Comprehensive evaluation of potential stock investments combining valuation analysis, fundamental research, technical assessment, and clear buy/hold/sell recommendations. Use when the user asks about buying a stock, evaluating investment opportunities, analyzing watchlist candidates, or requests stock recommendations. Provides specific entry prices, position sizing, and conviction ratings.

结合估值分析、基本面研究和技术评估，对潜在股票投资进行全面评估，并提供明确的买入、持有或卖出建议。适用于用户询问购买股票、评估投资机会、分析自选股候选标的或请求股票推荐时使用。提供具体的入场价格、仓位规模和信心评级。