超高端行政肖像

创作一张超高端行政摄影棚肖像，主体为 {argument name="subject" default="一位年轻的黑人男性"}，他坐在黑色皮质扶手椅上，居中面向镜头，表情冷静、自信且严肃。他身着剪裁完美的纯黑色双排扣西装、黑色衬衫、质感黑色领带、黑色袜子、抛光黑色牛津鞋，佩戴白色窄边口袋巾，左手腕戴着奢华深色腕表。姿势要求双腿交叉，双臂自然放在扶手上，坐姿挺拔，双肩平直，直视镜头。采用 2:3 纵向构图，全身坐姿可见（从头部到鞋子），对称式取景，视角略低于视平线。背景为无缝深炭灰色摄影棚背景，带有微妙的暗角效果，除椅子外无其他道具。灯光采用戏剧性的高端杂志肖像布光：左前方大面积柔光主光，右前方柔和补光，肩部有微妙的轮廓光，皮椅和鞋子上有受控的高光，深邃的黑色中保留可见的织物纹理。照片级真实感，面部对焦清晰，自然的皮肤纹理，杂志封面级品质，精致的对比度，电影级调色，无文字，无水印，无扭曲的手部，无多余手指，无面部风格化处理。

Create an ultra-premium executive studio portrait of {argument name="subject" default="a young Black man"} seated in a black leather armchair, centered and facing the camera with a calm, confident, serious expression. He wears a perfectly tailored all-black double-breasted suit, black dress shirt, textured black tie, black socks, polished black Oxford shoes, a slim white pocket square, and a luxury dark wristwatch on his left wrist. Pose him with legs crossed, both arms relaxed on the chair arms, upright posture, shoulders squared, direct eye contact. Use a vertical 2:3 composition, full seated body visible from head to shoes, symmetrical framing, slight low-to-eye-level perspective. Background is a seamless dark charcoal studio backdrop with subtle vignette and no props besides the chair. Lighting should be dramatic high-end editorial portrait lighting: large soft key light from front-left, gentle fill from front-right, subtle rim separation on shoulders, controlled highlights on the leather chair and shoes, deep rich blacks with visible fabric texture. Photorealistic, sharp focus on face, natural skin texture, premium magazine cover quality, refined contrast, cinematic grading, no text, no watermark, no distorted hands, no extra fingers, no facial stylization.