季节促销 Banner：大色块版式

负面提示词

cluttered layout, unreadable text, misspelled words, low contrast, muddy colours, stock-photo look, watermark, more than two lines of text, tiny type, low contrast text, products overlapping the headline

也适用于

需要准备

• 必需
  图上文案

  Keep on-image copy under six words. Long text is where image models still fail.

• 可选
  产品照片

  Attach a product photo to keep the exact shape, label and colour; without one the model invents a plausible product.

替换这些变量

推荐尺寸

• Website hero banner1920 × 720 · 21:9Generate at 21:9 and trim to 1920×720; keep the product in the safe zone.
• Facebook / Meta ad1200 × 628 · 16:9Generate at 16:9 and crop 47px from the height for 1.91:1.
• Web hero (tall)1920 × 1080 · 16:9