diff --git a/assets/backgrounds/quicksand_bg.png b/assets/backgrounds/quicksand_bg.png
new file mode 100644
index 0000000..1f150d3
Binary files /dev/null and b/assets/backgrounds/quicksand_bg.png differ
diff --git a/assets/characters.js b/assets/characters.js
index 1a776d5..a199ca4 100644
--- a/assets/characters.js
+++ b/assets/characters.js
@@ -33,6 +33,21 @@ async function loadRaces() {
         work_comm: rc.sprite_work,
       };
     });
+    // 荒漠蝎（流沙荒漠 boss）：Odoo 模板缺失时前端兜底注入。
+    // ⚠️ 正式上线应改为在 Odoo yt.world.race 建 desert_scorpion 模板（前端不写死数据）。
+    if (!map.desert_scorpion) {
+      map.desert_scorpion = {
+        name: '荒漠蝎', icon: '🦂', category: 'boss',
+        speed: 42, attack: 30, defense: 10, hpMax: 900, energyMax: 100,
+        attackRange: 76, regen: false, enrage: false, shieldRatio: 0,
+        trait: '流沙荒漠的霸主，甲壳坚硬的巨型蝎王',
+        fw: 96,            // 帧宽（默认 48，boss 用更宽帧横展体型）
+        scale: 1.9,        // 整体缩放：个头很大
+        walk: 'assets/characters/desert_scorpion/desert_scorpion_walk_1x6.png',
+        idle_attack: 'assets/characters/desert_scorpion/desert_scorpion_idle_attack_1x6.png',
+        work_comm: null,
+      };
+    }
     RACE_CONFIG = map;
     window.RACE_CONFIG = RACE_CONFIG;
     return true;
@@ -301,7 +316,7 @@ async function loadMicroChars() {
   updateCharPanel();
 }
 
-function createChar(race, x, y) {
+function createChar(race, x, y, opts) {
   const id = 'char_' + Date.now().toString(36) + '_' + Math.random().toString(36).slice(2, 5);
   const stats = raceStats(race);
   const rt = RACE_CONFIG[race] || {};
@@ -340,15 +355,25 @@ function createChar(race, x, y) {
     wanderInterval: 2 + Math.random() * 4,  // 2~6 秒
     _userMove: false,                   // 是否用户指令移动
     freeMove: charPlaceFreeMove,        // 自由移动开关（默认开）
+    boss: !!(opts && opts.boss),        // 是否首领（荒漠蝎等 boss）
   };
   microChars.push(ch);
-  selectChar(id);
+  if (!(opts && opts.noSelect)) selectChar(id);
   scheduleSaveChars(100);
   // 任务：首位居民（ch4_char）。createChar 是种族角色唯一创建入口，
   // 直接发 char_recruited 推进任务（不经由 microState.units，避免与角色 AI 渲染叠加）。
-  if (typeof emitTaskEvent === 'function') emitTaskEvent('char_recruited', { race: race });
+  if (!(opts && opts.skipTask) && typeof emitTaskEvent === 'function') emitTaskEvent('char_recruited', { race: race });
   return ch;
 }
+// 首领挑战·流沙荒漠：自动生成荒漠蝎 boss（仅当当前没有时才生成，避免重复）
+function ensureBossSpawn() {
+  if (microChars && microChars.some(c => c.race === 'desert_scorpion')) return;
+  if (typeof microCanvas === 'undefined' || !microCanvas) return;
+  const x = microCanvas.width / 2;
+  const y = microCanvas.height * 0.52;
+  createChar('desert_scorpion', x, y, { skipTask: true, noSelect: true, boss: true });
+  if (typeof updateCharPanel === 'function') updateCharPanel();
+}
 function getChar(id) { return microChars.find(c => c.id === id); }
 function selectChar(id) {
   microChars.forEach(c => {
@@ -386,8 +411,8 @@ function triggerCharAction(charId, action) {
   const ch = getChar(charId);
   if (!ch || !CHAR_STATES[action]) return false;
   const raceCfg = RACE_CONFIG[ch.race];
-  // 非智慧生物（动物）无工作/交流动作，禁止触发
-  if (raceCfg && raceCfg.category === 'animal' && (action === 'work' || action === 'communicate')) return false;
+  // 非智慧生物（动物）/ boss 无工作/交流动作，禁止触发
+  if (raceCfg && (raceCfg.category === 'animal' || raceCfg.category === 'boss') && (action === 'work' || action === 'communicate')) return false;
   ch.state = action;
   ch.frame = 0;
   ch.frameT = 0;
@@ -539,7 +564,7 @@ function updateChars(dt) {
       if (ch.freeMove !== false && !ch.selected && ch.state === 'idle') {
         // 非智慧生物（动物）不捡宝箱，直接走漫游逻辑
         const raceCfg = RACE_CONFIG[ch.race];
-        const isAnimal = raceCfg && raceCfg.category === 'animal';
+        const isAnimal = raceCfg && (raceCfg.category === 'animal' || raceCfg.category === 'boss');
         let goToChest = false;
 
         if (!isAnimal) {
@@ -750,6 +775,10 @@ function updateChars(dt) {
 function renderChars(ctx, time, mW, mH) {
   visibleMicroChars().forEach(ch => {
     const st = CHAR_STATES[ch.state];
+    // 每种族帧宽：默认 CHAR_FW(48)；荒漠蝎等 boss 用更宽帧（fw:96）横展体型
+    const rc = RACE_CONFIG[ch.race] || {};
+    const FW = rc.fw || CHAR_FW;
+    const rscale = rc.scale || 1;
 
