feat(post): add post reference functionality with inline cards and suggestion search

Add support for referencing/quoting other posts within post content. Includes:
- New `post_ref` segment type with `PostRefSegmentData` interface for post references
- New `PostRefCard` component to display referenced posts inline
- Post suggestion search triggered by `#` in `PostMentionInput`
- Updated `PostContentRenderer` to render post reference segments
- Add `suggestPosts` and `recordRefClick` API methods in postService

Additional improvements:
- Add image gallery preview for user profile covers and avatars
- Make text selectable across CommentItem, PostContentRenderer, and PostDetailScreen
- Migrate FlatList to FlashList in PostDetailScreen and UserProfileScreen
- Add nestedScrollEnabled to CreatePostScreen
- Add clickable member avatars in GroupMembersScreen

src/components/business/CommentItem.tsx

@@ -493,7 +493,7 @@ const CommentItem: React.FC<CommentItemProps> = ({
                 </View>
                 {/* 显示回复内容（如果有文字） */}
                 {reply.content ? (
-                  <Text variant="body" color={colors.text.primary} style={styles.subReplyBody}>
+                  <Text variant="body" color={colors.text.primary} selectable style={styles.subReplyBody}>
                     {reply.content}
                   </Text>
                 ) : null}
@@ -625,7 +625,7 @@ const CommentItem: React.FC<CommentItemProps> = ({
               textStyle={[styles.text, { color: colors.text.primary }]}
             />
           ) : (
-            <Text variant="body" color={colors.text.primary} style={styles.text}>
+            <Text variant="body" color={colors.text.primary} selectable style={styles.text}>
               {comment.content}
             </Text>
           )}

src/components/business/PostContentRenderer.tsx

@@ -9,13 +9,15 @@ import { View, TouchableOpacity, StyleSheet } from 'react-native';
 
 import Text from '../common/Text';
 import { useAppColors } from '../../theme';
-import { MessageSegment, AtSegmentData, VoteSegmentData } from '../../types';
+import { MessageSegment, AtSegmentData, VoteSegmentData, PostRefSegmentData } from '../../types';
+import PostRefCard from './PostRefCard';
 
 interface PostContentRendererProps {
   content?: string;
   segments?: MessageSegment[];
   numberOfLines?: number;
   onMentionPress?: (userId: string) => void;
+  onPostRefPress?: (postId: string) => void;
   style?: any;
   textStyle?: any;
 }
@@ -25,6 +27,7 @@ const PostContentRenderer: React.FC<PostContentRendererProps> = ({
   segments,
   numberOfLines,
   onMentionPress,
+  onPostRefPress,
   style,
   textStyle,
 }) => {
@@ -32,7 +35,7 @@ const PostContentRenderer: React.FC<PostContentRendererProps> = ({
 
   if (!segments || segments.length === 0) {
     return (
-      <Text numberOfLines={numberOfLines} style={textStyle}>
+      <Text numberOfLines={numberOfLines} selectable style={textStyle}>
         {content || ''}
       </Text>
     );
@@ -49,7 +52,7 @@ const PostContentRenderer: React.FC<PostContentRendererProps> = ({
         const text = segment.data?.text || segment.data?.content || '';
         if (text) {
           elements.push(
-            <Text key={key} style={textStyle}>
+            <Text key={key} selectable style={textStyle}>
               {text}
             </Text>
           );
@@ -65,6 +68,7 @@ const PostContentRenderer: React.FC<PostContentRendererProps> = ({
         elements.push(
           <Text
             key={key}
+            selectable
             style={[
               textStyle,
               {
@@ -88,7 +92,7 @@ const PostContentRenderer: React.FC<PostContentRendererProps> = ({
                 📊 投票（{voteData.options.length} 个选项）
               </Text>
               {voteData.options.map((opt, i) => (
-                <Text key={`vote_opt_${i}`} style={[styles.voteOption, { color: colors.text.primary }]}>
+                <Text key={`vote_opt_${i}`} selectable style={[styles.voteOption, { color: colors.text.primary }]}>
                   {i + 1}. {opt.content}
                 </Text>
               ))}
@@ -98,6 +102,19 @@ const PostContentRenderer: React.FC<PostContentRendererProps> = ({
         break;
       }
 
+      case 'post_ref': {
+        const refData = segment.data as PostRefSegmentData;
+        elements.push(
+          <PostRefCard
+            key={key}
+            data={refData}
+            compact={!!numberOfLines}
+            onPress={onPostRefPress}
+          />
+        );
+        break;
+      }
+
       case 'image':
       case 'link':
       case 'face':
@@ -108,7 +125,7 @@ const PostContentRenderer: React.FC<PostContentRendererProps> = ({
 
   if (elements.length === 0) {
     return (
-      <Text numberOfLines={numberOfLines} style={textStyle}>
+      <Text numberOfLines={numberOfLines} selectable style={textStyle}>
         {content || ''}
       </Text>
     );
@@ -117,7 +134,7 @@ const PostContentRenderer: React.FC<PostContentRendererProps> = ({
   if (numberOfLines) {
     return (
       <View style={style}>
-        <Text numberOfLines={numberOfLines} style={textStyle}>
+        <Text numberOfLines={numberOfLines} selectable style={textStyle}>
           {elements}
         </Text>
       </View>

src/components/business/PostMentionInput.tsx

@@ -8,7 +8,7 @@ import React, { useState, useEffect, useCallback, useRef } from 'react';
 import {
   View,
   TextInput,
-  FlatList,
+  ScrollView,
   TouchableOpacity,
   StyleSheet,
   Platform,
@@ -20,6 +20,7 @@ import Avatar from '../common/Avatar';
 import { useAppColors, spacing, fontSizes, borderRadius } from '../../theme';
 import { useAuthStore } from '../../stores';
 import { authService } from '../../services/auth';
+import { postService } from '../../services/post/postService';
 import { MessageSegment, AtSegmentData } from '../../types';
 
 interface MentionUser {
@@ -28,6 +29,14 @@ interface MentionUser {
   avatar: string | null;
 }
 
