An interactive and touch-friendly product carousel designed to cross-sell related and complementary items directly on cart or product pages, featuring a smooth, swipable layout on mobile and navigation arrow buttons on desktop, variant selectors and price formatting for each card, customizable badge displays (e.g. Sale, New), and frictionless AJAX Quick Add integrations for adding items directly to the cart, all styled with strict scoped CSS rules to prevent styling leaks or script conflicts.