     // 死亡动画：两阶段——先倒地（前50%，旋转90°、不透明），再消失（后50%，躺平渐隐）
     if (ch.dying) {
@@ -772,7 +801,7 @@ function renderChars(ctx, time, mW, mH) {
         ctx.translate(ch.x, ch.y);
         ctx.rotate(fallP * Math.PI / 2);           // 前 50% 旋转到底，后 50% 保持躺平
         ctx.globalAlpha = 1 - fadeP;               // 后 50% 渐隐
-        ctx.drawImage(img, fi * CHAR_FW, 0, CHAR_FW, CHAR_FH, -CHAR_FW / 2, -CHAR_FH * 0.9, CHAR_FW, CHAR_FH);
+        ctx.drawImage(img, fi * FW, 0, FW, CHAR_FH, -FW / 2, -CHAR_FH * 0.9, FW, CHAR_FH);
         ctx.restore();
       }
       return;   // 跳过正常渲染
@@ -781,7 +810,7 @@ function renderChars(ctx, time, mW, mH) {
     const img = loadCharSheet(ch.race, st.sheet);
     if (!img || !img.complete || img.naturalWidth === 0) return;
     const fi = st.base + ch.frame;
-    const drawX = ch.x - CHAR_FW * 0.5;
+    const drawX = ch.x - FW * 0.5;
     const drawY = ch.y - CHAR_FH * 0.90;
 
     // 路径拖尾（仅选中角色）
@@ -815,12 +844,11 @@ function renderChars(ctx, time, mW, mH) {
     ctx.fill();
     ctx.restore();
 
-    // 角色精灵
+    // 角色精灵（以脚底 ch.x,ch.y 为锚点缩放，支持 boss 大体型 + 朝向翻转）
     ctx.save();
-    ctx.translate(ch.x, 0);
-    ctx.scale(ch.facing, 1);
-    ctx.translate(-ch.x, 0);
-    ctx.drawImage(img, fi * CHAR_FW, 0, CHAR_FW, CHAR_FH, drawX, drawY, CHAR_FW, CHAR_FH);
+    ctx.translate(ch.x, ch.y);
+    ctx.scale(ch.facing * rscale, rscale);
+    ctx.drawImage(img, fi * FW, 0, FW, CHAR_FH, -FW * 0.5, -CHAR_FH * 0.9, FW, CHAR_FH);
     ctx.restore();
 
     // 受伤闪白（叠加半透明白）
@@ -828,7 +856,9 @@ function renderChars(ctx, time, mW, mH) {
       ctx.save();
       ctx.globalAlpha = Math.min(1, ch.hurtFlash * 2.5) * 0.55;
       ctx.fillStyle = '#ffffff';
-      ctx.fillRect(drawX, drawY, CHAR_FW, CHAR_FH);
+      ctx.translate(ch.x, ch.y);
+      ctx.scale(ch.facing * rscale, rscale);
+      ctx.fillRect(-FW * 0.5, -CHAR_FH * 0.9, FW, CHAR_FH);
       ctx.restore();
     }
 
@@ -964,8 +994,12 @@ function updateCharPanel() {
   const shieldHtml = ch.shieldMax > 0
     ? `<div style="margin-top:5px;color:#8a9aaa;font-size:11px;">🛡 护盾 <b style="color:#37c7f0;">${ch.shield}</b>/${ch.shieldMax}<span style="color:#667;">${ch.shield > 0 ? '' : '（未触发）'}</span></div>`
     : '';
-  const isAnimal = rc && rc.category === 'animal';
-  const actions = isAnimal ? ['idle', 'attack'] : ['idle', 'attack', 'work', 'communicate'];
+  const cat = rc && rc.category;
+  const actions = cat === 'boss'
+    ? ['idle', 'attack', 'walk']
+    : (cat === 'animal')
+      ? ['idle', 'attack']
+      : ['idle', 'attack', 'work', 'communicate'];
   const btns = actions.map(a => {
     const active = ch.state === a ? 'background:#2a4a6a;border-color:#5a9acc;' : '';
     return `<button class="charActBtn" data-act="${a}" style="${active}background:#1d2b4a;color:#cde;border:1px solid #3a5a8e;padding:5px 10px;border-radius:5px;cursor:pointer;font-size:12px;transition:background .15s;">${CHAR_CN[a]}</button>`;
@@ -1029,6 +1063,7 @@ window.renderChars = renderChars;
 window.hitChar = hitChar;
 window.clampCharToIsland = clampCharToIsland;
 window.updateCharPanel = updateCharPanel;
+window.ensureBossSpawn = ensureBossSpawn;
 window.allSheetsLoaded = allSheetsLoaded;
 window.loadCharSheet = loadCharSheet;
 window.preloadAllSheets = preloadAllSheets;
diff --git a/assets/characters/desert_scorpion/desert_scorpion_idle_attack_1x6.png b/assets/characters/desert_scorpion/desert_scorpion_idle_attack_1x6.png
new file mode 100644
index 0000000..beff568
Binary files /dev/null and b/assets/characters/desert_scorpion/desert_scorpion_idle_attack_1x6.png differ
diff --git a/assets/characters/desert_scorpion/desert_scorpion_walk_1x6.png b/assets/characters/desert_scorpion/desert_scorpion_walk_1x6.png
new file mode 100644
index 0000000..3a4f594
Binary files /dev/null and b/assets/characters/desert_scorpion/desert_scorpion_walk_1x6.png differ
diff --git a/assets/ui/boss_map_bg_b_final.png b/assets/ui/boss_map_bg_b_final.png
new file mode 100644
index 0000000..2f3c06a
Binary files /dev/null and b/assets/ui/boss_map_bg_b_final.png differ
diff --git a/assets/ui/boss_region_quicksand_v2.png b/assets/ui/boss_region_quicksand_v2.png
new file mode 100644
index 0000000..af21eab
Binary files /dev/null and b/assets/ui/boss_region_quicksand_v2.png differ
diff --git a/index.html b/index.html
index bdb1818..3a87e07 100644
--- a/index.html
+++ b/index.html
@@ -88,7 +88,7 @@
     .hero .enter-btn{font-size:15px;padding:11px 30px;}
   }
 
