.body-bj{
    width: 100%;
    min-height: 400px;
    background: url(../images/qywh/qywh-bj.png) 0 0 no-repeat;
    overflow: hidden;
}

.qywh-box{
    width: 100%;
    background: #fff;
    margin-top: 50px;
    padding: 45px;
    height: 3230px;
}
.qywh-box img{
    width: 100%;
}