.product-identity h1 {
  max-inline-size: 18ch;
  margin: 0;
  font-size: clamp(1.65rem, 2.4vw, 2.15rem);
  font-weight: 650;
  line-height: 1.1;
  letter-spacing: -.025em;
}

@media (max-width: 48rem) {
  .product-identity h1 { max-inline-size: none; font-size: clamp(1.6rem, 7vw, 2rem); }
}