Comparison of the intensity profile and total spectrum of the representative model convolved to the ALMA beam or simulated using the observed (u,   v)-coverage. Left panel: intensity profile extracted along the major axis of the disk. The vertical dashed line indicates the radius of the dust-free cavity. Right panel: total spectrum. The yellow region indicates regions affected by the foreground. Vertical dashed lines show the source velocity v_s = 4.55 km s^-1 and velocities v_s ± 4 km s^-1 representing velocity ranges corresponding to the inner disk (radii ≲60 AU).