diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index f3b9e6b..f883221 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -10,6 +10,7 @@ import { Tokens } from './pages/Tokens'
 import { Pricing } from './pages/Pricing'
 import { ApiTest } from './pages/ApiTest'
 import { Database } from './pages/Database'
+import { NotFound } from './pages/NotFound'
 
 const queryClient = new QueryClient({
   defaultOptions: {
@@ -80,6 +81,7 @@ function App() {
                 </ProtectedRoute>
               }
             />
+            <Route path="*" element={<NotFound />} />
           </Routes>
         </AppLayout>
         <Toaster />
diff --git a/frontend/src/components/layout/AppLayout.tsx b/frontend/src/components/layout/AppLayout.tsx
index 1e0dd16..146918f 100644
--- a/frontend/src/components/layout/AppLayout.tsx
+++ b/frontend/src/components/layout/AppLayout.tsx
@@ -14,7 +14,7 @@ import { Button } from '@/components/ui/button'
 import { useAuthStore } from '@/store/auth'
 import { useToast } from '@/components/ui/use-toast'
 import { Alert, AlertDescription } from '@/components/ui/alert'
-import { Menu, Sparkles } from 'lucide-react'
+import { Menu, Zap } from 'lucide-react'
 
 interface AppLayoutProps {
   children: ReactNode
@@ -56,23 +56,24 @@ export function AppLayout({ children }: AppLayoutProps) {
       />
 
       <div className="flex min-w-0 flex-1 flex-col">
-        <header className="flex items-center justify-between border-b bg-card/80 backdrop-blur-sm px-4 py-3 lg:hidden sticky top-0 z-30">
+        <header className="flex items-center justify-between border-b bg-card/80 glass px-4 py-2.5 lg:hidden sticky top-0 z-30">
           <Button
             type="button"
             variant="ghost"
             size="icon"
+            className="h-9 w-9"
             onClick={() => setIsMobileNavOpen(true)}
             aria-label="打开侧边栏"
           >
-            <Menu className="h-5 w-5" />
+            <Menu className="h-4 w-4" />
           </Button>
-          <div className="flex items-center gap-2.5">
-            <div className="w-7 h-7 rounded-lg bg-gradient-to-br from-primary to-primary/60 flex items-center justify-center">
-              <Sparkles className="h-4 w-4 text-white" />
+          <div className="flex items-center gap-2">
+            <div className="w-7 h-7 rounded-lg bg-gradient-to-br from-primary to-primary/70 flex items-center justify-center">
+              <Zap className="h-3.5 w-3.5 text-white" />
             </div>
-            <span className="font-semibold tracking-tight">Awsl One API</span>
+            <span className="font-semibold text-sm tracking-tight">Awsl One API</span>
           </div>
-          <div className="h-10 w-10" />
+          <div className="h-9 w-9" />
         </header>
 
         <main className="flex-1 overflow-y-auto bg-background">
diff --git a/frontend/src/components/layout/Sidebar.tsx b/frontend/src/components/layout/Sidebar.tsx
index 7294d46..98ff960 100644
--- a/frontend/src/components/layout/Sidebar.tsx
+++ b/frontend/src/components/layout/Sidebar.tsx
@@ -28,40 +28,12 @@ interface NavItem {
 }
 
 const navItems: NavItem[] = [
-  {
-    title: '仪表盘',
-    href: '/',
-    icon: LayoutDashboard,
-  },
-  {
-    title: 'API 测试',
-    href: '/api-test',
-    icon: TestTube2,
-  },
-  {
-    title: '频道管理',
-    href: '/channels',
-    icon: LinkIcon,
-    adminOnly: true,
-  },
-  {
-    title: '令牌管理',
-    href: '/tokens',
-    icon: Key,
-    adminOnly: true,
-  },
-  {
-    title: '定价管理',
-    href: '/pricing',
-    icon: DollarSign,
-    adminOnly: true,
-  },
-  {
-    title: '数据库',
-    href: '/database',
-    icon: Database,
-    adminOnly: true,
-  },
+  { title: '仪表盘', href: '/', icon: LayoutDashboard },
+  { title: 'API 测试', href: '/api-test', icon: TestTube2 },
+  { title: '频道管理', href: '/channels', icon: LinkIcon, adminOnly: true },
+  { title: '令牌管理', href: '/tokens', icon: Key, adminOnly: true },
+  { title: '定价管理', href: '/pricing', icon: DollarSign, adminOnly: true },
+  { title: '数据库', href: '/database', icon: Database, adminOnly: true },
 ]
 
 interface SidebarProps {
@@ -125,16 +97,16 @@ export function Sidebar({
         onClick={() => onNavigate?.()}
         title={collapsed ? item.title : undefined}
         className={cn(
-          'group relative flex items-center gap-3 px-3 py-2.5 rounded-xl text-sm font-medium transition-all duration-200',
+          'group relative flex items-center gap-3 px-3 py-2 rounded-lg text-[13px] font-medium transition-all duration-150',
           collapsed && 'justify-center px-0 w-10 h-10 mx-auto',
           isActive
-            ? 'bg-primary text-primary-foreground shadow-md'
-            : 'text-muted-foreground hover:text-foreground hover:bg-muted'
+            ? 'bg-primary text-primary-foreground shadow-sm shadow-primary/20'
+            : 'text-muted-foreground hover:text-foreground hover:bg-muted/80'
         )}
       >
         <item.icon className={cn(
-          "h-[18px] w-[18px] flex-shrink-0",
-          !isActive && "group-hover:scale-110 transition-transform duration-200"
+          "h-[17px] w-[17px] flex-shrink-0",
+          !isActive && "group-hover:scale-105 transition-transform duration-150"
         )} />
         {!collapsed && <span>{item.title}</span>}
       </Link>
@@ -144,37 +116,35 @@ export function Sidebar({
   return (
     <aside
       className={cn(
-        "bg-card border-r flex flex-col h-full transition-all duration-300",
-        collapsed ? "w-[72px]" : "w-64",
+        "bg-card border-r flex flex-col h-full transition-all duration-300 ease-out",
+        collapsed ? "w-[68px]" : "w-60",
         className
       )}
     >
       {/* Header */}
       <div className={cn(
-        "h-16 flex items-center border-b px-4",
+        "h-14 flex items-center border-b px-4",
         collapsed ? "justify-center px-0" : "justify-between"
       )}>
         {collapsed ? (
-          <div className="flex flex-col items-center gap-1">
-            <div className="w-10 h-10 rounded-xl bg-gradient-to-br from-primary to-primary/70 flex items-center justify-center">
-              <Zap className="h-5 w-5 text-white" />
-            </div>
+          <div className="w-9 h-9 rounded-lg bg-gradient-to-br from-primary to-primary/70 flex items-center justify-center">
+            <Zap className="h-4 w-4 text-white" />
           </div>
         ) : (
           <>
-            <div className="flex items-center gap-3">
-              <div className="w-10 h-10 rounded-xl bg-gradient-to-br from-primary to-primary/70 flex items-center justify-center shadow-lg shadow-primary/20">
-                <Zap className="h-5 w-5 text-white" />
+            <div className="flex items-center gap-2.5">
+              <div className="w-9 h-9 rounded-lg bg-gradient-to-br from-primary to-primary/70 flex items-center justify-center shadow-md shadow-primary/15">
+                <Zap className="h-4 w-4 text-white" />
               </div>
               <div className="flex flex-col">
-                <span className="font-semibold text-[15px] tracking-tight">Awsl One API</span>
-                <span className="text-[11px] text-muted-foreground">统一 AI 接口网关</span>
+                <span className="font-semibold text-[14px] tracking-tight leading-tight">Awsl One API</span>
+                <span className="text-[10px] text-muted-foreground leading-tight">AI Gateway</span>
               </div>
             </div>
             {onClose && (
               <button
                 type="button"
-                className="p-2 rounded-lg text-muted-foreground hover:text-foreground hover:bg-muted transition-colors lg:hidden"
+                className="p-1.5 rounded-md text-muted-foreground hover:text-foreground hover:bg-muted transition-colors lg:hidden"
                 onClick={onClose}
               >
                 <X className="h-4 w-4" />
@@ -184,23 +154,23 @@ export function Sidebar({
         )}
       </div>
 
