Soup Stock Tokyo Style Design System (DESIGN.md, Japanese UI)

Design policy: Refined, tranquil minimalism with Mincho typefaces in the leading role. Eliminating decoration, expressing warmth through the beauty of letterforms and whitespace - Density: Information density is low. A gallery-style layout that values "ma" (negative space) through generous whitespace and relaxed line spacing - Keywords: Mincho typeface, tranquil, warmth, wide letter spacing, minimal - Characteristics: Ryumin Mincho dominates the entire site. Headings, navigation, and body text are all unified in Mincho, with Gothic typefaces relegated to a supplementary role. The wide letter-s