+interface SuggestPost {
+  id: string;
+  title: string;
+  channel?: string;
+}
+
+type SuggestionMode = 'none' | 'mention' | 'postref';
+
 interface PostMentionInputProps {
   value: string;
   onChangeText: (text: string) => void;
@@ -37,6 +46,7 @@ interface PostMentionInputProps {
   style?: any;
   minHeight?: number;
   autoExpand?: boolean;
+  onPostRefPasted?: (postId: string, title: string) => void;
 }
 
 const PostMentionInput: React.FC<PostMentionInputProps> = ({
@@ -48,14 +58,17 @@ const PostMentionInput: React.FC<PostMentionInputProps> = ({
   style,
   minHeight = 100,
   autoExpand = false,
+  onPostRefPasted,
 }) => {
   const colors = useAppColors();
   const currentUser = useAuthStore(s => s.currentUser);
   const [followingUsers, setFollowingUsers] = useState<MentionUser[]>([]);
-  const [showMentions, setShowMentions] = useState(false);
+  const [suggestPosts, setSuggestPosts] = useState<SuggestPost[]>([]);
+  const [suggestionMode, setSuggestionMode] = useState<SuggestionMode>('none');
   const [mentionQuery, setMentionQuery] = useState('');
   const [mentionStartIndex, setMentionStartIndex] = useState(-1);
   const [loaded, setLoaded] = useState(false);
+  const [postSearchTimer, setPostSearchTimer] = useState<ReturnType<typeof setTimeout> | null>(null);
   const inputRef = useRef<TextInput>(null);
 
   useEffect(() => {
@@ -125,8 +138,42 @@ const PostMentionInput: React.FC<PostMentionInputProps> = ({
       onChangeText(text);
 
       const cursorPos = text.length;
-      let atStart = -1;
 
+      // Check for # trigger (post ref search)
+      let hashStart = -1;
+      for (let i = cursorPos - 1; i >= 0; i--) {
+        if (text[i] === '#') {
+          hashStart = i;
+          break;
+        }
+        if (text[i] === ' ' || text[i] === '\n') {
+          break;
+        }
+      }
+
+      if (hashStart >= 0) {
+        const query = text.slice(hashStart + 1, cursorPos);
+        if (query.length >= 1 && !query.includes(' ') && !query.includes('\n')) {
+          if (postSearchTimer) {
+            clearTimeout(postSearchTimer);
+          }
+          const timer = setTimeout(async () => {
+            try {
+              const results = await postService.suggestPosts(query, 8);
+              setSuggestPosts(results);
+              setSuggestionMode('postref');
+              setMentionStartIndex(hashStart);
+            } catch {
+              // ignore
+            }
+          }, 300);
+          setPostSearchTimer(timer);
+          return;
+        }
+      }
+
+      // Check for @ trigger (mention)
+      let atStart = -1;
       for (let i = cursorPos - 1; i >= 0; i--) {
         if (text[i] === '@') {
           atStart = i;
@@ -142,15 +189,15 @@ const PostMentionInput: React.FC<PostMentionInputProps> = ({
         if (!query.includes(' ') && !query.includes('\n')) {
           setMentionQuery(query);
           setMentionStartIndex(atStart);
-          setShowMentions(true);
+          setSuggestionMode('mention');
           return;
         }
       }
 
-      setShowMentions(false);
+      setSuggestionMode('none');
       rebuildSegments(text);
     },
-    [onChangeText, rebuildSegments]
+    [onChangeText, rebuildSegments, postSearchTimer],
   );
 
   const handleSelectMention = useCallback(
@@ -168,7 +215,7 @@ const PostMentionInput: React.FC<PostMentionInputProps> = ({
       });
 
       onChangeText(newText);
-      setShowMentions(false);
+      setSuggestionMode('none');
       setMentionQuery('');
       setMentionStartIndex(-1);
 
@@ -176,7 +223,31 @@ const PostMentionInput: React.FC<PostMentionInputProps> = ({
 
       inputRef.current?.focus();
     },
-    [value, mentionStartIndex, onChangeText, rebuildSegments]
+    [value, mentionStartIndex, onChangeText, rebuildSegments],
+  );
+
+  const handleSelectPost = useCallback(
+    (post: SuggestPost) => {
+      if (mentionStartIndex < 0) return;
+
+      const before = value.slice(0, mentionStartIndex);
+      const refText = `#${post.title} `;
+      const newText = before + refText;
+
+      onChangeText(newText);
+      setSuggestionMode('none');
+      setSuggestPosts([]);
+      setMentionStartIndex(-1);
+
+      if (onPostRefPasted) {
+        onPostRefPasted(post.id, post.title);
+      }
+
+      rebuildSegments(newText);
+
+      inputRef.current?.focus();
+    },
+    [value, mentionStartIndex, onChangeText, rebuildSegments, onPostRefPasted],
   );
 
   const renderMentionItem = ({ item }: { item: MentionUser }) => (
@@ -221,26 +292,66 @@ const PostMentionInput: React.FC<PostMentionInputProps> = ({
         ]}
       />
 
