diff --git a/lib/ui/home/home_countdown_dialog_ui.dart b/lib/ui/home/home_countdown_dialog_ui.dart
new file mode 100644
index 0000000..9e1e035
--- /dev/null
+++ b/lib/ui/home/home_countdown_dialog_ui.dart
@@ -0,0 +1,98 @@
+import 'package:fluent_ui/fluent_ui.dart';
+import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:starcitizen_doctor/ui/home/home_ui_model.dart';
+import 'package:starcitizen_doctor/widgets/widgets.dart';
+
+class HomeCountdownDialogUI extends HookConsumerWidget {
+  const HomeCountdownDialogUI({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final homeState = ref.watch(homeUIModelProvider);
+    return ContentDialog(
+      constraints:
+          BoxConstraints(maxWidth: MediaQuery.of(context).size.width * .65),
+      title: Row(
+        children: [
+          IconButton(
+              icon: const Icon(
+                FluentIcons.back,
+                size: 22,
+              ),
+              onPressed: () {
+                Navigator.of(context).pop();
+              }),
+          const SizedBox(width: 12),
+          const Text("节日倒计时"),
+        ],
+      ),
+      content: homeState.countdownFestivalListData == null
+          ? makeLoading(context)
+          : SingleChildScrollView(
+              child: Padding(
+                padding: const EdgeInsets.only(left: 12, right: 12),
+                child: Column(
+                  children: [
+                    AlignedGridView.count(
+                      crossAxisCount: 3,
+                      mainAxisSpacing: 12,
+                      crossAxisSpacing: 12,
+                      itemCount: homeState.countdownFestivalListData!.length,
+                      shrinkWrap: true,
+                      itemBuilder: (BuildContext context, int index) {
+                        final item =
+                            homeState.countdownFestivalListData![index];
+                        return Container(
+                          decoration: BoxDecoration(
+                            color: FluentTheme.of(context).cardColor,
+                            borderRadius: BorderRadius.circular(12),
+                          ),
+                          child: Padding(
+                            padding: const EdgeInsets.all(12),
+                            child: Row(
+                              children: [
+                                if (item.icon != null && item.icon != "") ...[
+                                  ClipRRect(
+                                    borderRadius: BorderRadius.circular(1000),
+                                    child: Image.asset(
+                                      "assets/countdown/${item.icon}",
+                                      width: 38,
+                                      height: 38,
+                                    ),
+                                  ),
+                                  const SizedBox(width: 12),
+                                ] else
+                                  const SizedBox(width: 50),
+                                Column(
+                                  crossAxisAlignment: CrossAxisAlignment.start,
+                                  children: [
+                                    Text(
+                                      "${item.name}",
+                                    ),
+                                    CountdownTimeText(
+                                      targetTime:
+                                          DateTime.fromMillisecondsSinceEpoch(
+                                              item.time ?? 0),
+                                    )
+                                  ],
+                                )
+                              ],
+                            ),
+                          ),
+                        );
+                      },
+                    ),
+                    const SizedBox(height: 12),
+                    Text(
+                      "* 以上节日日期由人工收录、维护，可能存在错误，欢迎反馈！",
+                      style: TextStyle(
+                          fontSize: 13, color: Colors.white.withOpacity(.3)),
+                    )
+                  ],
+                ),
+              ),
+            ),
+    );
+  }
+}
diff --git a/lib/ui/home/home_ui.dart b/lib/ui/home/home_ui.dart
index 05f8b14..051532e 100644
--- a/lib/ui/home/home_ui.dart
+++ b/lib/ui/home/home_ui.dart
@@ -10,6 +10,7 @@ import 'package:starcitizen_doctor/common/helper/system_helper.dart';
 import 'package:starcitizen_doctor/widgets/widgets.dart';
 import 'package:url_launcher/url_launcher_string.dart';
 
+import 'home_countdown_dialog_ui.dart';
 import 'home_ui_model.dart';
 
 class HomeUI extends HookConsumerWidget {
@@ -36,7 +37,7 @@ class HomeUI extends HookConsumerWidget {
                         ? null
                         : Button(
                             child: const Text('查看详情'),
-                            onPressed: () => _showPlacard(),
+                            onPressed: () => _showPlacard(context, homeState),
                           ),
                     onClose: homeState.appPlacardData?.alwaysShow == true
                         ? null
@@ -653,7 +654,7 @@ class HomeUI extends HookConsumerWidget {
       borderRadius: BorderRadius.circular(12),
       shadowConfig: const ShadowConfig(disable: true),
       child: GestureDetector(
-        onTap: () => _onTapFestival(),
+        onTap: () => _onTapFestival(context),
         child: Container(
             width: width + 24,
             decoration: BoxDecoration(color: FluentTheme.of(context).cardColor),
@@ -722,9 +723,28 @@ class HomeUI extends HookConsumerWidget {
     );
   }
 
-  _showPlacard() {}
+  _showPlacard(BuildContext context, HomeUIModelState homeState) {
+    switch (homeState.appPlacardData?.linkType) {
+      case "external":
+        launchUrlString(homeState.appPlacardData?.link);
+        return;
+      case "doc":
+        // showDialog(
+        //     context: context,
+        //     builder: (context) {
+        //       return BaseUIContainer(
+        //           uiCreate: () => MDContentDialogUI(),
+        //           modelCreate: () => MDContentDialogUIModel(
+        //               appPlacardData?.title ?? "公告详情", appPlacardData?.link));
+        //     });
+        return;
+    }
+  }
 
-  _onTapFestival() {}
+  _onTapFestival(BuildContext context) {
+    showDialog(
+        context: context, builder: (context) => const HomeCountdownDialogUI());
+  }
 }
 
 class _HomeItemData {