/* Keep free product prices hidden, including after native option-price updates. */
.price-box:has([data-price-type="finalPrice"][data-price-amount="0"]),
.price-box:has([data-price-type="finalPrice"][data-price-amount="0.00"]),
.price-box:has([data-price-type="finalPrice"][data-price-amount="0.000000"]) {
    display: none;
}