body {
      font-family: 'Segoe UI', Arial, sans-serif;
      line-height: 1.6;
      margin: 0;
      padding: 0;
      background-color: #0a192f; /* 深蓝色背景 */
      color: #e6f1ff;
    }
    /* 修改 header 样式 */
    header {
      background: linear-gradient(90deg, #1a237e, #0d47a1);
      padding: 0 10%;  /* 左右padding设为10% */
      color: #fff;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      box-sizing: border-box;
      height: 50px;
      display: flex;
      align-items: center;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    }
    header h1 {
      margin: 0; /* 移除默认边距 */
      font-size: 24px; /* 调整标题大小 */
    }
    /* 修改 nav 样式 */
    nav {
      background: rgba(13, 71, 161, 0.95);
      backdrop-filter: blur(10px);
      padding: 10px 10%; /* 左右padding设为10% */
      text-align: center;
      position: fixed;
      top: 50px;
      left: 0;
      width: 100%;
      z-index: 999;
      box-sizing: border-box;
      height: 45px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }
    nav::-webkit-scrollbar {
      height: 4px;
    }
    nav::-webkit-scrollbar-thumb {
      background: #666;
      border-radius: 2px;
    }
    nav a {
      color: #fff;
      text-decoration: none;
      padding: 8px 15px;
      margin: 0 5px;
      border-radius: 4px;
      transition: all 0.3s;
      display: inline-block;
      background-color: transparent;
      font-weight: 500;
      letter-spacing: 0.5px;
    }
    nav a:hover {
      background-color: rgba(255, 255, 255, 0.1);
      transform: translateY(-2px);
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }
    nav a.active {
      background: linear-gradient(45deg, #2196f3, #1976d2);
      box-shadow: 0 2px 8px rgba(33, 150, 243, 0.3);
    }
    /* 修改 section 样式 */
    section {
      background: rgba(255, 255, 255, 0.03);
      border-radius: 10px;
      margin: 20px;
      padding: 20px;
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.1);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
      scroll-margin-top: 115px; /* 增加滚动边距，确保标题显示在导航栏下方 */
    }
    section h2 {
      margin: 0 0 20px 0;
      background: linear-gradient(45deg, #1e88e5, #1565c0);
      padding: 15px;
      border-radius: 8px;
      font-size: 24px;
      color: #fff;
      border-left: 5px solid #90caf9;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }
    /* 修改主体内容布局 */
    main {
      padding-top: 95px;
      width: 80%; /* 设置内容区域宽度为80% */
      margin: 0 auto; /* 居中内容 */
      max-width: 1400px; /* 设置最大宽度，避免在超宽屏幕上过于拉伸 */
    }
    /* 修改搜索框样式 */
    .table-controls {
      margin: 20px 0;
    }
    .search-input {
      padding: 10px 15px;
      width: 300px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 6px;
      color: #fff;
      font-size: 14px;
      transition: all 0.3s;
    }
    .search-input:focus {
      outline: none;
      background: rgba(255, 255, 255, 0.1);
      border-color: #2196f3;
      box-shadow: 0 0 10px rgba(33, 150, 243, 0.3);
    }
    .search-input::placeholder {
      color: rgba(255, 255, 255, 0.5);
    }
    table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      margin-bottom: 20px;
      font-size: 14px;
      background: rgba(255, 255, 255, 0.02);
      border-radius: 8px;
      overflow: hidden;
    }
    th {
      background: linear-gradient(45deg, #1565c0, #0d47a1);
      color: #fff;
      font-weight: 500;
      text-transform: uppercase;
      letter-spacing: 1px;
    }
    td, th {
      padding: 12px 15px;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    tr:hover {
      background: rgba(255, 255, 255, 0.05);
    }
    td a {
      color: #64b5f6;
      text-decoration: none;
      transition: all 0.3s;
    }
    td a:hover {
      color: #2196f3;
      text-decoration: none;
    }
    a {
      color: #0066cc;
    }
    /* 修改 footer 样式 */
    footer {
      background: linear-gradient(90deg, #1a237e, #0d47a1);
      color: #fff;
      text-align: center;
      padding: 15px 10%; /* 左右padding设为10% */
      margin-top: 40px;
      width: 100%;
      box-sizing: border-box;
    }
    #back-to-top {
      background: linear-gradient(45deg, #1976d2, #2196f3);
      color: #fff;
      width: 45px;
      height: 45px;
      border-radius: 50%;
      border: none;
      cursor: button;
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      font-size: 20px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
      transition: all 0.3s;
    }
    #back-to-top:hover {
      transform: translateY(-3px);
      box-shadow: 0 4px 15px rgba(33, 150, 243, 0.4);
    }
    /* 响应式设计调整 */
    @media screen and (max-width: 768px) {
      main {
        width: 95%; /* 移动端调整内容区域宽度 */
        padding-top: calc(50px + 45px + 20px); /* 根据nav的高度动态调整main的顶部填充 */
      }
      
      header {
        padding: 0 5%; /* 移动端调整padding */
      }
      
      nav {
        flex-direction: column;
        align-items: flex-start;
        padding: 8px 5%;
        height: auto;
        top: 50px; /* 保持nav在顶部 */
      }
      
      footer {
        padding: 15px 5%; /* 移动端调整padding */
      }
      
      header h1 {
        font-size: 20px;
      }
      
      nav a {
        padding: 6px 10px;
        margin: 5px 0;
        font-size: 14px;
      }
      
      section {
        scroll-margin-top: 105px; /* 移动端调整滚动边距 */
        margin: 15px;
        padding: 15px;
      }
      
      section h2 {
        font-size: 20px;
        padding: 12px;
      }
    }
    /* 卡片布局样式 */
    .card-container {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      justify-content: center;
    }
    .card {
      background: rgba(255, 255, 255, 0.03);
      border-radius: 10px;
      padding: 20px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
      width: calc(33.333% - 40px); /* 三列布局 */
      box-sizing: border-box;
      transition: transform 0.3s;
    }
    .card:hover {
      transform: translateY(-5px);
    }
    .card h3 {
      margin-top: 0;
      font-size: 20px;
      color: #fff;
    }
    .card p {
      color: #e6f1ff;
    }
    .card a {
      color: #64b5f6;
      text-decoration: none;
      transition: color 0.3s;
    }
    .card a:hover {
      color: #2196f3;
    }
    @media screen and (max-width: 768px) {
      .card {
        width: calc(50% - 20px); /* 两列布局 */
      }
    }
    @media screen and (max-width: 480px) {
      .card {
        width: 100%; /* 单列布局 */
      }
    }

/* 搜索框和卡片布局样式 */
        .search-container {
      display: flex;
      justify-content: center;
      margin: 20px 0;
    }
    
    #search-input {
      width: 300px;
      padding: 10px;
      border: 1px solid #ccc;
      border-radius: 4px;
    }
    
    #search-button {
      padding: 10px 20px;
      margin-left: 10px;
      border: none;
      background-color: #007bff;
      color: white;
      border-radius: 4px;
      cursor: pointer;
    }
    
    #search-button:hover {
      background-color: #0056b3;
    }
    
    .card-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
    }
    
    .card {
      border: 1px solid #ccc;
      border-radius: 4px;
      padding: 20px;
      margin: 10px;
      width: 300px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }
    
    .card h3 {
      margin-top: 0;
    }
    
    .card a {
      color: #007bff;
      text-decoration: none;
    }
    
    .card a:hover {
      text-decoration: underline;
    }