fix: 大字模式优化

app-android/app/src/main/java/com/huaga/life_echo/ui/components/common/SectionCard.kt

@@ -12,6 +12,7 @@ import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.TextUnit
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.huaga.life_echo.ui.theme.AppDimensions
@@ -27,12 +28,14 @@ import com.huaga.life_echo.ui.theme.AppTypography
  * - 支持夜间模式自动适配
  * 
  * @param title 区块标题（会自动转为大写）
+ * @param titleFontSize 标题字号（默认 null 使用 sectionTitle，传入可与章节正文一致如 bodyMedium）
  * @param modifier 外部修饰符
  * @param content 卡片内容
  */
 @Composable
 fun SectionCard(
     title: String,
+    titleFontSize: TextUnit? = null,
     modifier: Modifier = Modifier,
     content: @Composable ColumnScope.() -> Unit
 ) {
@@ -47,7 +50,7 @@ fun SectionCard(
             modifier = Modifier
                 .padding(horizontal = AppDimensions.tinySpacing)
                 .padding(bottom = 10.dp),
-            fontSize = AppTypography.sectionTitle,
+            fontSize = titleFontSize ?: AppTypography.sectionTitle,
             fontWeight = FontWeight.Medium,
             color = MaterialTheme.colorScheme.onSurfaceVariant,
             letterSpacing = 0.5.sp

app-android/app/src/main/java/com/huaga/life_echo/ui/components/common/SettingItem.kt

@@ -24,6 +24,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.TextUnit
 import androidx.compose.ui.unit.dp
 import com.huaga.life_echo.ui.icons.AppIcons
 import com.huaga.life_echo.ui.theme.AppDimensions
@@ -58,6 +59,8 @@ enum class SettingItemType {
  * @param onPress 点击回调（箭头类型）
  * @param onToggle 开关变化回调（开关类型）
  * @param isLast 是否是最后一项（不显示分隔线）
+ * @param labelFontSize 标题字号（默认 null 使用 titleSmall，传入可与章节正文一致如 titleMedium）
+ * @param descriptionFontSize 描述字号（默认 null 使用 captionMedium，传入可与章节正文一致如 bodyMedium）
  * @param modifier 外部修饰符
  */
 @Composable
@@ -70,6 +73,8 @@ fun SettingItem(
     onPress: () -> Unit = {},
     onToggle: (Boolean) -> Unit = {},
     isLast: Boolean = false,
+    labelFontSize: TextUnit? = null,
+    descriptionFontSize: TextUnit? = null,
     modifier: Modifier = Modifier
 ) {
     val contentColor = MaterialTheme.colorScheme.onSurface
@@ -107,7 +112,7 @@ fun SettingItem(
             Column(modifier = Modifier.weight(1f)) {
                 Text(
                     text = label,
-                    fontSize = AppTypography.titleSmall,
+                    fontSize = labelFontSize ?: AppTypography.titleSmall,
                     fontWeight = FontWeight.Normal,
                     color = contentColor
                 )
@@ -115,7 +120,7 @@ fun SettingItem(
                     Spacer(modifier = Modifier.height(2.dp))
                     Text(
                         text = description,
-                        fontSize = AppTypography.captionMedium,
+                        fontSize = descriptionFontSize ?: AppTypography.captionMedium,
                         color = secondaryColor
                     )
                 }
@@ -166,6 +171,8 @@ fun SettingItem(
  * @param isLast 是否是最后一项
  * @param onClick 点击回调
  * @param trailing 自定义尾部内容
+ * @param labelFontSize 标题字号（默认 null 使用 titleSmall）
+ * @param descriptionFontSize 描述字号（默认 null 使用 captionMedium）
  * @param modifier 外部修饰符
  */
 @Composable
@@ -176,6 +183,8 @@ fun SettingItemWithTrailing(
     isLast: Boolean = false,
     onClick: () -> Unit = {},
     modifier: Modifier = Modifier,
+    labelFontSize: TextUnit? = null,
+    descriptionFontSize: TextUnit? = null,
     trailing: @Composable () -> Unit
 ) {
     val contentColor = MaterialTheme.colorScheme.onSurface
@@ -213,7 +222,7 @@ fun SettingItemWithTrailing(
             Column(modifier = Modifier.weight(1f)) {
                 Text(
                     text = label,
-                    fontSize = AppTypography.titleSmall,
+                    fontSize = labelFontSize ?: AppTypography.titleSmall,
                     fontWeight = FontWeight.Normal,
                     color = contentColor
                 )
@@ -221,7 +230,7 @@ fun SettingItemWithTrailing(
                     Spacer(modifier = Modifier.height(2.dp))
                     Text(
                         text = description,
-                        fontSize = AppTypography.captionMedium,
+                        fontSize = descriptionFontSize ?: AppTypography.captionMedium,
                         color = secondaryColor
                     )
                 }

app-android/app/src/main/java/com/huaga/life_echo/ui/components/conversation/ConversationListItem.kt

