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: 采购合同模板（设备/物料采购通用版）
Session id: document-zh-cn-采购合同模板-设备-物料采购通用版
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: 采购合同模板（设备/物料采购通用版）
Target audience: 采购经理、工厂行政、企业财务
Industry: 制造与供应链
Locale: zh-CN
Region: China
Search intent: 下载标准采购合同，降低采购合作风险
SEO keywords: 采购合同模板, 设备采购合同, 物料采购协议, 采购验收条款, 企业采购合同
Regional nuance: 符合中国企业采购流程，常见于先申请后比价再签约的场景，突出对公转账、增值税发票、到货验收与质保期设置。
Market notes: Favor mobile-first density, direct utility, trust signals, and references to common Chinese business workflows.
Template hint: 可配套采购订单、到货验收单、供应商信息表。

Linked knowledge digest:
No linked knowledge files.

Recent memory digest:
No recent memory summaries.

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