/* 重置 & 基础蓝白 */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      background: #f4fafd;
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
      color: #1c3b5c;
      line-height: 1.6;
      min-height: 100vh;
    }

    /* 布局容器 */
    .layout-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 1.5rem;
      display: flex;
      gap: 2rem;
    }

    /* 左侧边栏 */
    .sidebar {
      flex: 0 0 280px;
    /*  position: sticky; */
      top: 1.5rem;
      height: fit-content;
    }

    /* 站点标题 */
    .site-header {
      text-align: center;
      margin-bottom: 2rem;
    }

    .site-header h1 {
      font-size: 2.2rem;
      font-weight: 600;
      background-clip: text;
      margin-bottom: 0.5rem;
    }
    
    .site-header h1 b {
      background: linear-gradient(145deg, #105a88, #2979b5);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    /*去掉所有样式*/
    .site-header a {
      text-decoration: none;
      color: inherit;
    }

    .site-tagline {
      color: #497e9e;
      font-size: 0.9rem;
      padding: 0.5rem 1rem;
      background: #e8f2fa;
      border-radius: 20px;
      display: inline-block;
    }

    /* 左侧导航列表 */
    .nav-list {
      background: white;
      border-radius: 20px;
      padding: 1.5rem;
      box-shadow: 0 5px 20px rgba(21, 96, 144, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.7);
    }

    .nav-category {
      margin-bottom: 2rem;
    }

    .nav-category:last-child {
      margin-bottom: 0;
    }

    .nav-category h3 {
      color: #0c4e78;
      font-size: 1.1rem;
      padding-bottom: 0.5rem;
      margin-bottom: 0.8rem;
      border-bottom: 2px solid #e0f0ff;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .nav-category h3::before {
      content: "▸";
      font-size: 0.9rem;
    }

    .nav-links {
      list-style: none;
    }

    .nav-links li {
      margin-bottom: 0.6rem;
    }

    .nav-links a {
      display: block;
      padding: 0.6rem 1rem;
      text-decoration: none;
      color: #1c3b5c;
      border-radius: 12px;
      transition: all 0.2s;
      border: 1px solid transparent;
    }

    .nav-links a:hover {
      background: #e8f4ff;
      color: #0c4e78;
      border-color: #c5e2ff;
      transform: translateX(5px);
    }

    .nav-links .active {
      background: #e0f0ff;
      color: #0c4e78;
      font-weight: 500;
      border-color: #a3d0ff;
    }

    /* 右侧主内容区 */
    .main-content {
      flex: 1;
    }

    /* 主内容标题 */
    .content-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 2rem;
    }

    .section-title {
      font-size: 1.8rem;
      color: #0c4e78;
      font-weight: 600;
    }

    .section-subtitle {
      color: #497e9e;
      font-size: 0.95rem;
    }

    /* 右侧图文网格 */
    .grid-container {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
      gap: 1.5rem;
      margin-bottom: 3rem;
    }

    /* 图文卡片 */
    .image-card {
      background: white;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: 0 5px 20px rgba(21, 96, 144, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.7);
      transition: all 0.3s;
    }

    .image-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 12px 30px rgba(21, 96, 144, 0.15);
    }

    .card-image {
      height: 50px;
      background: linear-gradient(135deg, #a3d0ff, #c5e2ff);
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-size: 2.5rem;
      position: relative;
    }

    /* 图片占位符 - 使用图标和标题首字母 */
    .card-image::after {
      content: attr(data-initial);
      font-size: 1.5rem;
      font-weight: bold;
      opacity: 0.2;
    }

    .card-image .icon {
      position: absolute;
      font-size: 3rem;
    }

    .card-content {
      padding: 1.5rem;
    }

    .card-title {
      font-size: 1.2rem;
      font-weight: 600;
      color: #0c4e78;
      margin-bottom: 0.8rem;
      line-height: 1.4;
    }

    .card-title a {
      text-decoration: none;
      color: inherit;
    }

    .card-title a:hover {
      color: #2979b5;
      text-decoration: underline;
    }

    .card-meta {
      display: flex;
      justify-content: space-between;
      color: #6b91ad;
      font-size: 0.85rem;
      margin-bottom: 0.8rem;
    }

    .card-date {
      background: #f0f8ff;
      padding: 0.2rem 0.8rem;
      border-radius: 12px;
    }

    .card-excerpt {
      color: #3a5772;
      font-size: 0.95rem;
      line-height: 1.5;
      margin-bottom: 1rem;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-bottom: 1rem;
    }

    .card-tag {
      background: #e8f4ff;
      color: #1d6791;
      padding: 0.2rem 0.8rem;
      border-radius: 12px;
      font-size: 0.8rem;
      margin-right: 8px;
      border: 1px solid #c6e2ff;
    }

