/* roulang page: index */
:root {
            --primary: #1d4ed8;
            --primary-dark: #1e3a8a;
            --primary-light: #2563eb;
            --text-main: #111827;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --bg-page: #f8fafc;
            --bg-card: #ffffff;
            --border-color: #e5e7eb;
            --border-light: #f3f4f6;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-w: 1240px;
        }

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

        body {
            font-family: var(--font-family);
            background-color: var(--bg-page);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, opacity 0.2s ease;
        }

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

        .container {
            width: 100%;
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部黑条 */
        .top-bar {
            background-color: #0b1528;
            color: #94a3b8;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 头部主导航 */
        .site-header {
            background-color: #ffffff;
            border-bottom: 1px solid var(--border-color);
        }

        .header-main {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0 20px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 24px;
            color: #0f172a;
            letter-spacing: -0.5px;
        }

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
        }

        .brand-slogan {
            font-size: 13px;
            color: var(--text-muted);
            border-left: 1px solid #cbd5e1;
            padding-left: 16px;
            margin-left: 4px;
        }

        .search-box-wrap {
            display: flex;
            align-items: center;
            background: #f1f5f9;
            border: 1px solid #e2e8f0;
            border-radius: 6px;
            padding: 8px 16px;
            width: 360px;
            justify-content: space-between;
        }

        .search-box-wrap input {
            border: none;
            background: transparent;
            outline: none;
            width: 90%;
            font-size: 13px;
            color: var(--text-main);
        }

        .search-box-wrap .search-icon {
            color: #64748b;
            font-size: 14px;
            cursor: pointer;
        }

        /* 二级导航栏 */
        .nav-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 0 16px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 32px;
        }

        .nav-links li a {
            font-size: 15px;
            font-weight: 500;
            color: #334155;
            padding-bottom: 8px;
            position: relative;
        }

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

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: -16px;
            left: 0;
            right: 0;
            height: 2px;
            background-color: var(--primary);
        }

        .nav-extra a {
            font-size: 14px;
            color: #475569;
            font-weight: 500;
        }

        .nav-extra a:hover {
            color: var(--primary);
        }

        /* 顶部首屏特色条 (参考图顶部卡片导航栏) */
        .hero-banner-strip {
            margin: 28px 0;
        }

        .strip-grid {
            display: grid;
            grid-template-columns: 2fr 1.5fr 1.5fr 1.5fr;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            overflow: hidden;
        }

        .strip-col {
            padding: 24px;
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            background: #fff;
            transition: background-color 0.2s ease;
        }

        .strip-col:last-child {
            border-right: none;
        }

        .strip-col.highlight-dark {
            background-color: #0b172a;
            color: #fff;
        }

        .strip-col.highlight-dark .tag-pill {
            background: #1e293b;
            color: #38bdf8;
        }

        .strip-col.highlight-dark h1 {
            color: #ffffff;
        }

        .strip-col.highlight-dark p {
            color: #94a3b8;
        }

        .strip-col .tag-pill {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .strip-col h1, .strip-col h2 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.3;
        }

        .strip-col p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .strip-col .col-number {
            font-size: 12px;
            font-weight: 700;
            color: #94a3b8;
            margin-bottom: 4px;
        }

        .strip-col .col-arrow {
            position: absolute;
            right: 20px;
            top: 24px;
            font-size: 14px;
            color: #94a3b8;
        }

        .strip-col.btn-col {
            background: #1e3a8a;
            color: #fff;
            display: flex;
            flex-direction: row;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
        }

        .strip-col.btn-col:hover {
            background: var(--primary);
        }

        .strip-col.btn-col h2 {
            color: #fff;
            margin-bottom: 0;
            font-size: 17px;
        }

        /* 核心图文两列资讯区 (完全还原参考图卡片与列表排列) */
        .feed-section {
            padding: 10px 0 40px;
        }

        .feed-two-cols {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .col-feed-box {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 24px;
            display: flex;
            flex-direction: column;
        }

        .box-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-light);
        }

        .head-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .box-title-indicator {
            width: 4px;
            height: 18px;
            background-color: var(--primary);
            border-radius: 2px;
            display: inline-block;
        }

        .head-left h3 {
            font-size: 18px;
            font-weight: 700;
            color: #0f172a;
        }

        .box-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .head-action {
            color: #94a3b8;
            font-size: 14px;
        }

