They generally stick to evolutionary designs rather than revolutionary ones to reduce dev risk. For example, the Type-055 is largely based on the Type-052D while the new Type-076 UAV carrier is derived from the Type-075 LHD. Hate to say it but top-notch aesthetics.
In many ways, they have been trend-setters in their own right with neighboring countries like Taiwan even copying/adapting their catamaran-hulled Type-022 Houbei class missile boat design for their own navy.