/* roulang page: index */
:root {
      --primary-blue: #1d5cb8;
      --primary-dark: #0f346c;
      --accent-blue: #2563eb;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --text-light: #94a3b8;
    }
    
    * { box-sizing: border-box; }
    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-page);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, opacity 0.2s ease;
    }
    a:hover, a:focus {
      color: var(--accent-blue);
      text-decoration: none;
    }

    /* 顶部细边条 */
    .top-utility-bar {
      background-color: var(--primary-dark);
      color: #cbd5e1;
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .top-utility-bar .grid-x {
      align-items: center;
      justify-content: space-between;
    }

    /* 品牌主头部 */
    .main-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 18px 0;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .brand-logo-badge {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, var(--primary-blue), #3b82f6);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      font-size: 22px;
      font-weight: 800;
      box-shadow: 0 4px 10px rgba(29, 92, 184, 0.25);
    }
    .brand-titles h1 {
      font-size: 22px;
      font-weight: 800;
      margin: 0;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .brand-titles span {
      font-size: 11px;
      color: var(--text-muted);
      letter-spacing: 1px;
      text-transform: uppercase;
      display: block;
      margin-top: 2px;
    }
    .brand-slogan-col {
      display: flex;
      align-items: center;
      font-size: 13px;
      color: var(--text-muted);
      border-left: 1px solid #e2e8f0;
      padding-left: 20px;
      margin-left: 10px;
    }
    .search-mockup {
      display: flex;
      align-items: center;
      background: #f1f5f9;
      border: 1px solid #cbd5e1;
      border-radius: 6px;
      padding: 6px 14px;
      width: 100%;
      max-width: 380px;
      margin-left: auto;
    }
    .search-mockup input {
      border: none;
      background: transparent;
      box-shadow: none;
      margin: 0;
      padding: 0 8px;
      font-size: 13px;
      color: var(--text-main);
      height: auto;
    }
    .search-mockup input:focus {
      background: transparent;
      border: none;
      box-shadow: none;
    }
    .search-mockup .search-arrow {
      color: var(--text-muted);
      font-size: 14px;
      margin-left: auto;
    }

    /* 主导航 */
    .primary-navigation-bar {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .nav-links li a {
      display: inline-block;
      padding: 16px 0;
      font-size: 15px;
      font-weight: 500;
      color: #334155;
      position: relative;
    }
    .nav-links li a.active,
    .nav-links li a:hover {
      color: var(--primary-blue);
    }
    .nav-links li a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 3px;
      background-color: var(--primary-blue);
      border-radius: 2px 2px 0 0;
    }
    .nav-right-link {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 顶部频道矩阵 / 业务入口栏 (跟参考图完全一致) */
    .channel-strip-section {
      padding: 24px 0 10px;
    }
    .channel-card-grid {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      display: grid;
      grid-template-columns: 240px 1fr 1fr 120px;
      align-items: stretch;
      box-shadow: 0 1px 3px rgba(0,0,0,0.02);
      overflow: hidden;
    }
    .channel-head-box {
      background: #f8fafc;
      padding: 22px 24px;
      border-right: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .channel-head-box .badge-tag {
      background: var(--primary-dark);
      color: #fff;
      font-size: 11px;
      font-weight: 600;
      padding: 4px 8px;
      border-radius: 4px;
      display: inline-block;
      width: fit-content;
      margin-bottom: 8px;
      letter-spacing: 0.5px;
    }
    .channel-head-box h2 {
      font-size: 18px;
      font-weight: 700;
      margin: 0;
      color: var(--text-main);
    }
    .channel-cell {
      padding: 20px 24px;
      border-right: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: center;
      position: relative;
      background: #fff;
      transition: background 0.2s ease;
    }
    .channel-cell:hover {
      background: #f1f5f9;
    }
    .channel-cell .meta-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 4px;
    }
    .channel-cell .idx {
      font-size: 12px;
      font-weight: 700;
      color: var(--text-light);
      font-family: monospace;
    }
    .channel-cell .cell-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .channel-cell .cell-desc {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 4px;
    }
    .channel-action-box {
      background: var(--primary-blue);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s ease;
    }
    .channel-action-box:hover {
      background: var(--primary-dark);
      color: #fff;
    }

