科幻长枪道具侧面特写

纯黑背景，超宽横向构图，中央水平放置一件科幻长枪/能量步枪道具的侧视图；左侧是深棕色长条外壳，外壳内部露出浅米色、带细密横向纹理的矩形内芯，右端连接银色圆形接头；中段为一个巨大的深棕色粗糙皮革质感握把，表面有不规则褶皱和磨损；右侧有一根黑色长杆，串联银灰色金属圆柱、半透明玻璃质感套筒和一段深棕色包裹，末端为银灰圆柱状枪口结构；硬表面建模与PBR材质渲染，写实科幻道具概念设计，产品展示光，侧向柔光，金属高光与皮革粗糙质感对比明显，无人物，无环境，无文字，超宽横画幅。

Pure black background, ultra-wide horizontal composition, centered side view of a sci-fi long rifle/energy weapon prop; on the left a dark brown elongated housing with a pale beige ribbed rectangular core exposed inside, ending in a silver circular connector; in the middle a large dark brown rough leather-textured grip with irregular folds and wear; on the right a black rod connecting silver-gray metal cylinders, a translucent glass-like sleeve, a dark brown wrapped band, and a silver-gray cylindrical muzzle at the end; hard-surface modeling with PBR material rendering, realistic sci-fi prop concept design, product display lighting, soft side light, strong contrast between metallic highlights and rough leather texture, no people, no environment, no text, ultra-wide horizontal aspect ratio.