diff --git a/PdkFriendServer/Logic/IsmctsBot.cs b/PdkFriendServer/Logic/IsmctsBot.cs
index d90fad0b..bf9d5a52 100644
--- a/PdkFriendServer/Logic/IsmctsBot.cs
+++ b/PdkFriendServer/Logic/IsmctsBot.cs
@@ -187,21 +187,25 @@ namespace PdkFriendServer.Logic
                     }
                 }
 
-                // 4.5. afterMin 牌效率加权
+                // 4.5. afterMin 牌效率加权（强化版）
                 int beforeMin = HandOptimizer.MinPlays(hand);
                 for (int i = 0; i < scoredCandidates.Count; i++)
                 {
                     var (p, wr, am, m) = scoredCandidates[i];
                     if (am < beforeMin)
                     {
-                        // 出牌后手牌结构变好 → 加权
+                        // 手牌结构变好 → 大幅加分
                         double improvement = (double)(beforeMin - am) / beforeMin;
-                        wr += improvement * 0.12; // 最多 +12% 当 minPlays 减半
+                        wr += improvement * 0.25; // max +25%
                     }
-                    else if (am > beforeMin && m)
+                    else if (am > beforeMin)
                     {
-                        // 多牌出牌反而把手牌打散了 → 惩罚
-                        wr -= 0.03;
+                        // 手牌被打散 → 惩罚
+                        double degradation = (double)(am - beforeMin) / beforeMin;
+                        if (m)
+                            wr -= degradation * 0.30; // 多牌打散 → 严重(-30%)
+                        else
+                            wr -= degradation * 0.10; // 单张打散 → 中(-10%)
                     }
                     scoredCandidates[i] = (p, wr, am, m);
                 }
diff --git a/exe/PdkFriendServer/PdkFriendServer.dll b/exe/PdkFriendServer/PdkFriendServer.dll
index 79572a14..8c13f08b 100644
Binary files a/exe/PdkFriendServer/PdkFriendServer.dll and b/exe/PdkFriendServer/PdkFriendServer.dll differ
diff --git a/exe/PdkFriendServer/PdkFriendServer.pdb b/exe/PdkFriendServer/PdkFriendServer.pdb
index 5e3632c5..8439580b 100644
Binary files a/exe/PdkFriendServer/PdkFriendServer.pdb and b/exe/PdkFriendServer/PdkFriendServer.pdb differ
diff --git a/exe/hjha-console/PdkFriendServer.dll b/exe/hjha-console/PdkFriendServer.dll
index 79572a14..8c13f08b 100644
Binary files a/exe/hjha-console/PdkFriendServer.dll and b/exe/hjha-console/PdkFriendServer.dll differ
diff --git a/exe/hjha-console/PdkFriendServer.pdb b/exe/hjha-console/PdkFriendServer.pdb
index 5e3632c5..8439580b 100644
Binary files a/exe/hjha-console/PdkFriendServer.pdb and b/exe/hjha-console/PdkFriendServer.pdb differ