Solaseed Air Style Design System (DESIGN.md, Japanese UI)

Design policy: Composed on a white background using only one typeface (Murecho), with colors narrowed down to two families: pistachio green and leaf green. CTAs are without exception complete pills (border-radius: 176px). The business flow of booking is presented lightly with high-saturation lime - Density: Information-heavy practical UI such as booking forms, fare tables, and baggage rules is set spaciously with 16px body text and 1.6 line height. The margins are wide for an airline site - Keywords: lime green, complete pill, single typeface, zero letter-spacing, 4px grid