h2:contains("Nos Produits"), 
.collection-products-title, 
.section__title {
    display: none !important;
    height: 0 !important;
    visibility: hidden !important;
    opacity: 0 !important;
    position: absolute !important;
    top: -9999px !important;
}
/* Méthode de suppression radicale */
*[class*="product-title"],
*[class*="section-title"],
*[id*="product-title"] {
    display: none !important;
    visibility: hidden !important;
    position: absolute !important;
    opacity: 0 !important;
    height: 0 !important;
    width: 0 !important;
    overflow: hidden !important;
}
/* Masque le titre "Nos Produits" */
.collection-title,
h2:contains("Nos Produits") {
    display: none !important;
    height: 0 !important;
    visibility: hidden !important;
    opacity: 0 !important;
    position: absolute !important;
    overflow: hidden !important;
}


<style>
  /* Réassurance - Ciblage précis */
  .shopify-reassurance__item-text,
  .shopify-reassurance__item,
  .reassurance-item__text {
    color: white !important;
    font-family: 'Poppins', sans-serif !important;
  }

  /* Titres de collections */
  .collection-title,
  .product-grid-item__title,
  h2[class*="collection-title"] {
    color: black !important;
    font-family: 'Playfair Display', serif !important;
    font-size: 1.8rem !important;
    font-weight: 600 !important;
  }
</style>