You are a senior marketing strategist. Develop a detailed multi-channel campaign plan for launching [product name] targeting [target audience]. The campaign should span 4 weeks. For each week, specify: (1) Key objective, (2) Channels: email, social media (specify platforms), content marketing (blog, video, etc.), paid ads (Google, Facebook, etc.), (3) Specific tactics and creatives, (4) Success metrics. Consider the buyer's journey stages: awareness, consideration, conversion. Ensure messaging consistency. Provide a timeline table. End with a summary of budget allocation recommendations.