悬浮失重虚空中的产品，无支架极简构图

{
"image_generation_request": {
"subject": {
"placeholder": "[在此处插入产品]",
"position": "正中央，视线高度，完全居中构图",
"presentation": "悬浮，漂浮在失重虚空中，无支架、无平台、无底座、无可见支撑"
},
"environment": {
"background": "绝对纯黑，十六进制颜色 #000000，无限虚空",
"lighting": "边缘光照，电影级明暗对比（明暗法），金属边缘高对比高光，来自内部凹槽的柔和橙色光晕"
},
"aesthetic_style": {
"textures": [
"喷砂哑光钛合金",
"拉丝航天级铝材",
"阳极氧化深灰金属",
"有肋的工业垂直散热鳍片"
],
"optical_effects": "通过垂直沟槽状（reeded）玻璃观察，微妙色差扭曲，折射玻璃变形，外缘径向运动模糊",
"color_palette": {
"primary_background": "#000000",
"secondary_metal": "#8E8E8E",
"accent_glow": "#FF8C00",
"highlights": "#FFFFFF"
}
},
"composition_constraints": {
"framing": "确保产品完整可见，不裁切边缘，主体周围留出宽裕安全边距",
"elements_to_exclude": [
"文字",
"标识/商标",
"水印",
"柔光箱",
"灯架",
"地面",
"地平线",
"道具",
"人手",
"投影在表面上的阴影"
]
},
"technical_specs": {
"focal_length": "85mm 微距镜头",
"depth_of_field": "产品深度对焦，折射前景玻璃模糊",
"render_engine": "写实的 Octane 渲染，8k 分辨率，光线追踪反射"
}
}
}