-  /* 进游戏开场动画（yusen 科技感）—— 总时长约 5.2s */
+  /* 进游戏开场动画（yuthon 科技感）—— 总时长约 5.2s */
   #introSplash {
     position: fixed; inset: 0; z-index: 600; overflow: hidden;
     display: flex; flex-direction: column; align-items: center; justify-content: center;
@@ -150,36 +150,18 @@
     letter-spacing: .4em; text-indent: .4em; color: rgba(150,200,255,.55); opacity: 0;
   }
   #introSplash.show .intro-sub { animation: introFade 1.2s ease 2.6s forwards; }
-  #introSplash .intro-skip {
-    position: absolute; bottom: 26px; z-index: 4; font-size: 12px; letter-spacing: .15em;
-    color: rgba(180,210,255,.4); opacity: 0;
-  }
-  #introSplash.show .intro-skip { animation: introFade 1s ease 3.6s forwards; }
-  #introSplash .intro-audio-unlock {
-    position: absolute; bottom: 58px; z-index: 5; cursor: pointer;
-    padding: 9px 20px; border-radius: 999px; font-size: 13px; letter-spacing: .12em;
-    color: #eaf6ff; background: rgba(74,175,255,.12);
-    border: 1px solid rgba(74,175,255,.5); box-shadow: 0 0 18px rgba(74,175,255,.35);
-    -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
-    opacity: 0; transition: opacity .4s ease, transform .2s ease;
-  }
-  #introSplash.show .intro-audio-unlock { opacity: 1; }
-  #introSplash .intro-audio-unlock:hover { transform: scale(1.05); }
-  #introSplash.hide .intro-audio-unlock { opacity: 0; }
   @keyframes introFade { to { opacity: 1; } }
 </style>
 <link rel="stylesheet" href="assets/story-player.css" />
 </head>
 <body>
-<!-- 进游戏开场动画（yusen 科技感） -->
+<!-- 进游戏开场动画（yuthon 科技感） -->
 <div id="introSplash">
   <div class="intro-grid"></div>
   <div class="intro-sweep"></div>
-  <div class="intro-logo">yusen</div>
+  <div class="intro-logo">yuthon</div>
   <div class="intro-line"></div>
   <div class="intro-sub">宇森游戏</div>
-  <button id="introAudioUnlock" class="intro-audio-unlock" style="display:none;">🔊 点击开启音效</button>
-  <div class="intro-skip">点击任意位置跳过</div>
 </div>
 <div class="app">
   <header class="topbar">
@@ -340,7 +322,7 @@ document.getElementById('enterGame').addEventListener('click', async ()=>{
 </script>
 <script src="assets/story-player.js"></script>
 <script>
-// 进游戏开场动画（yusen 科技感）：首次访问播放，约 5.2s，可点击跳过，本会话只播一次
+// 进游戏开场动画（yuthon 科技感）：首次访问播放，约 5.2s 后自动结束，本会话只播一次
 let _introAudioCtx = null;
 function getIntroAudioCtx() {
   try {
@@ -405,23 +387,6 @@ function playIntro(done) {
   el.classList.add('show');
   let soundMaster = null;
   try { soundMaster = playIntroSound(); } catch (e) { console.warn('intro音效异常', e); }
-  // 浏览器自动播放策略：无用户手势时 AudioContext 被挂起，音效静音 → 显示解锁按钮
-  const unlockBtn = document.getElementById('introAudioUnlock');
-  let needsUnlock = false;
-  try { const ctx = getIntroAudioCtx(); needsUnlock = !!ctx && ctx.state !== 'running'; } catch (e) {}
-  if (needsUnlock && unlockBtn) unlockBtn.style.display = '';
-  const unlockAudio = async () => {
-    try {
-      const ctx = getIntroAudioCtx();
-      if (ctx && ctx.state === 'suspended') await ctx.resume();
-      if (ctx && ctx.state === 'running') {
-        try { stopIntroSound(soundMaster); } catch (e) {}
-        try { soundMaster = playIntroSound(); } catch (e) {}
-      }
-    } catch (e) {}
-    if (unlockBtn) unlockBtn.style.display = 'none';
-  };
-  if (unlockBtn) unlockBtn.addEventListener('click', (e) => { e.stopPropagation(); unlockAudio(); });
   let finished = false;
   const finish = () => {
     if (finished) return; finished = true;
@@ -430,13 +395,10 @@ function playIntro(done) {
     el.classList.remove('show'); el.classList.add('hide');
     setTimeout(() => { el.remove(); done && done(); }, 480);
   };
-  const timer = setTimeout(finish, 5200);
-  const onSkip = () => { clearTimeout(timer); finish(); };
-  el.addEventListener('click', onSkip);
-  window.addEventListener('keydown', onSkip, { once: true });
+  setTimeout(finish, 5200);
 }
 
