The short-term bearish signals for the double bottom are fully triggered, and the rebound is purely a trap for more buying. Do not blindly buy in. The previous daily consecutive bearish candles set a bearish tone, and the long lower shadow on a single day is just a emotional pullback. The core resistance at 3100-3150 has not been broken, and funds do not recognize the rebound.

The four-hour descending triangle structure is clear, with the highs gradually declining, showing the bulls are weak. The support at 2870 has been tested multiple times. A volume breakout below this level would signal a new downtrend. The KDJ indicator is turning down without support, and the MACD green bars are shrinking, indicating a pause. Bearish momentum could rebound at any time. The double bottom was originally a tool for fund withdrawal; any rebound will face selling pressure.

Trading suggestion: Short around 3030-3070, targeting 2930-2870-2800. If broken, continue downward, and take profits steadily with the trend.