@@ -93,7 +93,7 @@ fun ConversationListItem(
             Row(verticalAlignment = Alignment.CenterVertically) {
                 Text(
                     text = conversation.title,
-                    fontSize = AppTypography.titleSmall,
+                    fontSize = AppTypography.titleMedium,
                     fontWeight = FontWeight.SemiBold,
                     color = DeepPurple,
                     modifier = Modifier.weight(1f),
@@ -125,7 +125,7 @@ fun ConversationListItem(
             
             Text(
                 text = TextUtils.ellipsizeSingleLine(conversation.latestMessagePreview, 60),
-                fontSize = AppTypography.captionLarge,
+                fontSize = AppTypography.bodyMedium,
                 color = SlatePurple,
                 maxLines = 1,
                 overflow = TextOverflow.Ellipsis
@@ -136,11 +136,11 @@ fun ConversationListItem(
         Column(
             horizontalAlignment = Alignment.End
         ) {
-            // 时间戳
+            // 时间戳（与章节正文字号一致，大字模式更易读）
             TimeFormatter(
                 timestamp = conversation.latestMessageTime,
                 textColor = SlatePurple,
-                fontSize = AppTypography.captionMedium
+                fontSize = AppTypography.bodyMedium
             )
             
             // 三个点菜单按钮（仅在非多选模式且可删除时显示）

app-android/app/src/main/java/com/huaga/life_echo/ui/components/memoir/BookInfoCard.kt

@@ -54,10 +54,10 @@ fun BookInfoCard(
             
             Spacer(modifier = Modifier.height(6.dp))
             
-            // 副标题
+            // 副标题（与章节正文字号一致，大字模式更易读）
             Text(
                 text = "我的回忆录",
-                fontSize = AppTypography.captionLarge,
+                fontSize = AppTypography.bodyMedium,
                 color = SlatePurple,
                 textAlign = TextAlign.Center
             )
@@ -73,7 +73,7 @@ fun BookInfoCard(
                     if (book.total_words != null && book.total_words > 0) {
                         Text(
                             text = "${book.total_words}字",
-                            fontSize = AppTypography.captionMedium,
+                            fontSize = AppTypography.bodyMedium,
                             color = MediumPurple
                         )
                     }
@@ -81,13 +81,13 @@ fun BookInfoCard(
                         if (book.total_words != null && book.total_words > 0) {
                             Text(
                                 text = " · ",
-                                fontSize = AppTypography.captionMedium,
+                                fontSize = AppTypography.bodyMedium,
                                 color = MediumPurple
                             )
                         }
                         Text(
                             text = "${book.total_pages}页",
-                            fontSize = AppTypography.captionMedium,
+                            fontSize = AppTypography.bodyMedium,
                             color = MediumPurple
                         )
                     }

app-android/app/src/main/java/com/huaga/life_echo/ui/components/memoir/ChapterCard.kt

@@ -18,7 +18,6 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import com.huaga.life_echo.network.models.ChapterDto
 import com.huaga.life_echo.ui.components.common.MarkdownText
@@ -115,20 +114,20 @@ private fun FilledChapterCard(
                 
                 Spacer(modifier = Modifier.width(14.dp))
                 
