */
        .cta-banner {
            background: var(--primary-dark);
            border-radius: var(--radius);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-banner-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-banner-text p {
            font-size: 15px;
            color: rgba(255,255,255,0.75);
            margin-bottom: 0;
        }
        .cta-banner .btn {
            flex-shrink: 0;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 24px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo { color: #fff; margin-bottom: 12px; }
        .footer-brand p { font-size: 13px; color: rgba(255,255,255,0.6); }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul { list-style: none; padding: 0; margin: 0; }
        .footer-col li { margin-bottom: 10px; }
        .footer-col a {
            color: rgba(255,255,255,0.65);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.15);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(255,255,255,0.45);
        }
        .footer-bottom .domain { font-family: var(--font-mono); }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .subtopic-grid { grid-template-columns: repeat(2, 1fr); }
            .compare-row { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .process-card-main, .process-card-side { flex: 1 1 100%; border-left: none; }
            .process-card-side { border-top: 1px solid var(--line); }
        }
        @media (max-width: 768px) {
            .main-nav { display: none; }
            .header-cta .btn-outline { display: none; }
            .hamburger { display: flex; }
            .section-head h2 { font-size: 24px; }
            .cat-hero h1 { font-size: 26px; }
            .subtopic-grid { grid-template-columns: 1fr; }
            .compare-row { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .cta-banner { flex-direction: column; align-items: flex-start; }
            .article-row { flex-wrap: wrap; }
            .article-row img { width: 100%; height: 140px; }
            .article-time { width: 100%; }
            .filter-bar { gap: 8px; }
        }
        @media (max-width: 640px) {
            .container { padding: 0 16px; }
            .cat-hero { padding: 40px 0 36px; }
            .cat-hero h1 { font-size: 22px; }
            .process-card-main, .process-card-side { padding: 20px; }
            section { padding: 40px 0; }
            .btn { padding: 10px 18px; font-size: 14px; }
            .risk-bar { flex-direction: column; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
        }

/* roulang page: category3 */
:root {
            --primary: #0F3D3E;
            --primary-dark: #0B2C2D;
            --accent: #C89B5A;
            --accent-hover: #B07F3E;
            --bg: #F5F2EB;
            --surface: #FFFFFF;
            --text: #1A1D1A;
            --muted: #66706A;
            --line: #E0D9CC;
            --danger: #B5472F;
            --success: #2F6B4F;
            --font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'DIN Alternate', 'Roboto Mono', monospace;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --radius: 14px;
            --shadow: 0 8px 24px rgba(15, 61, 62, 0.06);
            --shadow-hover: 0 14px 34px rgba(15, 61, 62, 0.12);
            --transition: 0.2s ease;
            --container-max: 1200px;
            --section-padding: 72px 0;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent-hover); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            height: 68px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: 0 4px 16px rgba(15, 61, 62, 0.08); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo-icon { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; color: var(--accent); }
        .logo-icon svg { width: 28px; height: 28px; }
        .main-nav { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover, .main-nav a.active { color: var(--primary); }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .header-cta { display: flex; align-items: center; gap: 12px; }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-body);
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--accent);
            color: #1A1D1A;
            border: 1px solid var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #1A1D1A;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(200, 155, 90, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: rgba(15, 61, 62, 0.05);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn:focus-visible {
            outline: 2px solid rgba(200, 155, 90, 0.6);
            outline-offset: 2px;
        }
        .hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; background: none; border: none; }
        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
            display: block;
        }

        /* ========== 移动端抽屉菜单 ========== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--surface);
            z-index: 999;
            padding: 32px 24px;
            overflow-y: auto;
        }
        .mobile-menu.open { display: block; }
        .mobile-menu ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 20px; }
        .mobile-menu a { font-size: 17px; font-weight: 500; color: var(--text); padding: 8px 0; display: block; }
        .mobile-menu a.active { color: var(--primary); font-weight: 700; }
        .mobile-menu .btn { width: 100%; margin-top: 16px; }