-      {showMentions && filteredUsers.length > 0 && (
+      {suggestionMode === 'mention' && filteredUsers.length > 0 && (
         <View style={[styles.mentionPanel, { backgroundColor: colors.background.paper, borderColor: colors.divider }]}>
-          <FlatList
-            data={filteredUsers}
-            renderItem={renderMentionItem}
-            keyExtractor={item => item.id}
+          <ScrollView
             keyboardShouldPersistTaps="handled"
             nestedScrollEnabled
             style={styles.mentionList}
-          />
+          >
+            {filteredUsers.map(item => (
+              <React.Fragment key={item.id}>
+                {renderMentionItem({ item })}
+              </React.Fragment>
+            ))}
+          </ScrollView>
         </View>
       )}
 
-      {showMentions && filteredUsers.length === 0 && (
+      {suggestionMode === 'mention' && filteredUsers.length === 0 && (
         <View style={[styles.mentionPanel, { backgroundColor: colors.background.paper, borderColor: colors.divider }]}>
           <Text style={[styles.emptyText, { color: colors.text.hint }]}>
             没有找到匹配的关注用户
           </Text>
         </View>
       )}
+
+      {suggestionMode === 'postref' && suggestPosts.length > 0 && (
+        <View style={[styles.mentionPanel, { backgroundColor: colors.background.paper, borderColor: colors.divider }]}>
+          <ScrollView
+            keyboardShouldPersistTaps="handled"
+            nestedScrollEnabled
+            style={styles.mentionList}
+          >
+            {suggestPosts.map(item => (
+              <TouchableOpacity
+                key={item.id}
+                style={[styles.mentionItem, { borderBottomColor: colors.divider }]}
+                onPress={() => handleSelectPost(item)}
+                activeOpacity={0.7}
+              >
+                <MaterialCommunityIcons name="file-document-outline" size={18} color={colors.primary.main} />
+                <View style={styles.mentionInfo}>
+                  <Text style={[styles.mentionName, { color: colors.text.primary }]} numberOfLines={1}>
+                    {item.title}
+                  </Text>
+                  <Text style={[styles.mentionHint, { color: colors.text.hint }]}>
+                    点击引用帖子
+                  </Text>
+                </View>
+              </TouchableOpacity>
+            ))}
+          </ScrollView>
+        </View>
+      )}
+
+      {suggestionMode === 'postref' && suggestPosts.length === 0 && (
+        <View style={[styles.mentionPanel, { backgroundColor: colors.background.paper, borderColor: colors.divider }]}>
+          <Text style={[styles.emptyText, { color: colors.text.hint }]}>
+            没有找到匹配的帖子
+          </Text>
+        </View>
+      )}
     </View>
   );
 };

src/components/business/PostRefCard.tsx

@@ -0,0 +1,124 @@
+import React, { useCallback } from 'react';
+import { View, TouchableOpacity, StyleSheet, ActivityIndicator } from 'react-native';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+import { useRouter } from 'expo-router';
+
+import Text from '../common/Text';
+import { useAppColors, spacing, borderRadius } from '../../theme';
+import type { PostRefSegmentData } from '../../types';
+
+interface PostRefCardProps {
+  data: PostRefSegmentData;
+  compact?: boolean;
+  onPress?: (postId: string) => void;
+}
+
+const PostRefCard: React.FC<PostRefCardProps> = ({ data, compact = false, onPress }) => {
+  const colors = useAppColors();
+  const router = useRouter();
+
+  const handlePress = useCallback(() => {
+    if (onPress) {
+      onPress(data.post_id);
+    } else {
+      router.push(`/post/${data.post_id}` as any);
+    }
+  }, [data.post_id, onPress, router]);
+
+  const isDeleted = data.status === 'deleted';
+  const isHidden = data.status === 'hidden';
+  const isUnavailable = isDeleted || isHidden || !data.accessible;
+  const authorName = data.author?.nickname || '';
+
+  if (isUnavailable) {
+    return (
+      <View
+        style={[
+          styles.container,
+          { backgroundColor: colors.background.default, borderColor: colors.divider },
+          compact && styles.containerCompact,
+        ]}
+      >
+        <MaterialCommunityIcons name="link-off" size={16} color={colors.text.hint} />
+        <Text style={[styles.unavailableText, { color: colors.text.hint }]} numberOfLines={1}>
+          {isDeleted ? '该帖子已删除' : isHidden ? '该帖子不可见' : '请登录后查看'}
+        </Text>
+      </View>
+    );
+  }
+
+  return (
+    <TouchableOpacity
+      style={[
+        styles.container,
+        { backgroundColor: colors.background.default, borderColor: colors.primary.light },
+        compact && styles.containerCompact,
+      ]}
+      onPress={handlePress}
+      activeOpacity={0.7}
+    >
+      <View style={[styles.iconWrap, { backgroundColor: colors.primary.light }]}>
+        <MaterialCommunityIcons name="file-document-outline" size={14} color={colors.primary.main} />
+      </View>
+      <View style={styles.contentWrap}>
+        <Text
+          style={[styles.title, { color: colors.text.primary }]}
+          numberOfLines={compact ? 1 : 2}
+        >
+          {data.title || '帖子'}
+        </Text>
+        {authorName ? (
+          <Text style={[styles.author, { color: colors.text.secondary }]} numberOfLines={1}>
+            @{authorName}
+          </Text>
+        ) : null}
+      </View>
+      <MaterialCommunityIcons name="chevron-right" size={16} color={colors.text.hint} />
+    </TouchableOpacity>
+  );
+};
+
+const styles = StyleSheet.create({
+  container: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    borderWidth: 1,
+    borderRadius: borderRadius.md,
+    paddingVertical: spacing.sm,
+    paddingHorizontal: spacing.md,
+    marginTop: spacing.xs,
+    marginBottom: spacing.xs,
+  },
+  containerCompact: {
+    paddingVertical: spacing.xs,
+    paddingHorizontal: spacing.sm,
+  },
+  iconWrap: {
+    width: 24,
+    height: 24,
+    borderRadius: 4,
+    alignItems: 'center',
+    justifyContent: 'center',
+    marginRight: spacing.sm,
+  },
+  contentWrap: {
+    flex: 1,
+    justifyContent: 'center',
+  },
+  title: {
+    fontSize: 13,
+    fontWeight: '500',
+    lineHeight: 18,
+  },
+  author: {
+    fontSize: 11,
+    lineHeight: 14,
+    marginTop: 1,
+  },
+  unavailableText: {
+    fontSize: 13,
+    marginLeft: spacing.sm,
+  },
+});
+
+export default PostRefCard;

