$BTC Perpetual price 71,591.2, up 5.06% in 24 hours, with a high of 72,773.9 and a low of 67,680.2, trading volume has significantly increased. The 4-hour EMA is in a bullish alignment, MACD has a golden cross upward, the super trend has turned red, indicating strong short-term rebound momentum. The medium to long-term 90-day and 180-day trends are still downward, so caution is needed around the 72k resistance level. Short-term outlook is bullish, but risk management should be emphasized.