.float-btn{position:fixed;bottom:20%;right:40rpx;z-index:990}.float-btn.left_top{top:100rpx;left:30rpx}.float-btn.right_top{top:100rpx;right:30rpx}.float-btn.left_bottom{bottom:160rpx;left:30rpx;padding-bottom:constant(safe-area-inset-bottom);padding-bottom:env(safe-area-inset-bottom)}.float-btn.right_bottom{bottom:160rpx;right:30rpx;padding-bottom:constant(safe-area-inset-bottom);padding-bottom:env(safe-area-inset-bottom)}.float-btn .button-box{margin-bottom:20rpx;background:#ff0000;border-radius:50%;overflow:hidden}.float-btn .button-box:last-child{margin-bottom:0}.float-btn .button-box image{width:100%;height:100%}