"image generation request": {

{
  "image_generation_request": {
    "subject": {
      "placeholder": "[在此插入您的产品]",
      "positioning": "居中对齐，完全置中，悬浮于空中",
      "framing": "物体完全可见，无裁剪，无边缘截断，产品周围留有充足的留白"
    },
    "visual_style": {
      "aesthetic": "超现代工业设计，超写实产品摄影，电影感科技极简主义",
      "background": {
        "color": "#000000",
        "finish": "纯空白，哑光黑，无反光"
      },
      "lighting": {
        "type": "自上

...