科普图表：辣椒辣度天梯

Infographic poster ranking chili peppers on the Scoville heat scale, front-view flat presentation. Layout: a tall vertical bar chart at the center with fifteen ascending bars, each topped with a flat vector illustration of the pepper variety: bell pepper (0), jalapeño (2,500-8,000), serrano, habanero (100,000-350,000), scotch bonnet, bird's eye, ghost pepper (over 1,000,000), Carolina Reaper (over 2,200,000) and pepper spray reference at top. Each bar shows the SHU value in bold data labels, with a small flame icon whose size grows with heat level. A safety scale on the right side marks mild, hot, extreme and hazard zones with gradient bands. Color system: gradient from fresh green (#4CAF50) through yellow (#FFC107) and orange (#FF7043) to deep red (#D32F2F), on a light gray background (#FAFAFA) with dark charcoal text. Typography: bold sans-serif numbers, playful rounded labels. Background: subtle diagonal heat-wave texture. Data feel: scientific measurement chart with log-spaced scale markers. Lighting: bright even studio light, glossy highlights on peppers, crisp shadows. 4k