-      {/* Collapse Toggle - PC Only */}
+      {/* Collapse Toggle */}
       {showCollapseToggle && (
-        <div className={cn("px-3 py-2 hidden lg:flex", collapsed && "px-0 justify-center")}>
+        <div className={cn("px-3 py-1.5 hidden lg:flex", collapsed && "px-0 justify-center")}>
           <button
             type="button"
             onClick={onToggleCollapse}
             className={cn(
-              "flex items-center gap-2 px-3 py-2 rounded-lg text-xs font-medium text-muted-foreground hover:text-foreground hover:bg-muted transition-colors",
-              collapsed ? "w-10 h-10 p-0 justify-center" : "w-full"
+              "flex items-center gap-2 px-2.5 py-1.5 rounded-md text-[11px] font-medium text-muted-foreground/70 hover:text-muted-foreground hover:bg-muted/50 transition-colors",
+              collapsed ? "w-10 h-8 p-0 justify-center" : "w-full"
             )}
           >
             {collapsed ? (
-              <PanelLeftOpen className="h-4 w-4" />
+              <PanelLeftOpen className="h-3.5 w-3.5" />
             ) : (
               <>
-                <PanelLeftClose className="h-4 w-4" />
-                <span>收起菜单</span>
+                <PanelLeftClose className="h-3.5 w-3.5" />
+                <span>收起</span>
               </>
             )}
           </button>
@@ -208,10 +178,10 @@ export function Sidebar({
       )}
 
       {/* Navigation */}
-      <nav className="flex-1 px-3 py-2 space-y-6 overflow-y-auto scrollbar-thin">
-        <div className="space-y-1">
+      <nav className="flex-1 px-2.5 py-2 space-y-5 overflow-y-auto scrollbar-thin">
+        <div className="space-y-0.5">
           {!collapsed && (
-            <div className="px-3 py-2 text-[11px] font-semibold text-muted-foreground/60 uppercase tracking-wider">
+            <div className="px-3 py-1.5 text-[10px] font-semibold text-muted-foreground/50 uppercase tracking-widest">
               概览
             </div>
           )}
@@ -224,9 +194,9 @@ export function Sidebar({
 
         {isAuthenticated && (
           <>
-            <div className="space-y-1">
+            <div className="space-y-0.5">
               {!collapsed && (
-                <div className="px-3 py-2 text-[11px] font-semibold text-muted-foreground/60 uppercase tracking-wider">
+                <div className="px-3 py-1.5 text-[10px] font-semibold text-muted-foreground/50 uppercase tracking-widest">
                   管理
                 </div>
               )}
@@ -237,9 +207,9 @@ export function Sidebar({
                 ))}
             </div>
 
-            <div className="space-y-1">
+            <div className="space-y-0.5">
               {!collapsed && (
-                <div className="px-3 py-2 text-[11px] font-semibold text-muted-foreground/60 uppercase tracking-wider">
+                <div className="px-3 py-1.5 text-[10px] font-semibold text-muted-foreground/50 uppercase tracking-widest">
                   系统
                 </div>
               )}
@@ -254,27 +224,27 @@ export function Sidebar({
       </nav>
 
       {/* Footer */}
-      <div className={cn("p-3 border-t", collapsed && "p-2")}>
+      <div className={cn("p-2.5 border-t", collapsed && "p-2")}>
         {/* Action Buttons */}
         <div className={cn(
           "flex gap-1",
-          collapsed ? "flex-col items-center" : "mb-3"
+          collapsed ? "flex-col items-center" : "mb-2"
         )}>
           <button
             type="button"
             title={collapsed ? (theme === 'dark' ? '浅色模式' : '深色模式') : undefined}
             className={cn(
-              "flex items-center justify-center rounded-lg transition-all duration-200",
+              "flex items-center justify-center rounded-md transition-colors duration-150",
               collapsed
-                ? "w-10 h-10 hover:bg-muted text-muted-foreground hover:text-foreground"
-                : "flex-1 h-9 gap-2 px-3 bg-muted/50 hover:bg-muted text-muted-foreground hover:text-foreground text-xs font-medium"
+                ? "w-10 h-9 hover:bg-muted text-muted-foreground hover:text-foreground"
+                : "flex-1 h-8 gap-1.5 px-2.5 hover:bg-muted/70 text-muted-foreground hover:text-foreground text-[11px] font-medium"
             )}
             onClick={toggleTheme}
           >
             {theme === 'dark' ? (
-              <Sun className="h-4 w-4" />
+              <Sun className="h-3.5 w-3.5" />
             ) : (
-              <Moon className="h-4 w-4" />
+              <Moon className="h-3.5 w-3.5" />
             )}
             {!collapsed && <span>{theme === 'dark' ? '浅色' : '深色'}</span>}
           </button>
@@ -285,13 +255,13 @@ export function Sidebar({
             rel="noopener noreferrer"
             title={collapsed ? "GitHub" : undefined}
             className={cn(
-              "flex items-center justify-center rounded-lg transition-all duration-200",
+              "flex items-center justify-center rounded-md transition-colors duration-150",
               collapsed
-                ? "w-10 h-10 hover:bg-muted text-muted-foreground hover:text-foreground"
-                : "flex-1 h-9 gap-2 px-3 bg-muted/50 hover:bg-muted text-muted-foreground hover:text-foreground text-xs font-medium"
+                ? "w-10 h-9 hover:bg-muted text-muted-foreground hover:text-foreground"
+                : "flex-1 h-8 gap-1.5 px-2.5 hover:bg-muted/70 text-muted-foreground hover:text-foreground text-[11px] font-medium"
             )}
           >
-            <Github className="h-4 w-4" />
+            <Github className="h-3.5 w-3.5" />
             {!collapsed && <span>GitHub</span>}
           </a>
         </div>
@@ -301,27 +271,26 @@ export function Sidebar({
           type="button"
           title={collapsed ? (isAuthenticated ? '退出登录' : '管理员登录') : undefined}
           className={cn(
-            'flex items-center justify-center gap-2 w-full rounded-lg text-sm font-medium transition-all duration-200',
-            collapsed ? 'h-10' : 'h-10 px-3',
+            'flex items-center justify-center gap-2 w-full rounded-lg text-[13px] font-medium transition-all duration-150',
+            collapsed ? 'h-9' : 'h-9 px-3',
             isAuthenticated
-              ? 'bg-destructive/10 text-destructive hover:bg-destructive/20'
-              : 'bg-primary text-primary-foreground hover:bg-primary/90 shadow-sm'
+              ? 'bg-destructive/8 text-destructive hover:bg-destructive/15'
+              : 'bg-primary text-primary-foreground hover:bg-primary/90 shadow-sm shadow-primary/15'
           )}
           onClick={handleAuthClick}
         >
           {isAuthenticated ? (
             <>
-              <LogOut className="h-4 w-4" />
+              <LogOut className="h-3.5 w-3.5" />
               {!collapsed && <span>退出登录</span>}
             </>
           ) : (
             <>
-              <LogIn className="h-4 w-4" />
+              <LogIn className="h-3.5 w-3.5" />
               {!collapsed && <span>管理员登录</span>}
             </>
           )}
         </button>
-
       </div>
     </aside>
   )
diff --git a/frontend/src/components/ui/dialog.tsx b/frontend/src/components/ui/dialog.tsx
index 7326a43..cb5a2c3 100644
--- a/frontend/src/components/ui/dialog.tsx
+++ b/frontend/src/components/ui/dialog.tsx
@@ -18,7 +18,7 @@ const DialogOverlay = React.forwardRef<
   <DialogPrimitive.Overlay
     ref={ref}
     className={cn(
-      "fixed inset-0 z-50 bg-black/80 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0",
+      "fixed inset-0 z-50 bg-black/60 backdrop-blur-sm data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0",
       className
     )}
     {...props}
@@ -35,7 +35,7 @@ const DialogContent = React.forwardRef<
     <DialogPrimitive.Content
       ref={ref}
       className={cn(
-        "fixed left-[50%] top-[50%] z-50 grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg",
+        "fixed left-[50%] top-[50%] z-50 grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-2xl duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-xl",
         className
       )}
       {...props}
diff --git a/frontend/src/index.css b/frontend/src/index.css
index 1ebee92..1300388 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -1,105 +1,100 @@
 @import 'tailwindcss';
 
