nav{position:fixed;top:170px;right:-185px;background-image: url(../images/bg-kefu.png);width:290px;height:370px;display:block;padding-top:54px;}
nav .kefu{margin-top:24px;margin-left:124px;overflow:hidden;}
nav .kefu img{ float:left;line-height:40px;}
nav .kefu .kefu-num{float:left;font-size:14px;margin-left:14px;}
nav .kefu .kefu-num p{color:#fff;}
nav .kefu-code{margin-left:124px;margin-top:30px;}