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

Design policy: Quietness and whitespace. With almost no saturation, only product photos and thin lines are placed on the warm off-white #f8f5f5. The lines are thin, and the letter-spacing is wide. - About AYURA: A skincare brand founded in 1994. It carries vocabulary such as "meditation" and "inner balance," and its unhurried screen design is itself the brand's voice. - Density: Low. One message per section. Cards are arranged, but generous whitespace is left between elements. - Keywords: #f8f5f5 off-white, #3c3c3c ink, wide Poppins letter-spacing, pill outlines, Noto Serif JP leads, zero shad