 @theme {
-  /* 现代科技简约配色 - 深邃蓝主题 */
-  --color-background: hsl(210 20% 98%);
-  --color-foreground: hsl(222 47% 11%);
+  /* Refined color system - Deep indigo theme */
+  --color-background: hsl(220 20% 97%);
+  --color-foreground: hsl(224 71% 4%);
   --color-card: hsl(0 0% 100%);
-  --color-card-foreground: hsl(222 47% 11%);
+  --color-card-foreground: hsl(224 71% 4%);
   --color-popover: hsl(0 0% 100%);
-  --color-popover-foreground: hsl(222 47% 11%);
+  --color-popover-foreground: hsl(224 71% 4%);
 
-  /* 主色调 - 靛蓝色 */
-  --color-primary: hsl(226 70% 55%);
+  /* Primary - Vibrant indigo */
+  --color-primary: hsl(234 89% 60%);
   --color-primary-foreground: hsl(0 0% 100%);
 
-  /* 次要色 - 柔和灰蓝 */
+  /* Secondary */
   --color-secondary: hsl(220 14% 96%);
-  --color-secondary-foreground: hsl(222 47% 11%);
+  --color-secondary-foreground: hsl(224 71% 4%);
 
-  /* 静音色 */
+  /* Muted */
   --color-muted: hsl(220 14% 96%);
   --color-muted-foreground: hsl(220 9% 46%);
 
-  /* 强调色 */
+  /* Accent */
   --color-accent: hsl(220 14% 96%);
-  --color-accent-foreground: hsl(222 47% 11%);
+  --color-accent-foreground: hsl(224 71% 4%);
 
-  /* 危险色 - 柔和红 */
-  --color-destructive: hsl(0 72% 51%);
+  /* Destructive */
+  --color-destructive: hsl(0 84% 60%);
   --color-destructive-foreground: hsl(0 0% 100%);
 
-  /* 成功色 - 翡翠绿 */
-  --color-success: hsl(160 84% 39%);
+  /* Success */
+  --color-success: hsl(142 71% 45%);
   --color-success-foreground: hsl(0 0% 100%);
 
-  /* 警告色 - 琥珀黄 */
+  /* Warning */
   --color-warning: hsl(38 92% 50%);
   --color-warning-foreground: hsl(0 0% 100%);
 
-  /* 信息色 - 天蓝 */
+  /* Info */
   --color-info: hsl(199 89% 48%);
   --color-info-foreground: hsl(0 0% 100%);
 
-  /* 边框和输入框 */
+  /* Border & Input */
   --color-border: hsl(220 13% 91%);
   --color-input: hsl(220 13% 91%);
-  --color-ring: hsl(226 70% 55%);
+  --color-ring: hsl(234 89% 60%);
 
-  /* 侧边栏专用色 */
-  --color-sidebar: hsl(222 47% 11%);
+  /* Sidebar */
+  --color-sidebar: hsl(224 71% 4%);
   --color-sidebar-foreground: hsl(210 20% 98%);
   --color-sidebar-muted: hsl(220 17% 17%);
-  --color-sidebar-accent: hsl(226 70% 55%);
+  --color-sidebar-accent: hsl(234 89% 60%);
 
   --radius: 0.625rem;
 }
 
 .dark {
-  --color-background: hsl(222 47% 6%);
+  --color-background: hsl(224 71% 4%);
   --color-foreground: hsl(210 20% 98%);
-  --color-card: hsl(222 47% 9%);
+  --color-card: hsl(224 50% 8%);
   --color-card-foreground: hsl(210 20% 98%);
-  --color-popover: hsl(222 47% 9%);
+  --color-popover: hsl(224 50% 8%);
   --color-popover-foreground: hsl(210 20% 98%);
 
-  /* 主色调 - 深色模式下的靛蓝 */
-  --color-primary: hsl(226 76% 60%);
+  --color-primary: hsl(234 89% 67%);
   --color-primary-foreground: hsl(0 0% 100%);
 
-  --color-secondary: hsl(222 30% 14%);
+  --color-secondary: hsl(224 40% 12%);
   --color-secondary-foreground: hsl(210 20% 98%);
 
-  --color-muted: hsl(222 30% 14%);
-  --color-muted-foreground: hsl(220 9% 60%);
+  --color-muted: hsl(224 40% 12%);
+  --color-muted-foreground: hsl(220 9% 56%);
 
-  --color-accent: hsl(222 30% 14%);
+  --color-accent: hsl(224 40% 12%);
   --color-accent-foreground: hsl(210 20% 98%);
 
-  --color-destructive: hsl(0 62% 50%);
+  --color-destructive: hsl(0 72% 51%);
   --color-destructive-foreground: hsl(0 0% 98%);
 
