Summary of the full 5D constraints from the joint fit of the OB-star and embedded-source LFs. The diagonal panels show the marginalized 1D posterior distributions of the five model parameters, normalized to their peak values. The off-diagonal panels show the corresponding 2D profiled confidence regions, with contours at Δχ² = 2.30, 6.17, and 11.8, corresponding to the 1σ, 2σ, and 3σ confidence levels for the two parameters. Red stars mark the posterior medians. The closed, relatively compact contours indicate that the joint fit provides meaningful constraints on all five parameters.