Bitcoin today generally maintains a volatile upward trend, surging to around 79.5k in the early session before slightly pulling back. Currently, it is consolidating around 78k. The bulls are temporarily in the lead, but the upward momentum has slowed. The four-hour Bollinger Bands are opening upward, with the price running along the upper band. The MACD continues to expand, and the moving averages are forming a golden cross above the zero line, indicating a breakout and strengthening trend. Short-term support is around 77k, with limited retracement space during the daytime. It is advisable to rely on support levels for long positions and rebound trading, but the overall outlook remains somewhat bearish.