.go-back{width:2rem;height:1.6rem;border-top-right-radius:1rem;border-bottom-right-radius:1rem;background:rgba(255,151,106,.5);position:fixed;top:2rem;left:0;z-index:3000;color:#fff;text-align:center;line-height:1.5rem;box-shadow:.02rem .02rem .1rem #999}.icon-chexiao{font-size:1.2rem}