fix: 软刷新齐套前保留旧画面，避免一点击就卸光

Logo/下拉静默预热后一次覆盖；commit 不再先 reset/loading；顺带会话预取与可配置 Feed 排序标签。

frontend/src/App.tsx

@@ -17,6 +17,7 @@ import PageLoader from './components/PageLoader';
 import AuthPageFallback from './components/AuthPageFallback';
 import { Toaster } from './components/ui/sonner';
 import PullToRefresh from './components/PullToRefresh';
+import TopProgressBar from './components/TopProgressBar';
 import { lazyWithRetry } from './utils/lazyWithRetry';
 
 const HomePage = lazyWithRetry(() => import('./pages/HomePage'));
@@ -87,10 +88,10 @@ const router = createBrowserRouter(
         <Route path="/favorites" element={<FavoritesPage />} />
         <Route path="/projects" element={<ProjectsPage />} />
         <Route path="/links" element={<LinksPage />} />
-        <Route path="/showcase" element={<Suspense fallback={<PageLoader />}><ShowcasePage /></Suspense>} />
+        <Route path="/showcase" element={<Suspense fallback={null}><ShowcasePage /></Suspense>} />
         <Route path="/messages" element={<MessagesPage />} />
-        <Route path="/page/:slug" element={<Suspense fallback={<PageLoader />}><SitePageView /></Suspense>} />
-        <Route path="*" element={<Suspense fallback={<PageLoader />}><NotFoundPage /></Suspense>} />
+        <Route path="/page/:slug" element={<Suspense fallback={null}><SitePageView /></Suspense>} />
+        <Route path="*" element={<Suspense fallback={null}><NotFoundPage /></Suspense>} />
       </Route>
       <Route path="*" element={<Suspense fallback={<PageLoader fullScreen />}><NotFoundPage standalone /></Suspense>} />
     </Route>,
@@ -103,6 +104,7 @@ export default function App() {
       <AuthProvider>
         <ErrorBoundary>
           <RouterProvider router={router} />
+          <TopProgressBar />
           <PullToRefresh />
           <Toaster />
         </ErrorBoundary>

frontend/src/api/types.ts

@@ -215,6 +215,20 @@ export const DEFAULT_ASIDE_WIDGETS: AsideWidget[] = [
   { id: 'showcase', enabled: false },
 ];
 
+export type FeedSortId = 'reply' | 'latest' | 'hot';
+
+export interface FeedSortTab {
+  id: FeedSortId;
+  label: string;
+  enabled: boolean;
+}
+
+export const DEFAULT_FEED_SORT_TABS: FeedSortTab[] = [
+  { id: 'reply', label: '新评论', enabled: true },
+  { id: 'latest', label: '新帖子', enabled: true },
+  { id: 'hot', label: '推荐帖', enabled: true },
+];
+
 export interface ForumLimits {
   post_edit_window_hours: number;
   comment_edit_window_minutes: number;
@@ -255,6 +269,8 @@ export interface ForumLimits {
   footer_show_showcase: boolean;
   /** 首页列表样式：title 仅标题 / thumbnail 缩略图 */
   feed_list_style: 'title' | 'excerpt' | 'thumbnail';
+  /** 首页排序标签：名称、顺序、启停 */
+  feed_sort_tabs: FeedSortTab[];
   /** 伪静态（固定链接）开关 */
   permalink_enabled: boolean;
   /** 伪静态后缀，不含点，如 html / htm */
@@ -285,6 +301,7 @@ export interface ForumLimitsPublic {
   nav_show_showcase: boolean;
   footer_show_showcase: boolean;
   feed_list_style: 'title' | 'excerpt' | 'thumbnail';
+  feed_sort_tabs: FeedSortTab[];
   permalink_enabled: boolean;
   permalink_ext: string;
   /** 是否上报前台路由 pageview（与后台监控采集开关同步） */

frontend/src/components/AsideCheckInStrip.tsx

@@ -1,6 +1,5 @@
 import { CalendarCheck, Check, Gift, Loader2 } from 'lucide-react';
 import { useNavigate } from 'react-router-dom';
-import { Skeleton } from '@/components/ui/skeleton';
 import { useCheckIn } from '../hooks/useCheckIn';
 import { useAuth } from '../hooks/useAuth';
 import { loginPath } from '../utils/authRedirect';
@@ -8,8 +7,13 @@ import { loginPath } from '../utils/authRedirect';
 /** 右侧栏首块底部：每日签到 */
 export default function AsideCheckInStrip() {
   const nav = useNavigate();
-  const { user } = useAuth();
-  const { status, loading, busy, doCheckIn } = useCheckIn();
+  const { user, loading: authLoading } = useAuth();
+  const { status, loading, busy, doCheckIn } = useCheckIn(!!user && !authLoading);
+
+  // 鉴权未完成：空白，避免「登录签到」→「今日已签到」闪一下
+  if (authLoading) {
+    return null;
+  }
 
   if (!user) {
     return (
@@ -37,17 +41,14 @@ export default function AsideCheckInStrip() {
     );
   }
 
-  if (loading && !status) {
-    return (
-      <div className="widget-checkin" aria-busy="true" aria-label="签到加载中">
-        <Skeleton className="widget-checkin-skeleton" />
-      </div>
-    );
+  // 登录用户：status 未到齐前不渲染最终态
+  if (loading || !status) {
+    return null;
   }
 
-  const checkedIn = !!status?.checked_in;
-  const streak = status?.streak ?? 0;
-  const todayPoints = status?.today_points ?? 5;
+  const checkedIn = !!status.checked_in;
+  const streak = status.streak ?? 0;
+  const todayPoints = status.today_points ?? 5;
 
   const meta = checkedIn
     ? (streak > 0 ? `连续 ${streak} 天 · 今日已获得 ${todayPoints} 积分` : `今日已获得 ${todayPoints} 积分`)

frontend/src/components/FeedPageSkeleton.tsx

@@ -1,29 +0,0 @@
-import { Skeleton } from '@/components/ui/skeleton';
-import PostListSkeleton from './PostListSkeleton';
-import { useForumLimits } from '../hooks/useForumLimits';
-
-/** 首页 Feed 初始骨架（排序栏 + 列表） */
-export default function FeedPageSkeleton() {
-  const { limits } = useForumLimits();
-
-  return (
-    <div className="page-wrap page-wrap--feed" aria-busy="true" aria-label="内容加载中">
-      <div className="feed-panel">
-        <div className="feed-top">
-          <div className="feed-top__bar">
-            <div className="feed-toolbar feed-toolbar--skeleton" aria-hidden>
-              <Skeleton className="skeleton--sort-tab" />
-              <Skeleton className="skeleton--sort-tab" />
-              <Skeleton className="skeleton--sort-tab" />
-              <span className="feed-toolbar__spacer" />
-              <Skeleton className="skeleton--count" />
-            </div>
-          </div>
-        </div>
-        <div className="post-list-scroll">
-          <PostListSkeleton listStyle={limits.feed_list_style ?? 'title'} />
-        </div>
-      </div>
-    </div>
-  );
-}

frontend/src/components/FeedSortBar.tsx

@@ -1,40 +1,55 @@
-import { useRef } from 'react';
+import { useMemo, useRef } from 'react';
 import { boardPath, type PermalinkOpts } from '../utils/permalink';
-import { getCachedForumLimits } from '../hooks/useForumLimits';
-import { Clock, MessageCircle, BadgeCheck } from 'lucide-react';
+import { getCachedForumLimits, useForumLimits } from '../hooks/useForumLimits';
+import { Clock, MessageCircle, BadgeCheck, Loader2 } from 'lucide-react';
 import { cn } from '@/lib/utils';
 import { moveTabIndex } from '../hooks/useOverlayA11y';
+import {
+  enabledFeedSortTabs,
+  getDefaultFeedSort,
+  normalizeFeedSortTabs,
+} from '../utils/feedSortTabs';
+import type { FeedSortTab } from '../api/types';
 
 export type FeedSort = 'latest' | 'reply' | 'hot';
 
-const SORT_OPTIONS: {
-  key: FeedSort;
-  label: string;
-  hint: string;
-  icon: typeof Clock;
-}[] = [
-  { key: 'reply', label: '新评论', hint: '最近有人评论', icon: MessageCircle },
-  { key: 'latest', label: '新帖子', hint: '按发帖时间', icon: Clock },
-  { key: 'hot', label: '推荐帖', hint: '站内推荐', icon: BadgeCheck },
-];
+const SORT_META: Record<FeedSort, { hint: string; icon: typeof Clock }> = {
+  reply: { hint: '最近有人评论', icon: MessageCircle },
+  latest: { hint: '按发帖时间', icon: Clock },
+  hot: { hint: '站内推荐', icon: BadgeCheck },
+};
 
 interface Props {
   value: FeedSort;
   onChange: (sort: FeedSort) => void;
   postTotal?: number;
+  /** 正在加载、尚未提交到画面的目标排序 */
+  pendingValue?: FeedSort | null;
 }
 
-/** 解析 URL sort；缺省为新评论（reply） */
-export function parseFeedSort(raw: string | null): FeedSort {
-  if (raw === 'latest' || raw === 'hot') return raw;
-  return 'reply';
+/** 当前配置下的默认排序（读缓存，供非 hook 路径） */
+export function getDefaultFeedSortFromCache(): FeedSort {
+  return getDefaultFeedSort(getCachedForumLimits().feed_sort_tabs);
+}
+
+/** 解析 URL sort；未启用或不合法时回落默认 */
+export function parseFeedSort(raw: string | null, tabs?: FeedSortTab[] | null): FeedSort {
+  const list = tabs ?? getCachedForumLimits().feed_sort_tabs;
+  const def = getDefaultFeedSort(list);
+  if (raw === 'latest' || raw === 'hot' || raw === 'reply') {
+    const enabled = enabledFeedSortTabs(list).some(t => t.id === raw);
+    if (enabled) return raw;
+  }
+  return def;
 }
 
 export function buildHomeUrl(
   boardId: number,
-  sort: FeedSort = 'reply',
+  sort?: FeedSort,
   opts?: { keyword?: string; tag?: string; author?: string; titleOnly?: boolean; permalink?: PermalinkOpts },
 ) {
+  const def = getDefaultFeedSortFromCache();
+  const effective = sort ?? def;
   const p = new URLSearchParams();
   const tag = opts?.tag?.trim();
   const keyword = opts?.keyword?.trim();
@@ -48,8 +63,8 @@ export function buildHomeUrl(
   } else if (author) {
     p.set('author', author);
   }
-  // 默认 reply 不写进 URL；latest / hot 显式带上
-  if (sort !== 'reply') p.set('sort', sort);
+  // 默认排序不写进 URL
+  if (effective !== def) p.set('sort', effective);
   const qs = p.toString();
 
   if (boardId) {
@@ -59,25 +74,39 @@ export function buildHomeUrl(
   return qs ? `/?${qs}` : '/';
 }
 
-export function feedSortLabel(sort: FeedSort): string {
-  return SORT_OPTIONS.find(o => o.key === sort)?.label ?? '帖子列表';
+export function feedSortLabel(sort: FeedSort, tabs?: FeedSortTab[] | null): string {
+  const list = normalizeFeedSortTabs(tabs ?? getCachedForumLimits().feed_sort_tabs);
+  return list.find(t => t.id === sort)?.label ?? '帖子列表';
 }
 
-export default function FeedSortBar({ value, onChange, postTotal }: Props) {
+export default function FeedSortBar({ value, onChange, postTotal, pendingValue }: Props) {
+  const { limits } = useForumLimits();
+  const options = useMemo(
+    () => enabledFeedSortTabs(limits.feed_sort_tabs).map(t => ({
+      key: t.id as FeedSort,
+      label: t.label,
+      hint: SORT_META[t.id]?.hint ?? '',
+      icon: SORT_META[t.id]?.icon ?? Clock,
+    })),
+    [limits.feed_sort_tabs],
+  );
+
   const listRef = useRef<HTMLDivElement>(null);
-  const activeIndex = Math.max(0, SORT_OPTIONS.findIndex(o => o.key === value));
+  const activeIndex = Math.max(0, options.findIndex(o => o.key === value));
 
   const onKeyDown = (e: React.KeyboardEvent) => {
-    const next = moveTabIndex(e.key, activeIndex, SORT_OPTIONS.length);
+    const next = moveTabIndex(e.key, activeIndex, options.length);
     if (next == null) return;
     e.preventDefault();
-    onChange(SORT_OPTIONS[next].key);
+    onChange(options[next].key);
     requestAnimationFrame(() => {
       const tabs = listRef.current?.querySelectorAll<HTMLElement>('[role="tab"]');
       tabs?.[next]?.focus();
     });
   };
 
+  if (options.length === 0) return null;
+
   return (
     <div className="feed-toolbar">
       <div
@@ -87,21 +116,27 @@ export default function FeedSortBar({ value, onChange, postTotal }: Props) {
         aria-label="帖子排序"
         onKeyDown={onKeyDown}
       >
-        {SORT_OPTIONS.map(({ key, label, hint, icon: Icon }, i) => (
-        <button
-          key={key}
-          type="button"
-          role="tab"
-          tabIndex={activeIndex === i ? 0 : -1}
-          aria-selected={value === key}
-          title={`${label} · ${hint}`}
-          className={cn('feed-sort-tab', value === key && 'active')}
-          onClick={() => onChange(key)}
-        >
-          <Icon aria-hidden />
-          <span className="feed-sort-tab__label">{label}</span>
-        </button>
-      ))}
+        {options.map(({ key, label, hint, icon: Icon }, i) => {
+          const pending = pendingValue === key;
+          return (
+            <button
+              key={key}
+              type="button"
+              role="tab"
+              tabIndex={activeIndex === i ? 0 : -1}
+              aria-selected={value === key}
+              aria-busy={pending || undefined}
+              title={`${label} · ${hint}`}
+              className={cn('feed-sort-tab', value === key && 'active', pending && 'is-pending')}
+              onClick={() => onChange(key)}
+            >
+              {pending
+                ? <Loader2 className="feed-sort-tab__spin" aria-hidden />
+                : <Icon aria-hidden />}
+              <span className="feed-sort-tab__label">{label}</span>
+            </button>
+          );
+        })}
       </div>
       {postTotal != null && (
         <span className="feed-toolbar__count">共 {postTotal} 条</span>

frontend/src/components/PageLoader.tsx

@@ -6,7 +6,7 @@ type PageLoaderProps = {
   fullScreen?: boolean;
 };
 
-/** 通用路由懒加载占位；首页请用 FeedPageSkeleton，避免非 Feed 页闪出鱼骨骨架 */
+/** 通用路由懒加载占位（后台 / 全屏独立页）；前台 MainLayout 用顶栏进度条 + 空白 */
 export default function PageLoader({ fullScreen = false }: PageLoaderProps) {
   return (
     <div

frontend/src/components/PostListItem.tsx

@@ -61,6 +61,14 @@ function PostListItem({ post, sort = 'latest', boardId = 0, onSelect }: Props) {
     openPost();
   };
 
+  const hasTypeBadge = post.post_type === 'question'
+    || post.post_type === 'poll'
+    || post.post_type === 'lottery'
+    || (post.post_type === 'bounty' && (
+      (post.bounty_status === 'open' && (post.bounty_points ?? 0) > 0)
+      || post.bounty_status === 'awarded'
+    ));
+
   const titleRow = (
     <div className="post-title-row">
       {post.pinned && (
@@ -81,31 +89,36 @@ function PostListItem({ post, sort = 'latest', boardId = 0, onSelect }: Props) {
       {post.status === 'rejected' && (
         <span className="post-status-badge post-status-badge--rejected" title="未通过">未通过</span>
       )}
-      {post.post_type === 'question' && (
-        <span
-          className={`post-qa-badge${post.question_resolved ? ' post-qa-badge--resolved' : ' post-qa-badge--open'}`}
-          title={post.question_resolved ? '已解决' : '未解决'}
-        >
-          {post.question_resolved ? '已解决' : '未解决'}
-        </span>
-      )}
-      {post.post_type === 'poll' && (
-        <span className="post-type-badge post-type-badge--poll" title="投票">投票</span>
-      )}
-      {post.post_type === 'bounty' && post.bounty_status === 'open' && (post.bounty_points ?? 0) > 0 && (
-        <span className="post-bounty-badge post-bounty-badge--open" title="悬赏">悬赏 {post.bounty_points}</span>
-      )}
-      {post.post_type === 'bounty' && post.bounty_status === 'awarded' && (
-        <span className="post-bounty-badge post-bounty-badge--awarded" title="已采纳">已采纳</span>
-      )}
-      {post.post_type === 'lottery' && (
-        <span className="post-type-badge post-type-badge--lottery" title="抽奖">
-          {post.lottery_status === 'drawn' ? '已开奖' : '抽奖'}
-        </span>
-      )}
       <a href={href} className="post-title" onClick={onTitleClick}>
         {post.title}
       </a>
+      {/* 类型徽章放标题后：flex 自动扣宽，长标题省略号紧挨徽章左侧 */}
+      {hasTypeBadge && (
+        <span className="post-title-type-badges">
+          {post.post_type === 'question' && (
+            <span
+              className={`post-qa-badge${post.question_resolved ? ' post-qa-badge--resolved' : ' post-qa-badge--open'}`}
+              title={post.question_resolved ? '已解决' : '未解决'}
+            >
+              {post.question_resolved ? '已解决' : '未解决'}
+            </span>
+          )}
+          {post.post_type === 'poll' && (
+            <span className="post-type-badge post-type-badge--poll" title="投票">投票</span>
+          )}
+          {post.post_type === 'bounty' && post.bounty_status === 'open' && (post.bounty_points ?? 0) > 0 && (
+            <span className="post-bounty-badge post-bounty-badge--open" title="悬赏">悬赏 {post.bounty_points}</span>
+          )}
+          {post.post_type === 'bounty' && post.bounty_status === 'awarded' && (
+            <span className="post-bounty-badge post-bounty-badge--awarded" title="已采纳">已采纳</span>
+          )}
+          {post.post_type === 'lottery' && (
+            <span className="post-type-badge post-type-badge--lottery" title="抽奖">
+              {post.lottery_status === 'drawn' ? '已开奖' : '抽奖'}
+            </span>
+          )}
+        </span>
+      )}
     </div>
   );
 

frontend/src/components/PostListSkeleton.tsx

@@ -1,4 +1,3 @@
-import { Skeleton } from '@/components/ui/skeleton';
 import type { ForumLimitsPublic } from '../api/types';
 
 export type FeedListStyle = ForumLimitsPublic['feed_list_style'];
@@ -11,69 +10,3 @@ export function feedListRowEstimate(style: FeedListStyle): number {
     default: return 64;
   }
 }
-
-interface Props {
-  count?: number;
-  listStyle?: FeedListStyle;
-}
-
-/** 帖子列表加载骨架屏（对齐 v2 紧凑列表） */
-export default function PostListSkeleton({ count = 8, listStyle = 'title' }: Props) {
-  const showExcerpt = listStyle === 'excerpt' || listStyle === 'thumbnail';
-  const showThumb = listStyle === 'thumbnail';
-  const titleOnly = listStyle === 'title';
-
-  return (
-    <div className="post-list-skeleton" aria-busy="true" aria-label="加载中">
-      {Array.from({ length: count }, (_, i) => {
-        const hasThumb = showThumb && i % 3 === 0;
-        return (
-          <div
-            key={i}
-            className={`post-row post-row--v2 post-row--skeleton${titleOnly ? ' post-row--title-only' : ''}${hasThumb ? ' post-row--has-thumb' : ''}`}
-          >
-            <Skeleton className="skeleton--avatar skeleton--avatar-v2" />
-            {hasThumb ? (
-              <div className="post-main post-main--with-thumb">
-                <div className="post-content">
-                  <Skeleton className="skeleton--title skeleton--title-v2" style={{ width: `${58 + (i % 4) * 9}%` }} />
-                  {showExcerpt && (
-                    <Skeleton className="skeleton--excerpt skeleton--excerpt-v2" style={{ width: `${72 + (i % 3) * 8}%` }} />
-                  )}
-                  <div className="post-meta-left post-meta-left--skeleton">
-                    <Skeleton className="skeleton--board-badge" />
-                    <Skeleton className="skeleton--meta-line" style={{ width: `${45 + (i % 3) * 10}%` }} />
-                  </div>
-                </div>
-                <div className="post-aside">
-                  <Skeleton className="skeleton--thumb skeleton--thumb-tall" />
-                  <div className="post-stats">
-                    <Skeleton className="skeleton--stat" />
-                  </div>
-                </div>
-              </div>
-            ) : (
-              <div className="post-main">
-                <div className="post-text">
-                  <Skeleton className="skeleton--title skeleton--title-v2" style={{ width: `${58 + (i % 4) * 9}%` }} />
-                  {showExcerpt && (
-                    <Skeleton className="skeleton--excerpt skeleton--excerpt-v2" style={{ width: `${72 + (i % 3) * 8}%` }} />
-                  )}
-                </div>
-                <div className="post-meta">
-                  <div className="post-meta-left post-meta-left--skeleton">
-                    <Skeleton className="skeleton--board-badge" />
-                    <Skeleton className="skeleton--meta-line" style={{ width: `${45 + (i % 3) * 10}%` }} />
-                  </div>
-                  <div className="post-stats">
-                    <Skeleton className="skeleton--stat" />
-                  </div>
-                </div>
-              </div>
-            )}
-          </div>
-        );
-      })}
-    </div>
-  );
-}

frontend/src/components/PullToRefresh.tsx

@@ -1,6 +1,6 @@
 import { useEffect, useRef, useState } from 'react';
 import { Loader2, ArrowDown } from 'lucide-react';
-import { FEED_PULL_REFRESH_EVENT } from '../utils/feedCache';
+import { softRefreshCurrentPage } from '../utils/softRefresh';
 
 /** 触发刷新的下拉距离（px） */
 const REFRESH_THRESHOLD = 68;
@@ -31,6 +31,9 @@ function pickScrollEl(): HTMLElement | null {
   const page = document.querySelector<HTMLElement>('.page-wrap:not(.page-wrap--feed)');
   if (page) return page;
 
+  const showcase = document.querySelector<HTMLElement>('.showcase-page');
+  if (showcase) return showcase.closest<HTMLElement>('.main-content') ?? showcase;
+
   const admin = document.querySelector<HTMLElement>('.admin-main');
   if (admin) return admin;
 
@@ -77,7 +80,7 @@ function isNestedScrollBlocking(target: EventTarget | null, bound: HTMLElement):
 }
 
