diff --git a/web/src/app/AppNav.tsx b/web/src/app/AppNav.tsx
index 2441aa8..7ae6c14 100644
--- a/web/src/app/AppNav.tsx
+++ b/web/src/app/AppNav.tsx
@@ -74,7 +74,7 @@ export function AppNav({ mode }: { mode: Exclude<NavMode, 'hidden'> }) {
         </li>;
       })}
     </ul>
-    {user && <Link className="app-nav-user" to="/me" aria-label="我的账号">
+    {user && <Link className="app-nav-user" to="/me" aria-label={`我的账号：${name}，${connection.label}`}>
       <span className="app-nav-avatar" aria-hidden="true">{Array.from(name)[0]}</span>
       <span className="app-nav-user-text"><strong>{name}</strong><small title={host(runtime.api.baseUrl)}><i className="app-nav-status" data-state={connection.state} aria-hidden="true" />{connection.label}</small></span>
     </Link>}
diff --git a/web/src/features/home/pages/HomePage.tsx b/web/src/features/home/pages/HomePage.tsx
index bad4824..ab844e8 100644
--- a/web/src/features/home/pages/HomePage.tsx
+++ b/web/src/features/home/pages/HomePage.tsx
@@ -29,7 +29,7 @@ function Resume({ book }: { book: ContinueReadingItem }) {
   const runtime = useRuntime();
   const src = useCover(runtime.api, book.coverUrl);
   const percent = Math.round(Math.max(0, Math.min(1, book.percentage)) * 100);
-  return <Link className="home-hero" to={`/book/${encodeURIComponent(book.id)}`} aria-label={`继续阅读 ${book.title}`}>
+  return <Link className="home-hero" to={`/book/${encodeURIComponent(book.id)}`}>
     <span className="home-hero-cover" aria-hidden="true">{src ? <img src={src} alt="" /> : <b>{book.title}</b>}</span>
     <span className="home-hero-text">
       <strong>{book.title || '未命名'}</strong>
diff --git a/web/src/features/library/pages/LibraryPage.tsx b/web/src/features/library/pages/LibraryPage.tsx
index 3f7a70d..a3b1c22 100644
--- a/web/src/features/library/pages/LibraryPage.tsx
+++ b/web/src/features/library/pages/LibraryPage.tsx
@@ -123,13 +123,13 @@ function LibraryFilesAdminPage() {
   const remove = async (paths = selected) => { if (paths.length && await confirm(paths.length === 1 ? '删除' : `删除 ${paths.length} 项`, `${describePaths(paths)}将从磁盘上删除，无法撤销。`)) await mutate(() => runtime.api.browseDelete(paths), result => ({ text: `已删除 ${result.removed} 项` })); };
   const pages = query.data ? Math.max(1, Math.ceil(query.data.total / 200)) : 1;
   useEffect(() => { if (query.data && page > pages) setParams({ ...(path ? { path } : {}), ...(pages > 1 ? { page: String(pages) } : {}) }, { replace: true }); });
-  const crumbs = <div className="manager-crumbs">{(query.data?.crumbs ?? [{ name: '书库', path: '' }]).map((crumb, index, all) => <span key={`${crumb.path}-${index}`}>{index > 0 && <span className="manager-crumb-sep">/</span>}<button type="button" className="manager-crumb" aria-current={index === all.length - 1 ? 'true' : undefined} onClick={() => go(crumb.path)}>{crumb.name}</button></span>)}</div>;
+  const crumbs = <div className="manager-crumbs">{(query.data?.crumbs ?? [{ name: '书库', path: '' }]).map((crumb, index, all) => <span key={`${crumb.path}-${index}`}>{index > 0 && <span className="manager-crumb-sep">/</span>}<button type="button" className="manager-crumb" aria-current={index === all.length - 1 ? 'location' : undefined} onClick={() => go(crumb.path)}>{crumb.name}</button></span>)}</div>;
   return <div className="library-screen library-files-screen"><CollectionHeader className="file-manager-header" title="文件管理" subtitle="管理书库中的文件与文件夹" backTo="/library" actions={<><label className={'button collection-link' + (!query.data?.writable ? ' is-disabled' : '')}><Upload size={18} /><span>上传书籍</span><input hidden type="file" multiple disabled={!query.data?.writable} onChange={event => { const files = Array.from(event.currentTarget.files ?? []); if (files.length) void mutate(() => runtime.api.upload(files, path, 'rename'), describeUpload); event.currentTarget.value = ''; }} /></label><button type="button" className="button collection-link" disabled={!query.data?.writable} onClick={mkdir}><Plus size={18} /><span>新建文件夹</span></button></>} footer={crumbs} />
     <main className="manager-body">
