真实感照片：随手拍风格

示例场景

Create a realistic candid smartphone photo of a young person reading a book in a quiet coffee shop on a rainy afternoon. The photo should feel natural and unposed, like a real moment captured casually. Use imperfect framing, realistic lighting from the window, ordinary background details, and mild grain. Avoid overly polished commercial photography. Avoid plastic skin, perfect symmetry, excessive beauty retouching, cinematic overlighting, or fantasy colors. Shot on a modern smartphone camera, natural colors, realistic depth, believable environment, everyday documentary feeling.