In the meantime, I’ve managed to resolve this situation, and I’ll leave it here for anyone who’s interested
https://snipboard.io/RLHPjQ.jpg
.wo_productcode :not(.stl_codenum) {
color: var(--color-gray-800);
font-weight: 600; }
.wo_productcode_second :not(.stl_codenum_second) {
color: var(--color-gray-800);
font-weight: 600; }