    /* 核心分栏资讯内容区 */
    .market-columns-section {
      padding: 20px 0 50px;
    }
    .news-column-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 28px 26px 20px;
      height: 100%;
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
      display: flex;
      flex-direction: column;
    }
    .news-column-header {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      border-bottom: 2px solid #f1f5f9;
      padding-bottom: 14px;
      margin-bottom: 18px;
    }
    .news-column-header .title-wrap {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .news-column-header .accent-bar {
      width: 4px;
      height: 20px;
      background: var(--primary-blue);
      border-radius: 2px;
      display: inline-block;
    }
    .news-column-header h3 {
      font-size: 20px;
      font-weight: 700;
      margin: 0;
      color: var(--text-main);
    }
    .news-column-header .col-subtext {
      font-size: 12px;
      color: var(--text-muted);
      margin-left: 12px;
    }
    .news-column-header .link-arrow {
      color: var(--text-muted);
      font-size: 16px;
    }

    /* 轮播大图/头条推荐区 (严格跟参考图高精还原) */
    .focus-hero-card {
      position: relative;
      border-radius: 6px;
      overflow: hidden;
      margin-bottom: 24px;
      height: 240px;
      background: #0f172a;
    }
    .focus-hero-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.75;
      transition: transform 0.3s ease;
    }
    .focus-hero-card:hover img {
      transform: scale(1.03);
    }
    .focus-hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.4) 60%, transparent 100%);
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 24px;
      color: #fff;
    }
    .focus-hero-title {
      font-size: 21px;
      font-weight: 700;
      line-height: 1.35;
      margin-bottom: 14px;
      color: #ffffff;
      text-shadow: 0 1px 3px rgba(0,0,0,0.5);
    }
    .focus-hero-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid rgba(255,255,255,0.2);
      padding-top: 10px;
      font-size: 11px;
      color: #cbd5e1;
    }
    .slider-dots {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .slider-dots span {
      width: 24px;
      height: 2px;
      background: rgba(255,255,255,0.4);
      display: inline-block;
    }
    .slider-dots span.active {
      background: #ffffff;
    }
    .slider-controls {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .slider-controls button {
      background: rgba(255,255,255,0.15);
      border: none;
      color: #fff;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      font-size: 10px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* 资讯列表条目 */
    .article-listing-box {
      display: flex;
      flex-direction: column;
      gap: 16px;
      flex-grow: 1;
    }
    .article-item-row {
      border-bottom: 1px solid #f1f5f9;
      padding-bottom: 14px;
    }
    .article-item-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .article-item-row a.item-title {
      font-size: 15px;
      font-weight: 600;
      color: #1e293b;
      line-height: 1.45;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 6px;
    }
    .article-item-row a.item-title:hover {
      color: var(--primary-blue);
    }
    .article-meta-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-light);
    }
    .column-more-link {
      margin-top: 24px;
      padding-top: 14px;
      border-top: 1px solid #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-blue);
    }
    .column-more-link:hover {
      color: var(--primary-dark);
    }

    /* 品牌专栏与研究模块 (补充与拓展内容) */
    .brand-insight-section {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 44px 0;
      margin-bottom: 40px;
    }
    .insight-card {
      border: 1px solid #f1f5f9;
      border-radius: 6px;
      padding: 24px;
      background: #f8fafc;
      transition: all 0.2s ease;
      height: 100%;
    }
    .insight-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.04);
      background: #ffffff;
      border-color: #cbd5e1;
    }
    .insight-tag {
      font-size: 11px;
      font-weight: 700;
      color: var(--primary-blue);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 8px;
    }
    .insight-card h4 {
      font-size: 16px;
      font-weight: 700;
      margin: 0 0 8px;
      color: var(--text-main);
    }
    .insight-card p {
      font-size: 13px;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.6;
    }

    /* 底部统一页脚 */
    .main-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 24px;
      color: #64748b;
    }
    .footer-brand h4 {
      font-size: 18px;
      font-weight: 800;
      color: var(--primary-dark);
      margin: 0 0 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.7;
      color: var(--text-muted);
      margin-bottom: 18px;
      max-width: 440px;
    }
    .footer-nav-col h5 {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a {
      font-size: 13px;
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--primary-blue);
    }
    .footer-legal-bar {
      margin-top: 36px;
      padding-top: 20px;
      border-top: 1px solid #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-light);
    }

