Supplement Number 1

The Supplementary Material provides additional data and analyses supporting the results presented in the main text. It includes the criteria used for state identification, simulation conditions, quantum wavelength and expansion factor, enthalpy and isobaric heat capacity, radial distribution functions, centroid velocity autocorrelation functions, phonon density of states, mean square displacements, and non-Gaussian parameters. Additional results for stress and energy current autocorrelation functions, together with detailed analyses of shear viscosity and thermal conductivity, are also provided. A table summarizing the fitted exponents of the fractional Stokes-Einstein relation is included.