/*站内信*/
.per-envelope {
    float: right;
    position: relative;
    margin-top: 10px;
    width: 35px;
    height: 18px;
}
.per-envelope a {
    margin: 0 auto;
    display: block;
    width: 25px;
    height: 17px;
    background: url(../img/envelope.png) no-repeat;
    text-indent: -99999px;
}
.per-envelope i {
    position: absolute;
    left: 18px;
    top: -7px;
    padding: 0 5px;
    background: #c20017;
    color: #fff;
    font-size: 12px;
    line-height: 1em;
    border-radius: 3px;
    border: 1px solid #fff;
}