Create an original portrait 5:6 Korean pre-order poster in cobalt blue and lavender, with a 3D shopping cart, one product box, and a dark call-to-action badge. Text: “와디즈 예약판매”, “PRE-ORDER OPEN”, “한정 혜택”. Keep the composition clean with two tiny stars only. No brand, watermark, QR code, website, Chinese text, or random tiny text.