    /* 响应式调整 (1024 / 768 / 520) */
    @media screen and (max-width: 1024px) {
      .channel-card-grid {
        grid-template-columns: 1fr 1fr;
      }
      .channel-head-box {
        grid-column: span 2;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .channel-action-box {
        grid-column: span 2;
        padding: 14px;
      }
      .brand-slogan-col {
        display: none;
      }
    }
    @media screen and (max-width: 768px) {
      .search-mockup {
        display: none;
      }
      .nav-links {
        gap: 16px;
        overflow-x: auto;
        white-space: nowrap;
        padding: 6px 0;
      }
      .nav-links li a {
        padding: 10px 0;
        font-size: 14px;
      }
      .news-column-card {
        margin-bottom: 24px;
      }
      .channel-card-grid {
        grid-template-columns: 1fr;
      }
      .channel-head-box, .channel-action-box {
        grid-column: span 1;
      }
      .channel-cell {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .footer-legal-bar {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }
    @media screen and (max-width: 520px) {
      .focus-hero-card {
        height: 190px;
      }
      .focus-hero-title {
        font-size: 17px;
      }
      .brand-titles h1 {
        font-size: 18px;
      }
    }

/* roulang page: article */
:root {
        --primary-blue: #1d5cb8;
        --primary-dark: #0f346c;
        --accent-blue: #2563eb;
        --bg-page: #f8fafc;
        --bg-card: #ffffff;
        --border-color: #e2e8f0;
        --text-main: #0f172a;
        --text-muted: #64748b;
        --text-light: #94a3b8;
    }
    body {
        margin: 0;
        padding: 0;
        background-color: var(--bg-page);
        color: var(--text-main);
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        line-height: 1.6;
        -webkit-font-smoothing: antialiased;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.2s ease, opacity 0.2s ease;
    }
    a:hover, a:focus {
        color: var(--accent-blue);
        text-decoration: none;
    }
    .main-header {
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 0;
    }
    .brand-wrap {
        display: flex;
        align-items: center;
        gap: 16px;
    }
    .brand-logo-badge {
        width: 44px;
        height: 44px;
        background: linear-gradient(135deg, var(--primary-blue), #3b82f6);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 8px;
        font-size: 22px;
        font-weight: 800;
        box-shadow: 0 4px 10px rgba(29, 92, 184, 0.25);
    }
    .brand-titles h1, .brand-titles .brand-name-text {
        font-size: 22px;
        font-weight: 800;
        margin: 0;
        color: var(--primary-dark);
        letter-spacing: -0.5px;
        line-height: 1.2;
    }
    .brand-titles span {
        font-size: 11px;
        color: var(--text-muted);
        letter-spacing: 1px;
        text-transform: uppercase;
        display: block;
        margin-top: 2px;
    }
    .brand-slogan-col {
        display: flex;
        align-items: center;
        font-size: 13px;
        color: var(--text-muted);
        border-left: 1px solid #e2e8f0;
        padding-left: 20px;
        margin-left: 10px;
    }
    .search-mockup {
        display: flex;
        align-items: center;
        background: #f1f5f9;
        border: 1px solid #cbd5e1;
        border-radius: 6px;
        padding: 6px 14px;
        width: 100%;
        max-width: 320px;
        margin-left: auto;
    }
    .search-mockup input {
        border: none;
        background: transparent;
        box-shadow: none;
        margin: 0;
        padding: 0 8px;
        font-size: 13px;
        color: var(--text-main);
        height: auto;
    }
    .search-mockup input:focus {
        background: transparent;
        border: none;
        box-shadow: none;
    }
    .search-mockup .search-arrow {
        color: var(--text-muted);
        font-size: 14px;
    }
    .primary-navigation-bar {
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    }
    .nav-container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .nav-links {
        display: flex;
        align-items: center;
        gap: 32px;
        margin: 0;
        padding: 0;
        list-style: none;
    }
    .nav-links li a {
        display: inline-block;
        padding: 16px 0;
        font-size: 15px;
        font-weight: 500;
        color: #334155;
        position: relative;
    }
    .nav-links li a.active,
    .nav-links li a:hover {
        color: var(--primary-blue);
    }
    .nav-links li a.active::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 3px;
        background-color: var(--primary-blue);
        border-radius: 2px 2px 0 0;
    }
    .nav-right-link {
        font-size: 14px;
        color: var(--text-muted);
        font-weight: 500;
    }
    .breadcrumb-bar {
        padding: 14px 0;
        font-size: 13px;
        color: var(--text-muted);
    }
    .breadcrumb-bar a {
        color: var(--text-muted);
    }
    .breadcrumb-bar a:hover {
        color: var(--primary-blue);
    }
    .breadcrumb-bar span {
        margin: 0 8px;
        color: var(--text-light);
    }
    .detail-layout-section {
        padding: 10px 0 60px;
    }
    .article-main-card {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: 8px;
        padding: 40px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.02);
    }
    .article-header {
        border-bottom: 1px solid #f1f5f9;
        padding-bottom: 24px;
        margin-bottom: 28px;
    }
    .article-badge {
        display: inline-block;
        background: #eff6ff;
        color: var(--primary-blue);
        font-size: 12px;
        font-weight: 600;
        padding: 4px 10px;