        /* 视觉海报大卡 */
        .feature-card {
            position: relative;
            height: 240px;
            border-radius: 6px;
            overflow: hidden;
            margin-bottom: 20px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 24px;
            color: #fff;
            background-color: #0f172a;
        }

        .feature-card img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 1;
            filter: brightness(0.65);
            transition: transform 0.4s ease;
        }

        .feature-card:hover img {
            transform: scale(1.03);
        }

        .feature-card-content {
            position: relative;
            z-index: 2;
        }

        .feature-card-content h4 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            color: #ffffff;
            margin-bottom: 12px;
            text-shadow: 0 1px 3px rgba(0,0,0,0.5);
        }

        .feature-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #e2e8f0;
        }

        .feature-card-meta .controls {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .ctrl-btn {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            backdrop-filter: blur(4px);
        }

        /* 列表项 */
        .feed-list {
            list-style: none;
            display: flex;
            flex-direction: column;
        }

        .feed-list-item {
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .feed-list-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .item-main-link {
            font-size: 15px;
            font-weight: 600;
            color: #1e293b;
            line-height: 1.4;
        }

        .item-main-link:hover {
            color: var(--primary);
        }

        .item-sub-meta {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-light);
        }

        .more-row {
            margin-top: 20px;
            padding-top: 14px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            font-weight: 600;
            color: #3b82f6;
        }

        .more-row:hover {
            color: var(--primary-dark);
        }

        /* 底部权威资讯说明 */
        .section-disclaimer {
            background-color: #f1f5f9;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 30px 0;
            margin-top: 30px;
        }

        .disclaimer-wrap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .disclaimer-card {
            background: #ffffff;
            padding: 20px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
        }

        .disclaimer-card h5 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #1e293b;
        }

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

        /* 页脚区域 */
        .site-footer {
            background-color: #ffffff;
            padding: 48px 0 24px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 800;
            color: #0f172a;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand p {
            max-width: 420px;
            line-height: 1.7;
            color: #64748b;
        }

        .footer-col h6 {
            font-size: 14px;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 16px;
        }

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

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            font-size: 12px;
            color: #94a3b8;
        }

        /* 移动端与平板响应式适配 */
        @media (max-width: 1024px) {
            .strip-grid {
                grid-template-columns: 1fr 1fr;
            }
            .strip-col {
                border-bottom: 1px solid var(--border-color);
            }
            .feed-two-cols {
                grid-template-columns: 1fr;
            }
            .disclaimer-wrap {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }
            .header-main {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .brand-slogan {
                display: none;
            }
            .search-box-wrap {
                width: 100%;
            }
            .nav-bar {
                overflow-x: auto;
                white-space: nowrap;
                padding-bottom: 10px;
            }
            .nav-links {
                gap: 20px;
            }
            .strip-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .col-feed-box {
                padding: 16px;
            }
            .feature-card {
                height: 190px;
                padding: 16px;
            }
            .feature-card-content h4 {
                font-size: 16px;
            }
        }

/* roulang page: category1 */
:root {
      --primary: #1d4ed8;
      --primary-dark: #1e3a8a;
      --primary-light: #2563eb;
      --text-main: #111827;
      --text-muted: #6b7280;
      --text-light: #9ca3af;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e5e7eb;
      --border-light: #f3f4f6;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --container-w: 1240px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-family);
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, opacity 0.2s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: var(--container-w);
      margin: 0 auto;
      padding: 0 20px;
    }
    
    /* Header */
    .site-header {
      background-color: #ffffff;
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .header-main {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 0 16px;
    }
    .logo-area {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 24px;
      color: #0f172a;
      letter-spacing: -0.5px;
    }
    .brand-logo .logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
    }
    .brand-slogan {
      font-size: 13px;
      color: var(--text-muted);
      border-left: 1px solid #cbd5e1;
      padding-left: 16px;
      margin-left: 4px;
    }
    .search-box-wrap {
      display: flex;
      align-items: center;
      background: #f1f5f9;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      padding: 8px 16px;
      width: 340px;
      justify-content: space-between;
    }
    .search-box-wrap input {
      border: none;
      background: transparent;
      outline: none;
      width: 90%;
      font-size: 13px;
      color: var(--text-main);
    }
    .search-box-wrap .search-icon {
      color: #64748b;
      font-size: 14px;
      cursor: pointer;
    }
    .nav-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0 0 14px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 32px;
    }
    .nav-links li a {
      font-size: 15px;
      font-weight: 500;
      color: #334155;
      padding-bottom: 8px;
      position: relative;
    }
    .nav-links li a.active,
    .nav-links li a:hover {
      color: var(--primary);
    }
    .nav-links li a.active::after {
      content: '';
      position: absolute;
      bottom: -14px;
      left: 0;
      right: 0;
      height: 2px;
      background-color: var(--primary);
    }
    .nav-extra a {
      font-size: 14px;
      color: #475569;
      font-weight: 500;
    }
    .nav-extra a:hover {
      color: var(--primary);
    }

