diff --git a/src/apps/admin/AdminEnterpriseApplicationsPage.tsx b/src/apps/admin/AdminEnterpriseApplicationsPage.tsx
index e90487b..c8b771e 100644
--- a/src/apps/admin/AdminEnterpriseApplicationsPage.tsx
+++ b/src/apps/admin/AdminEnterpriseApplicationsPage.tsx
@@ -191,7 +191,7 @@ export function AdminEnterpriseApplicationsPage() {
         <Tabs
           items={[
             { label: '短信应用', value: 'sms', content: <Table columns={smsColumns} data={filteredSmsApps} rowKey="id" /> },
-            { label: '彩信应用', value: 'mms', content: <Table columns={mmsColumns} data={filteredMmsApps} rowKey="id" /> },
+            { label: '彩信应用', value: 'mms', pending: true, content: <Table columns={mmsColumns} data={filteredMmsApps} rowKey="id" /> },
           ]}
         />
       </div>
diff --git a/src/apps/admin/AdminEnterpriseSignaturesPage.tsx b/src/apps/admin/AdminEnterpriseSignaturesPage.tsx
index 65d9aa8..48801e0 100644
--- a/src/apps/admin/AdminEnterpriseSignaturesPage.tsx
+++ b/src/apps/admin/AdminEnterpriseSignaturesPage.tsx
@@ -565,6 +565,7 @@ export function AdminEnterpriseSignaturesPage() {
             { label: '短信签名', value: 'sms', content: smsSignatureContent },
             {
               label: '彩信签名',
+              pending: true,
               value: 'mms',
               content: (
                 <>
diff --git a/src/apps/admin/AdminEnterpriseTemplatesPage.tsx b/src/apps/admin/AdminEnterpriseTemplatesPage.tsx
index 8a49382..8439a49 100644
--- a/src/apps/admin/AdminEnterpriseTemplatesPage.tsx
+++ b/src/apps/admin/AdminEnterpriseTemplatesPage.tsx
@@ -595,7 +595,7 @@ export function AdminEnterpriseTemplatesPage() {
           value={activeTab}
           items={[
             { label: '短信模板', value: 'sms', content: smsContent },
-            { label: '彩信模板', value: 'mms', content: mmsContent },
+            { label: '彩信模板', value: 'mms', pending: true, content: mmsContent },
           ]}
         />
       </div>
diff --git a/src/components/ui/Tabs.tsx b/src/components/ui/Tabs.tsx
index a5afe7f..048b39a 100644
--- a/src/components/ui/Tabs.tsx
+++ b/src/components/ui/Tabs.tsx
@@ -5,6 +5,7 @@ export type TabItem = {
   label: string;
   value: string;
   content: ReactNode;
+  pending?: boolean;
 };
 
 type TabsProps = {
@@ -36,7 +37,8 @@ export function Tabs({ items, defaultValue, value, onChange }: TabsProps) {
             role="tab"
             type="button"
           >
-            {item.label}
+            <span>{item.label}</span>
+            {item.pending ? <span className="dev-status-badge">待开发</span> : null}
           </button>
         ))}
       </div>
diff --git a/src/layouts/AdminLayout.tsx b/src/layouts/AdminLayout.tsx
index 748a602..f374663 100644
--- a/src/layouts/AdminLayout.tsx
+++ b/src/layouts/AdminLayout.tsx
@@ -61,7 +61,7 @@ export function AdminLayout() {
             { label: '企业认证审核', to: '/admin/enterprise-audit', icon: ShieldCheck },
             { label: '短信审核', to: '/admin/sms-audit', icon: MessageSquare },
             { label: '短信模板审核', to: '/admin/templates', icon: FileCheck2 },
-            { label: '彩信模板审核', to: '/admin/signatures', icon: ImageIcon },
+            { label: '彩信模板审核', to: '/admin/signatures', icon: ImageIcon, pending: true },
           ],
         },
         {
@@ -69,7 +69,7 @@ export function AdminLayout() {
           icon: RadioTower,
           items: [
             { label: '短信通道管理', to: '/admin/channels', icon: RadioTower },
-            { label: '彩信通道管理', to: '/admin/mms-channels', icon: ImageIcon },
+            { label: '彩信通道管理', to: '/admin/mms-channels', icon: ImageIcon, pending: true },
             { label: '短信通道组管理', to: '/admin/channel-groups', icon: Layers3 },
           ],
         },
@@ -86,7 +86,7 @@ export function AdminLayout() {
           icon: Send,
           items: [
             { label: '短信任务进度', to: '/admin/sms-task-progress', icon: TrendingUp },
-            { label: '彩信任务进度', to: '/admin/mms-task-progress', icon: BarChart3 },
+            { label: '彩信任务进度', to: '/admin/mms-task-progress', icon: BarChart3, pending: true },
           ],
         },
         {
@@ -94,7 +94,7 @@ export function AdminLayout() {
           icon: ReceiptText,
           items: [
             { label: '短信记录', to: '/admin/sms-records', icon: MessageSquare },
-            { label: '彩信记录', to: '/admin/mms-records', icon: ImageIcon },
+            { label: '彩信记录', to: '/admin/mms-records', icon: ImageIcon, pending: true },
             { label: '短信上行记录', to: '/admin/sms-uplink-records', icon: MessageSquare },
             { label: '充值记录', to: '/admin/recharge-records', icon: ReceiptText },
             { label: '账单流水', to: '/admin/billing', icon: ReceiptText },
diff --git a/src/layouts/AppShell.tsx b/src/layouts/AppShell.tsx
index 3ce992d..6dc9349 100644
--- a/src/layouts/AppShell.tsx
+++ b/src/layouts/AppShell.tsx
@@ -16,6 +16,7 @@ export type ShellNavItem = {
   label: string;
   to: string;
   icon: ComponentType<{ size?: number; strokeWidth?: number }>;
+  pending?: boolean;
 };
 
