三代同堂棚拍全家福

生成一张 4:5 竖版三代同堂棚拍全家福。中国家庭三代六人站在浅灰影棚背景前：银发祖父母坐在中间两把木椅上，成年子女站在两侧，两个孩子站在前方，所有人穿低饱和米色、深蓝和暖灰色系服装。构图正式但温暖，所有人完整可见，脸部清晰，站位有层次，不拥挤。灯光为大面积柔光箱加轻微背光，背景干净无文字。色调温暖中性，正式家庭影楼但不僵硬。50mm 镜头，人物比例真实，手部自然，不要压扁。画面内不要出现任何可读文字、logo、水印、品牌、相框文字或影棚标识。

Create a 4:5 vertical three-generation studio family portrait. A Chinese family of six stands against a light gray studio background: silver-haired grandparents sit in the center on two wooden chairs, adult children stand on both sides, and two children stand in front. Everyone wears low-saturation beige, navy, and warm gray clothing. Formal but warm composition, all people fully visible, faces clear, layered placement without crowding. Lighting: large softbox plus slight backlight, clean text-free background. Warm neutral tones, formal family studio look without stiffness. 50mm lens, realistic proportions, natural hands, no compression. No readable text, logo, watermark, brand, frame text, or studio mark anywhere.