Left: Comparison of the stellar kinematics measured from NIRSpec G235H/F170LP observations and the best-fit JAM (with 1σ error) with a constant M/L_F814W (solid blue line) and M/L_F160W (solid red line). Discrepancies between the data and model are apparent beyond $0\stackrel{″}{.}75$, as marked by the dash vertical line. Right: Best-fit radially varying M/L_F814W profile (described in Sect. 2; solid blue line). It exhibits a step-like characteristic with $M/L_{0\stackrel{″}{.}75}=8.3$ M_⊙/L_⊙ at $r\le 0\stackrel{″}{.}75$ and $M/L_{2\stackrel{″}{.}0}=8.39{\mathrm{M}}_{\odot }$/L_⊙ at $r\ge 2\stackrel{″}{.}0$. Between these radii, the M/L_F814W profile increases linearly. Similarly, for the best-fit radially varying M/L_F160W profile (Appendix D; solid red line), we adopt $M/L_{0\stackrel{″}{.}75}=3.38{\mathrm{M}}_{\odot }$/L_⊙ at $r\le 0\stackrel{″}{.}75$ and $M/L_{2\stackrel{″}{.}0}=3.40{\mathrm{M}}_{\odot }$/L_⊙ at $r\ge 2\stackrel{″}{.}0$. Here, the M/L_F160W profile is vertically offset by a value of 4.95 M_⊙/L_⊙ for visualization.