    /* Breadcrumbs */
    .breadcrumb-nav {
      padding: 16px 0;
      font-size: 13px;
      color: var(--text-muted);
    }
    .breadcrumb-nav a {
      color: var(--text-muted);
    }
    .breadcrumb-nav a:hover {
      color: var(--primary);
    }
    .breadcrumb-nav span {
      margin: 0 8px;
      color: var(--text-light);
    }

    /* Category Hero */
    .cat-hero {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      color: #ffffff;
      border-radius: 8px;
      padding: 48px;
      margin-bottom: 36px;
      position: relative;
      overflow: hidden;
    }
    .cat-hero::after {
      content: '';
      position: absolute;
      top: -50%;
      right: -20%;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(29, 78, 216, 0.25) 0%, rgba(29, 78, 216, 0) 70%);
      pointer-events: none;
    }
    .cat-hero-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.5px;
      color: #38bdf8;
      background: rgba(56, 189, 248, 0.1);
      border: 1px solid rgba(56, 189, 248, 0.2);
      padding: 4px 12px;
      border-radius: 4px;
      margin-bottom: 16px;
      text-transform: uppercase;
    }
    .cat-hero h1 {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
      color: #ffffff;
    }
    .cat-hero p {
      font-size: 15px;
      line-height: 1.8;
      color: #cbd5e1;
      max-width: 860px;
    }

    /* Rules Metric Grid */
    .rules-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 48px;
    }
    .rule-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 24px;
      box-shadow: 0 1px 3px rgba(0,0,0,0.02);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .rule-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    }
    .rule-card .num-badge {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
      display: inline-block;
    }
    .rule-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 10px;
    }
    .rule-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Detailed Breakdown Section */
    .section-block {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 36px;
      margin-bottom: 36px;
    }
    .section-head {
      margin-bottom: 24px;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 16px;
    }
    .section-head h2 {
      font-size: 22px;
      font-weight: 700;
      color: #0f172a;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .section-head h2::before {
      content: '';
      display: block;
      width: 4px;
      height: 18px;
      background-color: var(--primary);
      border-radius: 2px;
    }
    .section-head p {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 6px;
    }

    /* Rule Table */
    .rule-table-wrap {
      overflow-x: auto;
      margin-top: 16px;
    }
    .rule-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 13px;
    }
    .rule-table th, .rule-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
    }
    .rule-table th {
      background-color: #f8fafc;
      color: #334155;
      font-weight: 600;
    }
    .rule-table tr:hover td {
      background-color: #f1f5f9;
    }
    .tag-status {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 11px;
      font-weight: 600;
    }
    .tag-blue { background: #dbeafe; color: #1e40af; }
    .tag-amber { background: #fef3c7; color: #92400e; }
    .tag-red { background: #fee2e2; color: #991b1b; }

    /* Workflow Columns */
    .workflow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }
    .step-box {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      padding: 20px;
      position: relative;
    }
    .step-index {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-light);
      margin-bottom: 8px;
    }
    .step-box h4 {
      font-size: 15px;
      font-weight: 600;
      color: #0f172a;
      margin-bottom: 6px;
    }
    .step-box p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* CMS Article Feed */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 20px;
    }
    .news-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .news-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(0,0,0,0.06);
    }
    .news-content {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-tag {
      font-size: 11px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 15px;
      font-weight: 700;
      color: #0f172a;
      line-height: 1.4;
      margin-bottom: 10px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .news-desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .news-date {
      font-size: 11px;
      color: var(--text-light);
    }

