.iframe_header{
    position: fixed;
    top: 0;
    z-index: 2;
    width: 100%;
    border: 0;
    height: 72px;
}
.header_box{
    height: 72px;
    margin: 0 auto;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;    
}
.hb_b1{
    display: flex;
    flex-direction: row;
    align-items: center;
}
.header_1{
    margin-right: 141px;
}
.hb_list{
    display: flex;
    height: 100%;
    align-items: center;
}
.hb_one{
    font-size: 18px;
    margin-right: 25px;
    height: 100%;
    line-height: 72px;
    position: relative;
}
.hb_one a{
    color: #333;
}
.hb_list .hb_one:last-child{
    margin-right: 0;
}
.hb_one.on{
    color: #023592;
    font-weight: bold;
}
.hb_one.on a{
    color: #023592;
}
.hb_one.on::after{
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 100%;
    background-color: #023592;
}
.hb_right{
    font-size: 24px;
    display: flex;
    align-items: center;
}
.hb_right span{
    font-weight: bold;
}