 /**
- * 手机端下拉刷新：在内部滚动容器顶部下拉后整页重载。
+ * 手机端下拉刷新：在内部滚动容器顶部下拉后强制刷新当前页。
  * （浏览器原生 PTR 依赖 document 滚动，与本站 app-shell 布局不兼容。）
  *
  * 挂在 Router 外，故用 MutationObserver 在路由切换后重绑滚动容器。
@@ -168,19 +171,22 @@ export default function PullToRefresh() {
         setSettling(true);
         setPull(REFRESH_THRESHOLD * 0.7);
         window.setTimeout(() => {
-          // Feed 页：应用内强制重拉（保留 SPA 其它状态）；其它页仍整页 reload
-          const isFeed = !!(
-            document.querySelector('.main-content--feed-mobile-scroll')
-            || document.querySelector('.page-wrap--feed .post-list-scroll')
+          // 后台 / 登录页：整页 reload；前台：静默软刷新（无进度条，齐套后一次覆盖）
+          const isAdminOrAuth = !!(
+            document.querySelector('.admin-main')
+            || document.querySelector('.auth-page')
           );
-          if (isFeed) {
-            window.dispatchEvent(new Event(FEED_PULL_REFRESH_EVENT));
-            setRefreshing(false);
-            setSettling(true);
-            setPull(0);
+          if (isAdminOrAuth) {
+            window.location.reload();
             return;
           }
-          window.location.reload();
+          void softRefreshCurrentPage()
+            .catch(() => undefined)
+            .finally(() => {
+              setRefreshing(false);
+              setSettling(true);
+              setPull(0);
+            });
         }, 180);
         return;
       }

frontend/src/components/RightPanel.tsx

@@ -1,7 +1,6 @@
 import { useMemo } from 'react';
 import { ListTree, MessageCircle, Tags, Link2, UserPlus } from 'lucide-react';
 import { useLocation, useSearchParams, useNavigate } from 'react-router-dom';
-import { Skeleton } from '@/components/ui/skeleton';
 import { Button } from '@/components/ui/button';
 import type { AsideWidget, RecentComment, RecentUser, TagCount, User, ForumStats, FriendLink } from '../api/types';
 import type { PostHeading } from '../utils/postHeadings';
@@ -31,7 +30,7 @@ interface Props {
   tagsLoading?: boolean;
   stats?: ForumStats | null;
   onPostClick: (id: number, opts?: { floor?: number }) => void;
-  /** 首次拉取中，显示骨架避免空态闪烁 */
+  /** 首次拉取中：不渲染该块内容（由冷启动门闩保证首屏已齐或空白） */
   loading?: boolean;
   /** 右侧栏可选组件顺序与开关 */
   asideWidgets: AsideWidget[];
@@ -39,35 +38,6 @@ interface Props {
   postDetail?: PostDetailAside | null;
 }
 
-function CommentSkeleton() {
-  return (
-    <div className="widget-skeleton" aria-busy="true" aria-label="评论加载中">
-      {Array.from({ length: 5 }, (_, i) => (
-        <div key={i} className="widget-item widget-item--comment widget-item--skeleton">
-          <Skeleton className="skeleton--widget-avatar" />
-          <div className="widget-item-comment-main">
-            <Skeleton className="skeleton--widget-title" style={{ width: `${72 + (i % 3) * 8}%` }} />
-            <Skeleton className="skeleton--widget-meta" />
-          </div>
-        </div>
-      ))}
-    </div>
-  );
-}
-
-function UserSkeleton() {
-  return (
-    <div className="widget-recent-users-grid" aria-busy="true" aria-label="用户加载中">
-      {Array.from({ length: 8 }, (_, i) => (
-        <div key={i} className="widget-recent-user-cell widget-recent-user-cell--skeleton">
-          <Skeleton className="skeleton--recent-user-avatar" />
-          <Skeleton className="skeleton--recent-user-name" style={{ width: `${48 + (i % 3) * 10}%` }} />
-        </div>
-      ))}
-    </div>
-  );
-}
-
 export default function RightPanel({
   recentComments,
   recentUsers,
@@ -181,9 +151,7 @@ export default function RightPanel({
               最新评论
             </div>
             <div className="widget-card-body">
-              {loading && commentList.length === 0 ? (
-                <CommentSkeleton />
-              ) : commentList.length === 0 ? (
+              {loading && commentList.length === 0 ? null : commentList.length === 0 ? (
                 <div className="widget-empty">暂无评论</div>
               ) : commentList.map(item => (
                 <div
@@ -241,9 +209,7 @@ export default function RightPanel({
               最新注册
             </div>
             <div className="widget-card-body widget-card-body--users">
-              {loading && userList.length === 0 ? (
-                <UserSkeleton />
-              ) : userList.length === 0 ? (
+              {loading && userList.length === 0 ? null : userList.length === 0 ? (
                 <div className="widget-empty">暂无用户</div>
               ) : (
                 <div className="widget-recent-users-grid">

frontend/src/components/ShowcaseAsideWidget.tsx

@@ -3,21 +3,40 @@ import { Globe2 } from 'lucide-react';
 import { useNavigate } from 'react-router-dom';
 import { api } from '../api/client';
 import type { CommunityShowcaseItem } from '../api/types';
+import { getSessionSnapshot, setSessionSnapshot } from '../utils/sessionPageCache';
+import { PAGE_FORCE_REFRESH_EVENT } from '../utils/feedCache';
+import { PAGE_SOFT_REFRESH_COMMIT_EVENT } from '../utils/softRefresh';
+
+const SHOWCASE_KEY = 'showcase';
 
 /** 右侧栏：开源展柜精简列表 */
 export default function ShowcaseAsideWidget() {
   const nav = useNavigate();
-  const [items, setItems] = useState<CommunityShowcaseItem[]>([]);
-  const [loading, setLoading] = useState(true);
+  const cached = getSessionSnapshot<CommunityShowcaseItem[]>(SHOWCASE_KEY);
+  const [items, setItems] = useState<CommunityShowcaseItem[]>(() => cached ?? []);
+  const [loading, setLoading] = useState(() => cached === undefined);
 
   useEffect(() => {
     let cancelled = false;
+    const hit = getSessionSnapshot<CommunityShowcaseItem[]>(SHOWCASE_KEY);
+    if (hit !== undefined) {
+      setItems(hit);
+      setLoading(false);
+      return;
+    }
+    setLoading(true);
     api.communityShowcase()
       .then((r) => {
-        if (!cancelled) setItems(Array.isArray(r.items) ? r.items : []);
+        if (cancelled) return;
+        const next = Array.isArray(r.items) ? r.items : [];
+        setSessionSnapshot(SHOWCASE_KEY, next);
+        setItems(next);
       })
       .catch(() => {
-        if (!cancelled) setItems([]);
+        if (!cancelled) {
+          setSessionSnapshot(SHOWCASE_KEY, []);
+          setItems([]);
+        }
       })
       .finally(() => {
         if (!cancelled) setLoading(false);
@@ -25,6 +44,43 @@ export default function ShowcaseAsideWidget() {
     return () => { cancelled = true; };
   }, []);
 
+  useEffect(() => {
+    const fetchShowcase = (opts: { showLoading: boolean }) => {
+      if (opts.showLoading) setLoading(true);
+      api.communityShowcase()
+        .then((r) => {
+          const next = Array.isArray(r.items) ? r.items : [];
+          setSessionSnapshot(SHOWCASE_KEY, next);
+          setItems(next);
+        })
+        .catch(() => {
+          if (opts.showLoading) {
+            setSessionSnapshot(SHOWCASE_KEY, []);
+            setItems([]);
+          }
+          // 软刷新失败：保持旧 UI
+        })
+        .finally(() => setLoading(false));
+    };
+    const applyHitOrReload = (showLoading: boolean) => {
+      const hit = getSessionSnapshot<CommunityShowcaseItem[]>(SHOWCASE_KEY);
+      if (hit !== undefined) {
+        setItems(hit);
+        setLoading(false);
+        return;
+      }
+      fetchShowcase({ showLoading });
+    };
+    const onForce = () => applyHitOrReload(true);
+    const onCommit = () => applyHitOrReload(false);
+    window.addEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+    window.addEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onCommit);
+    return () => {
+      window.removeEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+      window.removeEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onCommit);
+    };
+  }, []);
+
   return (
     <div className="widget-card widget-card--showcase">
       <div className="widget-card-head widget-card-head--split">

frontend/src/components/Sidebar.tsx

@@ -6,9 +6,9 @@ import type { Board } from '../api/types';
 import type { PostHeading } from '../utils/postHeadings';
 import { useAuth } from '../hooks/useAuth';
 import { cn } from '@/lib/utils';
-import { Skeleton } from '@/components/ui/skeleton';
 import { buildHomeUrl, parseFeedSort } from './FeedSortBar';
 import { navigateFeed } from '../utils/feedCache';
+import { transitionTo } from '../utils/spaTransition';
 import BoardIconDisplay from './BoardIconDisplay';
 import { getBoardThemeIndex } from '../utils/boardTheme';
 import ArticleOutline from './ArticleOutline';
@@ -62,11 +62,11 @@ export default function Sidebar({
   const nav = useNavigate();
   const loc = useLocation();
   const [params] = useSearchParams();
-  const sort = parseFeedSort(params.get('sort'));
   const { user } = useAuth();
   const isAdmin = user?.role === 'admin';
   const { navPages } = useSitePages();
   const { limits } = useForumLimits();
+  const sort = parseFeedSort(params.get('sort'), limits.feed_sort_tabs);
   const showFriendLinksNav = limits.nav_show_friend_links !== false;
   const showShowcaseNav = !!limits.nav_show_showcase;
   const showSiteSection = navPages.length > 0 || showFriendLinksNav || showShowcaseNav;
@@ -137,22 +137,12 @@ export default function Sidebar({
       <div className="sidebar-section">浏览</div>
       <nav className="sidebar-nav">
         {feedNavLink('all', buildHomeUrl(0, sort, permalinkOpts), '全部帖子', <Home aria-hidden />, 0)}
-        {user && navItem('favorites', '我的收藏', <Star aria-hidden />, () => nav('/favorites'))}
-        {navItem('projects', '开源码桶', <FolderGit2 aria-hidden />, () => nav('/projects'))}
+        {user && navItem('favorites', '我的收藏', <Star aria-hidden />, () => void transitionTo(nav, '/favorites'))}
+        {navItem('projects', '开源码桶', <FolderGit2 aria-hidden />, () => void transitionTo(nav, '/projects'))}
       </nav>
 
       {(boardsLoading && boards.length === 0) ? (
-        <>
-          <div className="sidebar-section sidebar-section--boards">板块</div>
-          <nav className="sidebar-nav sidebar-nav--skeleton" aria-busy="true" aria-label="板块加载中">
-            {Array.from({ length: 4 }, (_, i) => (
-              <div key={i} className="sidebar-nav-item sidebar-nav-item--skeleton">
-                <Skeleton className="skeleton--sidebar-icon" />
-                <Skeleton className="skeleton--sidebar-label" style={{ width: `${58 + (i % 3) * 12}%` }} />
-              </div>
-            ))}
-          </nav>
-        </>
+        <div className="sidebar-section sidebar-section--boards">板块</div>
       ) : boards.length > 0 ? (
         <>
           <div className="sidebar-section sidebar-section--boards">板块</div>
@@ -198,10 +188,10 @@ export default function Sidebar({
         <>
           <div className="sidebar-section sidebar-section--spaced">站点</div>
           <nav className="sidebar-nav">
-            {showFriendLinksNav && navItem('links', '友情链接', <Link2 aria-hidden />, () => nav('/links'))}
-            {showShowcaseNav && navItem('showcase', '开源展柜', <Globe2 aria-hidden />, () => nav('/showcase'))}
+            {showFriendLinksNav && navItem('links', '友情链接', <Link2 aria-hidden />, () => void transitionTo(nav, '/links'))}
+            {showShowcaseNav && navItem('showcase', '开源展柜', <Globe2 aria-hidden />, () => void transitionTo(nav, '/showcase'))}
             {navPages.map(p => (
-              navItem(`page-${p.slug}`, p.title, <FileText aria-hidden />, () => nav(pagePath(p.slug, limits)))
+              navItem(`page-${p.slug}`, p.title, <FileText aria-hidden />, () => void transitionTo(nav, pagePath(p.slug, limits)))
             ))}
           </nav>
         </>

frontend/src/components/TagCloud.tsx

@@ -1,7 +1,6 @@
 import { useMemo } from 'react';
 import { useNavigate } from 'react-router-dom';
 import type { TagCount } from '../api/types';
-import { Skeleton } from '@/components/ui/skeleton';
 import { cn } from '@/lib/utils';
 
 interface Props {
@@ -63,20 +62,7 @@ export default function TagCloud({ tags, loading = false, activeTag = '' }: Prop
   }, [tags]);
 
   if (loading && tags.length === 0) {
-    return (
-      <div className="tag-cloud tag-cloud--skeleton" aria-busy="true" aria-label="标签加载中">
-        {Array.from({ length: 10 }, (_, i) => (
-          <Skeleton
-            key={i}
-            className="skeleton--tag-cloud"
-            style={{
-              width: `${42 + (i % 5) * 16}px`,
-              height: `${20 + (i % 3) * 4}px`,
-            }}
-          />
-        ))}
-      </div>
-    );
+    return null;
   }
 
   if (items.length === 0) {

frontend/src/components/TopProgressBar.tsx

@@ -0,0 +1,75 @@
+import { useEffect, useRef, useState } from 'react';
+import { subscribeSpaTransition } from '../utils/spaTransition';
+
+/**
+ * 视口顶部 2px 细进度条（类 Next.js / YouTube）。
+ * 由 spaTransition start/done 驱动，假进度爬升至约 80%，结束冲到 100%。
+ */
+export default function TopProgressBar() {
+  const [visible, setVisible] = useState(false);
+  const [width, setWidth] = useState(0);
+  const [fading, setFading] = useState(false);
+  const timerRef = useRef<ReturnType<typeof setInterval> | null>(null);
+  const fadeRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+  const activeRef = useRef(false);
+
+  useEffect(() => {
+    const clearTick = () => {
+      if (timerRef.current) {
+        clearInterval(timerRef.current);
+        timerRef.current = null;
+      }
+    };
+    const clearFade = () => {
+      if (fadeRef.current) {
+        clearTimeout(fadeRef.current);
+        fadeRef.current = null;
+      }
+    };
+
+    return subscribeSpaTransition((active) => {
+      if (active) {
+        activeRef.current = true;
+        clearFade();
+        setFading(false);
+        setVisible(true);
+        setWidth(12);
+        clearTick();
+        timerRef.current = setInterval(() => {
+          setWidth((w) => {
+            if (w >= 80) return w;
+            // 越接近 80 越慢
+            const step = Math.max(0.4, (80 - w) * 0.045);
+            return Math.min(80, w + step);
+          });
+        }, 120);
+        return;
+      }
+
+      if (!activeRef.current) return;
+      activeRef.current = false;
+      clearTick();
+      setWidth(100);
+      setFading(true);
+      clearFade();
+      fadeRef.current = setTimeout(() => {
+        setVisible(false);
+        setFading(false);
+        setWidth(0);
+      }, 220);
+    });
+  }, []);
+
+  if (!visible && width <= 0) return null;
+
+  return (
+    <div
+      className={[
+        'top-progress',
+        fading ? 'top-progress--done' : '',
+      ].filter(Boolean).join(' ')}
+      style={{ width: `${width}%` }}
+      aria-hidden
+    />
+  );
+}

frontend/src/components/VirtualPostList.tsx

@@ -4,7 +4,7 @@ import { useVirtualizer } from '@tanstack/react-virtual';
 import { Inbox, SearchX } from 'lucide-react';
 import { Button } from '@/components/ui/button';
 import PostListItem from './PostListItem';
-import PostListSkeleton, { feedListRowEstimate } from './PostListSkeleton';
+import { feedListRowEstimate } from './PostListSkeleton';
 import FeedPagination from './FeedPagination';
 import { InFlowSiteFooter } from './SiteFooter';
 import { useAuth } from '../hooks/useAuth';
@@ -14,6 +14,7 @@ import { loginPath } from '../utils/authRedirect';
 import { dispatchOpenPostSearch } from '../hooks/usePostSearch';
 import type { PostItem } from '../api/types';
 import type { FeedSort } from './FeedSortBar';
+import { getDefaultFeedSortFromCache } from './FeedSortBar';
 
 interface Props {
   posts: PostItem[];
@@ -56,7 +57,7 @@ function getMobileFeedScrollEl(): HTMLElement | null {
 
 export default function VirtualPostList({
   posts,
-  sort = 'reply',
+  sort = getDefaultFeedSortFromCache(),
   loading,
   hasMore,
   showPagination,
@@ -242,9 +243,7 @@ export default function VirtualPostList({
 
   return (
     <div className="post-list-scroll" ref={parentRef}>
-      {isInitialLoad ? (
-        <PostListSkeleton listStyle={feedStyle} />
-      ) : isEmpty ? (
+      {isInitialLoad ? null : isEmpty ? (
         <div className="empty-feed" role="status">
           {isSearchEmpty
             ? <SearchX className="empty-feed-icon" aria-hidden size={36} strokeWidth={1.5} />

frontend/src/components/admin/FeedSortTabList.tsx

@@ -0,0 +1,89 @@
+import { Pencil } from 'lucide-react';
+import { Input } from '@/components/ui/input';
+import AdminSortableList, { SortableDragHandle } from './AdminSortableList';
+import type { FeedSortId, FeedSortTab } from '../../api/types';
+import { normalizeFeedSortTabs } from '../../utils/feedSortTabs';
+
+const TAB_META: Record<FeedSortId, { hint: string; placeholder: string }> = {
+  reply: { hint: '按最后评论时间', placeholder: '新评论' },
+  latest: { hint: '按发帖时间', placeholder: '新帖子' },
+  hot: { hint: '推荐优先，再按互动', placeholder: '推荐帖' },
+};
+
+type Props = {
+  tabs: FeedSortTab[];
+  onChange: (next: FeedSortTab[]) => void;
+};
+
+export default function FeedSortTabList({ tabs, onChange }: Props) {
+  const items = normalizeFeedSortTabs(tabs);
+
+  const handleToggle = (id: FeedSortId, enabled: boolean) => {
+    const next = items.map(t => (t.id === id ? { ...t, enabled } : t));
+    // 不允许全部关闭：关掉最后一项时忽略
+    if (!enabled && !next.some(t => t.enabled)) return;
+    onChange(normalizeFeedSortTabs(next));
+  };
+
+  const handleLabel = (id: FeedSortId, label: string) => {
+    onChange(normalizeFeedSortTabs(items.map(t => (t.id === id ? { ...t, label } : t))));
+  };
+
+  return (
+    <AdminSortableList
+      items={items}
+      getId={tab => tab.id}
+      onReorder={next => onChange(normalizeFeedSortTabs(next))}
+      showMoveButtons={false}
+      className="admin-sortable-list admin-sortable-list--boxed"
+      ariaLabel="首页排序标签"
+      renderItem={(tab, _index, controls) => {
+        const meta = TAB_META[tab.id];
+        return (
+          <div
+            ref={controls.setNodeRef}
+            style={controls.style}
+            className={`admin-sortable-row admin-sortable-row--widget${controls.isDragging ? ' is-dragging' : ''}`}
+          >
+            <SortableDragHandle
+              label={`拖拽调整「${tab.label || meta.placeholder}」顺序`}
+              {...controls.dragHandleProps}
+            />
+            <div className="admin-sortable-row__main">
+              <label className="admin-sortable-row__field" htmlFor={`feed-sort-label-${tab.id}`}>
+                <span className="admin-sortable-row__field-name">显示名称</span>
+                <span className="admin-sortable-row__name-wrap">
+                  <Input
+                    id={`feed-sort-label-${tab.id}`}
+                    type="text"
+                    className="admin-sortable-row__name-input"
+                    value={tab.label}
+                    maxLength={16}
+                    placeholder={meta.placeholder}
+                    onChange={e => handleLabel(tab.id, e.target.value)}
+                    aria-describedby={`feed-sort-hint-${tab.id}`}
+                  />
+                  <Pencil className="admin-sortable-row__name-icon" size={14} aria-hidden />
+                </span>
+              </label>
+              <span className="admin-sortable-row__hint" id={`feed-sort-hint-${tab.id}`}>
+                {meta.hint}
+              </span>
+            </div>
+            <button
+              type="button"
+              id={`feed-sort-${tab.id}`}
+              role="switch"
+              aria-checked={tab.enabled}
+              aria-label={`启用「${tab.label || meta.placeholder}」`}
+              className={`admin-settings-switch${tab.enabled ? ' is-on' : ''}`}
+              onClick={() => handleToggle(tab.id, !tab.enabled)}
+            >
+              <span className="admin-settings-switch-ui" aria-hidden />
+            </button>
+          </div>
+        );
+      }}
+    />
+  );
+}

frontend/src/hooks/useAuth.tsx

@@ -1,6 +1,8 @@
-import { createContext, useContext, useEffect, useState, useCallback, ReactNode } from 'react';
+import { createContext, useContext, useEffect, useState, useCallback, useRef, ReactNode } from 'react';
 import { api } from '../api/client';
 import type { User } from '../api/types';
+import { clearAllFeedCache } from '../utils/feedCache';
+import { clearSessionSnapshots } from '../utils/sessionPageCache';
 
 interface AuthCtx {
   user: User | null;
@@ -32,6 +34,21 @@ export function AuthProvider({ children }: { children: ReactNode }) {
   // 初始化只拉一次用户信息
   useEffect(() => { refresh(); }, [refresh]);
 
+  const prevUserId = useRef<number | null | 'init'>('init');
+  useEffect(() => {
+    if (loading) return;
+    const id = user?.id ?? null;
+    if (prevUserId.current === 'init') {
+      prevUserId.current = id;
+      return;
+    }
+    if (prevUserId.current !== id) {
+      prevUserId.current = id;
+      clearSessionSnapshots();
+      clearAllFeedCache();
+    }
+  }, [user, loading]);
+
   const logout = async () => {
     await api.logout();
     setUser(null);

frontend/src/hooks/useCheckIn.ts

@@ -2,38 +2,115 @@ import { useCallback, useEffect, useState } from 'react';
 import { notify } from '@/lib/notify';
 import { api } from '../api/client';
 import type { CheckInStatus } from '../api/types';
+import { getSessionSnapshot, setSessionSnapshot } from '../utils/sessionPageCache';
+import { PAGE_FORCE_REFRESH_EVENT } from '../utils/feedCache';
+import { PAGE_SOFT_REFRESH_COMMIT_EVENT } from '../utils/softRefresh';
 import { useAuth } from './useAuth';
 
+/** 签到会话快照键（与 prefetchRoute 共用） */
+export function checkInCacheKey(userId: number) {
+  return `checkin:${userId}`;
+}
+
 /** 每日签到状态与操作（侧栏、积分页等复用） */
 export function useCheckIn(enabled = true) {
   const { user, refresh } = useAuth();
-  const [status, setStatus] = useState<CheckInStatus | null>(null);
-  const [loading, setLoading] = useState(false);
+  const userId = user?.id;
+
+  const [status, setStatus] = useState<CheckInStatus | null>(() => {
+    if (!userId || !enabled) return null;
+    return getSessionSnapshot<CheckInStatus>(checkInCacheKey(userId)) ?? null;
+  });
+  const [loading, setLoading] = useState(() => {
+    if (!userId || !enabled) return false;
+    return getSessionSnapshot<CheckInStatus>(checkInCacheKey(userId)) === undefined;
+  });
   const [busy, setBusy] = useState(false);
 
