Circumstellar material density profile as inferred from the EM. Data from NuSTAR, Swift-XRT, and EP-FXT are indicated by the red, green, and blue circles, respectively. The dashed gray lines represent the wind-like density profiles corresponding to mass-loss rates of Ṁ = 10⁻⁵, 10⁻⁴, 10⁻³ M_⊙ yr⁻¹. The dashed blue line denotes the power-law fit to the X-ray light curve. The inferred radial density profile ρ_CSM ∝ R^{−2.19 ± 0.10} is compatible with a homogeneous mass-loss wind within ∼2σ.