src/components/business/UserProfileHeader.tsx

@@ -20,6 +20,8 @@ import { spacing, fontSizes, borderRadius, useAppColors, type AppColors } from '
 import { User } from '../../types';
 import Text from '../common/Text';
 import Avatar from '../common/Avatar';
+import { ImageGallery } from '../common';
+import type { GalleryImageItem } from '../common';
 import { useResponsive } from '../../hooks';
 
 interface UserProfileHeaderProps {
@@ -55,6 +57,9 @@ const UserProfileHeader: React.FC<UserProfileHeaderProps> = ({
   const [menuVisible, setMenuVisible] = useState(false);
   const [menuPosition, setMenuPosition] = useState({ x: 0, y: 0 });
   const moreButtonRef = useRef<View>(null);
+  const [galleryVisible, setGalleryVisible] = useState(false);
+  const [galleryImages, setGalleryImages] = useState<GalleryImageItem[]>([]);
+  const [galleryIndex, setGalleryIndex] = useState(0);
 
   const formatCount = (count: number | undefined): string => {
     if (count === undefined || count === null) return '0';
@@ -106,6 +111,24 @@ const UserProfileHeader: React.FC<UserProfileHeaderProps> = ({
     onBlock?.();
   }, [onBlock]);
 
+  const openImageGallery = useCallback((images: GalleryImageItem[], index: number = 0) => {
+    setGalleryImages(images);
+    setGalleryIndex(index);
+    setGalleryVisible(true);
+  }, []);
+
+  const handleCoverPress = useCallback(() => {
+    if (user.cover_url) {
+      openImageGallery([{ id: 'cover', url: user.cover_url }], 0);
+    }
+  }, [user.cover_url, openImageGallery]);
+
+  const handleAvatarPressPreview = useCallback(() => {
+    if (user.avatar) {
+      openImageGallery([{ id: 'avatar', url: user.avatar }], 0);
+    }
+  }, [user.avatar, openImageGallery]);
+
   const renderStatLink = (count: number, label: string, onPress?: () => void) => {
     if (!onPress) {
       return (
@@ -165,7 +188,12 @@ const UserProfileHeader: React.FC<UserProfileHeaderProps> = ({
     <View style={styles.container}>
       {/* 全宽封面背景 */}
       <View style={[styles.coverContainer, { height: coverHeight }]}>
-        <View style={styles.coverTouchable}>
+        <TouchableOpacity
+          style={styles.coverTouchable}
+          onPress={handleCoverPress}
+          activeOpacity={0.9}
+          disabled={!user.cover_url}
+        >
           {user.cover_url ? (
             <Image
               source={{ uri: user.cover_url }}
@@ -177,7 +205,7 @@ const UserProfileHeader: React.FC<UserProfileHeaderProps> = ({
               <MaterialCommunityIcons name="image-outline" size={48} color="rgba(255,255,255,0.4)" />
             </View>
           )}
-        </View>
+        </TouchableOpacity>
 
         {/* 顶部导航栏按钮 */}
         <View style={styles.topBar}>
@@ -194,18 +222,23 @@ const UserProfileHeader: React.FC<UserProfileHeaderProps> = ({
         {/* 头像与操作按钮行 */}
         <View style={styles.avatarActionRow}>
           <View style={[styles.avatarWrapper, { marginTop: -avatarSize / 2 }]}>
-            <View style={[styles.avatarContainer, { width: avatarSize, height: avatarSize }]}>
+            <TouchableOpacity
+              style={[styles.avatarContainer, { width: avatarSize, height: avatarSize }]}
+              onPress={isCurrentUser && onAvatarPress ? onAvatarPress : handleAvatarPressPreview}
+              activeOpacity={0.9}
+              disabled={isCurrentUser ? !onAvatarPress : !user.avatar}
+            >
               <Avatar
                 source={user.avatar}
                 size={avatarSize - 6}
                 name={user.nickname}
               />
               {isCurrentUser && onAvatarPress && (
-                <TouchableOpacity style={styles.editAvatarButton} onPress={onAvatarPress}>
+                <View style={styles.editAvatarButton} pointerEvents="none">
                   <MaterialCommunityIcons name="camera" size={14} color={colors.text.inverse} />
-                </TouchableOpacity>
-              )}
                 </View>
+              )}
+            </TouchableOpacity>
           </View>
 
           <View style={styles.actionButtons}>
@@ -291,6 +324,15 @@ const UserProfileHeader: React.FC<UserProfileHeaderProps> = ({
       </View>
 