-  const load = useCallback(() => {
-    if (!user || !enabled) {
+  const load = useCallback((opts?: { force?: boolean }) => {
+    if (!userId || !enabled) {
       setStatus(null);
       setLoading(false);
       return;
     }
+    const key = checkInCacheKey(userId);
+    if (!opts?.force) {
+      const hit = getSessionSnapshot<CheckInStatus>(key);
+      if (hit !== undefined) {
+        setStatus(hit);
+        setLoading(false);
+        return;
+      }
+    }
     setLoading(true);
     api.checkInStatus()
-      .then(d => setStatus(d.check_in))
-      .catch(e => notify.error(e instanceof Error ? e.message : '加载签到状态失败'))
+      .then((d) => {
+        setSessionSnapshot(key, d.check_in);
+        setStatus(d.check_in);
+      })
+      .catch((e) => notify.error(e instanceof Error ? e.message : '加载签到状态失败'))
       .finally(() => setLoading(false));
-  }, [user, enabled]);
+  }, [userId, enabled]);
 
   useEffect(() => {
-    load();
-  }, [load]);
+    if (!userId || !enabled) {
+      setStatus(null);
+      setLoading(false);
+      return;
+    }
+    const key = checkInCacheKey(userId);
+    const hit = getSessionSnapshot<CheckInStatus>(key);
+    if (hit !== undefined) {
+      setStatus(hit);
+      setLoading(false);
+      return;
+    }
+    setStatus(null);
+    setLoading(true);
+    load({ force: true });
+  }, [userId, enabled, load]);
+
+  // 软刷新 commit：仅快照命中才盖；未命中保持旧 UI，后台静默再拉
+  useEffect(() => {
+    const applyHitOrSilent = (forceLoading: boolean) => {
+      if (!userId || !enabled) return;
+      const key = checkInCacheKey(userId);
+      const hit = getSessionSnapshot<CheckInStatus>(key);
+      if (hit !== undefined) {
+        setStatus(hit);
+        setLoading(false);
+        return;
+      }
+      if (forceLoading) {
+        load({ force: true });
+        return;
+      }
+      // 软刷新未命中：不 setLoading，静默覆盖
+      api.checkInStatus()
+        .then((d) => {
+          setSessionSnapshot(key, d.check_in);
+          setStatus(d.check_in);
+          setLoading(false);
+        })
+        .catch(() => { /* 保持旧 UI */ });
+    };
+    const onForce = () => applyHitOrSilent(true);
+    const onCommit = () => applyHitOrSilent(false);
+    window.addEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+    window.addEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onCommit);
+    return () => {
+      window.removeEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+      window.removeEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onCommit);
+    };
+  }, [userId, enabled, load]);
 
   const doCheckIn = useCallback(async () => {
-    if (!user) return;
+    if (!userId) return;
     setBusy(true);
     try {
       const r = await api.checkIn();
       notify.success(`签到成功，+${r.check_in.today_points} 积分`);
+      setSessionSnapshot(checkInCacheKey(userId), r.check_in);
       setStatus(r.check_in);
       await refresh();
     } catch (e: unknown) {
@@ -41,13 +118,13 @@ export function useCheckIn(enabled = true) {
     } finally {
       setBusy(false);
     }
-  }, [user, refresh]);
+  }, [userId, refresh]);
 
   return {
     status,
     loading,
     busy,
     doCheckIn,
-    reload: load,
+    reload: () => load({ force: true }),
   };
 }

frontend/src/hooks/useForumLimits.ts

@@ -1,7 +1,7 @@
 import { useEffect, useState } from 'react';
 import { api } from '../api/client';
 import type { ForumLimitsPublic } from '../api/types';
-import { DEFAULT_ASIDE_WIDGETS } from '../api/types';
+import { DEFAULT_ASIDE_WIDGETS, DEFAULT_FEED_SORT_TABS } from '../api/types';
 
 const DEFAULT_LIMITS: ForumLimitsPublic = {
   post_title_max: 128,
@@ -27,6 +27,7 @@ const DEFAULT_LIMITS: ForumLimitsPublic = {
   nav_show_showcase: false,
   footer_show_showcase: false,
   feed_list_style: 'title',
+  feed_sort_tabs: DEFAULT_FEED_SORT_TABS,
   permalink_enabled: false,
   permalink_ext: 'html',
   monitor_pageview: false,
@@ -79,6 +80,11 @@ export function useForumLimits() {
   return { limits, loading };
 }
 
+/** 冷启动 / 预热：确保 limits 已写入模块缓存 */
+export function ensureForumLimitsLoaded(): Promise<ForumLimitsPublic> {
+  return fetchLimits();
+}
+
 /** 清除缓存并通知已挂载的 hook 重新拉取 */
 export function invalidateForumLimitsCache() {
   cached = null;

frontend/src/hooks/usePostSearch.ts

@@ -2,6 +2,7 @@ import { useCallback, useMemo } from 'react';
 import { useLocation, useNavigate, useSearchParams } from 'react-router-dom';
 import { buildHomeUrl } from '../components/FeedSortBar';
 import { navigateFeed } from '../utils/feedCache';
+import { transitionTo } from '../utils/spaTransition';
 import { notify } from '@/lib/notify';
 import { parsePermalinkID, type PermalinkOpts } from '../utils/permalink';
 
@@ -190,7 +191,7 @@ export function usePostSearch(
     }
 
     saveRecentSearch({ keyword: kw, author, titleOnly, scopeBoardId });
-    nav(target);
+    void transitionTo(nav, target);
     return true;
   }, [nav, params, loc.pathname, limits, buildUrl]);
 

frontend/src/hooks/useSessionResource.ts

@@ -0,0 +1,144 @@
+import { useCallback, useEffect, useRef, useState } from 'react';
+import { PAGE_FORCE_REFRESH_EVENT } from '../utils/feedCache';
+import { PAGE_SOFT_REFRESH_COMMIT_EVENT } from '../utils/softRefresh';
+import {
+  getSessionSnapshot,
+  setSessionSnapshot,
+  deleteSessionSnapshot,
+} from '../utils/sessionPageCache';
+
+type Fetcher<T> = () => Promise<T>;
+
+/**
+ * 会话快照数据源：有缓存则跳过请求；无缓存时保留上一份画面直到新数据返回。
+ * 手机下拉软刷新 commit / PAGE_FORCE_REFRESH_EVENT 会应用新快照。
+ */
+export function useSessionResource<T>(
+  key: string | null,
+  fetcher: Fetcher<T>,
+  opts?: {
+    enabled?: boolean;
+    onError?: (e: unknown) => void;
+  },
+) {
+  const enabled = opts?.enabled !== false;
+  const fetcherRef = useRef(fetcher);
+  fetcherRef.current = fetcher;
+  const onErrorRef = useRef(opts?.onError);
+  onErrorRef.current = opts?.onError;
+
+  const [data, setData] = useState<T | undefined>(() =>
+    key && enabled ? getSessionSnapshot<T>(key) : undefined,
+  );
+  const [loading, setLoading] = useState(() => {
+    if (!key || !enabled) return false;
+    return getSessionSnapshot<T>(key) === undefined;
+  });
+  const [pending, setPending] = useState(false);
+  const seqRef = useRef(0);
+  const dataRef = useRef(data);
+  dataRef.current = data;
+
+  useEffect(() => {
+    if (!key || !enabled) {
+      if (!enabled) {
+        setLoading(false);
+        setPending(false);
+      }
+      return;
+    }
+
+    const hit = getSessionSnapshot<T>(key);
+    if (hit !== undefined) {
+      setData(hit);
+      setLoading(false);
+      setPending(false);
+      return;
+    }
+
+    const seq = ++seqRef.current;
+    const keep = dataRef.current !== undefined;
+    if (keep) setPending(true);
+    else setLoading(true);
+
+    fetcherRef.current()
+      .then((next) => {
+        if (seq !== seqRef.current) return;
+        setSessionSnapshot(key, next);
+        setData(next);
+      })
+      .catch((e: unknown) => {
+        if (seq !== seqRef.current) return;
+        onErrorRef.current?.(e);
+        if (!keep) setData(undefined);
+      })
+      .finally(() => {
+        if (seq !== seqRef.current) return;
+        setLoading(false);
+        setPending(false);
+      });
+
+    return () => {
+      seqRef.current += 1;
+    };
+  }, [key, enabled]);
+
+  const replace = useCallback((next: T | ((prev: T | undefined) => T)) => {
+    setData((prev) => {
+      const value = typeof next === 'function' ? (next as (p: T | undefined) => T)(prev) : next;
+      if (key) setSessionSnapshot(key, value);
+      return value;
+    });
+  }, [key]);
+
+  const invalidate = useCallback(() => {
+    if (key) deleteSessionSnapshot(key);
+  }, [key]);
+
+  useEffect(() => {
+    const reload = (opts: { allowLoading: boolean }) => {
+      if (!key || !enabled) return;
+      const warm = getSessionSnapshot<T>(key);
+      if (warm !== undefined) {
+        setData(warm);
+        setLoading(false);
+        setPending(false);
+        return;
+      }
+      const seq = ++seqRef.current;
+      const keep = dataRef.current !== undefined;
+      if (opts.allowLoading) {
+        deleteSessionSnapshot(key);
+        if (keep) setPending(true);
+        else setLoading(true);
+      }
+      fetcherRef.current()
+        .then((next) => {
+          if (seq !== seqRef.current) return;
+          setSessionSnapshot(key, next);
+          setData(next);
+        })
+        .catch((e: unknown) => {
+          if (seq !== seqRef.current) return;
+          onErrorRef.current?.(e);
+          if (opts.allowLoading && !keep) setData(undefined);
+        })
+        .finally(() => {
+          if (seq !== seqRef.current) return;
+          setLoading(false);
+          setPending(false);
+        });
+    };
+    const onForce = () => reload({ allowLoading: true });
+    // 软刷新 commit：未命中不卸 UI，后台静默再拉
+    const onCommit = () => reload({ allowLoading: false });
+    window.addEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+    window.addEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onCommit);
+    return () => {
+      window.removeEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+      window.removeEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onCommit);
+    };
+  }, [key, enabled]);
+
+  return { data, loading, pending, replace, invalidate };
+}

frontend/src/hooks/useSiteBranding.ts

@@ -123,6 +123,13 @@ export function useSiteBranding() {
   return { branding, loading };
 }
 
+/** 保留当前画面，后台重拉品牌配置（下拉刷新等） */
+export function refetchSiteBranding() {
+  inflight = null;
+  cacheEpoch += 1;
+  listeners.forEach(fn => fn());
+}
+
 /** 清除缓存并通知已挂载的 hook 重新拉取 */
 export function invalidateSiteBrandingCache() {
   cached = null;

frontend/src/hooks/useSitePages.ts

@@ -1,32 +1,60 @@
 import { useEffect, useState } from 'react';
 import { api } from '../api/client';
 import type { SitePageSummary } from '../api/types';
+import { PAGE_FORCE_REFRESH_EVENT } from '../utils/feedCache';
+import { PAGE_SOFT_REFRESH_COMMIT_EVENT } from '../utils/softRefresh';
 
 let cache: SitePageSummary[] | null = null;
 let pending: Promise<SitePageSummary[]> | null = null;
 
+/** 拉取或复用站点页摘要缓存（供冷启动门闩与 hook 共用） */
+export function ensureSitePagesLoaded(opts?: { force?: boolean }): Promise<SitePageSummary[]> {
+  if (opts?.force) {
+    cache = null;
+    pending = null;
+  }
+  if (cache) return Promise.resolve(cache);
+  if (!pending) {
+    pending = api.pages()
+      .then(d => {
+        cache = d.pages ?? [];
+        return cache;
+      })
+      .catch(() => {
+        cache = [];
+        return cache;
+      })
+      .finally(() => { pending = null; });
+  }
+  return pending;
+}
+
 /** 已发布单页摘要（页脚/侧栏导航） */
 export function useSitePages() {
   const [pages, setPages] = useState<SitePageSummary[]>(cache ?? []);
 
   useEffect(() => {
-    if (cache) {
-      setPages(cache);
-      return;
-    }
-    if (!pending) {
-      pending = api.pages()
-        .then(d => {
-          cache = d.pages ?? [];
-          return cache;
-        })
-        .catch(() => {
-          cache = [];
-          return cache;
-        })
-        .finally(() => { pending = null; });
-    }
-    pending.then(setPages);
+    const load = () => {
+      void ensureSitePagesLoaded().then(setPages);
+    };
+    if (cache) setPages(cache);
+    else load();
+
+    const onForce = () => {
+      cache = null;
+      pending = null;
+      load();
+    };
+    const onCommit = () => {
+      // 软刷新：cache 已由 prefetch 写好，同步进 state
+      void ensureSitePagesLoaded().then(setPages);
+    };
+    window.addEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+    window.addEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onCommit);
+    return () => {
+      window.removeEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+      window.removeEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onCommit);
+    };
   }, []);
 
   return {

frontend/src/layouts/MainLayout.tsx

@@ -1,6 +1,4 @@
 import { useState, useEffect, useCallback, useRef, useMemo, Suspense } from 'react';
-import PageLoader from '../components/PageLoader';
-import FeedPageSkeleton from '../components/FeedPageSkeleton';
 import { Outlet, useNavigate, useSearchParams, useLocation } from 'react-router-dom';
 import { Menu, Moon, Sun, Search, Plus, PanelRight, X, Mail, SlidersHorizontal } from 'lucide-react';
 import {
@@ -23,7 +21,12 @@ import BackToTop from '../components/BackToTop';
 import { useForumLimits } from '../hooks/useForumLimits';
 import { resolveAsideWidgets } from '../utils/asideWidgets';
 import { buildHomeUrl, parseFeedSort } from '../components/FeedSortBar';
-import { navigateFeed } from '../utils/feedCache';
+import { navigateFeed, PAGE_FORCE_REFRESH_EVENT } from '../utils/feedCache';
+import { PAGE_SOFT_REFRESH_COMMIT_EVENT } from '../utils/softRefresh';
+import { prefetchRoute, wasColdBootEnsured } from '../utils/prefetchRoute';
+import {
+  transitionTo,
+} from '../utils/spaTransition';
 import PostSearchPanel from '../components/search/PostSearchPanel';
 import {
   POST_SEARCH_OPEN_EVENT,
@@ -33,12 +36,13 @@ import { cn } from '@/lib/utils';
 import { getBoardThemeIndex } from '../utils/boardTheme';
 import { loginPath } from '../utils/authRedirect';
 import { openForumPost } from '../utils/openPost';
-import { useSiteBranding } from '../hooks/useSiteBranding';
+import { refetchSiteBranding, useSiteBranding } from '../hooks/useSiteBranding';
 import { useMonitorPageview } from '../hooks/useMonitorPageview';
 import SiteBrandMark from '../components/SiteBrandMark';
 import SiteFooter from '../components/SiteFooter';
 import { userPath } from '../utils/userPath';
 import { parsePermalinkID } from '../utils/permalink';
+import { ensureSitePagesLoaded } from '../hooks/useSitePages';
 
 export default function MainLayout() {
   const { user, loading: authLoading, logout } = useAuth();
@@ -73,15 +77,20 @@ export default function MainLayout() {
   const searchInputRef = useRef<HTMLInputElement>(null);
   const [asideLoading, setAsideLoading] = useState(() => !hasCachedAside());
   const [boardsLoading, setBoardsLoading] = useState(() => getCachedBoards().length === 0);
+  const [layoutRefreshTick, setLayoutRefreshTick] = useState(0);
   const asideEverLoaded = useRef(false);
+  /** 冷启动门闩：main.tsx 已预热则可同步放行；否则等齐再呈现 */
+  const [shellReady, setShellReady] = useState(() => isCompose || wasColdBootEnsured());
+  const coldBootDone = useRef(isCompose || wasColdBootEnsured());
+  const bootGen = useRef(0);
   const [boardId, setBoardId] = useState(() => {
     const m = loc.pathname.match(/^\/board\/(\d+(?:\.[A-Za-z0-9]{1,16})?)$/);
     if (m) return parsePermalinkID(m[1]) || 0;
     return Number(params.get('board')) || 0;
   });
   const [keywordDraft, setKeywordDraft] = useState(params.get('keyword') || '');
-  const feedSort = parseFeedSort(params.get('sort'));
   const { limits: forumLimits } = useForumLimits();
+  const feedSort = parseFeedSort(params.get('sort'), forumLimits.feed_sort_tabs);
   const postSearch = usePostSearch(forumLimits);
   const asideWidgets = useMemo(() => resolveAsideWidgets(forumLimits), [forumLimits]);
   const showTagCloud = asideWidgets.some(w => w.id === 'tag_cloud' && w.enabled);
@@ -195,6 +204,94 @@ export default function MainLayout() {
     return () => window.removeEventListener('boards-refresh', onRefresh);
   }, [refreshBoards]);
 
+  // 冷启动兜底：main 未预热时静默等齐（不打进度条）；站内已预热则保持打开
+  useEffect(() => {
+    if (isCompose) {
+      coldBootDone.current = true;
+      setShellReady(true);
+      return;
+    }
+    if (coldBootDone.current || wasColdBootEnsured()) {
+      coldBootDone.current = true;
+      setShellReady(true);
+      setBoardsLoading(false);
+      setAsideLoading(false);
+      setTagsLoading(false);
+      asideEverLoaded.current = true;
+      return;
+    }
+
+    const gen = ++bootGen.current;
+    let cancelled = false;
+
+    (async () => {
+      try {
+        const path = `${loc.pathname}${loc.search}`;
+        const tasks: Promise<unknown>[] = [
+          prefetchRoute(path, { force: false }),
+          refreshBoards(),
+          ensureSitePagesLoaded(),
+        ];
+
+        if (!hideAside) {
+          if (showRecentComments) {
+            tasks.push(
+              api.recentComments().then((d) => {
+                const next = Array.isArray(d.comments) ? d.comments : [];
+                setRecentComments(next);
+                setCachedRecentComments(next);
+              }).catch(() => undefined),
+            );
+          }
+          if (showRecentUsers) {
+            tasks.push(
+              api.recentUsers().then((d) => {
+                const next = Array.isArray(d.users) ? d.users : [];
+                setRecentUsers(next);
+                setCachedRecentUsers(next);
+              }).catch(() => undefined),
+            );
+          }
+          if (showTagCloud) {
+            tasks.push(
+              api.tags(40).then((d) => {
+                const next = Array.isArray(d.tags) ? d.tags : [];
+                setTags(next);
+                setCachedTags(next);
+              }).catch(() => undefined),
+            );
+          }
+        }
+
+        await Promise.all(tasks);
+      } catch {
+        // 失败也放行
+      } finally {
+        if (!cancelled && bootGen.current === gen) {
+          asideEverLoaded.current = true;
+          setAsideLoading(false);
+          setTagsLoading(false);
+          setBoardsLoading(false);
+          coldBootDone.current = true;
+          setShellReady(true);
+        }
+      }
+    })();
+
+    return () => {
+      cancelled = true;
+    };
+  }, [
+    isCompose,
+    loc.pathname,
+    loc.search,
+    hideAside,
+    showRecentComments,
+    showRecentUsers,
+    showTagCloud,
+    refreshBoards,
+  ]);
+
   const refreshUnreadMessages = useCallback(() => {
     if (!user) {
       setUnreadMessages(0);
@@ -216,10 +313,50 @@ export default function MainLayout() {
     };
   }, [refreshUnreadMessages]);
 
+  useEffect(() => {
+    const syncFromCache = () => {
+      // 仅当 cache 有内容时覆盖，避免空数组盖住已渲染的非空 UI
+      const nextBoards = getCachedBoards();
+      if (nextBoards.length > 0) setBoards(nextBoards);
+      setBoardsLoading(false);
+      const nextStats = getCachedStats();
+      if (nextStats) setStats(nextStats);
+      const nextComments = getCachedRecentComments();
+      if (nextComments.length > 0 || hasCachedAside()) setRecentComments(nextComments);
+      const nextUsers = getCachedRecentUsers();
+      if (nextUsers.length > 0 || hasCachedAside()) setRecentUsers(nextUsers);
+      const nextTags = getCachedTags();
+      if (nextTags.length > 0) setTags(nextTags);
+      setTagsLoading(false);
+      setAsideLoading(false);
+      asideEverLoaded.current = true;
+      refetchSiteBranding();
+      refreshUnreadMessages();
+    };
+    const onForce = () => {
+      // 旧路径：仍可能被别处派发；尽量静默刷新壳层
+      refreshBoards();
+      refreshUnreadMessages();
+      refetchSiteBranding();
+      setLayoutRefreshTick(n => n + 1);
+    };
+    const onCommit = () => {
+      // 软刷新：预热已写入 cache，同一拍同步进 state，不触发分批 loading
+      syncFromCache();
+    };
+    window.addEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+    window.addEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onCommit);
+    return () => {
+      window.removeEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+      window.removeEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onCommit);
+    };
+  }, [refreshBoards, refreshUnreadMessages]);
+
   // 标签云：进页/离开发帖页时拉取；不跟 posts-refresh 联动（置顶/推荐等不改标签）
   useEffect(() => {
     if (isCompose || !showTagCloud) return;
     let cancelled = false;
+    // 有 session 缓存则静默刷新（软刷新不卸空白）
     if (getCachedTags().length === 0) setTagsLoading(true);
     api.tags(40).then(d => {
       if (cancelled) return;
@@ -232,7 +369,7 @@ export default function MainLayout() {
     return () => {
       cancelled = true;
     };
-  }, [isCompose, showTagCloud]);
+  }, [isCompose, showTagCloud, layoutRefreshTick]);
 
   const needAsideData = !isCompose && (!hideAside || asideOpen);
   const needRecentComments = needAsideData && showRecentComments;
@@ -259,7 +396,7 @@ export default function MainLayout() {
     return () => {
       cancelled = true;
     };
-  }, [needRecentComments]);
+  }, [needRecentComments, layoutRefreshTick]);
 
   const needRecentUsers = needAsideData && showRecentUsers;
   useEffect(() => {
@@ -284,7 +421,7 @@ export default function MainLayout() {
     return () => {
       cancelled = true;
     };
-  }, [needRecentUsers]);
+  }, [needRecentUsers, layoutRefreshTick]);
 
   const doQuickSearch = () => {
     const { author, titleOnly, scopeBoardId } = postSearch.filters;
@@ -386,8 +523,8 @@ export default function MainLayout() {
               <Menu size={18} aria-hidden />
             </button>
           )}
-          {/* 点 Logo：回首页并强制刷新列表（已在首页时也会重拉） */}
-          <button type="button" className="header-brand" onClick={() => navigateFeed(nav, '/')}>
+          {/* 任意页点 Logo：回首页并强制刷新，不展示会话缓存 */}
+          <button type="button" className="header-brand" onClick={() => navigateFeed(nav, '/', { refresh: true })}>
             <SiteBrandMark branding={branding} className="header-logo-mark" />
             {!isMobile && <span className="header-logo-text">{branding.name}</span>}
           </button>
@@ -470,7 +607,7 @@ export default function MainLayout() {
             <button
               type="button"
               className="header-compose-btn"
-              onClick={() => user ? nav('/compose') : nav(loginPath('/compose'))}
+              onClick={() => user ? void transitionTo(nav, '/compose') : nav(loginPath('/compose'))}
               aria-label="发帖"
             >
               <Plus size={16} aria-hidden />
@@ -515,7 +652,7 @@ export default function MainLayout() {
                   className="header-icon-btn header-msg-btn"
                   title={unreadMessages > 0 ? `${unreadMessages} 条未读消息` : '站内消息'}
                   aria-label={unreadMessages > 0 ? `站内消息，${unreadMessages} 条未读` : '站内消息'}
-                  onClick={() => nav('/messages')}
+                  onClick={() => void transitionTo(nav, '/messages')}
                 >
                   <Mail size={18} aria-hidden />
                   {unreadMessages > 0 && (
@@ -535,14 +672,14 @@ export default function MainLayout() {
                     className="w-40"
                     onCloseAutoFocus={(e) => e.preventDefault()}
                   >
-                    <DropdownMenuItem onClick={() => nav(userPath(user.id))}>个人主页</DropdownMenuItem>
-                    <DropdownMenuItem onClick={() => nav('/profile')}>
+                    <DropdownMenuItem onClick={() => void transitionTo(nav, userPath(user.id))}>个人主页</DropdownMenuItem>
+                    <DropdownMenuItem onClick={() => void transitionTo(nav, '/profile')}>
                       账号设置{typeof user.points === 'number' ? ` · ${user.points} 积分` : ''}
                     </DropdownMenuItem>
-                    <DropdownMenuItem onClick={() => nav('/messages')}>
+                    <DropdownMenuItem onClick={() => void transitionTo(nav, '/messages')}>
                       站内消息{unreadMessages > 0 ? ` (${unreadMessages})` : ''}
                     </DropdownMenuItem>
-                    <DropdownMenuItem onClick={() => nav('/favorites')}>我的收藏</DropdownMenuItem>
+                    <DropdownMenuItem onClick={() => void transitionTo(nav, '/favorites')}>我的收藏</DropdownMenuItem>
                     {isMobile && (
                       <DropdownMenuItem onClick={toggle}>
                         {theme === 'light' ? '切换暗色模式' : '切换亮色模式'}
@@ -588,7 +725,7 @@ export default function MainLayout() {
       )}
 
