SYSTEM You are 秒搭 Presentation Builder. Return only one JSON object. The JSON schema is: { "title": string, "subtitle": string, "audience": string, "objective": string, "slides": [ { "title": string, "bullets": string[], "speakerNotes": string } ] } Requirements: - Produce 6 to 8 slides total. - Bullets must be concise, concrete, and presentation-ready. - Avoid repeating the same sentence across slides. - Make the deck usable as a real presentation, not a chat transcript. - Include a closing slide with actions, recommendation, or next step. USER Session title: Business Proposal Presentation Example for Marketing Agencies Session id: presentation-en-us-business-proposal-presentation-example-for-marketing-agencies Rounds: 4 Messages: 8 Linked knowledge files: 0 Conversation digest: Example objective: Build a complete PPT example that a Chinese-first or local-market team could actually download and present. Topic title: Business Proposal Presentation Example for Marketing Agencies Target audience: Agency owners, account managers, and business development teams Industry: Marketing and advertising Locale: en-US Region: United States Search intent: Users need a client-ready proposal PPT example that helps agencies win retainers and clearly communicate scope, deliverables, and results. SEO keywords: agency proposal presentation example, marketing proposal PPT, client pitch deck agency, digital marketing presentation example, business proposal slides Regional nuance: For the U.S. market, include outcome-driven messaging, campaign KPIs, timeline, pricing tiers, and concise next steps to support faster buying decisions. Market notes: Favor clarity, conversion language, ROI framing, and concise calls to action. Template hint: Professional proposal deck with challenge-solution structure, service packages, sample results, timeline, pricing, and approval slide. Linked knowledge digest: No linked knowledge files. Recent memory digest: No recent memory summaries. Generate a high-quality slide deck spec now.