.fl-first{
    width:240px;
    padding: 10px;
    background: #F5F9FC;
    height:750px
}
.mb30{
    margin-bottom: 30px;
    height: 320px;
}
.mb0{
    margin-bottom: 0;
    height: 300px;
}
.fr-first-top{
    width:900px;
    height:750px;
    padding-right:30px;
}
.height300{
    height: 300px;
}
@media screen and (max-width:1200px){
    .box .container1920 {
        min-width: 100%;
        height: 1.5rem;
        background: url(/images/01-12-bg-header.png) no-repeat center;
        background-size: cover;
        width: 100%;
    }
    .box .container{
        padding: 0.3rem !important;
    }
    .fl-first{
        width: 100%;
        padding: 0 0.2rem;
        height: auto;
    }
    .title1 {
        height: 0.8rem;
        line-height: 0.8rem;
        width: 100%;
    }
    .title1 .titlespan {
        height: 0.8rem;
        padding: 0 0px 0 0.6rem;
        font-size: 0.32rem;
    }
    .mb30{
        margin-bottom: 0.2rem;
        height: 4.5rem;
    }
    .mb0{
        height: 4.5rem;
    }
    .list_dbc li {
        height: 0.72rem;
        line-height: 0.72rem;
        font-size: 0.28rem;
    }
    .fr-first-top{
        width: 100%;
        height: auto;
        padding-right: 0;
    }
    .height300{
        height: auto;
    }
    .fr-first-top .height300>img{
        width: 100% !important;
        height: auto !important;
        margin-top: 0.2rem !important;
    }
    .dbctxt {
        line-height: 2;
        margin: 0.2rem 0;
        font-size: 0.28rem;
        text-indent: inherit;
    }
    .list9 li {
        width: 100% !important;
        height: 0.72rem;
        line-height: 0.72rem;
        font-size: 0.28rem;
    }
    .width100{
        width: 100% !important;
    }
}