.topBg{background:url(../images/subBg2.png) no-repeat;}

.list1 ul {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    margin-bottom: 60px;
  }
  .list1 ul li {
    width: 24%;
    background: #fff;
    padding: 30px;
    box-sizing: border-box;
    box-shadow: -4px -4px 8px 0 rgba(1, 1, 2, 0.1),
      4px 4px 8px 0 rgba(1, 1, 2, 0.1);
    border-radius: 15px;
    color:#484848;
    font-family: "SourceHanSansCN-Regular";
  }
  .list1 ul li img {
    display: block;
    height: 80px;
    margin: 0 auto;
  }
  .list1 ul li h4 {
    margin-top: 30px;
    margin-bottom: 20px;
    font-size: 24px;
    font-family: "SourceHanSansCN-Bold";
    text-align: center;
  }
  .list1 ul li h5 {
    line-height: 32px;
    margin-bottom: 20px;
    font-size: 21px;
  }
  .list2 {
    background: #f4f9ff;
    padding-top: 70px;
    padding-bottom: 100px;
  }
  .list2 h3 {
    font-size: 38px;
    text-align: center;
    font-family: "SourceHanSansCN-Bold";
    margin-bottom: 45px;
  }
  .list2 ul {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  .list2 ul li {
    width: 49%;
    margin-bottom: 30px;
    padding: 45px 50px;
    box-sizing: border-box;
    background: #ffffff;
    border-radius: 15px;
    font-family: "SourceHanSansCN-Regular";
  }
  .list2 ul li img {
    width: 240px;
  }
  .list2 ul li h4 {
    font-size: 34px;
    font-family: "SourceHanSansCN-Bold";margin-top:30px;margin-bottom: 20px;
  }
  .list2 ul li div {
    line-height: 32px;
    font-size: 20px;
  }