.banner{
    width: 100%;
    height: 300px;

}
.banner img{
    height: 300px;
    width: 100%;
}
.content{
    margin-top: -60px;
    background: #fff;
}
.about{
    width: 1170px;
    margin: 0 auto;
    display: flex;
    flex: 1;
    flex-wrap: wrap;
}

.business-item{
    width: 210px;
    height:290px;
    margin-right: 30px;
    margin-bottom: 30px;
}
.business-item:nth-child(5n){
    margin-right: 0;
}
.business-item .business-box{
    display: flex;
    align-items: center;
    justify-content: center;
    width: 210px;
    height:210px ;
    background: #F5F5F5;
}
.business-item img{
    width: 210px;
    height:210px ;
}
.business-item h2{
    font-family: '\5B8B\4F53';
    text-align: center;
    height: 76px;
    width: 210px;
    line-height: 76px;
    font-size: 28px;
    background: #fff;
    font-weight: 700;
    border: 2px solid #F5F5F5;
    border-top:none ;
}
.business-item:hover h2{
    background: #0B308D;
    color: #fff;
    border: 2px solid #0B308D;
    border-top:none ;
}