 export type ShellNavSection = {
@@ -84,9 +85,10 @@ export function AppShell({
                   const Icon = item.icon;
 
                   return (
-                    <NavLink key={item.to} to={item.to} end title={item.label}>
+                    <NavLink key={item.to} to={item.to} end title={item.pending ? `${item.label}（待开发）` : item.label}>
                       <Icon size={17} strokeWidth={2.1} />
-                      <span>{item.label}</span>
+                      <span className="side-nav-label">{item.label}</span>
+                      {item.pending ? <span className="dev-status-badge">待开发</span> : null}
                     </NavLink>
                   );
                 })}
diff --git a/src/layouts/ClientLayout.tsx b/src/layouts/ClientLayout.tsx
index f11cc4a..ebd1255 100644
--- a/src/layouts/ClientLayout.tsx
+++ b/src/layouts/ClientLayout.tsx
@@ -46,20 +46,20 @@ export function ClientLayout() {
         {
           title: '彩信服务',
           items: [
-            { label: '签名报备', to: '/client/mms-signatures', icon: PenLine },
-            { label: '彩信模板管理', to: '/client/mms-templates', icon: ImageIcon },
-            { label: '发送彩信', to: '/client/mms-send', icon: MessageSquareText },
-            { label: '查看批量任务', to: '/client/mms-batch-tasks', icon: ClipboardList },
-            { label: '彩信发送详情', to: '/client/mms-send-detail', icon: ClipboardList },
-            { label: '查看上行彩信', to: '/client/mms-uplink-messages', icon: ImageIcon },
+            { label: '签名报备', to: '/client/mms-signatures', icon: PenLine, pending: true },
+            { label: '彩信模板管理', to: '/client/mms-templates', icon: ImageIcon, pending: true },
+            { label: '发送彩信', to: '/client/mms-send', icon: MessageSquareText, pending: true },
+            { label: '查看批量任务', to: '/client/mms-batch-tasks', icon: ClipboardList, pending: true },
+            { label: '彩信发送详情', to: '/client/mms-send-detail', icon: ClipboardList, pending: true },
+            { label: '查看上行彩信', to: '/client/mms-uplink-messages', icon: ImageIcon, pending: true },
           ],
         },
         {
           title: '账户',
           items: [
-            { label: '充值套餐', to: '/client/billing', icon: BadgeDollarSign },
-            { label: '账单流水', to: '/client/invoices', icon: ReceiptText },
-            { label: '账号设置', to: '/client/settings', icon: Settings },
+            { label: '充值套餐', to: '/client/billing', icon: BadgeDollarSign, pending: true },
+            { label: '账单流水', to: '/client/invoices', icon: ReceiptText, pending: true },
+            { label: '账号设置', to: '/client/settings', icon: Settings, pending: true },
           ],
         },
         {
diff --git a/src/styles/components.css b/src/styles/components.css
index 550e933..181c169 100644
--- a/src/styles/components.css
+++ b/src/styles/components.css
@@ -646,10 +646,13 @@
 }
 
 .ui-tabs__tab {
+  align-items: center;
   background: transparent;
   border: 0;
   color: var(--color-text-muted);
+  display: inline-flex;
   font-weight: var(--font-weight-semibold);
+  gap: var(--space-2);
   padding: 0 var(--space-2) var(--space-3);
   position: relative;
 }
diff --git a/src/styles/global.css b/src/styles/global.css
index 9e55f52..5534147 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -293,12 +293,33 @@ h3 {
   min-width: 0;
 }
 
-.side-nav a span {
+.side-nav-label {
+  flex: 1;
+  min-width: 0;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
+.dev-status-badge {
+  background: var(--color-warning-soft);
+  border: 1px solid color-mix(in srgb, var(--color-warning) 24%, transparent);
+  border-radius: 999px;
+  color: var(--color-warning);
+  flex: 0 0 auto;
+  font-size: 11px;
+  font-weight: var(--font-weight-semibold);
+  line-height: 1;
+  padding: 3px 6px;
+  white-space: nowrap;
+}
+
+.ui-tabs__tab {
+  align-items: center;
+  display: inline-flex;
+  gap: var(--space-2);
+}
+
 .side-nav a.active,
 .side-nav a:hover {
   background: var(--color-selected-soft);