diff --git a/src/trainer/model.py b/src/trainer/model.py
index eb04e65..af3a24a 100644
--- a/src/trainer/model.py
+++ b/src/trainer/model.py
@@ -120,7 +120,10 @@ class MoEModel(nn.Module):
             norm_first=True,  # Pre-LN，与预训练一致
         )
         self.encoder = nn.TransformerEncoder(encoder_layer, num_layers=4)
-        self.pooler = nn.AdaptiveAvgPool1d(1)
+        self.pooler = nn.AdaptiveAvgPool1d(2)
+
+        self.linear = nn.Linear(self.hidden_size * 2, self.hidden_size)
+
 
         # 3. 专家层：8个领域专家 + 1个共享专家
         total_experts = num_domain_experts + num_shared_experts
@@ -138,6 +141,7 @@ class MoEModel(nn.Module):
             )
             self.experts.append(expert)
 
+
         self.expert_bias = nn.Embedding(
             total_experts, self.output_multiplier * self.hidden_size
         )
@@ -187,7 +191,9 @@ class MoEModel(nn.Module):
         )  # [B, S, H]
 
         # ----- 3. 池化量 -----
-        pooled = self.pooler(encoded.transpose(1, 2)).squeeze(-1)
+        pooled = self.pooler(encoded.transpose(1, 2))   # [B, H, 2]
+        pooled = pooled.flatten(1)                      # [B, H*2]
+        pooled = self.linear(pooled)
 
         # ----- 4. 专家路由（硬路由）-----
         if torch.jit.is_tracing():