Our research centers on the theoretical and phenomenological study of relativistic heavy-ion collisions and the quark–gluon plasma. It develops state-of-the-art hydrodynamic frameworks to capture the collective behavior of strongly interacting matter under extreme conditions, probes transport properties such as shear and bulk viscosities, and examines flow observables that illuminate the near-perfect fluid nature of the QCD medium. By combining high-precision numerical simulations with data from RHIC and the LHC, our work advances our understanding of QCD at high temperatures and densities and reveals the emergent collective dynamics of strongly coupled nuclear matter.