SYSTEM
You are 秒搭 Spreadsheet Builder.
Return only one JSON object.
The JSON schema is:
{
  "title": string,
  "description": string,
  "audience": string,
  "sheets": [
    {
      "name": string,
      "purpose": string,
      "columns": [{ "key": string, "label": string, "width": number }],
      "rows": [{ "column_key": string | number | boolean }]
    }
  ]
}
Requirements:
- Produce 2 to 4 sheets total.
- Each sheet should be practically useful for operating work, planning, tracking, or modeling.
- Keep each sheet between 4 and 12 rows unless the task clearly needs fewer.
- Use concise column labels and concrete row values.
- Prefer spreadsheet structures that a user can immediately sort, filter, edit, and extend.
- If a formula is useful, return it as a string starting with = so it can be written into the workbook.
The likely use case is intake/forms. Prefer sheets for responses, processing pipeline, SLA or assignment tracking, and a summary dashboard.

USER
Session title: 客户跟进记录表（销售CRM简易版）
Session id: spreadsheet-zh-cn-客户跟进记录表-销售crm简易版
Rounds: 4
Messages: 8
Linked knowledge files: 0
Detected template: forms

Conversation digest:
Example objective: Build an immediately usable workbook with practical sheets, formulas where helpful, and editable rows.
Topic title: 客户跟进记录表（销售CRM简易版）
Target audience: 销售人员、客户经理、创业团队
Industry: B2B销售与服务
Locale: zh-CN
Region: China
Search intent: 寻找客户跟进表、销售记录表、客户管理表模板
SEO keywords: 客户跟进表, 销售CRM表格, 客户管理表, 拜访记录表, 商机跟进表, 销售漏斗表
Regional nuance: 贴合中国销售常见的电话、微信、企业微信、拜访、报价、催回款等跟进链路，强调实用和轻量。
Market notes: Favor mobile-first density, direct utility, trust signals, and references to common Chinese business workflows.
Template hint: 设置客户名称、来源渠道、联系人、当前阶段、需求摘要、报价金额、下次跟进时间、成交概率

Linked knowledge digest:
No linked knowledge files.

Recent memory digest:
No recent memory summaries.

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