diff --git a/js/enemies.js b/js/enemies.js
index b420432..1d6e814 100644
--- a/js/enemies.js
+++ b/js/enemies.js
@@ -166,24 +166,46 @@ function shuffled(n){const a=[];for(let i=0;i<n;i++)a.push(i);for(let i=n-1;i>0;
 function bossBeam(x1,y1,x2,y2,w,col,tele,dur,dmg,src){  // Boss光束：tele帧预警→dur帧伤害；src={b,ox,oy,followX2}时发射点跟随Boss
   G.bbeams.push({x1,y1,x2,y2,w,col,tele,life:dur,dmg:dmg||20,cd:0,src:src||null});
 }
-function spawnFunnels(b,n){  // 夺权者X：银钉无人机（环绕僚机，瞄准/散射轮换）
+function spawnFunnels(b,n){  // 夺权者X：蓝白长钉无人机（环绕僚机；定期脱离环绕摆阵型齐射）
   for(let i=0;i<n;i++)
-    G.funnels.push({x:b.x,y:b.y,sa:i/n*TAU+0.5,t:rndi(0,40),fireT:rndi(50,110)+i*18,mode:i%2?"aim":"scatter",flashT:0});
+    G.funnels.push({x:b.x,y:b.y,sa:i/n*TAU+0.5,t:rndi(0,40),fireT:rndi(50,110)+i*18,slot:i,flashT:0});
 }
 function updateFunnels(){
-  const b=G.boss;
+  const b=G.boss,n=G.funnels.length;
+  if(b&&!b.dead&&n){
+    if(b.formT===undefined)b.formT=rndi(340,520);
+    if(b.form){b.form.t++;if(b.form.t>170)b.form=null;}   // 阵型演出：40帧入位→4轮齐射→归位
+    else if((b.laserT||0)<=0&&--b.formT<=0){   // 巨宽激光期间不排阵
+      b.form={pat:rndi(0,2),t:0};
+      G.funnels.forEach((f,i)=>{f.slot=i;});
+      b.formT=rndi(480,660);
+    }
+  }
   for(const f of G.funnels){
     f.t++;if(f.flashT>0)f.flashT--;
-    if(b&&!b.dead){f.sa+=0.014;
-      f.x+=(b.x+Math.cos(f.sa)*46-f.x)*0.09;
-      f.y+=(b.y+16+Math.sin(f.sa)*20-f.y)*0.09;}
-    if(b&&b.laserT>0)continue;   // 巨宽核心激光期间僚机停火（仍环绕）
-    f.fireT--;
-    if(f.fireT<=0){  // 银色高弹速长钉：瞄准单发 / 三发散射 轮换
-      const ap=aimPt(),a=Math.atan2(ap.y-f.y,ap.x-f.x);
-      if(f.mode==="aim"){ebul(f.x,f.y,a,4.8,"dartS",15);f.mode="scatter";f.fireT=rndi(64,96);}
-      else{for(let k=-1;k<=1;k++)ebul(f.x,f.y,a+k*0.24,3.9,"dartS",13);f.mode="aim";f.fireT=rndi(100,140);}
-      f.flashT=5;}
+    if(b&&!b.dead){
+      f.sa+=0.014;
+      const ringX=b.x+Math.cos(f.sa)*46,ringY=b.y+16+Math.sin(f.sa)*20;
+      if(b.form){   // 脱离环绕摆阵型：横队垂直向下 / 两翼外张扇形 / 集火瞄准
+        const fm2=b.form,i=f.slot||0,nn=Math.max(1,n-1);
+        let tx,ty,fa;
+        if(fm2.pat===0){tx=b.x+(i-nn/2)*26;ty=b.y-30;fa=Math.PI/2;}
+        else if(fm2.pat===1){const sd=i%2?1:-1;tx=b.x+sd*(36+Math.floor(i/2)*16);ty=b.y+6+Math.floor(i/2)*8;fa=Math.PI/2+sd*0.55;}
+        else{tx=b.x+(i-nn/2)*18;ty=b.y+26;fa=null;}
+        if(fm2.t<150){f.x+=(tx-f.x)*0.11;f.y+=(ty-f.y)*0.11;}
+        else{f.x+=(ringX-f.x)*0.09;f.y+=(ringY-f.y)*0.09;}   // 归位回环绕
+        if((b.laserT||0)>0)continue;
+        if(fm2.t>=40&&fm2.t<140&&fm2.t%26===0){
+          const a2=fa===null?Math.atan2(aimPt().y-f.y,aimPt().x-f.x):fa;
+          ebul(f.x,f.y,a2,4.6,"dartS",14);f.flashT=5;}
