钢琴血量2500→5000翻倍；夺权者X体量放大（P1整体1.25x=参考图占屏2/3宽母舰，P2战机1.15x加厚），判定rr[0]52→58同步，发射点/炮位按放大后坐标同步；修复换二阶段机身瞬移：移动从绝对正弦公式改速度积分定位（usp/amp突变位置也连续），y振幅缓变。仅语法检查通过，未运行验证

star-raid/js/boss_art.js

@@ -82,7 +82,7 @@ function drawUsurper(b,t,fl,ph2,mp){
   const jt=mp||0;
   // —— P2粗壮宽翼战机（壳下常存，mp渐显；宽翼+厚机身+三引擎，绝不细瘦） ——
   if(ph2>=1){const di=mp!==null?mp:1;
-    ctx.save();ctx.globalAlpha=di;const ds=0.7+0.3*di;ctx.scale(ds,ds);
+    ctx.save();ctx.globalAlpha=di;const ds=(0.7+0.3*di)*1.15;ctx.scale(ds,ds);
     for(const sd of[-1,1]){   // 后掠宽翼（翼展±30）
       poly([sd*11,0,sd*28,-13,sd*32,-7,sd*13,8],"#c9d6e2");
       poly([sd*11,0,sd*28,-13,sd*26,-10,sd*12,3],"#e8f4ff");   // 翼面受光
@@ -104,8 +104,8 @@ function drawUsurper(b,t,fl,ph2,mp){
       px(sd*5-1.5,-38-(t%4),3,3+(t%4),t%6<3?"#7fd8ff":"#43b8ff");}
     px(-1.5,-34,3,3,"#5a6c80");px(-1,-39-(t%4),2,2+(t%4),"#7fd8ff");
     ctx.restore();ctx.globalAlpha=1;}
-  // —— P1巨舰（变形=甲板抛离飞走+舰体淡出） ——
+  // —— P1巨舰（变形=甲板抛离飞走+舰体淡出；整体1.25倍放大=参考图体量） ——
-  if(ph2===0||mp!==null){const hullA=1-jt;
+  if(ph2===0||mp!==null){ctx.save();ctx.scale(1.25,1.25);const hullA=1-jt;
     if(hullA>0.02){ctx.save();ctx.globalAlpha=hullA;
       // 主舰体：三段式宽塔（厚重霸气）
       poly([0,36,-24,14,-20,-14,-12,-36,12,-36,20,-14,24,14],"#d8e4f0");
@@ -149,7 +149,7 @@ function drawUsurper(b,t,fl,ph2,mp){
         px(tx3-1,dy-12,1.5,5,"#5a6c80");px(tx3+1,dy-12,1.5,5,"#5a6c80");
         px(tx3-1.5,dy-14,2,2,"#ff3355");px(tx3+0.5,dy-14,2,2,"#ff3355");}
       ctx.restore();ctx.globalAlpha=1;}
-  }
+    ctx.restore();}
 }
 /* ---- 暗黑魔碟：8扇区缝合装甲碟+红能量窗/裂纹+紫红竖瞳魔眼 ----
    变形沿用原机制（mp优先）：P2圆环绕顶轴外旋裂开+魔眼点亮；P3爆甲壳板飞离+铆钉伸长成刺+犄角炮台 */

