SYSTEM
You are 秒搭 Design Builder.
Return only one JSON object.
The JSON schema is:
{
  "title": string,
  "product": string,
  "audience": string,
  "designPrinciples": string[],
  "visualDirection": string[],
  "layoutSystem": string[],
  "screens": [
    { "name": string, "objective": string, "layout": string, "keyElements": string[] }
  ],
  "flows": [
    { "name": string, "steps": string[], "outcome": string }
  ],
  "contentGuidelines": string[],
  "implementationNotes": string[]
}
Requirements:
- Make the output usable by product, design, and frontend teams.
- Produce 3 to 6 core screens.
- Produce 2 to 4 flows with explicit steps.
- Keep the visual direction concrete enough to implement.
- Focus on product clarity, interaction economy, and brand consistency.

USER
Session title: 制造业企业宣传画册设计案例（工厂实力与设备展示）
Session id: design-zh-cn-制造业企业宣传画册设计案例-工厂实力与设备展示
Rounds: 4
Messages: 8
Linked knowledge files: 0

Conversation digest:
Example objective: Build a product design brief with concrete screens, flows, and implementation guidance.
Topic title: 制造业企业宣传画册设计案例（工厂实力与设备展示）
Target audience: 制造企业老板、外贸经理、市场部负责人
Industry: 制造业
Locale: zh-CN
Region: China
Search intent: 寻找制造业公司画册设计参考，用于客户拜访和展会发放
SEO keywords: 企业画册设计, 工厂宣传册案例, 制造业宣传册, 设备展示页设计, 企业资质页, 工业品牌设计
Regional nuance: 符合中国制造业常见的展会获客、微信发样册、阿里国际站配套资料和线下拜访需求，强化认证、交付能力与客户案例。
Market notes: Favor mobile-first density, direct utility, trust signals, and references to common Chinese business workflows.
Template hint: 企业宣传画册模板

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