+      }else{
+        f.x+=(ringX-f.x)*0.09;f.y+=(ringY-f.y)*0.09;
+        if((b.laserT||0)>0)continue;   // 巨宽核心激光期间停火（仍环绕）
+        f.fireT--;
+        if(f.fireT<=0){const a=Math.atan2(aimPt().y-f.y,aimPt().x-f.x);
+          ebul(f.x,f.y,a,4.8,"dartS",15);f.fireT=rndi(70,120);f.flashT=5;}
+      }
+    }
   }
   G.funnels=G.funnels.filter(f=>!f.dead);
 }
@@ -196,6 +218,7 @@ function startBoss(){
   G.boss={idx,x:W/2,y:-60,ty:64,hp:b.hp*hpM,maxhp:b.hp*hpM,r:(b.rr?b.rr[0]:b.r),ry:(b.ryy?b.ryy[0]:undefined),t:0,phase:0,transT:0,
     col:b.col,name:b.name,sub:b.sub,fireM:BAL.fireMul(n)*(G.diff===1?BAL.hard.fire:1),dead:false,
     mainT:100,minorT:9999,minorSet:[],rerollT:340,ax:W/2,ay:64,mt:0,landed:false};
+  if(b.main==="piano")G.boss.mainT=36;   // 激光钢琴：缩短开局空窗
   G.bossN++;SFX.warn();MUS.start(true);
   banner("WARNING — "+b.name,"#ff5566",150);
 }
@@ -210,7 +233,7 @@ function updateBoss(){
   let np=0;for(let i=0;i<thr.length;i++)if(ratio<=thr[i])np=i+1;
   if(np>b.phase){b.phase=np;b.transT=70;b.r=(def.rr&&def.rr[np])||b.r;b.ry=(def.ryy&&def.ryy[np])||undefined;
     G.eb.length=0;G.bbeams.length=0;b.keys=null;SFX.warn();G.shake=Math.max(G.shake,5);
-    if(b.idx===6){G.funnels.length=0;if(np===1){spawnFunnels(b,2);b.plT=Math.round(300/b.fireM);}}   // 夺权者X二阶段：换为2架僚机
+    if(b.idx===6){G.funnels.length=0;b.form=null;if(np===1){spawnFunnels(b,4);b.plT=Math.round(300/b.fireM);}}   // 夺权者X二阶段：增至4架僚机
     banner(b.name+" — 第"+["一","二","三"][np]+"形态","#ff5566",90);}
   if(b.transT>0){b.transT--;
     if(b.transT===0){explodeFx(b.x,b.y,"dark",1.3);G.shake=Math.max(G.shake,6);
@@ -275,12 +298,12 @@ function bossMain(b,def,fm){
     case "assault":  // 暗黑突击：启动冲撞（锚点记当前位置，冲撞归来后正弦从此继续）
       b.dashSt={ph:"tele",t:52};b.ax=b.x;b.ay=b.y;b.mainT=9999;break;
     case "piano": {  // 激光钢琴：21键，四种模式轮换——顺扫(逼走位)/反扫/乱序/齐射
-      if(!b.keys)b.keys={n:21,seq:[],i:0,t:40,hot:-1,hotT:0,hotList:null,mode:3};
+      if(!b.keys)b.keys={n:21,seq:[],i:0,t:8,hot:-1,hotT:0,hotList:null,mode:3};
       const ks=b.keys,n=ks.n;
       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)*4.75+kh*9.5;
-            bossBeam(b.x+kx,b.y+18,b.x+kx,H+8,4,"#43e8ff",12,20,18,{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});}
           ks.hotList=null;ks.hot=-1;SFX.eshoot();}}
       ks.t--;
       if(ks.t<=0&&ks.hotT<=0){
@@ -290,10 +313,10 @@ function bossMain(b,def,fm){
           else if(ks.mode===1){ks.seq=[];for(let i=n-1;i>=0;i--)ks.seq.push(i);}
           else if(ks.mode===2){ks.seq=shuffled(n);}
           else{ks.seq=[];for(let i=0;i<6+ph*2;i++)ks.seq.push(-1);}   // -1=齐射标记
-          ks.i=0;ks.t=Math.round((ph?36:56)/fm);