-  /* 成功色 - 深色模式 */
-  --color-success: hsl(160 84% 35%);
+  --color-success: hsl(142 71% 40%);
   --color-success-foreground: hsl(0 0% 98%);
 
-  /* 警告色 - 深色模式 */
   --color-warning: hsl(38 92% 45%);
   --color-warning-foreground: hsl(0 0% 98%);
 
-  /* 信息色 - 深色模式 */
   --color-info: hsl(199 89% 42%);
   --color-info-foreground: hsl(0 0% 98%);
 
-  --color-border: hsl(222 30% 18%);
-  --color-input: hsl(222 30% 18%);
-  --color-ring: hsl(226 76% 60%);
+  --color-border: hsl(224 30% 16%);
+  --color-input: hsl(224 30% 16%);
+  --color-ring: hsl(234 89% 67%);
 
-  /* 侧边栏专用色 - 深色模式 */
-  --color-sidebar: hsl(222 47% 8%);
+  --color-sidebar: hsl(224 71% 3%);
   --color-sidebar-foreground: hsl(210 20% 98%);
-  --color-sidebar-muted: hsl(222 30% 12%);
-  --color-sidebar-accent: hsl(226 76% 60%);
+  --color-sidebar-muted: hsl(224 30% 10%);
+  --color-sidebar-accent: hsl(234 89% 67%);
 }
 
 @layer base {
@@ -115,7 +110,7 @@
 
   body {
     @apply bg-background text-foreground antialiased;
-    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
   }
 
   a,
@@ -125,29 +120,22 @@
     cursor: pointer;
   }
 
-  a:active,
-  button:active,
-  [role='button']:active {
-    opacity: 0.85;
-  }
-
-  /* 优化标题字重 */
   h1, h2, h3, h4, h5, h6 {
     font-weight: 600;
-    letter-spacing: -0.02em;
+    letter-spacing: -0.025em;
   }
 }
 
-/* 自定义滚动条 */
+/* Scrollbar */
 @layer utilities {
   .scrollbar-thin {
     scrollbar-width: thin;
-    scrollbar-color: hsl(220 9% 46% / 0.3) transparent;
+    scrollbar-color: hsl(220 9% 46% / 0.2) transparent;
   }
 
   .scrollbar-thin::-webkit-scrollbar {
-    width: 6px;
-    height: 6px;
+    width: 5px;
+    height: 5px;
   }
 
   .scrollbar-thin::-webkit-scrollbar-track {
@@ -155,67 +143,48 @@
   }
 
   .scrollbar-thin::-webkit-scrollbar-thumb {
-    background: hsl(220 9% 46% / 0.3);
+    background: hsl(220 9% 46% / 0.2);
     border-radius: 3px;
   }
 
   .scrollbar-thin::-webkit-scrollbar-thumb:hover {
-    background: hsl(220 9% 46% / 0.5);
+    background: hsl(220 9% 46% / 0.4);
   }
 
-  /* 玻璃效果 */
+  /* Glass morphism */
   .glass {
-    backdrop-filter: blur(12px) saturate(180%);
-    background: hsl(0 0% 100% / 0.8);
+    backdrop-filter: blur(16px) saturate(180%);
+    background: hsl(0 0% 100% / 0.75);
   }
 
   .dark .glass {
-    background: hsl(222 47% 9% / 0.8);
+    background: hsl(224 50% 8% / 0.75);
   }
 
-  /* 渐变边框效果 */
-  .gradient-border {
-    position: relative;
-  }
-
-  .gradient-border::before {
-    content: '';
-    position: absolute;
-    inset: 0;
-    border-radius: inherit;
-    padding: 1px;
-    background: linear-gradient(135deg, hsl(226 70% 55% / 0.3), hsl(160 84% 39% / 0.3));
-    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
-    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
-    -webkit-mask-composite: xor;
-    mask-composite: exclude;
-    pointer-events: none;
-  }
-
-  /* 柔和阴影 */
+  /* Soft shadow */
   .shadow-soft {
     box-shadow:
+      0 0 0 1px hsl(220 9% 46% / 0.04),
       0 1px 2px hsl(220 9% 46% / 0.04),
-      0 4px 8px hsl(220 9% 46% / 0.04),
-      0 8px 16px hsl(220 9% 46% / 0.04);
+      0 4px 8px -2px hsl(220 9% 46% / 0.06);
   }
 
   .dark .shadow-soft {
     box-shadow:
+      0 0 0 1px hsl(0 0% 100% / 0.03),
       0 1px 2px hsl(0 0% 0% / 0.2),
-      0 4px 8px hsl(0 0% 0% / 0.2),
-      0 8px 16px hsl(0 0% 0% / 0.2);
+      0 4px 8px -2px hsl(0 0% 0% / 0.25);
   }
 
-  /* 动画效果 */
+  /* Animate in */
   .animate-in {
-    animation: animate-in 0.2s ease-out;
+    animation: animate-in 0.3s cubic-bezier(0.16, 1, 0.3, 1);
   }
 
   @keyframes animate-in {
     from {
       opacity: 0;
-      transform: translateY(4px);
+      transform: translateY(6px);
     }
     to {
       opacity: 1;
@@ -223,21 +192,89 @@
     }
   }
 
-  /* 悬停提升效果 */
+  /* Staggered animation children */
+  .stagger-children > * {
+    animation: animate-in 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
+  }
+  .stagger-children > *:nth-child(1) { animation-delay: 0ms; }
+  .stagger-children > *:nth-child(2) { animation-delay: 50ms; }
+  .stagger-children > *:nth-child(3) { animation-delay: 100ms; }
+  .stagger-children > *:nth-child(4) { animation-delay: 150ms; }
+  .stagger-children > *:nth-child(5) { animation-delay: 200ms; }
+  .stagger-children > *:nth-child(6) { animation-delay: 250ms; }
+
+  /* Hover lift */
   .hover-lift {
-    transition: transform 0.2s ease, box-shadow 0.2s ease;
+    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease;
   }
 
   .hover-lift:hover {
     transform: translateY(-2px);
     box-shadow:
-      0 4px 12px hsl(220 9% 46% / 0.1),
-      0 8px 24px hsl(220 9% 46% / 0.1);
+      0 0 0 1px hsl(220 9% 46% / 0.04),
+      0 4px 12px hsl(220 9% 46% / 0.08),
+      0 12px 24px -4px hsl(220 9% 46% / 0.08);
   }
 
