.app-backtop{bottom:.6rem;cursor:pointer;height:1.48rem;opacity:0;position:fixed;right:.44rem;transform:scale(0);transition:.5s;z-index:99}.app-backtop.show{opacity:1;transform:scale(1)}.app-backtop img{height:.52rem;width:.52rem}@media only screen and (max-width:1024px){.app-backtop{bottom:1.88rem;height:1.28rem;position:fixed;right:8px;width:1.28rem}.app-backtop img{height:40px;width:40px}}