-// 首页首次访问：先播 yusen 开场动画，再播剧情漫画
+// 首页首次访问：先播 yuthon 开场动画，再播剧情漫画
 (function() {
   if (localStorage.getItem('seen_intro_part1')) return;
   const btn = document.getElementById('enterGame');
diff --git a/world.html b/world.html
index 2a98b87..23384a1 100644
--- a/world.html
+++ b/world.html
@@ -552,6 +552,143 @@ body { background: #0a0e17; overflow: hidden; font-family: 'Microsoft YaHei', sa
   opacity: 1; visibility: visible; pointer-events: auto;
 }
 
+/* ===== 首领挑战地图（独立覆盖层：六边形区域选择；z=150 低于微观世界 200，退出战场后自动露出） ===== */
+#bossMapView {
+  position: fixed; inset: 0; z-index: 150; display: none;
+  align-items: center; justify-content: center; overflow: hidden;
+  --bm-bg: url('assets/ui/boss_map_bg_b_final.png');
+}
+#bossMapView.active { display: flex; }
+#bossMapView .bm-bg {
+  position: absolute; inset: 0;
+  background: var(--bm-bg) center / cover no-repeat;
+  transform: scale(1.15);
+  animation: bmSeaDrift 30s ease-in-out infinite alternate;
+  will-change: transform;
+}
+/* 水面流光：缓慢漂移的柔光，营造活水感 */
+#bossMapView .bm-bg::before {
+  content: ''; position: absolute; inset: -12%;
+  background:
+    radial-gradient(58% 38% at 28% 34%, rgba(190,242,255,.20), rgba(190,242,255,0) 62%),
+    radial-gradient(50% 34% at 74% 62%, rgba(150,226,255,.15), rgba(150,226,255,0) 62%);
+  mix-blend-mode: screen;
+  filter: blur(8px);
+  animation: bmShimmer 17s ease-in-out infinite alternate;
+  will-change: transform, opacity;
+}
+#bossMapView .bm-bg::after {
+  content: ''; position: absolute; inset: 0;
+  background:
+    radial-gradient(ellipse at 50% 48%, rgba(3,12,22,0) 50%, rgba(3,12,22,.22) 80%, rgba(2,8,16,.52) 100%),
+    linear-gradient(180deg, rgba(3,12,22,.20), rgba(3,12,22,0) 32%, rgba(2,8,16,.22));
+}
+@keyframes bmSeaDrift {
+  0%   { transform: scale(1.15) translate3d(-1.3%, -0.8%, 0) rotate(-0.25deg); }
+  50%  { transform: scale(1.18) translate3d(0.6%, 0.4%, 0) rotate(0deg); }
+  100% { transform: scale(1.15) translate3d(1.4%, 1.0%, 0) rotate(0.25deg); }
+}
+@keyframes bmShimmer {
+  0%   { transform: translate3d(-4%, -3%, 0); opacity: .65; }
+  100% { transform: translate3d(5%, 4%, 0); opacity: 1; }
+}
+#bossMapView .bm-head {
+  position: absolute; top: 0; left: 0; right: 0; z-index: 3;
+  padding: 20px 26px; display: flex; align-items: center; gap: 16px;
+}
+#bossMapView .bm-back {
+  width: 44px; height: 44px; border-radius: 12px; cursor: pointer;
+  border: 1px solid rgba(255,214,150,.3); background: rgba(30,20,10,.55);
+  color: #ffd9a0; font-size: 20px; line-height: 1; backdrop-filter: blur(8px);
+  transition: background .2s, transform .2s;
+}
+#bossMapView .bm-back:hover { background: rgba(70,46,18,.8); transform: scale(1.06); }
+#bossMapView .bm-title h1 {
+  margin: 0; font-size: 24px; letter-spacing: .16em; color: #ffe6bd;
+  text-shadow: 0 2px 16px rgba(0,0,0,.8);
+}
+#bossMapView .bm-title p { margin: 3px 0 0; font-size: 11px; letter-spacing: .26em; color: rgba(255,214,160,.62); }
+#bossMapView .bm-stage { position: relative; width: 520px; height: 560px; z-index: 3; }
+/* —— 未开放区域：暗礁浮台（非六边形，柔和 3D 质感）—— */
+#bossMapView .bm-lock {
+  position: absolute; left: 50%; top: 50%; width: 148px; height: 104px;
+  margin: 0; padding: 0; border: 0; cursor: not-allowed;
+  transform: translate(-50%,-50%) translate(var(--dx,0px), var(--dy,0px));
+  border-radius: 48% 52% 50% 50% / 42% 44% 56% 58%;
+  background:
+    radial-gradient(ellipse at 50% 32%, rgba(76,92,120,.5), rgba(20,28,44,.72) 68%, rgba(10,14,24,.82) 100%);
+  box-shadow:
+    inset 0 10px 20px rgba(150,180,230,.14),
+    inset 0 -16px 24px rgba(0,0,0,.6),
+    0 16px 30px rgba(0,0,0,.5);
+  color: rgba(196,210,236,.5); font-size: 14px; font-weight: 700; letter-spacing: .22em;
+  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
+  opacity: .82; transition: opacity .25s, transform .25s;
+}
+#bossMapView .bm-lock:hover { opacity: .95; }
+#bossMapView .bm-lock small { font-size: 9px; font-weight: 600; letter-spacing: .2em; color: rgba(180,196,226,.4); }
+
+/* —— 可挑战区域：海上立体沙岛（点击进入）—— */
+#bossMapView .bm-region {
+  position: absolute; left: 50%; top: 50%; width: 340px; height: 232px;
+  margin: 0; padding: 0; border: 0; background: transparent; cursor: pointer;
+  transform: translate(-50%,-50%) translate(var(--dx,0px), var(--dy,0px));
+  transition: filter .3s ease;
+  filter: drop-shadow(0 0 14px rgba(255,178,84,.2));
+}
+/* 岛底水花环：让岛“坐”在水面上 */
+#bossMapView .bm-region-glow {
+  position: absolute; left: 50%; bottom: -7%; width: 86%; height: 27%;
+  transform: translateX(-50%); pointer-events: none;
+  background: radial-gradient(ellipse at 50% 50%, rgba(228,252,255,.62), rgba(140,214,240,.24) 46%, rgba(80,170,210,0) 76%);
+  filter: blur(8px);
+}
+/* 水线泡沫：岛与水面交界处的浪花 */
+#bossMapView .bm-region-foam {
+  position: absolute; left: 50%; bottom: -1.5%; width: 66%; height: 6.5%;
+  transform: translateX(-50%); pointer-events: none; border-radius: 50%;
+  background: radial-gradient(ellipse at 50% 50%, rgba(255,255,255,0) 30%, rgba(230,252,255,.42) 62%, rgba(230,252,255,0) 84%);
+  filter: blur(6px);
+}
+/* 水面倒影 */
+#bossMapView .bm-region-refl {
+  position: absolute; left: 0; top: 100%; width: 100%; height: 100%;
+  overflow: hidden; pointer-events: none;
+  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.5), rgba(0,0,0,0) 56%);
+  mask-image: linear-gradient(180deg, rgba(0,0,0,.5), rgba(0,0,0,0) 56%);
+}
+#bossMapView .bm-region-refl i {
+  display: block; width: 100%; height: 100%;
+  transform: scaleY(-1);
+  background: url('assets/ui/boss_region_quicksand_v2.png') center / contain no-repeat;
+  filter: blur(3px) saturate(.8) brightness(.85);
+}
+#bossMapView .bm-region-img {
+  position: relative; width: 100%; height: 100%; object-fit: contain; display: block;
+  pointer-events: none; user-select: none;
+  filter: drop-shadow(0 0 5px rgba(255,236,196,.38)) drop-shadow(0 12px 22px rgba(0,0,0,.45));
+}
+#bossMapView .bm-region:hover {
+  filter: drop-shadow(0 20px 34px rgba(0,0,0,.5)) drop-shadow(0 0 34px rgba(255,206,118,.85)) brightness(1.05);
+}
+#bossMapView .bm-region-cap {
+  position: absolute; left: 50%; bottom: -14px; transform: translateX(-50%);
+  display: flex; flex-direction: column; align-items: center; gap: 5px;
+  pointer-events: none; white-space: nowrap;
+}
+#bossMapView .bm-name { font-size: 20px; font-weight: 700; letter-spacing: .18em; color: #fff3de; text-shadow: 0 2px 14px rgba(0,0,0,.95); }
+#bossMapView .bm-sub { font-size: 10px; letter-spacing: .2em; color: rgba(255,232,196,.82); text-shadow: 0 1px 8px rgba(0,0,0,.95); }
+#bossMapView .bm-tag {
+  font-size: 10px; font-weight: 700; letter-spacing: .2em; padding: 3px 12px;
+  border-radius: 20px; background: rgba(255,152,42,.95); color: #2a1600;
+  box-shadow: 0 2px 12px rgba(0,0,0,.55), 0 0 16px rgba(255,160,50,.5);
+}
+@media (max-width: 640px) {
+  #bossMapView .bm-stage { transform: scale(.66); }
+  #bossMapView .bm-title h1 { font-size: 19px; }
+  #bossMapView .bm-head { padding: 14px 16px; gap: 12px; }
+}
+
 #microHeader {
   position: fixed; top: 0; left: 0; right: 0; height: 50px;
   display: flex; align-items: center; padding: 0 16px;
@@ -867,7 +1004,7 @@ body { background: #0a0e17; overflow: hidden; font-family: 'Microsoft YaHei', sa
 #loadingScreen .loadFill { height: 100%; width: 0%; background: linear-gradient(90deg, #4af, #a8e6cf); border-radius: 6px; transition: width 0.3s; }
 #loadingScreen .loadPct { font-size: 20px; color: #4af; font-variant-numeric: tabular-nums; letter-spacing: 1px; }
 