   .dark .hover-lift:hover {
     box-shadow:
+      0 0 0 1px hsl(0 0% 100% / 0.03),
       0 4px 12px hsl(0 0% 0% / 0.3),
-      0 8px 24px hsl(0 0% 0% / 0.3);
+      0 12px 24px -4px hsl(0 0% 0% / 0.3);
+  }
+
+  /* Gradient mesh background for hero */
+  .gradient-mesh {
+    background:
+      radial-gradient(ellipse at 20% 50%, hsl(234 89% 60% / 0.08) 0%, transparent 50%),
+      radial-gradient(ellipse at 80% 20%, hsl(280 80% 60% / 0.06) 0%, transparent 50%),
+      radial-gradient(ellipse at 40% 80%, hsl(142 71% 45% / 0.05) 0%, transparent 50%);
+  }
+
+  .dark .gradient-mesh {
+    background:
+      radial-gradient(ellipse at 20% 50%, hsl(234 89% 60% / 0.12) 0%, transparent 50%),
+      radial-gradient(ellipse at 80% 20%, hsl(280 80% 60% / 0.08) 0%, transparent 50%),
+      radial-gradient(ellipse at 40% 80%, hsl(142 71% 45% / 0.06) 0%, transparent 50%);
+  }
+
+  /* Shimmer effect */
+  @keyframes shimmer {
+    0% { background-position: -200% 0; }
+    100% { background-position: 200% 0; }
+  }
+
+  .shimmer {
+    background: linear-gradient(
+      90deg,
+      transparent 0%,
+      hsl(234 89% 60% / 0.06) 50%,
+      transparent 100%
+    );
+    background-size: 200% 100%;
+    animation: shimmer 3s ease-in-out infinite;
+  }
+
+  /* Pulse glow */
+  @keyframes pulse-glow {
+    0%, 100% { opacity: 0.4; }
+    50% { opacity: 0.8; }
+  }
+
+  .pulse-glow {
+    animation: pulse-glow 3s ease-in-out infinite;
+  }
+
+  /* Grid pattern for backgrounds */
+  .grid-pattern {
+    background-image: linear-gradient(hsl(220 9% 46% / 0.03) 1px, transparent 1px),
+                       linear-gradient(90deg, hsl(220 9% 46% / 0.03) 1px, transparent 1px);
+    background-size: 32px 32px;
+  }
+
+  .dark .grid-pattern {
+    background-image: linear-gradient(hsl(0 0% 100% / 0.02) 1px, transparent 1px),
+                       linear-gradient(90deg, hsl(0 0% 100% / 0.02) 1px, transparent 1px);
+    background-size: 32px 32px;
   }
 }
diff --git a/frontend/src/pages/ApiTest.tsx b/frontend/src/pages/ApiTest.tsx
index 1381cf4..401dbd3 100644
--- a/frontend/src/pages/ApiTest.tsx
+++ b/frontend/src/pages/ApiTest.tsx
@@ -1,5 +1,5 @@
 import { useState } from 'react'
-import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card'
+import { Card, CardContent } from '@/components/ui/card'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
@@ -8,8 +8,9 @@ import { Select } from '@/components/ui/select'
 import { Badge } from '@/components/ui/badge'
 import { useToast } from '@/components/ui/use-toast'
 import { apiClient } from '@/api/client'
-import { Send } from 'lucide-react'
+import { Send, Clock, CheckCircle, XCircle, Copy } from 'lucide-react'
 import { PageContainer } from '@/components/ui/page-container'
+import { cn, copyToClipboard } from '@/lib/utils'
 
 const requestTemplates: Record<string, any> = {
   '/v1/chat/completions': {
@@ -63,19 +64,30 @@ export function ApiTest() {
     setRequestBody(JSON.stringify(requestTemplates[newEndpoint], null, 2))
   }
 
+  const handleCopyResponse = async () => {
+    if (response) {
+      try {
+        await copyToClipboard(JSON.stringify(response, null, 2))
+        addToast('已复制到剪贴板', 'success')
+      } catch {
+        addToast('复制失败', 'error')
+      }
+    }
+  }
+
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault()
 
     if (!apiToken) {
-      addToast('请输入API令牌', 'error')
+      addToast('请输入 API 令牌', 'error')
       return
     }
 
     let body: any
     try {
       body = JSON.parse(requestBody)
-    } catch (error) {
-      addToast('请求体JSON格式错误', 'error')
+    } catch {
+      addToast('请求体 JSON 格式错误', 'error')
       return
     }
 
@@ -91,32 +103,34 @@ export function ApiTest() {
       setResponseTime(endTime - startTime)
       setResponse(result)
       setStatusCode(200)
-      addToast('请求成功', 'success')
     } catch (error: any) {
       const endTime = Date.now()
       setResponseTime(endTime - startTime)
       setStatusCode(error.status || 500)
       setResponse({ error: error.message })
-      addToast('请求失败', 'error')
     } finally {
       setIsLoading(false)
     }
   }
 
   return (
-    <PageContainer title="API 测试">
-      <Card>
-        <CardHeader>
-          <CardTitle>API 测试工具</CardTitle>
-          <CardDescription>测试您的 API 连接和配置</CardDescription>
-        </CardHeader>
-        <CardContent>
-          <form onSubmit={handleSubmit} className="space-y-4">
-            <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+    <PageContainer
+      title="API 测试"
+      description="测试 API 连接和配置"
+    >
+      <div className="grid grid-cols-1 lg:grid-cols-2 gap-4">
+        {/* Request Panel */}
+        <Card>
+          <CardContent className="p-5">
+            <div className="flex items-center gap-2 mb-5">
+              <div className="w-2 h-2 rounded-full bg-primary" />
+              <h3 className="font-semibold text-sm">请求</h3>
+            </div>
+
+            <form onSubmit={handleSubmit} className="space-y-4">
               <div className="space-y-2">
-                <Label htmlFor="endpoint">API 端点</Label>
+                <Label className="text-xs font-medium text-muted-foreground uppercase tracking-wider">端点</Label>
                 <Select
-                  id="endpoint"
                   value={endpoint}
                   onChange={(e) => handleEndpointChange(e.target.value)}
                 >
@@ -128,59 +142,96 @@ export function ApiTest() {
               </div>
 
               <div className="space-y-2">
-                <Label htmlFor="apiToken">API 令牌</Label>
+                <Label className="text-xs font-medium text-muted-foreground uppercase tracking-wider">API 令牌</Label>
                 <Input
-                  id="apiToken"
                   type="password"
                   value={apiToken}
                   onChange={(e) => setApiToken(e.target.value)}
                   placeholder="sk-..."
-                  required
                 />
               </div>
-            </div>
 
