Kadokawa Culture Museum Style Design System (DESIGN.md, Japanese UI)

Design policy: On white ground, thick sumi contours and vertical headings. No ornamentation — a Japanese presence created solely through line weight (3px) and text direction (vertical) - About the Kadokawa Culture Museum: A "museum" where a library, art museum, and museum share one building. Because the range of content it handles is extremely broad (light novels, manga, contemporary art, classical texts), the UI side is kept thoroughly neutral, leaving color to the exhibition visuals - Density: Medium to high density. The top page stacks vertically: KV carousel → Important Notices (sumi band)