FELISSIMO Style Design System (DESIGN.md, Japanese UI)

Design policy: A clean, friendly e-commerce site based on white. The cyan-blue accent color expresses "fun" and "discovery." A visual-centric layout that makes product photos the star - Density: Information density is high as a product catalog, but the white background and ample whitespace reduce any sense of crowding - Keywords: Friendly, clean, cyan blue, catalog-style, handmade - Characteristics: Theme tokens in the --skin-* family and base tokens in the --color-* family are managed in two layers via CSS Custom Properties. Based on Yu Gothic 500 (Medium) with palt applied. The brand color c