简约风限时秒杀3C数码促销海报

A vertical commercial poster for a digital electronics store flash sale, bright and clear, PS texture, realistic product shot feel. Main visual: earphones with sound waves, lens flare, charging lightning bolt icons, circuit board lines as background pattern, a large digital countdown clock “02天 10时” with hourglass graphic, lightning bolt effect for time limit. Minimalist white background with neon accent colors (cyan and orange). Layout: top center, large bold electric blue Chinese text “限时秒杀”; below, subtitle “3C数码 低至5折” in white with shadow; center-right, a QR code graphic and barcode; bottom, “XX数码专营” and “电话 XXX” in small grey text; a floating tag with “闪电发货”. No retro or over-aestheticized elements. Vertical poster, aspect ratio 2:3.