Luminosity-weighted orbit fractions and mean stellar ages of the cold, warm, and hot components within R_e as a function of the galaxy stellar mass. In the top panel, the blue, orange, and red lines represent the luminosity-weighted fractions of the cold, warm, and hot components in different mass bins. In the bottom panel, the coloured solid lines with dots denote the mean ages of the cold, warm, and hot components within different mass bins derived from model B. The coloured shadows represent the overall uncertainties of model B. For comparison, the mean ages of the cold, warm, and hot components derived from model A are shown by the coloured dashed lines, with the coloured error bars representing the typical overall uncertainties of model A at the low-mass and high-mass ends.