diff --git a/controller/setup.go b/controller/setup.go
index e8797c7..cafc09d 100644
--- a/controller/setup.go
+++ b/controller/setup.go
@@ -244,7 +244,7 @@ func SetupSubmitHandler(w http.ResponseWriter, r *http.Request) {
 	_ = json.NewEncoder(w).Encode(map[string]any{
 		"ok":       true,
 		"message":  "installed",
-		"redirect": "/admin",
+		"redirect": "/dashboard", // v0.3.0: 管理入口由 /admin 迁至 /dashboard
 		"settings": len(settingsKV),
 		"voices":   inserted,
 	})
diff --git a/router/admin-login.html b/router/admin-login.html
index 0527368..eb54450 100644
--- a/router/admin-login.html
+++ b/router/admin-login.html
@@ -6,7 +6,7 @@
     <title>管理后台 · 登录</title>
     <script src="https://cdn.bootcdn.net/ajax/libs/vue/3.4.21/vue.global.prod.js"></script>
     <script src="https://cdn.bootcdn.net/ajax/libs/axios/1.6.7/axios.min.js"></script>
-    <link rel="stylesheet" href="/admin/admin.css">
+    <link rel="stylesheet" href="/dashboard/admin.css">
 </head>
 <body>
     <div id="app">
@@ -22,7 +22,7 @@
         </div>
     </div>
 
-    <script src="/admin/admin-shell.js"></script>
+    <script src="/dashboard/admin-shell.js"></script>
     <script>
     const { createApp, ref } = Vue;
     const { http, setKey, clearKey, getKey } = window.admin;
@@ -34,7 +34,7 @@
             // 已登录则直接跳 dashboard
             if (getKey()) {
                 http.get('/admin/overview').then(() => {
-                    location.href = '/admin';
+                    location.href = '/dashboard';
                 }).catch(() => { clearKey(); });
             }
 
@@ -42,7 +42,7 @@
                 loginErr.value = '';
                 try {
                     await window.admin.login(keyInput.value);
-                    location.href = '/admin';
+                    location.href = '/dashboard';
                 } catch (e) {
                     loginErr.value = '鉴权失败: ' + (e.response?.data?.error?.message || e.message);
                 }
diff --git a/router/admin-settings.html b/router/admin-settings.html
index 18ff160..e3e6b1b 100644
--- a/router/admin-settings.html
+++ b/router/admin-settings.html
@@ -6,7 +6,7 @@
     <title>火山 TTS · 系统设置</title>
     <script src="https://cdn.bootcdn.net/ajax/libs/vue/3.4.21/vue.global.prod.js"></script>
     <script src="https://cdn.bootcdn.net/ajax/libs/axios/1.6.7/axios.min.js"></script>
-    <link rel="stylesheet" href="/admin/admin.css">
+    <link rel="stylesheet" href="/dashboard/admin.css">
 </head>
 <body>
     <div id="app">
@@ -34,7 +34,7 @@
                         <div class="card-head">
                             <div>
                                 <div class="card-title">鉴权 Key</div>
-                                <div class="card-sub">客户端调用 <code>/v1/audio/speech</code> 与登录 /admin 共用</div>
+                                <div class="card-sub">客户端调用 <code>/v1/audio/speech</code>。管理后台登录改用 <code>admin_key</code>(未配置时回退用本 Key)</div>
                             </div>
                             <span class="pill pill-accent">敏感</span>
                         </div>
@@ -143,7 +143,7 @@
         </div>
     </div>
 
-    <script src="/admin/admin-shell.js"></script>
+    <script src="/dashboard/admin-shell.js"></script>
     <script>
     const { createApp, ref, computed, onMounted } = Vue;
     const { http, getKey, setKey, clearKey, toast, mountShell } = window.admin;
@@ -236,7 +236,7 @@
                     authKeyInput.value = '';
                     setTimeout(() => {
                         clearKey();
-                        location.href = '/admin/login';
+                        location.href = '/dashboard/login';
                     }, 200);
                     toast('ok', 'Auth Key 已更新,请用新 Key 重新登录');
                 } catch (e) {
@@ -246,7 +246,7 @@
             const resetSettingsForm = () => { loadSettings(); };
 
