/*头部*/
#headNav {
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 1001;
}

.red .icon:before {
    content:url(/file.php?f=source/default/wide/file.png&t=png&o=source&s=&v=1726813955);
}
.red .icon {
    position: absolute;
    top: 3px;
    margin-left: -25px;
    z-index: 999;
}