Afternoon Tea Style Design System (DESIGN.md, Japanese UI)

Design policy: Establishes deep green (#006450) as the brand color, and expresses a "warm lifestyle brand with a sense of breathing room" through wide letter-spacing (1.12px) plus alternating white and light gray sections. Text is primarily the soft gray #555555 - Density: Medium information density. A three-layer structure of hero banner + content cards + notices delivers information while maintaining ample whitespace - Keywords: deep green, Dosis geometric, wide letter-spacing 1.12px, warmth, lifestyle, feminine, sharp-corner CTA - Characteristics: - Two font systems — "Noto Sans JP" (Google