柔和日光下的都市青年街拍肖像

创作一张自然写实的都市生活方式街拍肖像：一位明确成年的年轻男子，面部比例自然，短款现代发型，神情平静、自信而不刻意摆拍；保留真实皮肤纹理、可见毛孔和轻微自然瑕疵。让他以放松可信的姿态站在真实的户外城市空间，背景带有柔和虚化但仍能辨认的街道与建筑细节。服装为中性色连帽衫，外搭轻薄简洁的夹克，下穿合身牛仔裤，造型现代、克制、日常。采用柔和自然日光与电影感浅景深，人物面部和衣料清晰，背景自然散焦；以全画幅相机、50mm定焦、f/1.8与ISO 100作为摄影观感参考，保持高光阴影平衡、真实色彩和细微胶片颗粒。构图干净、取景专业，气质像真实摄影师捕捉的随性生活瞬间，同时保留时尚编辑摄影的精致度。不要过度锐化、塑料皮肤、夸张修容、畸变比例、可读文字、标志或水印；避免把技术规格渲染成画面文字。人物是非特定身份的成年男子，参考仅用于通用外观一致性。

【English Prompt】
Create a natural, photorealistic urban lifestyle street portrait of a clearly adult young man. Give him natural facial proportions, a short modern haircut, and a calm, quietly confident expression that does not feel posed; retain authentic skin texture, visible pores, and slight natural imperfections. Have him stand with relaxed, believable posture in a real outdoor city setting. Keep street and architectural details recognizable but softly defocused behind him. Dress him in a neutral hoodie under a light, simple jacket with well-fitting denim jeans for restrained modern everyday style. Use soft natural daylight and cinematic shallow depth of field, with the face and clothing crisp against a naturally blurred background. Treat a full-frame 50mm prime, f/1.8, and ISO 100 as photographic-look cues; balance highlights and shadows, keep realistic color, and add only subtle film grain. Use clean professional framing and the candid feel of a real photographer's lifestyle capture, polished with a light editorial-fashion sensibility. Avoid oversharpening, plastic-looking skin, heavy retouching, distorted proportions, readable text, logos, and watermarks; do not render camera settings as visible text. The subject is a non-specific adult man; use the reference only for generic appearance consistency.

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