diff --git a/dimensionhub.xcodeproj/project.pbxproj b/dimensionhub.xcodeproj/project.pbxproj
index 305c8e1..e49c2aa 100644
--- a/dimensionhub.xcodeproj/project.pbxproj
+++ b/dimensionhub.xcodeproj/project.pbxproj
@@ -420,8 +420,7 @@
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;
-				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
-				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
+				INFOPLIST_KEY_UISupportedInterfaceOrientations = UIInterfaceOrientationPortrait;
 				IPHONEOS_DEPLOYMENT_TARGET = 17.6;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
@@ -455,8 +454,7 @@
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;
-				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
-				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
+				INFOPLIST_KEY_UISupportedInterfaceOrientations = UIInterfaceOrientationPortrait;
 				IPHONEOS_DEPLOYMENT_TARGET = 17.6;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
diff --git a/dimensionhub/Views/IndexView.swift b/dimensionhub/Views/IndexView.swift
index 7fff574..bc98052 100644
--- a/dimensionhub/Views/IndexView.swift
+++ b/dimensionhub/Views/IndexView.swift
@@ -84,6 +84,13 @@ final class IndexModel {
         self.isLoaded = true
     }
     
+    func setFixedDrameGroup(groupId: String) {
+        if let newFixedDramaGroup = self.updateDramaGroups.first(where: {$0.group_id == groupId}),
+           newFixedDramaGroup.group_id != self.fixedDramaGroup?.group_id {
+            self.fixedDramaGroup = newFixedDramaGroup
+        }
+    }
+    
     @MainActor
     func loadMoreUpdateDramas(userId: String, mode: API.LoadMode) async {
         // 按照id来判断不一定正确，需要借助其他值
@@ -132,6 +139,7 @@ final class IndexModel {
         let response = await API.loadDateUpdateDramas(userId: userId, date: date, as: [UpdateDramaGroup].self)
         if case let .result(groups) = response {
             self.updateDramaGroups = groups
+            self.fixedDramaGroup = groups.first
         }
     }
     
@@ -379,8 +387,14 @@ extension IndexView {
                     self.isPrevLoading = false
                 }
                 .overlay(alignment: .topTrailing) {
-                    HStack {
-                        Text("🔍")
+                    HStack(alignment: .center) {
+                        NavigationLink {
+                            SearchView()
+                        } label: {
+                            Image(systemName: "magnifyingglass")
+                                .font(.system(size: 20))
+                        }
+
                         Spacer()
                         if let fixedDramaGroup = indexModel.fixedDramaGroup {
                             Text(fixedDramaGroup.group_name)
@@ -393,7 +407,7 @@ extension IndexView {
                                 }
                         }
                     }
-                    .padding(8)
+                    .padding([.top, .bottom], 8)
                     .background(.white)
                 }
             }
@@ -411,6 +425,12 @@ extension IndexView {
             .task {
                 await self.indexModel.loadData(userId: self.userId)
             }
+            .onPreferenceChange(DramaGroupElementPreferenceKey.self) { frames in
+                let visibleFrames = frames.filter { $0.value >= 0}
+                if let minFrame = visibleFrames.min(by: { $0.value <= $1.value}) {
+                    indexModel.setFixedDrameGroup(groupId: minFrame.key)
+                }
+            }
         }
     }
     
@@ -432,14 +452,6 @@ extension IndexView {
                             onTap()
                         }
                 }
-                .background(GeometryReader {
-                    geometry in
-                    Color.clear.onChange(of: geometry.frame(in: .named("indexScrollView")).minY) {_, y in
-                        if abs(y) <= 5 {
-                            model.fixedDramaGroup = group
-                        }
-                    }
-                })
                 
                 ForEach(group.items, id: \.id) { item in
                     NavigationLink(destination: DetailView(id: item.id)) {
@@ -481,12 +493,32 @@ extension IndexView {
                             .cornerRadius(5)
                             .padding(8)
                         }
+                        .background(GeometryReader {
+                            geometry in
+                            
+                            let height = geometry.size.height
+                            let minY = geometry.frame(in: .named("indexScrollView")).minY
+                            let y = minY >= 0 ? minY : minY + height
+                            
+                            Color.clear
+                                .preference(key: DramaGroupElementPreferenceKey.self, value: [ group.group_id : y])
+                            
+                        })
                     }
                 }
             }
         }
     }
     
+    // 元素的坐标的距离变化, [groupId : minY]
+    struct DramaGroupElementPreferenceKey: PreferenceKey {
+        static var defaultValue: [String: CGFloat] = [:]
+        
+        static func reduce(value: inout [String: CGFloat], nextValue: () -> [String: CGFloat]) {
+            value.merge(nextValue()) { $1 }
+        }
+    }
+    
 }
 
 #Preview {
diff --git a/dimensionhub/Views/SearchView.swift b/dimensionhub/Views/SearchView.swift
new file mode 100644
index 0000000..658d288
--- /dev/null
+++ b/dimensionhub/Views/SearchView.swift
@@ -0,0 +1,18 @@
+//
+//  SearchView.swift
+//  dimensionhub
+//
+//  Created by 安礼成 on 2025/4/1.
+//
+
+import SwiftUI
+
+struct SearchView: View {
+    var body: some View {
+        Text(/*@START_MENU_TOKEN@*/"Hello, World!"/*@END_MENU_TOKEN@*/)
+    }
+}
+
+#Preview {
+    SearchView()
+}
diff --git a/dimensionhub/dimensionhubApp.swift b/dimensionhub/dimensionhubApp.swift
index 7a1f2df..1d1b4b8 100644
--- a/dimensionhub/dimensionhubApp.swift
+++ b/dimensionhub/dimensionhubApp.swift
@@ -44,5 +44,6 @@ struct dimensionhubApp: App {
             .tint(.black)
         }
         .modelContainer(sharedModelContainer)
+    
     }
 }