D-BROS Style Design System (DESIGN.md, Japanese UI)

Design policy: A product brand by the design office DRAFT. Characterized by a single font stack (Inter + Yu Gothic) and a vivid magenta (#fc00d5) accent. The entire site is unified with ultra-light typography at weight 300, a minimalist design that lets the sculptural beauty of the products speak through the content. Built on a Tailwind CSS-based utility structure, it maintains a graphic-designer aesthetic that eliminates ornamentation. - Density: A relaxed, product-showcase style. Magazine sections and product listings are presented with large visuals. An approach that keeps text volume low a