From the daily chart perspective, Bitcoin has attempted to rebound but its momentum has clearly weakened. The long upper shadows after multiple attempts to push higher indicate heavy selling pressure above, and the lack of buying follow-through suggests market liquidity is contracting. The current bearish trend still dominates the market rhythm.

On the four-hour chart, after touching the upper band of the Bollinger Bands, the price encountered strong resistance and then turned downward, experiencing continuous declines and volume expansion that broke through the lower band. The key support zone from earlier has been effectively broken, and several short- and medium-term moving averages have turned downward simultaneously, forming a bearish alignment. Overall, technical indicators suggest that the price still faces the risk of further decline in the short term.

It is recommended to short around 86000 and 86500, with the first target at 84000, and if broken, then look for a move down to 81000.