Evening market focus: Bitcoin's four-hour death cross confirmed, MACD below zero line with increased volume and extended movement, indicating that bearish momentum continues to strengthen.

Trading volume remains high, suggesting this is a volume-supported decline with active capital exit, rather than a no-volume shakeout. Resistance and selling pressure above are continuously increasing, with chips loosening significantly. Downside space has not been fully released yet.

Operational suggestion: Short around 67,600-68,200, targeting 66,000-65,400, break below 64,200.