Bitcoin slightly rebounded from the 76,100 USD low, tested 77,800 USD at midday before facing resistance, remaining in a range-bound tug-of-war; during the evening session, it repeatedly touched around 77,000 USD, closing with lower shadows, indicating strong buying interest below. However, trading volume continued to shrink during the rebound, suggesting a lack of enthusiasm for chasing higher prices, with gains mainly from short covering rather than active buying. The 4-hour Bollinger Bands are narrowing at the upper and lower bands, with the channel width compressed to recent extremes, signaling an imminent trend reversal; short-term moving averages (MA7/30) repeatedly entangle around 77,200-77,500 USD, with an unclear direction. The MACD lines are below the zero axis, with weak red and green histograms, and RSI hovers around 45, indicating a temporary balance between bulls and bears. The key resistance zone is focused on 77,500-77,800 USD; only a volume-supported breakout above this area can open the way to test 78,500 USD. Support levels are concentrated at 76,600-77,000 USD; if volume-supported breakdown occurs, bears will again test the previous low of 76,100 USD. Operationally, it is recommended to buy low and sell high within the 76,600-77,500 USD range, with strict stop-losses, patiently waiting for a volume-supported breakout before following the trend.