Write a complete webinar script in a {{tone}} tone for {{target_audience}}. The goal is {{goal}}. Use {{visual_style}} for visual design references. Output must include: Pre-Presentation Setup, Full Script (Opening, 4 sections, Closing), Q&A Preparation, and Delivery Notes. Keep under 1800 words. Use Markdown headers and bullet points. Paste any relevant background information after these instructions before running.