star-raid/js/enemies.js

@@ -192,9 +192,9 @@ const BOSSES=[
  {name:"太空原种",sub:"SPACE SPAWN",hp:1350,col:"#ff8fc8",r:20,rr:[20,34],ryy:[26,18],wide:1,main:"spawn",minors:["wiggle","spikeSnipe","sporeArc","tentBeam","mawSnipe","wingRain"],phases:2},
  {name:"歼灭者",sub:"ANNIHILATOR",hp:1700,col:"#b05ce8",r:22,main:"annihilate",minors:["aimSpread","spawnMine"],phases:3},
  {name:"暗黑突击",sub:"DARK ASSAULT",hp:2100,col:"#ff3355",r:9,rr:[9,10,11],ryy:[5,6,7],main:"assault",minors:["rain","aimSpread"],phases:3},
- {name:"激光钢琴",sub:"LASER PIANO",hp:2500,col:"#43e8ff",r:26,rr:[100,100],ryy:[30,30],main:"piano",minors:["topRain","pedal"],phases:2,static:1},
+ {name:"激光钢琴",sub:"LASER PIANO",hp:5000,col:"#43e8ff",r:26,rr:[100,100],ryy:[30,30],main:"piano",minors:["topRain","pedal"],phases:2,static:1},
  {name:"母巢核心",sub:"HIVE CORE",hp:2800,col:"#ff9a3d",r:22,main:"hive",minors:["spawnMini","aimSpread","ring"],phases:3},
- {name:"夺权者X",sub:"USURPER X",hp:3700,col:"#e8f4ff",r:24,rr:[52,26],ryy:[34,40],wide:1,main:"usurper",minors:["deckVolley","pillar","aimSpread"],phases:2},
+ {name:"夺权者X",sub:"USURPER X",hp:3700,col:"#e8f4ff",r:24,rr:[58,26],ryy:[34,40],wide:1,main:"usurper",minors:["deckVolley","pillar","aimSpread"],phases:2},
  {name:"暗黑魔碟",sub:"DARK SAUCER",hp:4500,col:"#8a5cff",r:24,rr:[30,32,34],main:"saucer",minors:["ringBig","coneFan","crossEye","dartSpiral"],phases:3},
  {name:"黑石要塞",sub:"BLACKSTONE",hp:3400,col:"#5cff9d",r:30,rr:[34,37],ryy:[26,28],wide:1,main:"blackstone",minors:["deckGuns","crackRift","starLine"],phases:2},
  {name:"泰伦虫族母舰",sub:"TYRANID HIVESHIP",hp:3200,col:"#7dff8a",r:26,rr:[26,29,32],ryy:[36,38,40],main:"hivespawn",minors:["sporeBloom","tentSweep","acidGas"],phases:3}
@@ -300,7 +300,9 @@ function updateBoss(){
   // —— 常规移动 ——
   if(def.static){b.x+=(W/2-b.x)*0.05;b.y+=(52-b.y)*0.02;}
   else if(b.idx===3){b.x=W/2+Math.sin(b.mt*0.034)*62;b.y=b.ty+Math.sin(b.mt*0.021)*18;}   // 暗黑突击：小体型高机动（空闲大幅提速）
-  else if(b.idx===6){const usp=b.phase>=1?0.028:0.008;b.x=W/2+Math.sin(b.mt*usp)*(b.phase>=1?70:44);b.y=b.ty+Math.sin(b.mt*0.011)*(b.phase>=1?12:8);}   // 夺权者X：P1巨大笨重→P2紧凑灵活
+  else if(b.idx===6){const usp=b.phase>=1?0.028:0.008,amp=b.phase>=1?70:44;
+    b.x=clamp(b.x+amp*usp*Math.cos(b.mt*usp),30,W-30);   // 速度积分定位：换阶段参数突变也不瞬移
+    b.yA=(b.yA||8)+((b.phase>=1?12:8)-b.yA)*0.05;b.y=b.ty+Math.sin(b.mt*0.011)*b.yA;}   // 夺权者X：P1巨大笨重→P2紧凑灵活
   else{b.x=W/2+Math.sin(b.mt*0.013)*(def.wide?44:70);b.y=b.ty+Math.sin(b.mt*0.011)*(def.wide?8:12);}   // 通用游走提速+上下浮动（钢琴站桩除外）
   b.mt++;
   const fm=b.fireM*(1+0.22*b.phase);
@@ -309,7 +311,7 @@ function updateBoss(){
     const span=46*(0.22+0.78*(b.phase>=1?1:0.62));
     ebul(b.x+rnd(-span,span),b.y+rnd(-10,2),Math.PI/2+rnd(-0.08,0.08),rnd(2.2,3.4),"orbR",12);}
   if(b.idx===6&&b.deckT>0){b.deckT--;   // 夺权者X：甲板齐射——炮口逐个点亮（前摇26帧）后6发垂直弹雨
-    if(b.deckT===0)for(const sd of[-1,1])for(const gx of[14,24,44])ebul(b.x+sd*gx,b.y+6,Math.PI/2,2.6,"dartB",14);}
+    if(b.deckT===0)for(const sd of[-1,1])for(const gx of[18,30,55])ebul(b.x+sd*gx,b.y+9,Math.PI/2,2.6,"dartB",14);}
   if(b.idx===8){   // 黑石要塞：亚空间主炮序列（纹路充能52帧→巨柱扫动80帧）
     if(!b.plT||b.plT<=0)b.plT=Math.round((b.phase>=1?380:460)/fm);
     else{
@@ -432,7 +434,7 @@ function bossMain(b,def,fm){
     case "usurper":  // 夺权者X：蓝白长钉无人机（P1两架/P2四架僚机）；P2周期性巨宽核心激光（压制其他攻击）
       if(ph===0){
         if(!b.fn0){b.fn0=1;spawnFunnels(b,2);}
-        for(const sd of[-1,1]){const px2=b.x+sd*14,py2=b.y+6,a6=Math.atan2(ap2.y-py2,ap2.x-px2);
+        for(const sd of[-1,1]){const px2=b.x+sd*18,py2=b.y+9,a6=Math.atan2(ap2.y-py2,ap2.x-px2);
           ebul(px2,py2,a6,4.4,"dartS",15);}   // 发射点=最下甲板炮口（与drawUsurper同源）
         b.mainT=Math.round(46/fm);
       }else{