超写实街头浪漫抓拍场景

{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "photoreal_candid_street_romance",
      "version": "v1.0_ISTANBUL_UNIVERSITY_FIRST_MEET_LOVE_EN",
      "priority": "highest"
    },

    "output_settings": {
      "aspect_ratio": "4:5",
      "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_natural",
      "dynamic_range": "natural_not_hdr",
      "skin_rendering": "real_texture_no_retouch"
    },

    "global_rules": {
      "camera_language": "35mm lens equivalent, eye-level, imperfect framing, candid documentary feel, focus on eyes when people are present",
      "lighting_language": "motivated natural light only (overcast daylight or soft morning sun), deep but detailed shadows",
      "authenticity_markers": "no studio look, no HDR, no AI glow, natural colors, real street atmosphere"
    },

    "creative_prompt": {
      "scene_summary": "A quiet love story begins in {argument name="city" default="Istanbul"}. Two university students meet for the first time at the main gate of {argument name="university name" default="Istanbul University"}. A candid, unposed moment — as if caught accidentally by a street photographer.",

      "subjects": {
        "count": 2,
        "description": "a young man and woman in their early 20s, university students, ordinary and real, not model-like",
        "expression": "subtle curiosity, shy eye contact, a small uncertain smile — restrained, natural",
        "skin_and_face": "natural skin texture, no beauty retouch, slight under-eye shadows, real imperfections"
      },

      "wardrobe_and_style": {
        "makeup": "very minimal, natural makeup only",
        "clothing": "simple everyday student clothing in neutral tones (beige, grey, navy, soft brown), slightly wrinkled fabric",
        "accessories": "backpacks or tote bags, books held naturally in arms — no logos"
      },

      "micro_action": "they pause briefly while passing each other; their eyes meet; one adjusts the books in their arms; a half-smile forms before words",

      "environment_details": {
        "location": "Istanbul University main entrance gate",
        "background": "historic stone gate, worn pavement, passing students softly out of focus, trees and campus walls",
        "street_elements": "subtle movement of people in the background, light breeze, everyday campus life"
      },

      "lighting": "soft natural daylight, slightly diffused, no dramatic contrast, realistic skin tones",

      "composition": "eye-level medium shot, slightly off-center framing, faces clearly visible and sharp, background gently receding, no symmetry",

      "mood": "quiet, human, intimate, observational — love as a small moment, not a performance"
    },

    "negative_prompt": [
      "studio lighting",
      "beauty retouch",
      "