    /* FAQ Section */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 20px;
    }
    .faq-item {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      padding: 20px;
    }
    .faq-q {
      font-size: 15px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .faq-a {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Risk CTA Banner */
    .risk-banner {
      background: #eff6ff;
      border: 1px solid #bfdbfe;
      border-radius: 8px;
      padding: 28px 36px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 48px;
    }
    .risk-banner-text h3 {
      font-size: 18px;
      font-weight: 700;
      color: #1e3a8a;
      margin-bottom: 6px;
    }
    .risk-banner-text p {
      font-size: 13px;
      color: #3b82f6;
    }
    .risk-btn {
      background: var(--primary);
      color: #ffffff;
      font-size: 13px;
      font-weight: 600;
      padding: 10px 20px;
      border-radius: 6px;
      white-space: nowrap;
      transition: background-color 0.2s ease;
    }
    .risk-btn:hover {
      background: var(--primary-dark);
      color: #ffffff;
    }

    /* Footer */
    .site-footer {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 24px;
      margin-top: 60px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 36px;
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 800;
      color: #0f172a;
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
    }
    .footer-brand p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 440px;
    }
    .footer-col h6 {
      font-size: 14px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 16px;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col ul li a {
      font-size: 13px;
      color: var(--text-muted);
    }
    .footer-col ul li a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-light);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-light);
      flex-wrap: wrap;
      gap: 12px;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .rules-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .header-main {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .brand-slogan {
        display: none;
      }
      .search-box-wrap {
        width: 100%;
      }
      .nav-links {
        overflow-x: auto;
        width: 100%;
        padding-bottom: 4px;
        gap: 20px;
      }
      .nav-extra {
        display: none;
      }
      .cat-hero {
        padding: 28px 20px;
      }
      .cat-hero h1 {
        font-size: 24px;
      }
      .rules-grid, .workflow-steps, .articles-grid, .faq-grid {
        grid-template-columns: 1fr;
      }
      .risk-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }
      .footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

/* roulang page: article */
:root {
  --primary: #1d4ed8;
  --primary-dark: #1e3a8a;
  --primary-light: #2563eb;
  --text-main: #111827;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e5e7eb;
  --border-light: #f3f4f6;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container-w: 1240px;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: var(--font-family);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
}
/* 头部主导航 */
.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
}
.header-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0 20px;
}
.logo-area {
  display: flex;
  align-items: center;
  gap: 16px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 24px;
  color: #0f172a;
  letter-spacing: -0.5px;
}
.brand-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
}
.brand-slogan {
  font-size: 13px;
  color: var(--text-muted);
  border-left: 1px solid #cbd5e1;
  padding-left: 16px;
  margin-left: 4px;
}
.search-box-wrap {
  display: flex;
  align-items: center;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 8px 16px;
  width: 360px;
  justify-content: space-between;
}
.search-box-wrap input {
  border: none;
  background: transparent;
  outline: none;
  width: 90%;
  font-size: 13px;
  color: var(--text-main);
}
.search-box-wrap .search-icon {
  color: #64748b;
  font-size: 14px;
}
.nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 0 16px;
}
.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
}
.nav-links li a {
  font-size: 15px;
  font-weight: 500;
  color: #334155;
  padding-bottom: 8px;
  position: relative;
}
.nav-links li a:hover,
.nav-links li a.active {
  color: var(--primary);
}
.nav-links li a.active::after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--primary);
}
.nav-extra a {
  font-size: 14px;
  color: #475569;
  font-weight: 500;
}
.nav-extra a:hover {
  color: var(--primary);
}

/* 面包屑 */
.article-crumb-bar {
  background: #f1f5f9;
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-muted);
}
.article-crumb-bar .container {
  display: flex;
  align-items: center;
  gap: 8px;
}
.article-crumb-bar a:hover {
  color: var(--primary);
}
.crumb-separator {
  color: #cbd5e1;
}

/* 文章主体布局 */
.article-main-wrap {
  padding: 36px 0 60px;
}
.article-layout-grid {
  display: grid;
  grid-template-columns: minmax(0, 840px) 340px;
  gap: 36px;
  align-items: start;
}

/* 核心文章容器 */
.article-sheet {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 40px;
}
.article-header {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 24px;
  margin-bottom: 28px;
}
.article-badge-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.article-cat-tag {
  background: #eff6ff;
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
}
.article-tplus-flag {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  color: #475569;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
}
.article-header h1 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.35;
  color: #0f172a;
  margin-bottom: 18px;
  letter-spacing: -0.3px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  font-size: 13px;
  color: var(--text-muted);
}
.article-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}
.meta-dot {
  width: 4px;
  height: 4px;
  background: #cbd5e1;
  border-radius: 50%;
}