-                // 章节信息
+                // 章节信息（与章节正文字号一致，大字模式更易读；标题支持多行换行）
                 Column(modifier = Modifier.weight(1f)) {
                     Text(
                         text = chapter.title,
-                        fontSize = AppTypography.titleSmall,
+                        fontSize = AppTypography.titleMedium,
                         fontWeight = FontWeight.Medium,
-                        color = DeepPurple,
+                        lineHeight = AppTypography.lineHeightNormal,
-                        maxLines = 1,
+                        color = DeepPurple
-                        overflow = TextOverflow.Ellipsis
                     )
-                    Spacer(modifier = Modifier.height(2.dp))
+                    Spacer(modifier = Modifier.height(AppDimensions.smallSpacing))
                     Text(
                         text = statusText,
-                        fontSize = AppTypography.captionMedium,
+                        fontSize = AppTypography.bodyMedium,
+                        lineHeight = AppTypography.lineHeightNormal,
                         color = if (isComplete) MediumPurple else SlatePurple
                     )
                 }
@@ -144,7 +143,7 @@ private fun FilledChapterCard(
                     ) {
                         Text(
                             text = "新",
-                            fontSize = AppTypography.captionSmall,
+                            fontSize = AppTypography.captionMedium,
                             color = AppWhite,
                             fontWeight = FontWeight.Medium
                         )
@@ -246,19 +245,20 @@ private fun EmptyChapterCard(
 
             Spacer(modifier = Modifier.width(14.dp))
 
-            // 章节标题和提示（标题支持多行换行，设置行高避免两行挤在一起）
+            // 章节标题和提示（与章节正文字号一致，大字模式更易读）
             Column(modifier = Modifier.weight(1f)) {
                 Text(
                     text = chapter.title,
-                    fontSize = AppTypography.titleSmall,
+                    fontSize = AppTypography.titleMedium,
                     fontWeight = FontWeight.Medium,
-                    lineHeight = AppTypography.lineHeightTight,
+                    lineHeight = AppTypography.lineHeightNormal,
                     color = SlatePurple
                 )
-                Spacer(modifier = Modifier.height(4.dp))
+                Spacer(modifier = Modifier.height(AppDimensions.smallSpacing))
                 Text(
                     text = "还没有内容，去和岁月知己聊聊吧",
-                    fontSize = AppTypography.captionMedium,
+                    fontSize = AppTypography.bodyMedium,
+                    lineHeight = AppTypography.lineHeightNormal,
                     color = SlatePurple.copy(alpha = 0.7f)
                 )
             }
@@ -275,7 +275,7 @@ private fun EmptyChapterCard(
                 ) {
                     Text(
                         text = "去聊天",
-                        fontSize = AppTypography.captionMedium,
+                        fontSize = AppTypography.bodyMedium,
                         fontWeight = FontWeight.Medium,
                         color = DeepPurple.copy(alpha = 0.7f)
                     )

app-android/app/src/main/java/com/huaga/life_echo/ui/screens/ConversationListScreen.kt

@@ -208,14 +208,14 @@ fun ConversationListScreen(
                         modifier = Modifier.fillMaxSize(),
                         contentPadding = PaddingValues(bottom = AppDimensions.screenPadding)
                     ) {
-                        // 区块标题
+                        // 区块标题（与章节正文字号一致，大字模式更易读）
                         item {
                             Text(
                                 text = "我的对话",
                                 modifier = Modifier
                                     .padding(horizontal = AppDimensions.screenPadding)
                                     .padding(top = AppDimensions.cardPadding, bottom = 10.dp),
-                                fontSize = AppTypography.captionLarge,
+                                fontSize = AppTypography.bodyMedium,
                                 fontWeight = FontWeight.Medium,
                                 color = SlatePurple,
                                 letterSpacing = 0.5.sp
@@ -375,7 +375,7 @@ private fun TipCard(modifier: Modifier = Modifier) {
             
             Text(
                 text = "每天花几分钟聊聊往事，岁月知己会帮您把珍贵的回忆整理成一本专属回忆录。童年趣事、求学时光、工作历程……随时想聊就聊。",
-                fontSize = AppTypography.captionLarge,
+                fontSize = AppTypography.bodyMedium,
                 color = SlatePurple,
                 lineHeight = AppTypography.lineHeightNormal
             )