        border-radius: 4px;
        margin-bottom: 14px;
    }
    .article-header h1 {
        font-size: 28px;
        font-weight: 700;
        line-height: 1.35;
        color: #0b192c;
        margin: 0 0 16px;
    }
    .article-meta {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 20px;
        font-size: 13px;
        color: var(--text-muted);
    }
    .article-meta span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .article-body {
        font-size: 16px;
        line-height: 1.8;
        color: #1e293b;
    }
    .article-body p {
        margin-bottom: 20px;
        font-size: 16px;
        line-height: 1.85;
    }
    .article-body h2, .article-body h3, .article-body h4 {
        color: var(--primary-dark);
        font-weight: 700;
        margin-top: 32px;
        margin-bottom: 16px;
    }
    .article-body img {
        max-width: 100%;
        height: auto;
        border-radius: 6px;
        margin: 16px 0;
    }
    .article-body blockquote {
        margin: 20px 0;
        padding: 16px 20px;
        background: #f8fafc;
        border-left: 4px solid var(--primary-blue);
        color: #475569;
        border-radius: 0 6px 6px 0;
    }
    .article-not-found {
        text-align: center;
        padding: 60px 20px;
    }
    .article-not-found h3 {
        font-size: 20px;
        color: var(--text-main);
        margin-bottom: 12px;
    }
    .article-not-found p {
        color: var(--text-muted);
        margin-bottom: 24px;
    }
    .btn-back-home {
        display: inline-block;
        background: var(--primary-blue);
        color: #ffffff;
        padding: 10px 24px;
        border-radius: 6px;
        font-weight: 600;
        font-size: 14px;
    }
    .btn-back-home:hover {
        background: var(--primary-dark);
        color: #ffffff;
    }
    .sidebar-card {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: 8px;
        padding: 24px;
        margin-bottom: 24px;
        box-shadow: 0 2px 6px rgba(0,0,0,0.02);
    }
    .sidebar-title {
        font-size: 17px;
        font-weight: 700;
        color: var(--primary-dark);
        display: flex;
        align-items: center;
        gap: 8px;
        border-bottom: 2px solid #f1f5f9;
        padding-bottom: 12px;
        margin-bottom: 16px;
    }
    .sidebar-title::before {
        content: "";
        width: 4px;
        height: 16px;
        background: var(--primary-blue);
        border-radius: 2px;
        display: inline-block;
    }
    .sidebar-article-item {
        display: flex;
        gap: 12px;
        margin-bottom: 16px;
        padding-bottom: 16px;
        border-bottom: 1px dashed #e2e8f0;
    }
    .sidebar-article-item:last-child {
        margin-bottom: 0;
        padding-bottom: 0;
        border-bottom: none;
    }
    .sidebar-article-img {
        width: 80px;
        height: 60px;
        border-radius: 4px;
        object-fit: cover;
        flex-shrink: 0;
    }
    .sidebar-article-info {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }
    .sidebar-article-info h4 {
        font-size: 14px;
        font-weight: 600;
        line-height: 1.4;
        margin: 0;
        color: var(--text-main);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .sidebar-article-info h4:hover {
        color: var(--primary-blue);
    }
    .sidebar-article-date {
        font-size: 12px;
        color: var(--text-light);
    }
    .sidebar-risk-box {
        background: #fffbeb;
        border: 1px solid #fef3c7;
        border-radius: 6px;
        padding: 16px;
        font-size: 13px;
        color: #92400e;
        line-height: 1.6;
    }
    .main-footer {
        background: #0f172a;
        color: #94a3b8;
        padding: 50px 0 20px;
        border-top: 1px solid #1e293b;
    }
    .footer-brand h4 {
        color: #ffffff;
        font-size: 20px;
        font-weight: 700;
        margin-bottom: 14px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .footer-brand p {
        font-size: 13px;
        line-height: 1.7;
        color: #94a3b8;
        max-width: 440px;
    }
    .footer-nav-col h5 {
        color: #ffffff;
        font-size: 15px;
        font-weight: 600;
        margin-bottom: 16px;
    }
    .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-links li {
        margin-bottom: 10px;
    }
    .footer-links li a {
        color: #94a3b8;
        font-size: 13px;
    }
    .footer-links li a:hover {
        color: #ffffff;
    }
    .footer-legal-bar {
        border-top: 1px solid #1e293b;
        margin-top: 40px;
        padding-top: 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 12px;
        color: #64748b;
        flex-wrap: wrap;
        gap: 12px;
    }
    @media (max-width: 1024px) {
        .brand-slogan-col {
            display: none;
        }
        .nav-links {
            gap: 20px;
        }
    }
    @media (max-width: 768px) {
        .main-header {
            padding: 12px 0;
        }
        .search-mockup {
            display: none;
        }
        .nav-container {
            overflow-x: auto;
            white-space: nowrap;
            padding-bottom: 4px;
            -webkit-overflow-scrolling: touch;
        }
        .nav-links {
            gap: 18px;
        }
        .nav-links li a {
            padding: 12px 0;
            font-size: 14px;
        }
        .nav-right-link {
            display: none;
        }
        .article-main-card {
            padding: 20px 16px;
        }
        .article-header h1 {
            font-size: 22px;
        }
    }
    @media (max-width: 520px) {
        .footer-legal-bar {
            flex-direction: column;
            align-items: flex-start;
        }
    }

