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: 直播带货开场话术模板：3分钟拉停留、促下单
Session id: copy-zh-cn-直播带货开场话术模板-3分钟拉停留-促下单
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: 直播带货开场话术模板：3分钟拉停留、促下单
Target audience: 直播运营、电商商家、主播团队
Industry: 电商零售
Locale: zh-CN
Region: China
Search intent: 用户想快速找到可直接复制的直播开场文案，提升停留时长和转化率。
SEO keywords: 直播带货话术, 直播开场白模板, 主播促单文案, 抖音直播话术, 直播间互动文案
Regional nuance: 强调福袋、限时秒杀、下单立减、粉丝团等国内直播电商常见机制，适配移动端高密度表达习惯。
Market notes: Favor mobile-first density, direct utility, trust signals, and references to common Chinese business workflows.
Template hint: 按“欢迎入场—福利说明—爆品亮点—互动留人—限时催单”结构输出短句模板。
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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