#main{
    background: url("http://imgcdn.fabricschina.com.cn/images/20190702/1562056696501.png");
    padding-top: 75px;
}
.banner{
    height: 450px;
    background: url("http://imgcdn.fabricschina.com.cn/images/20190702/1562056656412.png") no-repeat center center;
}
.banner img{
    display: block;
    margin: 0 auto;
}
.content{
    width: 1170px;
    margin: 35px auto;
}
.reports .group{
    overflow: hidden;
}
.group .number{
    float: left;
    width: 30%;
    text-align: center;
}
.group .list{
    float: left;
    width: 70%;
}
.list .item{
    float: left;
    width: 320px;
    height: 180px;
    background-color: #999999;
    margin: 25px 40px;
}
.list .item img{
    display: block;
    width: 320px;
    height: 180px;
}