/* roulang page: category1 */
:root {
      --primary-blue: #1d5cb8;
      --primary-dark: #0f346c;
      --accent-blue: #2563eb;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --text-light: #94a3b8;
    }
    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-page);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, opacity 0.2s ease;
    }
    a:hover, a:focus {
      color: var(--accent-blue);
      text-decoration: none;
    }
    /* 品牌主头部 */
    .main-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 18px 0;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .brand-logo-badge {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, var(--primary-blue), #3b82f6);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      font-size: 22px;
      font-weight: 800;
      box-shadow: 0 4px 10px rgba(29, 92, 184, 0.25);
    }
    .brand-titles h1 {
      font-size: 22px;
      font-weight: 800;
      margin: 0;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .brand-titles span {
      font-size: 11px;
      color: var(--text-muted);
      letter-spacing: 1px;
      text-transform: uppercase;
      display: block;
      margin-top: 2px;
    }
    .brand-slogan-col {
      display: flex;
      align-items: center;
      font-size: 13px;
      color: var(--text-muted);
      border-left: 1px solid #e2e8f0;
      padding-left: 20px;
      margin-left: 10px;
    }
    .search-mockup {
      display: flex;
      align-items: center;
      background: #f1f5f9;
      border: 1px solid #cbd5e1;
      border-radius: 6px;
      padding: 6px 14px;
      width: 100%;
      max-width: 380px;
      margin-left: auto;
    }
    .search-mockup input {
      border: none;
      background: transparent;
      box-shadow: none;
      margin: 0;
      padding: 0 8px;
      font-size: 13px;
      color: var(--text-main);
      height: auto;
    }
    .search-mockup input:focus {
      background: transparent;
      border: none;
      box-shadow: none;
    }
    .search-mockup .search-arrow {
      color: var(--text-muted);
      font-size: 14px;
      margin-left: auto;
    }
    /* 主导航 */
    .primary-navigation-bar {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .nav-links li a {
      display: inline-block;
      padding: 16px 0;
      font-size: 15px;
      font-weight: 500;
      color: #334155;
      position: relative;
    }
    .nav-links li a.active,
    .nav-links li a:hover {
      color: var(--primary-blue);
    }
    .nav-links li a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 3px;
      background-color: var(--primary-blue);
      border-radius: 2px 2px 0 0;
    }
    .nav-right-link {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }
    /* 分类落地首屏 */
    .category-hero {
      position: relative;
      background: #0b1f3b url('/assets/images/58eb15af7ddf95d5.jpg') center/cover no-repeat;
      padding: 64px 0;
      color: #ffffff;
      border-bottom: 1px solid #1e3a8a;
    }
    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(15, 52, 108, 0.94) 0%, rgba(11, 31, 59, 0.90) 100%);
    }
    .category-hero .grid-container {
      position: relative;
      z-index: 2;
    }
    .category-tag {
      display: inline-block;
      background: rgba(37, 99, 235, 0.3);
      border: 1px solid rgba(147, 197, 253, 0.4);
      color: #bfdbfe;
      padding: 4px 12px;
      border-radius: 4px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .category-hero h2 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 16px;
      color: #ffffff;
      line-height: 1.3;
    }
    .category-hero p {
      font-size: 16px;
      color: #cbd5e1;
      max-width: 820px;
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .hero-stat-row {
      display: flex;
      gap: 30px;
      margin-top: 20px;
      border-top: 1px solid rgba(255,255,255,0.15);
      padding-top: 20px;
    }
    .hero-stat-item h4 {
      font-size: 24px;
      font-weight: 700;
      color: #60a5fa;
      margin: 0 0 4px 0;
    }
    .hero-stat-item span {
      font-size: 13px;
      color: #94a3b8;
    }
    /* 核心矩阵板块 */
    .section-wrap {
      padding: 48px 0;
    }
    .section-title-wrap {