+          ks.i=0;ks.t=Math.round((ph?24:40)/fm);
         }else{const cur=ks.seq[ks.i++];
-          if(cur===-1){const pool=shuffled(n);ks.hotList=pool.slice(0,4+ph*2);ks.hotT=16;ks.t=Math.round((ph?34:50)/fm);}
-          else{ks.hot=cur;ks.hotT=7;ks.t=Math.round((ph?3:5)/fm);}   // 扫射模式：快速连发
+          if(cur===-1){const pool=shuffled(n);ks.hotList=pool.slice(0,4+ph*2);ks.hotT=9;ks.t=Math.round((ph?22:34)/fm);}
+          else{ks.hot=cur;ks.hotT=3;ks.t=Math.round((ph?2:3)/fm);}   // 扫射模式：快速连发
         }
       }
       b.mainT=6;break;}
@@ -301,10 +324,10 @@ function bossMain(b,def,fm){
       for(let i=0;i<10+ph*4;i++)ebul(b.x,b.y,i/(10+ph*4)*TAU+b.t*0.03,1.6+0.2*ph,"orbO");
       if(b.t%240<3)for(let i=0;i<1+ph;i++)spawnEnemy(ph>=2?"kami":"mini",b.x+rnd(-30,30),b.y+8,false);
       b.mainT=Math.round(Math.max(34,70-8*ph)/fm);break;
-    case "usurper":  // 夺权者X：银钉无人机（P1四架/P2两架僚机）；P2周期性巨宽核心激光（压制其他攻击）
+    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,4);}
-        for(const sd of[-1,1]){const px2=b.x+sd*55,py2=b.y-4,a6=Math.atan2(ap2.y-py2,ap2.x-px2);
+        if(!b.fn0){b.fn0=1;spawnFunnels(b,2);}
+        for(const sd of[-1,1]){const px2=b.x+sd*37,py2=b.y-4,a6=Math.atan2(ap2.y-py2,ap2.x-px2);
           ebul(px2,py2,a6,4.4,"dartS",15);}
         b.mainT=Math.round(46/fm);
       }else{
@@ -350,7 +373,7 @@ function bossMinor(b,mk,fm){
   }
 }
 function hurtBoss(dmg){
-  const b=G.boss;if(!b||b.dead||b.transT>0||b.y<b.ty-1)return;   // 入场未到位/变形转场期间不掉血
+  const b=G.boss;if(!b||b.dead||b.transT>0||!b.landed)return;   // 入场未到位/变形转场期间不掉血（landed锁：防站桩Boss爬升后永远满足 y<ty 而免疫）
   const def=BOSSES[b.idx],thr=def.phases===2?[0.5]:[0.66,0.33];
   const floor=b.phase<thr.length?thr[b.phase]:0;      // 当前血管的底
   b.hp-=dmg;b.flash=2;
diff --git a/js/render.js b/js/render.js
index 2328f4f..f27d798 100644
--- a/js/render.js
+++ b/js/render.js
@@ -95,7 +95,7 @@ function drawBoss(){
     if(ph2===0||mp!==null){ // 侧舱（变身时抛离飞走）
       const jt=mp||0;
       if(jt<0.99)for(const sd of[-1,1]){ctx.save();
-        ctx.translate(sd*(55+jt*90),jt*60);ctx.rotate(sd*jt*0.7);ctx.globalAlpha=1-jt*0.8;
+        ctx.translate(sd*(37+jt*95),jt*60);ctx.rotate(sd*jt*0.7);ctx.globalAlpha=1-jt*0.8;
         px(-11,-22,22,44,"#aab8cc");px(-11,-22,22,4,"#43b8ff");
         px(-8,18,16,6,"#8a9ab8");
         for(let i=0;i<3;i++)px(-3,-10+i*8,6,4,fl||"#ff3355");
@@ -121,17 +121,18 @@ function drawBoss(){
       px(-10,-4,5,4,fl||"#ff3355");px(5,-4,5,4,fl||"#ff3355");
       px(-9,-3,2,1,"#ffdfe5");px(6,-3,2,1,"#ffdfe5");
       ctx.globalAlpha=1;}
-    const sB=Math.PI/2-open*0.55,sT=Math.PI/2-open*0.35;   // 半环跨幅：前端裂口扩得更快
