E-commerce Main Image - Premium Grain Powder Ad Board

{"type":"Chinese e-commerce product marketing board","product":{"category":"instant grain powder drink","brand":"五谷磨房","name":"核桃芝麻黑豆粉","packaging":"matte black retail box with gold Chinese typography and a large swirling bowl graphic on the front, plus individual black sachets inside","net weight":"320g (32g×10袋)"},"style":{"overall":"premium dark food advertising layout","color palette":["black","deep brown","warm gold","beige","walnut brown"],"lighting":"dramatic studio lighting with glossy highlights and warm rim light","mood":"luxurious, nourishing, healthy, appetizing"},"layout":{"format