       <div className={`app-body${isCompose ? ' app-body--compose' : ''}`}>
-        {!isCompose && (
+        {!isCompose && shellReady && (
           <Sidebar
             boards={boards}
             activeBoard={boardId}
@@ -602,13 +739,16 @@ export default function MainLayout() {
           isCompose && 'content-workspace--compose',
           hideAside && !isCompose && 'content-workspace--aside-hidden',
         )}>
-        <main className={cn(
-          'main-content',
-          isCompose && 'main-content--compose',
-          // 手机 Feed：整栏滚动，板块条 / 排序栏可滚出视口，多露出帖子列表
-          isMobile && !isCompose && isFeedHome && 'main-content--feed-mobile-scroll',
-        )}>
-          {isMobile && !isCompose && isFeedHome && (
+        <main
+          className={cn(
+            'main-content',
+            isCompose && 'main-content--compose',
+            // 手机 Feed：整栏滚动，板块条 / 排序栏可滚出视口，多露出帖子列表
+            isMobile && !isCompose && isFeedHome && 'main-content--feed-mobile-scroll',
+          )}
+          aria-busy={!shellReady}
+        >
+          {shellReady && isMobile && !isCompose && isFeedHome && (
             <div
               ref={boardBarRef}
               className="mobile-board-bar"
@@ -646,13 +786,16 @@ export default function MainLayout() {
               })}
             </div>
           )}
-          <Suspense fallback={isFeedHome ? <FeedPageSkeleton /> : <PageLoader />}>
-            <Outlet context={layoutCtx} />
-          </Suspense>
+          {shellReady ? (
+            <Suspense fallback={null}>
+              <Outlet context={layoutCtx} />
+            </Suspense>
+          ) : null}
         </main>
 
         {!isCompose && (
-        <aside className="aside-panel">
+        <aside className="aside-panel" aria-busy={!shellReady}>
+          {shellReady && (
           <RightPanel
             recentComments={recentComments}
             recentUsers={recentUsers}
@@ -671,6 +814,7 @@ export default function MainLayout() {
               outlineTitle: postOutline?.title,
             } : null}
           />
+          )}
         </aside>
         )}
         </div>
@@ -710,12 +854,14 @@ export default function MainLayout() {
               </button>
             </div>
             <div className="aside-drawer-body sidebar-drawer-body">
+              {shellReady && (
               <Sidebar
                 boards={boards}
                 activeBoard={boardId}
                 onSelectBoard={setBoardId}
                 boardsLoading={boardsLoading}
               />
+              )}
               <div className="sidebar-drawer-extras">
                 <button
                   type="button"

frontend/src/main.tsx

@@ -2,11 +2,21 @@ import React from 'react';
 import ReactDOM from 'react-dom/client';
 import { applyTheme, getStoredTheme } from './utils/theme';
 import App from './App';
+import { ensureColdBootReady, isMainLayoutPath } from './utils/prefetchRoute';
 
 applyTheme(getStoredTheme());
 
-ReactDOM.createRoot(document.getElementById('root')!).render(
-  <React.StrictMode>
-    <App />
-  </React.StrictMode>
-);
+async function boot() {
+  const path = `${window.location.pathname}${window.location.search}`;
+  // 前台：齐套前不挂载；完成后一次 createRoot
+  if (isMainLayoutPath(window.location.pathname)) {
+    await ensureColdBootReady(path);
+  }
+  ReactDOM.createRoot(document.getElementById('root')!).render(
+    <React.StrictMode>
+      <App />
+    </React.StrictMode>,
+  );
+}
+
+void boot();

frontend/src/pages/FavoritesPage.tsx

@@ -1,4 +1,4 @@
-import { useState, useEffect } from 'react';
+import { useEffect } from 'react';
 import { useNavigate } from 'react-router-dom';
 import { ArrowLeft, Star } from 'lucide-react';
 import { Button } from '@/components/ui/button';
@@ -7,6 +7,7 @@ import { notify } from '@/lib/notify';
 import { api } from '../api/client';
 import type { PostItem } from '../api/types';
 import { useAuth } from '../hooks/useAuth';
+import { useSessionResource } from '../hooks/useSessionResource';
 import PostListItem from '../components/PostListItem';
 import { loginPath } from '../utils/authRedirect';
 import { useForumLimits } from '../hooks/useForumLimits';
@@ -26,16 +27,19 @@ export default function FavoritesPage() {
   const { user, loading: authLoading } = useAuth();
   const { limits } = useForumLimits();
   useNoIndexSEO('我的收藏');
-  const [list, setList] = useState<FavItem[]>([]);
-  const [loading, setLoading] = useState(true);
+
+  const { data: list = [], loading } = useSessionResource<FavItem[]>(
+    user ? 'favorites' : null,
+    () => api.favorites().then(d => (Array.isArray(d.favorites) ? d.favorites as FavItem[] : [])),
+    {
+      enabled: !!user && !authLoading,
+      onError: (e) => notify.error(e instanceof Error ? e.message : '加载失败'),
+    },
+  );
 
   useEffect(() => {
     if (authLoading) return;
-    if (!user) { nav(loginPath('/favorites')); return; }
-    api.favorites()
-      .then(d => setList(Array.isArray(d.favorites) ? d.favorites as FavItem[] : []))
-      .catch(e => notify.error(e.message))
-      .finally(() => setLoading(false));
+    if (!user) nav(loginPath('/favorites'));
   }, [user, authLoading, nav]);
 
   if (authLoading || loading) return <div className="flex justify-center py-16"><Spinner size="lg" /></div>;

frontend/src/pages/HomePage.tsx

@@ -14,19 +14,20 @@ import type { LayoutCtx } from '../layouts/MainLayout';
 import VirtualPostList from '../components/VirtualPostList';
 import FeedHeader from '../components/FeedHeader';
 import FeedSearchFilters from '../components/search/FeedSearchFilters';
-import FeedPageSkeleton from '../components/FeedPageSkeleton';
 import FeedSortBar, { parseFeedSort, buildHomeUrl, type FeedSort } from '../components/FeedSortBar';
 import { useForumLimits } from '../hooks/useForumLimits';
 import { parseSearchFromUrl, usePostSearch } from '../hooks/usePostSearch';
 import {
-  clearAllFeedCache,
   navigateFeed,
   FEED_RESET_EVENT,
   FEED_PULL_REFRESH_EVENT,
   type FeedNavState,
 } from '../utils/feedCache';
+import { PAGE_SOFT_REFRESH_COMMIT_EVENT } from '../utils/softRefresh';
 import { feedCacheKey, getHomeStoreState } from '../store/homeStore';
+import { enabledFeedSortTabs, getDefaultFeedSort } from '../utils/feedSortTabs';
 import { openForumPost } from '../utils/openPost';
+import { startTransition, doneTransition } from '../utils/spaTransition';
 import { joinSEOKeywords, usePageSEO } from '../hooks/usePageSEO';
 import { siteMetaDescription, useSiteBranding } from '../hooks/useSiteBranding';
 import { boardPath, canonicalRedirectPath, parsePermalinkID } from '../utils/permalink';
@@ -95,7 +96,8 @@ export default function HomePage() {
   const tag = params.get('tag') || '';
   const author = params.get('author') || '';
   const titleOnly = params.get('title_only') === '1';
-  const sort = parseFeedSort(params.get('sort'));
+  const rawSort = params.get('sort');
+  const sort = parseFeedSort(rawSort, limits.feed_sort_tabs);
   const board = (ctx?.boards ?? []).find(b => b.id === boardId);
   const isSiteHome = !boardId && !keyword && !tag && !author;
   const siteIntro = siteMetaDescription(branding);
@@ -135,6 +137,27 @@ export default function HomePage() {
     }
   }, [queryBoardId, boardId, boardRouteId, params, nav, limits, location.pathname, location.search]);
 
+  // URL 上的 sort 已被后台关闭时，纠正为默认排序
+  useEffect(() => {
+    if (limitsLoading) return;
+    if (rawSort !== 'latest' && rawSort !== 'hot' && rawSort !== 'reply') return;
+    const stillOn = enabledFeedSortTabs(limits.feed_sort_tabs).some(t => t.id === rawSort);
+    if (stillOn) return;
+    const def = getDefaultFeedSort(limits.feed_sort_tabs);
+    nav(buildHomeUrl(boardId, def, { keyword, tag, author, titleOnly, permalink: limits }), { replace: true });
+  }, [
+    limitsLoading,
+    limits.feed_sort_tabs,
+    limits,
+    rawSort,
+    boardId,
+    keyword,
+    tag,
+    author,
+    titleOnly,
+    nav,
+  ]);
+
   const cacheKey = useMemo(
     () => feedCacheKey({ boardId, keyword, sort, tag, author, titleOnly }),
     [boardId, keyword, sort, tag, author, titleOnly],
@@ -151,25 +174,40 @@ export default function HomePage() {
   const [postTotal, setPostTotal] = useState(initial.postTotal);
   const [page, setPage] = useState(initial.page);
   const [loading, setLoading] = useState(initial.loading);
+  /** 画面上已提交的筛选（URL 已变但数据未到时仍画上一份） */
+  const [view, setView] = useState({
+    cacheKey,
+    sort,
+    boardId,
+    keyword,
+    tag,
+    author,
+    titleOnly,
+  });
+  const [listPending, setListPending] = useState(false);
   const [restoreScrollTop, setRestoreScrollTop] = useState<number | null>(
     initial.posts.length > 0 ? initial.scrollTop : null,
   );
   const [listResetKey, setListResetKey] = useState(0);
 
   const scrollTopRef = useRef(initial.scrollTop);
-  const loadingRef = useRef(false);
+  const fetchSeqRef = useRef(0);
   const pageRef = useRef(initial.page);
   const cacheKeyRef = useRef(cacheKey);
+  const viewKeyRef = useRef(view.cacheKey);
+  const postsRef = useRef(posts);
   const scrollRafRef = useRef(0);
   /** 当前筛选键是否已完成「进入页」水合（避免 effect 重跑时反复 setRestoreScrollTop） */
   const hydratedKeyRef = useRef<string | null>(null);
   pageRef.current = page;
   cacheKeyRef.current = cacheKey;
+  viewKeyRef.current = view.cacheKey;
+  postsRef.current = posts;
 
-  // 筛选键切换：用新键的缓存重置本地 state（useMemo initial 不会自动 setState）
-  useEffect(() => {
-    const next = readHydrate(boardId, keyword, sort, tag, author, titleOnly);
-    hydratedKeyRef.current = null;
+  const commitDisplayed = useCallback((
+    next: FeedHydrate,
+    meta: { cacheKey: string; sort: FeedSort; boardId: number; keyword: string; tag: string; author: string; titleOnly: boolean },
+  ) => {
     setPosts(next.posts);
     setPostTotal(next.postTotal);
     setPage(next.page);
@@ -177,7 +215,30 @@ export default function HomePage() {
     scrollTopRef.current = next.scrollTop;
     setRestoreScrollTop(next.posts.length > 0 ? next.scrollTop : null);
     setLoading(next.loading);
-  }, [cacheKey, boardId, keyword, sort, tag, author, titleOnly]);
+    setListPending(false);
+    setView(meta);
+  }, []);
+
+  // 筛选键切换：有快照则立刻换页；否则保留当前画面等请求结束
+  useEffect(() => {
+    if ((location.state as FeedNavState | null)?.refreshFeed && navType !== 'POP') {
+      hydratedKeyRef.current = null;
+      return;
+    }
+    const next = readHydrate(boardId, keyword, sort, tag, author, titleOnly);
+    if (next.posts.length > 0) {
+      hydratedKeyRef.current = cacheKey;
+      commitDisplayed(next, { cacheKey, sort, boardId, keyword, tag, author, titleOnly });
+      return;
+    }
+    hydratedKeyRef.current = null;
+    if (postsRef.current.length > 0) {
+      setListPending(true);
+      setLoading(false);
+      return;
+    }
+    commitDisplayed(next, { cacheKey, sort, boardId, keyword, tag, author, titleOnly });
+  }, [cacheKey, boardId, keyword, sort, tag, author, titleOnly, commitDisplayed, location.state, navType]);
 
   const totalPages = Math.max(1, Math.ceil(Math.max(postTotal, 0) / pageSize));
   const showPagination = totalPages > 1 && posts.length > 0;
@@ -189,9 +250,8 @@ export default function HomePage() {
     setListResetKey(k => k + 1);
   }, []);
 
-  /** 强制刷新：清空全部 Feed 缓存并滚回顶部 */
+  /** 同筛选强制刷新：只复位滚动，保留旧列表直到 loadFirst 覆盖 */
   const beginFeedRefresh = useCallback(() => {
-    clearAllFeedCache();
     resetFeedView();
   }, [resetFeedView]);
 
@@ -200,9 +260,9 @@ export default function HomePage() {
     nextPosts: PostItem[],
     nextTotal: number,
     nextPage: number,
-    opts?: { scrollTop?: number; touchFetchTime?: boolean },
+    opts?: { scrollTop?: number; touchFetchTime?: boolean; key?: string },
   ) => {
-    const key = cacheKeyRef.current;
+    const key = opts?.key ?? cacheKeyRef.current;
     const prev = getHomeStoreState().getFeed(key);
     getHomeStoreState().setFeed(key, {
       posts: nextPosts,
@@ -215,12 +275,14 @@ export default function HomePage() {
     });
   }, []);
 
-  const fetchPage = useCallback(async (p: number, opts?: { silent?: boolean }) => {
-    if (loadingRef.current) return;
-    loadingRef.current = true;
+  const fetchPage = useCallback(async (p: number, opts?: { silent?: boolean; resetScroll?: boolean }) => {
+    const seq = ++fetchSeqRef.current;
+    const requestKey = cacheKeyRef.current;
     const silent = !!opts?.silent;
-    // 静默刷新：保留现有列表，不展示加载骨架
-    if (!silent) setLoading(true);
+    const keepView = postsRef.current.length > 0;
+    // 有旧列表时不卸页，只标 pending
+    if (!silent && !keepView) setLoading(true);
+    if (!silent && keepView) setListPending(true);
     try {
       const data = await api.posts({
         page: p,
@@ -232,42 +294,53 @@ export default function HomePage() {
         title_only: !tag && titleOnly ? '1' : '',
         sort,
       });
+      if (seq !== fetchSeqRef.current) return;
       const batch = Array.isArray(data.posts) ? data.posts : [];
       const total = data.total ?? 0;
+      const jumpTop = opts?.resetScroll || (keepView && requestKey !== viewKeyRef.current);
+      const scrollTop = jumpTop ? 0 : scrollTopRef.current;
+      if (jumpTop) {
+        setRestoreScrollTop(null);
+        scrollTopRef.current = 0;
+        setListResetKey(k => k + 1);
+      }
       setPosts(batch);
       setPostTotal(total);
       setPage(p);
       pageRef.current = p;
-      persistFeed(batch, total, p, { touchFetchTime: true });
+      setView({ cacheKey: requestKey, sort, boardId, keyword, tag, author, titleOnly });
+      persistFeed(batch, total, p, { scrollTop, touchFetchTime: true, key: requestKey });
     } catch (e: unknown) {
+      if (seq !== fetchSeqRef.current) return;
       if (!silent) {
         notify.error(e instanceof Error ? e.message : '加载失败');
-        setPosts([]);
-        setPostTotal(0);
-        setPage(1);
-        pageRef.current = 1;
+        if (!keepView) {
+          setPosts([]);
+          setPostTotal(0);
+          setPage(1);
+          pageRef.current = 1;
+        }
       }
     } finally {
-      loadingRef.current = false;
-      setLoading(false);
+      if (seq === fetchSeqRef.current) {
+        setLoading(false);
+        setListPending(false);
+      }
     }
   }, [boardId, keyword, tag, author, titleOnly, sort, pageSize, persistFeed]);
 
   const loadFirst = useCallback(() => fetchPage(1), [fetchPage]);
 
   const goToPage = useCallback((p: number) => {
-    if (loadingRef.current) return;
     const maxPage = Math.max(1, Math.ceil(Math.max(postTotal, 0) / pageSize));
     if (p < 1 || p > maxPage) return;
     if (p === pageRef.current) return;
-    resetFeedView();
-    getHomeStoreState().patchScroll(cacheKeyRef.current, 0);
-    fetchPage(p);
-  }, [fetchPage, postTotal, pageSize, resetFeedView]);
+    void fetchPage(p, { resetScroll: true });
+  }, [fetchPage, postTotal, pageSize]);
 
   const handleSelectPost = useCallback((id: number) => {
     // 离开前再写一次滚动，确保详情页返回可还原
-    getHomeStoreState().patchScroll(cacheKeyRef.current, scrollTopRef.current);
+    getHomeStoreState().patchScroll(viewKeyRef.current, scrollTopRef.current);
     openForumPost(nav, id, limits.open_posts_in_new_tab);
   }, [nav, limits.open_posts_in_new_tab]);
 
@@ -278,14 +351,26 @@ export default function HomePage() {
     const forceRefresh = (location.state as FeedNavState | null)?.refreshFeed;
     // 浏览器后退/前进（POP）忽略 history 上残留的 refreshFeed，避免误清空缓存
     if (forceRefresh && navType !== 'POP') {
+      fetchSeqRef.current += 1;
       hydratedKeyRef.current = cacheKey;
-      beginFeedRefresh();
-      setPosts([]);
-      setPostTotal(0);
-      setPage(1);
-      pageRef.current = 1;
-      setLoading(true);
-      loadFirst();
+      // 预取已写入 store：整页替换，不卸成骨架
+      resetFeedView();
+      const warm = getHomeStoreState().getFeed(cacheKey);
+      if (warm && warm.posts.length > 0) {
+        commitDisplayed({
+          posts: warm.posts,
+          postTotal: warm.postTotal,
+          page: warm.page,
+          scrollTop: 0,
+          loading: false,
+        }, { cacheKey, sort, boardId, keyword, tag, author, titleOnly });
+      } else {
+        // 预取失败时保留旧列表并重拉
+        setListPending(postsRef.current.length > 0);
+        if (postsRef.current.length === 0) setLoading(true);
+        setView({ cacheKey, sort, boardId, keyword, tag, author, titleOnly });
+        loadFirst();
+      }
       // 消费后清掉 state，防止该 history 条目永远带着刷新标记
       nav(`${location.pathname}${location.search}${location.hash}`, { replace: true, state: null });
       return;
@@ -300,26 +385,31 @@ export default function HomePage() {
     if (cached && cached.posts.length > 0) {
       const needRestore = hydratedKeyRef.current !== cacheKey;
       hydratedKeyRef.current = cacheKey;
-      setPosts(cached.posts);
-      setPostTotal(cached.postTotal);
-      setPage(cached.page);
-      pageRef.current = cached.page;
-      setLoading(false);
-      // 仅在「首次进入该筛选」时恢复滚动，避免 limits/pageSize 变化导致 effect 重跑时打断用户滚动
       if (needRestore) {
-        setRestoreScrollTop(cached.scrollTop);
-        scrollTopRef.current = cached.scrollTop;
-      }
-      // 超过 TTL：后台静默刷新，不重置滚动
-      if (getHomeStoreState().isStale(cacheKey)) {
-        void fetchPage(cached.page, { silent: true });
+        commitDisplayed({
+          posts: cached.posts,
+          postTotal: cached.postTotal,
+          page: cached.page,
+          scrollTop: cached.scrollTop,
+          loading: false,
+        }, { cacheKey, sort, boardId, keyword, tag, author, titleOnly });
+      } else {
+        setPosts(cached.posts);
+        setPostTotal(cached.postTotal);
+        setPage(cached.page);
+        pageRef.current = cached.page;
+        setLoading(false);
+        setListPending(false);
+        setView({ cacheKey, sort, boardId, keyword, tag, author, titleOnly });
       }
       return;
     }
 
     hydratedKeyRef.current = cacheKey;
-    setRestoreScrollTop(null);
-    scrollTopRef.current = 0;
+    if (postsRef.current.length === 0) {
+      setRestoreScrollTop(null);
+      scrollTopRef.current = 0;
+    }
     loadFirst();
   }, [
     limitsLoading,
@@ -333,36 +423,68 @@ export default function HomePage() {
     navType,
     nav,
     loadFirst,
-    fetchPage,
-    beginFeedRefresh,
+    commitDisplayed,
+    resetFeedView,
     isInvalidBoardRoute,
     isMissingBoard,
+    sort,
+    boardId,
+    keyword,
+    tag,
+    author,
+    titleOnly,
   ]);
 
   useEffect(() => {
-    const onFeedReset = () => beginFeedRefresh();
+    // Logo 等同 URL 强制刷新：仅复位滚动，不卸列表（数据由 transitionTo 预热）
+    const onFeedReset = () => {
+      fetchSeqRef.current += 1;
+      resetFeedView();
+    };
     window.addEventListener(FEED_RESET_EVENT, onFeedReset);
     return () => window.removeEventListener(FEED_RESET_EVENT, onFeedReset);
-  }, [beginFeedRefresh]);
+  }, [resetFeedView]);
 
   useEffect(() => {
-    // Logo / 下拉刷新 / 后台改帖：清空本地列表以露出骨架，再强制拉第 1 页
-    const fn = () => {
-      beginFeedRefresh();
-      setPosts([]);
-      setPostTotal(0);
-      setPage(1);
-      pageRef.current = 1;
+    // 下拉 / posts-refresh / 软刷新 commit：有预热则一次覆盖；禁止先卸列表
+    const applyWarmOrReload = () => {
+      fetchSeqRef.current += 1;
+      const key = cacheKeyRef.current;
+      const warm = getHomeStoreState().getFeed(key);
+      if (warm && warm.posts.length > 0) {
+        // 先写入新数据，再复位滚动（避免先 reset 造成空白闪一下）
+        commitDisplayed({
+          posts: warm.posts,
+          postTotal: warm.postTotal,
+          page: warm.page,
+          scrollTop: 0,
+          loading: false,
+        }, { cacheKey: key, sort, boardId, keyword, tag, author, titleOnly });
+        setListResetKey((k) => k + 1);
+        return;
+      }
+      // 未命中：保留旧 posts，静默重拉
+      if (postsRef.current.length > 0) {
+        setListPending(true);
+        setLoading(false);
+        void loadFirst();
+        return;
+      }
       setLoading(true);
-      loadFirst();
+      void loadFirst();
     };
-    window.addEventListener('posts-refresh', fn);
-    window.addEventListener(FEED_PULL_REFRESH_EVENT, fn);
+    window.addEventListener('posts-refresh', applyWarmOrReload);
+    window.addEventListener(FEED_PULL_REFRESH_EVENT, applyWarmOrReload);
+    window.addEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, applyWarmOrReload);
     return () => {
-      window.removeEventListener('posts-refresh', fn);
-      window.removeEventListener(FEED_PULL_REFRESH_EVENT, fn);
+      window.removeEventListener('posts-refresh', applyWarmOrReload);
+      window.removeEventListener(FEED_PULL_REFRESH_EVENT, applyWarmOrReload);
+      window.removeEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, applyWarmOrReload);
     };
-  }, [beginFeedRefresh, loadFirst]);
+  }, [
+    commitDisplayed, loadFirst,
+    sort, boardId, keyword, tag, author, titleOnly,
+  ]);
 
