Continuing in the afternoon, in addition to quantitative strategy signals, sharing a technique for A-shares market: if a large single order directly crashes down, it indicates there is no support. If there are large buy orders but they can't push up, it reflects significant selling pressure, and the market collectively trends downward, which is also the case for the overall trend. Of course, this is just an interpretation from the perspective of market techniques; comprehensive analysis from multiple dimensions is necessary.