.topBg{background: url(../images/subBg3.png) no-repeat;}

.list1 ul {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    margin-bottom: 60px;
  }
  .list1 ul li {
    padding-top: 180px;
    padding-left: 30px;
    padding-right: 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: 25px;
    color: #ffffff;
    font-family: "SourceHanSansCN-Regular";
    height: 470px;
    width: 375px;
    background-size: 375px 470px;
  }
  .list1 ul li:first-child {
    background: url("../images/db1.png") no-repeat top;
  }
  .list1 ul li:nth-child(2) {
    background: url("../images/db2.png") no-repeat top;
  }
  .list1 ul li:nth-child(3) {
    background: url("../images/db3.png") no-repeat top;
  }
  .list1 ul li:last-child {
    background: url("../images/db4.png") no-repeat top;
  }
  .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: 20px;
  }
  .list1 p{font-size: 21px;text-align: center;}
  .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: 32%;
    margin-bottom: 30px;
    padding: 35px 35px 70px 35px;
    box-sizing: border-box;
    border-radius: 15px;
    font-family: "SourceHanSansCN-Regular";
    background-color: #ffffff;
    background-size: auto 74px;
    background-position: 95% 90%;
    background-repeat: no-repeat;
  }
  .list2 ul li:first-child {
    background-image: url("../images/dbb1.png");
  }
  .list2 ul li:nth-child(2) {
    background-image: url("../images/dbb2.png");
  }
  .list2 ul li:nth-child(3) {
    background-image: url("../images/dbb3.png");
  }
  .list2 ul li:nth-child(4) {
    background-image: url("../images/dbb4.png");
  }
  .list2 ul li:nth-child(5) {
    background-image: url("../images/dbb5.png");
  }
  .list2 ul li:last-child {
    background-image: url("../images/dbb6.png");
  }
  .list2 ul li h4 {
    font-size: 27px;
    font-family: "SourceHanSansCN-Bold";
    margin-bottom: 15px;
    color: #484848;
  }
  .list2 ul li div {
    line-height: 32px;
    font-size: 20px;
    color: #656565;
  }
  .list3 {
    padding: 0px 0 70px 0;
  }
  .list3 ul {
    display: flex;
    justify-content: space-between;
  }
  .list3 ul li {
    width: 32%;
    background: #2f90e7;
    color: #ffffff;
    padding: 30px 65px;
    box-sizing: border-box;
    border-radius: 15px;
    display:flex;justify-content: space-between;align-items: center;
  }
  .list3 ul li img{height:65px;margin-right:40px;}
  .list3 ul li div{flex:1;}
  .list3 ul li div h4{font-size:29px;margin-bottom: 10px;}
  .list3 ul li div a{font-size:18px;cursor: pointer;color:#ffffff;}