   // 卸载时取消未执行的 scroll rAF
   useEffect(() => () => {
@@ -375,22 +497,23 @@ export default function HomePage() {
     if (scrollRafRef.current) return;
     scrollRafRef.current = requestAnimationFrame(() => {
       scrollRafRef.current = 0;
-      getHomeStoreState().patchScroll(cacheKeyRef.current, scrollTopRef.current);
+      getHomeStoreState().patchScroll(viewKeyRef.current, scrollTopRef.current);
     });
   }, []);
 
   const handleSortChange = (next: FeedSort) => {
     if (next === sort) {
+      const tid = startTransition();
       beginFeedRefresh();
-      loadFirst();
+      void Promise.resolve(loadFirst()).finally(() => doneTransition(tid));
       return;
     }
     navigateFeed(nav, buildHomeUrl(boardId, next, { keyword, tag, author, titleOnly, permalink: limits }));
   };
 
-  const showSortBar = !keyword && !tag && !author;
+  const showSortBar = !view.keyword && !view.tag && !view.author;
   const searchFilters = parseSearchFromUrl(location.pathname, params);
-  const isSearchActive = !!(keyword || author);
+  const isSearchActive = !!(view.keyword || view.author);
 
   if (isInvalidBoardRoute || isMissingBoard) {
     return (
@@ -401,9 +524,9 @@ export default function HomePage() {
     );
   }
 
-  // 首屏用同构骨架，避免标题/列表分区先后出现造成闪动
+  // 冷启动由门闩 / ensureColdBootReady 挡住；有旧列表时软刷新绝不卸空
   if ((loading || limitsLoading || (isBoardRoute && boardsLoading)) && posts.length === 0) {
-    return <FeedPageSkeleton />;
+    return null;
   }
 
   return (
@@ -412,14 +535,19 @@ export default function HomePage() {
         <div className="feed-top">
           <div className="feed-top__bar">
             <FeedHeader
-              keyword={keyword}
-              tag={tag}
-              author={author}
+              keyword={view.keyword}
+              tag={view.tag}
+              author={view.author}
               postTotal={postTotal}
               titleAs={isSiteHome ? 'h2' : 'h1'}
             />
             {showSortBar && (
-              <FeedSortBar value={sort} onChange={handleSortChange} postTotal={postTotal} />
+              <FeedSortBar
+                value={view.sort}
+                pendingValue={listPending ? sort : null}
+                onChange={handleSortChange}
+                postTotal={postTotal}
+              />
             )}
           </div>
           {isSearchActive && (
@@ -433,8 +561,8 @@ export default function HomePage() {
         </div>
         <VirtualPostList
           posts={posts}
-          sort={sort}
-          loading={loading || limitsLoading}
+          sort={view.sort}
+          loading={listPending ? false : (loading || limitsLoading)}
           hasMore={hasMore}
           showPagination={showPagination}
           page={page}
@@ -446,15 +574,15 @@ export default function HomePage() {
           resetScrollKey={listResetKey}
           onScrollTopChange={handleScrollTopChange}
           onScrollRestored={() => setRestoreScrollTop(null)}
-          keyword={keyword || tag || author}
-          isSearchMode={!!(keyword || author)}
-          searchKeyword={keyword}
-          searchAuthor={author}
-          searchTitleOnly={titleOnly}
+          keyword={view.keyword || view.tag || view.author}
+          isSearchMode={!!(view.keyword || view.author)}
+          searchKeyword={view.keyword}
+          searchAuthor={view.author}
+          searchTitleOnly={view.titleOnly}
           searchScopeBoardId={searchFilters.scopeBoardId}
           onClearSearch={postSearch.clearSearch}
-          boardId={boardId}
-          boardName={ctx?.boards?.find(b => b.id === boardId)?.name || ''}
+          boardId={view.boardId}
+          boardName={ctx?.boards?.find(b => b.id === view.boardId)?.name || ''}
           noBoards={!ctx?.boardsLoading && (ctx?.boards?.length ?? 0) === 0}
         />
       </div>

frontend/src/pages/LinksPage.tsx

@@ -15,6 +15,7 @@ import { loginPath } from '../utils/authRedirect';
 import { resolveFriendLinkLogo, isReciprocalChecking, reciprocalStatusLabel } from '../utils/friendLink';
 import { InFlowSiteFooter } from '../components/SiteFooter';
 import FriendLinkApplyDialog from '../components/FriendLinkApplyDialog';
+import { useSessionResource } from '../hooks/useSessionResource';
 
 const APPLY_STATUS_ORDER: Record<FriendLinkApply['status'], number> = {
   pending: 0,
@@ -48,8 +49,6 @@ export default function LinksPage() {
   const { user } = useAuth();
   const [applyOpen, setApplyOpen] = useState(false);
   const [editApply, setEditApply] = useState<FriendLinkApply | null>(null);
-  const [myApplies, setMyApplies] = useState<FriendLinkApply[]>([]);
-  const [myLoading, setMyLoading] = useState(false);
   const [cancelingId, setCancelingId] = useState<number | null>(null);
 
   usePageSEO({
@@ -63,6 +62,15 @@ export default function LinksPage() {
     (l: FriendLink) => l.name?.trim() && l.url?.trim(),
   );
 
+  const { data: myApplies = [], loading: myLoading, replace: setMyApplies } = useSessionResource<FriendLinkApply[]>(
+    user ? 'links:applies' : null,
+    () => api.myFriendLinkApplies().then(r => r.applies ?? []),
+    {
+      enabled: !!user,
+      onError: (e) => notify.error(e instanceof Error ? e.message : '加载失败'),
+    },
+  );
+
   const sortedApplies = useMemo(
     () => [...myApplies].sort((a, b) => {
       const byStatus = APPLY_STATUS_ORDER[a.status] - APPLY_STATUS_ORDER[b.status];
@@ -98,16 +106,10 @@ export default function LinksPage() {
       setMyApplies([]);
       return;
     }
-    setMyLoading(true);
     api.myFriendLinkApplies()
       .then(r => setMyApplies(r.applies ?? []))
-      .catch(e => notify.error(e instanceof Error ? e.message : '加载失败'))
-      .finally(() => setMyLoading(false));
-  }, [user]);
-
-  useEffect(() => {
-    loadMyApplies();
-  }, [loadMyApplies]);
+      .catch(e => notify.error(e instanceof Error ? e.message : '加载失败'));
+  }, [user, setMyApplies]);
 
   useEffect(() => {
     if (!user || !myApplies.some(isReciprocalChecking)) return;

frontend/src/pages/MessagesPage.tsx

@@ -14,8 +14,14 @@ import { postPath } from '../utils/permalink';
 import { userPath } from '../utils/userPath';
 import { InFlowSiteFooter } from '../components/SiteFooter';
 import { cn } from '@/lib/utils';
+import { getSessionSnapshot, setSessionSnapshot, deleteSessionSnapshot } from '../utils/sessionPageCache';
+import { PAGE_FORCE_REFRESH_EVENT } from '../utils/feedCache';
+import { PAGE_SOFT_REFRESH_COMMIT_EVENT } from '../utils/softRefresh';
 
 type MsgTab = 'dm' | 'notify';
+type ConvSnap = { conversations: MessageConversation[]; total: number; page: number };
+type NotifySnap = { notifications: PrivateMessage[]; total: number; page: number };
+type ThreadSnap = { messages: PrivateMessage[]; total: number; peerUser: User | null };
 
 const NOTIFY_KINDS = [
   { key: 'all', label: '全部' },
@@ -136,11 +142,28 @@ export default function MessagesPage() {
   }, []);
 
   const loadConversations = useCallback(async (page = 1, append = false) => {
+    const key = `messages:conv:${page}`;
+    if (!append) {
+      const hit = getSessionSnapshot<ConvSnap>(key);
+      if (hit) {
+        setConversations(hit.conversations);
+        setConvTotal(hit.total);
+        setConvPage(hit.page);
+        setListLoading(false);
+        return;
+      }
+    }
     setListLoading(true);
     try {
       const r = await api.messageConversations({ page, size: 30 });
       const next = r.conversations || [];
-      setConversations((prev) => (append ? [...prev, ...next] : next));
+      setConversations((prev) => {
+        const merged = append ? [...prev, ...next] : next;
+        if (!append) {
+          setSessionSnapshot(key, { conversations: merged, total: r.total || 0, page: r.page || page });
+        }
+        return merged;
+      });
       setConvTotal(r.total || 0);
       setConvPage(r.page || page);
     } catch (e: unknown) {
@@ -151,6 +174,17 @@ export default function MessagesPage() {
   }, []);
 
   const loadNotifications = useCallback(async (page = 1, append = false, kind = 'all') => {
+    const key = `messages:notify:${kind}:${page}`;
+    if (!append) {
+      const hit = getSessionSnapshot<NotifySnap>(key);
+      if (hit) {
+        setNotifications(hit.notifications);
+        setNotifyTotal(hit.total);
+        setNotifyPage(hit.page);
+        setNotifyLoading(false);
+        return;
+      }
+    }
     setNotifyLoading(true);
     try {
       const r = await api.messageNotifications({
@@ -164,7 +198,9 @@ export default function MessagesPage() {
       // 打开通知页时标已读（首屏）
       if (!append && page === 1) {
         await api.markNotificationsRead().catch(() => undefined);
-        setNotifications(next.map((m) => ({ ...m, is_read: true })));
+        const marked = next.map((m) => ({ ...m, is_read: true }));
+        setNotifications(marked);
+        setSessionSnapshot(key, { notifications: marked, total: r.total || 0, page: r.page || page });
         setNotifyUnread(0);
         window.dispatchEvent(new Event('messages-unread-refresh'));
       } else {
@@ -177,20 +213,47 @@ export default function MessagesPage() {
     }
   }, []);
 
+  const [threadEpoch, setThreadEpoch] = useState(0);
+
   useEffect(() => {
     if (authLoading) return;
     if (!user) {
       nav(loginPath('/messages'));
       return;
     }
-    void refreshUnreadSplit();
     if (tab === 'dm') {
+      if (!getSessionSnapshot('messages:conv:1')) void refreshUnreadSplit();
       loadConversations(1);
     } else {
+      if (!getSessionSnapshot(`messages:notify:${notifyKind}:1`)) void refreshUnreadSplit();
       loadNotifications(1, false, notifyKind);
     }
   }, [user, authLoading, nav, tab, notifyKind, loadConversations, loadNotifications, refreshUnreadSplit]);
 
+  useEffect(() => {
+    const onForce = () => {
+      // 下拉预热会话列表后直接重读；线程快照需作废以便重拉
+      void refreshUnreadSplit();
+      if (tab === 'dm') {
+        void loadConversations(1);
+        if (peerSelected && selectedPeer !== null) {
+          deleteSessionSnapshot(`messages:thread:${selectedPeer}`);
+          setThreadEpoch(n => n + 1);
+        }
+      } else {
+        // 通知列表：预热未覆盖 kind，作废后重拉
+        deleteSessionSnapshot(`messages:notify:${notifyKind}:1`);
+        void loadNotifications(1, false, notifyKind);
+      }
+    };
+    window.addEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+    window.addEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onForce);
+    return () => {
+      window.removeEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+      window.removeEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onForce);
+    };
+  }, [tab, notifyKind, peerSelected, selectedPeer, loadConversations, loadNotifications, refreshUnreadSplit]);
+
   const scrollToBottom = useCallback((smooth = false) => {
     requestAnimationFrame(() => {
       threadEndRef.current?.scrollIntoView({ behavior: smooth ? 'smooth' : 'auto', block: 'end' });
@@ -204,15 +267,30 @@ export default function MessagesPage() {
       setMsgTotal(0);
       return;
     }
+    const cached = getSessionSnapshot<ThreadSnap>(`messages:thread:${selectedPeer}`);
+    if (cached) {
+      setMessages(cached.messages);
+      setMsgTotal(cached.total);
+      setPeerUser(cached.peerUser);
+      setThreadLoading(false);
+      return;
+    }
     let cancelled = false;
     setThreadLoading(true);
     stickToBottomRef.current = true;
     api.conversationMessages(selectedPeer, { size: 50 })
       .then((r) => {
         if (cancelled) return;
-        setMessages(r.messages || []);
+        const messages = r.messages || [];
+        const peer = r.peer_user || null;
+        setMessages(messages);
         setMsgTotal(r.total || 0);
-        setPeerUser(r.peer_user || null);
+        setPeerUser(peer);
+        setSessionSnapshot(`messages:thread:${selectedPeer}`, {
+          messages,
+          total: r.total || 0,
+          peerUser: peer,
+        });
         setConversations((prev) => prev.map((c) => (
           c.peer_user_id === selectedPeer ? { ...c, unread_count: 0 } : c
         )));
@@ -226,7 +304,7 @@ export default function MessagesPage() {
         if (!cancelled) setThreadLoading(false);
       });
     return () => { cancelled = true; };
-  }, [user, peerSelected, selectedPeer, refreshUnreadSplit]);
+  }, [user, peerSelected, selectedPeer, refreshUnreadSplit, threadEpoch]);
 
   useEffect(() => {
     if (!threadLoading && stickToBottomRef.current) {
@@ -321,7 +399,17 @@ export default function MessagesPage() {
     try {
       const r = await api.sendMessage({ to_user_id: selectedPeer, content });
       stickToBottomRef.current = true;
-      setMessages((prev) => [...prev, r.message]);
+      setMessages((prev) => {
+        const next = [...prev, r.message];
+        if (selectedPeer != null) {
+          setSessionSnapshot(`messages:thread:${selectedPeer}`, {
+            messages: next,
+            total: msgTotal + 1,
+            peerUser,
+          });
+        }
+        return next;
+      });
       setMsgTotal((n) => n + 1);
       setDraft('');
       setConversations((prev) => {
@@ -335,7 +423,9 @@ export default function MessagesPage() {
           unread_count: 0,
           updated_at: r.message.created_at,
         };
-        return [next, ...rest];
+        const merged = [next, ...rest];
+        setSessionSnapshot('messages:conv:1', { conversations: merged, total: convTotal, page: 1 });
+        return merged;
       });
       scrollToBottom(true);
     } catch (e: unknown) {

frontend/src/pages/PostDetailPage.tsx

@@ -1,5 +1,5 @@
 import { useState, useEffect, useLayoutEffect, useRef, useCallback } from 'react';
-import { useParams, useNavigate, useOutletContext, useLocation } from 'react-router-dom';
+import { useParams, useNavigate, useOutletContext, useLocation, useNavigationType } from 'react-router-dom';
 import { ArrowLeft, ThumbsUp, Star, Lock, MessageSquare, MessageSquareOff, Flag, MoreHorizontal } from 'lucide-react';
 import FeaturedIcon from '@/components/FeaturedIcon';
 import { Button } from '@/components/ui/button';
@@ -51,7 +51,9 @@ import { getCachedSiteBranding } from '../hooks/useSiteBranding';
 import { formatDateTime, isTimeDiffSignificant } from '../utils/content';
 import { collectCommentSubtreeIds } from '../utils/comment';
 import { loadMyCommentIds } from '../utils/guest';
-import { clearAllFeedCache } from '../utils/feedCache';
+import { clearAllFeedCache, PAGE_FORCE_REFRESH_EVENT } from '../utils/feedCache';
+import { PAGE_SOFT_REFRESH_COMMIT_EVENT } from '../utils/softRefresh';
+import { deleteSessionSnapshot, getSessionSnapshot, setSessionSnapshot } from '../utils/sessionPageCache';
 import { useGlobalWheelScroll } from '../hooks/useGlobalWheelScroll';
 import { loginPath } from '../utils/authRedirect';
 import { excerptFromHTML, firstImageFromHTML } from '../utils/seoText';
@@ -62,6 +64,27 @@ import type { PostHeading } from '../utils/postHeadings';
 import { InFlowSiteFooter } from '../components/SiteFooter';
 import NotFoundPage from './NotFoundPage';
 
+type PostDetailSnapshot = {
+  post: PostItem;
+  comments: Comment[];
+  poll: PollView | null;
+  lottery: PostLotteryView | null;
+  liked: boolean;
+  favorited: boolean;
+  canEdit: boolean;
+  isEdited: boolean;
+  editBlockReason: string;
+  editWindowHours: number;
+  bountyCanRefund: boolean;
+  bountyRefundBlockReason: string;
+  bountyEligibleReplyCount: number;
+  scrollTop: number;
+};
+
+function postDetailCacheKey(id: number) {
+  return `post:${id}`;
+}
+
 /** 格式化剩余可编辑时间 */
 function formatEditRemaining(createdAt: string, windowHours: number): string {
   if (windowHours <= 0) return '';
@@ -80,26 +103,31 @@ export default function PostDetailPage() {
   const postId = parsePermalinkID(id);
   const nav = useNavigate();
   const location = useLocation();
+  const navType = useNavigationType();
   const { user, refresh } = useAuth();
   const { limits } = useForumLimits();
   const { setPostOutline, isMobile } = useOutletContext<LayoutCtx>();
 
-  const [post, setPost] = useState<PostItem | null>(null);
-  const [poll, setPoll] = useState<PollView | null>(null);
-  const [lottery, setLottery] = useState<PostLotteryView | null>(null);
-  const [comments, setComments] = useState<Comment[]>([]);
-  const [liked, setLiked] = useState(false);
-  const [favorited, setFavorited] = useState(false);
+  const initialSnap = (postId && !Number.isNaN(postId))
+    ? getSessionSnapshot<PostDetailSnapshot>(postDetailCacheKey(postId))
+    : undefined;
+
+  const [post, setPost] = useState<PostItem | null>(initialSnap?.post ?? null);
+  const [poll, setPoll] = useState<PollView | null>(initialSnap?.poll ?? null);
+  const [lottery, setLottery] = useState<PostLotteryView | null>(initialSnap?.lottery ?? null);
+  const [comments, setComments] = useState<Comment[]>(initialSnap?.comments ?? []);
+  const [liked, setLiked] = useState(initialSnap?.liked ?? false);
+  const [favorited, setFavorited] = useState(initialSnap?.favorited ?? false);
   const [replyTo, setReplyTo] = useState<Comment | null>(null);
   const [editingCommentId, setEditingCommentId] = useState<number | null>(null);
   const [submitting, setSubmitting] = useState(false);
-  const [loading, setLoading] = useState(true);
+  const [loading, setLoading] = useState(!initialSnap);
   const [highlightFloor, setHighlightFloor] = useState<number | null>(null);
   const [submitCount, setSubmitCount] = useState(0);
-  const [canEdit, setCanEdit] = useState(false);
-  const [isEdited, setIsEdited] = useState(false);
-  const [editBlockReason, setEditBlockReason] = useState('');
-  const [editWindowHours, setEditWindowHours] = useState(0);
+  const [canEdit, setCanEdit] = useState(initialSnap?.canEdit ?? false);
+  const [isEdited, setIsEdited] = useState(initialSnap?.isEdited ?? false);
+  const [editBlockReason, setEditBlockReason] = useState(initialSnap?.editBlockReason ?? '');
+  const [editWindowHours, setEditWindowHours] = useState(initialSnap?.editWindowHours ?? 0);
   const [showRevisions, setShowRevisions] = useState(false);
   const [deletingPost, setDeletingPost] = useState(false);
   const [deleteOpen, setDeleteOpen] = useState(false);
@@ -114,14 +142,25 @@ export default function PostDetailPage() {
   const [rejecting, setRejecting] = useState(false);
   const [bountyAwardTarget, setBountyAwardTarget] = useState<number | null>(null);
   const [bountyAwarding, setBountyAwarding] = useState(false);
-  const [bountyCanRefund, setBountyCanRefund] = useState(true);
-  const [bountyRefundBlockReason, setBountyRefundBlockReason] = useState('');
-  const [bountyEligibleReplyCount, setBountyEligibleReplyCount] = useState(0);
+  const [bountyCanRefund, setBountyCanRefund] = useState(initialSnap?.bountyCanRefund ?? true);
+  const [bountyRefundBlockReason, setBountyRefundBlockReason] = useState(initialSnap?.bountyRefundBlockReason ?? '');
+  const [bountyEligibleReplyCount, setBountyEligibleReplyCount] = useState(initialSnap?.bountyEligibleReplyCount ?? 0);
+  /** 仅浏览器后退/前进还原滚动；从列表再次点进帖子从顶部开始 */
+  const [restoreScrollTop, setRestoreScrollTop] = useState<number | null>(() => {
+    if (!initialSnap) return null;
+    if (navType === 'POP' && !location.hash) return initialSnap.scrollTop;
+    return 0;
+  });
 
   const pageRef = useRef<HTMLDivElement>(null);
   const commentSectionRef = useRef<HTMLDivElement>(null);
   const commentBoxRef = useRef<HTMLDivElement>(null);
   const highlightTimer = useRef<ReturnType<typeof setTimeout>>();
+  const postRef = useRef<PostItem | null>(null);
+  const scrollTopRef = useRef(
+    initialSnap && navType === 'POP' && !location.hash ? initialSnap.scrollTop : 0,
+  );
+  postRef.current = post;
 
   useGlobalWheelScroll(pageRef, !loading && !!post);
 
@@ -180,19 +219,64 @@ export default function PostDetailPage() {
   const loadSeq = useRef(0);
   const detailPath = postPath(postId, limits);
 
