.about_headImg{
    width: 100%;
    overflow: hidden;
    padding: 0;
}
 
.nav{
    width: 100%;
    height: 62px;
    display: flex;
    align-items: center;
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #999999;
    border-bottom: 1px solid #EAEAEA;
    text-transform:uppercase;
}
.nav a{
    color: #999999;
    text-decoration:none;
    margin: 0 8px;
}
.nav a:hover{
    color: #333333;
}
.certificationList{
    width: 100%;
    margin: 30px 0 37px 0;
    display: flex;
    flex-wrap: wrap;
}

.AuthenticationV{
    width: 275px;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url("https://static.huanziwang.com/hmweapp/Et_indexLog4.png?1") no-repeat;
    background-size: 100%;
    /* margin-right: 23px; */
    margin: 0 23px 20px 0;
    
}
.AuthenticationV>img{
    width: 259px;
    height: 484px;
    position: absolute;
}
.AuthenticationTips{
    background-color: rgba(0, 0, 0, 0.5);
    width: 229px;
    height: 484px;
    position: absolute;
    z-index: 110;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 30px;
    padding: 0 15px;
    text-align: center;
}

/*大图*/
.bigImg-bj{
    position: fixed;
    top: 0;
    width: 100%;
    height: 100%;
    background:rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1111;
}
.bigImg_div{
    /* height: 90%; */
    background-color: #EAEAEA;
    position: relative;
    display: flex;
    justify-content: center;
    padding: 10px;
}
.bigImg_div>img{
    width: 100%;

}
.notBig{
    position: absolute;
    top: -18px;
    right: -18px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    z-index: 8040;
    background: url("https://static.huanziwang.com/hmweapp/Et_fancybox_sprite.png") no-repeat;
    background-size: 100%;
}