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: Vertriebstexte für Messe-Nachfassaktionen im deutschen B2B
Session id: copy-de-de-vertriebstexte-für-messe-nachfassaktionen-im-deutschen-b2b
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: Vertriebstexte für Messe-Nachfassaktionen im deutschen B2B
Target audience: Marketing-Manager, Vertriebsmitarbeiter, Aussteller auf Fachmessen
Industry: B2B Marketing / Events
Locale: de-DE
Region: Germany
Search intent: Messe Follow-up Vorlage für B2B Kontakte finden
SEO keywords: Messe Follow-up E-Mail Vorlage, B2B Nachfassmail Messe, Lead Follow-up Deutsch, Fachmesse Vertriebstexte, Terminvereinbarung nach Messe
Regional nuance: Im deutschen B2B-Umfeld funktioniert ein sachlicher Bezug auf Gesprächsinhalte, Anwendungsfälle und nächste Schritte besser als zu allgemeine Networking-Floskeln.
Market notes: Favor precision, structure, technical clarity, and compliance-oriented details.
Template hint: Post-Event Follow-up Sequence
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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