Grand Opening Special Gift Box Promotion

[Format] Professional e-commerce main image, square 1:1, fresh flat-illustration grand-opening announcement in spring green. [Colors] Background white with a light sage-green outer border, primary accent lively green (#4caf6d), secondary soft mint, black headline with green accent strokes, tiny green sparkles and diamond icons, No frame border beyond the pale green margin. [Layout] Top carries a bracketed black headline with a green pinyin caption on the right; center features a large flat green gift box with ribbon bow; left-bottom a green corner burst tag; bottom band holds two white outline capsules with green borders; right edge has small diamond ornaments. [Subject] A flat-design green gift box with a lighter green ribbon bow and a two-tone wrap, centered as a cheerful opening symbol. [Headline] Black bold headline with green brackets: "Grand Opening Special Arrives". Green corner burst: "Specials Here". Bottom capsules: "$30 off every $299 sitewide" and "Coupon for Instant $10 Off" in black on white. [Badges] Corner burst tag, two capsule coupon bars, sparkle accents. [Mood] Light, welcoming and friendly, a fresh shop opening its doors with gifts.