diff --git a/app/(admin)/layout.tsx b/app/(admin)/layout.tsx
index 5878854..5475480 100644
--- a/app/(admin)/layout.tsx
+++ b/app/(admin)/layout.tsx
@@ -43,7 +43,7 @@ export default async function AdminLayout({
         tutorialEnabled={siteSettings.tutorialEnabled ?? false}
         rankingEnabled={siteSettings.rankingEnabled ?? true}
       />
-      <div className="flex-1 pt-16">{children}</div>
+      <div className="flex-1 pr-20">{children}</div>
     </div>
   );
 }
diff --git a/app/(chat)/layout.tsx b/app/(chat)/layout.tsx
index 142db4e..3676ee9 100644
--- a/app/(chat)/layout.tsx
+++ b/app/(chat)/layout.tsx
@@ -63,9 +63,9 @@ async function SidebarWrapper({ children }: { children: React.ReactNode }) {
         tutorialEnabled={siteSettings.tutorialEnabled ?? false}
         rankingEnabled={siteSettings.rankingEnabled ?? true}
       />
-      <div className="pt-14 flex h-full w-full overflow-hidden"> {/* Add padding-top for fixed navbar */}
+      <div className="flex h-svh w-full overflow-hidden pr-20">
         <AppSidebar user={session?.user} />
-        <SidebarInset className="h-[calc(100vh-56px)]">{children}</SidebarInset> {/* Adjust height */}
+        <SidebarInset className="h-full">{children}</SidebarInset>
       </div>
     </SidebarProvider>
   );
diff --git a/app/canvas/[id]/layout.tsx b/app/canvas/[id]/layout.tsx
index 7da871c..5f9eb57 100644
--- a/app/canvas/[id]/layout.tsx
+++ b/app/canvas/[id]/layout.tsx
@@ -59,7 +59,7 @@ async function CanvasLayoutWrapper({ children }: { children: React.ReactNode })
         tutorialEnabled={siteSettings.tutorialEnabled ?? false}
         rankingEnabled={siteSettings.rankingEnabled ?? true}
       />
-      <div className="pt-12 h-full">
+      <div className="h-full pr-20">
         {children}
       </div>
     </div>
diff --git a/components/app-sidebar.tsx b/components/app-sidebar.tsx
index 36476df..fd57c14 100644
--- a/components/app-sidebar.tsx
+++ b/components/app-sidebar.tsx
@@ -59,7 +59,7 @@ export function AppSidebar({ user }: { user: User | undefined }) {
 
   return (
     <>
-      <Sidebar className="group-data-[side=left]:border-r-0 !top-14 !h-[calc(100svh-3.5rem)]">
+      <Sidebar className="group-data-[side=left]:border-r-0">
         <SidebarHeader>
           <SidebarMenu>
             <div className="flex flex-row items-center justify-between w-full">
diff --git a/components/top-navbar.tsx b/components/top-navbar.tsx
index 78a07e2..c4ce895 100644
--- a/components/top-navbar.tsx
+++ b/components/top-navbar.tsx
@@ -124,6 +124,25 @@ export function TopNavbar({
   // 决定显示哪个 LOGO
   const displayLogo = (siteLogoDark && siteLogoDark.trim() !== "") ? siteLogoDark : siteLogo;
 
+  const getShortLabel = (label: string) => {
+    const trimmed = label.trim();
+    if (!trimmed) return "";
+    if (trimmed === "AI精选") return "精选";
+    if (trimmed === "功能教程") return "教程";
+    if (trimmed === "精选榜") return "榜单";
+    if (trimmed === "图片编辑") return "编辑";
+    if (trimmed === "无限画布") return "画布";
+    if (trimmed === "我的图册") return "图册";
+    if (trimmed === "系统设置") return "设置";
+    if (trimmed === "工具箱") return "工具";
+    if (trimmed === "工具箱2") return "工具";
+    return Array.from(trimmed).slice(0, 2).join("");
+  };
+
+  const navItemBaseClass =
+    "flex h-14 w-14 flex-col items-center justify-center gap-1 rounded-xl text-white hover:bg-white/10 transition-colors";
+  const navLabelClass = "text-[10px] leading-none font-medium";
+
   // 打开图片编辑器 - 直接打开，不触发上传
   const handleOpenImageEditor = () => {
     setEditorImageUrl(""); // 确保初始为空
@@ -182,11 +201,11 @@ export function TopNavbar({
   };
 
