$animation_duration-popover-in: 100ms;//popover-弹出动画-动画持续时间
$animation_duration-popover-out: 100ms;//popover-收起动画-动画持续时间


$animation_function-popover-in: cubic-bezier(0.215, 0.61, 0.355, 1);//popover-弹出动画-动画插值函数
$animation_function-popover-out: cubic-bezier(0.215, 0.61, 0.355, 1);//popover-收起动画-动画插值函数