冬雪中的写实街头浪漫抓拍

```json { "generation_request": { "meta_data": { "tool": "NanoBanana Pro", "task_type": "photoreal_candid_street_romance", "version": "v2.0_BESIKTAS_WINTER_SCARF_SNOW_FLURRIES_EN", "priority": "highest" }, "output_settings": { "aspect_ratio": "9:16", "orientation": "portrait", "resolution_target": "ultra_high_res", "render_style": "ultra_photoreal_candid_street_film_still", "sharpness": "crisp_but_natural", "film_grain": "subtle_35mm", "color_grade": "true_to-life_winter_realism", "dynamic_range": "natural_not_hdr", "skin_rendering": "real_texture_no_retouch" }, "global_rules": { "camera_language": "35mm 镜头，平视视角，纪实抓拍构图，聚焦眼神", "lighting_language": "仅限阴天冬季日光，无闪光灯", "authenticity_markers": "真实雪花纹理，雪中高光处有细微光晕，无 AI 光泽" }, "creative_prompt": { "scene_summary": "寒冷的冬日，贝西克塔斯（Beşiktaş）飘着小雪。一对情侣共用一条围巾漫步。安静、浪漫，非摆拍。", "subjects": { "count": 2, "description": "同一对情侣（20 岁出头），系列中面部特征保持一致，普通真实", "expression": "略带微笑，脸颊因寒冷微红，仅有微表情" }, "wardrobe": { "female": "深色长款羊毛大衣，米色围巾，皮手套，深色牛仔裤，简约靴子", "male": "炭灰色羊毛大衣，针织毛衣，可选简约毛线帽，深色牛仔裤", "rules": "适合冬季的分层穿搭，优雅日常风格，中性色调，无品牌标志，真实面料质感" }, "micro_action": "他为她调整脖子上的围巾；她抬头温柔一笑；雪落在肩膀和头发上", "environment_details": { "location": "贝西克塔斯（Beşiktaş）海滨附近街道氛围", "background": "积雪的路面，停放的汽车上覆盖着薄雪，远处渡轮灯光柔和，无清晰可读的标志" }, "composition": "平视中景，不完美的抓拍构图，面部清晰，前景雪花轻微模糊", "mood": "寒冷中的温暖，温柔的亲密感" }, "negative_prompt": [ "假雪", "影棚灯光", "美颜修饰", "塑料皮肤", "HDR", "AI 光泽", "摆拍海报感", "可读文字", "品牌标志", "水印" ] } } ```