diff --git a/app/mood/edit.tsx b/app/mood/edit.tsx
index 9ca2eba..d1a1e78 100644
--- a/app/mood/edit.tsx
+++ b/app/mood/edit.tsx
@@ -199,28 +199,36 @@ export default function MoodEditScreen() {
               onValueChange={handleIntensityChange}
               min={1}
               max={10}
-              width={320}
+              width={280}
+              height={12}
             />
           </View>
 
 
           {/* 心情描述 */}
-          {selectedMood && (
-            <View style={styles.descriptionSection}>
-              <Text style={styles.sectionTitle}>心情描述（可选）</Text>
-              <TextInput
-                style={styles.descriptionInput}
-                placeholder="描述一下你的心情..."
-                placeholderTextColor="#777f8c"
-                value={description}
-                onChangeText={setDescription}
-                multiline
-                maxLength={200}
-                textAlignVertical="top"
-              />
-              <Text style={styles.characterCount}>{description.length}/200</Text>
-            </View>
-          )}
+
+          <View style={styles.descriptionSection}>
+            <Text style={styles.sectionTitle}>心情日记</Text>
+            <Text style={styles.diarySubtitle}>记录你的心情，珍藏美好回忆</Text>
+            <TextInput
+              style={styles.descriptionInput}
+              placeholder={`今天的心情如何？
+
+你经历过什么特别的事情吗？
+有什么让你开心的事？
+或者，有什么让你感到困扰？
+
+写下你的感受，让这些时刻成为你珍贵的记忆...`}
+              placeholderTextColor="#a8a8a8"
+              value={description}
+              onChangeText={setDescription}
+              multiline
+              maxLength={1000}
+              textAlignVertical="top"
+            />
+            <Text style={styles.characterCount}>{description.length}/1000</Text>
+          </View>
+
         </ScrollView>
 
         {/* 底部按钮 */}
@@ -242,7 +250,7 @@ export default function MoodEditScreen() {
                 onPress={handleDelete}
                 disabled={isDeleting}
               >
-                <Ionicons name="trash-outline" size={24} color="#f95555" />
+                <Ionicons name="trash-outline" size={20} color="#f95555" />
               </TouchableOpacity>
             )}
           </View>
@@ -265,21 +273,21 @@ const styles = StyleSheet.create({
   },
   decorativeCircle1: {
     position: 'absolute',
-    top: 40,
-    right: 20,
-    width: 60,
-    height: 60,
-    borderRadius: 30,
+    top: 30,
+    right: 15,
+    width: 45,
+    height: 45,
+    borderRadius: 22.5,
     backgroundColor: '#7a5af8',
-    opacity: 0.08,
+    opacity: 0.06,
   },
   decorativeCircle2: {
     position: 'absolute',
-    bottom: -15,
-    left: -15,
-    width: 40,
-    height: 40,
-    borderRadius: 20,
+    bottom: -10,
+    left: -10,
+    width: 30,
+    height: 30,
+    borderRadius: 15,
     backgroundColor: '#7a5af8',
     opacity: 0.04,
   },
@@ -292,38 +300,38 @@ const styles = StyleSheet.create({
   },
   dateSection: {
     backgroundColor: 'rgba(255,255,255,0.95)',
-    margin: 16,
-    borderRadius: 20,
-    padding: 20,
+    margin: 12,
+    borderRadius: 16,
+    padding: 16,
     alignItems: 'center',
     shadowColor: '#7a5af8',
-    shadowOffset: { width: 0, height: 4 },
-    shadowOpacity: 0.1,
-    shadowRadius: 12,
-    elevation: 6,
+    shadowOffset: { width: 0, height: 3 },
+    shadowOpacity: 0.08,
+    shadowRadius: 8,
+    elevation: 4,
   },
   dateTitle: {
-    fontSize: 26,
-    fontWeight: '800',
+    fontSize: 20,
+    fontWeight: '700',
     color: '#192126',
   },
   moodSection: {
     backgroundColor: 'rgba(255,255,255,0.95)',
-    margin: 16,
