CITIZEN Watch Style Design System (DESIGN.md, Japanese UI)

Design approach: A product-centric e-commerce site by Japan's leading watch manufacturer, founded in 1918. Built on a modern, clean gothic (sans-serif) foundation, using a dual-font system of Poppins (geometric sans-serif) and Noto Sans JP to differentiate Latin and Japanese text. Unlike Grand Seiko, it avoids ornamentation and emphasizes practicality and precision - Density: An e-commerce-style layout with product cards, filters, and category navigation packed closely together. Whitespace is moderate, but the information density is high - Keywords: product-first, dark navy, modern gothic, pre