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

Design policy: A restrained, trustworthy design that puts products center stage, using a neutral light gray #f2f2f2 background, ghost buttons (outline only), and clean Noto Sans JP typography - Density: Body text uses line-height 1.5, which is standard. Headings also uniformly apply line-height 1.5, prioritizing homogeneous rhythm over density - Keywords: Neutral gray, product focus, ghost CTA, the neatness of Noto Sans JP, the trustworthiness of a home appliance manufacturer - Characteristics: - Adopts Noto Sans JP for Japanese text. As an open font distributed via Google Fonts, it renders id