$transition_duration-scrollList_selected_item-bg: var(--semi-transition_duration-none); // 滚动列表选中选项-背景颜色-动画持续时间
$transition_function-scrollList_selected_item-bg: var(--semi-transition_function-easeOut); // 滚动列表选中选项-背景颜色-过渡曲线
$transition_delay-scrollList_selected_item-bg: 0ms; // 滚动列表选中选项-背景颜色-延迟时间
