#app{font-family:Avenir,Helvetica,Arial,sans-serif,PingFangSC-Regular,PingFang SC;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#2c3e50;padding-top:0}#app ::-webkit-input-placeholder{color:grey}#app ::placeholder{color:grey}.top-nav{background-color:#fff;padding:0 .4rem;border-bottom:.02667rem solid #eee;position:fixed;top:0;left:0;right:0;z-index:100}.back-btn,.top-nav{height:1.17333rem;display:-webkit-box;display:-webkit-flex;display:flex;-webkit-box-align:center;-webkit-align-items:center;align-items:center}.back-btn{width:1.17333rem;-webkit-box-pack:center;-webkit-justify-content:center;justify-content:center}.back-icon{width:.42667rem;height:.42667rem}.nav-title{-webkit-box-flex:1;-webkit-flex:1;flex:1;text-align:center;font-size:.42667rem;font-weight:700}.top-nav+.router-view-container{padding-top:1.17333rem}