+    margin: 12,
     marginTop: 0,
-    borderRadius: 20,
-    padding: 20,
+    borderRadius: 16,
+    padding: 16,
     shadowColor: '#7a5af8',
-    shadowOffset: { width: 0, height: 4 },
-    shadowOpacity: 0.1,
-    shadowRadius: 12,
-    elevation: 6,
+    shadowOffset: { width: 0, height: 3 },
+    shadowOpacity: 0.08,
+    shadowRadius: 8,
+    elevation: 4,
   },
   sectionTitle: {
-    fontSize: 20,
-    fontWeight: '700',
+    fontSize: 16,
+    fontWeight: '600',
     color: '#192126',
-    marginBottom: 20,
+    marginBottom: 16,
   },
   moodOptions: {
     flexDirection: 'row',
@@ -333,9 +341,9 @@ const styles = StyleSheet.create({
   moodOption: {
     width: '18%',
     alignItems: 'center',
-    paddingVertical: 16,
-    marginBottom: 12,
-    borderRadius: 16,
+    paddingVertical: 12,
+    marginBottom: 8,
+    borderRadius: 12,
     backgroundColor: 'rgba(122,90,248,0.05)',
     borderWidth: 1,
     borderColor: 'rgba(122,90,248,0.1)',
@@ -346,55 +354,63 @@ const styles = StyleSheet.create({
     borderColor: '#7a5af8',
     shadowColor: '#7a5af8',
     shadowOffset: { width: 0, height: 2 },
-    shadowOpacity: 0.15,
-    shadowRadius: 4,
+    shadowOpacity: 0.12,
+    shadowRadius: 3,
     elevation: 2,
   },
   moodImage: {
-    width: 40,
-    height: 40,
-    marginBottom: 10,
+    width: 32,
+    height: 32,
+    marginBottom: 6,
   },
   moodLabel: {
-    fontSize: 14,
+    fontSize: 12,
     color: '#192126',
-    fontWeight: '600',
+    fontWeight: '500',
   },
   intensitySection: {
     backgroundColor: 'rgba(255,255,255,0.95)',
-    margin: 16,
+    margin: 12,
     marginTop: 0,
-    borderRadius: 20,
-    padding: 20,
+    borderRadius: 16,
+    padding: 16,
     shadowColor: '#7a5af8',
-    shadowOffset: { width: 0, height: 4 },
-    shadowOpacity: 0.1,
-    shadowRadius: 12,
-    elevation: 6,
+    shadowOffset: { width: 0, height: 3 },
+    shadowOpacity: 0.08,
+    shadowRadius: 8,
+    elevation: 4,
   },
 
   descriptionSection: {
     backgroundColor: 'rgba(255,255,255,0.95)',
-    margin: 16,
+    margin: 12,
     marginTop: 0,
-    borderRadius: 20,
-    padding: 20,
+    borderRadius: 16,
+    padding: 16,
     shadowColor: '#7a5af8',
-    shadowOffset: { width: 0, height: 4 },
-    shadowOpacity: 0.1,
-    shadowRadius: 12,
-    elevation: 6,
+    shadowOffset: { width: 0, height: 3 },
+    shadowOpacity: 0.08,
+    shadowRadius: 8,
+    elevation: 4,
+  },
+  diarySubtitle: {
+    fontSize: 13,
+    color: '#666',
+    fontWeight: '500',
+    marginBottom: 12,
+    lineHeight: 18,
   },
   descriptionInput: {
     borderWidth: 1.5,
     borderColor: 'rgba(122,90,248,0.2)',
-    borderRadius: 12,
-    padding: 16,
-    fontSize: 16,
-    minHeight: 100,
+    borderRadius: 10,
+    padding: 12,
+    fontSize: 14,
+    minHeight: 120,
     textAlignVertical: 'top',
     backgroundColor: 'rgba(122,90,248,0.02)',
     color: '#192126',
+    lineHeight: 20,
   },
   characterCount: {
     fontSize: 12,
@@ -404,9 +420,9 @@ const styles = StyleSheet.create({
     fontWeight: '500',
   },
   footer: {
-    padding: 16,
+    padding: 12,
     position: 'absolute',
-    bottom: 24,
+    bottom: 20,
     right: 8,
   },
   buttonRow: {
@@ -416,24 +432,24 @@ const styles = StyleSheet.create({
   },
   saveButton: {
     backgroundColor: '#7a5af8',
-    borderRadius: 12,
-    paddingVertical: 12,
-    paddingHorizontal: 24,
+    borderRadius: 10,
+    paddingVertical: 10,
+    paddingHorizontal: 20,
     alignItems: 'center',
-    marginLeft: 12,
+    marginLeft: 8,
     shadowColor: '#7a5af8',
     shadowOffset: { width: 0, height: 2 },