   const navContent = (
-    <nav className="fixed top-0 left-0 right-0 z-[100] flex h-12 items-center justify-between bg-black/90 backdrop-blur-sm px-4 text-white border-b border-white/10 shadow-sm">
-      {/* 左侧：LOGO + 网站名称 */}
-      <a 
-        href="/" 
-        className="flex items-center gap-2 transition-opacity hover:opacity-80"
+    <nav className="fixed right-0 top-0 bottom-0 z-[100] flex w-20 flex-col items-center bg-black/90 backdrop-blur-sm text-white border-l border-white/10 shadow-sm">
+      {/* 顶部：LOGO + 网站名称 */}
+      <a
+        href="/"
+        className="mt-3 flex flex-col items-center gap-1 transition-opacity hover:opacity-80"
         onClick={(e) => {
           e.preventDefault();
           window.location.href = "/";
@@ -196,14 +215,14 @@ export function TopNavbar({
           <img
             src={displayLogo}
             alt={siteName}
-            className="h-6 w-6 object-contain"
+            className="h-7 w-7 object-contain"
           />
         )}
-        <span className="text-sm font-semibold">{siteName}</span>
+        <span className="max-w-[4.5rem] text-center text-[10px] leading-tight line-clamp-2">{siteName}</span>
       </a>
 
