*{margin:0;padding:0;box-sizing:border-box}em,i{font-style:normal}li{list-style:none}img{border:0;vertical-align:middle;max-width:100%;height:auto}@media screen and (max-width:600px){body{font-size:14px}}button{cursor:pointer}a{text-decoration:none}a,a:hover{color:#fff}button,input{font-family:Microsoft YaHei,Heiti SC,tahoma,arial,Hiragino Sans GB,"\5B8B\4F53",sans-serif;border:0;outline:none}body{-webkit-font-smoothing:antialiased;background-color:#fff;color:#666}.br{height:22px;background-color:#fafafa}.hide,.none{display:none}.clearfix:after{visibility:hidden;clear:both;display:block;content:".";height:0}.clearfix{*zoom:1}img:not([src]),img[src=""]{opacity:0}