KURKKU FIELDS Style Design System (DESIGN.md, Japanese UI)

Design policy: Category-based color coding is the defining feature. A unique background color is assigned to each content area — INFORMATION / EAT / ART / EXPERIENCE / EVENT / FARM / STAY, etc. — and the colors themselves function as navigation. A nature-derived earth color palette visually unifies "land, food, and art" - Density: Body text 12–13px / line-height 2.0 / letter-spacing 0.1em. Small font sizes with generous line height and letter spacing create a quiet, courteous impression. The sense of open space on the farm is reflected in the typography - Keywords: category color coding, Noto