Neon Whitening Sheet Masks Flash Sale

[Format] Professional e-commerce product main image, square 1:1, neon-lit nightlife beauty style with glowing signage and a dark stage floor. [Colors] Background is a deep violet-purple gradient in the #3a1560 range, washed with a magenta-pink neon bloom at the top and fading to near-black at the base. Accents are pink-white neon tubing, electric blue on the mask packs, and a hot-pink price band. Small glowing star and heart doodles float at the edges. No frame border. [Layout] A large rounded-rectangle neon sign spans the top carrying the product name, flanked by star and heart doodles. A circular dotted offer badge sits on the right below the sign. Four sheet-mask packets stand in a row across the centre on a faint circular platform. The bottom holds a price line on the left and two promotional strips on the right. [Subject] Four sheet-mask packets in white and electric blue standing upright in an overlapping row, one slightly forward, each showing a plain white upper panel and a vivid blue lower panel suggesting the folded mask inside; a soft blue glow rims their edges against the purple dark. No people. [Headline] Top neon sign: "Whitening & Hydrating Spot-Fade Sheet Masks" in glowing pink-white tube lettering inside a double neon outline. Right badge: "Order Now, Get 2 Free Trial Pieces" in white on a dotted ring. Bottom left: "Event price" small over a hot-pink "$199". Bottom strips: "Order in the first hour for $50 off, more prizes waiting" in white, and below it "Buy 1 Get 1 Free for the first 200 buyers" in huge glowing white caps on magenta. [Mood] Electric, trendy and deal-charged; purple nightclub glow with neon-sign typography and flash-sale urgency made for small thumbnails.