app-android/app/src/main/java/com/huaga/life_echo/ui/screens/MyMemoirScreen.kt

@@ -31,6 +31,7 @@ import com.huaga.life_echo.ui.components.memoir.ChapterCard
 import com.huaga.life_echo.ui.components.memoir.ChapterReadingView
 import com.huaga.life_echo.ui.components.memoir.FullTextReadingView
 import com.huaga.life_echo.ui.icons.AppIcons
+import com.huaga.life_echo.ui.settings.AppSettings
 import com.huaga.life_echo.ui.theme.*
 import com.huaga.life_echo.ui.viewmodel.MyMemoirViewModel
 import com.huaga.life_echo.ui.viewmodel.ViewModelFactory
@@ -321,7 +322,7 @@ fun MyMemoirScreen(
                             Spacer(modifier = Modifier.width(4.dp))
                             Text(
                                 text = "清除回忆",
-                                fontSize = AppTypography.captionLarge
+                                fontSize = AppTypography.bodyMedium
                             )
                         }
                     }
@@ -377,6 +378,10 @@ private fun MemoirTableOfContents(
     onSubtitleChange: (String) -> Unit,
     onNavigateToChat: () -> Unit
 ) {
+    val isLargeFontMode = AppSettings.rememberLargeFontMode()
+    val headerBottomPadding = if (isLargeFontMode) AppDimensions.sectionSpacing else 8.dp
+    val cardSpacing = if (isLargeFontMode) AppDimensions.sectionSpacing else AppDimensions.itemSpacing
+
     Box(
         modifier = Modifier
             .fillMaxSize()
@@ -419,7 +424,7 @@ private fun MemoirTableOfContents(
                                 "开始和岁月知己聊天吧"
                             },
                             updatedAt = bookInfo?.let { "下拉刷新获取最新内容" } ?: "",
-                            modifier = Modifier.padding(bottom = 8.dp)
+                            modifier = Modifier.padding(bottom = headerBottomPadding)
                         )
                     }
 
@@ -428,11 +433,11 @@ private fun MemoirTableOfContents(
                         ChapterProgressHint(
                             totalChapters = chapterDtos.size,
                             filledChapters = contentChapterCount,
-                            modifier = Modifier.padding(bottom = AppDimensions.itemSpacing)
+                            modifier = Modifier.padding(bottom = cardSpacing)
                         )
                     }
                     
-                    // 章节列表（始终显示所有章节）
+                    // 章节列表（始终显示所有章节）；大字模式下卡片间距更大
                     items(chapterDtos, key = { it.id }) { chapterDto ->
                         val isEmpty = chapterDto.content.isBlank()
                         ChapterCard(
@@ -441,7 +446,7 @@ private fun MemoirTableOfContents(
                             onClick = { onChapterClick(chapterDto) },
                             onGoChat = if (isEmpty) onNavigateToChat else null
                         )
-                        Spacer(modifier = Modifier.height(AppDimensions.itemSpacing))
+                        Spacer(modifier = Modifier.height(cardSpacing))
                     }
                     
                     // 底部空间，为浮动按钮留出空间
@@ -508,7 +513,7 @@ private fun ChapterProgressHint(
             } else {
                 "所有章节已完成"
             },
-            fontSize = AppTypography.captionMedium,
+            fontSize = AppTypography.bodyMedium,
             color = SlatePurple,
             modifier = Modifier.weight(1f)
         )
@@ -543,7 +548,7 @@ private fun BookHeaderCard(
 
         Text(
             text = subtitle,
-            fontSize = AppTypography.captionLarge,
+            fontSize = AppTypography.bodyMedium,
             color = SlatePurple,
             textAlign = TextAlign.Center
         )
@@ -552,7 +557,7 @@ private fun BookHeaderCard(
             Spacer(modifier = Modifier.height(4.dp))
             Text(
                 text = updatedAt,
-                fontSize = AppTypography.captionMedium,
+                fontSize = AppTypography.bodyMedium,
                 color = MediumPurple.copy(alpha = 0.7f),
                 textAlign = TextAlign.Center
             )

app-android/app/src/main/java/com/huaga/life_echo/ui/screens/ProfileScreen.kt

@@ -161,13 +161,15 @@ fun ProfileScreen(
         // 账户管理（登录后显示）
         if (isLoggedIn) {
             item {
-                SectionCard(title = "账户管理") {
+                SectionCard(title = "账户管理", titleFontSize = AppTypography.bodyMedium) {
                     SettingItem(
                         icon = AppIcons.ManageAccounts,
                         label = "账户管理",
                         description = "修改密码、手机号、登出管理",
                         onPress = { navController?.navigate(Screen.AccountManagement.route) },
-                        isLast = true
+                        isLast = true,
+                        labelFontSize = AppTypography.titleMedium,
+                        descriptionFontSize = AppTypography.bodyMedium
                     )
                 }
             }
@@ -207,31 +209,35 @@ fun ProfileScreen(
         