/* 导读提要框 */
.article-summary-box {
  background: #f8fafc;
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  border-radius: 0 6px 6px 0;
  margin-bottom: 30px;
  color: #334155;
  font-size: 14px;
  line-height: 1.7;
}

/* 题图 */
.article-hero-media {
  margin-bottom: 32px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border-light);
}
.article-hero-media img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

/* 正文样式 */
.article-typography {
  font-size: 16px;
  line-height: 1.85;
  color: #1f2937;
}
.article-typography p {
  margin-bottom: 20px;
}
.article-typography h2 {
  font-size: 22px;
  font-weight: 700;
  color: #0f172a;
  margin: 36px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid #f1f5f9;
}
.article-typography h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1e293b;
  margin: 28px 0 12px;
}
.article-typography ul,
.article-typography ol {
  margin-bottom: 24px;
  padding-left: 24px;
}
.article-typography li {
  margin-bottom: 8px;
}
.article-typography blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: #f8fafc;
  border-left: 3px solid #94a3b8;
  color: #475569;
  font-style: italic;
}
.article-typography img {
  border-radius: 6px;
  margin: 24px 0;
}

/* 404状态 */
.article-not-found {
  padding: 80px 20px;
  text-align: center;
}
.not-found-code {
  font-size: 48px;
  font-weight: 800;
  color: #94a3b8;
  margin-bottom: 12px;
}
.not-found-text {
  font-size: 18px;
  color: #475569;
  margin-bottom: 24px;
}
.btn-back-home {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #ffffff;
  padding: 10px 24px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 14px;
}
.btn-back-home:hover {
  background: var(--primary-dark);
}

/* 侧边栏 */
.sidebar-panel {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.side-widget {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
}
.widget-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border-light);
}
.widget-title {
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
}
.widget-tag {
  font-size: 11px;
  color: var(--text-muted);
  background: #f1f5f9;
  padding: 2px 8px;
  border-radius: 4px;
}

/* 风险警示卡 */
.risk-notice-card {
  background: linear-gradient(135deg, #0b172a, #1e3a8a);
  color: #ffffff;
  border-radius: 8px;
  padding: 24px;
}
.risk-notice-card h5 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #f8fafc;
}
.risk-notice-card p {
  font-size: 13px;
  color: #cbd5e1;
  line-height: 1.6;
  margin-bottom: 16px;
}
.risk-action-link {
  display: inline-block;
  font-size: 12px;
  color: #93c5fd;
  font-weight: 600;
}
.risk-action-link:hover {
  color: #ffffff;
}

/* 侧边速览图文列表 */
.side-feature-block {
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 16px;
  position: relative;
}
.side-feature-block img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}
.side-feature-title {
  font-size: 13px;
  font-weight: 600;
  margin-top: 8px;
  line-height: 1.4;
  color: #1e293b;
}
.side-feature-title:hover {
  color: var(--primary);
}

.side-rule-list {
  list-style: none;
}
.side-rule-list li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--border-light);
  font-size: 13px;
  color: #475569;
  display: flex;
  justify-content: space-between;
}
.side-rule-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.side-rule-list span.rule-name {
  color: #1e293b;
  font-weight: 500;
}

/* 页脚 */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 60px 0 30px;
  margin-top: 40px;
  border-top: 1px solid #1e293b;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #1e293b;
}
.footer-brand h4 {
  font-size: 20px;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  max-width: 440px;
}
.footer-col h6 {
  font-size: 14px;
  color: #f8fafc;
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 13px;
  color: #94a3b8;
}
.footer-col ul li a:hover {
  color: #ffffff;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 12px;
  color: #64748b;
  flex-wrap: wrap;
  gap: 12px;
}

/* 响应式样式 */
@media (max-width: 1024px) {
  .article-layout-grid {
    grid-template-columns: 1fr;
  }
  .article-sheet {
    padding: 30px;
  }
}
@media (max-width: 768px) {
  .header-main {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
  }
  .search-box-wrap {
    width: 100%;
  }
  .nav-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .nav-links {
    gap: 16px;
    overflow-x: auto;
    width: 100%;
    padding-bottom: 8px;
  }
  .article-header h1 {
    font-size: 22px;
  }
  .article-sheet {
    padding: 20px 16px;
  }
  .article-hero-media img {
    height: 220px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
@media (max-width: 520px) {
  .brand-logo {
    font-size: 20px;
  }
  .brand-slogan {
    display: none;
  }
  .article-meta {
    gap: 10px;
    font-size: 12px;
  }
}