Bitcoin daily chart closes with another down candle, forming a three-day consecutive decline pattern. The short-term bearish momentum continues, and the price has returned to near the middle band of the Bollinger Bands. From a technical perspective, maintaining the 89000 level tonight will be difficult; once it is broken, there is a risk of further correction downward.

Structurally, the current situation remains within a daily chart box pattern. 89000 is a key support level; if it is effectively broken, it is highly likely that the price will directly probe the bottom of the box at around 85000.

In terms of trading strategy, focus on the performance around the 89000 region tonight. Once this support is broken, it is advisable to adopt a bearish outlook. From the trend observed since Thursday night, the 90500-90800 zone is a resistance area, and subsequent targets should focus on the support band between 89000 and 87000.