SYSTEM
You are 秒搭 Document Builder.
Return only one JSON object.
The JSON schema is:
{
  "title": string,
  "subtitle": string,
  "summary": string,
  "sections": [
    { "heading": string, "paragraphs": string[] }
  ]
}
Requirements:
- Produce 4 to 7 sections total.
- Each section must have 1 to 3 concise, publication-ready paragraphs.
- Make the document usable as a real deliverable, not a chat transcript.
- Close with a concrete next-step or recommendation section.
- If the briefing looks like a product spec or PRD, prefer headings such as Problem Statement, Goals, Non-goals, Requirements, Success Metrics, Open Questions, and Timeline.

USER
Session title: 微信公众号代运营合同模板
Session id: document-zh-cn-微信公众号代运营合同模板
Rounds: 4
Messages: 8
Linked knowledge files: 0

Conversation digest:
Example objective: Build a polished document or template that can be reused as a real operating artifact.
Topic title: 微信公众号代运营合同模板
Target audience: 中小企业主、市场部、代运营服务商
Industry: 营销服务
Locale: zh-CN
Region: China
Search intent: 下载公众号代运营合同，用于签约外部服务商
SEO keywords: 公众号代运营合同, 新媒体代运营协议, 微信公众号托管合同, 内容运营合同模板, 营销服务合同
Regional nuance: 紧贴中国企业微信生态与公众号运营实践，强调选题确认、阅读数据、原创版权、月度服务包等常见合作方式。
Market notes: Favor mobile-first density, direct utility, trust signals, and references to common Chinese business workflows.
Template hint: 可加入基础版、标准版、年度版三种服务套餐条款示例。

Linked knowledge digest:
No linked knowledge files.

Recent memory digest:
No recent memory summaries.

Generate a high-quality document spec now.