.concept-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:20px 0 0}
.concept-pair figure{margin:0;min-width:0;border-radius:8px;overflow:hidden}
.concept-pair img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:contain}
@media(max-width:640px){.concept-pair{grid-template-columns:1fr}}