.main{
    background-color: #fff;
    padding: 40px 15% 26px 15%;
    display: flex;
    justify-content: space-between;
}
.main .left{
    flex: 1.5;
    margin-right: 90px;
}
.main .right{
    flex: 1;
}
.main .right img{
    width: 100%;
    height: 424px;
}
.main .left .title{
    font-weight: bold;
    font-size: 42px;
    color: #1e1e1e;
    margin-top: 12px;
    margin-bottom: 33px;
}
.main .left .remarks{
    font-size: 16px;
    color: #3e3e3e;
}
.cooperation{
    padding: 80px 15% 60px 15% ;
}
.cooperation-title{
    font-weight: bold;
    font-size: 42px;
    color: #1e1e1e;
    text-align: center;
}
.cooperation-name{
    font-size: 14px;
    color: #777;
    text-align: center;
    
    margin-top: 15px;
}
.cooperation-flex{  
    display: flex;
    text-align: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.cooperation-flex .cooperation-item{
    width: 256px;
    font-size: 18px;
    color: #333;
    margin-top: 20px;
}
.cooperation-flex .cooperation-item img{
    width: 100%;
    height: 171px;
}
@media only screen and (max-width: 750px){
    .main{
        padding: 20px 5% 26px 5%;
        display: block;
    }
    .main .left{
        margin-right: 0px;
    }
    .main .right{
        margin-top: 20px;
    }
    .cooperation{
        padding: 30px 5% 60px 5%;
    }
    .cooperation-flex .cooperation-item{
        width: 162px;
    }
}