        /* ========== 分类页特有 ========== */
        .category-hero-section {
            background: linear-gradient(160deg, rgba(15, 61, 62, 0.06) 0%, rgba(245, 242, 235, 0.95) 60%);
            padding: 64px 0 52px;
            border-bottom: 1px solid var(--line);
        }
        .category-hero-section h1 {
            font-family: var(--font-title);
            font-size: 34px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 16px;
            line-height: 1.4;
        }
        .category-hero-section .intro-text {
            font-size: 16px;
            color: var(--muted);
            max-width: 720px;
            line-height: 1.8;
        }
        .category-hero-section .cover-wrap {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            margin-top: 24px;
        }
        .category-hero-section .cover-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .filter-toolbar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            padding: 16px 0;
            border-bottom: 1px solid var(--line);
        }
        .filter-toolbar .filter-label {
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
        }
        .filter-toolbar .filter-option {
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid var(--line);
            font-size: 13px;
            color: var(--muted);
            background: var(--surface);
            transition: all var(--transition);
            cursor: pointer;
        }
        .filter-toolbar .filter-option:hover,
        .filter-toolbar .filter-option.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .rate-card-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 28px;
        }
        .rate-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 24px 28px;
            display: flex;
            align-items: flex-start;
            gap: 28px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .rate-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .rate-card .card-icon {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            border-radius: 10px;
            background: rgba(15, 61, 62, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }
        .rate-card .card-icon svg { width: 26px; height: 26px; }
        .rate-card .card-body { flex: 1; }
        .rate-card .card-title-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }
        .rate-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0;
        }
        .rate-card .card-badge {
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 20px;
            background: rgba(200, 155, 90, 0.12);
            color: #8A6A3B;
            font-weight: 500;
            white-space: nowrap;
        }
        .rate-card .card-summary {
            font-size: 14px;
            color: var(--muted);
            margin: 0 0 12px;
            line-height: 1.7;
        }
        .rate-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .rate-card .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--muted);
        }
        .rate-card .meta-item .mono {
            font-family: var(--font-mono);
            color: var(--primary);
            font-weight: 600;
        }
        .rate-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 10px;
            transition: color var(--transition);
        }
        .rate-card .card-link:hover { color: var(--accent-hover); }

        .compare-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 28px;
        }
        .compare-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .compare-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .compare-card.featured {
            border-color: var(--accent);
            background: linear-gradient(180deg, rgba(200, 155, 90, 0.05) 0%, var(--surface) 40%);
        }
        .compare-card .compare-tag {
            display: inline-block;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 20px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .compare-card.featured .compare-tag {
            background: var(--accent);
            color: #1A1D1A;
        }
        .compare-card .compare-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 8px;
        }
        .compare-card .compare-desc {
            font-size: 14px;
            color: var(--muted);
            margin: 0 0 16px;
            line-height: 1.7;
        }
        .compare-card .compare-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 10px 0;
            border-bottom: 1px solid var(--line);
            font-size: 14px;
        }
        .compare-card .compare-item:last-child { border-bottom: none; }
        .compare-card .compare-item .label {
            font-size: 12px;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .compare-card .compare-item .value {
            font-family: var(--font-mono);
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
        }
        .compare-card .compare-item .value.accent { color: var(--accent-hover); }

        .sub-topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 28px;
        }
        .sub-topic-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: block;
            color: var(--text);
        }
        .sub-topic-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
            color: var(--text);
            transform: translateY(-2px);
        }
        .sub-topic-card .sub-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(15, 61, 62, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .sub-topic-card .sub-icon svg { width: 22px; height: 22px; }
        .sub-topic-card .sub-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 6px;
        }
        .sub-topic-card .sub-desc {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }

