@media screen and (max-width: 1600px) {
    .pcin_menu ul li .pcin_menu_tit{
        font-size: 12px;
    }
}
@media screen and (max-width: 1400px) {
    .pcin_menu ul li .pcin_menu_tit{
        font-size: 12px;
    }
    .service_box{
        height: 12.5vw;
    }
}