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

Design policy: A modern corporate design composed of Canon Red #cc0000 as the brand accent, refined typography unified with Noto Sans JP, and pill-shaped buttons (radius 40px) - Density: Body text line-height 1.5 (24px / 16px), standard. Large headings (38px) and a spacious card layout create a premium feel - Keywords: Canon Red, Noto Sans JP unified, pill buttons, modern corporate, premium feel - Characteristics: - Uses only Noto Sans JP for Japanese text. Consistent display regardless of environment - Canon Red #cc0000 is used as the background for the "For Individuals" and "For Business" ca