        .article-list-simple {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 24px;
        }
        .article-list-simple .article-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 16px 20px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 10px;
            transition: all var(--transition);
        }
        .article-list-simple .article-row:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow);
        }
        .article-list-simple .article-row .article-left {
            flex: 1;
            min-width: 0;
        }
        .article-list-simple .article-row .article-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-list-simple .article-row .article-desc {
            font-size: 13px;
            color: var(--muted);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-list-simple .article-row .article-time {
            font-size: 13px;
            color: var(--muted);
            font-family: var(--font-mono);
            white-space: nowrap;
        }

        .risk-strip {
            background: rgba(181, 71, 47, 0.06);
            border: 1px solid rgba(181, 71, 47, 0.25);
            border-radius: var(--radius);
            padding: 24px 28px;
            margin-top: 24px;
        }
        .risk-strip .risk-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--danger);
            margin: 0 0 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .risk-strip .risk-text {
            font-size: 14px;
            color: var(--text);
            margin: 0;
            line-height: 1.7;
        }

        .cta-banner {
            background: var(--primary-dark);
            border-radius: var(--radius);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 24px;
        }
        .cta-banner .cta-text {
            flex: 1;
            min-width: 240px;
        }
        .cta-banner .cta-title {
            font-size: 22px;
            font-weight: 700;
            color: #F5F2EB;
            margin: 0 0 8px;
        }
        .cta-banner .cta-desc {
            font-size: 14px;
            color: rgba(245, 242, 235, 0.75);
            margin: 0;
            line-height: 1.6;
        }
        .cta-banner .btn {
            flex-shrink: 0;
        }
        .cta-banner .btn-outline {
            border-color: var(--accent);
            color: var(--accent);
        }
        .cta-banner .btn-outline:hover {
            background: rgba(200, 155, 90, 0.1);
            border-color: var(--accent-hover);
            color: var(--accent-hover);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(245, 242, 235, 0.8);
            padding: 56px 0 24px;
            margin-top: 64px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .logo {
            color: #F5F2EB;
            font-size: 20px;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }
        .site-footer .footer-col h3 {
            font-size: 14px;
            font-weight: 700;
            color: #F5F2EB;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer .footer-col a {
            font-size: 14px;
            color: rgba(245, 242, 235, 0.65);
            transition: color var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(245, 242, 235, 0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
        }
        .site-footer .footer-bottom p {
            margin: 0;
        }
        .site-footer .footer-bottom .domain {
            font-family: var(--font-mono);
            color: rgba(245, 242, 235, 0.45);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .main-nav { gap: 16px; }
            .main-nav a { font-size: 14px; }
            .compare-grid { grid-template-columns: repeat(2, 1fr); }
            .sub-topic-grid { grid-template-columns: repeat(2, 1fr); }
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .hamburger { display: flex; }
            .main-nav, .header-cta .btn-outline { display: none; }
            .header-cta .btn-primary { display: none; }
            .header-cta { gap: 0; }
            .category-hero-section h1 { font-size: 28px; }
            .rate-card { flex-direction: column; gap: 16px; padding: 20px; }
            .compare-grid { grid-template-columns: 1fr; }
            .sub-topic-grid { grid-template-columns: 1fr; }
            .article-list-simple .article-row { flex-direction: column; align-items: flex-start; gap: 8px; }
            .cta-banner { flex-direction: column; text-align: center; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .filter-toolbar { overflow-x: auto; flex-wrap: nowrap; }
            .category-hero-section { padding: 44px 0 36px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .category-hero-section h1 { font-size: 24px; }
            .rate-card .card-title-row { flex-direction: column; align-items: flex-start; gap: 6px; }
            .rate-card .card-title { font-size: 16px; }
            .compare-card { padding: 20px; }
            .cta-banner { padding: 28px 20px; }
            .cta-banner .cta-title { font-size: 18px; }
        }

