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

Design policy: Place white content on black chrome (the outer frame). The header, left side rail, and footer are black #000000, and the working area inside is white #ffffff. The page's body itself is black, and white is "a surface placed on top of it" - About STARFLYER: Launched in 2006. With all-leather seats, monitors at every seat, and high-brand in-flight service, it champions "smart luxury." Black is a core brand concept, not decoration - Density: The practical site is high-density (fare tables, timetables, and seat-availability calendars stack vertically). The brand site is extremely low