-/* 进游戏开场动画（yusen 科技感）—— 总时长约 5.2s */
+/* 进游戏开场动画（yuthon 科技感）—— 总时长约 5.2s */
 #introSplash {
   position: fixed; inset: 0; z-index: 600; overflow: hidden;
   display: flex; flex-direction: column; align-items: center; justify-content: center;
@@ -929,22 +1066,6 @@ body { background: #0a0e17; overflow: hidden; font-family: 'Microsoft YaHei', sa
   letter-spacing: .4em; text-indent: .4em; color: rgba(150,200,255,.55); opacity: 0;
 }
 #introSplash.show .intro-sub { animation: introFade 1.2s ease 2.6s forwards; }
-#introSplash .intro-skip {
-  position: absolute; bottom: 26px; z-index: 4; font-size: 12px; letter-spacing: .15em;
-  color: rgba(180,210,255,.4); opacity: 0;
-}
-#introSplash.show .intro-skip { animation: introFade 1s ease 3.6s forwards; }
-#introSplash .intro-audio-unlock {
-  position: absolute; bottom: 58px; z-index: 5; cursor: pointer;
-  padding: 9px 20px; border-radius: 999px; font-size: 13px; letter-spacing: .12em;
-  color: #eaf6ff; background: rgba(74,175,255,.12);
-  border: 1px solid rgba(74,175,255,.5); box-shadow: 0 0 18px rgba(74,175,255,.35);
-  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
-  opacity: 0; transition: opacity .4s ease, transform .2s ease;
-}
-#introSplash.show .intro-audio-unlock { opacity: 1; }
-#introSplash .intro-audio-unlock:hover { transform: scale(1.05); }
-#introSplash.hide .intro-audio-unlock { opacity: 0; }
 @keyframes introFade { to { opacity: 1; } }
 
