Japanese Motorcycle Brands & Custom Culture Timeline Poster AI Image Prompt

Japanese infographic timeline poster. Canvas: landscape 4:3 educational chart with a clean white background, red grid lines, bold red title bar, small motorcycle illustrations, and dense Japanese annotations. Headline: {argument name="headline text" default="④ 日本のバイクメーカー・名車と見た目系カスタム文化 年表"}. Subtitle: Compare main events of famous motorcycles and manufacturers (upper section) with visual custom/dress-up culture (lower section) in a timeline. Layout: Upper two thirds is a top timeline matrix comparing 4 Japanese motorcycle manufacturers across 8 decade columns (1950, 1960, 1970, 1980, 1990, 2000, 2010, 2020), each cell showing year, model name, and small detailed side-view motorcycle illustration, with 4 rows (HONDA, YAMAHA, SUZUKI, Kawasaki) each containing 8 entries (some empty to preserve grid alignment). Lower third is a bottom culture timeline with 7 horizontal culture rows (bosozoku/bike gang, old school gang, chopper/bobber, American/cruiser, big scooter custom, cub/mini-bike custom, neoclassic/retro), pale colored category labels on left with icons and pink arrows showing approximate periods of popularity. Right sidebar: trivia/facts column with 8 facts, red bullet dots, dotted separators, and 8 small motorcycle or emblem illustrations. Footer: 2 legend items (black/gray = major models/events, red/pink = culture/custom expansion). Visual style: bold Japanese sans-serif typography, red headings, compact black labels, clear chart hierarchy; colors: dominant red and white, pale pink arrows, light beige/pink/green/lavender category strips, maker logos in brand colors; illustration style: small crisp semi-realistic side-view motorcycle drawings with shadows, varied colors and eras, infographic clarity rather than photorealism; rendering: high-resolution print-ready poster, sharp legible text, neat grid alignment, educational magazine style.