-      {/* 右侧区域：自定义链接 + 系统设置 */}
-      <div className="flex items-center gap-2">
+      {/* 侧边功能区 */}
+      <div className="mt-4 flex w-full flex-1 flex-col items-center gap-3 overflow-y-auto px-2 pb-4">
         {/* 工具箱1 (如果启用且有链接) */}
         {toolbox1Enabled && customLinks.filter(l => (l.toolboxGroup || 1) === 1).length > 0 && (
           <DropdownMenu>
@@ -211,31 +230,33 @@ export function TopNavbar({
               <Button
                 variant="ghost"
                 size="sm"
-                className="flex items-center gap-1 h-8 px-3 text-white hover:bg-white/15 hover:text-white rounded-full transition-colors"
+                className={`${navItemBaseClass} p-0`}
+                title={toolbox1Name}
+                type="button"
               >
-                <Briefcase className="h-4 w-4" />
-                <span className="text-sm font-medium">{toolbox1Name}</span>
+                <Briefcase className="h-5 w-5" />
+                <span className={navLabelClass}>{getShortLabel(toolbox1Name)}</span>
               </Button>
             </DropdownMenuTrigger>
-            <DropdownMenuContent align="end" className="w-[320px] p-2">
-               <div className="grid grid-cols-2 gap-2">
-                  {customLinks
-                    .filter(l => (l.toolboxGroup || 1) === 1)
-                    .sort((a, b) => a.order - b.order)
-                    .map((link) => (
-                      <DropdownMenuItem key={link.id} asChild className="cursor-pointer">
-                        <a
-                          href={link.url}
-                          target="_blank"
-                          rel="noopener noreferrer"
-                          className="flex flex-col items-center justify-center gap-2 rounded-md bg-muted/50 p-4 hover:bg-accent hover:text-accent-foreground text-center h-20 transition-colors"
-                        >
-                          <ExternalLink className="h-5 w-5 opacity-70" />
-                          <span className="text-xs font-medium line-clamp-2">{link.name}</span>
-                        </a>
-                      </DropdownMenuItem>
-                  ))}
-               </div>
+            <DropdownMenuContent side="left" align="center" className="w-[320px] p-2">
+              <div className="grid grid-cols-2 gap-2">
+                {customLinks
+                  .filter(l => (l.toolboxGroup || 1) === 1)
+                  .sort((a, b) => a.order - b.order)
+                  .map((link) => (
+                    <DropdownMenuItem key={link.id} asChild className="cursor-pointer">
+                      <a
+                        href={link.url}
+                        target="_blank"
+                        rel="noopener noreferrer"
+                        className="flex flex-col items-center justify-center gap-2 rounded-md bg-muted/50 p-4 hover:bg-accent hover:text-accent-foreground text-center h-20 transition-colors"
+                      >
+                        <ExternalLink className="h-5 w-5 opacity-70" />
+                        <span className="text-xs font-medium line-clamp-2">{link.name}</span>
+                      </a>
+                    </DropdownMenuItem>
+                ))}
+              </div>
             </DropdownMenuContent>
           </DropdownMenu>
         )}
@@ -247,31 +268,33 @@ export function TopNavbar({
               <Button
                 variant="ghost"
                 size="sm"
-                className="flex items-center gap-1 h-8 px-3 text-white hover:bg-white/15 hover:text-white rounded-full transition-colors"
+                className={`${navItemBaseClass} p-0`}
+                title={toolbox2Name}
+                type="button"
               >
-                <Briefcase className="h-4 w-4" />
-                <span className="text-sm font-medium">{toolbox2Name}</span>
+                <Briefcase className="h-5 w-5" />
+                <span className={navLabelClass}>{getShortLabel(toolbox2Name)}</span>
               </Button>
             </DropdownMenuTrigger>
-            <DropdownMenuContent align="end" className="w-[320px] p-2">
-               <div className="grid grid-cols-2 gap-2">
-                  {customLinks
-                    .filter(l => l.toolboxGroup === 2)
-                    .sort((a, b) => a.order - b.order)
-                    .map((link) => (
-                      <DropdownMenuItem key={link.id} asChild className="cursor-pointer">
-                        <a
-                          href={link.url}
-                          target="_blank"
-                          rel="noopener noreferrer"
-                          className="flex flex-col items-center justify-center gap-2 rounded-md bg-muted/50 p-4 hover:bg-accent hover:text-accent-foreground text-center h-20 transition-colors"
-                        >
-                          <ExternalLink className="h-5 w-5 opacity-70" />
-                          <span className="text-xs font-medium line-clamp-2">{link.name}</span>
-                        </a>
-                      </DropdownMenuItem>
-                  ))}
-               </div>
+            <DropdownMenuContent side="left" align="center" className="w-[320px] p-2">
+              <div className="grid grid-cols-2 gap-2">
+                {customLinks
+                  .filter(l => l.toolboxGroup === 2)
+                  .sort((a, b) => a.order - b.order)
+                  .map((link) => (
+                    <DropdownMenuItem key={link.id} asChild className="cursor-pointer">
+                      <a
+                        href={link.url}
+                        target="_blank"
+                        rel="noopener noreferrer"
+                        className="flex flex-col items-center justify-center gap-2 rounded-md bg-muted/50 p-4 hover:bg-accent hover:text-accent-foreground text-center h-20 transition-colors"
+                      >
+                        <ExternalLink className="h-5 w-5 opacity-70" />
+                        <span className="text-xs font-medium line-clamp-2">{link.name}</span>
+                      </a>
+                    </DropdownMenuItem>
+                ))}
+              </div>
             </DropdownMenuContent>
           </DropdownMenu>
         )}
@@ -279,15 +302,15 @@ export function TopNavbar({
         {/* AI智能精选 */}
         <a
           href="/featured"
-          className="flex items-center gap-1 h-8 px-3 text-white hover:bg-white/15 hover:text-white rounded-full transition-colors text-sm font-medium"
-          title="AI智能精选"
+          className={navItemBaseClass}
+          title="AI精选"
           onClick={(e) => {
             e.preventDefault();
             window.location.href = "/featured";
           }}
         >
-          <Sparkles className="h-4 w-4 text-yellow-400" />
-          <span>AI精选</span>
+          <Sparkles className="h-5 w-5 text-yellow-400" />
+          <span className={navLabelClass}>{getShortLabel("AI精选")}</span>
         </a>
 
