BASE FOOD Style Design System (DESIGN.md, Japanese UI)

Design approach: Expresses the positivity of "deliciousness, convenience, and health" through the strength of a black hero section and a warm yellow #fac83c pill CTA. Builds a clean yet warm D2C experience with white product surfaces and a warm-toned neutral #f0f1eb - Density: Body line-height is a standard 1.5. Centered on product carousels and large-screen visuals, prioritizing visual impact over information density - Keywords: Warm yellow, D2C natural, pill CTA, black hero + white surface contrast, trustworthiness of complete nutrition food - Characteristics: - Uses mfw-pishiigothicstdn (Pi