       {renderDropdownMenu()}
+
+      {/* 图片预览 */}
+      <ImageGallery
+        visible={galleryVisible}
+        images={galleryImages}
+        initialIndex={galleryIndex}
+        onClose={() => setGalleryVisible(false)}
+        enableSave
+      />
     </View>
   );
 };

src/screens/create/CreatePostScreen.tsx

@@ -795,6 +795,7 @@ export const CreatePostScreen: React.FC<CreatePostScreenProps> = (props) => {
         contentContainerStyle={styles.scrollContent}
         showsVerticalScrollIndicator={false}
         keyboardShouldPersistTaps="handled"
+        nestedScrollEnabled
       >
         {/* 内容输入区 */}
         {renderContentSection()}

src/screens/home/PostDetailScreen.tsx

@@ -7,7 +7,6 @@
 import React, { useState, useEffect, useCallback, useRef, useMemo } from 'react';
 import {
   View,
-  FlatList,
   StyleSheet,
   RefreshControl,
   TouchableOpacity,
@@ -23,6 +22,7 @@ import {
   Clipboard,
   Dimensions,
 } from 'react-native';
+import { FlashList, ListRenderItem, FlashListRef } from '@shopify/flash-list';
 import { useSafeAreaInsets } from 'react-native-safe-area-context';
 import { useNavigation, useRouter, useLocalSearchParams } from 'expo-router';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
@@ -253,7 +253,7 @@ export const PostDetailScreen: React.FC = () => {
   const [isFollowing, setIsFollowing] = useState(false);
   const [isFollowingMe, setIsFollowingMe] = useState(false);
   const [isFollowLoading, setIsFollowLoading] = useState(false);
-  const flatListRef = useRef<FlatList>(null);
+  const flatListRef = useRef<FlashListRef<Comment> | null>(null);
   const hasRecordedView = useRef(false); // 是否已记录浏览量
   
   // 举报相关状态
@@ -1136,6 +1136,7 @@ export const PostDetailScreen: React.FC = () => {
           <View style={styles.titleContainer}>
             <Text 
               variant="h2" 
+              selectable
               style={[
                 styles.title,
                 { 
@@ -1361,7 +1362,7 @@ export const PostDetailScreen: React.FC = () => {
   // 渲染评论 - 带楼层号
   const commentKeyExtractor = useCallback((item: Comment) => item.id, []);
 
-  const renderComment = useCallback(({ item, index }: { item: Comment; index: number }) => {
+  const renderComment = useCallback<ListRenderItem<Comment>>(({ item, index }) => {
     const authorId = item.author?.id || '';
     // 收集当前评论的所有回复，用于根据 target_id 查找被回复用户
     const allReplies = item.replies || [];
@@ -1597,10 +1598,10 @@ export const PostDetailScreen: React.FC = () => {
             </TouchableOpacity>
           </View>
 
-          {/* Emoji Panel —— 使用 FlatList 虚拟化渲染，解决显示不全和卡顿 */}
+          {/* Emoji Panel —— 使用 FlashList 虚拟化渲染，解决显示不全和卡顿 */}
           {showEmojiPanel && (
             <View style={styles.emojiPanel}>
-              <FlatList
+              <FlashList
                 data={EMOJI_ROWS}
                 keyExtractor={(item) => item.id}
                 renderItem={({ item }) => (
@@ -1619,14 +1620,7 @@ export const PostDetailScreen: React.FC = () => {
                 )}
                 showsVerticalScrollIndicator={false}
                 keyboardShouldPersistTaps="handled"
-                initialNumToRender={8}
-                maxToRenderPerBatch={8}
-                windowSize={5}
-                getItemLayout={(_data, index) => ({
-                  length: EMOJI_ROW_HEIGHT,
-                  offset: EMOJI_ROW_HEIGHT * index,
-                  index,
-                })}
+                drawDistance={100}
               />
             </View>
           )}
@@ -1637,7 +1631,7 @@ export const PostDetailScreen: React.FC = () => {
 
   // 渲染评论列表
   const renderCommentsList = () => (
-    <FlatList
+    <FlashList
       ref={flatListRef}
       data={comments}
       renderItem={renderComment}
@@ -1645,11 +1639,6 @@ export const PostDetailScreen: React.FC = () => {
       ListEmptyComponent={renderEmptyComments}
       contentContainerStyle={{ paddingBottom: responsiveGap }}
       showsVerticalScrollIndicator={false}
-      onScrollToIndexFailed={() => {
-        setTimeout(() => {
-          flatListRef.current?.scrollToEnd({ animated: true });
-        }, 100);
-      }}
       refreshControl={
         <RefreshControl
           refreshing={isPostRefreshing || isCommentsRefreshing}
@@ -1660,11 +1649,7 @@ export const PostDetailScreen: React.FC = () => {
       }
       onEndReached={handleLoadMoreComments}
       onEndReachedThreshold={0.3}
-      initialNumToRender={10}
-      maxToRenderPerBatch={10}
-      updateCellsBatchingPeriod={60}
-      windowSize={7}
-      removeClippedSubviews
+      drawDistance={250}
       ListFooterComponent={
         isCommentsInitialLoading ? (
           <View style={styles.commentsLoadingFooter}>
@@ -1735,8 +1720,13 @@ export const PostDetailScreen: React.FC = () => {
           sidebarPosition="right"
         >
           <View style={styles.flex}>
-            <ScrollView
-              style={styles.flex}
+            <FlashList
+              ref={flatListRef}
+              data={comments}
+              renderItem={renderComment}
+              keyExtractor={commentKeyExtractor}
+              ListHeaderComponent={renderPostHeader}
+              ListEmptyComponent={renderEmptyComments}
               contentContainerStyle={{ paddingBottom: responsivePadding }}
               showsVerticalScrollIndicator={false}
               refreshControl={
@@ -1747,10 +1737,34 @@ export const PostDetailScreen: React.FC = () => {
                   tintColor={colors.primary.main}
                 />
               }
+              onEndReached={handleLoadMoreComments}
+              onEndReachedThreshold={0.3}
+              drawDistance={250}
+              ListFooterComponent={
+                isCommentsInitialLoading ? (
+                  <View style={styles.commentsLoadingFooter}>
+                    <Loading size="sm" />
+                  </View>
+                ) : isCommentsLoadingMore ? (
+                  <View style={styles.commentsLoadingFooter}>
+                    <Loading size="sm" />
+                  </View>
+                ) : hasMoreComments ? (
+                  <TouchableOpacity
+                    style={styles.loadMoreButton}
+                    onPress={handleLoadMoreComments}
                   >
-              {renderPostHeader()}
-              {renderCommentsList()}
-            </ScrollView>
+                    <Text variant="caption" color={colors.primary.main}>
+                      加载更多评论
+                    </Text>
+                  </TouchableOpacity>
+                ) : (comments?.length ?? 0) > 0 ? (
+                  <Text variant="caption" color={colors.text.hint} style={styles.noMoreComments}>
+                    没有更多评论了
+                  </Text>
+                ) : null
+              }
+            />
             {renderCommentInput()}
           </View>
         </AdaptiveLayout>
@@ -1778,7 +1792,7 @@ export const PostDetailScreen: React.FC = () => {
         behavior={Platform.OS === 'ios' ? 'padding' : undefined}
         keyboardVerticalOffset={88}
       >
-        <FlatList
+        <FlashList
           ref={flatListRef}
           data={comments}
           renderItem={renderComment}
@@ -1787,11 +1801,6 @@ export const PostDetailScreen: React.FC = () => {
           ListEmptyComponent={renderEmptyComments}
           contentContainerStyle={{ paddingBottom: responsiveGap }}
           showsVerticalScrollIndicator={false}
-          onScrollToIndexFailed={() => {
-            setTimeout(() => {
-              flatListRef.current?.scrollToEnd({ animated: true });
-            }, 100);
-          }}
           refreshControl={
             <RefreshControl
               refreshing={isPostRefreshing || isCommentsRefreshing}
@@ -1802,11 +1811,7 @@ export const PostDetailScreen: React.FC = () => {
           }
           onEndReached={handleLoadMoreComments}
           onEndReachedThreshold={0.3}
-          initialNumToRender={10}
-          maxToRenderPerBatch={10}
-          updateCellsBatchingPeriod={60}
-          windowSize={7}
-          removeClippedSubviews
+          drawDistance={250}
           ListFooterComponent={
             isCommentsInitialLoading ? (
               <View style={styles.commentsLoadingFooter}>

