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

Design policy: White background with a single color, YANMAR Premium Red #dc1e37. Corner radii are hard, at most 10px, and spacing is carved in multiples of 7px. Heavy-industry products — agricultural machinery, construction equipment, marine engines — are shown through photography, and the UI is pulled back thoroughly. - Density: Body text 14px / line-height 1.8, a business-oriented density. Because it handles product specs, filtered search, and model-number lists, it prioritizes scannability over decoration. - Keywords: Premium Red, 7px grid, 2–5px corner radii, opacity ramp, Web Components