5G Smartphone E-Commerce Product Main Image

[Format] Professional e-commerce product main image, square 1:1, sharp tech-spec style with a dark tech-frame border and a white spec card. [Colors] Black outer ground with thin white tech strips and corner brackets; a large white rounded card inset with cyan #35e0e0 corner accents; black phone body; cyan pill and cyan check marks. [Layout] The white card fills most of the frame inside the dark tech border. Front and back views of a black smartphone overlap at the left of the card. The right side stacks the headline, a cyan pill and three check rows. Branded strips run along the top and bottom edges. [Subject] A black glass smartphone shown from the back with a single camera and from the front with a notch screen displaying a soft pastel gradient wallpaper, slightly overlapping poses. [Headline] Right side: huge black caps "5G Smartphone"; beneath, a cyan rounded pill with dark text "Free Smartwatch With Purchase"; then three check rows "Ultra-Long Standby", "Huge Storage" and "Dual SIM, Dual Standby". Top and bottom white strips read "GAODINGSHOUJI" flanked by angular brackets. [Badges] The cyan gift pill; the top/bottom brand strips with small logo seals. [Mood] Crisp, techy and spec-forward; black-cyan contrast with clean white card clarity.