This is going from memory, so I may be wrong in the details,
but the new Chinese destroyers deploy the YJ-18 vertical launch anti-ship supersonic missiles that can take out carriers. This is in addition to the supersonic wave-skipping Yakhont and Sunburn missiles already in use. Attacking China from the sea is one hazardous mama.
I assume that you know that all of those systems are experimental?
None are deployed. And the U.S. armed forces will shoot large holes in any facility that is researching those systems in the first .1 second of any conflict