.app-down{display:flex;flex-direction:column;justify-content:space-between;align-items:center;height:100vh;padding-top:1.86667rem;box-sizing:border-box;background:url(../img/bg_down.964521fb.png) no-repeat;background-size:100% 100%}.app-down .logo{display:block;margin:0 auto;width:2.77333rem}.app-down .down-title{text-align:center;width:100%;font-size:.64rem;color:#fff;padding-top:.33333rem}.app-down .down-btn{margin:.77333rem 0 1.01333rem;width:6.50667rem;padding:.34667rem 0 .4rem;border:1px solid #fff;text-align:center}.app-down .down-btn span{line-height:.58667rem;font-size:.42667rem;color:#fff}.app-down .img-bottom{width:100%}.app-down .shade-layer{position:fixed;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,.8)}.app-down .shade-layer img{display:block;margin:.93333rem auto;width:8.45333rem}@media screen and (min-width:364px){.app-down{overflow:hidden}}