Okay, I need to create a Wikipedia-style document about "Customer-Centric Marketing" under the categories of Economics, Market and Business, and Marketing Strategy. Let me start by understanding the requirements.

First, the structure: H1 for the title, an overview section, several sections with H2 and H3 headings, and maybe references or related documents. The content needs to be accurate, objective, detailed, easy to read, and use professional terms with explanations. Also, markdown formatting with proper headings, lists, tables, code blocks if needed, and at least 800 characters.

Starting with the title: "고객 중심 마케팅" as given. Then an overview section explaining what it is, its importance, maybe a brief history or key principles. Next sections could be on core concepts, strategies, implementation steps, challenges, case studies, and references.

For the core concepts, I should define customer-centric marketing, differentiate it from traditional approaches. Maybe include elements like customer experience, data analytics, personalization. Then strategies: segmentation, CRM, omnichannel, feedback loops. Implementation steps could involve research, strategy development, execution, measurement. Challenges might be data privacy, resource allocation, changing consumer behavior.

I need to make sure each section has H2 and H3 headings. For example, under core concepts, maybe H2 "핵심 개념" with H3 for each element. Also include examples or case studies in a separate section. Use bullet points or tables where appropriate. Avoid markdown code blocks unless there's technical content, which I don't think is needed here.

Check that all terms are explained. For instance, CRM stands for Customer Relationship Management, so maybe explain it briefly. Ensure the language is clear and not too jargon-heavy. Keep paragraphs concise. Make sure the total length meets 800 characters; since this is a detailed document, it should be sufficient.

Wait, the user said "최소 800자 이상" which is about 800 characters, but in Korean, that's roughly 400-500 words. However, given the structure and content required, I think it will easily exceed that. Just need to make sure each section is adequately covered without being too verbose.

Also, check for any possible errors in terminology or concepts. For example, ensuring that customer-centric marketing is correctly contrasted with product-centric approaches. Mentioning key strategies like personalization, data-driven decisions, and omnichannel presence.

Include references or related documents at the end, maybe citing some well-known sources or theories. But since it's a wiki-style document, perhaps just list relevant topics or books without actual citations unless specified.

Finally, review the markdown structure to ensure proper headings, lists, and formatting. Avoid any markdown that isn't necessary. Make sure the flow is logical from introduction to detailed sections.