2x2 网格电影夜间情侣肖像，带身份锁

{
  "generation_request": {
    "meta_data": {
      "task_type": "cinematic_night_couple_2x2_grid_identity_lock",
      "language": "en",
      "priority": "highest",
      "version": "v1.0_DUSK_COUPLE_LIFT_ROMANCE_2X2_IDLOCK"
    },
    "input": {
      "mode": "image_to_image",
      "reference_image_usage": "very_high",
      "preserve_identity": true,
      "preserve_facial_features": true,
      "preserve_skin_tone": true,
      "preserve_pose": false,
      "preserve_hand_structure": true,
      "notes": "IMPORTANT: There are TWO people. Use TWO separate reference images: one for the woman and one for the man. The output MUST preserve both identities and facial proportions as close as possible to the references. Create a single 2x2 grid collage (four different shots) with the same couple, same wardrobe styling, same nighttime mood. No text, no logos, no watermark."
    },
    "output": {
      "aspect_ratio": "4:5",
      "resolution": "ultra_high",
      "num_images": 1,
      "layout": {
        "type": "grid",
        "rows": 2,
        "cols": 2,
        "gutter": "thin"
      },
      "sharpness": "filmic_crisp",
      "grain": "subtle_analog"
    },
    "scene": {
      "environment": "outdoor night / dusk setting with deep blue sky and a faint warm horizon line, minimal city lights far away",
      "mood": "romantic cinematic night portrait, intimate but natural, film still feel"
    },
    "wardrobe": {
      "man": "white sleeveless tank top, athletic casual",
      "woman": "white fitted short-sleeve top, large hoop earrings, long dark hair flowing"
    },
    "lighting": {
      "style": "cinematic low-light with flash + warm rim",
      "key_light": "soft warm key on faces (like phone flash or small LED), not overexposed",
      "rim_light": "warm rim on hair and shoulders",
      "background": "dark blue night tones, clean and uncluttered"
    },
    "camera": {
      "look": "35mm film still vibe",
      "lens": "50mm and 85mm feel",
      "depth_of_field": "shallow to moderate, faces sharp, background softly blurred",
      "color_grade": "cool blue shadows + warm skin highlights, subtle halation"
    },
    "panels": {
      "panel_1": "wide romantic lift: man holds woman at waist/hips; woman reaches both arms up toward the sky, head tilted back, hair flowing; deep blue dusk background",
      "panel_2": "intimate close-up profile: couple facing each other very close, woman looking up at man with a soft smile; man looking down; faces and eyes tack sharp",
      "panel_3": "red light selfie close-up: strong red gel light washing over both faces; man in foreground looking at camera, woman behind him smiling; keep identities perfect; no captions or watermarks",
      "panel_4": "wide lift embrace: man holding woman again; woman’s arms around his neck, her head tilted back laughing; same dusk background and lighting continuity"
    },
    "identity_rules": {
      "two_people_only": true