/* roulang page: category2 */
:root {
            --primary: #0F3D3E;
            --primary-dark: #0B2C2D;
            --accent: #C89B5A;
            --accent-hover: #B07F3E;
            --bg: #F5F2EB;
            --surface: #FFFFFF;
            --text: #1A1D1A;
            --muted: #66706A;
            --line: #E0D9CC;
            --danger: #B5472F;
            --success: #2F6B4F;
            --font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'DIN Alternate', 'Roboto Mono', monospace;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --radius: 14px;
            --shadow: 0 8px 24px rgba(15, 61, 62, 0.06);
            --shadow-hover: 0 14px 34px rgba(15, 61, 62, 0.12);
            --transition: 0.2s ease;
            --container-max: 1200px;
            --section-padding: 72px 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            height: 68px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(15, 61, 62, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
        }
        .logo-icon svg {
            width: 28px;
            height: 28px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-body);
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--accent);
            color: #1A1D1A;
            border: 1px solid var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #1A1D1A;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(200, 155, 90, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: rgba(15, 61, 62, 0.05);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn:focus-visible {
            outline: 2px solid rgba(200, 155, 90, 0.6);
            outline-offset: 2px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
            display: block;
        }
        /* ========== 移动端抽屉菜单 ========== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--surface);
            z-index: 999;
            padding: 32px 24px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mobile-menu li {
            margin-bottom: 20px;
        }
        .mobile-menu a {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            padding: 4px 0;
            display: block;
        }
        .mobile-menu a.active {
            color: var(--accent);
        }
        .mobile-menu .btn {
            width: 100%;
            margin-top: 16px;
        }
        /* ========== 分类头部 ========== */
        .category-hero {
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 56px 0 48px;
        }
        .category-hero .container {
            position: relative;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 20px;
            list-style: none;
            padding: 0;
        }
        .breadcrumb a {
            color: var(--primary);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent-hover);
        }
        .breadcrumb .sep {
            color: var(--line);
        }
        .category-hero h1 {
            font-family: var(--font-title);
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .category-hero .hero-desc {
            font-size: 16px;
            color: var(--muted);
            max-width: 820px;
            line-height: 1.9;
            margin-bottom: 0;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .hero-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(15, 61, 62, 0.06);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            border: 1px solid rgba(15, 61, 62, 0.12);
        }
        /* ========== 板块通用 ========== */
        section {
            padding: var(--section-padding);
        }
        section.alt-bg {
            background: var(--surface);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .section-heading {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-heading h2 {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-heading p {
            color: var(--muted);
            font-size: 15px;
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.8;
        }
        /* ========== 主体卡片列表 ========== */
        .asym-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 32px;
            display: flex;
            align-items: stretch;
            gap: 24px;
            transition: all var(--transition);
            margin-bottom: 20px;
        }
        .asym-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--accent);
        }
        .asym-card .card-icon {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(15, 61, 62, 0.06);
            color: var(--primary);
        }
        .asym-card .card-icon svg {
            width: 24px;
            height: 24px;
        }
        .asym-card .card-body {
            flex: 1;
        }
        .asym-card .card-body h3 {
            font-family: var(--font-title);
            font-size: 19px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .asym-card .card-body p {
            color: var(--muted);
            font-size: 15px;
            margin-bottom: 0;
            line-height: 1.75;
        }
        .asym-card .card-meta {
            display: flex;
            gap: 16px;
            align-items: center;
            flex-shrink: 0;
            min-width: 140px;
            justify-content: flex-end;
        }
        .asym-card .card-meta .metric {
            text-align: center;
        }
        .asym-card .card-meta .metric-value {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            display: block;
        }
        .asym-card .card-meta .metric-label {
            font-size: 13px;
            color: var(--muted);
        }
        /* ========== 筛选工具栏 ========== */
        .filter-bar {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
            box-shadow: var(--shadow);
        }
        .filter-bar .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--muted);
            margin-right: 4px;
        }
        .filter-btn {
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--muted);
            background: transparent;
            border: 1px solid var(--line);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--accent);
            color: var(--primary);
        }
        .filter-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        /* ========== 子专题导览 ========== */
        .subtopic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .subtopic-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 22px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: block;
            text-decoration: none;
        }