       {selected.length > 0 && <div className="manager-actions"><span className="manager-selected-count">已选 {selected.length} 项</span><button type="button" className="button" onClick={() => void move()}>移动</button><button type="button" className="button danger" onClick={() => void remove()}>删除</button><button type="button" className="button" onClick={() => setSelected([])}>清除</button></div>}
       <FloatingNotice message={feedback?.text ?? ''} error={!!feedback?.error} kind="success" />
       {query.isPending && <FloatingNotice message="正在读取文件列表…" busy />}{query.error && <Callout tone="error" title="文件列表加载失败" action={{ label: '重试', onClick: () => void query.refetch() }}>{query.error.message}</Callout>}
-      {query.data && <div className={'manager-list' + (selected.length ? ' selection-mode' : '')}>{query.data.entries.length === 0 ? <div className="empty-state collection-empty"><Folder className="empty-glyph" aria-hidden="true" /><p>这个文件夹是空的</p><p className="muted">{query.data.writable ? '使用上方的上传或新建文件夹，整理你的书库。' : '当前目录只读，可以浏览已有文件。'}</p></div> : query.data.entries.map(entry => { const checked = selected.includes(entry.path); return <div className="manager-row" data-type={entry.type} data-selected={checked ? 'true' : undefined} key={entry.path} tabIndex={0}><button type="button" className="manager-check" role="checkbox" aria-label={`选择${entry.name}`} aria-checked={checked} onClick={event => { event.stopPropagation(); setSelected(items => items.includes(entry.path) ? items.filter(item => item !== entry.path) : [...items, entry.path]); }} /><div className="manager-name"><span className="manager-icon">{entry.type === 'dir' ? <Folder size={20} /> : <FileText size={20} />}</span><span className="manager-label">{entry.type === 'dir' ? <button type="button" className="manager-crumb" onClick={() => go(entry.path)}>{entry.name}</button> : entry.name}</span></div><div className="manager-meta muted">{entryMeta(entry)}</div><ActionMenu className="manager-more" label={`${entry.name} 的操作`} title={entry.name} items={[{ label: '重命名', disabled: !query.data.writable, onSelect: () => void rename(entry) }, { label: '选择', onSelect: () => setSelected([entry.path]) }, { label: '移动…', disabled: !query.data.writable, onSelect: () => void move([entry.path]) }, { label: '删除', danger: true, disabled: !query.data.writable, onSelect: () => void remove([entry.path]) }]} /></div>; })}</div>}
+      {query.data && <div className={'manager-list' + (selected.length ? ' selection-mode' : '')}>{query.data.entries.length === 0 ? <div className="empty-state collection-empty"><Folder className="empty-glyph" aria-hidden="true" /><p>这个文件夹是空的</p><p className="muted">{query.data.writable ? '使用上方的上传或新建文件夹，整理你的书库。' : '当前目录只读，可以浏览已有文件。'}</p></div> : query.data.entries.map(entry => { const checked = selected.includes(entry.path); return <div className="manager-row" data-type={entry.type} data-selected={checked ? 'true' : undefined} key={entry.path}><button type="button" className="manager-check" role="checkbox" aria-label={`选择${entry.name}`} aria-checked={checked} onClick={event => { event.stopPropagation(); setSelected(items => items.includes(entry.path) ? items.filter(item => item !== entry.path) : [...items, entry.path]); }} /><div className="manager-name"><span className="manager-icon">{entry.type === 'dir' ? <Folder size={20} /> : <FileText size={20} />}</span><span className="manager-label">{entry.type === 'dir' ? <button type="button" className="manager-crumb" onClick={() => go(entry.path)}>{entry.name}</button> : entry.name}</span></div><div className="manager-meta muted">{entryMeta(entry)}</div><ActionMenu className="manager-more" label={`${entry.name} 的操作`} title={entry.name} items={[{ label: '重命名', disabled: !query.data.writable, onSelect: () => void rename(entry) }, { label: '选择', onSelect: () => setSelected([entry.path]) }, { label: '移动…', disabled: !query.data.writable, onSelect: () => void move([entry.path]) }, { label: '删除', danger: true, disabled: !query.data.writable, onSelect: () => void remove([entry.path]) }]} /></div>; })}</div>}
       {query.data && <div className="manager-status muted">{query.data.dirs} 个文件夹 · {query.data.files} 个文件 · {formatBytes(query.data.size)}</div>}
       {pages > 1 && <Pager className="manager-pager" page={Math.min(page, pages)} pageCount={pages} busy={query.isFetching} onGo={next => go(path, next)} />}
