diff --git a/lib/views/items/techno_widget_list_item.dart b/lib/views/items/techno_widget_list_item.dart
index 8ceb998..dffd5d4 100644
--- a/lib/views/items/techno_widget_list_item.dart
+++ b/lib/views/items/techno_widget_list_item.dart
@@ -94,13 +94,13 @@ class TechnoWidgetListItem extends StatelessWidget {
                 color: Colors.transparent,
                 child: CircleText(
                   text: data.name,
-                  size: 60,
+                  size: 50,
                   color: itemColor,
                 ),
               )
             : CircleImage(
                 image: data.image,
-                size: 55,
+                size: 50,
               ),
       );
 
diff --git a/lib/views/pages/search/app_search_bar.dart b/lib/views/pages/search/app_search_bar.dart
index 3ab41c4..f63dfa2 100644
--- a/lib/views/pages/search/app_search_bar.dart
+++ b/lib/views/pages/search/app_search_bar.dart
@@ -27,7 +27,7 @@ class _AppSearchBarState extends State<AppSearchBar> {
               filled: true,//填满
               fillColor: Colors.white,//白色
               prefixIcon:  Icon(Icons.search),//前标
-              contentPadding: EdgeInsets.only(top: 15),//调整文字边距
+              contentPadding: EdgeInsets.only(top: 4),//调整文字边距
               border: UnderlineInputBorder(
                 borderSide: BorderSide.none,//去边线
                 borderRadius: BorderRadius.all(Radius.circular(15)),
diff --git a/macos/Podfile.lock b/macos/Podfile.lock
index 4073b2e..eddd319 100644
--- a/macos/Podfile.lock
+++ b/macos/Podfile.lock
@@ -17,7 +17,7 @@ PODS:
     - FlutterMacOS
 
 DEPENDENCIES:
-  - FlutterMacOS (from `Flutter/ephemeral/.symlinks/flutter/darwin-x64`)
+  - FlutterMacOS (from `Flutter/ephemeral/.symlinks/flutter/darwin-x64-release`)
   - path_provider (from `Flutter/ephemeral/.symlinks/plugins/path_provider/macos`)
   - path_provider_macos (from `Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos`)
   - shared_preferences (from `Flutter/ephemeral/.symlinks/plugins/shared_preferences/macos`)
@@ -32,7 +32,7 @@ SPEC REPOS:
 
 EXTERNAL SOURCES:
   FlutterMacOS:
-    :path: Flutter/ephemeral/.symlinks/flutter/darwin-x64
+    :path: Flutter/ephemeral/.symlinks/flutter/darwin-x64-release
   path_provider:
     :path: Flutter/ephemeral/.symlinks/plugins/path_provider/macos
   path_provider_macos:
diff --git a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png b/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
deleted file mode 100644
index 3c4935a..0000000
Binary files a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png and /dev/null differ
diff --git a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png b/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
index ed4cc16..fe2a961 100644
Binary files a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png and b/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png differ
diff --git a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png b/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
deleted file mode 100644
index 483be61..0000000
Binary files a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png and /dev/null differ
diff --git a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png b/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
deleted file mode 100644
index bcbf36d..0000000
Binary files a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png and /dev/null differ
diff --git a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png b/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
deleted file mode 100644
index 9c0a652..0000000
Binary files a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png and /dev/null differ
diff --git a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png b/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
deleted file mode 100644
index e71a726..0000000
Binary files a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png and /dev/null differ
diff --git a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png b/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
deleted file mode 100644
index 8a31fe2..0000000
Binary files a/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png and /dev/null differ
diff --git a/pubspec.lock b/pubspec.lock
index 537d2d9..7bc7136 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -7,7 +7,7 @@ packages:
       name: async
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.5.0-nullsafety.1"
+    version: "2.5.0-nullsafety.3"
   bloc:
     dependency: transitive
     description:
@@ -21,35 +21,35 @@ packages:
       name: boolean_selector
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.0-nullsafety.1"
+    version: "2.1.0-nullsafety.3"
   characters:
     dependency: transitive
     description:
       name: characters
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.1.0-nullsafety.3"
+    version: "1.1.0-nullsafety.5"
   charcode:
     dependency: transitive
     description:
       name: charcode
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0-nullsafety.3"
   clock:
     dependency: transitive
     description:
       name: clock
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "1.1.0-nullsafety.3"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.15.0-nullsafety.3"
+    version: "1.15.0-nullsafety.5"
   convert:
     dependency: transitive
     description:
@@ -77,7 +77,7 @@ packages:
       name: fake_async
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0-nullsafety.3"
   ffi:
     dependency: transitive
     description:
@@ -134,21 +134,21 @@ packages:
       name: js
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.6.3-nullsafety.1"
+    version: "0.6.3-nullsafety.3"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.12.10-nullsafety.1"
+    version: "0.12.10-nullsafety.3"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.3.0-nullsafety.4"
+    version: "1.3.0-nullsafety.6"
   moor:
     dependency: transitive
     description:
@@ -176,7 +176,7 @@ packages:
       name: path
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.8.0-nullsafety.1"
+    version: "1.8.0-nullsafety.3"
   path_provider:
     dependency: "direct main"
     description:
@@ -321,7 +321,7 @@ packages:
       name: source_span
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.8.0-nullsafety.2"
+    version: "1.8.0-nullsafety.4"
   sqflite:
     dependency: "direct main"
     description:
@@ -363,21 +363,21 @@ packages:
       name: stack_trace
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.10.0-nullsafety.2"
+    version: "1.10.0-nullsafety.6"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.0-nullsafety.1"
+    version: "2.1.0-nullsafety.3"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "1.1.0-nullsafety.3"
   synchronized:
     dependency: transitive
     description:
@@ -391,14 +391,14 @@ packages:
       name: term_glyph
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0-nullsafety.3"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.2.19-nullsafety.2"
+    version: "0.2.19-nullsafety.6"
   toggle_rotate:
     dependency: "direct main"
     description:
@@ -412,7 +412,7 @@ packages:
       name: typed_data
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.3.0-nullsafety.3"
+    version: "1.3.0-nullsafety.5"
   url_launcher:
     dependency: "direct main"
     description:
@@ -447,7 +447,7 @@ packages:
       name: vector_math
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.0-nullsafety.3"
+    version: "2.1.0-nullsafety.5"
   win32:
     dependency: transitive
     description:
@@ -463,5 +463,5 @@ packages:
     source: hosted
     version: "0.1.0"
 sdks:
-  dart: ">=2.10.0-110 <=2.11.0-213.0.dev"
+  dart: ">=2.12.0-0.0 <3.0.0"
   flutter: ">=1.12.13+hotfix.5 <2.0.0"
diff --git a/windows/runner/resources/app_icon.ico b/windows/runner/resources/app_icon.ico
index c04e20c..fe2a961 100644
Binary files a/windows/runner/resources/app_icon.ico and b/windows/runner/resources/app_icon.ico differ