.qr {width:140px;font-size:14px;cursor:pointer;display:none;}
.qr_li {line-height:32px;height:32px;padding-left:20px;overflow:hidden;}
.qr_on {line-height:32px;height:32px;padding-left:20px;overflow:hidden;background:#FFFFFF;border-radius:0 10px 10px 0;}
.nav{    height: 21px;
    font-size: 16px;
    border-left: 4px solid #b61d1d;
    color: gray;
    margin: 12px 0px;
    padding: 0px 0px 0px 10px;}
.nav a{    color: gray;}
.m{    width: 1200px;font-size: 14px;
    margin: 0px auto;}