Poster khuyến mãi hiện đại

Prompt tạo ảnh

Ultra-premium promotional poster background for a [CHỦ ĐỀ] campaign, designed as a layered graphic composition. A smooth diagonal gradient runs from deep emerald green at the top left to warm amber at the bottom right. Over it float three large soft-edged geometric shapes — one circle, one rounded rectangle, one thin arc — at different opacities, with a subtle grain texture across the whole surface and a faint concentric ring pattern in the lower right corner. A soft radial glow sits in the centre where the product will later be placed. The top third is kept visually calm and almost empty, reserved for a bold headline, and a clean horizontal band at the very bottom is reserved for terms and a call to action. Depth comes from gentle drop shadows under each shape and a slight blur on the rearmost one. No product, no people, no lettering of any kind. Print-ready quality with rich saturated colour and smooth banding-free gradients, vertical 4:5, no text, no watermark.