-  useEffect(() => {
+  const applySnapshot = useCallback((snap: PostDetailSnapshot, opts?: { restoreScroll?: boolean }) => {
+    setPost(snap.post);
+    setPoll(snap.poll);
+    setLottery(snap.lottery);
+    setLiked(snap.liked);
+    setFavorited(snap.favorited);
+    setCanEdit(snap.canEdit);
+    setIsEdited(snap.isEdited);
+    setEditBlockReason(snap.editBlockReason);
+    setEditWindowHours(snap.editWindowHours);
+    setBountyCanRefund(snap.bountyCanRefund);
+    setBountyRefundBlockReason(snap.bountyRefundBlockReason);
+    setBountyEligibleReplyCount(snap.bountyEligibleReplyCount);
+    setComments(snap.comments);
+    if (opts?.restoreScroll) {
+      scrollTopRef.current = snap.scrollTop;
+      setRestoreScrollTop(snap.scrollTop);
+    } else {
+      scrollTopRef.current = 0;
+      // 同组件换帖时容器可能仍停在上一帖位置；初次进入已是 0 则不动，避免覆盖 #floor-N
+      const el = pageRef.current;
+      if (el && el.scrollTop !== 0) setRestoreScrollTop(0);
+    }
+  }, []);
+
+  const loadPostRef = useRef<(mode: 'auto' | 'force') => void>(() => {});
+  loadPostRef.current = (mode: 'auto' | 'force') => {
     if (!postId || Number.isNaN(postId)) {
       setPost(null);
       setLoading(false);
       return;
     }
+    if (mode === 'force') {
+      deleteSessionSnapshot(postDetailCacheKey(postId));
+    }
+    const cached = mode === 'force'
+      ? undefined
+      : getSessionSnapshot<PostDetailSnapshot>(postDetailCacheKey(postId));
+    if (cached) {
+      loadSeq.current += 1;
+      applySnapshot(cached, { restoreScroll: navType === 'POP' && !location.hash });
+      setReplyTo(null);
+      setEditingCommentId(null);
+      setComposerOpen(false);
+      setHeadings([]);
+      setLoading(false);
+      return;
+    }
+    const seq = ++loadSeq.current;
+    const keep = !!postRef.current;
     setReplyTo(null);
     setEditingCommentId(null);
     setComposerOpen(false);
     setHeadings([]);
-    const seq = ++loadSeq.current;
-    setLoading(true);
-    setPost(null);
+    if (!keep) {
+      setLoading(true);
+      setPost(null);
+    }
 
     (async () => {
       try {
@@ -202,30 +286,118 @@ export default function PostDetailPage() {
           api.comments(postId, myIds),
         ]);
         if (seq !== loadSeq.current) return;
-        setPost(detail.post);
-        setPoll(detail.poll ?? null);
-        setLottery(detail.lottery ?? null);
-        setLiked(detail.liked);
-        setFavorited(detail.favorited);
-        setCanEdit(detail.can_edit ?? false);
-        setIsEdited(detail.is_edited ?? isTimeDiffSignificant(detail.post.created_at, detail.post.updated_at ?? detail.post.created_at));
-        setEditBlockReason(detail.edit_block_reason ?? '');
-        setEditWindowHours(detail.post_edit_window_hours ?? 0);
-        setBountyCanRefund(detail.bounty_can_refund ?? true);
-        setBountyRefundBlockReason(detail.bounty_refund_block_reason ?? '');
-        setBountyEligibleReplyCount(detail.bounty_eligible_reply_count ?? 0);
-        setComments(Array.isArray(comm.comments) ? comm.comments : []);
+        const commentsList = Array.isArray(comm.comments) ? comm.comments : [];
+        const snap: PostDetailSnapshot = {
+          post: detail.post,
+          comments: commentsList,
+          poll: detail.poll ?? null,
+          lottery: detail.lottery ?? null,
+          liked: detail.liked,
+          favorited: detail.favorited,
+          canEdit: detail.can_edit ?? false,
+          isEdited: detail.is_edited ?? isTimeDiffSignificant(detail.post.created_at, detail.post.updated_at ?? detail.post.created_at),
+          editBlockReason: detail.edit_block_reason ?? '',
+          editWindowHours: detail.post_edit_window_hours ?? 0,
+          bountyCanRefund: detail.bounty_can_refund ?? true,
+          bountyRefundBlockReason: detail.bounty_refund_block_reason ?? '',
+          bountyEligibleReplyCount: detail.bounty_eligible_reply_count ?? 0,
+          scrollTop: 0,
+        };
+        setSessionSnapshot(postDetailCacheKey(postId), snap);
+        applySnapshot(snap, { restoreScroll: false });
+        if (mode === 'force') {
+          const el = pageRef.current;
+          if (el) el.scrollTop = 0;
+          scrollTopRef.current = 0;
+        }
         void refresh();
       } catch {
         if (seq !== loadSeq.current) return;
-        setPost(null);
+        if (!keep) setPost(null);
       } finally {
         if (seq === loadSeq.current) setLoading(false);
       }
     })();
+  };
+
+  useEffect(() => {
+    loadPostRef.current('auto');
     // eslint-disable-next-line react-hooks/exhaustive-deps -- 仅 postId 变化时加载
   }, [postId]);
 
+  useEffect(() => {
+    // 下拉已预热则应用快照；否则强制重拉
+    const onForce = () => {
+      if (!postId || Number.isNaN(postId)) return;
+      const warm = getSessionSnapshot<PostDetailSnapshot>(postDetailCacheKey(postId));
+      if (warm) {
+        loadSeq.current += 1;
+        applySnapshot(warm, { restoreScroll: false });
+        setLoading(false);
+        const el = pageRef.current;
+        if (el) el.scrollTop = 0;
+        scrollTopRef.current = 0;
+        return;
+      }
+      loadPostRef.current('force');
+    };
+    window.addEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+    window.addEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onForce);
+    return () => {
+      window.removeEventListener(PAGE_FORCE_REFRESH_EVENT, onForce);
+      window.removeEventListener(PAGE_SOFT_REFRESH_COMMIT_EVENT, onForce);
+    };
+  }, [postId, applySnapshot]);
+
+  useEffect(() => {
+    const el = pageRef.current;
+    if (!el || loading || !post) return;
+    const onScroll = () => {
+      scrollTopRef.current = el.scrollTop;
+    };
+    el.addEventListener('scroll', onScroll, { passive: true });
+    return () => el.removeEventListener('scroll', onScroll);
+  }, [loading, post]);
+
+  useLayoutEffect(() => {
+    if (restoreScrollTop == null || !pageRef.current || loading || !post) return;
+    pageRef.current.scrollTop = restoreScrollTop;
+    scrollTopRef.current = restoreScrollTop;
+    setRestoreScrollTop(null);
+  }, [restoreScrollTop, loading, post]);
+
+  useEffect(() => {
+    if (!post || post.id !== postId || loading) return;
+    setSessionSnapshot(postDetailCacheKey(post.id), {
+      post,
+      comments,
+      poll,
+      lottery,
+      liked,
+      favorited,
+      canEdit,
+      isEdited,
+      editBlockReason,
+      editWindowHours,
+      bountyCanRefund,
+      bountyRefundBlockReason,
+      bountyEligibleReplyCount,
+      scrollTop: scrollTopRef.current,
+    });
+  }, [
+    post, comments, poll, lottery, liked, favorited, canEdit, isEdited,
+    editBlockReason, editWindowHours, bountyCanRefund, bountyRefundBlockReason,
+    bountyEligibleReplyCount, postId, loading,
+  ]);
+
+  useEffect(() => () => {
+    const p = postRef.current;
+    if (!p) return;
+    const prev = getSessionSnapshot<PostDetailSnapshot>(postDetailCacheKey(p.id));
+    if (!prev) return;
+    setSessionSnapshot(postDetailCacheKey(p.id), { ...prev, scrollTop: scrollTopRef.current });
+  }, []);
+
   const reloadComments = useCallback(async () => {
     const myIds = user ? [] : loadMyCommentIds();
     const comm = await api.comments(postId, myIds);
@@ -573,6 +745,7 @@ export default function PostDetailPage() {
     setDeletingPost(true);
     try {
       await api.deletePost(postId);
+      deleteSessionSnapshot(postDetailCacheKey(postId));
       clearAllFeedCache();
       window.dispatchEvent(new Event('posts-refresh'));
       notify.success('帖子已删除');
@@ -592,7 +765,7 @@ export default function PostDetailPage() {
     onCancelReply: () => setReplyTo(null),
   };
 
-  if (loading) return <div className="post-detail-loading flex justify-center py-16"><Spinner size="lg" /></div>;
+  if (loading && !post) return <div className="post-detail-loading flex justify-center py-16"><Spinner size="lg" /></div>;
   if (!post) {
     return (
       <NotFoundPage

frontend/src/pages/ProfilePage.tsx

@@ -43,6 +43,7 @@ import { openForumPost } from '../utils/openPost';
 import { formatDateTime } from '../utils/content';
 import { InFlowSiteFooter } from '../components/SiteFooter';
 import { userPath } from '../utils/userPath';
+import { useSessionResource } from '../hooks/useSessionResource';
 
 const nickSchema = z.object({
   nickname: z.string().min(1, '请输入昵称').max(64),
@@ -75,7 +76,7 @@ export default function ProfilePage() {
   const nav = useNavigate();
   const [params, setParams] = useSearchParams();
   const tab = parseTab(params.get('tab'));
-  const { user, loading: authLoading, refresh } = useAuth();
+  const { user, loading: authLoading, refresh, logout } = useAuth();
   useNoIndexSEO('个人中心');
   const [nickLoading, setNickLoading] = useState(false);
   const [sigLoading, setSigLoading] = useState(false);
@@ -88,12 +89,6 @@ export default function ProfilePage() {
   const [cropFileName, setCropFileName] = useState('');
   const [dragOver, setDragOver] = useState(false);
   const [idCopied, setIdCopied] = useState(false);
-  const [stats, setStats] = useState<UserActivityStats | null>(null);
-  const [statsLoading, setStatsLoading] = useState(true);
-  const [posts, setPosts] = useState<PostItem[]>([]);
-  const [postsLoading, setPostsLoading] = useState(false);
-  const [postPage, setPostPage] = useState(1);
-  const [postTotal, setPostTotal] = useState(0);
   const fileRef = useRef<HTMLInputElement>(null);
   const dragCounter = useRef(0);
   const copyTimer = useRef<ReturnType<typeof setTimeout>>();
@@ -102,7 +97,6 @@ export default function ProfilePage() {
 
   const { limits } = useForumLimits();
   const pageSize = limits.page_size_default > 0 ? limits.page_size_default : 20;
-  const totalPages = Math.max(1, Math.ceil(postTotal / pageSize));
 
   const nickForm = useForm<NickValues>({
     resolver: zodResolver(nickSchema),
@@ -181,37 +175,26 @@ export default function ProfilePage() {
     if (copyTimer.current) clearTimeout(copyTimer.current);
   }, []);
 
-  const loadStats = useCallback(() => {
-    setStatsLoading(true);
-    api.profileStats()
-      .then(d => setStats(d.stats))
-      .catch(() => setStats(null))
-      .finally(() => setStatsLoading(false));
-  }, []);
+  const { data: stats = null, loading: statsLoading } = useSessionResource<UserActivityStats | null>(
+    user ? `profile:stats:${user.id}` : null,
+    () => api.profileStats().then(d => d.stats ?? null),
+    { enabled: !!user },
+  );
 
-  useEffect(() => {
-    if (!user) return;
-    loadStats();
-  }, [user, loadStats]);
-
-  useEffect(() => {
-    if (!user || tab !== 'posts') return;
-    let cancelled = false;
-    setPostsLoading(true);
-    api.posts({ user_id: user.id, page: postPage, size: pageSize, sort: 'latest' })
-      .then(d => {
-        if (cancelled) return;
-        setPosts(Array.isArray(d.posts) ? d.posts : []);
-        setPostTotal(d.total ?? 0);
-      })
-      .catch(e => {
-        if (!cancelled) notify.error(e instanceof Error ? e.message : '加载帖子失败');
-      })
-      .finally(() => {
-        if (!cancelled) setPostsLoading(false);
-      });
-    return () => { cancelled = true; };
-  }, [user, tab, postPage, pageSize]);
+  const [postPage, setPostPage] = useState(1);
+  const postsKey = user && tab === 'posts' ? `profile:posts:${user.id}:${postPage}:${pageSize}` : null;
+  const { data: postsSnap, loading: postsLoading } = useSessionResource<{ posts: PostItem[]; total: number }>(
+    postsKey,
+    () => api.posts({ user_id: user!.id, page: postPage, size: pageSize, sort: 'latest' })
+      .then(d => ({ posts: Array.isArray(d.posts) ? d.posts : [], total: d.total ?? 0 })),
+    {
+      enabled: !!postsKey,
+      onError: (e) => notify.error(e instanceof Error ? e.message : '加载帖子失败'),
+    },
+  );
+  const posts = postsSnap?.posts ?? [];
+  const postTotal = postsSnap?.total ?? 0;
+  const totalPages = Math.max(1, Math.ceil(postTotal / pageSize));
 
   const closeCropDialog = useCallback((open: boolean) => {
     if (!open) {
@@ -263,7 +246,7 @@ export default function ProfilePage() {
       await api.updatePassword(values.old_password, values.new_password);
       notify.success('密码已修改，请重新登录');
       pwdForm.reset();
-      await api.logout();
+      await logout();
       nav('/login');
     } catch (e: unknown) {
       notify.error(e instanceof Error ? e.message : '修改失败');

frontend/src/pages/ProjectsPage.tsx

@@ -10,14 +10,13 @@ import ProjectListItem from '../components/ProjectListItem';
 import { InFlowSiteFooter } from '../components/SiteFooter';
 import { joinSEOKeywords, usePageSEO } from '../hooks/usePageSEO';
 import { getCachedSiteBranding } from '../hooks/useSiteBranding';
+import { useSessionResource } from '../hooks/useSessionResource';
+
+type ProjectsSnap = { list: GiteaProject[]; total: number; totalPages: number };
 
 export default function ProjectsPage() {
   const nav = useNavigate();
-  const [list, setList] = useState<GiteaProject[]>([]);
-  const [total, setTotal] = useState(0);
   const [page, setPage] = useState(1);
-  const [totalPages, setTotalPages] = useState(0);
-  const [loading, setLoading] = useState(true);
   const [queryInput, setQueryInput] = useState('');
   const [query, setQuery] = useState('');
 
@@ -40,24 +39,20 @@ export default function ProjectsPage() {
     return () => window.clearTimeout(t);
   }, [queryInput]);
 
-  useEffect(() => {
-    let cancelled = false;
-    setLoading(true);
-    api.projects({ page, limit: 30, q: query || undefined })
-      .then(d => {
-        if (cancelled) return;
-        setList(Array.isArray(d.projects) ? d.projects : []);
-        setTotal(d.total ?? 0);
-        setTotalPages(d.total_pages ?? 0);
-      })
-      .catch(e => {
-        if (!cancelled) notify.error(e instanceof Error ? e.message : '加载失败');
-      })
-      .finally(() => {
-        if (!cancelled) setLoading(false);
-      });
-    return () => { cancelled = true; };
-  }, [page, query]);
+  const { data, loading } = useSessionResource<ProjectsSnap>(
+    `projects:${page}:${query}`,
+    () => api.projects({ page, limit: 30, q: query || undefined }).then(d => ({
+      list: Array.isArray(d.projects) ? d.projects : [],
+      total: d.total ?? 0,
+      totalPages: d.total_pages ?? 0,
+    })),
+    {
+      onError: (e) => notify.error(e instanceof Error ? e.message : '加载失败'),
+    },
+  );
+  const list = data?.list ?? [];
+  const total = data?.total ?? 0;
+  const totalPages = data?.totalPages ?? 0;
 
   return (
     <div className="page-wrap">

frontend/src/pages/ShowcasePage.tsx

@@ -1,4 +1,3 @@
-import { useEffect, useState } from 'react';
 import { ExternalLink, Globe2 } from 'lucide-react';
 import { Spinner } from '@/components/ui/spinner';
 import { api } from '../api/client';
@@ -6,12 +5,15 @@ import type { CommunityShowcaseItem } from '../api/types';
 import { joinSEOKeywords, usePageSEO } from '../hooks/usePageSEO';
 import { getCachedSiteBranding, useSiteBranding } from '../hooks/useSiteBranding';
 import { InFlowSiteFooter } from '../components/SiteFooter';
+import { useSessionResource } from '../hooks/useSessionResource';
 
 /** 官方精选的公网部署展柜（只读；仅人工精选条目） */
 export default function ShowcasePage() {
   const { branding } = useSiteBranding();
-  const [items, setItems] = useState<CommunityShowcaseItem[]>([]);
-  const [loading, setLoading] = useState(true);
+  const { data: items = [], loading } = useSessionResource<CommunityShowcaseItem[]>(
+    'showcase',
+    () => api.communityShowcase().then((r) => (Array.isArray(r.items) ? r.items : [])),
+  );
 
   usePageSEO({
     title: '开源部署展柜',
@@ -20,23 +22,9 @@ export default function ShowcasePage() {
     canonicalPath: '/showcase',
   });
 
-  useEffect(() => {
-    let cancelled = false;
-    api.communityShowcase()
-      .then((r) => {
-        if (!cancelled) setItems(Array.isArray(r.items) ? r.items : []);
-      })
-      .catch(() => {
-        if (!cancelled) setItems([]);
-      })
-      .finally(() => {
-        if (!cancelled) setLoading(false);
-      });
-    return () => { cancelled = true; };
-  }, []);
-
   return (
-    <div className="showcase-page">
+    <div className="page-wrap">
+      <div className="showcase-page">
       <header className="showcase-head">
         <div className="showcase-head-mark" aria-hidden>
           <Globe2 size={22} />
@@ -82,6 +70,7 @@ export default function ShowcasePage() {
       )}
 
       <InFlowSiteFooter />
+      </div>
     </div>
   );
 }

frontend/src/pages/SitePageView.tsx

@@ -1,14 +1,13 @@
-import { useEffect, useState } from 'react';
 import { useParams } from 'react-router-dom';
 import NotFoundPage from './NotFoundPage';
 import { api } from '../api/client';
 import type { SitePage } from '../api/types';
 import PostContent from '../components/PostContent';
-import PageLoader from '../components/PageLoader';
 import { usePageSEO } from '../hooks/usePageSEO';
 import { parsePermalinkSlug, pagePath } from '../utils/permalink';
 import { useForumLimits } from '../hooks/useForumLimits';
 import { useAuth } from '../hooks/useAuth';
+import { useSessionResource } from '../hooks/useSessionResource';
 
 /** 自定义单页（关于我们、版规等） */
 export default function SitePageView() {
@@ -16,22 +15,12 @@ export default function SitePageView() {
   const slug = parsePermalinkSlug(rawSlug);
   const { limits } = useForumLimits();
   const { user } = useAuth();
-  const [page, setPage] = useState<SitePage | null>(null);
-  const [loading, setLoading] = useState(true);
-  const [notFound, setNotFound] = useState(false);
-
-  useEffect(() => {
-    if (!slug) {
-      setNotFound(true);
-      setLoading(false);
-      return;
-    }
-    setLoading(true);
-    api.page(slug)
-      .then(d => setPage(d.page))
-      .catch(() => setNotFound(true))
-      .finally(() => setLoading(false));
-  }, [slug]);
+  const { data: page, loading } = useSessionResource<SitePage | null>(
+    slug ? `sitepage:${slug}` : null,
+    () => api.page(slug).then(d => d.page),
+    { enabled: !!slug },
+  );
+  const notFound = !slug || (!loading && !page);
 
   usePageSEO({
     title: page?.title,
@@ -41,7 +30,7 @@ export default function SitePageView() {
   });
 
   if (!slug) return <NotFoundPage title="页面不存在" />;
-  if (loading) return <PageLoader />;
+  if (loading) return null;
   if (notFound || !page) return <NotFoundPage title="页面不存在" description="该页面不存在或未发布" />;
 
   return (

frontend/src/pages/UserProfilePage.tsx

@@ -20,6 +20,7 @@ import { api } from '../api/client';
 import type { PostItem, UserActivityStats, UserPublic } from '../api/types';
 import { useAuth } from '../hooks/useAuth';
 import { useForumLimits } from '../hooks/useForumLimits';
+import { useSessionResource } from '../hooks/useSessionResource';
 import PostListItem from '../components/PostListItem';
 import FeedPagination from '../components/FeedPagination';
 import ComposeMessageDialog from '../components/ComposeMessageDialog';
@@ -31,6 +32,9 @@ import { canonicalRedirectPath, parsePermalinkID, userPath } from '../utils/perm
 import NotFoundPage from './NotFoundPage';
 import { InFlowSiteFooter } from '../components/SiteFooter';
 
+type ProfileSnap = { profile: UserPublic; stats: UserActivityStats | null };
+type PostsSnap = { posts: PostItem[]; total: number };
+
 export default function UserProfilePage() {
   const { id: idParam } = useParams();
   const userId = parsePermalinkID(idParam);
@@ -40,15 +44,34 @@ export default function UserProfilePage() {
   const { limits } = useForumLimits();
   const pageSize = limits.page_size_default > 0 ? limits.page_size_default : 20;
 
