diff --git a/apps/web/src/app/[locale]/authorizations/page.tsx b/apps/web/src/app/[locale]/authorizations/page.tsx
new file mode 100644
index 00000000..8b1ec701
--- /dev/null
+++ b/apps/web/src/app/[locale]/authorizations/page.tsx
@@ -0,0 +1,29 @@
+'use client'
+
+/**
+ * Authorizations Page - 授權中心
+ * ==============================
+ * Phase 7.0: 防禦性路由佔位
+ *
+ * Nothing.tech 空態設計:
+ * - 畫面正中央極簡文字
+ * - 等寬字體 + 淺灰色
+ */
+
+import { AppLayout } from '@/components/layout'
+
+export default function AuthorizationsPage({
+  params,
+}: {
+  params: { locale: string }
+}) {
+  return (
+    <AppLayout locale={params.locale}>
+      <div className="flex items-center justify-center min-h-[60vh]">
+        <p className="font-mono text-sm text-neutral-400 tracking-wider">
+          [ 授權中心建置中 / AUTHORIZATIONS_MODULE_UNDER_CONSTRUCTION ]
+        </p>
+      </div>
+    </AppLayout>
+  )
+}
diff --git a/apps/web/src/app/[locale]/knowledge-base/page.tsx b/apps/web/src/app/[locale]/knowledge-base/page.tsx
new file mode 100644
index 00000000..ceef3747
--- /dev/null
+++ b/apps/web/src/app/[locale]/knowledge-base/page.tsx
@@ -0,0 +1,29 @@
+'use client'
+
+/**
+ * Knowledge Base Page - 知識殿堂
+ * ==============================
+ * Phase 7.0: 防禦性路由佔位
+ *
+ * Nothing.tech 空態設計:
+ * - 畫面正中央極簡文字
+ * - 等寬字體 + 淺灰色
+ */
+
+import { AppLayout } from '@/components/layout'
+
+export default function KnowledgeBasePage({
+  params,
+}: {
+  params: { locale: string }
+}) {
+  return (
+    <AppLayout locale={params.locale}>
+      <div className="flex items-center justify-center min-h-[60vh]">
+        <p className="font-mono text-sm text-neutral-400 tracking-wider">
+          [ 知識殿堂建置中 / KNOWLEDGE_BASE_MODULE_UNDER_CONSTRUCTION ]
+        </p>
+      </div>
+    </AppLayout>
+  )
+}
diff --git a/apps/web/src/app/[locale]/settings/page.tsx b/apps/web/src/app/[locale]/settings/page.tsx
new file mode 100644
index 00000000..72b36f18
--- /dev/null
+++ b/apps/web/src/app/[locale]/settings/page.tsx
@@ -0,0 +1,29 @@
+'use client'
+
+/**
+ * Settings Page - 系統設定
+ * ========================
+ * Phase 7.0: 防禦性路由佔位
+ *
+ * Nothing.tech 空態設計:
+ * - 畫面正中央極簡文字
+ * - 等寬字體 + 淺灰色
+ */
+
+import { AppLayout } from '@/components/layout'
+
+export default function SettingsPage({
+  params,
+}: {
+  params: { locale: string }
+}) {
+  return (
+    <AppLayout locale={params.locale}>
+      <div className="flex items-center justify-center min-h-[60vh]">
+        <p className="font-mono text-sm text-neutral-400 tracking-wider">
+          [ 系統設定建置中 / SETTINGS_MODULE_UNDER_CONSTRUCTION ]
+        </p>
+      </div>
+    </AppLayout>
+  )
+}
diff --git a/apps/web/src/components/layout/sidebar.tsx b/apps/web/src/components/layout/sidebar.tsx
index 7cdd39fe..5e544c4e 100644
--- a/apps/web/src/components/layout/sidebar.tsx
+++ b/apps/web/src/components/layout/sidebar.tsx
@@ -1,24 +1,26 @@
 'use client'
 
