diff --git a/build.gradle.kts b/build.gradle.kts
index 6d280a8..598b4c3 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -36,9 +36,7 @@ dependencies {
     implementation("androidx.appcompat:appcompat:1.6.1")
     implementation("com.google.android.material:material:1.9.0")
     implementation("androidx.constraintlayout:constraintlayout:2.1.4")
-    implementation("androidx.cardview:cardview:1.0.0")
-    implementation("androidx.navigation:navigation-fragment:2.6.0")
-    implementation("androidx.navigation:navigation-ui:2.6.0")
+
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.ext:junit:1.1.5")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
diff --git a/src/main/java/com/hnucm/c202201020427/FirstFragment.java b/src/main/java/com/hnucm/c202201020427/FirstFragment.java
deleted file mode 100644
index 7a100a9..0000000
--- a/src/main/java/com/hnucm/c202201020427/FirstFragment.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package com.hnucm.c202201020427;
-
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-
-import androidx.annotation.NonNull;
-import androidx.fragment.app.Fragment;
-import androidx.navigation.fragment.NavHostFragment;
-
-import com.hnucm.c202201020427.databinding.FragmentFirstBinding;
-
-public class FirstFragment extends Fragment {
-
-    private FragmentFirstBinding binding;
-
-    @Override
-    public View onCreateView(
-            LayoutInflater inflater, ViewGroup container,
-            Bundle savedInstanceState
-    ) {
-
-        binding = FragmentFirstBinding.inflate(inflater, container, false);
-        return binding.getRoot();
-
-    }
-
-    public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
-        super.onViewCreated(view, savedInstanceState);
-
-        binding.buttonFirst.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View view) {
-                NavHostFragment.findNavController(FirstFragment.this)
-                        .navigate(R.id.action_FirstFragment_to_SecondFragment);
-            }
-        });
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        binding = null;
-    }
-
-}
\ No newline at end of file
diff --git a/src/main/java/com/hnucm/c202201020427/SecondFragment.java b/src/main/java/com/hnucm/c202201020427/SecondFragment.java
deleted file mode 100644
index abf2d06..0000000
--- a/src/main/java/com/hnucm/c202201020427/SecondFragment.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package com.hnucm.c202201020427;
-
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-
-import androidx.annotation.NonNull;
-import androidx.fragment.app.Fragment;
-import androidx.navigation.fragment.NavHostFragment;
-
-import com.hnucm.c202201020427.databinding.FragmentSecondBinding;
-
-public class SecondFragment extends Fragment {
-
-    private FragmentSecondBinding binding;
-
-    @Override
-    public View onCreateView(
-            LayoutInflater inflater, ViewGroup container,
-            Bundle savedInstanceState
-    ) {
-
-        binding = FragmentSecondBinding.inflate(inflater, container, false);
-        return binding.getRoot();
-
-    }
-
-    public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
-        super.onViewCreated(view, savedInstanceState);
-
-        binding.buttonSecond.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View view) {
-                NavHostFragment.findNavController(SecondFragment.this)
-                        .navigate(R.id.action_SecondFragment_to_FirstFragment);
-            }
-        });
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        binding = null;
-    }
-
-}
\ No newline at end of file
diff --git a/src/main/res/drawable/img_53.png b/src/main/res/drawable/img_53.png
new file mode 100644
index 0000000..9b9dafe
Binary files /dev/null and b/src/main/res/drawable/img_53.png differ
diff --git a/src/main/res/drawable/img_54.png b/src/main/res/drawable/img_54.png
new file mode 100644
index 0000000..8c6f1b4
Binary files /dev/null and b/src/main/res/drawable/img_54.png differ
diff --git a/src/main/res/layout/activity_fankui.xml b/src/main/res/layout/activity_fankui.xml
index 3e22032..807a915 100644
--- a/src/main/res/layout/activity_fankui.xml
+++ b/src/main/res/layout/activity_fankui.xml
@@ -97,4 +97,15 @@
         app:layout_constraintBottom_toBottomOf="@+id/imageView43"
         app:layout_constraintEnd_toEndOf="@+id/imageView43"
         app:layout_constraintStart_toStartOf="@+id/imageView43" />
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="45dp"
+        android:layout_height="22dp"
+        android:layout_marginStart="340dp"
+        android:layout_marginBottom="105dp"
+        android:background="#FDFEFD"
+        app:layout_constraintBottom_toBottomOf="@+id/imageView43"
+        app:layout_constraintStart_toStartOf="@+id/imageView43">
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/src/main/res/layout/activity_zhanghaokefu.xml b/src/main/res/layout/activity_zhanghaokefu.xml
index caf2a10..ac4a7e5 100644
--- a/src/main/res/layout/activity_zhanghaokefu.xml
+++ b/src/main/res/layout/activity_zhanghaokefu.xml
@@ -4,42 +4,48 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="#EEEEEE"
     tools:context=".zhanghaokefu">
 