         // 数据与隐私
         item {
-            SectionCard(title = "数据与隐私") {
+            SectionCard(title = "数据与隐私", titleFontSize = AppTypography.bodyMedium) {
                 SettingItem(
                     icon = AppIcons.FileDownload,
                     label = "导出所有数据",
                     onPress = { navController?.navigate(Screen.ExportData.route) },
-                    isLast = true
+                    isLast = true,
+                    labelFontSize = AppTypography.titleMedium
                 )
             }
         }
         
         // 设置
         item {
-            SectionCard(title = "设置") {
+            SectionCard(title = "设置", titleFontSize = AppTypography.bodyMedium) {
                 SettingItem(
                     icon = AppIcons.AccessTime,
                     label = "语速",
                     description = "标准",
-                    onPress = { showSpeechRateDialog = true }
+                    onPress = { showSpeechRateDialog = true },
+                    labelFontSize = AppTypography.titleMedium,
+                    descriptionFontSize = AppTypography.bodyMedium
                 )
                 SettingItem(
                     icon = AppIcons.Brightness2,
                     label = "夜间模式",
                     type = SettingItemType.TOGGLE,
                     value = darkMode,
-                    onToggle = { darkMode = it }
+                    onToggle = { darkMode = it },
+                    labelFontSize = AppTypography.titleMedium
                 )
                 SettingItem(
                     icon = AppIcons.FormatSize,
@@ -240,42 +246,48 @@ fun ProfileScreen(
                     type = SettingItemType.TOGGLE,
                     value = largeFontMode,
                     onToggle = { largeFontMode = it },
-                    isLast = true
+                    isLast = true,
+                    labelFontSize = AppTypography.titleMedium,
+                    descriptionFontSize = AppTypography.bodyMedium
                 )
             }
         }
         
         // 帮助与支持
         item {
-            SectionCard(title = "帮助与支持") {
+            SectionCard(title = "帮助与支持", titleFontSize = AppTypography.bodyMedium) {
                 SettingItem(
                     icon = AppIcons.Help,
                     label = "常见问题",
-                    onPress = { navController?.navigate(Screen.FAQ.route) }
+                    onPress = { navController?.navigate(Screen.FAQ.route) },
+                    labelFontSize = AppTypography.titleMedium
                 )
                 SettingItem(
                     icon = AppIcons.Info,
                     label = "反馈与客服",
-                    onPress = { navController?.navigate(Screen.Feedback.route) }
+                    onPress = { navController?.navigate(Screen.Feedback.route) },
+                    labelFontSize = AppTypography.titleMedium
                 )
                 SettingItem(
                     icon = AppIcons.Info,
                     label = "关于我们",
                     description = "版本 1.0.0",
                     onPress = { navController?.navigate(Screen.About.route) },
-                    isLast = true
+                    isLast = true,
+                    labelFontSize = AppTypography.titleMedium,
+                    descriptionFontSize = AppTypography.bodyMedium
                 )
             }
         }
         
-        // 版本信息
+        // 版本信息（与章节正文字号一致）
         item {
             Text(
                 text = "版本 1.0.0",
                 modifier = Modifier
                     .fillMaxWidth()
                     .padding(vertical = AppDimensions.sectionSpacing),
-                fontSize = AppTypography.captionMedium,
+                fontSize = AppTypography.bodyMedium,
                 color = androidx.compose.material3.MaterialTheme.colorScheme.onSurfaceVariant,
                 textAlign = TextAlign.Center
             )
@@ -372,7 +384,7 @@ private fun ProfileHeader(
             
             Text(
                 text = "登录以同步您的数据",
-                fontSize = AppTypography.bodySmall,
+                fontSize = AppTypography.bodyMedium,
                 color = secondaryColor
             )
             
@@ -421,7 +433,7 @@ private fun PlanBadge(planName: String) {
         
         Text(
             text = planName,
-            fontSize = AppTypography.captionLarge,
+            fontSize = AppTypography.bodyMedium,
             color = MediumPurple
         )
     }

app-android/app/src/main/java/com/huaga/life_echo/ui/theme/Dimensions.kt

@@ -151,10 +151,10 @@ private val LargeTypography = AppTypographyData(
     headingLarge = 38.sp,
     headingMedium = 29.sp,
     headingSmall = 24.sp,
-    titleLarge = 22.sp,
+    titleLarge = 24.sp,
     titleMedium = 22.sp,
     titleSmall = 18.sp,
-    bodyLarge = 22.sp,
+    bodyLarge = 24.sp,
     bodyMedium = 22.sp,
     bodySmall = 16.sp,
     captionLarge = 16.sp,