D&DEPARTMENT Style Design System (DESIGN.md, Japanese UI)

Design policy: Editorial × catalog × mingei (folk craft), in line with the "Long Life Design" concept. Balances a textbook-like, well-ordered grid with the typographic flow of a cultural magazine - Density: Medium-to-high information density. A layout feel derived from d design travel, placing product + place of origin + story together on a single page - Keywords: Long life, editorial, Hiragino UD, Mincho, earth colors, mingei, 47 prefectures, Amiri - Characteristics: Adopts Hiragino UD Kaku Gothic (a universal design typeface) for body text (prioritizing readability). Product headings and fea