 /* 单位详情弹窗 */
@@ -1399,15 +1520,13 @@ body { background: #0a0e17; overflow: hidden; font-family: 'Microsoft YaHei', sa
   </div>
 </div>
 
-<!-- 进游戏开场动画（yusen 科技感） -->
+<!-- 进游戏开场动画（yuthon 科技感） -->
 <div id="introSplash">
   <div class="intro-grid"></div>
   <div class="intro-sweep"></div>
-  <div class="intro-logo">yusen</div>
+  <div class="intro-logo">yuthon</div>
   <div class="intro-line"></div>
   <div class="intro-sub">宇森游戏</div>
-  <button id="introAudioUnlock" class="intro-audio-unlock" style="display:none;">🔊 点击开启音效</button>
-  <div class="intro-skip">点击任意位置跳过</div>
 </div>
 
 <!-- 主视图 -->
@@ -1541,6 +1660,10 @@ body { background: #0a0e17; overflow: hidden; font-family: 'Microsoft YaHei', sa
     <img src="assets/icons/website/website.png?v=2" alt="官网">
     <span class="top-icon-label">官网</span>
   </button>
+  <button class="top-icon" id="btnBoss" type="button" title="首领挑战">
+    <span style="font-size:24px;line-height:1;">👹</span>
+    <span class="top-icon-label">首领挑战</span>
+  </button>
   <button class="top-icon toolbar-toggle" id="btnToolbarToggle" type="button" title="展开/收起菜单">
     <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"/></svg>
   </button>
@@ -1620,6 +1743,37 @@ body { background: #0a0e17; overflow: hidden; font-family: 'Microsoft YaHei', sa
 </div>
 
 
+<!-- 首领挑战地图（独立覆盖层：六边形区域选择，点击进入对应战场） -->
+<div id="bossMapView">
+  <div class="bm-bg"></div>
+  <div class="bm-head">
+    <button class="bm-back" id="bossMapBack" type="button" title="返回世界">←</button>
+    <div class="bm-title">
+      <h1>首领挑战</h1>
+      <p>讨伐盘踞各界的强大首领</p>
+    </div>
+  </div>
+  <div class="bm-stage">
+    <button class="bm-lock" type="button" style="--dx:0px; --dy:-168px"><span>？ ？ ？</span><small>未开放</small></button>
+    <button class="bm-lock" type="button" style="--dx:-190px; --dy:-84px"><span>？ ？ ？</span><small>未开放</small></button>
+    <button class="bm-lock" type="button" style="--dx:190px; --dy:-84px"><span>？ ？ ？</span><small>未开放</small></button>
+    <button class="bm-region" id="bmHexQuicksand" type="button" style="--dx:0px; --dy:0px">
+      <span class="bm-region-glow"></span>
+      <span class="bm-region-refl"><i></i></span>
+      <img class="bm-region-img" src="assets/ui/boss_region_quicksand_v2.png" alt="流沙荒漠">
+      <span class="bm-region-foam"></span>
+      <span class="bm-region-cap">
+        <span class="bm-name">流沙荒漠</span>
+        <span class="bm-sub">首领未现身</span>
+        <span class="bm-tag">可挑战</span>
+      </span>
+    </button>
+    <button class="bm-lock" type="button" style="--dx:-190px; --dy:84px"><span>？ ？ ？</span><small>未开放</small></button>
+    <button class="bm-lock" type="button" style="--dx:190px; --dy:84px"><span>？ ？ ？</span><small>未开放</small></button>
+    <button class="bm-lock" type="button" style="--dx:0px; --dy:168px"><span>？ ？ ？</span><small>未开放</small></button>
+  </div>
+</div>
+
 <!-- 飞入过渡 -->
 <div id="flyInOverlay">
   <img class="flyBg" id="flyBg" alt="">
@@ -2437,6 +2591,7 @@ let forestBgImg = null; // 森林微观背景图
 let mountainBgImg = null; // 山地微观背景图
 let desertBgImg = null; // 荒漠微观背景图
 let snowBgImg = null;   // 雪地微观背景图
+let quicksandBgImg = null; // 首领挑战·流沙荒漠场景底图
 let waterBgImg = null;  // 水域微观背景图
 let _lastPaletteKey = '';                         // 调色板指纹：时间色调明显变化时才重建基础缓存
 const _cachedCam = { x: 0, y: 0, zoom: 1 };    // 快照对应的相机状态，交互期按相机增量平移/缩放 blit
@@ -4417,7 +4572,7 @@ function microTitleText(tile) {
 }
 