src/screens/message/GroupMembersScreen.tsx

@@ -21,6 +21,7 @@ import {
 } from 'react-native';
 import { SafeAreaView } from 'react-native-safe-area-context';
 import { useLocalSearchParams, useRouter } from 'expo-router';
+import { hrefUserProfile } from '../../navigation/hrefs';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
 import { blurActiveElement } from '../../infrastructure/platform';
 import { spacing, fontSizes, borderRadius, useAppColors, type AppColors } from '../../theme';
@@ -383,24 +384,36 @@ const GroupMembersScreen: React.FC = () => {
     }
   };
 
+  // 点击头像进入对方主页
+  const handleAvatarPress = (member: GroupMemberResponse) => {
+    if (member.user_id) {
+      router.push(hrefUserProfile(String(member.user_id)));
+    }
+  };
+
   // 渲染成员项
   const renderMember: ListRenderItem<GroupMemberResponse> = ({ item }) => {
     const isSelf = item.user_id === currentUser?.id;
     const canManage = isAdmin && item.role !== 'owner' && (isOwner || item.role === 'member');
 
     return (
+      <View style={styles.memberItem}>
         <TouchableOpacity
-        style={styles.memberItem}
-        onPress={() => canManage ? openActionModal(item) : null}
-        onLongPress={() => isSelf ? openNicknameModal(item) : null}
-        activeOpacity={canManage ? 0.7 : 1}
+          onPress={() => handleAvatarPress(item)}
+          activeOpacity={0.7}
         >
           <Avatar
             source={item.user?.avatar}
             size={48}
             name={item.user?.nickname || item.nickname}
           />
-        <View style={styles.memberInfo}>
+        </TouchableOpacity>
+        <TouchableOpacity
+          style={styles.memberInfo}
+          onPress={() => isSelf ? openNicknameModal(item) : handleAvatarPress(item)}
+          onLongPress={() => isSelf ? openNicknameModal(item) : null}
+          activeOpacity={0.7}
+        >
           <View style={styles.memberNameRow}>
             <Text variant="body" style={styles.memberName}>
               {item.nickname || item.user?.nickname || '未知用户'}
@@ -422,11 +435,16 @@ const GroupMembersScreen: React.FC = () => {
               <Text variant="label" color={colors.error.main}> 禁言中</Text>
             </View>
           )}
-        </View>
-        {canManage && (
-          <MaterialCommunityIcons name="dots-vertical" size={20} color={colors.text.hint} />
-        )}
         </TouchableOpacity>
+        {canManage && (
+          <TouchableOpacity
+            onPress={() => openActionModal(item)}
+            hitSlop={{ top: 8, bottom: 8, left: 8, right: 8 }}
+          >
+            <MaterialCommunityIcons name="dots-vertical" size={20} color={colors.text.hint} />
+          </TouchableOpacity>
+        )}
+      </View>
     );
   };
 

src/screens/profile/UserProfileScreen.tsx

@@ -5,12 +5,13 @@
  * 支持桌面端双栏布局
  */
 
-import React, { useCallback, useMemo } from 'react';
+import React, { useCallback, useMemo, useRef } from 'react';
 import {
   View,
   RefreshControl,
   ScrollView,
 } from 'react-native';
+import { FlashList, ListRenderItem } from '@shopify/flash-list';
 import { SafeAreaView } from 'react-native-safe-area-context';
 import { useAppColors } from '../../theme';
 import { Post } from '../../types';
@@ -54,20 +55,51 @@ export const UserProfileScreen: React.FC<UserProfileScreenProps> = ({ mode, user
     currentUser,
   } = useUserProfile({ mode, userId, isDesktop, isTablet });
 