-            <div className="space-y-2">
-              <Label htmlFor="requestBody">请求体 (JSON)</Label>
-              <Textarea
-                id="requestBody"
-                value={requestBody}
-                onChange={(e) => setRequestBody(e.target.value)}
-                rows={12}
-                className="font-mono text-sm"
-                placeholder='{"model": "gpt-3.5-turbo", "messages": [...]}'
-              />
-              <p className="text-sm text-muted-foreground">直接编辑 JSON 格式的请求体</p>
-            </div>
-
-            <Button type="submit" disabled={isLoading} className="w-full sm:w-auto">
-              <Send className="h-4 w-4" />
-              {isLoading ? '发送中...' : '发送请求'}
-            </Button>
-          </form>
-
-          {response && (
-            <div className="mt-6 space-y-3">
-              <div className="flex flex-col sm:flex-row sm:items-center justify-between gap-2">
-                <h3 className="font-semibold">响应结果</h3>
-                <div className="flex gap-2">
-                  <Badge variant={statusCode === 200 ? 'success' : 'destructive'}>
-                    {statusCode === 200 ? '成功' : '失败'}
-                  </Badge>
-                  <Badge variant="outline">{responseTime}ms</Badge>
-                </div>
+              <div className="space-y-2">
+                <Label className="text-xs font-medium text-muted-foreground uppercase tracking-wider">请求体</Label>
+                <Textarea
+                  value={requestBody}
+                  onChange={(e) => setRequestBody(e.target.value)}
+                  rows={14}
+                  className="font-mono text-sm"
+                />
               </div>
-              <Card>
-                <CardContent className="p-4">
-                  <pre className="whitespace-pre-wrap break-words text-sm font-mono max-h-96 overflow-y-auto">
-                    {JSON.stringify(response, null, 2)}
-                  </pre>
-                </CardContent>
-              </Card>
+
+              <Button type="submit" disabled={isLoading} className="w-full">
+                {isLoading ? (
+                  <>
+                    <div className="w-4 h-4 border-2 border-primary-foreground border-t-transparent rounded-full animate-spin" />
+                    发送中...
+                  </>
+                ) : (
+                  <>
+                    <Send className="h-4 w-4" />
+                    发送请求
+                  </>
+                )}
+              </Button>
+            </form>
+          </CardContent>
+        </Card>
+
+        {/* Response Panel */}
+        <Card className={cn(
+          "transition-all duration-300",
+          !response && "opacity-60"
+        )}>
+          <CardContent className="p-5">
+            <div className="flex items-center justify-between mb-5">
+              <div className="flex items-center gap-2">
+                <div className={cn(
+                  "w-2 h-2 rounded-full",
+                  !statusCode ? "bg-muted-foreground/30" :
+                  statusCode === 200 ? "bg-success" : "bg-destructive"
+                )} />
+                <h3 className="font-semibold text-sm">响应</h3>
+              </div>
+              {statusCode && (
+                <div className="flex items-center gap-2">
+                  <Badge variant={statusCode === 200 ? 'success' : 'destructive'} className="text-xs">
+                    {statusCode === 200 ? (
+                      <><CheckCircle className="h-3 w-3 mr-1" />{statusCode}</>
+                    ) : (
+                      <><XCircle className="h-3 w-3 mr-1" />{statusCode}</>
+                    )}
+                  </Badge>
+                  <Badge variant="outline" className="text-xs font-mono">
+                    <Clock className="h-3 w-3 mr-1" />
+                    {responseTime}ms
+                  </Badge>
+                  <Button
+                    variant="ghost"
+                    size="icon"
+                    className="h-7 w-7"
+                    onClick={handleCopyResponse}
+                    title="复制响应"
+                  >
+                    <Copy className="h-3.5 w-3.5" />
+                  </Button>
+                </div>
+              )}
             </div>
-          )}
-        </CardContent>
-      </Card>
+
+            {response ? (
+              <pre className="whitespace-pre-wrap break-words text-sm font-mono bg-muted/50 rounded-lg p-4 max-h-[500px] overflow-y-auto scrollbar-thin">
+                {JSON.stringify(response, null, 2)}
+              </pre>
+            ) : (
+              <div className="flex flex-col items-center justify-center h-[400px] text-muted-foreground/40">
+                <Send className="h-10 w-10 mb-3" />
+                <p className="text-sm">发送请求后在此查看响应</p>
+              </div>
+            )}
+          </CardContent>
+        </Card>
+      </div>
     </PageContainer>
   )
 }
diff --git a/frontend/src/pages/Dashboard.tsx b/frontend/src/pages/Dashboard.tsx
index a424349..a1b97c4 100644
--- a/frontend/src/pages/Dashboard.tsx
+++ b/frontend/src/pages/Dashboard.tsx
@@ -1,6 +1,5 @@
-import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card'
-import { Globe, Gauge, BarChart3, Shield, Zap, ArrowRight } from 'lucide-react'
-import { PageContainer } from '@/components/ui/page-container'
+import { Card, CardContent } from '@/components/ui/card'
+import { Globe, Gauge, BarChart3, Shield, Zap, ArrowRight, Sparkles } from 'lucide-react'
 import { Button } from '@/components/ui/button'
 import { useAuthStore } from '@/store/auth'
 import { Link } from 'react-router-dom'
@@ -9,100 +8,122 @@ const features = [
   {
     icon: Globe,
     title: '多提供商支持',
-    description: '支持 OpenAI、Azure OpenAI 和 Claude API，轻松切换不同的 AI 服务。',
-    color: 'from-blue-500 to-blue-600',
+    description: '支持 OpenAI、Azure OpenAI、Claude 等多种 AI 服务提供商。',
+    gradient: 'from-blue-500/10 to-cyan-500/10',
+    iconBg: 'from-blue-500 to-cyan-500',
+    delay: '0ms',
   },
   {
     icon: Gauge,
     title: '负载均衡',
-    description: '自动在多个频道间分配请求，确保服务稳定性和高可用性。',
-    color: 'from-emerald-500 to-emerald-600',
+    description: '自动在多个频道间分配请求，确保高可用性。',
+    gradient: 'from-emerald-500/10 to-teal-500/10',
+    iconBg: 'from-emerald-500 to-teal-500',
+    delay: '50ms',
   },
   {
     icon: BarChart3,
     title: '用量追踪',
-    description: '实时监控 token 使用情况，精确计算成本，防止超出配额。',
-    color: 'from-amber-500 to-amber-600',
+    description: '实时监控 token 使用情况，精确成本核算。',
+    gradient: 'from-amber-500/10 to-orange-500/10',
+    iconBg: 'from-amber-500 to-orange-500',
+    delay: '100ms',
   },
   {
     icon: Shield,
     title: '安全管理',
-    description: '基于令牌的访问控制，为不同用户分配独立的 API 密钥。',
-    color: 'from-purple-500 to-purple-600',
+    description: '基于令牌的访问控制与独立 API 密钥分配。',
+    gradient: 'from-violet-500/10 to-purple-500/10',
+    iconBg: 'from-violet-500 to-purple-500',
+    delay: '150ms',
   },
 ]
 
 const steps = [
-  { num: '01', title: '管理员登录', desc: '使用管理员令牌登录系统' },
-  { num: '02', title: '配置频道', desc: '添加 OpenAI、Azure 或 Claude API 频道' },
-  { num: '03', title: '创建令牌', desc: '为您的应用创建 API 令牌' },
-  { num: '04', title: '开始使用', desc: '使用生成的令牌调用 API' },
+  { num: '01', title: '管理员登录', desc: '使用管理员令牌登录系统', color: 'text-blue-500' },
+  { num: '02', title: '配置频道', desc: '添加 AI 服务提供商频道', color: 'text-emerald-500' },
+  { num: '03', title: '创建令牌', desc: '为应用创建 API 令牌', color: 'text-amber-500' },
+  { num: '04', title: '开始使用', desc: '使用令牌调用 API', color: 'text-violet-500' },
 ]
 
 export function Dashboard() {
   const { isAuthenticated, openAuthModal } = useAuthStore()
 