 // ============ 进入微观世界 ============
-function enterMicroWorld(tile) {
+function enterMicroWorld(tile, opts) {
   if (!tile) return;
   const overlay = document.getElementById('flyInOverlay');
   const microView = document.getElementById('microView');
@@ -4456,28 +4611,39 @@ function enterMicroWorld(tile) {
   microZoom = 1; microPanX = 0; microPanY = 0;
   microViewOpen = true;                // 暂停主世界重绘
   microView.classList.add('active');   // 入场动画（缩放+去模糊）在遮罩掩护下播放，揭幕时早已归位
-  document.getElementById('microTitle').textContent = microTitleText(tile);
-  document.getElementById('microSubtitle').textContent = `坐标(${tile.q}, ${tile.r}) · ${microState.units.length}位居民`;
+  if (opts && opts.boss) {
+    document.getElementById('microTitle').textContent = '👹 首领挑战 · 流沙荒漠';
+    document.getElementById('microSubtitle').textContent = '独立战场 · 拖拽放置你的队伍，讨伐盘踞此地的首领';
+  } else {
+    document.getElementById('microTitle').textContent = microTitleText(tile);
+    document.getElementById('microSubtitle').textContent = `坐标(${tile.q}, ${tile.r}) · ${microState.units.length}位居民`;
+  }
   applyMicroAccent(tile.terrain);
   updateSidebar();
   microLoadIcons();   // 进入微观视图即预加载建造贴图，避免已放置建筑先显示文字
   microLoadCatalog(); // 拉取 Odoo 后台建造目录（未登录时保留前端兜底常量），hover/弹窗即时生效
   microLoadGame();    // 拉取角色 / 生物 / 订单（Odoo 后端），覆盖单位状态
-  microLoadChests(tile.q, tile.r);   // 拉取本地块已生成的宝箱
-  microStartChestGen();              // 启动测试期 10s 生成定时器
+  if (!(opts && opts.boss)) {
+    microLoadChests(tile.q, tile.r);   // 拉取本地块已生成的宝箱
+    microStartChestGen();              // 启动测试期 10s 生成定时器
+  }
   fetchTasks();       // 拉取任务定义 + 角色进度（新手主线）
-  // 资源系统：登录时一次性结算离线产出并兜底回库，再启动在线自动进账
-  microSettle(true, true).then(() => microRefreshResources());
-  startResourceLoop();
+  // 资源系统：登录时一次性结算离线产出并兜底回库，再启动在线自动进账（首领场为独立战场，跳过）
+  if (!(opts && opts.boss)) {
+    microSettle(true, true).then(() => microRefreshResources());
+    startResourceLoop();
+  }
   // 初始化角色动画系统：先动态加载种族模板（后端单一事实来源），再预加载精灵图与角色
   if (typeof loadRaces === 'function') {
-    loadRaces().then(() => {
+    loadRaces().then(async () => {
       if (typeof preloadAllSheets === 'function') preloadAllSheets();
-      if (typeof loadMicroChars === 'function') loadMicroChars();  // 从后端拉取该用户放置的角色（刷新/重进不丢）
+      if (typeof loadMicroChars === 'function') await loadMicroChars();  // 从后端拉取该用户放置的角色（刷新/重进不丢）
+      if (opts && opts.boss && typeof ensureBossSpawn === 'function') ensureBossSpawn();  // 首领场：自动生成荒漠蝎 boss（仅一次）
     });
   } else {
     if (typeof preloadAllSheets === 'function') preloadAllSheets();
     if (typeof loadMicroChars === 'function') loadMicroChars();
+    if (opts && opts.boss && typeof ensureBossSpawn === 'function') ensureBossSpawn();
   }
   if (typeof updateCharPanel === 'function') updateCharPanel();
   // 注册角色障碍避让：随机游走 / 用户点击都被吸附到非建筑空地
@@ -4520,6 +4686,18 @@ function enterMicroWorld(tile) {
   }, MICRO_ENTER_HOLD);
 }
 
+// 首领挑战：复用微观沙盘渲染器（网格 + 放置 + 拖拽），背景固定为流沙荒漠底图。
+// 合成独立战场 tile（不参与真实地块宝箱/资源结算），渲染器与常规沙盘完全一致。
+function enterBossArena() {
+  const bossTile = {
+    q: -1, r: -1, terrain: 'desert', layer: 'earth',
+    name: '流沙荒漠', hasBuilding: false, units: [], bossBg: true
+  };
+  const bb = document.getElementById('backBtn');
+  if (bb) bb.textContent = '← 返回首领地图';
+  enterMicroWorld(bossTile, { boss: true });
+}
+
 // ============ 资源系统：库存拉取 / 结算 / 回收 ============
 function fmtNum(v) {
   v = Number(v) || 0;
@@ -5415,6 +5593,8 @@ function microHexDirOfVector(dx, dy) {
 // 朝某方向拖动 → 若该方向有相邻地块则切入它（像平移显微镜）；否则不切换（边缘即墙）
 function navigateMicro(dx, dy) {
   const t = microState.tile;
+  // 首领战场（bossBg）为独立场景：拖拽不切换到相邻地块，与其他沙盘完全隔离
+  if (t && t.bossBg) return false;
   const di = microHexDirOfVector(dx, dy);
   const [dq, dr] = MICRO_DIRS[di];
   const nb = getTile(t.q + dq, t.r + dr);
@@ -5507,7 +5687,8 @@ function buildMicroGridCache() {
     plain: grassBgImg, forest: forestBgImg, mountain: mountainBgImg,
     desert: desertBgImg, snow: snowBgImg, water: waterBgImg
   };
-  const bgImg = microBgMap[tile.terrain];
+  let bgImg = microBgMap[tile.terrain];
+  if (tile && tile.bossBg && quicksandBgImg && quicksandBgImg.naturalWidth > 0) bgImg = quicksandBgImg;
   if (bgImg && bgImg.naturalWidth > 0) {
     // 微观视图：直接用对应地形背景图铺满浮岛，去掉默认树/石/建筑等装饰
     const iw = bgImg.naturalWidth, ih = bgImg.naturalHeight;
@@ -7114,6 +7295,8 @@ window.wasdKeys = wasdKeys;
 
