.contact-nav {
    /*height: 290px;*/
    width: 84px;
    position: fixed;
    bottom: 25%;
    right: -10px;
    /*margin-top: -145px;*/
    z-index: 99999;
}
#wechat{
    margin-top: -10px;
    width: 84px;
    height: 84px;
    vertical-align: middle;
    text-align: center;
    padding: 10px;
    cursor: pointer;
}
#wechat>div:hover .wechat_wrap{
    display: block;
}
#wechat>div{
    position: relative;
    background: white;
    height: 64px;
    border-radius: 6px;
    box-shadow: 2px 2px 10px 0px rgb(49 52 69 / 10%);
    padding-top: 8px;
}
.wechat_wrap{
    position: absolute;
    left: -195px;
    top: -80px;
    width: 180px;
    height: 220px;
    padding: 20px 30px;
    text-align: center;
    background: white;
    border-radius: 8px;
    box-shadow: 2px 2px 10px 0px rgb(49 52 69 / 10%);
    display: none;
    color: #73879C;
}
.wechat_wrap:after{
    content: '';
    display: block;
    width:0;
    height:0;
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    border-top:10px solid transparent;
    border-bottom:10px solid transparent;
    border-right:10px solid transparent;
    border-left:10px solid white;
}
.wechat_wrap img{
    width: 120px;
    height: 120px;
}
.wechat_wrap p{
    line-height: 30px;
}