Trading Strategy
1. Maintain long positions initiated at 78.0, adjusting stop loss upwards for protection. Short-term target：80.60 (partial profit-taking)，81.3(close).
2. For those without positions, consider opening long positions near 78.5, with a stop loss at 77.7. Short-term target: 80.60 (partial profit-taking)， 81.3(close).
3. The medium-term trading strategy remains unchanged. target: 80.60 - 81.3 - 82.40 - 84.80.
1. Maintain long positions initiated at 78.0, adjusting stop loss upwards for protection. Short-term target：80.60 (partial profit-taking)，81.3(close).
2. For those without positions, consider opening long positions near 78.5, with a stop loss at 77.7. Short-term target: 80.60 (partial profit-taking)， 81.3(close).
3. The medium-term trading strategy remains unchanged. target: 80.60 - 81.3 - 82.40 - 84.80.