-  // 渲染帖子列表 - Twitter 风格无边框
-  const renderPostList = useCallback((postList: Post[], emptyTitle: string, emptyDesc: string, blockedTitle?: string, blockedDesc?: string) => {
-    if (isBlockedProfile && blockedTitle) {
+  // 当前显示的帖子列表
+  const currentPosts = activeTab === 0 ? posts : favorites;
+
+  // 渲染帖子项
+  const renderPostItem = useCallback<ListRenderItem<Post>>(({ item, index }) => {
+    const isPostAuthor = currentUser?.id === item.author?.id;
+    const isLast = index === currentPosts.length - 1;
+    return (
+      <View style={[
+        sharedStyles.postWrapper,
+        isLast && sharedStyles.lastPost,
+      ]}>
+        <PostCard
+          post={item}
+          onAction={(action) => handlePostAction(item, action)}
+          isPostAuthor={isPostAuthor}
+        />
+      </View>
+    );
+  }, [currentUser?.id, handlePostAction, currentPosts.length]);
+
+  const postKeyExtractor = useCallback((item: Post) => item.id, []);
+
+  // 渲染空状态
+  const renderEmptyPosts = useCallback(() => {
+    if (loading) return <Loading />;
+
+    if (isBlockedProfile && activeTab === 0 && mode === 'other') {
       return (
         <EmptyState
-          title={blockedTitle}
-          description={blockedDesc || ''}
+          title="已将该用户拉黑"
+          description="你已将此用户拉黑，不再显示其帖子"
           icon="account-off-outline"
           variant="modern"
         />
       );
     }
 
-    if (postList.length === 0) {
+    const emptyTitle = activeTab === 0
+      ? (mode === 'self' ? '还没有帖子' : '这个用户还没有发布任何帖子')
+      : (mode === 'self' ? '还没有收藏' : '这个用户还没有收藏任何帖子');
+    const emptyDesc = activeTab === 0
+      ? (mode === 'self' ? '分享你的想法，发布第一条帖子吧' : '')
+      : (mode === 'self' ? '发现喜欢的内容，点击收藏按钮保存' : '');
+
     return (
       <EmptyState
         title={emptyTitle}
@@ -76,59 +108,13 @@ export const UserProfileScreen: React.FC<UserProfileScreenProps> = ({ mode, user
         variant="modern"
       />
     );
-    }
+  }, [loading, activeTab, mode, isBlockedProfile]);
 
-    return (
-      <View style={sharedStyles.postsContainer}>
-        {postList.map((post, index) => {
-          const isPostAuthor = currentUser?.id === post.author?.id;
-          return (
-            <View key={post.id} style={[
-              sharedStyles.postWrapper,
-              index === postList.length - 1 && sharedStyles.lastPost,
-            ]}>
-              <PostCard
-                post={post}
-                onAction={(action) => handlePostAction(post, action)}
-                isPostAuthor={isPostAuthor}
-              />
-            </View>
-          );
-        })}
-      </View>
-    );
-  }, [currentUser?.id, handlePostAction, activeTab, isBlockedProfile]);
-
-  // 渲染内容
-  const renderContent = useCallback(() => {
-    if (loading) return <Loading />;
-
-    if (activeTab === 0) {
-      return renderPostList(
-        posts,
-        mode === 'self' ? '还没有帖子' : '这个用户还没有发布任何帖子',
-        mode === 'self' ? '分享你的想法，发布第一条帖子吧' : '',
-        mode === 'other' ? '已将该用户拉黑' : undefined,
-        mode === 'other' ? '你已将此用户拉黑，不再显示其帖子' : undefined
-      );
-    }
-
-    if (activeTab === 1) {
-      return renderPostList(
-        favorites,
-        mode === 'self' ? '还没有收藏' : '这个用户还没有收藏任何帖子',
-        mode === 'self' ? '发现喜欢的内容，点击收藏按钮保存' : ''
-      );
-    }
-
-    return null;
-  }, [loading, activeTab, posts, favorites, mode, renderPostList]);
-
-  // 渲染用户信息头部
-  const renderUserHeader = useMemo(() => {
+  // 渲染 FlashList 头部（用户信息 + TabBar）
+  const renderListHeader = useCallback(() => {
     if (!user) return null;
-
     return (
+      <>
         <UserProfileHeader
           user={user}
           isCurrentUser={isCurrentUser}
@@ -141,12 +127,6 @@ export const UserProfileScreen: React.FC<UserProfileScreenProps> = ({ mode, user
           onFollowingPress={handleFollowingPress}
           onFollowersPress={handleFollowersPress}
         />
-    );
-  }, [user, isCurrentUser, isBlocked, handleFollow, handleSettings, handleEditProfile, handleMessage, handleBlock, handleFollowingPress, handleFollowersPress]);
-
-  // 渲染 TabBar 和内容
-  const renderTabBarAndContent = useMemo(() => (
-    <>
         <View style={sharedStyles.tabBarContainer}>
           <TabBar
             tabs={TABS}
@@ -156,11 +136,9 @@ export const UserProfileScreen: React.FC<UserProfileScreenProps> = ({ mode, user
             icons={TAB_ICONS}
           />
         </View>
-      <View style={sharedStyles.contentContainer}>
-        {renderContent()}
-      </View>
       </>
-  ), [activeTab, renderContent]);
+    );
+  }, [user, isCurrentUser, isBlocked, handleFollow, handleSettings, handleEditProfile, handleMessage, handleBlock, handleFollowingPress, handleFollowersPress, activeTab, setActiveTab]);
 
   // 未登录/用户不存在状态
   if (mode === 'self' && !currentUser) {
@@ -209,18 +187,40 @@ export const UserProfileScreen: React.FC<UserProfileScreenProps> = ({ mode, user
                   />
                 }
               >
-                {renderUserHeader}
+                {renderListHeader()}
               </ScrollView>
             </View>
 