-    shadowOpacity: 0.2,
-    shadowRadius: 4,
-    elevation: 3,
+    shadowOpacity: 0.15,
+    shadowRadius: 3,
+    elevation: 2,
   },
   deleteIconButton: {
-    width: 36,
-    height: 36,
-    borderRadius: 18,
+    width: 32,
+    height: 32,
+    borderRadius: 16,
     justifyContent: 'center',
     alignItems: 'center',
-    marginLeft: 12,
+    marginLeft: 8,
   },
   deleteButton: {
     backgroundColor: '#f95555',
@@ -454,7 +470,7 @@ const styles = StyleSheet.create({
   },
   saveButtonText: {
     color: '#fff',
-    fontSize: 14,
+    fontSize: 13,
     fontWeight: '600',
   },
   deleteButtonText: {
diff --git a/components/MoodIntensitySlider.tsx b/components/MoodIntensitySlider.tsx
index f32bc1b..b360e2c 100644
--- a/components/MoodIntensitySlider.tsx
+++ b/components/MoodIntensitySlider.tsx
@@ -39,10 +39,11 @@ export default function MoodIntensitySlider({
   width = 320,
   height = 16, // 更粗的进度条
 }: MoodIntensitySliderProps) {
+  const thumbSize = 32; // 合适的触摸区域
   const translateX = useSharedValue(0);
-  const sliderWidth = width - 40; // 减去thumb的宽度
-  const thumbSize = 36; // 更大的thumb
-  
+  const isDragging = useSharedValue(0);
+  const sliderWidth = width - thumbSize; // thumb中心移动的有效范围
+
   // 计算初始位置
   React.useEffect(() => {
     const initialPosition = ((value - min) / (max - min)) * sliderWidth;
@@ -60,16 +61,17 @@ export default function MoodIntensitySlider({
     onStart: (_, context) => {
       context.startX = translateX.value;
       context.lastValue = value;
+      isDragging.value = withSpring(1);
       runOnJS(triggerHaptics)();
     },
     onActive: (event, context) => {
       const newX = context.startX + event.translationX;
       const clampedX = Math.max(0, Math.min(sliderWidth, newX));
       translateX.value = clampedX;
-      
+
       // 计算当前值
       const currentValue = Math.round((clampedX / sliderWidth) * (max - min) + min);
-      
+
       // 当值改变时触发震动和回调
       if (currentValue !== context.lastValue) {
         context.lastValue = currentValue;
@@ -81,28 +83,52 @@ export default function MoodIntensitySlider({
       // 计算最终值并吸附到最近的步长
       const currentValue = Math.round((translateX.value / sliderWidth) * (max - min) + min);
       const snapPosition = ((currentValue - min) / (max - min)) * sliderWidth;
-      
+
       translateX.value = withSpring(snapPosition);
+      isDragging.value = withSpring(0);
       runOnJS(triggerHaptics)();
       runOnJS(onValueChange)(currentValue);
     },
   });
 
   const thumbStyle = useAnimatedStyle(() => {
-    const scale = interpolate(
+    const positionScale = interpolate(
       translateX.value,
       [0, sliderWidth],
-      [1, 1.05]
+      [1, 1.1]
     );
 
+    const dragScale = interpolate(
+      isDragging.value,
+      [0, 1],
+      [1, 1.2]
+    );
+
+    const finalScale = positionScale * dragScale;
+
+    // 让thumb在滑动条中正确居中
+    const thumbPosition = translateX.value + thumbSize / 2;
+
     return {
       transform: [
-        { translateX: translateX.value },
-        { scale: withSpring(scale) }
+        { translateX: thumbPosition },
+        { scale: withSpring(finalScale) }
       ],
     };
   });
 
+  const thumbInnerStyle = useAnimatedStyle(() => {
+    const borderColor = interpolateColor(
+      isDragging.value,
+      [0, 1],
+      ['#7a5af8', '#ff6b6b']
+    );
+
+    return {
+      borderColor: borderColor,
+    };
+  });
+
   const progressStyle = useAnimatedStyle(() => {
     const progressWidth = translateX.value + thumbSize / 2;
     return {
@@ -146,7 +172,7 @@ export default function MoodIntensitySlider({