   return (
-    <div className="p-4 md:p-6 lg:p-8 animate-in">
-      <div className="space-y-8">
-        {/* Hero Section */}
-        <Card className="overflow-hidden border-0 bg-gradient-to-br from-primary/10 via-background to-background">
-          <CardContent className="p-8 md:p-12">
-            <div className="max-w-2xl">
-              <div className="inline-flex items-center gap-2 px-3 py-1 rounded-full bg-primary/10 text-primary text-sm font-medium mb-4">
-                <Zap className="h-4 w-4" />
-                统一 AI 接口网关
+    <div className="animate-in">
+      {/* Hero Section */}
+      <div className="relative overflow-hidden">
+        <div className="gradient-mesh grid-pattern">
+          <div className="px-4 md:px-6 lg:px-8 py-12 md:py-16 lg:py-20">
+            <div className="max-w-3xl">
+              <div className="inline-flex items-center gap-2 px-3.5 py-1.5 rounded-full bg-primary/8 border border-primary/10 text-primary text-sm font-medium mb-6">
+                <Sparkles className="h-3.5 w-3.5" />
+                <span>Unified AI Gateway</span>
               </div>
-              <h1 className="text-3xl md:text-4xl font-bold tracking-tight mb-4">
-                欢迎使用 Awsl One API
+              <h1 className="text-4xl md:text-5xl lg:text-[3.5rem] font-bold tracking-tight leading-[1.1] mb-5">
+                <span className="bg-gradient-to-r from-foreground via-foreground to-foreground/70 bg-clip-text text-transparent">
+                  Awsl One API
+                </span>
               </h1>
-              <p className="text-lg text-muted-foreground mb-6">
-                一个强大的 API 代理和管理平台，为您提供统一的 AI 模型接口管理服务。
-                支持多种 AI 服务提供商，实现智能负载均衡和精确用量追踪。
+              <p className="text-lg md:text-xl text-muted-foreground leading-relaxed mb-8 max-w-2xl">
+                统一的 AI 模型接口网关。支持多服务商接入、智能负载均衡与精确用量追踪。
               </p>
               <div className="flex flex-wrap gap-3">
                 {isAuthenticated ? (
                   <>
-                    <Button asChild>
+                    <Button size="lg" asChild className="h-12 px-6 text-[15px] rounded-xl shadow-lg shadow-primary/20">
                       <Link to="/channels">
                         管理频道
-                        <ArrowRight className="h-4 w-4" />
+                        <ArrowRight className="h-4 w-4 ml-1" />
                       </Link>
                     </Button>
-                    <Button variant="outline" asChild>
+                    <Button variant="outline" size="lg" asChild className="h-12 px-6 text-[15px] rounded-xl">
                       <Link to="/api-test">测试 API</Link>
                     </Button>
                   </>
                 ) : (
                   <>
-                    <Button onClick={openAuthModal}>
+                    <Button size="lg" onClick={openAuthModal} className="h-12 px-6 text-[15px] rounded-xl shadow-lg shadow-primary/20">
                       管理员登录
-                      <ArrowRight className="h-4 w-4" />
+                      <ArrowRight className="h-4 w-4 ml-1" />
                     </Button>
-                    <Button variant="outline" asChild>
+                    <Button variant="outline" size="lg" asChild className="h-12 px-6 text-[15px] rounded-xl">
                       <Link to="/api-test">体验 API</Link>
                     </Button>
                   </>
                 )}
               </div>
             </div>
-          </CardContent>
-        </Card>
+          </div>
+        </div>
 
+        {/* Decorative elements */}
+        <div className="absolute top-12 right-8 w-72 h-72 bg-primary/5 rounded-full blur-3xl pointer-events-none" />
+        <div className="absolute bottom-0 right-1/4 w-48 h-48 bg-violet-500/5 rounded-full blur-3xl pointer-events-none" />
+      </div>
+
+      <div className="px-4 md:px-6 lg:px-8 pb-8 space-y-10">
         {/* Features Grid */}
         <div>
-          <h2 className="text-xl font-semibold mb-4">核心特性</h2>
-          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4">
+          <div className="flex items-center gap-3 mb-6">
+            <div className="h-px flex-1 bg-border" />
+            <h2 className="text-sm font-semibold text-muted-foreground uppercase tracking-wider">核心特性</h2>
+            <div className="h-px flex-1 bg-border" />
+          </div>
+          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4 stagger-children">
             {features.map((feature) => (
-              <Card key={feature.title} className="group hover-lift">
-                <CardContent className="p-6">
-                  <div className={`w-10 h-10 rounded-xl bg-gradient-to-br ${feature.color} flex items-center justify-center mb-4 shadow-lg group-hover:scale-110 transition-transform duration-200`}>
-                    <feature.icon className="h-5 w-5 text-white" />
+              <Card key={feature.title} className="group hover-lift border-0 bg-gradient-to-br from-card to-card overflow-hidden">
+                <CardContent className="p-6 relative">
+                  <div className={`absolute inset-0 bg-gradient-to-br ${feature.gradient} opacity-0 group-hover:opacity-100 transition-opacity duration-300`} />
+                  <div className="relative">
+                    <div className={`w-11 h-11 rounded-xl bg-gradient-to-br ${feature.iconBg} flex items-center justify-center mb-4 shadow-lg`}>
+                      <feature.icon className="h-5 w-5 text-white" />
+                    </div>
+                    <h3 className="font-semibold mb-1.5 text-[15px]">{feature.title}</h3>
+                    <p className="text-sm text-muted-foreground leading-relaxed">
+                      {feature.description}
+                    </p>
                   </div>
-                  <h3 className="font-semibold mb-2">{feature.title}</h3>
-                  <p className="text-sm text-muted-foreground leading-relaxed">
-                    {feature.description}
-                  </p>
                 </CardContent>
               </Card>
             ))}
@@ -110,25 +131,24 @@ export function Dashboard() {
         </div>
 
