电商首页 大促活动

Generate a high-fidelity mobile e-commerce app homepage screenshot. Extremely realistic interface with complete mobile app UI logic and commercial design sense. Top: status bar with time 9:41, 5G signal, battery icon. Search box area below. Main banner for a big sale promotion. 10-grid function area with icons. Below: flash sale module with countdown timer and product cards. Bottom: double-column product waterfall with at least 6 product cards, each with product image, title, price, monthly sales, shop name, rating. Bottom fixed Tab Bar. All text clear and readable, unified icons, realistic white space, card shadows, rounded corners. Must look like an authentic e-commerce app screenshot, not concept art.