黑色塑料垃圾袋静物

纯白背景下的静物摄影，一只黑色高光塑料垃圾袋，袋口在顶部收拢扎紧，袋身呈上窄下宽的丘状，表面布满密集不规则褶皱与强烈高光反射，局部可见细微彩色反光，底部宽大堆叠，正面略偏侧视角，居中构图，平视机位，完整呈现整体轮廓，黑色与深灰色调，干净冷白背景，高光清晰，真实塑料质感，4:5竖幅。

Photorealistic still-life product photograph of a single black glossy plastic trash bag on a plain white background. The bag is tied closed at the top, forming a tapered mound with a broad crumpled base; dense irregular wrinkles and strong specular highlights, with subtle iridescent reflections in small areas. Centered composition, eye-level frontal three-quarter view, full object visible, black and dark gray tones, clean cold white background, crisp highlights, realistic plastic texture, 4:5 vertical aspect ratio.