html{font-size:62.5%}body,ul,li,p,h1,h2,h3,h4,h5,dt,dd,dl{margin:0;padding:0;font-family:Microsoft YaHei}body{background:#fff}a{font-family:Microsoft YaHei;text-decoration:none}img{border:0}ul,li{list-style:none}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}img.banner{width:100%;margin:0 auto}section.container{width:100%;margin:0 auto}img.picfull{width:100%}img.pic30{width:30%;margin-left:35%}.margintop20{margin-top:2rem}.banner_m{width:100%;margin:0 auto}.banner_pc{width:100%;height:380px;overflow:hidden;background:url(../images/banner.png) center no-repeat;margin:0 auto}