         {/* Quick Start */}
-        <Card>
-          <CardHeader>
-            <CardTitle>快速开始</CardTitle>
-            <CardDescription>按照以下步骤开始使用</CardDescription>
-          </CardHeader>
-          <CardContent>
-            <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-6">
-              {steps.map((step, index) => (
-                <div key={step.num} className="relative">
-                  {index < steps.length - 1 && (
-                    <div className="hidden lg:block absolute top-6 left-full w-full h-px bg-border -translate-x-4" />
-                  )}
+        <Card className="overflow-hidden">
+          <CardContent className="p-0">
+            <div className="p-6 pb-2">
+              <h2 className="text-lg font-semibold mb-1">快速开始</h2>
+              <p className="text-sm text-muted-foreground">四步完成配置，开始使用统一接口</p>
+            </div>
+            <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 divide-y sm:divide-y-0 sm:divide-x divide-border">
+              {steps.map((step) => (
+                <div key={step.num} className="p-6 group">
                   <div className="flex items-start gap-4">
-                    <div className="flex-shrink-0 w-12 h-12 rounded-xl bg-muted flex items-center justify-center">
-                      <span className="text-lg font-bold text-muted-foreground">{step.num}</span>
+                    <div className="flex-shrink-0">
+                      <span className={`text-2xl font-bold ${step.color} opacity-60 group-hover:opacity-100 transition-opacity`}>
+                        {step.num}
+                      </span>
                     </div>
                     <div>
-                      <h4 className="font-semibold mb-1">{step.title}</h4>
-                      <p className="text-sm text-muted-foreground">{step.desc}</p>
+                      <h4 className="font-semibold mb-1 text-sm">{step.title}</h4>
+                      <p className="text-xs text-muted-foreground leading-relaxed">{step.desc}</p>
                     </div>
                   </div>
                 </div>
@@ -136,6 +156,19 @@ export function Dashboard() {
             </div>
           </CardContent>
         </Card>
+
+        {/* Supported Providers */}
+        <div className="text-center py-4">
+          <p className="text-xs text-muted-foreground/60 uppercase tracking-wider mb-4">支持的服务提供商</p>
+          <div className="flex items-center justify-center gap-6 flex-wrap text-muted-foreground/40">
+            {['OpenAI', 'Azure OpenAI', 'Claude', 'OpenAI Responses'].map((name) => (
+              <div key={name} className="flex items-center gap-2 text-sm font-medium hover:text-muted-foreground transition-colors">
+                <Zap className="h-3.5 w-3.5" />
+                {name}
+              </div>
+            ))}
+          </div>
+        </div>
       </div>
     </div>
   )
diff --git a/frontend/src/pages/Database.tsx b/frontend/src/pages/Database.tsx
index 30de3b6..08e1898 100644
--- a/frontend/src/pages/Database.tsx
+++ b/frontend/src/pages/Database.tsx
@@ -1,10 +1,11 @@
 import { useState } from 'react'
 import { useMutation } from '@tanstack/react-query'
 import { apiClient } from '@/api/client'
-import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
+import { Card, CardContent } from '@/components/ui/card'
 import { Button } from '@/components/ui/button'
 import { useToast } from '@/components/ui/use-toast'
-import { Database as DatabaseIcon, Info } from 'lucide-react'
+import { Database as DatabaseIcon, Info, CheckCircle, AlertTriangle, RefreshCw } from 'lucide-react'
+import { PageContainer } from '@/components/ui/page-container'
 
 export function Database() {
   const [result, setResult] = useState<any>(null)
@@ -31,40 +32,74 @@ export function Database() {
   }
 
   return (
-    <div className="p-6 space-y-6">
-      <div className="flex items-center justify-between">
-        <h1 className="text-3xl font-bold tracking-tight">数据库管理</h1>
-      </div>
-
-      <Card>
-        <CardHeader>
-          <div className="flex items-center justify-between">
-            <CardTitle>数据库初始化</CardTitle>
-            <Button onClick={handleInit} disabled={initMutation.isPending}>
-              <DatabaseIcon className="h-4 w-4" />
-              {initMutation.isPending ? '初始化中...' : '初始化数据库'}
-            </Button>
-          </div>
-        </CardHeader>
-        <CardContent className="space-y-4">
-          <div className="flex items-center gap-2 text-sm text-muted-foreground">
-            <Info className="h-4 w-4" />
-            <span>初始化数据库将创建必要的表结构。如果表已存在，操作将被忽略。</span>
-          </div>
-
-          {result && (
-            <div className="mt-4">
-              <Card>
-                <CardContent className="pt-6">
-                  <pre className="whitespace-pre-wrap text-sm font-mono">
-                    {JSON.stringify(result, null, 2)}
-                  </pre>
-                </CardContent>
-              </Card>
+    <PageContainer
+      title="数据库管理"
+      description="管理数据库结构和初始化"
+    >
+      <div className="space-y-4">
+        {/* Init Card */}
+        <Card>
+          <CardContent className="p-6">
+            <div className="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4">
+              <div className="flex items-start gap-4">
+                <div className="w-11 h-11 rounded-xl bg-gradient-to-br from-primary/10 to-primary/5 flex items-center justify-center flex-shrink-0">
+                  <DatabaseIcon className="h-5 w-5 text-primary" />
+                </div>
+                <div>
+                  <h3 className="font-semibold mb-1">数据库初始化</h3>
+                  <p className="text-sm text-muted-foreground">
+                    创建必要的表结构。如果表已存在，操作将被忽略。
+                  </p>
+                </div>
+              </div>
+              <Button
+                onClick={handleInit}
+                disabled={initMutation.isPending}
+                className="flex-shrink-0"
+              >
+                {initMutation.isPending ? (
+                  <>
+                    <RefreshCw className="h-4 w-4 animate-spin" />
+                    初始化中...
+                  </>
+                ) : (
+                  <>
+                    <DatabaseIcon className="h-4 w-4" />
+                    初始化数据库
+                  </>
+                )}
+              </Button>
             </div>
-          )}
-        </CardContent>
-      </Card>
-    </div>
+          </CardContent>
+        </Card>
+
+        {/* Info */}
+        <div className="px-4 py-3 rounded-xl bg-muted/50 text-sm text-muted-foreground flex items-start gap-2.5">
+          <Info className="h-4 w-4 mt-0.5 flex-shrink-0 text-info" />
+          <span>数据库使用 Cloudflare D1，初始化操作幂等安全，可重复执行。</span>
+        </div>
+
+        {/* Result */}
+        {result && (
+          <Card>
+            <CardContent className="p-6">
+              <div className="flex items-center gap-2 mb-4">
+                {result.error ? (
+                  <AlertTriangle className="h-4 w-4 text-destructive" />
+                ) : (
+                  <CheckCircle className="h-4 w-4 text-success" />
+                )}
+                <h3 className="font-semibold text-sm">
+                  {result.error ? '执行出错' : '执行结果'}
+                </h3>
+              </div>
+              <pre className="whitespace-pre-wrap text-sm font-mono bg-muted/50 rounded-lg p-4 overflow-x-auto">
+                {JSON.stringify(result, null, 2)}
+              </pre>
+            </CardContent>
+          </Card>
+        )}
+      </div>
+    </PageContainer>
   )
 }
diff --git a/frontend/src/pages/NotFound.tsx b/frontend/src/pages/NotFound.tsx
new file mode 100644
index 0000000..6cd55ea
--- /dev/null
+++ b/frontend/src/pages/NotFound.tsx
@@ -0,0 +1,26 @@
+import { Button } from '@/components/ui/button'
+import { Link } from 'react-router-dom'
+import { ArrowLeft, Zap } from 'lucide-react'
+
+export function NotFound() {
+  return (
+    <div className="flex flex-col items-center justify-center min-h-[60vh] px-4 animate-in">
+      <div className="relative mb-8">
+        <div className="w-24 h-24 rounded-3xl bg-gradient-to-br from-primary/10 to-violet-500/10 flex items-center justify-center">
+          <Zap className="h-10 w-10 text-primary/40" />
+        </div>
+        <div className="absolute -inset-4 bg-primary/5 rounded-full blur-2xl" />
+      </div>
+      <h1 className="text-6xl font-bold text-muted-foreground/20 mb-2">404</h1>
+      <p className="text-lg text-muted-foreground mb-8">
+        页面不存在
+      </p>
+      <Button variant="outline" size="lg" asChild className="rounded-xl">
+        <Link to="/">
+          <ArrowLeft className="h-4 w-4 mr-2" />
+          返回首页
+        </Link>
+      </Button>
+    </div>
+  )
+}