    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      color: #146b9e;
      font-weight: 500;
      text-decoration: none;
      font-size: 0.9rem;
    }

    .card-link:hover {
      color: #003d66;
      gap: 0.8rem;
    }

    .card-link::after {
      content: "→";
    }

    /* 城市公告 */
    .city-announcement {
      background: linear-gradient(135deg, #e4f1fb, #e8f4ff);
      border-radius: 20px;
      padding: 1.8rem;
      margin: 2rem 0;
      border: 1px solid white;
      box-shadow: 0 8px 20px rgba(21, 96, 144, 0.1);
    }

    .city-announcement h2 {
      font-size: 1.4rem;
      color: #074069;
      margin-bottom: 1.2rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .city-announcement h2::before {
      content: "📢";
    }

    .city-list {
      list-style: none;
      display: flex;
      flex-wrap: wrap;
      gap: 0.8rem;
    }

    .city-list li {
      background: white;
      border-radius: 50px;
      padding: 0.5rem 1.2rem;
      font-size: 0.95rem;
      color: #1f5b83;
      box-shadow: 0 3px 6px rgba(181, 211, 236, 0.3);
    }
    
    .city-list li a {
      text-decoration: none;
      color: inherit;
    }

    /* 页脚 */
    .footer {
      margin-top: 3.5rem;
      padding: 2rem 0 1.5rem;
      text-align: center;
      border-top: 2px solid #d0e6f7;
    }

    .icp-link {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: #e7f2fc;
      padding: 0.7rem 2rem;
      border-radius: 50px;
      font-size: 0.95rem;
      font-weight: 500;
      color: #0b4b74;
      text-decoration: none;
      border: 1px solid #b2d6f5;
      transition: all 0.2s;
    }

    .icp-link:hover {
      background: #d0e9ff;
      border-color: #3f99d6;
      transform: translateY(-2px);
    }

    .copyright {
      margin-top: 1rem;
      font-size: 0.85rem;
      color: #44799e;
    }

    /* 分页样式 */
    .pagination-container {
        margin: 2.5rem 0 3rem;
        text-align: center;
    }

    .pagination {
        display: inline-flex;
        align-items: center;
        gap: 0.8rem;
        background: white;
        padding: 1rem 1.8rem;
        border-radius: 16px;
        box-shadow: 0 4px 12px rgba(21, 96, 144, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.7);
        flex-wrap: wrap;
        justify-content: center;
    }

    .page-nav, .page-number {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 2.8rem;
        height: 2.8rem;
        padding: 0 0.8rem;
        background: #f8fcff;
        color: #1c3b5c;
        text-decoration: none;
        border-radius: 12px;
        border: 1px solid #d9ecff;
        font-weight: 500;
        transition: all 0.2s ease;
    }

    .page-nav:hover, .page-number:hover {
        background: #e8f4ff;
        border-color: #a3d0ff;
        transform: translateY(-2px);
    }

    .page-number.current {
        background: linear-gradient(135deg, #4facfe, #00f2fe);
        color: white;
        border-color: transparent;
        font-weight: 600;
        box-shadow: 0 4px 8px rgba(79, 172, 254, 0.3);
    }

    .page-ellipsis {
        padding: 0 0.5rem;
        color: #6b91ad;
    }

    .page-info {
        margin-left: 1rem;
        padding-left: 1rem;
        border-left: 1px solid #e0f0ff;
        color: #497e9e;
        font-size: 0.9rem;
    }

    /* 文章内容页特有样式 */
    .article-container {
      background: #fff;
      border-radius: 12px;
      padding: 24px;
      box-shadow: 0 2px 12px rgba(0,0,0,0.06);
      margin-bottom: 24px;
    }
    
    .article-header {
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px solid #f0f0f0;
    }
    
    .article-title {
      font-size: 24px;
      line-height: 1.4;
      color: #222;
      margin-bottom: 12px;
    }
    
    .article-meta {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 14px;
      color: #666;
    }
    
    .article-meta span {
      display: flex;
      align-items: center;
      gap: 4px;
    }
    
    .article-content {
      margin: 0 auto;
      padding: 2rem 1.5rem;
      font-size: 18px;
      line-height: 1.85;
      color: #374151;
    }

    /* 段落首行缩进两格 */
    .article-content p {
      text-indent: 2em;
      margin: 0.8em 0;
    }

    /* 列表样式 */
    .article-content ul,
    .article-content ol {
      padding-left: 1.8em;
      margin: 1em 0;
    }

    .article-content li {
      margin: 0.5em 0;
    }

    /* 引用块 */
    .article-content blockquote {
      margin: 1.5em 0;
      padding: 1em 1.2em;
      background: #f8fafc;
      border-left: 4px solid #60a5fa;
      border-radius: 0 8px 8px 0;
      color: #475569;
      font-style: italic;
    }
    
