**Day 7 behavior is a buying-signal, not just browsing.** Clicking contact info shows intent to reach a human, which historically correlates with higher conversion than content views. 第7天点击联系方式是明确的购买信号，比单纯浏览更接近成交。 **AI keeps the lead in C Pool because the predicted score (54) is still below the C→B threshold (60).** The score gap is only 6 points, so the system recognizes momentum but avoids premature sales handoff. AI未升级是因为预测分54低于升级线60；差距仅6分，说明有升温但仍需培育。 **Trigger low-friction, automated nurturing actions — not a full B2B proposal yet.** Send a personalized email with relevant case study / pricing overview, offer a short discovery call link, and set a 2-day follow-up task for sales dev rep. 应触发轻量自动化动作：发送案例与报价概览、提供简短咨询预约、设置2天跟进任务。 **Escalate to B Pool actions only after score crosses 60.** Once upgraded, trigger proposal draft, sales follow-up task, and account manager assignment. 只有分数突破60后才升级到B池动作：生成提案、销售跟进、分配客户经理。 **This sequence improves the odds of converting into a 100-unit distribution inquiry.** By warming the lead before sales touches it, you protect sales capacity and increase deal size potential. 通过先培育再交接，可提升100套分销询盘转化率并保护销售效率。