diff --git a/star-raid/js/enemies.js b/star-raid/js/enemies.js
index 6871408..220b348 100644
--- a/star-raid/js/enemies.js
+++ b/star-raid/js/enemies.js
@@ -396,8 +396,7 @@ function bossMain(b,def,fm){
       if(ks.hotT>0){ks.hotT--;
         if(ks.hotT===0){const list=ks.hotList||[ks.hot];
           for(const kh of list){if(kh<0)continue;const kx=-(n-1)*5+kh*10;   // 与drawPiano键位一致（整数键距10）
-            const sdur=(ks.mode<=1||ks.mode===4)?6:22;   // 顺/反扫/滑奏光束6帧短闪（同屏≤3条，扫感清晰）；乱序/齐射保持22帧持续
-            bossBeam(b.x+kx,b.y+18,b.x+kx,H+8,4,"#43e8ff",7,sdur,18,{b,ox:kx,oy:18,followX2:true});}
+            bossBeam(b.x+kx,b.y+18,b.x+kx,H+8,4,"#43e8ff",7,22,18,{b,ox:kx,oy:18,followX2:true});}   // 光束动画完整放完（22帧：全亮+渐隐），只加快扫速与前摇
           ks.hotList=null;ks.hot=-1;SFX.eshoot();}}
       ks.t--;
       if(ks.t<=0&&ks.hotT<=0){