    .article-tags {
      margin-top: 32px;
      padding-top: 16px;
      border-top: 1px dashed #eee;
    }
    
    .article-nav {
      display: flex;
      justify-content: space-between;
      margin-top: 32px;
      padding-top: 20px;
      border-top: 1px solid #f0f0f0;
    }
    
    .article-nav a {
      color: #1890ff;
      text-decoration: none;
      max-width: 45%;
    }
    
    .article-nav a:hover {
      text-decoration: underline;
    }

    .sidebar {
      width: 280px;
      flex-shrink: 0;
      transition: transform 0.3s ease;
    }

    .main-content {
      flex: 1;
      min-width: 0; /* 防止内容溢出 */
    }

    /* 文章图片自适应 */
    .article-content img {
      max-width: 100%;
      height: auto !important;
      object-fit: contain;
      margin: 0 auto 16px;
      display: block;
    }

     /* 文章段落首先自动空两格 */
    .article-content p {
      text-indent: 2em;
      margin-bottom: 16px;
    }

    /* 移动端菜单按钮样式 */
    .mobile-nav-toggle {
      display: none;
      margin: 10px 0;
      padding: 8px 15px;
      background: #f0f0f0;
      border: 1px solid #ddd;
      border-radius: 4px;
      cursor: pointer;
    }

    .download-card {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: linear-gradient(135deg,#f4f8ff 0%,#ffffff 100%);
      border: 1px solid #e4ecfa;
      border-radius: 14px;
      padding: 20px 24px;
      margin: 28px 0;
      box-shadow: 0 6px 18px rgba(0,60,180,.06);
      flex-wrap: wrap;
    }

    /* 左侧 */
    .download-left {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      flex: 1;
      min-width: 260px;
    }

    .file-icon {
      font-size: 38px;
      line-height: 1;
    }

    .file-info h3 {
      margin: 0 0 6px;
      font-size: 16px;
      color: #1f2d55;
    }

    .file-meta {
      margin: 0 0 4px;
      font-size: 13px;
      color: #7a8bb5;
    }

    .extract-code {
      margin: 0;
      font-size: 14px;
      color: #333;
    }

    .extract-code span {
      display: inline-block;
      background: #eef3ff;
      padding: 2px 8px;
      border-radius: 6px;
      font-weight: bold;
      color: #2b5cff;
      letter-spacing: 1px;
    }

    /* 右侧 */
    .download-right {
      text-align: right;
      margin-top: 10px;
    }

    .download-btn {
      display: inline-block;
      background: linear-gradient(135deg,#4a8cff,#2b5cff);
      color: #fff !important;
      font-size: 15px;
      padding: 12px 26px;
      border-radius: 30px;
      text-decoration: none;
      box-shadow: 0 4px 14px rgba(43,92,255,.35);
      transition: all .25s ease;
    }

    .download-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(43,92,255,.45);
    }

    .tip {
      margin: 6px 0 0;
      font-size: 12px;
      color: #999;
    }

    .article-content{
      table {
          width: 100%;
          border-collapse: collapse;
          font-size: 0.95rem;
          margin: 12px 0;
      
          caption {
              padding: 20px;
              font-size: 1.4rem;
              font-weight: 700;
              color: #2c3e50;
              text-align: left;
              background-color: #f8fafc;
              border-bottom: 1px solid #eaeaea;
          }
          
          th {
              background-color: #f8fafc;
              padding: 18px 15px;
              text-align: left;
              font-weight: 700;
              color: #2c3e50;
              border-bottom: 2px solid #eaeaea;
              position: relative;
              user-select: none;
          }
          
          td {
              padding: 16px 15px;
              border-bottom: 1px solid #f0f0f0;
              transition: all 0.2s ease;
          }
          
          tr:last-child td {
              border-bottom: none;
          }
          
          tbody tr:nth-child(even) {
              background-color: #f9fbfd;
          }
          
          tbody tr:hover {
              background-color: #f0f7ff;
              transform: translateY(-1px);
              box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
          }

          th:hover .sort-icon {
              opacity: 0.7;
          }
          
          th.sorted .sort-icon {
              opacity: 1;
              color: #4a6cf7;
          }
      }

      hr {
        border: none;
        height: 1px;
        background-color: #e5e7eb;
        margin: 48px 0;
      }

      b, strong {
        font-weight: 600;
        color: #1f2937; 
        background: linear-gradient(
          180deg,
          transparent 60%,
          #fef3c7 60%
        );      
        margin: 5px 0;
      }

      ol {
        padding-left: 0;
        margin: 24px 0;
        list-style: none;
        counter-reset: article-ol;

        li {
          position: relative;
          padding-left: 36px;
          margin-bottom: 12px;
          line-height: 1.8;
          counter-increment: article-ol;