         {/* 功能教程 */}
@@ -297,14 +320,15 @@ export function TopNavbar({
               <Button
                 variant="ghost"
                 size="sm"
-                className="flex items-center gap-1 h-8 px-3 text-white hover:bg-white/15 hover:text-white rounded-full transition-colors"
+                className={`${navItemBaseClass} p-0`}
                 type="button"
+                title="功能教程"
               >
-                <PlayCircle className="h-4 w-4 text-green-400" />
-                <span className="text-sm font-medium">功能教程</span>
+                <PlayCircle className="h-5 w-5 text-green-400" />
+                <span className={navLabelClass}>{getShortLabel("功能教程")}</span>
               </Button>
             </DropdownMenuTrigger>
-            <DropdownMenuContent align="end" className="w-[320px] p-2">
+            <DropdownMenuContent side="left" align="center" className="w-[320px] p-2">
               <div className="space-y-1 max-h-[400px] overflow-y-auto">
                 {tutorialVideos
                   .sort((a, b) => a.order - b.order)
@@ -355,14 +379,15 @@ export function TopNavbar({
               <Button
                 variant="ghost"
                 size="sm"
-                className="flex items-center gap-1 h-8 px-3 text-white hover:bg-white/15 hover:text-white rounded-full transition-colors"
+                className={`${navItemBaseClass} p-0`}
                 type="button"
+                title="精选榜单"
               >
-                <Trophy className="h-4 w-4 text-orange-400" />
-                <span className="text-sm font-medium">精选榜</span>
+                <Trophy className="h-5 w-5 text-orange-400" />
+                <span className={navLabelClass}>{getShortLabel("精选榜")}</span>
               </Button>
             </DropdownMenuTrigger>
-            <DropdownMenuContent align="end" className="w-[280px] p-3">
+            <DropdownMenuContent side="left" align="center" className="w-[280px] p-3">
               <div className="flex items-center gap-2 mb-3 pb-2 border-b">
                 <Trophy className="h-5 w-5 text-orange-500" />
                 <span className="font-semibold">精选榜单 TOP5</span>
@@ -409,18 +434,18 @@ export function TopNavbar({
         <Button
           variant="ghost"
           size="sm"
-          className="flex items-center gap-1 h-8 px-3 text-white hover:bg-white/15 hover:text-white rounded-full transition-colors"
+          className={`${navItemBaseClass} p-0`}
           onClick={handleOpenImageEditor}
           type="button"
           title="图片编辑"
         >
-          <Edit className="h-4 w-4" />
-          <span className="text-sm font-medium">图片编辑</span>
+          <Edit className="h-5 w-5" />
+          <span className={navLabelClass}>{getShortLabel("图片编辑")}</span>
         </Button>
 
         {/* 无限画布 */}
         <button
-          className="flex items-center gap-1 h-8 px-3 text-white hover:bg-white/15 hover:text-white rounded-full transition-colors text-sm font-medium"
+          className={navItemBaseClass}
           onClick={() => {
             const newId = crypto.randomUUID();
             window.location.href = `/canvas/${newId}`;
@@ -428,44 +453,42 @@ export function TopNavbar({
           type="button"
           title="无限画布"
         >
-          <LayoutGrid className="h-4 w-4 text-purple-400" />
-          <span>无限画布</span>
+          <LayoutGrid className="h-5 w-5 text-purple-400" />
+          <span className={navLabelClass}>{getShortLabel("无限画布")}</span>
         </button>
 
         {/* 我的图册 */}
         <a
           href="/gallery"
-          className="flex items-center gap-1 h-8 px-3 text-white hover:bg-white/15 hover:text-white rounded-full transition-colors text-sm font-medium"
+          className={navItemBaseClass}
           title="我的图册"
           onClick={(e) => {
             e.preventDefault();
             window.location.href = "/gallery";
           }}
         >
-          <Images className="h-4 w-4" />
-          <span>我的图册</span>
+          <Images className="h-5 w-5" />
+          <span className={navLabelClass}>{getShortLabel("我的图册")}</span>
         </a>
+      </div>
 
-        {/* 分隔线 (如果有链接或图册按钮，且是管理员) */}
-        {isAdmin && (
-          <div className="hidden h-4 w-px bg-white/20 mx-1 sm:block" />
-        )}
-
-        {/* 系统设置（仅管理员可见）*/}
-        {isAdmin && (
+      {/* 系统设置（仅管理员可见）*/}
+      {isAdmin && (
+        <div className="pb-4">
           <a
             href="/settings"
-            className="flex items-center justify-center h-8 w-8 text-white hover:bg-white/15 hover:text-white rounded-full"
+            className={navItemBaseClass}
             title="系统设置"
             onClick={(e) => {
               e.preventDefault();
               window.location.href = "/settings";
             }}
           >
-            <Settings className="h-4 w-4" />
+            <Settings className="h-5 w-5" />
+            <span className={navLabelClass}>{getShortLabel("系统设置")}</span>
           </a>
-        )}
-      </div>
+        </div>
+      )}
 
       {/* 图片编辑器 */}
       {showImageEditor && (