Based on the provided white-background product images, a kitchen usage poster for stainless steel fresh-keeping lunch boxes is generated. Maintains the combined appearance of a square stainless steel box, rounded edges, and warm beige sealing cover, without branding or readable markings. The top is light beige with blank space, aligned to the left, with two large black headings and two lines of description; The center features a bright refrigerator storage scene, with both hands holding lunch boxes filled with dumplings, with stacked containers from the same series and open lids beside them; A small rounded material card is added at the bottom to enlarge the stainless steel surface and water droplets for a close-up of easy cleaning. Copywriting Usage: Made of stainless steel Everyday storage is more reassuring It handles refrigeration, heating, and baking with ease Stack neatly for cleaner kitchen storage Durable and easy to clean One box holds delicious everyday flavors The title uses HollyGreen HeiTi Chinese Simplified with heavy fonts, and the main text is in dark gray; Text should be left blank at the top and cards at the bottom, not covering the edges of the food or lunch box. The bottom card uses a semi-transparent light gray background, without obvious text shadowing. Icons/Labels: Use simple line art for refrigerators, ovens, and dishwashers to indicate usage scenarios, with smooth lines. Output size: '750 x 1590px' Avoid: Authentic brands, exaggerated material detection, hand deformities, watermarks, food deformation, readable packaging text, information overcrowding.