/* Le lien-card hérite du style de .compare-col et reste propre au focus */
.compare2 .compare-col{
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.compare2 .compare-col:focus-visible{
  outline: 0;
  box-shadow: 0 0 0 3px rgba(184,159,130,.5), 0 16px 40px rgba(0,0,0,.12);
  border-radius: 18px;
}

/* La vignette n’a pas d’entourage (on garde ce que tu avais déjà) */
.compare2 .compare-col .thumb .image-preview{ display:block; background:transparent; border:0; box-shadow:none; padding:0; }
.compare2 .compare-col .thumb img{ width:100%; height:auto; object-fit:contain; display:block; }