Yamaha (Yamaha Corporation) Style Design System (DESIGN.md, Japanese UI)

Design policy: A composition in which a long-established manufacturer with over 135 years of history keeps the "musical instrument brand" loyalty restrained, maintaining corporate prestige while landing on a tasteful product-catalog-like tone. Yamaha Purple #4b1e78 is placed as the protagonist, with everything else built from near-achromatic colors + pale lavender bands - Density: Body text at 16px / line-height 1.75 (28px) is loose for a corporate site, a typographic choice tilted toward long-form philosophy statements and news release reading material - Keywords: Yamaha Purple, pill CTA, neu