        .subtopic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--accent);
        }
        .subtopic-card img {
            width: 100%;
            height: 120px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 14px;
        }
        .subtopic-card h4 {
            font-family: var(--font-title);
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .subtopic-card p {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 0;
            line-height: 1.6;
        }
        /* ========== 数据对比板块 ========== */
        .metric-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            text-align: center;
        }
        .metric-card.featured {
            border-color: var(--accent);
            background: linear-gradient(180deg, rgba(200, 155, 90, 0.04) 0%, var(--surface) 60%);
        }
        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .metric-card .metric-icon {
            width: 44px;
            height: 44px;
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(15, 61, 62, 0.06);
            color: var(--primary);
        }
        .metric-card .metric-icon svg {
            width: 22px;
            height: 22px;
        }
        .metric-card .metric-number {
            font-family: var(--font-mono);
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            display: block;
            margin-bottom: 4px;
        }
        .metric-card .metric-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .metric-card .metric-desc {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
            margin-bottom: 0;
        }
        /* ========== 知识库列表 ========== */
        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .knowledge-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            text-decoration: none;
            display: block;
        }
        .knowledge-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--accent);
        }
        .knowledge-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .knowledge-card .kc-body {
            padding: 18px 20px 20px;
        }
        .knowledge-card .kc-body h4 {
            font-family: var(--font-title);
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .knowledge-card .kc-body p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.65;
            margin-bottom: 8px;
        }
        .knowledge-card .kc-meta {
            font-size: 12px;
            color: var(--muted);
            display: flex;
            gap: 12px;
        }
        /* ========== 风险提示 ========== */
        .risk-strip {
            background: rgba(181, 71, 47, 0.04);
            border: 1px solid rgba(181, 71, 47, 0.25);
            border-radius: var(--radius);
            padding: 28px 32px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }
        .risk-strip .risk-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--danger);
        }
        .risk-strip .risk-icon svg {
            width: 28px;
            height: 28px;
        }
        .risk-strip h3 {
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 600;
            color: var(--danger);
            margin-bottom: 8px;
        }
        .risk-strip p {
            color: var(--text);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 0;
        }
        /* ========== CTA 横幅 ========== */
        .cta-banner {
            background: var(--primary-dark);
            border-radius: var(--radius);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            color: #fff;
        }
        .cta-banner .cta-text h3 {
            font-family: var(--font-title);
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }
        .cta-banner .cta-text p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            margin-bottom: 0;
        }
        .cta-banner .btn-primary {
            background: var(--accent);
            border-color: var(--accent);
            color: #1A1D1A;
            flex-shrink: 0;
        }
        .cta-banner .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
        }
        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.72);
            padding: 56px 0 32px;
            margin-top: 0;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.72);
            transition: color var(--transition);
        }
        .site-footer a:hover {
            color: var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 16px;
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 0;
        }
        .footer-col h3 {
            font-family: var(--font-title);
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col li a {
            font-size: 14px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 13px;
            margin-bottom: 0;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom .domain {
            font-family: var(--font-mono);
            font-size: 12px;
        }
        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .subtopic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .knowledge-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .asym-card .card-meta {
                min-width: 110px;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-cta .btn-outline {
                display: none;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .section-heading h2 {
                font-size: 22px;
            }
            .asym-card {
                flex-direction: column;
                gap: 16px;
                padding: 20px;
            }
            .asym-card .card-meta {
                flex-direction: row;
                justify-content: flex-start;
                min-width: auto;
                flex-wrap: wrap;
                gap: 20px;
            }
            .asym-card .card-meta .metric {
                text-align: left;
            }
            .metric-grid {
                grid-template-columns: 1fr;
            }
            .knowledge-grid {
                grid-template-columns: 1fr;
            }
            .subtopic-grid {
                grid-template-columns: 1fr;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
            }
            .cta-banner .btn-primary {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            section {
                padding: 48px 0;
            }
            .site-header {
                height: 60px;
            }
            .mobile-menu {
                top: 60px;
            }
        }