body {
    width: 100%;
    height: 100%;
    background:#fff;
    overflow-x: hidden;
    font-family: PingFang-SC-Regular;
    margin: 0;
    text-align: center;
}
.codeImg{
    width:100%;
}
.code1{
    width:100%;
    margin-top:1.52rem;
}
.code4{
 width:100%;
    margin:1.87rem 0;
}