.main{
        background-image: url(https://richell-baby-cp.web-can.com/webcan-contents/uploads/2025/11/PC_back_1400x1000.png);
    }

.main main {
    background: url(https://richell-baby-cp.web-can.com/webcan-contents/uploads/2025/11/PC_title_960x300.png) center top no-repeat;
}

.container{
        background: #ffffff;
    }
    
@media screen and (max-width: 768px) {
    .main{
        background-image: url(https://richell-baby-cp.web-can.com/webcan-contents/uploads/2025/11/SP_back_640x1500.png);
    }

.main main {
    background: url(https://richell-baby-cp.web-can.com/webcan-contents/uploads/2025/11/SP_title_640x300.png) center top no-repeat;
}

.container{
        background: #ffffff;
    }

}