a,body,button,div,header,html,i,img,label,li,p,section,span,ul{margin:0;padding:0;border:0;vertical-align:baseline;background:transparent;outline:none;-webkit-box-sizing:border-box;box-sizing:border-box}*,:after,:before{-webkit-box-sizing:border-box;box-sizing:border-box}body{margin:0;font-size:.14rem;font-family:-apple-system,BlinkMacSystemFont,Helvetica Neue,Helvetica,Segoe UI,Arial,Roboto,PingFang SC,miui,Hiragino Sans GB,Microsoft Yahei,sans-serif}ol,ul{list-style:none}html{-webkit-tap-highlight-color:transparent}button,input,textarea{color:inherit;font:inherit}img{border:0;max-width:100%}.flex{display:-webkit-box;display:-ms-flexbox;display:flex}.back-home{margin-bottom:.1rem;color:#fff;font-size:.14rem;display:inline-block;position:relative;z-index:9}#tiyanApp{margin:0 auto}.is-pc .md-tab-bar{width:3.75rem}