-    for(const sd of[-1,1]){
-      const a0=sd<0?Math.PI-sB:-sT,a1=sd<0?Math.PI+sT:sB;   // 左半环[π-sB,π+sT] 右半环[-sT,sB]
+    const rot=open*0.55;   // 外壳下边分开，以顶部为轴外旋，下端打开
+    for(const sd of[-1,1]){ctx.save();
+      ctx.translate(0,-R);ctx.rotate(-sd*rot);ctx.translate(0,R);   // 绕顶端轴旋转：下端向外打开
+      const a0=sd<0?Math.PI/2:-Math.PI/2,a1=sd<0?Math.PI*1.5:Math.PI/2;   // 左半环/右半环
       ctx.strokeStyle="#55336e";ctx.lineWidth=13;
       ctx.beginPath();ctx.arc(0,0,R,a0,a1);ctx.stroke();
       ctx.strokeStyle="#6e4490";ctx.lineWidth=5;
       ctx.beginPath();ctx.arc(0,0,R,a0,a1);ctx.stroke();
-      for(const ea of[a0,a1]){ctx.save();   // 裂口断茬（随弧端移动）
-        ctx.translate(Math.cos(ea)*R,Math.sin(ea)*R);ctx.rotate(ea+Math.PI/2);
-        px(-6,-8,12,4,"#2a1a3a");px(-3,-11,6,3,"#2a1a3a");ctx.restore();}
-      for(let k=0;k<3;k++){const aa=a0+(0.32+k*0.18)*(a1-a0);
+      const hL=3+open*26;   // 半环下端伸长变尖：圆环下半部分延续为朝下的锥刺（同一几何体）
+      poly([-6.5,R,6.5,R,2.5,R+hL*0.55,0,R+hL,-2.5,R+hL*0.55],"#55336e");
+      poly([-3.5,R,3.5,R,1.2,R+hL*0.5,0,R+hL*0.8,-1.2,R+hL*0.5],"#6e4490");
+      for(let k=0;k<3;k++){const aa=a0+(0.35+k*0.2)*(a1-a0);
         const rx=Math.cos(aa),ry=Math.sin(aa),tx2=-ry,ty2=rx;
         const bl=2+9*fo;   // 铆钉→尖刺连续伸长
         poly([rx*(R+5)+tx2*2.5,ry*(R+5)+ty2*2.5, rx*(R+5)-tx2*2.5,ry*(R+5)-ty2*2.5, rx*(R+5+bl),ry*(R+5+bl)],fo>0.6?"#c86bff":"#2a1a3a");
@@ -145,9 +146,10 @@ function drawBoss(){
         px(-2.5,-3,5,4,"#2a1a3a");
         px(-1.5,-3-bl2,3,bl2,fo>0.4?(fl||"#ff3355"):"#3a2248");
         ctx.restore();}
-      for(let k=0;k<2;k++){const aa2=a0+(0.32+k*0.36)*(a1-a0)+Math.sin(t*0.012+k*2)*0.05;   // 环面光点
+      for(let k=0;k<2;k++){const aa2=a0+(0.35+k*0.3)*(a1-a0)+Math.sin(t*0.012+k*2)*0.05;   // 环面光点
         px(Math.cos(aa2)*R-2,Math.sin(aa2)*R-2,4,4,"#c86bff");}
-    }
+      ctx.restore();}
+    circ(0,-R,4,"#6e4490");   // 顶部铰链节
   }
   if(flashA>0){ctx.globalAlpha=flashA;ctx.strokeStyle="#fff";
     ctx.beginPath();ctx.arc(0,0,b.r+6,0,TAU);ctx.stroke();ctx.globalAlpha=1;}
@@ -177,8 +179,9 @@ function drawBoss(){
 function drawProgenitor(t,fl,tf){ // 太空原种：同一躯体连续演化（tf 0=虫蛹→1=完全体），无部件凭空出现
   ctx.rotate(Math.sin(t*0.05)*0.05);
   const wE=Math.min(1,tf*1.2);   // 展翅进度
-  // —— 翅膀：折叠时收在躯体正后方（被身体完全遮住），自背后向两侧展开 ——
+  // —— 翅膀：折叠时收在躯体正后方偏下（被身体完全遮住），自背后向两侧展开 ——
   ctx.save();
+  ctx.translate(0,10);
   ctx.scale(0.05+0.95*wE,(0.55+0.45*wE)*(1+Math.sin(t*0.07)*0.04*wE));
   poly([0,-20,-26,-14,-52,-4,-76,6,-58,12,-34,10,-16,16,0,20],"#c86aa8");
   poly([0,-20,26,-14,52,-4,76,6,58,12,34,10,16,16,0,20],"#c86aa8");
@@ -249,12 +252,16 @@ function drawPiano(b,t,fl,split){ // 激光钢琴（split=裂壳进度0~1）
