diff --git a/app/api/controller/Notice.php b/app/api/controller/Notice.php
index ddea833..7f703a9 100644
--- a/app/api/controller/Notice.php
+++ b/app/api/controller/Notice.php
@@ -11,10 +11,10 @@ use support\Response;
 
 class Notice extends MobileBase
 {
-    /** 公告列表：公开接口，无需 auth-token / user-token */
-    protected array $noNeedLogin = ['noticeList'];
+    /** 公告列表/详情：公开接口，无需 auth-token / user-token */
+    protected array $noNeedLogin = ['noticeList', 'noticeDetail'];
 
-    protected array $noNeedAuthToken = ['noticeList'];
+    protected array $noNeedAuthToken = ['noticeList', 'noticeDetail'];
 
     public function noticeList(Request $request): Response
     {
@@ -45,21 +45,38 @@ class Notice extends MobileBase
 
         $list = [];
         foreach ($paginate->items() as $row) {
-            $isPopout = $this->intValue($row->notice_type, 0) === 1;
-            $list[] = [
-                'notice_id' => $row->id,
-                'title' => $row->title,
-                'content' => $row->content,
-                'notice_type' => $isPopout ? 'popout' : 'silent',
-                'must_confirm' => $isPopout,
-                'is_read' => $isPopout && isset($readMap[$row->id]),
-                'publish_time' => $row->publish_at,
-            ];
+            $list[] = $this->formatNoticeItem($row, $readMap);
         }
 
         return $this->mobileSuccess(['list' => $list]);
     }
 
+    public function noticeDetail(Request $request): Response
+    {
+        $response = $this->initializeMobile($request);
+        if ($response !== null) {
+            return $response;
+        }
+        $noticeId = $this->resolveNoticeId($request);
+        if ($noticeId < 1) {
+            return $this->mobileError(1001, 'Missing parameters');
+        }
+        $notice = OperationNotice::where('id', $noticeId)->where('status', 1)->find();
+        if (!$notice) {
+            return $this->mobileError(2004, 'Notice does not exist');
+        }
+
+        $readMap = [];
+        $userId = ($this->auth && $this->auth->isLogin()) ? $this->auth->id : 0;
+        $isPopout = $this->intValue($notice->notice_type, 0) === 1;
+        if ($userId > 0 && $isPopout) {
+            $readRow = UserNoticeRead::where('user_id', $userId)->where('notice_id', $noticeId)->column('notice_id');
+            $readMap = array_flip($readRow);
+        }
+
+        return $this->mobileSuccess($this->formatNoticeItem($notice, $readMap));
+    }
+
     public function noticeConfirm(Request $request): Response
     {
         $response = $this->initializeMobile($request);
@@ -110,5 +127,36 @@ class Notice extends MobileBase
         }
         return $result;
     }
+
+    /**
+     * 兼容 notice_id 与部分客户端使用的 n 参数。
+     */
+    private function resolveNoticeId(Request $request): int
+    {
+        $noticeId = $this->intValue($request->input('notice_id', 0), 0);
+        if ($noticeId > 0) {
+            return $noticeId;
+        }
+
+        return $this->intValue($request->input('n', 0), 0);
+    }
+
+    /**
+     * @param array<int, int> $readMap notice_id => index（来自 array_flip）
+     */
+    private function formatNoticeItem(OperationNotice $row, array $readMap = []): array
+    {
+        $isPopout = $this->intValue($row->notice_type, 0) === 1;
+
+        return [
+            'notice_id' => $row->id,
+            'title' => $row->title,
+            'content' => $row->content,
+            'notice_type' => $isPopout ? 'popout' : 'silent',
+            'must_confirm' => $isPopout,
+            'is_read' => $isPopout && isset($readMap[$row->id]),
+            'publish_time' => $row->publish_at,
+        ];
+    }
 }
 
diff --git a/config/route.php b/config/route.php
index 04db670..d84d9de 100644
--- a/config/route.php
+++ b/config/route.php
@@ -153,6 +153,7 @@ Route::add(['GET', 'POST'], '/api/finance/withdrawDetail', [\app\api\controller\
 Route::add(['GET', 'POST'], '/api/finance/withdrawList', [\app\api\controller\Finance::class, 'withdrawList']);
 
 Route::get('/api/notice/noticeList', [\app\api\controller\Notice::class, 'noticeList']);
+Route::get('/api/notice/noticeDetail', [\app\api\controller\Notice::class, 'noticeDetail']);
 Route::get('/api/notice/noticeConfirm', [\app\api\controller\Notice::class, 'noticeConfirm']);
 
 // ==================== Admin 路由 ====================