          &::before {
            content: counter(article-ol);
            position: absolute;
            left: 0;
            top: 2px;
            width: 24px;
            height: 24px;
            background: #4f46e5;
            color: white;
            font-size: 13px;
            font-weight: 600;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
          }
        }
      }
    }

    /* 基础标题样式 */
    [class^="md-h"] {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
                  "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
                  sans-serif;
      font-weight: 600;
      line-height: 1.4;
      color: #1f2937;
      margin-bottom: 0.6em;
    }

    /* H1 - 主标题 */
    .md-h1 {
      font-size: 2em;
      letter-spacing: -0.02em;
      padding-bottom: 0.4em;
      border-bottom: 1px solid #e5e7eb;
      position: relative;
    }

    /* H1 底部渐变装饰线 */
    .md-h1::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -1px;
      width: 80px;
      height: 3px;
      background: linear-gradient(90deg, #3b82f6, #8b5cf6);
      border-radius: 2px;
    }

    /* H2 - 章节标题 */
    .md-h2 {
      font-size: 1.5em;
      padding-left: 0.8rem;
      border-left: 4px solid #3b82f6;
      background: linear-gradient(
        90deg,
        rgba(59, 130, 246, 0.08) 0%,
        transparent 100%
      );
      padding-top: 0.4rem;
      padding-bottom: 0.4rem;
      border-radius: 0 8px 8px 0;
    }

    /* H3 - 小节标题 */
    .md-h3 {
      font-size: 1.2em;
      color: #374151;
      position: relative;
      padding-left: 1rem;
    }

    .md-h3::before {
      content: "";
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 5px;
      height: 1.2em;
      background: #10b981;
      border-radius: 3px;
    }

    /* H4 */
    .md-h4 {
      font-size: 1em;
      color: #4b5563;
      padding-left: 0.6rem;
      border-left: 3px solid #d1d5db;
    }

    /* H5 */
    .md-h5 {
      font-size: 0.8em;
      color: #6b7280;
      font-weight: 500;
    }

    /* H6 */
    .md-h6 {
      font-size: 0.6em;
      color: #9ca3af;
      font-weight: 500;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    @media screen and (max-width: 768px) {
      .download-card {
        flex-direction: column;
        align-items: stretch;
      }

      .download-right {
        text-align: left;
        margin-top: 18px;
      }
      
      .layout-container {
        flex-direction: column;
        gap: 1.5rem;
      }

      .content-header{display: none;}

      .sidebar {
        flex: none;
        /*position: static;*/
        width: 100%;
      }
      
      .mobile-nav-toggle {
        display: inline-block;
      }
      
      .nav-list {
        display: none !important;
      }

      /* 侧边栏头部相对定位，用于放置按钮 */
      .site-header {
        position: relative;
        padding-right: 130px; /* 给按钮留出空间 */
      }

      /* 移动端菜单按钮样式 */
      .mobile-menu-btn {
        position: absolute;
        top: 30%;
        right: 0px;
        transform: translateY(-50%);
        background: transparent;
        border: 1px solid #ddd;
        border-radius: 4px;
        padding: 6px 10px;
        font-size: 14px;
        color: #333;
        cursor: pointer;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        gap: 5px;
      }
      
      .mobile-menu-btn:hover {
        background-color: #f5f5f5;
      }
      
      .mobile-menu-btn.active {
        background-color: #e8f4ff;
        border-color: #1890ff;
        color: #1890ff;
      }
      
      /* 显示导航菜单时的样式 */
      .nav-list.show {
        display: block !important;
        position: absolute;
        top: 10%;
        left: 0;
        right: 0;
        background: white;
        z-index: 1000;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        padding: 15px;
        border-top: 1px solid #eee;
      }
      
      .main-content {
        padding: 0px;
      }
      
      /* 调整移动端字体大小 */
      .article-title {
        font-size: 1.5rem;
      }
      
      .article-content {
        font-size: 1rem;
      }

      table {
          min-width: 700px;
      }
      
      /* 表格在移动端可滚动 */
      .article-content table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
      }
      
      .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      }
      
      .card-image {
        height: 40px;
      }

      .pagination {
          gap: 0.5rem;
          padding: 0.8rem 1rem;
      }
      .page-nav, .page-number {
          min-width: 2.5rem;
          height: 2.5rem;
          font-size: 0.9rem;
      }
      .page-info {
          display: block;
          width: 100%;
          margin-left: 0;
          padding-left: 0;
          border-left: none;
          border-top: 1px solid #e0f0ff;
          padding-top: 0.8rem;
          margin-top: 0.5rem;
      }
      .article-container {
        padding: 16px;
        border-radius: 8px;
      }
      
      .article-title {
        font-size: 20px;
      }
      
      .article-content {
        font-size: 15px;
      }
    }