     px(Math.cos(a)*110-1.5,6+Math.sin(a)*30-1.5,3,3,"#9fb4d8");}
 }
 /* ---- Boss光束与浮游炮渲染 ---- */
+function drawFunnel(f){   // 蓝白长钉无人机（单架）
+  poly([f.x,f.y-5,f.x+4,f.y+3,f.x-4,f.y+3],"#cfe4ff");
+  px(f.x-1,f.y-1,2,3,"#43b8ff");
+  if(f.flashT>0){ctx.globalAlpha=0.6;px(f.x-3,f.y+3,6,3,"#ffffff");ctx.globalAlpha=1;}
+}
+function drawFunnelsBack(){   // 转到Boss上半部（背后）的无人机先画，被机体遮挡
+  for(const f of G.funnels)if(Math.sin(f.sa)<-0.15)drawFunnel(f);
+}
 function drawBossFx(){
-  for(const f of G.funnels){   // 银钉无人机
-    poly([f.x,f.y-5,f.x+4,f.y+3,f.x-4,f.y+3],"#cfe4ff");
-    px(f.x-1,f.y-1,2,3,"#43b8ff");
-    if(f.flashT>0){ctx.globalAlpha=0.6;px(f.x-3,f.y+3,6,3,"#ffffff");ctx.globalAlpha=1;}
-  }
+  for(const f of G.funnels)if(Math.sin(f.sa)>=-0.15)drawFunnel(f);   // 下半部（身前）后画
   for(const bm of G.bbeams){
     if(bm.tele>0){if(G.time%4<2){ctx.globalAlpha=0.5;ctx.strokeStyle=bm.col;ctx.lineWidth=1;
       ctx.beginPath();ctx.moveTo(bm.x1,bm.y1);ctx.lineTo(bm.x2,bm.y2);ctx.stroke();ctx.globalAlpha=1;}}
@@ -312,7 +319,7 @@ function render(){
         px(e.x-w2/2,e.y-e.dh/2-3,w2,2,"#3a1020");
         px(e.x-w2/2,e.y-e.dh/2-3,w2*fr,2,fr>0.4?"#5cff9d":"#ff5566");}
     }
-    drawBoss();drawBossFx();
+    drawFunnelsBack();drawBoss();drawBossFx();
     // 敌弹（圆形光晕烘焙在精灵内）
     for(const b of G.eb){
       if(b.scale&&b.scale!==1){const sp=SPR[b.spr];   // 成长弹（花弹）
diff --git a/js/sprites.js b/js/sprites.js
index 7730f34..d32ce03 100644
--- a/js/sprites.js
+++ b/js/sprites.js
@@ -99,14 +99,14 @@ function orb(c1,c2){
   ".HHCCCHH.",
   "...HHH..."],{H:halo,W:"#ffffff",C:c2});
 }
-const BHALO={orbR:"#ff5566",orbP:"#b05ce8",orbG:"#5cff9d",orbO:"#ff9a3d",dartB:"#3a8cd8",flowr:"#ff8fc8",dartS:"#cfe4ff",dartP:"#b98cff"};
+const BHALO={orbR:"#ff5566",orbP:"#b05ce8",orbG:"#5cff9d",orbO:"#ff9a3d",dartB:"#3a8cd8",flowr:"#ff8fc8",dartS:"#5ec4ff",dartP:"#b98cff"};
 SPR.dartB=bake(["KCCCK",".CCC.",".CWC.","..C.."],{K:"#0d2433",C:"#3a8cd8",W:"#cfeaff"}); // 蓝色锥形敌弹（Boss弹幕）
 SPR.flowr=bake([
 "....P....",".P..P..P.","..PPPPP..",".PPWWWPP.","PPPWWWPPP",
 ".PPWWWPP.","..PPPPP..",".P..P..P.","....P...."],
 {P:"#ff8fc8",W:"#ffffff"}); // 太空原种：花弹（圆形八刺，会逐渐变大）
-SPR.dartS=bake(["SWS","SWS","SWS","SWS","SWS","SWS",".S.",".W."],
-{S:"#cfe4ff",W:"#ffffff"}); // 夺权者X：银色高弹速长钉
+SPR.dartS=bake(["WW","WW","CC","CC","CC","CC","CC","CC","CC","CC","CC","CC"],
+{W:"#f2fbff",C:"#5ec4ff"}); // 夺权者X：蓝白细长钉（2×12）
 SPR.dartP=bake(["KPPPK",".PPP.",".PWP.","..P.."],{K:"#2a1040",P:"#b98cff",W:"#ead9ff"}); // 暗黑魔碟：紫锥弹
 SPR.orbR=orb("#ffe9e9","#ff5566");SPR.orbP=orb("#f4e9ff","#b05ce8");
 SPR.orbG=orb("#e9ffe9","#5cff9d");SPR.orbO=orb("#fff4d9","#ff9a3d");