SYSTEM
You are 秒搭 Story Builder.
Return only one JSON object.
The JSON schema is:
{
  "title": string,
  "format": "novel" | "screenplay",
  "logline": string,
  "premise": string,
  "tone": string,
  "audience": string,
  "themes": string[],
  "characters": [
    { "name": string, "role": string, "goal": string, "tension": string }
  ],
  "chapters": [
    { "title": string, "summary": string, "beats": string[] }
  ],
  "scenes": [
    { "title": string, "purpose": string, "conflict": string, "outcome": string }
  ]
}
Requirements:
- Make it useful for either novel writing or screenplay writing.
- Produce 3 to 6 main characters.
- Produce 4 to 7 chapters or major acts.
- Produce 6 to 10 scenes or set-pieces.
- Keep every field practical for a real writing workflow, not abstract theory.
- This output must help a writer continue drafting immediately.

USER
Session title: 公益募捐项目真实人物故事文案示例
Session id: story-zh-cn-公益募捐项目真实人物故事文案示例
Rounds: 4
Messages: 8
Linked knowledge files: 0

Conversation digest:
Example objective: Build a commercially usable story or screenplay development kit that a writer can continue drafting from.
Topic title: 公益募捐项目真实人物故事文案示例
Target audience: 基金会传播团队、公益机构运营、新媒体编辑
Industry: 公益慈善
Locale: zh-CN
Region: China
Search intent: 想找公益募捐故事范文、慈善项目人物案例文案、适合公众号和视频传播的公益故事模板
SEO keywords: 公益故事文案, 募捐项目案例, 人物故事模板, 慈善传播文案, 公益短视频旁白
Regional nuance: 符合中国公益传播语境，强调事实核验、项目进展公开、捐赠透明、平台链接转化和信任背书。
Market notes: Favor mobile-first density, direct utility, trust signals, and references to common Chinese business workflows.
Template hint: 适合募捐页模板、公益传播文案模板
Prefer a commercially readable concept with strong structure and drafting utility.

Linked knowledge digest:
No linked knowledge files.

Recent memory digest:
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