\begin{figure*}[p] 
    \centering
    
    \begin{subfigure}[b]{0.95\linewidth}
        \centering
        \includegraphics[width=\linewidth, height=0.28\textheight, keepaspectratio]{figures/logit_lens/baseline/Qwen_Qwen3_4B_Instruct_2507_logit_diff_trajectories.png}
        \caption{Logit difference ($logit_{\text{valid}} - logit_{\text{invalid}}$) across layers for each quadrant.}
    \end{subfigure}
    
    \vfill 
    
    \begin{subfigure}[b]{0.95\linewidth}
        \centering
        \includegraphics[width=\linewidth, height=0.28\textheight, keepaspectratio]{figures/logit_lens/baseline/Qwen_Qwen3_4B_Instruct_2507_prob_trajectories.png}
        \caption{Per-quadrant probability trajectories for P("Valid") and P("Invalid") across layers.}
    \end{subfigure}

    \vfill

    \begin{subfigure}[b]{0.95\linewidth}
        \centering
        \includegraphics[width=\linewidth, height=0.28\textheight, keepaspectratio]{figures/logit_lens/baseline/Qwen_Qwen3_4B_Instruct_2507_quadrant_comparison.png}
        \caption{Overlay of all four quadrants, showing trajectories grouped by plausibility rather than validity in later layers, consistent with content effect bias.}

    \end{subfigure}

    \caption{
        Logit lens analysis for Qwen/Qwen3-4B-Instruct (baseline).
    }
    \label{fig:app_instruct_analysis}
\end{figure*}

\clearpage

\begin{figure*}[p] 
    \centering
    
    \begin{subfigure}[b]{0.95\linewidth}
        \centering
        \includegraphics[width=\linewidth, height=0.28\textheight, keepaspectratio]{figures/logit_lens/sft/Qwen_Qwen3_4B_Instruct_2507_finetuned_logit_diff_trajectories.png}
        \caption{Logit difference ($logit_{\text{valid}} - logit_{\text{invalid}}$) across layers for each quadrant.}
    \end{subfigure}
    
    \vfill 
    
    \begin{subfigure}[b]{0.95\linewidth}
        \centering
        \includegraphics[width=\linewidth, height=0.28\textheight, keepaspectratio]{figures/logit_lens/sft/Qwen_Qwen3_4B_Instruct_2507_finetuned_prob_trajectories.png}
        \caption{Per-quadrant probability trajectories for P("Valid") and P("Invalid") across layers.}
    \end{subfigure}

    \vfill

    \begin{subfigure}[b]{0.95\linewidth}
        \centering
        \includegraphics[width=\linewidth, height=0.28\textheight, keepaspectratio]{figures/logit_lens/sft/Qwen_Qwen3_4B_Instruct_2507_finetuned_quadrant_comparison.png}
        \caption{Overlay of all four quadrants, showing trajectories grouped by plausibility rather than validity in later layers, consistent with content effect bias.}
    \end{subfigure}

    \caption{Logit lens analysis for the SFT model (Qwen/Qwen3-4B-Instruct).}
    \label{fig:app_sft_analysis}
\end{figure*}