1. Key watershed level: 104100 is the watershed for bulls and bears, and the closing at the 4-hour level determines the subsequent trend direction. If the price stabilizes above this level, bulls are expected to dominate; conversely, bears will take the initiative.

2. Support points and lower support

- First support level: 102350. If the market is pressured and falls back, this position will become the initial defense line.

- Second support level: 100950. If 102350 is broken, this level may provide secondary support.

- Lower support level: 99200, strong support in extreme bearish conditions. If lost, be cautious of a larger decline.

3. Long strategy

- After a valid breakout above 104100 in the 4-hour closing, you may enter a long position with a small amount, setting the stop loss below 103500, targeting sequentially towards 105000 and 105860; if it breaks above 105860, further look towards the 107065 resistance level.

4. Short strategy

- If the 4-hour closing fails to stay above 104100, you may attempt to set up a short position, with a stop loss set above 104500, initially targeting the 102350 support level. If it effectively breaks down, you can continue to look towards 100950 or even 99200.

5. Summary: 104100 is the core watershed of the night market, and both bulls and bears will compete around this level. Everyone needs to closely monitor the closing situation at the 4-hour level, set stop losses and take profits strictly, operate cautiously near support and resistance levels, and flexibly adjust strategies in line with real-time market fluctuations to guard against potential risks.