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

Design approach: A Japanese luxury cosmetics brand developed by Kanebo (Kao Group). The design pursues an editorial yet warm sophistication, avoiding a clinical or sterile impression. Neue Helvetica World (a licensed Monotype font) is combined with Yu Gothic as a fallback - Density: Relaxed, editorial style. Large visuals take the leading role, with text added discreetly. Despite being a beauty brand, the composition is closer to a magazine spread - Keywords: Warm sophistication, dual theme (dark/light), editorial, warm gray, warm luxury - Characteristics: The dark/light dual-theme structure i