#app{font-family:PingFangSC-Regular,PingFang SC}.nav-bar{height:44px;background-color:#fff;position:sticky}.nav-bar,.nav-bar .title{width:100%;display:flex;align-items:center;top:0}.nav-bar .title{height:100%;position:absolute;z-index:1;left:0;justify-content:center}.left-btn{padding-left:14px;position:relative;z-index:9}p{margin:0;padding:0;list-style:none}