 /**
- * Sidebar - 高透光玻璃側邊欄
- * ==========================
- * CPO-102: Nothing.tech 明亮工業風側邊導航
- * Phase 2.5: lucide-react 純代碼視覺 (符合第七章憲法)
+ * Sidebar - Phase 7.0 極簡五柱導航
+ * =================================
+ * Nothing.tech 視覺憲法:
+ * - 純白背景 (bg-white)
+ * - 極細右邊框 (border-r-[0.5px] border-neutral-200)
+ * - 無陰影
+ * - 單色圖示
  *
- * Features:
- * - backdrop-blur 毛玻璃效果
- * - 固定寬度 (w-64)
- * - 折疊/展開動畫 - 機械爪開合意象
- * - i18n 導航標籤
- * - 當前路由高亮
- * - lucide-react 圖示 (無實體圖片依賴)
+ * 5 大核心樞紐:
+ * 1. 全局戰情室 (/)
+ * 2. 授權中心 (/authorizations) - 含動態徽章
+ * 3. 行動日誌 (/action-logs)
+ * 4. 知識殿堂 (/knowledge-base)
+ * 5. 系統設定 (/settings)
  */
 
-import { useCallback } from 'react'
+import { useEffect, useState } from 'react'
 import { useTranslations } from 'next-intl'
 import { usePathname } from 'next/navigation'
-import { StatusOrb } from '@/components/ui/status-orb'
+import Link from 'next/link'
 import { cn } from '@/lib/utils'
 import {
   LayoutDashboard,
@@ -26,12 +28,10 @@ import {
   Zap,
   BookOpen,
   Settings,
-  Bot,
-  Eye,
   ChevronLeft,
   ChevronRight,
-  Sparkles,
 } from 'lucide-react'
+import { apiClient } from '@/lib/api-client'
 
 // =============================================================================
 // Types
@@ -44,22 +44,23 @@ interface SidebarProps {
   className?: string
 }
 
-// =============================================================================
-// Navigation Items (using lucide-react icons)
-// =============================================================================
-
 type NavItemConfig = {
   id: string
   href: string
   labelKey: string
   Icon: typeof LayoutDashboard
+  badge?: boolean // 是否顯示動態徽章
 }
 
+// =============================================================================
+// Phase 7.0: 5 大核心樞紐
+// =============================================================================
+
 const NAV_ITEMS: NavItemConfig[] = [
-  { id: 'dashboard', href: '/demo', labelKey: 'dashboard', Icon: LayoutDashboard },
-  { id: 'approvals', href: '/approvals', labelKey: 'approvals', Icon: ShieldCheck },
-  { id: 'actions', href: '/action-logs', labelKey: 'actions', Icon: Zap },
-  { id: 'knowledge', href: '/knowledge', labelKey: 'knowledge', Icon: BookOpen },
+  { id: 'warroom', href: '/', labelKey: 'dashboard', Icon: LayoutDashboard },
+  { id: 'authorizations', href: '/authorizations', labelKey: 'approvals', Icon: ShieldCheck, badge: true },
+  { id: 'action-logs', href: '/action-logs', labelKey: 'actions', Icon: Zap },
+  { id: 'knowledge-base', href: '/knowledge-base', labelKey: 'knowledge', Icon: BookOpen },
   { id: 'settings', href: '/settings', labelKey: 'settings', Icon: Settings },
 ]
 
@@ -75,11 +76,31 @@ export function Sidebar({
 }: SidebarProps) {
   const t = useTranslations('nav')
   const tBrand = useTranslations('brand')
-  const tClawbot = useTranslations('openclaw')
   const pathname = usePathname()
+  const [pendingCount, setPendingCount] = useState(0)
+
+  // 載入待簽核數量 (動態徽章)
+  useEffect(() => {
+    const fetchPendingCount = async () => {
+      try {
+        const data = await apiClient.getPendingApprovals()
+        setPendingCount(data.count || 0)
+      } catch {
+        setPendingCount(0)
+      }
+    }
+
+    fetchPendingCount()
+    // 每 30 秒刷新
+    const interval = setInterval(fetchPendingCount, 30000)
+    return () => clearInterval(interval)
+  }, [])
 
   const isActive = (href: string) => {
-    const fullHref = `/${locale}${href}`
+    const fullHref = `/${locale}${href === '/' ? '' : href}`
+    if (href === '/') {
+      return pathname === `/${locale}` || pathname === `/${locale}/`
+    }
     return pathname === fullHref || pathname.startsWith(fullHref + '/')
   }
 