     <ImageView
         android:id="@+id/imageView63"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:layout_height="400dp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:srcCompat="@drawable/img_52" />
+        app:srcCompat="@drawable/img_53" />
+
+    <ImageView
+        android:id="@+id/imageView64"
+        android:layout_width="match_parent"
+        android:layout_height="80dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:srcCompat="@drawable/img_54" />
 
     <EditText
         android:id="@+id/editTextText10"
         android:layout_width="260dp"
         android:layout_height="37dp"
-        android:layout_marginStart="22dp"
-        android:layout_marginTop="811dp"
-        android:layout_marginBottom="66dp"
+        android:layout_marginStart="18dp"
+        android:layout_marginTop="13dp"
         android:background="#FEFEFE"
         android:ems="10"
         android:hint="请简单描述您的问题"
         android:inputType="text"
-        app:layout_constraintBottom_toBottomOf="@+id/imageView63"
-        app:layout_constraintStart_toStartOf="@+id/imageView63"
-        app:layout_constraintTop_toTopOf="@+id/imageView63" />
+        app:layout_constraintStart_toStartOf="@+id/imageView64"
+        app:layout_constraintTop_toTopOf="@+id/imageView64" />
 
     <androidx.constraintlayout.widget.ConstraintLayout
         android:id="@+id/constraintLayout70"
         android:layout_width="40dp"
         android:layout_height="40dp"
-        android:layout_marginTop="46dp"
-        android:layout_marginEnd="371dp"
-        app:layout_constraintEnd_toEndOf="@+id/imageView63"
+        android:layout_marginTop="10dp"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="@+id/imageView63">
+        app:layout_constraintTop_toTopOf="parent">
 
     </androidx.constraintlayout.widget.ConstraintLayout>
+
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/src/main/res/layout/content_shebeiguanli.xml b/src/main/res/layout/content_shebeiguanli.xml
deleted file mode 100644
index 455f39f..0000000
--- a/src/main/res/layout/content_shebeiguanli.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    app:layout_behavior="@string/appbar_scrolling_view_behavior">
-
-    <fragment
-        android:id="@+id/nav_host_fragment_content_shebeiguanli"
-        android:name="androidx.navigation.fragment.NavHostFragment"
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        app:defaultNavHost="true"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:navGraph="@navigation/nav_graph" />
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/src/main/res/layout/fragment_first.xml b/src/main/res/layout/fragment_first.xml
deleted file mode 100644
index 44baecd..0000000
--- a/src/main/res/layout/fragment_first.xml
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.core.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".FirstFragment">
-
-    <androidx.constraintlayout.widget.ConstraintLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:padding="16dp">
-
-        <Button
-            android:id="@+id/button_first"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/next"
-            app:layout_constraintBottom_toTopOf="@id/textview_first"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toTopOf="parent" />
-
-        <TextView
-            android:id="@+id/textview_first"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="16dp"
-            android:text="@string/lorem_ipsum"
-            app:layout_constraintBottom_toBottomOf="parent"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/button_first" />
-    </androidx.constraintlayout.widget.ConstraintLayout>
-</androidx.core.widget.NestedScrollView>
\ No newline at end of file
diff --git a/src/main/res/layout/fragment_second.xml b/src/main/res/layout/fragment_second.xml
deleted file mode 100644
index d074310..0000000
--- a/src/main/res/layout/fragment_second.xml
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.core.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".SecondFragment">
-
-    <androidx.constraintlayout.widget.ConstraintLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:padding="16dp">
-
-        <Button
-            android:id="@+id/button_second"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/previous"
-            app:layout_constraintBottom_toTopOf="@id/textview_second"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toTopOf="parent" />
-
-        <TextView
-            android:id="@+id/textview_second"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="16dp"
-            android:text="@string/lorem_ipsum"
-            app:layout_constraintBottom_toBottomOf="parent"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/button_second" />
-    </androidx.constraintlayout.widget.ConstraintLayout>
-</androidx.core.widget.NestedScrollView>
\ No newline at end of file
diff --git a/src/main/res/navigation/nav_graph.xml b/src/main/res/navigation/nav_graph.xml
deleted file mode 100644
index f3314c1..0000000
--- a/src/main/res/navigation/nav_graph.xml
+++ /dev/null
@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<navigation xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/nav_graph"
-    app:startDestination="@id/FirstFragment">
-
-    <fragment
-        android:id="@+id/FirstFragment"
-        android:name="com.hnucm.c202201020427.FirstFragment"
-        android:label="@string/first_fragment_label"
-        tools:layout="@layout/fragment_first">
-
-        <action
-            android:id="@+id/action_FirstFragment_to_SecondFragment"
-            app:destination="@id/SecondFragment" />
-    </fragment>
-    <fragment
-        android:id="@+id/SecondFragment"
-        android:name="com.hnucm.c202201020427.SecondFragment"
-        android:label="@string/second_fragment_label"
-        tools:layout="@layout/fragment_second">
-
-        <action
-            android:id="@+id/action_SecondFragment_to_FirstFragment"
-            app:destination="@id/FirstFragment" />
-    </fragment>
-</navigation>
\ No newline at end of file