Integrated intensity profiles of the CH₃CN J = 6 − 5 (K = 0, 1, and 2) transitions at the δy positions of the dense core (left panel) and the PDR (right panel), as obtained from the ALMA 7 m+30 m observations. Each color corresponds to a different K-ladder transition, as indicated by the labels in the right panel. The observed data points are shown as circles, and the best-fit models are overlaid as solid lines in the corresponding colors. The red vertical line, the dotted vertical lines, and the horizontal gray bar are the same as in the left panels of Fig. 3.