SANU 2nd Home Style Design System (DESIGN.md, Japanese UI)

Design philosophy: A co-ownership service for having a second home in nature. With the tagline "Nature becomes another home," it builds the brand worldview through the warmth of earth colors and luxurious typography. It never uses pure black, and even for text color it adopts #322e21 (warm dark brown), maintaining a thoroughly warm-toned palette - Density: A relaxed, visual-driven brand site. Cabin photos and natural landscapes take center stage, with text kept to a minimum. Space is divided by switching between beige-toned surfaces - Keywords: Nature luxury, earth colors, warm brown, all-pill