Top row: Radial ΔMS profiles for PCA-classified lenticular galaxies: S0–AC+TR (light blue) and S0–PS (red), smoothed with a Gaussian kernel of bandwidth 0.4 R_vir. Bottom row: Same as the top row, but using the ΔMS-based classification: S0–MS (blue), S0–GV (green), and S0–QS (red). Each row also includes profiles for elliptical (E, black), early-type spiral (Sa+Sb, orange), late-type spiral (Sc+Sd, purple), star-forming (SF, magenta), and the full S0 population (brown). Columns show: left, all galaxy subsets; center, only those with evidence of star formation; right, the most quiescent ones. Clustercentric distances are normalized by the virial radius of each host cluster. Profiles are computed using data out to 4 R_vir, although the sample sizes shown in the legends correspond to galaxies within 3 R_vir (see text). Shaded regions represent 1σ confidence intervals from 1000 bootstrap resamples.