完整指南：用一张产品照片制作多场景AI视频广告

{
  "product": "unscented facial moisturizer",
  "audience": "people with dry skin who dislike heavy creams",
  "single_message": "light texture, comfortable daily use",
  "proof_to_show": "thin texture spreads quickly and leaves no visible residue",
  "format": "9:16 social video",
  "length": "18 seconds",
  "tone": "clean, calm, practical",
  "cta_added_in_post": "See ingredients",
  "claims_to_avoid": [
    "medical treatment",
    "guaranteed results",
    "unverified before-and-after claims"
  ]
}

{
  "must_keep": [
    "one white cylindrical bottle",
    "short matte-white pump",
    "label remains centered and rectangular",
    "thin cobalt band near the base",
    "bottle height-to-width ratio",
    "no additional words, logos, badges, or products"
  ],
  "may_change": [
    "background",
    "camera angle within visible reference evidence",
    "lighting softness",
    "supporting props"
  ],
  "never_generate": [
    "exact marketing copy",
    "price",
    "rating",
    "medical claim",
    "disclaimer text"
  ]
}

{
  "shot_id": "03-texture",
  "purpose": "show lightweight texture",
  "duration": 3,
  "start_state": "bottle upper third visible, pump untouched",
  "action": "one slow pump dispenses a small translucent drop onto clear glass",
  "camera": "locked macro side view",
  "light": "large soft source from upper left",
  "end_state": "drop fully separated, bottle shape unchanged",
  "must_keep": [
    "one bottle only",
    "same pump and cobalt band",
    "no added text"
  ],
  "reject_if": [
    "pump changes shape",
    "two drops appear",
    "liquid originates outside nozzle",
    "label becomes invented text"
  ]
}

Image 1 is the product identity anchor. Preserve one white cylindrical bottle,
the short matte-white pump, the centered rectangular label layout, the thin
cobalt band near the base, and the bottle's height-to-width ratio.

Do not add words, logos, badges, ratings, prices, extra bottles, or packaging.
Do not redesign the pump or label. Keep the product fully opaque and physically
grounded.

SHOT 03 — TEXTURE
Locked macro side view. One slow pump dispenses a small translucent drop onto
clear glass. The liquid must originate at the nozzle and separate into exactly
one drop. Large soft light from upper left. End with the drop fully separated
and the bottle unchanged. No camera movement, hands, captions, or music.

curl https://reapi.ai/api/v1/videos/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao-seedance-2.5-face",
    "prompt": "Image 1 is the product identity anchor. Preserve one white cylindrical bottle, short matte-white pump, centered label layout, cobalt band, and proportions. Do not add text, logos, badges, prices, or extra products. Locked macro side view. One slow pump dispenses exactly one small translucent drop onto clear glass. End with the drop fully separated and bottle unchanged.",
    "image_urls": ["https://example.com/product-packshot.png"],
    "resolution": "720p",
    "size": "9:16",
    "duration": 4,
    "generate_audio": false
  }'

/campaign
  /source
  /shot-cards
  /prompts
  /generated
  /approved
  /edit
  production-notes.md