The growing demand for optimal urban multi-network coordination has intensified the interdependencies among urban transportation, energy systems, and carbon emissions, with integrated charging stations (ICSs) playing a pivotal role in this interconnected ecosystem. However, optimal coordination across these networks and hybrid pricing strategy for electricity and hydrogen trading remain significant challenges. This paper presents an optimal urban multi-network coordination framework, integrating the urban traffic network (UTN), power distribution network (PDN), urban hydrogen network (UHN), hydrogen supply chain (HSC), ICS, and carbon emission evaluation. The proposed framework aims to maximize regional social welfare, support low-carbon objectives, and optimize multi-network coordination through a two-layer iterative optimization process. Next, a hybrid pricing strategy for electricity and hydrogen trading is introduced, focusing on addressing urban safety constraints. This strategy employs peer-to-peer (P2P) trading for transactions between logistics operators and ICSs. Finally, simulation results on a IEEE 20-node UTN and IEEE 33-node PDN validate the efficiency and accuracy of the proposed framework, demonstrating improvements in multi-network coordination, reductions in traffic congestion and hydrogen transport risks, lower carbon emissions, and enhanced economic performance of both ICSs and central hydrogen production facility (CHPF).