.xiaocao .body{position:relative;width:100vw;height:284vw;background:url(../../assets/img/main-0325.13782f22.jpg) no-repeat 0 0/100vw auto}.xiaocao .btn-gohy{position:absolute;display:block;top:142.5vw;z-index:1;width:56vw;left:22vw;height:11vw;margin:0 auto}