.companyNav .item:nth-child(4) .line{
    display: block;
}
/*banner开始*/
.banner{
    height: 2.83rem;
    margin-top: 0.52rem;
}
.banner img{
    width: 100%;
    height: 2.83rem;
}
/*main开始*/
.main {
    /*margin-top: 0.52rem;*/
}
.main img {
    width: 100%;
    float: left;
}
.main .img2{
    height: 6.7rem;
}
.main .img3{
    height: 8.31rem;
}
.main .img4{
    height: 8.49rem;
}
.main .img5{
    height: 8.49rem;
}
.main .img6{
    height: 12.12rem;
}