Professional ID Photo Generation Prompt for Nano Banana 2

A polished professional ID-style portrait with a centered subject, medium framing, and a soft gray-to-white gradient background. The image looks natural and refined, with gentle lighting, realistic skin tones, clear facial focus, and a calm confident expression.

智感职业证件照，整体风格参考美式证件照，人物大小适中。使用淡淡的灰色到白色的渐变摄影背景，灯光柔和自然，突出真实肤色与层次感。画面清晰高质，面部保持对焦，皮肤质感通透气色好，头肩比要正常舒适。整体气质现代且优雅，神情放松，自然自信，眼神明亮有神。中景人像，人物大小适中，人物居中，低对比度，呈现出专业肖像摄影的精致感。适合作为商务与职业形象照。比例3:4