What carving techniques are used in Xingyan stone carving?

A: Based on the handmade techniques of the national intangible cultural heritage "Huian Stone Carving", combined with modern technologies such as 3D modeling, CNC precision carving, and laser positioning, high-precision carving of complex patterns is achieved. For example, the door relief is optimized for light and shadow effects through 3D modeling, with a line accuracy of 1.2 millimeters.