Beijing's transformation into a global science and technology innovation center is accelerating regional integration in the Beijing-Tianjin-Hebei cluster. The initiative boosts collaborative R&D, industrial upgrading, and smart infrastructure development while addressing environmental and public service challenges. Current progress shows strengthened innovation networks between core and peripheral cities, with Beijing leading in R&D and neighboring areas specializing in manufacturing. However, obstacles remain in technology diffusion, regional disparities, and industrial chain development....