@@ -88,150 +109,111 @@ export function Sidebar({
       className={cn(
         'fixed left-0 top-0 h-screen z-40',
         'flex flex-col',
-        // 玻璃效果
-        'bg-white/70 backdrop-blur-[20px]',
-        'border-r border-black/[0.06]',
+        // Phase 7.0: 純白極簡
+        'bg-white',
+        'border-r-[0.5px] border-neutral-200',
         // 寬度動畫
         'transition-all duration-300 ease-out',
-        collapsed ? 'w-16' : 'w-64',
+        collapsed ? 'w-16' : 'w-56',
         className
       )}
     >
-      {/* Logo - lucide-react + CSS Typography (第七章規範) */}
+      {/* Logo 區 - 極簡化 */}
       <div className={cn(
-        'flex items-center border-b border-black/[0.04]',
+        'flex items-center border-b-[0.5px] border-neutral-200',
         'transition-all duration-300',
-        collapsed ? 'h-20 justify-center px-3' : 'h-24 px-6'
+        collapsed ? 'h-16 justify-center px-2' : 'h-16 px-4'
       )}>
-        <div className={cn(
-          'flex items-center gap-3',
-          collapsed ? 'flex-col' : ''
-        )}>
-          {/* Bot Icon + 呼吸燈效果 */}
-          <div className="relative">
-            <div className={cn(
-              'w-10 h-10 rounded-xl flex items-center justify-center',
-              'bg-gradient-to-br from-claw-blue/20 to-claw-blue/10',
-              'border border-claw-blue/30',
-              'transition-all duration-300'
-            )}>
-              <Eye className="w-5 h-5 text-claw-blue" />
-            </div>
-            {/* Breathing indicator */}
-            <div className="absolute -bottom-0.5 -right-0.5 w-2.5 h-2.5">
-              <span className="animate-ping absolute inline-flex h-full w-full rounded-full bg-claw-blue opacity-75" />
-              <span className="relative inline-flex rounded-full h-2.5 w-2.5 bg-claw-blue" />
-            </div>
-          </div>
-
-          {/* 品牌字體排版 - i18n 規範 */}
-          {!collapsed && (
-            <div className="flex flex-col">
-              <span className="text-xl font-black tracking-widest text-nothing-black uppercase font-mono">
-                {tBrand('name')}
-              </span>
-              <span className="text-[9px] text-nothing-gray-500 tracking-widest font-mono font-medium uppercase">
-                {tBrand('version')} | {tBrand('tagline')}
-              </span>
-            </div>
-          )}
-        </div>
+        {collapsed ? (
+          <span className="font-mono text-lg font-bold text-neutral-900 tracking-tighter">
+            A
+          </span>
+        ) : (
+          <span className="font-mono text-sm font-bold text-neutral-900 tracking-widest uppercase">
+            {tBrand('name')}
+          </span>
+        )}
       </div>
 
-      {/* Navigation - lucide-react Icons */}
-      <nav className="flex-1 py-6 overflow-y-auto">
-        <ul className="space-y-1.5 px-3">
+      {/* 導航列表 - 5 大核心樞紐 */}
+      <nav className="flex-1 py-4 overflow-y-auto">
+        <ul className="space-y-0.5 px-2">
           {NAV_ITEMS.map((item) => {
             const active = isActive(item.href)
             return (
               <li key={item.id}>
-                <a
-                  href={`/${locale}${item.href}`}
+                <Link
+                  href={`/${locale}${item.href === '/' ? '' : item.href}`}
                   className={cn(
-                    'flex items-center gap-3.5 px-3.5 py-3 rounded-xl',
-                    'transition-all duration-200',
-                    'group relative',
+                    'flex items-center gap-3 px-3 py-2.5 rounded-sm',
+                    'transition-all duration-150',
+                    'relative',
+                    // Phase 7.0 視覺規範
                     active
-                      ? 'bg-nothing-black text-white shadow-lg shadow-black/20'
-                      : 'text-nothing-gray-600 hover:bg-nothing-gray-100/80 hover:text-nothing-black',
+                      ? 'font-bold text-black bg-neutral-100'
+                      : 'text-neutral-500 hover:bg-neutral-50 hover:text-black',
                     collapsed && 'justify-center px-2'
                   )}
                 >
-                  {/* Active indicator - 左側條紋 */}
-                  {active && !collapsed && (
-                    <span className="absolute left-0 top-1/2 -translate-y-1/2 w-1 h-6 bg-white/30 rounded-r-full" />
-                  )}
                   <item.Icon className={cn(
-                    'w-5 h-5 flex-shrink-0 transition-all duration-200',
-                    active ? 'opacity-100' : 'opacity-60 group-hover:opacity-100',
-                    'group-hover:scale-105'
+                    'w-[18px] h-[18px] flex-shrink-0',
+                    active ? 'text-black' : 'text-neutral-400'
                   )} />
+
                   {!collapsed && (
-                    <span className="font-medium text-[13px] tracking-wide truncate">
+                    <span className="text-[13px] tracking-wide truncate">
                       {t(item.labelKey)}
                     </span>
                   )}
-                </a>
+
+                  {/* 動態徽章 - 授權中心 */}
+                  {item.badge && pendingCount > 0 && (
+                    <span className={cn(
+                      'flex items-center justify-center',
+                      'min-w-[18px] h-[18px] px-1',
+                      'text-[10px] font-mono font-bold',
+                      'bg-neutral-900 text-white rounded-sm',
+                      collapsed ? 'absolute top-1 right-1' : 'ml-auto'
+                    )}>
+                      {pendingCount > 99 ? '99+' : pendingCount}
+                    </span>
+                  )}
+                </Link>
               </li>
             )
           })}
         </ul>
       </nav>
 
