% \begin{figure*}[ht]
%     \centering
%     \includegraphics[width=0.7\linewidth]{assets/model2.pdf}
%     \caption{MESSA framework with shared--specific sparse updates. Sparse structures are learned via budget-aware soft gating and overlap regularization, and hardened through a soft-to-hard training process under a unified parameter budget.}
%     % \caption{The architecture of CAM and HyCAM framework. HyCAM applies a hybrid CAM mechanism to the output of the Attention module within each Transformer block, while the backbone LLM remains frozen. Specifically, HyCAM integrates a shared, full-parameter CAM module and multiple lightweight Specialized CAMs for common and task-specific knowledge.} % with a dynamic routing strategy. % adaptively coordinates the contributions of these specialized modules.
%     \label{fig:framework}
% \end{figure*}