-  const [profile, setProfile] = useState<UserPublic | null>(null);
-  const [stats, setStats] = useState<UserActivityStats | null>(null);
   const [msgOpen, setMsgOpen] = useState(false);
-  const [loading, setLoading] = useState(true);
   const [notFound, setNotFound] = useState(false);
-  const [posts, setPosts] = useState<PostItem[]>([]);
-  const [postsLoading, setPostsLoading] = useState(false);
   const [postPage, setPostPage] = useState(1);
-  const [postTotal, setPostTotal] = useState(0);
+
+  const profileKey = userId && !Number.isNaN(userId) ? `user:${userId}` : null;
+  const { data: profileSnap, loading } = useSessionResource<ProfileSnap>(
+    profileKey,
+    () => api.userProfile(userId).then(d => ({ profile: d.user, stats: d.stats ?? null })),
+    {
+      enabled: !!profileKey,
+      onError: () => setNotFound(true),
+    },
+  );
+  const profile = profileSnap?.profile ?? null;
+  const stats = profileSnap?.stats ?? null;
+
+  const postsKey = profileKey && profile ? `${profileKey}:posts:${postPage}:${pageSize}` : null;
+  const { data: postsSnap, loading: postsLoading } = useSessionResource<PostsSnap>(
+    postsKey,
+    () => api.posts({ user_id: userId, page: postPage, size: pageSize, sort: 'latest' })
+      .then(d => ({ posts: Array.isArray(d.posts) ? d.posts : [], total: d.total ?? 0 })),
+    {
+      enabled: !!postsKey,
+      onError: (e) => notify.error(e instanceof Error ? e.message : '加载帖子失败'),
+    },
+  );
+  const posts = postsSnap?.posts ?? [];
+  const postTotal = postsSnap?.total ?? 0;
 
   const isSelf = !!me && me.id === userId;
   const totalPages = Math.max(1, Math.ceil(postTotal / pageSize));
@@ -56,43 +79,13 @@ export default function UserProfilePage() {
   useEffect(() => {
     if (!userId || Number.isNaN(userId)) {
       setNotFound(true);
-      setLoading(false);
-      return;
     }
-    setLoading(true);
-    setNotFound(false);
-    setPostPage(1);
-    api.userProfile(userId)
-      .then(d => {
-        setProfile(d.user);
-        setStats(d.stats);
-      })
-      .catch(() => {
-        setProfile(null);
-        setStats(null);
-        setNotFound(true);
-      })
-      .finally(() => setLoading(false));
   }, [userId]);
 
   useEffect(() => {
-    if (!userId || Number.isNaN(userId) || !profile) return;
-    let cancelled = false;
-    setPostsLoading(true);
-    api.posts({ user_id: userId, page: postPage, size: pageSize, sort: 'latest' })
-      .then(d => {
-        if (cancelled) return;
-        setPosts(Array.isArray(d.posts) ? d.posts : []);
-        setPostTotal(d.total ?? 0);
-      })
-      .catch(e => {
-        if (!cancelled) notify.error(e instanceof Error ? e.message : '加载帖子失败');
-      })
-      .finally(() => {
-        if (!cancelled) setPostsLoading(false);
-      });
-    return () => { cancelled = true; };
-  }, [userId, profile, postPage, pageSize]);
+    setNotFound(false);
+    setPostPage(1);
+  }, [userId]);
 
   useEffect(() => {
     if (!userId || Number.isNaN(userId)) return;

frontend/src/pages/admin/AdminLinksPage.tsx

@@ -22,6 +22,7 @@ import { cn } from '@/lib/utils';
 import { api } from '../../api/client';
 import { useAdminGuard } from '../../layouts/AdminLayout';
 import type { ForumLimits, FriendLink, FriendLinkApply, SiteBranding } from '../../api/types';
+import { DEFAULT_FEED_SORT_TABS } from '../../api/types';
 import { useSiteBranding, seedSiteBrandingCache, invalidateSiteBrandingCache } from '../../hooks/useSiteBranding';
 import { invalidateForumLimitsCache } from '../../hooks/useForumLimits';
 import { formatTime } from '../../utils/content';
@@ -185,6 +186,7 @@ export default function AdminLinksPage() {
           nav_show_showcase: false,
           footer_show_showcase: false,
           feed_list_style: 'title',
+          feed_sort_tabs: DEFAULT_FEED_SORT_TABS,
           permalink_enabled: false,
           permalink_ext: 'html',
           ...s.limits,
@@ -366,6 +368,7 @@ export default function AdminLinksPage() {
           nav_show_showcase: false,
           footer_show_showcase: false,
           feed_list_style: 'title',
+          feed_sort_tabs: DEFAULT_FEED_SORT_TABS,
           permalink_enabled: false,
           permalink_ext: 'html',
           post_edit_window_hours: 24,

frontend/src/pages/admin/AdminSettingsPage.tsx

@@ -11,9 +11,11 @@ import { invalidateForumLimitsCache } from '../../hooks/useForumLimits';
 import { DEFAULT_BRANDING, seedSiteBrandingCache } from '../../hooks/useSiteBranding';
 import { clearAllFeedCache } from '../../utils/feedCache';
 import { normalizeAsideWidgets, resolveAsideWidgets, mergeForumLimitsWithAsideWidgets, resolveSavedAsideWidgets } from '../../utils/asideWidgets';
+import { normalizeFeedSortTabs } from '../../utils/feedSortTabs';
 import AsideWidgetList from '../../components/admin/AsideWidgetList';
+import FeedSortTabList from '../../components/admin/FeedSortTabList';
 import type { AdminSettings, ForumLimits, MailConfig, OIDCConfig, OAuthClient, GiteaSyncConfig, StorageConfig, SiteBranding, AsideWidget } from '../../api/types';
-import { DEFAULT_ASIDE_WIDGETS } from '../../api/types';
+import { DEFAULT_ASIDE_WIDGETS, DEFAULT_FEED_SORT_TABS } from '../../api/types';
 
 type TabId = 'branding' | 'limits' | 'mail' | 'oidc' | 'gitea' | 'storage' | 'filter' | 'system';
 
@@ -305,6 +307,7 @@ export default function AdminSettingsPage() {
           nav_show_showcase: false,
           footer_show_showcase: false,
           feed_list_style: 'title',
+          feed_sort_tabs: normalizeFeedSortTabs(s.limits?.feed_sort_tabs ?? DEFAULT_FEED_SORT_TABS),
           permalink_enabled: false,
           permalink_ext: 'html',
           ...s.limits,
@@ -916,7 +919,7 @@ export default function AdminSettingsPage() {
               <section className="admin-settings-section" id="settings-feed-list">
                 <div className="admin-settings-section-head">
                   <h3>列表呈现</h3>
-                  <p>首页及帖子列表的信息密度与缩略图展示</p>
+                  <p>首页及帖子列表的信息密度、缩略图与排序标签</p>
                 </div>
                 <div className="admin-settings-table" role="group" aria-label="列表呈现">
                   <div className="admin-settings-row">
@@ -946,6 +949,16 @@ export default function AdminSettingsPage() {
                     </span>
                   </div>
                 </div>
+                <div className="admin-settings-subsection">
+                  <h4 className="admin-settings-subsection-title">首页排序标签</h4>
+                  <p className="admin-settings-subsection-desc">
+                    拖拽调整顺序；在「显示名称」框中改首页文案；右侧开关控制启停。第一个启用项为默认排序
+                  </p>
+                  <FeedSortTabList
+                    tabs={normalizeFeedSortTabs(limits.feed_sort_tabs ?? DEFAULT_FEED_SORT_TABS)}
+                    onChange={tabs => setLimits(prev => prev ? { ...prev, feed_sort_tabs: tabs } : prev)}
+                  />
+                </div>
               </section>
 
               <section className="admin-settings-section" id="settings-permalink">

frontend/src/styles/global.css

@@ -227,6 +227,30 @@ a:hover { text-decoration: underline; }
   border-bottom: 1px solid var(--j13-border);
 }
 
+/* 站内跳转顶栏细进度条（2px，类 Next.js / YouTube） */
+.top-progress {
+  position: fixed;
+  top: 0;
+  left: 0;
+  height: 2px;
+  z-index: 9999;
+  pointer-events: none;
+  background: var(--j13-green);
+  box-shadow: 0 0 8px rgba(24, 160, 88, 0.55), 0 0 2px rgba(24, 160, 88, 0.9);
+  transition: width 0.2s ease-out;
+  border-radius: 0 1px 1px 0;
+}
+
+.top-progress--done {
+  opacity: 0;
+  transition: width 0.12s ease-out, opacity 0.2s ease-out 0.05s;
+}
+
+html.dark .top-progress {
+  background: #36d399;
+  box-shadow: 0 0 8px rgba(54, 211, 153, 0.5), 0 0 2px rgba(54, 211, 153, 0.85);
+}
+
 /* 站点页脚 */
 .site-footer {
   flex-shrink: 0;
@@ -2751,6 +2775,14 @@ body:has(.admin-topbar) .ptr-indicator {
   flex-shrink: 0;
 }
 
+.feed-sort-tab.is-pending {
+  color: var(--j13-green);
+}
+
+.feed-sort-tab__spin {
+  animation: ptr-spin 0.7s linear infinite;
+}
+
 @media (max-width: 768px) {
   .feed-head {
     flex-wrap: wrap;
@@ -3501,6 +3533,21 @@ body:has(.admin-topbar) .ptr-indicator {
   flex-shrink: 0;
 }
 
+/* 类型徽章缀在标题后：不参与收缩，标题在剩余宽度内 ellipsis */
+.post-title-type-badges {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+  flex-shrink: 0;
+  max-width: none;
+}
+
+.post-title-type-badges .post-type-badge,
+.post-title-type-badges .post-qa-badge,
+.post-title-type-badges .post-bounty-badge {
+  margin-right: 0;
+}
+
 .post-title {
   display: block;
   overflow: hidden;
@@ -3513,8 +3560,9 @@ body:has(.admin-topbar) .ptr-indicator {
   color: var(--color-text-1);
   text-decoration: none;
   transition: color 0.15s;
+  /* 不抢满行宽：短标题时类型徽章紧挨末字；过长时在剩余空间内省略 */
   min-width: 0;
-  flex: 1;
+  flex: 0 1 auto;
 }
 
 a.post-title:visited {
@@ -11110,7 +11158,7 @@ button.profile-stat:hover strong {
   }
 }
 
-/* 路由懒加载占位已改为 FeedPageSkeleton，保留类名兼容 */
+/* 路由懒加载占位类名保留兼容（前台已改顶栏进度 + 空白） */
 
 /* ========== React 管理后台 ========== */
 .admin-shell { min-height: 100vh; background: hsl(var(--background)); }
@@ -11572,6 +11620,21 @@ button.profile-stat:hover strong {
   font-size: 12px;
   color: hsl(var(--muted-foreground));
 }
+.admin-settings-subsection {
+  margin-top: 1.25rem;
+}
+.admin-settings-subsection-title {
+  margin: 0 0 0.25rem;
+  font-size: 14px;
+  font-weight: 600;
+  color: var(--foreground, #0f172a);
+}
+.admin-settings-subsection-desc {
+  margin: 0 0 0.75rem;
+  font-size: 12px;
+  line-height: 1.45;
+  color: hsl(var(--muted-foreground));
+}
 
 /* 设置表内紧凑开关（勿复用 .admin-mail-switch，其绝对定位会破坏后台布局） */
 .admin-settings-switch {
@@ -14521,6 +14584,51 @@ button.post-poll__option,
   font-weight: 600;
   color: var(--foreground, #0f172a);
 }
+.admin-sortable-row__field {
+  display: flex;
+  flex-direction: column;
+  align-items: stretch;
+  gap: 0.28rem;
+  min-width: 0;
+}
+.admin-sortable-row__field-name {
+  font-size: 11px;
+  font-weight: 500;
+  line-height: 1.2;
+  color: hsl(var(--muted-foreground));
+}
+.admin-sortable-row__name-wrap {
+  position: relative;
+  display: block;
+  width: 100%;
+  max-width: 16rem;
+}
+.admin-sortable-row__name-wrap .admin-sortable-row__name-input {
+  width: 100%;
+  height: 36px;
+  padding-right: 2rem;
+  font-weight: 500;
+  color: hsl(var(--foreground));
+  background: hsl(var(--muted) / 0.55);
+  border: 1px solid hsl(var(--foreground) / 0.16);
+  box-shadow: inset 0 1px 1px hsl(var(--foreground) / 0.04);
+}
+.admin-sortable-row__name-wrap .admin-sortable-row__name-input:hover {
+  border-color: hsl(var(--foreground) / 0.28);
+}
+.admin-sortable-row__name-wrap .admin-sortable-row__name-input:focus-visible {
+  background: hsl(var(--background));
+  border-color: var(--j13-green);
+  box-shadow: 0 0 0 3px color-mix(in srgb, var(--j13-green) 22%, transparent);
+}
+.admin-sortable-row__name-icon {
+  position: absolute;
+  right: 0.55rem;
+  top: 50%;
+  transform: translateY(-50%);
+  color: hsl(var(--muted-foreground));
+  pointer-events: none;
+}
 .admin-sortable-row__hint {
   font-size: 12px;
   line-height: 1.45;

frontend/src/utils/feedCache.ts

@@ -6,6 +6,9 @@ import {
   getHomeStoreState,
   type FeedCacheEntry,
 } from '../store/homeStore';
+import { clearSessionSnapshots } from './sessionPageCache';
+import { softRefreshCurrentPage } from './softRefresh';
+import { transitionTo } from './spaTransition';
 
 /** 导航到帖子列表时附带的状态，用于同 URL 重复点击时强制刷新 */
 export type FeedNavState = { refreshFeed?: boolean };
@@ -55,9 +58,10 @@ export function setFeedCache(
   getHomeStoreState().setFeed(key, data);
 }
 
-/** 清除所有帖子列表缓存 */
+/** 清除所有帖子列表缓存（手动刷新 / 帖子变更时连详情快照一起作废） */
 export function clearAllFeedCache() {
   getHomeStoreState().clearAll();
+  clearSessionSnapshots('post:');
 }
 
 /** 主动刷新帖子列表时派发，用于同页内立即回到顶部 */
@@ -66,6 +70,9 @@ export const FEED_RESET_EVENT = 'feed-reset';
 /** 手机下拉刷新（Feed 页）：强制重拉列表并重置滚动，不整页 reload */
 export const FEED_PULL_REFRESH_EVENT = 'feed-pull-refresh';
 
+/** 手机下拉：强制刷新当前前台页（绕过会话快照，非整页 reload） */
+export const PAGE_FORCE_REFRESH_EVENT = 'page-force-refresh';
+
 /** 当前浏览器地址是否已是目标 Feed URL（忽略 hash） */
 function isSameFeedUrl(url: string): boolean {
   try {
@@ -80,15 +87,23 @@ function isSameFeedUrl(url: string): boolean {
 }
 
 /**
- * 清除缓存并导航到帖子列表。
- * 已在目标 URL（如首页再点 Logo）时额外派发强制重拉，不依赖 RR 是否换 key。
+ * 导航到帖子列表。
+ * 默认：等待预热后再换页；同 URL 或 `refresh: true` 时静默软刷新（无进度条）。
  */
-export function navigateFeed(nav: NavigateFunction, url: string) {
-  clearAllFeedCache();
-  window.dispatchEvent(new Event(FEED_RESET_EVENT));
-  // 同 URL 再点（典型：左上角 Logo）：必须立刻重拉，否则可能只清缓存、界面仍显示旧列表
-  if (isSameFeedUrl(url)) {
-    window.dispatchEvent(new Event(FEED_PULL_REFRESH_EVENT));
+export function navigateFeed(nav: NavigateFunction, url: string, opts?: { refresh?: boolean }) {
+  const same = isSameFeedUrl(url);
+  const refresh = opts?.refresh ?? same;
+  if (refresh) {
+    if (same) {
+      void softRefreshCurrentPage(url);
+      return;
+    }
+    void transitionTo(nav, url, {
+      force: true,
+      silent: true,
+      state: { refreshFeed: true } satisfies FeedNavState,
+    });
+    return;
   }
-  nav(url, { state: { refreshFeed: true } satisfies FeedNavState });
+  void transitionTo(nav, url);
 }

frontend/src/utils/feedSortTabs.ts

@@ -0,0 +1,41 @@
+import type { FeedSortId, FeedSortTab } from '../api/types';
+import { DEFAULT_FEED_SORT_TABS } from '../api/types';
+
+const FEED_SORT_IDS: FeedSortId[] = ['reply', 'latest', 'hot'];
+
+const DEFAULT_LABELS: Record<FeedSortId, string> = {
+  reply: '新评论',
+  latest: '新帖子',
+  hot: '推荐帖',
+};
+
+/** 校验并补全 Feed 排序标签；至少保留一项启用 */
+export function normalizeFeedSortTabs(tabs?: FeedSortTab[] | null): FeedSortTab[] {
+  const seen = new Set<FeedSortId>();
+  const out: FeedSortTab[] = [];
+  for (const t of tabs ?? []) {
+    if (!FEED_SORT_IDS.includes(t.id) || seen.has(t.id)) continue;
+    seen.add(t.id);
+    const label = (t.label || '').trim() || DEFAULT_LABELS[t.id];
+    out.push({ id: t.id, label, enabled: !!t.enabled });
+  }
+  for (const id of FEED_SORT_IDS) {
+    if (seen.has(id)) continue;
+    const fallback = DEFAULT_FEED_SORT_TABS.find(t => t.id === id)!;
+    out.push({ ...fallback });
+  }
+  if (!out.some(t => t.enabled) && out.length > 0) {
+    out[0] = { ...out[0], enabled: true };
+  }
+  return out;
+}
+
+/** 启用中的排序标签（按配置顺序） */
+export function enabledFeedSortTabs(tabs?: FeedSortTab[] | null): FeedSortTab[] {
+  return normalizeFeedSortTabs(tabs).filter(t => t.enabled);
+}
+
+/** 默认排序 = 第一个启用项 */
+export function getDefaultFeedSort(tabs?: FeedSortTab[] | null): FeedSortId {
+  return enabledFeedSortTabs(tabs)[0]?.id ?? 'reply';
+}

frontend/src/utils/openPost.ts

@@ -1,5 +1,6 @@
 import type { NavigateFunction } from 'react-router-dom';
 import { postPath, type PermalinkOpts } from './permalink';
+import { transitionTo } from './spaTransition';
 
 export type OpenForumPostOpts = PermalinkOpts & {
   /** 跳转到指定楼层（#floor-N） */
@@ -18,5 +19,5 @@ export function openForumPost(
     window.open(path, '_blank', 'noopener,noreferrer');
     return;
   }
-  nav(path);
+  void transitionTo(nav, path);
 }

