Create a brand-new vertical summer promotion poster in Korean, intended for advertising and marketing.
Accurately present the text “썸머 혜택전”“최대 25%”“2026.08.01-08.07”.
Employ a color palette of coral orange, mint green, creamy white, and deep navy blue.
Use soft, curved color blocks, three-dimensional discount tags, and fluttering ribbons as visual focal points.
Make “25%” the largest element, while keeping the Korean title bold and easy to read.
The overall style should be light, modern, with gentle shadows and layered paper textures.
Do not feature any brand logos, trademarks, website URLs, QR codes, watermarks, or fine print.
Output a high-quality static PNG image.