石阶上的电影感奢华大片

{   "render_goal": "Cinematic luxury editorial portrait",   "subject": {     "pose": "female standing mid-staircase, relaxed elegant posture",     "expression": "composed confidence with a soft smile"   },   "wardrobe": "structured silk satin gown in {argument name="gown color" default="warm ivory"}, clean neckline, subtle drape",   "environment": {     "location": "historic interior with a wide stone staircase",     "props": "natural light from tall windows, soft shadow fall"   } }