hv-analysis 是做什么的？
Horizontal-Vertical Analysis (H-V Analysis) Deep Research Skill. Proposed by Kazik Digital Life, it integrates Saussure's diachronic-synchronic analysis, longitudinal-cross-sectional research designs from social sciences, business school case study methods, and competitive strategy analysis. Use this when the user wants to systematically research a product, company, concept, technology, or individual. The core is dual-axis analysis: the vertical axis traces the complete life journey from inception to the present (presented as a narrative story), while the horizontal axis provides a systematic cross-sectional comparison with competitors/peers at the current time slice. Finally, cross the two axes to produce unique insights. The final output is a beautifully formatted PDF research report. Trigger words include but are not limited to: horizontal-vertical analysis, research, help me analyze, deep research, do a study, investigate, competitive analysis, tell me what this is about, what is this product/company/concept, help me figure it out, help me understand, do a deep research. Even if the user just says 'help me understand XX' or 'what's the story behind XX', as long as the context implies a need for systematic deep research (rather than a simple definition), the skill should be triggered. It is also suitable for scenarios where the user throws out a product name, company name, or technical term and says 'research this for me'. Do not use for simple definitions (user just asks 'what is XX'), do not use for WeChat public account writing (use khazix-writer for that), do not use for pure title/summary generation (use wechat-title).