             onMounted(() => {
-                if (!getKey()) { location.href = '/admin/login'; return; }
+                if (!getKey()) { location.href = '/dashboard/login'; return; }
                 mountShell({
                     activeNav: 'settings',
                     overview: overview.value,
diff --git a/router/admin-shell.js b/router/admin-shell.js
index 648f46c..98d204e 100644
--- a/router/admin-shell.js
+++ b/router/admin-shell.js
@@ -112,21 +112,27 @@
     <nav class="nav">
         <div class="nav-group">
             <div class="nav-label">概览</div>
-            <a class="nav-item${activeNav === 'dashboard' ? ' active' : ''}" href="/admin">
+            <a class="nav-item${activeNav === 'dashboard' ? ' active' : ''}" href="/dashboard">
                 <span class="nav-icon">▦</span><span>仪表盘</span>
             </a>
         </div>
         <div class="nav-group">
             <div class="nav-label">管理</div>
-            <a class="nav-item${activeNav === 'voices' ? ' active' : ''}" href="/admin/voices">
+            <a class="nav-item${activeNav === 'voices' ? ' active' : ''}" href="/dashboard/voices">
                 <span class="nav-icon">♪</span><span>音色</span>
                 <span class="nav-badge">${voiceCount}</span>
             </a>
-            <a class="nav-item${activeNav === 'settings' ? ' active' : ''}" href="/admin/settings">
+            <a class="nav-item${activeNav === 'settings' ? ' active' : ''}" href="/dashboard/settings">
                 <span class="nav-icon">⚙</span><span>设置</span>
                 ${corsConfigured ? '' : '<span class="nav-dot" title="CORS 未配置"></span>'}
             </a>
         </div>
+        <div class="nav-group">
+            <div class="nav-label">观测</div>
+            <a class="nav-item${activeNav === 'status' ? ' active' : ''}" href="/dashboard/status">
+                <span class="nav-icon">♥</span><span>详细状态</span>
+            </a>
+        </div>
     </nav>
     <div class="sidebar-foot">
         <button class="btn-icon" id="btn-reload" title="刷新">↻ 刷新</button>
@@ -142,7 +148,7 @@
         if (btnLogout) btnLogout.addEventListener('click', () => {
             clearKey();
             if (typeof options.onLogout === 'function') options.onLogout();
-            else location.href = '/admin/login';
+            else location.href = '/dashboard/login';
         });
         return {};
     };
diff --git a/router/admin-voices.html b/router/admin-voices.html
index 3663181..9781f82 100644
--- a/router/admin-voices.html
+++ b/router/admin-voices.html
@@ -6,7 +6,7 @@
     <title>火山 TTS · 音色管理</title>
     <script src="https://cdn.bootcdn.net/ajax/libs/vue/3.4.21/vue.global.prod.js"></script>
     <script src="https://cdn.bootcdn.net/ajax/libs/axios/1.6.7/axios.min.js"></script>
-    <link rel="stylesheet" href="/admin/admin.css">
+    <link rel="stylesheet" href="/dashboard/admin.css">
 </head>
 <body>
     <div id="app">
@@ -159,7 +159,7 @@
         </teleport>
     </div>
 
-    <script src="/admin/admin-shell.js"></script>
+    <script src="/dashboard/admin-shell.js"></script>
     <script>
     const { createApp, ref, computed, onMounted } = Vue;
     const { http, getKey, toast, mountShell } = window.admin;
@@ -237,7 +237,7 @@
             };
 
             onMounted(() => {
-                if (!getKey()) { location.href = '/admin/login'; return; }
+                if (!getKey()) { location.href = '/dashboard/login'; return; }
                 mountShell({
                     activeNav: 'voices',
                     overview: overview.value,
diff --git a/router/admin.html b/router/admin.html
index f8c146b..64cfb60 100644
--- a/router/admin.html
+++ b/router/admin.html
@@ -6,7 +6,7 @@
     <title>火山 TTS · 仪表盘</title>
     <script src="https://cdn.bootcdn.net/ajax/libs/vue/3.4.21/vue.global.prod.js"></script>
     <script src="https://cdn.bootcdn.net/ajax/libs/axios/1.6.7/axios.min.js"></script>
-    <link rel="stylesheet" href="/admin/admin.css">
+    <link rel="stylesheet" href="/dashboard/admin.css">
 </head>
 <body>
     <div id="app">
@@ -77,7 +77,7 @@
         </div>
     </div>
 
-    <script src="/admin/admin-shell.js"></script>
+    <script src="/dashboard/admin-shell.js"></script>
     <script>
     const { createApp, ref, onMounted } = Vue;
     const { http, getKey, formatUptime, shortPath, formatBytes, formatStart, mountShell } = window.admin;
@@ -93,7 +93,7 @@
             };
 
             onMounted(() => {
-                if (!getKey()) { location.href = '/admin/login'; return; }
+                if (!getKey()) { location.href = '/dashboard/login'; return; }
                 mountShell({ activeNav: 'dashboard', overview: overview.value, voiceCount: overview.value.voice_count, onReload: loadOverview });
                 loadOverview();
             });
diff --git a/router/health.html b/router/health.html
index 3f31830..b65a406 100644
--- a/router/health.html
+++ b/router/health.html
@@ -6,6 +6,7 @@
     <title>TTS 服务监控</title>
     <script src="https://cdn.bootcdn.net/ajax/libs/vue/3.4.21/vue.global.prod.js"></script>
     <script src="https://cdn.bootcdn.net/ajax/libs/axios/1.6.7/axios.min.js"></script>
+    <link rel="stylesheet" href="/dashboard/admin.css">
     <style>
         :root {
             --bg: #0b0f1a;
@@ -148,6 +149,7 @@
                 </div>
             </div>
             <div class="row-flex">
+                <a class="btn" href="/dashboard" style="text-decoration:none;">← 返回控制台</a>
                 <span class="status-badge" :class="health.status === 'ok' ? 'ok' : 'error'">
                     <span class="status-dot" :class="{ live: health.status === 'ok' }"></span>
                     {{ health.status === 'ok' ? '运行中' : (health.status || '加载中') }}
@@ -377,8 +379,11 @@
         </div>
     </div>
 
