Create an original square three-panel coupon sheet with connected pale-lilac ticket panels and circular marks. Keep lavender, white, black, and pale-yellow colors, with richer purple accents. Text: “新人券 80 满300元可用”, “省钱优惠券 25 满150元可用”, “好友分享券 40 满300元可用”. Add thin rays, stars, and dotted confetti. No logo, watermark, QR code, website, or note text.