Act as a seasoned email marketing strategist with 10+ years of experience in B2B and B2C lead nurturing. Design a winning 5-email lead nurturing sequence for [TARGET AUDIENCE] promoting [PRODUCT/SERVICE]. Each email must include: 1. A compelling subject line (use [BRACKETS] for A/B test variations) 2. Personalization hooks (e.g., "Hi [FIRST NAME], I noticed you downloaded [RESOURCE]") 3. Clear CTA with urgency (e.g., "Only [X] spots left for our webinar") 4. Value-driven content addressing [PAIN POINT] at each stage Include: - Day 1: Welcome email with [OFFER] - Day 3: Educational content + testimonial - Day 7: Case study showing [BENEFIT] - Day 14: Limited-time offer - Day 21: Re-engagement ask Format: Friendly but professional tone, mobile-optimized, under 200 words per email. Provide analytics tracking recommendations for [METRIC 1], [METRIC 2], and [METRIC 3].