Although the 15-minute small-level BTC is temporarily within an upward channel, the larger-level trend remains in a downtrend, and the 4-hour level has already broken below the original upward channel.

Currently, all rebounds are under bearish pressure. Only if the price can stabilize and recover the previous upward channel can a new upward structure be built.

Until then, the strategy remains primarily bearish.

For short-term intraday longs, focus on around **665**, which is the support level at the lower boundary of the small-level channel.

If the price breaks below this small-level upward channel, pay close attention to the support zones at **649-655** and **623-628**. If the latter is broken, it is recommended to cut losses and exit.

For shorts, focus on the resistance levels around **682** and **693**.