body,dd,div,dl,dt,h1,h2,h3,h4,li,ol,ul{margin:0;padding:0;font-family:PingFangSC-Medium,sans-serif;font-weight:500}#app,body,html{height:100%}li,ol,ul{list-style:none}img{border:0;vertical-align:middle}body{color:#000;background:#fff}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}