.part4Box {display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1rem;}
.part4Box > li {padding: 1.5rem; width: calc(50% - 0.5rem); border: 1px solid #eee; border-radius: 1rem;}

@media (max-width:768px){
	.part4Box > li {width: 100%;}
}