无品牌奢华产品摄影大片

为紧凑型陶瓷桌面扬声器拍摄一张高端、无品牌标识的编辑级产品照片。产品采用深中性哑光材质：深石墨、暖炭色或哑光黑，并在侧光下显现细颗粒纹理。让基础色在物体下部向钴蓝色渐变成来自材质内部的柔和光晕，而非印刷图形。在产品最自然的接缝、边缘、饰带、绑带或包裹点加入一条狭窄的钴蓝色点缀元素，使其适度延伸或包裹出边界，形成精确克制的三维张力；不要添加 logo、商标或可识别品牌字体。使用摄影棚无缝背景幕，表面为米白至暖浅灰，背景上部为较暗的冷中性灰。产品以 3/4 角度放置，占据画面右侧约 60%，左侧保留充足而有意的负空间。相机左上方一盏大型柔光箱作为主光源，产品左上边缘有清晰高光，阴影侧不补光，只保留少量地面反光；向右下方投射单一硬边缘阴影。采用 85mm 等效焦距、f/4.5、主体全清晰、背景柔和，物理准确的光线衰减与适度胶片颗粒，画面高级、安静、无镜头光晕和无烟雾效果。

【English Prompt】
Photograph a compact ceramic desk speaker as a high-end, unbranded editorial product image. Give it a deep neutral matte material—dark graphite, warm charcoal, or matte black—with fine-grain texture revealed by raking light. Let the base tone dissolve near the lower surface into a soft internal glow of cobalt blue, never a printed graphic. At the most natural seam, edge, band, strap, rim, or wrap point, add one narrow cobalt blue accent element that subtly extends or wraps beyond the object boundary, creating precise restrained 3D tension. Do not add logos, trademarks, or recognizable brand typography. Use a studio cyclorama with an off-white to warm-light-gray surface and a darker cool-neutral upper background. Place the product at a three-quarter angle, occupying about 60% of the right side while leaving generous intentional negative space on the left. Use one large softbox high camera-left; trace a clean highlight along the upper-left edge, give the shadow side no fill, retain only slight floor bounce, and cast one crisp shadow to the right and slightly downward. Use an 85mm-equivalent lens at f/4.5, keep the object fully sharp with a softened background, physically accurate falloff, and restrained film grain. Quiet luxury editorial mood, no lens flare and no atmospheric effects.

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