A more detailed look is necessary, but it looks like the Chinese did a good job of NOT reinventing the wheel. They used established working design elements as well as keeping some commonality with their past designs to possibly make for an easier transition. First, the lower receiver is very much like the Palmetto State AR-47. AK style magazine interface up front and AR pattern FCG in the back. Though the pics aren't good enough for my eyes to see if it is AR FCG, AK, or something else. As was noted, adjustable LOP. What a game changer that has been! Everyone criticized the collapsible stock of the XM177, and as a way of reducing the size, yeah it isn't much. Body armor changed the picture and now most every new design incorporates some form of adjustable stock. Smart move by the Chinese. No folding stock, which is somewhat unusual, but not a big deal. I have rifles with folding stocks and I almost never have a reason to fold them. I wonder why they went with the buffer and spring in the stock instead of the traditional AK or AR18 recoil spring styles? Possibly because it does a better job of smoothing out the recoil impulse. It looks like a short stroke piston system, AR18 style. The barrel is fairly heavy, so they are probably anticipating heat issues and lots of FA use. Everyone has pretty much adopted the M1913 Picatinny rail interface for optics, so that makes sense. The rear sight looks fixed, not removable. The handguard looks a little more complex than our civilian designs. It does appear to be free-floating, which would be necessary for the folding front sight to retain accuracy, and the bipod mounted laser. The slots may just be for cooling, but they could be M-LOK. I've seen Keymod on at least two earlier rifles, so they might have made that switch as well. Rather than a simple cylindrical handguard with add on panels, they have incorporated what is probably the heat shield and main structural component with a standardized polymer insulation layer on the outside. Comparing the carbine and rifle handguards, without and with a light, it looks like they have a spot to bolt on a Picatinny rail section if needed.
Getting back to the bolt, it looks like a more squarish bolt carrier, and rotating bolt, ala AR18, SCAR, etc. Because they don't show the left side of the rifle, we can't tell if the charging handle can be switched to the other side. The AK style mag release/retention and the right side bolt handle would be consistent with their prior history going back to the AK. The positions of the safety are confusing to me. I can't tell which way it rotates from safe to fire, or whether it is intended to primarily use the thumb, or the trigger finger.
There was a question about whether their ammo would fit a 5.56mm chamber (with some slop). I don't think so. The curvature of the magazine indicates a lot more taper to the cartridge, so the case head diameter is probably quite a bit larger than the 5.56mm case. This is also a newer cartridge for them. They went from 7.62x39mm to 5.8x42mm, and now 5.54mm? That's opposite of our change to 5.56mm and now the big push to 6.8mm.