The project design adopts HHBT's Stepped-End-Plate (SEP) system. The third section has a total construction area of 5,691.96 ㎡, featuring one underground floor and four above-ground floors. The building extensively uses industrialized prefabricated components. It has 487.26 tons of steel structure, and the total volume of prefabricated concrete (PC) components (including exterior wall panels, interior wall panels, UTS floor slabs, and stairs) is 1,756.97 m³. All steel beams, columns, nodes, and various PC components are prefabricated in the factory and then transported to the site for fully assembled construction without any welding or on-site secondary casting, fully reflecting a green, efficient, and high-quality modern building industrialization approach.