      margin-bottom: 32px;
      border-left: 4px solid var(--primary-blue);
      padding-left: 14px;
    }
    .section-title-wrap h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 4px 0;
    }
    .section-title-wrap p {
      margin: 0;
      font-size: 14px;
      color: var(--text-muted);
    }
    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 24px;
      height: 100%;
      box-shadow: 0 2px 4px rgba(0,0,0,0.02);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .feature-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(0,0,0,0.06);
    }
    .feature-icon-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 6px;
      background: #eff6ff;
      color: var(--primary-blue);
      font-weight: 700;
      font-size: 16px;
      margin-bottom: 14px;
    }
    .feature-card h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.6;
    }
    /* 图文分栏 */
    .pro-feature-row {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      overflow: hidden;
      margin-bottom: 24px;
    }
    .pro-feature-img {
      height: 100%;
      min-height: 240px;
      width: 100%;
      object-fit: cover;
      display: block;
    }
    .pro-feature-text {
      padding: 36px 30px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .pro-feature-text h4 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .pro-feature-text p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.7;
    }
    .rule-table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 14px;
      font-size: 13px;
    }
    .rule-table th, .rule-table td {
      border: 1px solid #e2e8f0;
      padding: 8px 12px;
      text-align: left;
    }
    .rule-table th {
      background: #f8fafc;
      color: var(--text-main);
      font-weight: 600;
    }
    .rule-table td {
      color: var(--text-muted);
    }
    /* 动态资讯板块 */
    .news-grid-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 20px;
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: border-color 0.2s ease;
    }
    .news-grid-item:hover {
      border-color: var(--accent-blue);
    }
    .news-grid-item .news-meta {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 8px;
      display: flex;
      justify-content: space-between;
    }
    .news-grid-item h5 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .news-grid-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
      flex-grow: 1;
    }
    /* 常见问题 */
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 20px 24px;
      margin-bottom: 16px;
    }
    .faq-item h5 {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }
    .faq-item p {
      font-size: 14px;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.6;
    }
    /* 页脚 */
    .main-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 56px 0 28px;
      font-size: 14px;
      border-top: 1px solid #1e293b;
    }
    .footer-brand h4 {
      color: #ffffff;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-brand p {
      color: #64748b;
      line-height: 1.7;
      margin-bottom: 24px;
      font-size: 13px;
      max-width: 420px;
    }
    .footer-nav-col h5 {
      color: #f1f5f9;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links li a {
      color: #94a3b8;
      font-size: 13px;
    }
    .footer-links li a:hover {
      color: #ffffff;
    }
    .footer-legal-bar {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-top: 48px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 16px;
      font-size: 12px;
      color: #64748b;
    }
    @media (max-width: 1024px) {
      .hero-stat-row { flex-wrap: wrap; gap: 20px; }
      .brand-slogan-col { display: none; }
    }
    @media (max-width: 768px) {
      .nav-links { gap: 16px; flex-wrap: wrap; }
      .nav-container { flex-direction: column; align-items: flex-start; padding: 10px 0; }
      .category-hero { padding: 40px 0; }
      .category-hero h2 { font-size: 24px; }
      .pro-feature-text { padding: 20px; }
      .footer-legal-bar { flex-direction: column; }
    }
    @media (max-width: 520px) {
      .search-mockup { max-width: 100%; margin-top: 10px; }
      .brand-wrap { width: 100%; }
      .hero-stat-item { width: 100%; }
    }