.menu{
    margin-bottom: 20px;
}
.fr_users{
    width: auto;
    height: 32px;
    display: flex;
}
.top_login{
    width: auto;
}
.top_login .tl_user {
    margin-top: 9px;
}
.tl_login{
    margin-top: 9px;
}

.exit01{
    background:url(../images/icon.png?t=e67671e6) no-repeat 5px -3px;
    padding-left:24px;
    float: right;
}

#go_top {
    position: fixed;
    left: 92%;
    bottom: 200px;
    z-index: 99;
}
.go_top_a .box{
    width: 50px;
    height: 50px;
    border-radius: 4px;
    border: 1px solid #E6E8EC;
    display: flex;
    text-align: center;
    flex-direction: column;
    justify-content: center;
    background: #FFFFFF;
    font-weight: 500;
    font-family: PingFangSC-Regular, PingFang SC;
}
.box .box_img{
    width: 17px;
    height: 17px;
    background: url(../images/little_topb.png?t=181cd41b) no-repeat;
    background-position: center;
    background-size: 100%;
    margin-left: 17px;
}
.box:hover{
    color:#3695FF;
}

.box:hover .box_img{
    background: url(../images/little_top.png?t=181cd41b) no-repeat;
    background-position: center;
    background-size: 100%;
}