-      {/* OpenClaw Status - lucide-react Bot Icon */}
+      {/* 底部區域 - 極簡版本號 */}
       <div className={cn(
-        'border-t border-black/[0.04] p-5',
-        collapsed ? 'flex justify-center' : ''
+        'border-t-[0.5px] border-neutral-200 py-3',
+        collapsed ? 'px-2 text-center' : 'px-4'
       )}>
-        <div className={cn(
-          'flex items-center',
-          collapsed ? 'flex-col gap-2' : 'gap-3.5'
-        )}>
-          {/* Bot Icon with glow */}
-          <div className="relative">
-            <div className={cn(
-              'w-10 h-10 rounded-xl flex items-center justify-center',
-              'bg-gradient-to-br from-status-thinking/20 to-status-thinking/10',
-              'border border-status-thinking/30'
-            )}>
-              <Bot className="w-5 h-5 text-status-thinking" />
-            </div>
-            {/* Sparkle effect */}
-            <Sparkles className="absolute -top-1 -right-1 w-3 h-3 text-status-thinking animate-pulse" />
-          </div>
-          {!collapsed && (
-            <div className="flex flex-col gap-0.5">
-              <span className="text-sm font-bold text-nothing-black tracking-tight">
-                {tClawbot('name')}
-              </span>
-              <span className="text-[9px] text-status-thinking font-mono uppercase tracking-widest">
-                {tClawbot('monitoring')}
-              </span>
-            </div>
-          )}
-        </div>
+        {!collapsed && (
+          <span className="text-[10px] font-mono text-neutral-300 uppercase tracking-widest">
+            v1.0.0
+          </span>
+        )}
       </div>
 
-      {/* Collapse Toggle - lucide-react Chevron */}
+      {/* 折疊按鈕 */}
       <button
         onClick={onToggle}
         className={cn(
-          'absolute -right-4 top-24',
-          'w-8 h-8 rounded-full',
-          'bg-white border-2 border-nothing-gray-200/80',
-          'shadow-md shadow-black/5',
+          'absolute -right-3 top-20',
+          'w-6 h-6 rounded-full',
+          'bg-white border-[0.5px] border-neutral-200',
           'flex items-center justify-center',
-          'hover:bg-nothing-gray-50 hover:border-nothing-gray-300',
-          'hover:shadow-lg hover:shadow-black/10',
-          'active:scale-95',
-          'transition-all duration-200'
+          'hover:bg-neutral-50',
+          'transition-all duration-150'
         )}
         aria-label={collapsed ? 'Expand sidebar' : 'Collapse sidebar'}
       >
         {collapsed ? (
-          <ChevronRight className="w-4 h-4 text-nothing-gray-600" />
+          <ChevronRight className="w-3 h-3 text-neutral-400" />
         ) : (
-          <ChevronLeft className="w-4 h-4 text-nothing-gray-600" />
+          <ChevronLeft className="w-3 h-3 text-neutral-400" />
         )}
       </button>
     </aside>