Slit-level, spatially resolved physical properties of the target system: stellar mass (log M_*; panel a), SFR (panel b), mass-weighted stellar age (${⟨a⟩}_{\ast }^{\mathrm{m}}$; panel c), ionization parameter (log U; panel d), V-band attenuation (A_V; panel e), slope (S; panel f) and UV bump (B; g) of the dust attenuation curve, attenuation derived from the Balmer decrement (A_V^B; panel h), and UV continuum slope (β; panel i). Both log M_* and SFR are corrected for the lensing magnification. The NIRCam 20mas F115W map of the system is shown as the background image.