Yes, that's correct. The List page usually has these classes which you can substitute instead of those for the Detail page:
.products.collection-content-wrapper .grid-main-meta .grid-title
So it would be something like...
.products.collection-content-wrapper .grid-main-meta .grid-title {
font-size:12px;
line-height: 1.8em;
}
.products.collection-content-wrapper .grid-main-meta .grid-title:first-line {
font-size: calc(.36vw + 1rem);
}
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