.ui-bg[data-v-38199df4]{background-position:50%;height:200px}.topic-bar[data-v-38199df4]{position:fixed;left:0;right:0;bottom:0;z-index:100;background:#191919;height:99px}.topic-bar .auto-box[data-v-38199df4]{text-align:center;padding-top:30px}