html,
  body {
    position: relative;
    height: 100%;
  }

  body {
    background: rgb(255, 255, 255);
    font-size: 12pt;
    color: #000;
    margin: 0;
    padding: 0;
  }

    /* 联系我们跳转箭头 */
    .to_detail {
      display: inline-block;
      color: white;
      cursor: pointer;
      transform: translateX(0px);
      transition: transform 0.4s;
    }
  
    .to_detail:hover {
      text-decoration: none;
      color: white;
      transform: translateX(14px);
      transition: transform 0.4s;
    }
  
    .arr_line {
      display: inline-block;
      width: 60px;
      height: 1px;
      background: rgba(255, 255, 255, 1);
      position: relative;
      left: 13px;
      bottom: 4px;
    }
  
    .arr {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-right: 1px solid #fff;
      border-bottom: 1px solid #fff;
      transform: rotate(-45deg);
    }