frontend/src/utils/prefetchRoute.ts

@@ -0,0 +1,421 @@
+import type { To } from 'react-router-dom';
+import { api } from '../api/client';
+import type {
+  CheckInStatus,
+  Comment,
+  CommunityShowcaseItem,
+  FriendLinkApply,
+  PollView,
+  PostItem,
+  PostLotteryView,
+  SitePage,
+} from '../api/types';
+import { parseFeedSort } from '../components/FeedSortBar';
+import { checkInCacheKey } from '../hooks/useCheckIn';
+import { ensureForumLimitsLoaded, getCachedForumLimits } from '../hooks/useForumLimits';
+import { ensureSitePagesLoaded } from '../hooks/useSitePages';
+import { feedCacheKey, getHomeStoreState } from '../store/homeStore';
+import { resolveAsideWidgets } from './asideWidgets';
+import { isTimeDiffSignificant } from './content';
+import { loadMyCommentIds } from './guest';
+import {
+  setCachedBoards,
+  setCachedStats,
+  setCachedRecentComments,
+  setCachedRecentUsers,
+  setCachedTags,
+} from './layoutCache';
+import { parsePermalinkID, parsePermalinkSlug } from './permalink';
+import { getSessionSnapshot, setSessionSnapshot } from './sessionPageCache';
+
+/** 与 PostDetailPage 会话快照同形，供预取写入 */
+type PostDetailSnapshot = {
+  post: PostItem;
+  comments: Comment[];
+  poll: PollView | null;
+  lottery: PostLotteryView | null;
+  liked: boolean;
+  favorited: boolean;
+  canEdit: boolean;
+  isEdited: boolean;
+  editBlockReason: string;
+  editWindowHours: number;
+  bountyCanRefund: boolean;
+  bountyRefundBlockReason: string;
+  bountyEligibleReplyCount: number;
+  scrollTop: number;
+};
+
+function resolveUrl(to: To): URL {
+  if (typeof to === 'string') return new URL(to, window.location.origin);
+  const path = to.pathname ?? '/';
+  const search = to.search ?? '';
+  const hash = to.hash ?? '';
+  return new URL(path + search + hash, window.location.origin);
+}
+
+/** 预加载对应路由的 lazy chunk（与 App.tsx lazyWithRetry 对齐） */
+function preloadChunk(pathname: string): Promise<unknown> {
+  if (pathname === '/' || /^\/board\//.test(pathname)) {
+    return import('../pages/HomePage');
+  }
+  if (/^\/post\/[^/]+\/edit$/.test(pathname) || pathname === '/compose') {
+    return import('../pages/ComposePage');
+  }
+  if (/^\/post\//.test(pathname)) {
+    return import('../pages/PostDetailPage');
+  }
+  if (pathname === '/profile') return import('../pages/ProfilePage');
+  if (/^\/user\//.test(pathname)) return import('../pages/UserProfilePage');
+  if (pathname === '/favorites') return import('../pages/FavoritesPage');
+  if (pathname === '/projects') return import('../pages/ProjectsPage');
+  if (pathname === '/links') return import('../pages/LinksPage');
+  if (pathname === '/showcase') return import('../pages/ShowcasePage');
+  if (pathname === '/messages') return import('../pages/MessagesPage');
+  if (/^\/page\//.test(pathname)) return import('../pages/SitePageView');
+  if (pathname === '/login') return import('../pages/LoginPage');
+  if (pathname === '/register') return import('../pages/RegisterPage');
+  if (pathname === '/forgot-password') return import('../pages/ForgotPasswordPage');
+  return Promise.resolve();
+}
+
+async function prefetchFeed(url: URL, force: boolean): Promise<void> {
+  const limits = getCachedForumLimits();
+  const pageSize = Math.max(1, limits.page_size_default);
+  const boardMatch = url.pathname.match(/^\/board\/([^/]+)/);
+  const boardId = boardMatch ? (parsePermalinkID(boardMatch[1]) || 0) : 0;
+  const keyword = url.searchParams.get('keyword') || '';
+  const tag = url.searchParams.get('tag') || '';
+  const author = url.searchParams.get('author') || '';
+  const titleOnly = url.searchParams.get('title_only') === '1';
+  const sort = parseFeedSort(url.searchParams.get('sort'), limits.feed_sort_tabs);
+  const key = feedCacheKey({ boardId, keyword, sort, tag, author, titleOnly });
+
+  if (!force) {
+    const hit = getHomeStoreState().getFeed(key);
+    if (hit && hit.posts.length > 0) return;
+  }
+  // force：不提前清空 store，等新数据写入时覆盖，避免软刷新中间态读到空列表
+
+  const data = await api.posts({
+    page: 1,
+    size: pageSize,
+    board_id: boardId || '',
+    keyword: tag ? '' : keyword,
+    tag: tag || '',
+    author: tag ? '' : author,
+    title_only: !tag && titleOnly ? '1' : '',
+    sort,
+  });
+  getHomeStoreState().setFeed(key, {
+    posts: Array.isArray(data.posts) ? data.posts : [],
+    postTotal: data.total ?? 0,
+    page: 1,
+    scrollTop: 0,
+    lastFetchTime: Date.now(),
+  });
+}
+
+async function prefetchPost(id: number, force: boolean): Promise<void> {
+  const key = `post:${id}`;
+  if (!force && getSessionSnapshot(key) !== undefined) return;
+  // force：保留旧快照直到新数据写回，避免软刷新中间态空白
+
+  const myIds = loadMyCommentIds();
+  const [detail, comm] = await Promise.all([
+    api.post(id),
+    api.comments(id, myIds),
+  ]);
+  const snap: PostDetailSnapshot = {
+    post: detail.post,
+    comments: Array.isArray(comm.comments) ? comm.comments : [],
+    poll: detail.poll ?? null,
+    lottery: detail.lottery ?? null,
+    liked: detail.liked,
+    favorited: detail.favorited,
+    canEdit: detail.can_edit ?? false,
+    isEdited: detail.is_edited
+      ?? isTimeDiffSignificant(detail.post.created_at, detail.post.updated_at ?? detail.post.created_at),
+    editBlockReason: detail.edit_block_reason ?? '',
+    editWindowHours: detail.post_edit_window_hours ?? 0,
+    bountyCanRefund: detail.bounty_can_refund ?? true,
+    bountyRefundBlockReason: detail.bounty_refund_block_reason ?? '',
+    bountyEligibleReplyCount: detail.bounty_eligible_reply_count ?? 0,
+    scrollTop: 0,
+  };
+  setSessionSnapshot(key, snap);
+}
+
+async function prefetchUser(id: number, force: boolean): Promise<void> {
+  const profileKey = `user:${id}`;
+  if (!force && getSessionSnapshot(profileKey) !== undefined) return;
+
+  const limits = getCachedForumLimits();
+  const pageSize = limits.page_size_default > 0 ? limits.page_size_default : 20;
+  const [profileRes, postsRes] = await Promise.all([
+    api.userProfile(id),
+    api.posts({ user_id: id, page: 1, size: pageSize, sort: 'latest' }),
+  ]);
+  setSessionSnapshot(profileKey, {
+    profile: profileRes.user,
+    stats: profileRes.stats ?? null,
+  });
+  setSessionSnapshot(`${profileKey}:posts:1:${pageSize}`, {
+    posts: Array.isArray(postsRes.posts) ? postsRes.posts : [],
+    total: postsRes.total ?? 0,
+  });
+}
+
+async function prefetchKeyed<T>(
+  key: string,
+  force: boolean,
+  fetcher: () => Promise<T>,
+): Promise<void> {
+  if (!force && getSessionSnapshot(key) !== undefined) return;
+  const data = await fetcher();
+  setSessionSnapshot(key, data);
+}
+
+/** 静默预热签到（401 / 失败不阻断跳转） */
+async function prefetchCheckIn(force: boolean): Promise<void> {
+  try {
+    const me = await api.me();
+    const id = me.user?.id;
+    if (!id) return;
+    const key = checkInCacheKey(id);
+    if (!force && getSessionSnapshot<CheckInStatus>(key) !== undefined) return;
+    const d = await api.checkInStatus();
+    setSessionSnapshot(key, d.check_in);
+  } catch {
+    // 未登录或接口失败：忽略
+  }
+}
+
+/** 右栏展柜与全页共用 showcase 快照 */
+async function prefetchShowcaseIfEnabled(force: boolean): Promise<void> {
+  const limits = getCachedForumLimits();
+  const enabled = resolveAsideWidgets(limits).some((w) => w.id === 'showcase' && w.enabled);
+  if (!enabled) return;
+  await prefetchKeyed<CommunityShowcaseItem[]>('showcase', force, () =>
+    api.communityShowcase().then((r) => (Array.isArray(r.items) ? r.items : [])),
+  ).catch(() => undefined);
+}
+
+/** MainLayout 壳层：签到 +（可选）展柜，与主内容并行 */
+function prefetchShell(force: boolean): Promise<void> {
+  return Promise.all([
+    prefetchCheckIn(force),
+    prefetchShowcaseIfEnabled(force),
+  ]).then(() => undefined);
+}
+
+/** 是否会挂载前台 MainLayout（非纯 auth / 后台页） */
+export function isMainLayoutPath(pathname: string): boolean {
+  if (pathname.startsWith('/admin')) return false;
+  if (pathname === '/login' || pathname === '/register' || pathname === '/forgot-password') return false;
+  return true;
+}
+
+/** 按目标 URL 预热会话快照 / Feed 缓存（不改 fetch 缓存策略） */
+export async function prefetchData(to: To, opts?: { force?: boolean }): Promise<void> {
+  const force = !!opts?.force;
+  const url = resolveUrl(to);
+  const { pathname } = url;
+
+  const shell = isMainLayoutPath(pathname) ? prefetchShell(force) : Promise.resolve();
+
+  if (pathname === '/' || /^\/board\//.test(pathname)) {
+    await Promise.all([prefetchFeed(url, force), shell]);
+    return;
+  }
+
+  const postEdit = pathname.match(/^\/post\/([^/]+)\/edit$/);
+  if (postEdit) {
+    await shell;
+    return;
+  }
+
+  const postMatch = pathname.match(/^\/post\/([^/]+)/);
+  if (postMatch) {
+    const id = parsePermalinkID(postMatch[1]);
+    await Promise.all([
+      id && !Number.isNaN(id) ? prefetchPost(id, force) : Promise.resolve(),
+      shell,
+    ]);
+    return;
+  }
+
+  const userMatch = pathname.match(/^\/user\/([^/]+)/);
+  if (userMatch) {
+    const id = parsePermalinkID(userMatch[1]);
+    await Promise.all([
+      id && !Number.isNaN(id) ? prefetchUser(id, force) : Promise.resolve(),
+      shell,
+    ]);
+    return;
+  }
+
+  if (pathname === '/favorites') {
+    await Promise.all([
+      prefetchKeyed('favorites', force, () =>
+        api.favorites().then((d) => (Array.isArray(d.favorites) ? d.favorites : [])),
+      ),
+      shell,
+    ]);
+    return;
+  }
+
+  if (pathname === '/projects') {
+    await Promise.all([
+      prefetchKeyed(`projects:1:`, force, () =>
+        api.projects({ page: 1, limit: 30 }).then((d) => ({
+          list: Array.isArray(d.projects) ? d.projects : [],
+          total: d.total ?? 0,
+          totalPages: d.total_pages ?? 0,
+        })),
+      ),
+      shell,
+    ]);
+    return;
+  }
+
+  if (pathname === '/links') {
+    await Promise.all([
+      prefetchKeyed<FriendLinkApply[]>('links:applies', force, () =>
+        api.myFriendLinkApplies().then((r) => r.applies ?? []).catch(() => []),
+      ),
+      shell,
+    ]);
+    return;
+  }
+
+  if (pathname === '/showcase') {
+    await Promise.all([
+      prefetchKeyed('showcase', force, () =>
+        api.communityShowcase().then((r) => (Array.isArray(r.items) ? r.items : [])),
+      ),
+      shell,
+    ]);
+    return;
+  }
+
+  if (pathname === '/messages') {
+    await Promise.all([
+      prefetchKeyed('messages:conv:1', force, () =>
+        api.messageConversations({ page: 1, size: 30 }).then((r) => ({
+          conversations: r.conversations || [],
+          total: r.total || 0,
+          page: r.page || 1,
+        })),
+      ),
+      shell,
+    ]);
+    return;
+  }
+
+  if (pathname === '/profile' || pathname === '/compose') {
+    await shell;
+    return;
+  }
+
+  const pageMatch = pathname.match(/^\/page\/([^/]+)/);
+  if (pageMatch) {
+    const slug = parsePermalinkSlug(pageMatch[1]);
+    await Promise.all([
+      slug
+        ? prefetchKeyed<SitePage | null>(`sitepage:${slug}`, force, () =>
+          api.page(slug).then((d) => d.page),
+        )
+        : Promise.resolve(),
+      shell,
+    ]);
+  }
+}
+
+/** chunk + 数据并行预热 */
+export async function prefetchRoute(to: To, opts?: { force?: boolean }): Promise<void> {
+  const url = resolveUrl(to);
+  await Promise.all([
+    preloadChunk(url.pathname),
+    prefetchData(to, opts),
+  ]);
+}
+
+/** 壳层数据：boards/stats/站点页/右栏（与冷启动、软刷新共用） */
+export async function prefetchLayoutShell(opts?: { force?: boolean }): Promise<void> {
+  await ensureForumLimitsLoaded();
+  const limits = getCachedForumLimits();
+  const widgets = resolveAsideWidgets(limits);
+  const showRecentComments = widgets.some((w) => w.id === 'recent_comments' && w.enabled);
+  const showRecentUsers = widgets.some((w) => w.id === 'recent_users' && w.enabled);
+  const showTagCloud = widgets.some((w) => w.id === 'tag_cloud' && w.enabled);
+  const hideAside = typeof window !== 'undefined'
+    && window.matchMedia('(max-width: 1100px)').matches;
+
+  const tasks: Promise<unknown>[] = [
+    api.boards().then((d) => {
+      setCachedBoards(d.boards ?? []);
+    }).catch(() => undefined),
+    api.stats().then((next) => {
+      if (next) setCachedStats(next);
+    }).catch(() => undefined),
+    ensureSitePagesLoaded({ force: !!opts?.force }),
+  ];
+
+  if (!hideAside) {
+    if (showRecentComments) {
+      tasks.push(
+        api.recentComments().then((d) => {
+          setCachedRecentComments(Array.isArray(d.comments) ? d.comments : []);
+        }).catch(() => undefined),
+      );
+    }
+    if (showRecentUsers) {
+      tasks.push(
+        api.recentUsers().then((d) => {
+          setCachedRecentUsers(Array.isArray(d.users) ? d.users : []);
+        }).catch(() => undefined),
+      );
+    }
+    if (showTagCloud) {
+      tasks.push(
+        api.tags(40).then((d) => {
+          setCachedTags(Array.isArray(d.tags) ? d.tags : []);
+        }).catch(() => undefined),
+      );
+    }
+  }
+
+  await Promise.all(tasks);
+}
+
+let coldBootEnsured = false;
+
+/** main.tsx 是否已完成前台冷启动预热（MainLayout 可同步放行） */
+export function wasColdBootEnsured(): boolean {
+  return coldBootEnsured;
+}
+
+/**
+ * 冷启动：在 createRoot 之前静默预热当前前台路由与壳层。
+ * 不触发顶栏进度条；失败也放行，避免永久空白。
+ */
+export async function ensureColdBootReady(to?: string): Promise<void> {
+  const path = to ?? `${window.location.pathname}${window.location.search}`;
+  const url = resolveUrl(path);
+  if (!isMainLayoutPath(url.pathname)) {
+    coldBootEnsured = true;
+    return;
+  }
+
+  try {
+    await Promise.all([
+      prefetchRoute(path, { force: false }),
+      prefetchLayoutShell(),
+    ]);
+  } catch {
+    // 忽略：仍挂载 App
+  } finally {
+    coldBootEnsured = true;
+  }
+}

frontend/src/utils/sessionPageCache.ts

@@ -0,0 +1,45 @@
+/** 会话内页面快照：前进后退命中则不再请求，手动刷新或登录态变化时清空 */
+
+const MAX_ENTRIES = 48;
+
+const order: string[] = [];
+const store = new Map<string, unknown>();
+
+function touch(key: string) {
+  const i = order.indexOf(key);
+  if (i >= 0) order.splice(i, 1);
+  order.push(key);
+  while (order.length > MAX_ENTRIES) {
+    const old = order.shift();
+    if (old) store.delete(old);
+  }
+}
+
+export function getSessionSnapshot<T>(key: string): T | undefined {
+  if (!store.has(key)) return undefined;
+  touch(key);
+  return store.get(key) as T;
+}
+
+export function setSessionSnapshot<T>(key: string, data: T): void {
+  store.set(key, data);
+  touch(key);
+}
+
+export function deleteSessionSnapshot(key: string): void {
+  if (!store.delete(key)) return;
+  const i = order.indexOf(key);
+  if (i >= 0) order.splice(i, 1);
+}
+
+/** 不传 prefix 则清空全部；否则只删该前缀的 key */
+export function clearSessionSnapshots(prefix?: string): void {
+  if (!prefix) {
+    store.clear();
+    order.length = 0;
+    return;
+  }
+  for (const key of [...store.keys()]) {
+    if (key.startsWith(prefix)) deleteSessionSnapshot(key);
+  }
+}

frontend/src/utils/softRefresh.ts

@@ -0,0 +1,20 @@
+import { prefetchLayoutShell, prefetchRoute } from './prefetchRoute';
+
+/** 软刷新齐套后的单一提交：各组件同一拍从 cache/快照同步 UI，禁止分批闪烁 */
+export const PAGE_SOFT_REFRESH_COMMIT_EVENT = 'page-soft-refresh-commit';
+
+/**
+ * 静默刷新当前页：不改画面、无进度条，预热齐套后派发一次 commit。
+ */
+export async function softRefreshCurrentPage(to?: string): Promise<void> {
+  const path = to ?? `${window.location.pathname}${window.location.search}`;
+  try {
+    await Promise.all([
+      prefetchRoute(path, { force: true }),
+      prefetchLayoutShell({ force: true }),
+    ]);
+  } catch {
+    // 仍派发 commit，让界面有机会用已有缓存自愈
+  }
+  window.dispatchEvent(new Event(PAGE_SOFT_REFRESH_COMMIT_EVENT));
+}

frontend/src/utils/spaTransition.ts

@@ -0,0 +1,110 @@
+import type { NavigateFunction, NavigateOptions, To } from 'react-router-dom';
+import { notify } from '@/lib/notify';
+import { prefetchRoute } from './prefetchRoute';
+
+type Listener = (active: boolean) => void;
+
+const listeners = new Set<Listener>();
+let activeCount = 0;
+let seq = 0;
+
+function emit() {
+  const active = activeCount > 0;
+  listeners.forEach((fn) => fn(active));
+}
+
+/** 订阅顶栏进度条显隐 */
+export function subscribeSpaTransition(fn: Listener): () => void {
+  listeners.add(fn);
+  fn(activeCount > 0);
+  return () => { listeners.delete(fn); };
+}
+
+/** 开始一次过渡（可嵌套，全部结束才收条） */
+export function startTransition(): number {
+  const id = ++seq;
+  activeCount += 1;
+  emit();
+  return id;
+}
+
+/** 结束过渡；若 id 已过期则忽略 */
+export function doneTransition(id?: number) {
+  if (id != null && id !== seq && activeCount > 0) {
+    // 仍允许减计数，避免卡死；连续点击用 seq 作废预取即可
+  }
+  activeCount = Math.max(0, activeCount - 1);
+  emit();
+}
+
+export function isSpaTransitionActive(): boolean {
+  return activeCount > 0;
+}
+
+export type TransitionToOpts = NavigateOptions & {
+  /** 强制重拉（Logo / 同 URL 刷新），跳过会话快照 */
+  force?: boolean;
+  /** 跳过等待，立即导航（纠偏、POP 等） */
+  immediate?: boolean;
+  /** 不显示顶栏进度条（软刷新换页） */
+  silent?: boolean;
+};
+
+function toPathname(to: To): string {
+  if (typeof to === 'number') return '';
+  if (typeof to === 'string') {
+    try {
+      return new URL(to, window.location.origin).pathname;
+    } catch {
+      return to.split('?')[0].split('#')[0];
+    }
+  }
+  return to.pathname ?? '';
+}
+
+function isOnlyHashChange(to: To): boolean {
+  if (typeof to !== 'string') return false;
+  if (!to.startsWith('#')) return false;
+  return true;
+}
+
+/**
+ * 站内点击：顶栏进度条 + 预热 chunk/接口后再跳转。
+ * `nav(-1)`、仅 hash、immediate、外链风格路径直接走。
+ */
+export async function transitionTo(
+  nav: NavigateFunction,
+  to: To | number,
+  opts?: TransitionToOpts,
+): Promise<void> {
+  const { force, immediate, silent, ...navOpts } = opts ?? {};
+
+  if (typeof to === 'number' || immediate || isOnlyHashChange(to as To)) {
+    nav(to as To, navOpts);
+    return;
+  }
+
+  const target = to as To;
+  const path = toPathname(target);
+  // 后台第一期不做等待跳转
+  if (path.startsWith('/admin')) {
+    nav(target, navOpts);
+    return;
+  }
+
+  const id = silent ? undefined : startTransition();
+  const mySeq = silent ? seq : (id as number);
+  try {
+    await prefetchRoute(target, { force: !!force });
+    if (!silent && mySeq !== seq) return;
+    nav(target, navOpts);
+  } catch (e: unknown) {
+    if (!silent && mySeq !== seq) return;
+    notify.error(e instanceof Error ? e.message : '加载失败');
+  } finally {
+    if (id != null) {
+      if (mySeq === seq) doneTransition(id);
+      else doneTransition();
+    }
+  }
+}

handler/api.go

@@ -967,6 +967,11 @@ func (h *Handlers) APIPosts(c *gin.Context) {
 	author := strings.TrimSpace(c.Query("author"))
 	titleOnly := c.Query("title_only") == "1" || strings.EqualFold(c.Query("title_only"), "true")
 
+	sort := strings.TrimSpace(c.Query("sort"))
+	if sort == "" {
+		sort = h.Settings.DefaultFeedSort()
+	}
+
 	q := service.PostListQuery{
 		BoardID:       uint(boardID),
 		UserID:        uint(userID),
@@ -976,7 +981,7 @@ func (h *Handlers) APIPosts(c *gin.Context) {
 		Tag:           tag,
 		Author:        author,
 		TitleOnly:     titleOnly,
-		Sort:          c.DefaultQuery("sort", "reply"),
+		Sort:          sort,
 		ViewerID:      h.currentUserID(c),
 		ViewerIsAdmin: h.isAdmin(c),
 	}

service/settings.go

@@ -50,6 +50,7 @@ const (
 	SettingNavShowShowcase          = "nav_show_showcase"
 	SettingFooterShowShowcase       = "footer_show_showcase"
 	SettingFeedListStyle            = "feed_list_style"
+	SettingFeedSortTabs             = "feed_sort_tabs"
 
 	// 伪静态键名见 permalink.go：SettingPermalinkEnabled / SettingPermalinkExt
 
@@ -158,7 +159,8 @@ type ForumLimits struct {
 	NavShowShowcase         bool          `json:"nav_show_showcase"`
 	FooterShowShowcase      bool          `json:"footer_show_showcase"`
 
-	FeedListStyle string `json:"feed_list_style"`
+	FeedListStyle string       `json:"feed_list_style"`
+	FeedSortTabs  []FeedSortTab `json:"feed_sort_tabs"`
 
 	PermalinkEnabled bool   `json:"permalink_enabled"`
 	PermalinkExt     string `json:"permalink_ext"`
@@ -170,12 +172,23 @@ type AsideWidget struct {
 	Enabled bool   `json:"enabled"`
 }
 
+// FeedSortTab 首页 Feed 排序标签（名称 / 顺序 / 启停）
+type FeedSortTab struct {
+	ID      string `json:"id"`      // reply | latest | hot
+	Label   string `json:"label"`   // 展示名
+	Enabled bool   `json:"enabled"`
+}
+
 const (
 	AsideWidgetTagCloud       = "tag_cloud"
 	AsideWidgetRecentComments = "recent_comments"
 	AsideWidgetRecentUsers    = "recent_users"
 	AsideWidgetFriendLinks    = "friend_links"
 	AsideWidgetShowcase       = "showcase"
+
+	FeedSortReply  = "reply"
+	FeedSortLatest = "latest"
+	FeedSortHot    = "hot"
 )
 
 var asideWidgetDefaultOrder = []string{
@@ -186,6 +199,18 @@ var asideWidgetDefaultOrder = []string{
 	AsideWidgetShowcase,
 }
 
+var feedSortTabDefaultOrder = []string{
+	FeedSortReply,
+	FeedSortLatest,
+	FeedSortHot,
+}
+
+var feedSortTabDefaultLabels = map[string]string{
+	FeedSortReply:  "新评论",
+	FeedSortLatest: "新帖子",
+	FeedSortHot:    "推荐帖",
+}
+
 // ForumLimitsPublic 前台可见的限制（不含限流等内部配置）
 type ForumLimitsPublic struct {
 	PostTitleMax     int `json:"post_title_max"`
@@ -214,7 +239,8 @@ type ForumLimitsPublic struct {
 	NavShowShowcase         bool          `json:"nav_show_showcase"`
 	FooterShowShowcase      bool          `json:"footer_show_showcase"`
 
-	FeedListStyle string `json:"feed_list_style"`
+	FeedListStyle string        `json:"feed_list_style"`
+	FeedSortTabs  []FeedSortTab `json:"feed_sort_tabs"`
 
 	PermalinkEnabled bool   `json:"permalink_enabled"`
 	PermalinkExt     string `json:"permalink_ext"`
@@ -261,6 +287,7 @@ var forumSettingDefs = []settingDef{
 
 var feedSettingDefaults = map[string]string{
 	SettingFeedListStyle: "title",
+	SettingFeedSortTabs:  `[{"id":"reply","label":"新评论","enabled":true},{"id":"latest","label":"新帖子","enabled":true},{"id":"hot","label":"推荐帖","enabled":true}]`,
 }
 
 var asideSettingDefaults = map[string]string{
@@ -656,6 +683,7 @@ func (s *ForumSettingsService) Limits() ForumLimits {
 		FooterShowShowcase:      s.FooterShowShowcase(),
 
 		FeedListStyle: s.FeedListStyle(),
+		FeedSortTabs:  s.FeedSortTabs(),
 
 		PermalinkEnabled: permalink.Enabled,
 		PermalinkExt:     permalink.Ext,
@@ -692,6 +720,7 @@ func (s *ForumSettingsService) PublicLimits() ForumLimitsPublic {
 		FooterShowShowcase:      limits.FooterShowShowcase,
 
 		FeedListStyle: limits.FeedListStyle,
+		FeedSortTabs:  limits.FeedSortTabs,
 
 		PermalinkEnabled: limits.PermalinkEnabled,
 		PermalinkExt:     limits.PermalinkExt,
@@ -776,6 +805,14 @@ func (s *ForumSettingsService) UpdateLimits(in ForumLimits) error {
 	if err := s.setString(SettingFeedListStyle, style); err != nil {
 		return err
 	}
+	tabs := NormalizeFeedSortTabs(in.FeedSortTabs)
+	tabsJSON, err := json.Marshal(tabs)
+	if err != nil {
+		return err
+	}
+	if err := s.setString(SettingFeedSortTabs, string(tabsJSON)); err != nil {
+		return err
+	}
 	return nil
 }
 
@@ -1064,6 +1101,76 @@ func (s *ForumSettingsService) FeedListStyle() string {
 	return v
 }
 
+func isValidFeedSortTabID(id string) bool {
+	switch id {
+	case FeedSortReply, FeedSortLatest, FeedSortHot:
+		return true
+	default:
+		return false
+	}
+}
+
+// NormalizeFeedSortTabs 校验并补全 Feed 排序标签（顺序保留，至少一项启用）
+func NormalizeFeedSortTabs(in []FeedSortTab) []FeedSortTab {
+	seen := make(map[string]bool, len(feedSortTabDefaultOrder))
+	out := make([]FeedSortTab, 0, len(feedSortTabDefaultOrder))
+	for _, t := range in {
+		id := strings.TrimSpace(t.ID)
+		if !isValidFeedSortTabID(id) || seen[id] {
+			continue
+		}
+		seen[id] = true
+		label := strings.TrimSpace(t.Label)
+		if label == "" {
+			label = feedSortTabDefaultLabels[id]
+		}
+		out = append(out, FeedSortTab{ID: id, Label: label, Enabled: t.Enabled})
+	}
+	for _, id := range feedSortTabDefaultOrder {
+		if seen[id] {
+			continue
+		}
+		out = append(out, FeedSortTab{
+			ID:      id,
+			Label:   feedSortTabDefaultLabels[id],
+			Enabled: true,
+		})
+	}
+	hasEnabled := false
+	for _, t := range out {
+		if t.Enabled {
+			hasEnabled = true
+			break
+		}
+	}
+	if !hasEnabled && len(out) > 0 {
+		out[0].Enabled = true
+	}
+	return out
+}
+
+func (s *ForumSettingsService) FeedSortTabs() []FeedSortTab {
+	raw := strings.TrimSpace(s.getString(SettingFeedSortTabs, ""))
+	if raw == "" {
+		raw = feedSettingDefaults[SettingFeedSortTabs]
+	}
+	var tabs []FeedSortTab
+	if raw != "" {
+		_ = json.Unmarshal([]byte(raw), &tabs)
+	}
+	return NormalizeFeedSortTabs(tabs)
+}
+
+// DefaultFeedSort 返回配置中第一个启用的排序键
+func (s *ForumSettingsService) DefaultFeedSort() string {
+	for _, t := range s.FeedSortTabs() {
+		if t.Enabled {
+			return t.ID
+		}
+	}
+	return FeedSortReply
+}
+
 // MailConfig 读取 SMTP 配置（密码不回显明文）
 func (s *ForumSettingsService) MailConfig() MailConfig {
 	port, _ := strconv.Atoi(s.getString(SettingSMTPPort, "465"))