.lh-side-menu {
  width: 280px;
  overflow: auto;
  box-shadow: 1px 1px 1px #ccc;
  position: relative;
  display: flex;
  flex-shrink: 0;
  .collapse-menu {
    flex: 1;
    cursor: pointer;
    &:hover {
      background-color: #f2f2f2;
    }
    .menu-icon {
      position: absolute;
      right: 8px;
      top: 10px;
      cursor: pointer;
    }
  }

  .close-icon {
    position: absolute;
    right: 15px;
    top: 16px;
    cursor: pointer;
  }
  .head-title {
    font-size: 1rem;
    font-weight: bold;
    padding: 15px 40px 10px 30px;
    border-bottom: 1px solid #ccc;
    margin-bottom: 10px;
    .version {
      position: absolute;
      margin: 3px 0 0 3px;
      font-size: 10px;
      font-weight: normal;
      display: inline-block;
      background-color: #666;
      color: #fff;
      border-radius: 4px;
      padding: 0px 4px;
    }
  }
  .menu-item {
    padding: 10px 10px 10px 30px;
    font-size: $font-size-sm;
    line-height: $font-size-28;
    .collapse-title {
      user-select: none;
      font-weight: 600;
      cursor: pointer;
    }
    i.icon {
      position: absolute;
      margin: -2px 0 0 -20px;
    }
    a {
      color: #444;
    }
    a:hover {
      color: #ec7211 !important;
      text-decoration: none;
    }
    .active {
      a {
        font-weight: 600;
        color: #ec7211;
      }
    }
  }
  .external-link {
    margin: 20px;
    border-top: 1px solid #ccc;
    padding: 20px 5px 20px;
    a {
      color: #444;
    }
  }
}