             {/* 右侧：帖子列表 */}
             <View style={sharedStyles.desktopContent}>
-              <ScrollView
+              <FlashList
+                data={currentPosts}
+                renderItem={renderPostItem}
+                keyExtractor={postKeyExtractor}
+                ListHeaderComponent={
+                  <View style={sharedStyles.tabBarContainer}>
+                    <TabBar
+                      tabs={TABS}
+                      activeIndex={activeTab}
+                      onTabChange={setActiveTab}
+                      variant="modern"
+                      icons={TAB_ICONS}
+                    />
+                  </View>
+                }
+                ListEmptyComponent={renderEmptyPosts}
+                contentContainerStyle={{ paddingBottom: scrollBottomInset }}
                 showsVerticalScrollIndicator={false}
-                contentContainerStyle={[sharedStyles.desktopScrollContent, { paddingBottom: scrollBottomInset }]}
-              >
-                {renderTabBarAndContent}
-              </ScrollView>
+                refreshControl={
+                  <RefreshControl
+                    refreshing={refreshing}
+                    onRefresh={onRefresh}
+                    colors={[colors.primary.main]}
+                    tintColor={colors.primary.main}
+                  />
+                }
+                drawDistance={250}
+              />
             </View>
           </View>
         </ResponsiveContainer>
@@ -231,7 +231,13 @@ export const UserProfileScreen: React.FC<UserProfileScreenProps> = ({ mode, user
   // 移动端使用单栏布局
   return (
     <SafeAreaView style={sharedStyles.container} edges={safeAreaEdges as any}>
-      <ScrollView
+      <FlashList
+        data={currentPosts}
+        renderItem={renderPostItem}
+        keyExtractor={postKeyExtractor}
+        ListHeaderComponent={renderListHeader}
+        ListEmptyComponent={renderEmptyPosts}
+        contentContainerStyle={{ paddingBottom: scrollBottomInset }}
         showsVerticalScrollIndicator={false}
         refreshControl={
           <RefreshControl
@@ -241,11 +247,8 @@ export const UserProfileScreen: React.FC<UserProfileScreenProps> = ({ mode, user
             tintColor={colors.primary.main}
           />
         }
-        contentContainerStyle={[sharedStyles.scrollContent, { paddingBottom: scrollBottomInset }]}
-      >
-        {renderUserHeader}
-        {renderTabBarAndContent}
-      </ScrollView>
+        drawDistance={250}
+      />
     </SafeAreaView>
   );
 };

src/services/post/postService.ts

@@ -420,6 +420,23 @@ class PostService {
       };
     }
   }
+
+  async suggestPosts(keyword: string, limit = 10): Promise<Array<{ id: string; title: string; channel?: string }>> {
+    try {
+      const response = await api.get<any>('/posts/suggest', { q: keyword, limit });
+      return response.data ?? [];
+    } catch {
+      return [];
+    }
+  }
+
+  async recordRefClick(sourcePostId: string, targetPostId: string): Promise<void> {
+    try {
+      await api.post(`/posts/${sourcePostId}/ref-click`, { target_post_id: targetPostId });
+    } catch {
+      // ignore
+    }
+  }
 }
 
 // 导出帖子服务实例

src/types/dto.ts

@@ -150,7 +150,7 @@ export type MessageStatus = 'normal' | 'recalled' | 'deleted';
 // ==================== Message Segment Types ====================
 
 // Segment类型
-export type SegmentType = 'text' | 'image' | 'voice' | 'video' | 'file' | 'at' | 'reply' | 'face' | 'link' | 'vote';
+export type SegmentType = 'text' | 'image' | 'voice' | 'video' | 'file' | 'at' | 'reply' | 'face' | 'link' | 'vote' | 'post_ref';
 
 // 文本Segment数据
 export interface TextSegmentData {
@@ -232,6 +232,20 @@ export interface VoteSegmentData {
   is_multi_choice?: boolean;
 }
 
+// 帖子内链Segment数据
+export interface PostRefSegmentData {
+  post_id: string;
+  title?: string;
+  author?: {
+    id: string;
+    nickname: string;
+    avatar?: string;
+  };
+  status?: string;
+  accessible?: boolean;
+  click_count?: number;
+}
+
 // MessageSegment 联合类型 - 使用 discriminated union
 export type MessageSegment =
   | { type: 'text'; data: TextSegmentData }
@@ -243,7 +257,8 @@ export type MessageSegment =
   | { type: 'reply'; data: ReplySegmentData }
   | { type: 'face'; data: FaceSegmentData }
   | { type: 'link'; data: LinkSegmentData }
-  | { type: 'vote'; data: VoteSegmentData };
+  | { type: 'vote'; data: VoteSegmentData }
+  | { type: 'post_ref'; data: PostRefSegmentData };
 
 // 消息响应
 export interface MessageResponse {
@@ -787,6 +802,10 @@ export function extractTextFromSegments(segments?: MessageSegment[], memberMap?:
       case 'reply':
         // 回复不显示在预览中
         break;
+      case 'post_ref':
+        const refData = segment.data as PostRefSegmentData;
+        result += refData.title ? `[帖子: ${refData.title}]` : '[帖子引用]';
+        break;
     }
   }
 
@@ -967,6 +986,10 @@ export async function extractTextFromSegmentsAsync(
       case 'reply':
         // 回复不显示在预览中
         break;
+      case 'post_ref':
+        const refDataAsync = segment.data as PostRefSegmentData;
+        result += refDataAsync.title ? `[帖子: ${refDataAsync.title}]` : '[帖子引用]';
+        break;
     }
   }