@media screen and (max-width:768px) {
    .bzcggj_zi {
        margin-top: 40px;
        margin-right: 0;
        width: 96%;
        /*float: right;*/
    }
    .bzcggj{
        background: url(../images/dushuhui/dushuhuibanner.png) no-repeat 50% 0px;
        height: 400px;
        margin-top: 60px;
        background-size: 180%;
    }
    .bzcggj_bt{
        margin: 0 !important;
        padding: 0 !important;
    }
    .bzcggj_zw{
        padding: 0 !important;
        margin: 10px auto !important;
    }
}

@media screen and (min-width: 769px) {
    .bzcggj{
        background: url(../images/dushuhui/dushuhuibanner.png) no-repeat 50% 0px;
        margin-top: 60px;
        height: 900px;
    }
    .bzcggj_zi{
        margin-top: 74px;
        margin-right: 40px;
        width: 520px ;
        /*float: right;*/
    }

}

.kzdsh_bt{
    margin-top:100px;
}
.kzdsh_zw{
    line-height: 2;
}
.tupian1{
    width: 100%;
    border-radius: 10px;
    margin: 60px auto;
}