灰色格纹软包长方体静物

写实商业产品摄影，灰色长方体软包物件置于纯白无缝背景，表面覆盖深灰色细方格纹，边缘和转角有压褶、缝线与轻微起伏，材质呈柔软织物或包装膜包裹感，整体厚实呈竖向块状，略微侧向展示厚度，正面受光，柔和均匀的棚拍光，右下方有淡淡投影，机位与物件中部平视，全景，竖幅3:4，高清质感，无人物无文字。

Realistic commercial product photography, a gray rectangular soft padded block placed on a seamless pure white background, covered with a fine dark gray grid pattern, pressed creases, seams and slight undulations at the edges and corners, a soft fabric or packaging-film wrapped texture, thick vertical block form, slightly angled to show depth, front lit, soft even studio lighting, faint shadow at the lower right, eye-level camera at the middle of the object, full view, vertical 3:4 aspect ratio, high-definition texture, no people, no text.