             end={{ x: 1, y: 0 }}
           />
         </View>
-        
+
         {/* 进度条 - 动态颜色 */}
         <Animated.View style={[styles.progress, { height }, progressStyle, progressColorsStyle]}>
           <LinearGradient
@@ -156,7 +182,7 @@ export default function MoodIntensitySlider({
             end={{ x: 0, y: 0 }}
           />
         </Animated.View>
-        
+
         {/* 可拖拽的thumb */}
         <PanGestureHandler onGestureEvent={gestureHandler}>
           <Animated.View style={[styles.thumb, { width: thumbSize, height: thumbSize }, thumbStyle]}>
@@ -166,17 +192,17 @@ export default function MoodIntensitySlider({
               start={{ x: 0, y: 0 }}
               end={{ x: 0, y: 1 }}
             /> */}
-            <View style={styles.thumbInner} />
+            <Animated.View style={[styles.thumbInner, thumbInnerStyle]} />
           </Animated.View>
         </PanGestureHandler>
       </View>
-      
+
       {/* 标签 */}
       <View style={[styles.labelsContainer, { width: width }]}>
         <Text style={styles.labelText}>轻微</Text>
         <Text style={styles.labelText}>强烈</Text>
       </View>
-      
+
       {/* 刻度 */}
       <View style={[styles.scaleContainer, { width: width }]}>
         {Array.from({ length: max - min + 1 }, (_, i) => i + min).map((num) => (
@@ -192,39 +218,38 @@ export default function MoodIntensitySlider({
 const styles = StyleSheet.create({
   container: {
     alignItems: 'center',
-    paddingVertical: 16,
+    paddingTop: 8,
+    paddingBottom: 4,
   },
   sliderContainer: {
-    height: 50,
+    height: 10,
     justifyContent: 'center',
     position: 'relative',
-    paddingHorizontal: 20,
   },
   track: {
     position: 'absolute',
-    left: 20,
-    right: 20,
-    borderRadius: 8,
+    left: 0,
+    right: 0,
+    borderRadius: 6,
     overflow: 'hidden',
   },
   trackGradient: {
     flex: 1,
-    borderRadius: 8,
+    borderRadius: 6,
   },
   progress: {
     position: 'absolute',
-    left: 20,
-    borderRadius: 8,
+    left: 0,
+    borderRadius: 6,
     overflow: 'hidden',
   },
   progressGradient: {
     flex: 1,
-    borderRadius: 8,
+    borderRadius: 6,
   },
   thumb: {
     position: 'absolute',
-    left: 22,
-    elevation: 6,
+    left: 0,
     overflow: 'hidden',
   },
   thumbGradient: {
@@ -234,14 +259,11 @@ const styles = StyleSheet.create({
   },
   thumbInner: {
     width: 16,
-    height: 32,
+    height: 28,
     borderRadius: 8,
     backgroundColor: '#ffffff',
-    shadowColor: '#ffffff',
-    shadowOffset: { width: 0, height: 1 },
-    shadowOpacity: 0.3,
-    shadowRadius: 2,
-    elevation: 2,
+    borderWidth: 2,
+    borderColor: '#7a5af8',
   },
   valueContainer: {
     marginTop: 20,
@@ -266,33 +288,31 @@ const styles = StyleSheet.create({
   labelsContainer: {
     flexDirection: 'row',
     justifyContent: 'space-between',
-    marginTop: 8,
-    paddingHorizontal: 20,
+    marginTop: 6,
   },
   labelText: {
-    fontSize: 14,
+    fontSize: 12,
     color: '#5d6676',
-    fontWeight: '600',
+    fontWeight: '500',
   },
   scaleContainer: {
     flexDirection: 'row',
     justifyContent: 'space-between',
-    marginTop: 16,
-    paddingHorizontal: 20,
+    marginTop: 12,
   },
   scaleItem: {
     alignItems: 'center',
     flex: 1,
   },
   scaleMark: {
-    width: 2,
-    height: 10,
+    width: 1.5,
+    height: 8,
     backgroundColor: '#e5e7eb',
-    borderRadius: 1,
+    borderRadius: 0.75,
   },
   scaleMarkActive: {
     backgroundColor: '#7a5af8',
-    width: 3,
-    height: 12,
+    width: 2,
+    height: 10,
   },
 });