.banner{
    height:480px;
    background: url("http://heysou.oss-cn-shanghai.aliyuncs.com/f1f6d14c-5bdd-49f9-872f-589285d7f304.png");
    background-position: center 0px;
}
.productService{
    height:610px;
    background: url("http://heysou.oss-cn-shanghai.aliyuncs.com/1d9a9a9b-a0df-434a-bc85-192417023323.png");
    background-position: center 0px;
}
.hsTech{
    height:1042px;
    background: url("http://heysou.oss-cn-shanghai.aliyuncs.com/981bf5b8-a3a7-4483-9fc2-7869954e587e.png");
    background-position: center 0px;
}
.shopList{
    height:420px;
    background: url("http://heysou.oss-cn-shanghai.aliyuncs.com/173aac0e-721c-4af7-b792-d7d588e456dc.png");
    background-position: center 0px;
}