.hidden{opacity:0;visibility:hidden}.returntop{cursor:pointer;border:1px solid #eee;opacity:0;position:fixed;display:none;right:4px;top:480px;width:55px;height:55px;-webkit-box-shadow:0 6px 12px 0 rgba(73,73,73,.12);-moz-box-shadow:0 6px 12px 0 rgba(73,73,73,.12);box-shadow:0 6px 12px 0 rgba(73,73,73,.12);-webkit-border-radius:6px;-moz-border-radius:6px;border-radius:6px;z-index:40;text-align:center;overflow:hidden}.returntop.on{display:block;opacity:1}.returntop:hover{width:160px}.returntop p{width:55px;position:absolute;right:0;background:#fff}.returntop span{position:absolute;right:45px;font-size:18px;color:#333;width:112px;line-height:55px;text-align:center}.returntop p img{width:20px;margin:8px auto 0}.returntop p em{width:100%;display:inline-block;line-height:1;font-size:14px;color:#666}.open_ewm{left:4px;background:#fff;width:130px}.gzh_ewm,.open_ewm{position:fixed;top:650px;text-align:center;z-index:40}.gzh_ewm{left:0;width:25px;background:#3b77d1;color:#fff;cursor:pointer}.gzh_ewm p.opengzh img{padding:0 3px 0 3px}.gzh_ewm p.opengzh{color:#fff;line-height:1.5;padding:5px 0}.close_ewm{display:inline-block;float:right;padding:5px;cursor:pointer;width:24px}.header-avatar>span,.header-user{width:auto}.header-avatar .header-fun{width:160%}