BTC experienced a sharp drop overnight, reaching the second support level of 75880-75548 mentioned earlier, before finding support and rebounding several times, allowing short-term profit-taking to take profits. The current price action is a standard pattern of returning to a downtrend across all timeframes. Given the panic following the large bearish candle, further downside risk should be anticipated. Short-term resistance is at 77669-78527, short-term support is at 74910-74707 (monitor closely and trade quickly, avoid entering on sharp drops), and the second support level is at 73348-72355.