IPPUDO Style Design System (DESIGN.md, Japanese UI)

Design policy: Boldly use IPPUDO Red #cf000d for the header band, while keeping the content area clean with a white base. A two-typeface system of Montserrat for Latin text and Noto Sans JP for Japanese text creates the worldview of a modern ramen shop - Density: Content sections have generous whitespace. News and menu introductions are organized with card-style layouts - Keywords: Brand red, modern Japanese cuisine, Montserrat × Noto Sans JP, clean layout, global expansion - Characteristics: - The brand color is vivid red #cf000d. Used for the header background and navigation band, forming a