.container {
      display: flex;
      width: 1200px;
      margin: 50px auto;
      min-height: 400px;
  }

  .sidebar {
      width: 200px;
      border-right: 1px solid #f2f3f4;
      margin-right: 10px;
      /* background-color: #e9f0fc; */
      /* padding: 20px 0; */
  }

  .sidebar-item {
      display: flex;
      align-items: center;
      padding: 18px 20px;
      cursor: pointer;
      transition: background-color 0.3s;
      font-size: 14px;
      color: #303133;
  }

  .sidebar-item:hover {
      background: #ECF5FF;
  }

  .sidebar-item.active {
      /* background-color: #fff; */
      /* font-weight: bold; */
      color: #409eff;
  }

  .tab-content {
      width: 100%;
  }

  .sidebar-item i {
      margin-right: 10px;
      font-size: 16px;
  }

  .content {
      flex: 1;
      padding: 18px;
      /* background-color: #fff; */
  }

  .breadcrumbs {
      margin-bottom: 15px;
      color: #666;
      font-size: 14px;
  }

  .breadcrumbs a {
      color: #666;
      text-decoration: none;
  }

  .breadcrumbs a:hover {
      color: #007bff;
  }

  .content h2 {
      width: 100%;
      margin-bottom: 20px;
      font-size: 24px;
      color: #01101f;
  }

  .content p {
      font-size: 14px;
      color: #4e5969;
      width: 100%;
      line-height: 1.8;
      margin-bottom: 15px;
      text-indent: 2em;
  }

  .content h3 {
      margin: 20px 0 15px;
      font-size: 18px;
  }