 function exitMicroWorld() {
   document.getElementById('microView').classList.remove('active');
+  const _bb = document.getElementById('backBtn');
+  if (_bb) _bb.textContent = '← 返回世界';   // 首领战场退出后复位按钮文案
   if (microAnimId) { cancelAnimationFrame(microAnimId); microAnimId = null; }
   if (typeof saveMicroCharsNow === 'function') saveMicroCharsNow();  // 退出前落库角色（删除/移动）
   if (microResourceTimer) { clearInterval(microResourceTimer); microResourceTimer = null; }
@@ -8160,6 +8343,7 @@ function init() {
   desertBgImg = preloadMicroBg('assets/backgrounds/desert_bg.png?v=20260803');
   snowBgImg = preloadMicroBg('assets/backgrounds/snow_bg.png?v=20260803');
   waterBgImg = preloadMicroBg('assets/backgrounds/water_bg.png?v=20260803');
+  quicksandBgImg = preloadMicroBg('assets/backgrounds/quicksand_bg.png?v=20260915g');
   // 注意：初始 clampCamera 不在本函数内调用——clampCamera 定义在后续 <script> 块中，
   // 跨 script 块的函数声明不会提升，若在此调用会抛 ReferenceError 导致加载屏永不关闭（页面"卡住"）。
   // 初始钳制改在 block1 末尾（clampCamera 定义之后）统一执行。
@@ -8192,7 +8376,7 @@ function init() {
   });
 }
 
-// 进游戏开场动画（yusen 科技感）：加载完成后覆盖播放，约 5.2s，可点击跳过，本会话只播一次
+// 进游戏开场动画（yuthon 科技感）：加载完成后覆盖播放，约 5.2s 后自动结束，本会话只播一次
 let _introAudioCtx = null;
 function getIntroAudioCtx() {
   try {
@@ -8257,23 +8441,6 @@ function playIntro(done) {
   el.classList.add('show');
   let soundMaster = null;
   try { soundMaster = playIntroSound(); } catch (e) { console.warn('intro音效异常', e); }
-  // 浏览器自动播放策略：无用户手势时 AudioContext 被挂起，音效静音 → 显示解锁按钮
-  const unlockBtn = document.getElementById('introAudioUnlock');
-  let needsUnlock = false;
-  try { const ctx = getIntroAudioCtx(); needsUnlock = !!ctx && ctx.state !== 'running'; } catch (e) {}
-  if (needsUnlock && unlockBtn) unlockBtn.style.display = '';
-  const unlockAudio = async () => {
-    try {
-      const ctx = getIntroAudioCtx();
-      if (ctx && ctx.state === 'suspended') await ctx.resume();
-      if (ctx && ctx.state === 'running') {
-        try { stopIntroSound(soundMaster); } catch (e) {}
-        try { soundMaster = playIntroSound(); } catch (e) {}
-      }
-    } catch (e) {}
-    if (unlockBtn) unlockBtn.style.display = 'none';
-  };
-  if (unlockBtn) unlockBtn.addEventListener('click', (e) => { e.stopPropagation(); unlockAudio(); });
   let finished = false;
   const finish = () => {
     if (finished) return; finished = true;
@@ -8282,13 +8449,10 @@ function playIntro(done) {
     el.classList.remove('show'); el.classList.add('hide');
     setTimeout(() => { el.remove(); done && done(); }, 480);
   };
-  const timer = setTimeout(finish, 5200);
-  const onSkip = () => { clearTimeout(timer); finish(); };
-  el.addEventListener('click', onSkip);
-  window.addEventListener('keydown', onSkip, { once: true });
+  setTimeout(finish, 5200);
 }
 
-// 首次进入剧情：在 yusen 开场动画之后播放，再进入登录/游戏
+// 首次进入剧情：在 yuthon 开场动画之后播放，再进入登录/游戏
 async function maybePlayIntroStory() {
   if (localStorage.getItem('seen_intro_part1')) return;
   try {
@@ -9031,6 +9195,20 @@ if (typeof fitWorld === 'function') fitWorld();
       if (btnAuction) btnAuction.addEventListener('click', () => {
         openAppModal('拍卖行', '<div style="text-align:center;padding:24px;color:#8899aa;font-size:13px;">拍卖行即将开放<br><br>玩家之间自由交易道具、材料与稀有素材。</div>');
       });
+      // 首领挑战：先进入「首领挑战地图」（独立覆盖层），点区域再进战场
+      const btnBoss = document.getElementById('btnBoss');
+      if (btnBoss) btnBoss.addEventListener('click', () => {
+        const bm = document.getElementById('bossMapView');
+        if (bm) bm.classList.add('active');
+      });
+      const bossMapBack = document.getElementById('bossMapBack');
+      if (bossMapBack) bossMapBack.addEventListener('click', () => {
+        const bm = document.getElementById('bossMapView');
+        if (bm) bm.classList.remove('active');
+      });
+      // 流沙荒漠区域：进入战场（首领地图保持 active，位于微观世界之下，退出战场后自动露出）
+      const bmHexQuicksand = document.getElementById('bmHexQuicksand');
+      if (bmHexQuicksand) bmHexQuicksand.addEventListener('click', () => enterBossArena());
 
       // 通用弹窗
       const appModal = document.getElementById('appModal');