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: 教育培训机构招生海报设计案例（寒暑假班招生）
Session id: design-zh-cn-教育培训机构招生海报设计案例-寒暑假班招生
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: 教育培训机构招生海报设计案例（寒暑假班招生）
Target audience: 培训机构校长、招生老师、市场专员
Industry: 教育培训
Locale: zh-CN
Region: China
Search intent: 查找能直接用于招生宣传的教育培训海报设计案例
SEO keywords: 招生海报设计, 教育培训海报, 寒假班宣传单, 暑假班海报案例, 课程招生物料, 培训机构设计
Regional nuance: 适配中国教培常见的微信社群招生、朋友圈裂变、到店咨询和试听课转化流程，强调信任感、家长关注点与二维码留资。
Market notes: Favor mobile-first density, direct utility, trust signals, and references to common Chinese business workflows.
Template hint: 招生海报与宣传单模板

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