Amazon 白底主图（合规）

Prompt 模板

A single {product_name} centered on a pure white background (RGB 255/255/255, mandatory for Amazon main image), product filling 85% of the frame, no text no logos no watermarks no insets no props (Amazon compliance), sharp focus on product details, soft even studio lighting from top-front, subtle contact shadow beneath the product for realism, color-accurate product photography, professional e-commerce main image, 1024x1024.