2D temperature structure and dust temperature at ALMA surfaces for different disk models. Top: 2D temperature structure of the fiducial active disk model (left), Settling model (a_t = 10⁻⁴, second left), Top-heavy model (second right), and Porous model (right). The light green lines denote the height where the vertical extinction optical depth reaches unity at ALMA Bands 4 (solid), 6 (dashed), 7 (dash-dotted), and 8 (dotted). The maximum dust size a_max is 1 mm in the all models. Bottom: Dust temperature at the height where the vertical extinction optical depth at the ALMA wavelengths reaches unity. The radial profile is not convolved.