.top-pte {
    height: 0;
    padding-bottom: 28%;
    min-width: 1200px;
    min-height: 313px;
    max-height: 500px;
    max-width: 1920px;
    background: url(/Images/Manufacture/Software/syzz-rjxt-bj.jpg) no-repeat center top;
    background-size: 100%;
    margin: 0px auto;
}

.cnt-tlt {
    width: 100px;
    height:80px;
    float: left;
    margin-top: 240px;
    border-bottom: 4px solid #fff;
}

.cnt-lab {
    line-height:80px;
    font-size: 24px;
    color: #fff;
}
.mdd-cnt {
    width:550px;
    height:370px;
    float:left;
    margin:25px;
}

.mdd-epn {   
    height: 370px;
    width: 550px;
    background-repeat: no-repeat;
    background-position: center center;
    cursor:pointer;
}

@media only screen and (max-width: 1024px) {
    .top-pte {
        height: 0;
        padding-bottom: 28%;
        min-width: 1000px;
        min-height: 260px;
        max-height: 500px;
        max-width: 1920px;
        background: url(/Images/Manufacture/Software/syzz-rjxt-bj.jpg) no-repeat center top;
        background-size: 100%;
        margin: 0px auto;
    }

        .top-pte > div {
            width: 1000px !important;
        }

    .cnt-tlt {
        width: 100px;
        height: 80px;
        float: left;
        margin-top: 100px;
        border-bottom: 4px solid #fff;
    }

    .cnt-lab {
        line-height: 80px;
        font-size: 24px;
        color: #fff;
    }

    .mdd-cnt {
        width: 800px;
        height: 538px;
        float: left;
        margin: 50px 100px;
    }

    .mdd-epn {
        width: 800px;
        height: 538px;
        background-repeat: no-repeat;
        background-position: center center;
        background-size: 100%;
        cursor: pointer;
    }
}