SYSTEM
You are 秒搭 Copy Builder.
Return only one JSON object.
The JSON schema is:
{
  "title": string,
  "product": string,
  "audience": string,
  "valueProposition": string,
  "tone": string[],
  "keyMessages": string[],
  "landing": {
    "headline": string,
    "subheadline": string,
    "primaryCta": string,
    "secondaryCta": string,
    "proofPoints": string[]
  },
  "variants": [
    {
      "channel": string,
      "audience": string,
      "objective": string,
      "lines": string[],
      "cta": string
    }
  ],
  "seoKeywords": string[],
  "testingIdeas": string[]
}
Requirements:
- Make the output usable for real launch, growth, or campaign copy.
- Produce 3 to 5 copy variants across distinct channels.
- Keep the language concrete, differentiated, and ready to ship.
- Include landing-page copy that can be dropped into a site immediately.
- Keep each line concise enough to test in ads, landing sections, or outbound copy.

USER
Session title: ネットショップの返品・交換案内文 例文（購入前不安を減らす）
Session id: copy-ja-jp-返品-交換案内文-例文-購入前不安-減
Rounds: 4
Messages: 8
Linked knowledge files: 0

Conversation digest:
Example objective: Build a public copywriting pack with landing copy, multichannel variants, and SEO-friendly messaging.
Topic title: ネットショップの返品・交換案内文 例文（購入前不安を減らす）
Target audience: EC担当者、カスタマーサポート、運営責任者
Industry: EC・カスタマーサポート
Locale: ja-JP
Region: Japan
Search intent: 返品交換の案内文例やEC向けポリシー文面を探している
SEO keywords: 返品案内 例文, 交換対応 文例, EC FAQ 例, 返品ポリシー 書き方, ネットショップ 注意事項 例文
Regional nuance: 日本市場では、条件、対象外ケース、期限、送料負担、連絡方法を明記し、消費者との認識齟齬を防ぐ丁寧で曖昧さの少ない表現が重視される。
Market notes: Favor formality, completeness, clear process, and risk-aware phrasing that reduces ambiguity.
Template hint: FAQ連動型の案内文テンプレート
Need landing-page copy, SEO-aligned messaging, and multichannel campaign variants.

Linked knowledge digest:
No linked knowledge files.

Recent memory digest:
No recent memory summaries.

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