Benesse Art Site Naoshima Style Design System (DESIGN.md, Japanese UI)

Design policy: The entire site is set in a single Mincho typeface. Zero rounded corners, virtually zero shadows, surfaces are only white and very light gray. Text is small (body 14px, labels 12px), photos are placed large - Density: Medium to high. The top page has 230 visible text elements, facility pages have 328. Text is packed small, organized with 1.5 line height - Keywords: I-OTF-UD Mincho, single weight, zero rounded corners, Setouchi blue, hardcoded px