Black Friday Milk Powder Mega Sale

[Format] Professional e-commerce product main image, square 1:1, Black Friday sale style with deep purple festive ground. No watermark, no personal names. [Colors] Dark aubergine-purple background (#3a2450 to #2a1838 range) with a lighter lilac gradient stage behind the cans (#cfc3e6); primary accents bright purple (#7a4fd0) and warm gold; soft white floating bubbles. No frame border. [Layout] A thin top band across the full width contains two tabs: a black tab on the left and a purple tab on the right, both in white text. The middle two-thirds shows three milk-powder cans arranged in a row on a lilac round stage, the tall center can facing front and two shorter cans flanking it in partial profile. A dark purple angled footer occupies the bottom fifth, holding a large circular seal on the left and benefit claims on the right above one bold white headline line. [Subject] No people. Three matte metal formula-milk cans: the front one tall with a lilac body and deep purple lid, labelled "GAODING MILK" in purple-and-white caps with a white milk-drop dot below; the left can cream-white with gold lid, the right can white with purple lid, both showing the same brand partial. Glossy highlights on the rims. [Headline] Top band reads "BLACK FRIDAY MEGA SALE" on the black tab and "GAODING Overseas Flagship Store" on the purple tab. Footer left: a purple circle seal with "BF Price" in gold script and "From $199" stacked in huge white numerals. Right: a gold airplane icon beside "Overseas Direct Mail" and "Authenticity Guaranteed", then the bold white line "Global Milk Powder, Lowest Price Here". [Badges] Three small white dots centered above the footer as carousel markers. [Mood] Festive, trustworthy and premium; deep purple night ground with gold and lilac highlights.