.g_cat .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
}

.banner_ad .img2 {
    grid-column-start: 2;
    grid-row: span 2 / span 2;
    grid-row-start: 1;
}

@media(max-width:768px){
.banner_ad .img2 {
    grid-column-start: 1;
    grid-row: span 2 / span 2;
    grid-row-start: 3;
}
}