### Technical Analysis:
1. **Trend Judgment**:
- **Short-term**: MACD histogram turns positive and RSI is neutral to strong (58.67), indicating short-term rebound momentum. However, MA(7) < MA(21) < MA(99) (82,473 < 82,880 < 84,647), showing a bearish arrangement in medium to long-term moving averages, overall trend remains bearish.
- **Key Resistance**: Watch for pressure at MA(21) (82,880) and MA(99) (84,647); if broken, may test previous high around 89,139.
- **Key Support**: 24-hour low price at 81,290; if broken, further decline may test the 80,900 area.
2. **Indicator Signals**:
- **KDJ**: J value (72.27) is overbought, short-term pullback possible.
- **Trading Volume**: Current trading volume is below the 5-day/10-day average, rebound lacks volume support, need to be cautious of false breakouts.
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### Contract Suggestions:
- **Long Position Strategy** (High Risk):
- **Entry**: If the price stabilizes above MA(21) (82,880) with increased volume, consider entering a small long position, target 84,200 (near MA(99)).
- **Stop Loss**: Set below 82,000 to prevent false breakouts.
- **Short Position Strategy** (Conservative):
- **Entry**: If the price rebounds to MA(21) (82,880) and faces resistance, or breaks below the support at 81,290, consider entering short positions in batches, target 80,900.
- **Stop Loss**: Set above 83,300 to avoid sudden rebound risks.
- **Risk Control Tips**:
- Current market has significant divergence between bulls and bears, recommend controlling positions at 5%-10%, avoiding high leverage.
- Watch if RSI enters overbought zone (>70) or oversold zone (<30), adjust strategy based on candlestick patterns.
**Conclusion**: Short-term oscillation is bearish, recommend focusing on short positions with strict stop loss. If key resistance levels are broken, then follow up with long positions.