/* 用户留言 */
  .float-tool {
    position: fixed;
    right: 0px;
    bottom: 50px;
    background-color: #fff;
    box-shadow: -3px 0 15px rgba(0, 0, 0, 0.3);
    width: 50px;
    z-index: 100;
  }
  .float-tool ul {
    list-style-type: none;
  }
  .float-tool ul li {
    cursor: pointer;
    margin: 16px 0;
    padding: 8px 0;
    text-align: center;
  }
  .float-tool ul li .ivu-poptip .ivu-poptip-rel img {
    width: 35px;
    height: 35px;
  }
  .float-tool ul li .iconfont {
    font-size: 25px;
    color: rgba(0, 0, 0, 0.5);
  }