Create an original square e-commerce presale coupon poster. Use a coral-red and peach gradient background, large headline “618超前礼包” and “真的降!!!”, a white coupon card with side notches and barcode, and a bottom urgency strip. Text: “立即预定 抢到赚到”, “0.02元抵”, “8800元”, “今日限量3000份 抢完即止!”. No logo, watermark, QR code, website, or note text.