+    <script src="/dashboard/admin-shell.js"></script>
     <script>
     const { createApp, ref, computed, onMounted } = Vue;
+    // v0.3.0:/health 与 /metrics 已收口到鉴权接口,统一走带凭证头的 /api/admin/*
+    const { http, getKey } = window.admin;
 
     function parseProm(text) {
         const out = {};
@@ -597,16 +602,16 @@
 
             const fetchHealth = async () => {
                 try {
-                    const r = await axios.get("/health");
+                    const r = await http.get("/admin/health");
                     health.value = r.data;
                 } catch (e) {
-                    error.value = "无法获取健康状态: " + (e.message || "未知错误");
+                    error.value = "无法获取健康状态: " + (e.response?.data?.error?.message || e.message || "未知错误");
                 }
             };
 
             const fetchMetrics = async () => {
                 try {
-                    const r = await axios.get("/metrics");
+                    const r = await http.get("/admin/metrics");
                     metrics.value = parseProm(r.data);
                 } catch (e) {
                     // 不覆盖 error,让 health 错误更显眼
@@ -650,6 +655,8 @@
             };
 
             onMounted(() => {
+                // v0.3.0:本页已收口到管理鉴权,未登录先回登录页
+                if (!getKey()) { location.href = '/dashboard/login'; return; }
                 refresh();
                 setInterval(refresh, 10000);
             });
diff --git a/router/setup.html b/router/setup.html
index 753a8b5..2bc736a 100644
--- a/router/setup.html
+++ b/router/setup.html
@@ -202,7 +202,7 @@
             <div class="field">
                 <label>OpenAI 鉴权 Key <span class="req">*</span></label>
                 <input type="password" v-model="form.auth_key" placeholder="自定,例如 my-secret-key-2024" autocomplete="off">
-                <div class="hint">客户端用这个 Key 调 <code>/v1/audio/speech</code>,也是登录 <code>/admin</code> 的密码。装完可在 <code>/admin → 设置</code> 改。</div>
+                <div class="hint">客户端用这个 Key 调 <code>/v1/audio/speech</code>,也是登录 <code>/dashboard</code> 的密码。装完可在 <code>/dashboard → 设置</code> 改(可另配独立 <code>admin_key</code> 用于后台登录,避免与业务 Key 共用)。</div>
             </div>
             <div class="field">
                 <label>火山 TTS API Key <span class="req">*</span></label>
@@ -216,7 +216,7 @@
             <div class="card-head">
                 <div>
                     <div class="card-title">默认路由与格式</div>
-                    <div class="card-sub">未传 voice/format 时使用。装完可在 <code>/admin → 设置</code> 改。</div>
+                    <div class="card-sub">未传 voice/format 时使用。装完可在 <code>/dashboard → 设置</code> 改。</div>
                 </div>
                 <span class="step-badge">第 2 步</span>
             </div>
@@ -261,7 +261,7 @@
             <div class="card-head">
                 <div>
                     <div class="card-title">音色列表 <span style="font-weight: 400; color: var(--text-dim); font-size: 12px;">(至少 1 条)</span></div>
-                    <div class="card-sub">填入火山 TTS 音色 ID(S_ 开头的为复刻音色)。可后续在 /admin 中增删。</div>
+                    <div class="card-sub">填入火山 TTS 音色 ID(S_ 开头的为复刻音色)。可后续在 /dashboard 中增删。</div>
                 </div>
                 <span class="step-badge">第 3 步</span>
             </div>
@@ -322,7 +322,7 @@
         <!-- Nav -->
         <div class="actions">
             <button class="btn" @click="prev" :disabled="step===1 || submitting">← 上一步</button>
-            <div class="hint-text">提交后立即进入正常模式;后续管理请访问 <code>/admin</code>。</div>
+            <div class="hint-text">提交后立即进入正常模式;后续管理请访问 <code>/dashboard</code>。</div>
             <div style="display: flex; gap: 8px;">
                 <button v-if="step < 4" class="btn btn-primary" @click="next">下一步 →</button>
                 <button v-else class="btn btn-primary" @click="submit" :disabled="submitting">
@@ -412,7 +412,7 @@
                         },
                         voices: form.value.voices,
                     });
-                    window.location.href = r.data.redirect || '/admin';
+                    window.location.href = r.data.redirect || '/dashboard';
                 } catch (e) {
                     const msg = e.response?.data?.error?.message || e.message;
                     errorMsg.value = '安装失败: ' + msg;