- **Day 7 behavior shows explicit buying intent, not passive interest.** Requesting a callback signals the lead wants human contact and is evaluating next steps. **中文：** 第7天要求回电，说明这不是随便看看，而是有明确购买意向，已进入评估阶段。 - **AI keeps the lead in C Pool because one strong signal isn’t enough to cross 60.** Predicted score 11 vs. C→B threshold 60 means fit/engagement data still lacks depth and repeat validation. **中文：** AI仍放在C池，是因为单次高价值行为不足以突破60分门槛，线索的匹配度和持续互动仍不够。 - **Trigger precise sales-assisted nurturing, not an automatic proposal.** Route to success team for callback, log call outcome, send post-call materials, and schedule a follow-up task. **中文：** 应触发销售辅助培育，而非自动发方案：转交成功团队回电、记录结果、发送会后资料，并创建后续跟进任务。 - **Use the callback to qualify the 100-unit distribution inquiry.** Confirm budget, timeline, learner volume, decision makers, and distribution format before preparing a formal B2B proposal. **中文：** 借回电确认预算、时间表、学员数量、决策人和分销形式，再决定是否准备正式B2B方案。 - **Business outcome: protect pipeline quality while increasing conversion probability.** The system avoids premature upgrade, keeps sales effort focused, and warms a potentially large distribution deal. **中文：** 业务结果是保证管道质量并提升转化概率：避免过早升级，集中销售资源，同时培育潜在的大额分销商机。