SORANO HOTEL Style Design System (DESIGN.md, Japanese UI)

Design policy: Mincho typeface, zero border-radius, zero shadows. A quiet typographic style for a wellness hotel, using generous letter-spacing and letting whitespace carry the reading experience - Density: Low. A full-width layout with a 1860px container, with 100–220px of whitespace between sections - Keywords: Mincho (Noto Serif JP), 0.1em letter-spacing applied across the board, hero at 0.3em, weight 350, navy #274875, off-white ground #f9f8f6