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: Angebots-E-Mail und Follow-up Texte für Maschinenbau B2B-Vertrieb
Session id: copy-de-de-angebots-e-mail-und-follow-up-texte-für-maschinenbau-b2b-vertrieb
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: Angebots-E-Mail und Follow-up Texte für Maschinenbau B2B-Vertrieb
Target audience: Vertriebsleiter, Account Manager, mittelständische Industrieunternehmen
Industry: Maschinenbau / Industrial
Locale: de-DE
Region: Germany
Search intent: B2B Angebotsmail Vorlage für Industrie und Maschinenbau suchen
SEO keywords: Angebotsmail B2B Vorlage, Follow-up E-Mail Vertrieb Deutsch, Maschinenbau Vertriebstexte, Angebot nachfassen Vorlage, B2B Sales Copy Deutschland
Regional nuance: Im deutschen Industrievertrieb zählen technische Klarheit, belastbare Aussagen, Lieferfähigkeit und seriöser Ton mehr als aggressive Sales-Sprache.
Market notes: Favor precision, structure, technical clarity, and compliance-oriented details.
Template hint: B2B Offer Email Sequence
Need landing-page copy, SEO-aligned messaging, and multichannel campaign variants.

Linked knowledge digest:
No linked knowledge files.

Recent memory digest:
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