#backToTop,.hmod-alicloud-contact-sales-support .btn-phone{z-index:9980}#backToTop{position:fixed;right:20px;bottom:40px;width:42px;height:42px;transition:background .3s ease-in;background-color:#fff;box-shadow:0 2px 25px 0 rgba(0,0,0,.1);color:#FF6A00;border-radius:42px;padding-top:10px;text-align:center;cursor:pointer}#backToTop.hide{display:none}#backToTop:hover{color:#FF791A}#backToTop img{width:16px}