.float-btn{position:fixed;bottom:20%;right:40rpx;z-index:999}.float-btn.right_top{top:100rpx;right:30rpx}.float-btn.left_top{top:100rpx;left:30rpx}.float-btn.right_bottom{bottom:200rpx;right:30rpx;padding-bottom:constant(safe-area-inset-bottom);padding-bottom:env(safe-area-inset-bottom)}.float-btn.left_bottom{bottom:200rpx;left:30rpx;padding-bottom:constant(safe-area-inset-bottom);padding-bottom:env(safe-area-inset-bottom)}.float-btn .item{margin-bottom:20rpx;width:80rpx;height:80rpx}.float-btn .item:last-child{margin-bottom:0}.float-btn .item image{width:100%;height:100%}