     </main>{dialog && <DialogView dialog={dialog} destructive="删除" onClose={answer => { const current = dialog; setDialog(null); current.resolve(answer as never); }} />}</div>;
diff --git a/web/src/features/sources/pages/SourcesPage.tsx b/web/src/features/sources/pages/SourcesPage.tsx
index 185d255..a19b87c 100644
--- a/web/src/features/sources/pages/SourcesPage.tsx
+++ b/web/src/features/sources/pages/SourcesPage.tsx
@@ -4,7 +4,7 @@ import { notify } from '../../../ui/notifications.ts';
 import { Button, Callout, IconTextButton } from '../../../ui/toolkit.tsx';
 import { SourcesHeader } from '../components/SourcesHeader.tsx';
 import { SourceBookDetailSheet } from '../components/SourceBookDetailSheet.tsx';
-import { Link, useLocation, useNavigate } from 'react-router-dom';
+import { Link, useLocation, useNavigate, useSearchParams } from 'react-router-dom';
 import { useEffect, useRef, useState } from 'react';
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
 import { ChevronRight, Plus, Search } from 'lucide-react';
@@ -19,6 +19,7 @@ import { CatalogFeedback } from '../../../ui/catalog-feedback.tsx';
 import { PluginManager } from '../components/PluginManager.tsx';
 
 type SourceTab = 'search' | 'sources' | 'updates' | 'plugins';
+const SOURCE_TABS: SourceTab[] = ['search', 'sources', 'updates', 'plugins'];
 type SearchState = 'idle' | 'searching' | 'stopped' | 'complete' | 'error' | 'limited';
 
 export function SourcesPage() {
@@ -27,7 +28,13 @@ export function SourcesPage() {
   const queryClient = useQueryClient();
   const admin = useAuthStore(state => state.verifiedUser?.role === 'admin');
   // /sources/plugins opens the hub on its 插件管理 tab.
-  const [tab, setTab] = useState<SourceTab>(useLocation().pathname === '/sources/plugins' ? 'plugins' : 'search');
+  // The tab is part of the URL (?tab=), so back from a source's editor or a reload
+  // returns to it; /sources/plugins stays the plugins tab's own address.
+  const [params, setParams] = useSearchParams();
+  const pluginsPath = useLocation().pathname === '/sources/plugins';
+  const requested = params.get('tab') as SourceTab | null;
+  const tab: SourceTab = requested && SOURCE_TABS.includes(requested) ? requested : pluginsPath ? 'plugins' : 'search';
+  const setTab = (next: SourceTab) => setParams(previous => { const merged = new URLSearchParams(previous); if (next === 'search' && !pluginsPath) merged.delete('tab'); else merged.set('tab', next); return merged; }, { replace: true });
   const [sourceId, setSourceId] = useState('');
   const [keyword, setKeyword] = useState('');
   const [catalogPage, setCatalogPage] = useState<SourcePage>();
@@ -106,12 +113,22 @@ export function SourcesPage() {
     return () => { ++catalogEpoch.current; searchRun.current?.abort(); searchRun.current = null; };
   }, [selectedSourceId]);
   useEffect(() => { if (detail && detailQuery.data) setDetail({ ...detail, ...detailQuery.data }); }, [detailQuery.data]);
+  const tabList = ([['search', '搜书'], ['sources', '书源管理'], ['updates', '自动追更'], ...(admin ? [['plugins', '插件管理']] : [])] as Array<[SourceTab, string]>);
   return <div className="sources-screen sources-hub">
     <SourcesHeader title="书源与追更" backTo="/shelf" />
     <nav className="sources-tabs" role="tablist" aria-label="书源功能">
-      {([['search', '搜书'], ['sources', '书源管理'], ['updates', '自动追更'], ...(admin ? [['plugins', '插件管理']] : [])] as Array<[SourceTab, string]>).map(([id, label]) => <button key={id} type="button" role="tab" aria-selected={tab === id} onClick={() => setTab(id)}>{label}{id === 'updates' && (subscriptions.data ?? []).some(item => item.newChapters > 0) && <span className="sources-tab-dot" aria-label="有更新" />}</button>)}
+      {tabList.map(([id, label], index) => <button key={id} id={`sources-tab-${id}`} type="button" role="tab" aria-selected={tab === id} aria-controls="sources-panel" tabIndex={tab === id ? 0 : -1} onClick={() => setTab(id)} onKeyDown={event => {
+        // Arrow keys move between tabs, one tab stop for the whole row (WAI-ARIA tabs).
+        const step = event.key === 'ArrowRight' ? 1 : event.key === 'ArrowLeft' ? -1 : 0;
+        const target = event.key === 'Home' ? 0 : event.key === 'End' ? tabList.length - 1 : step ? (index + step + tabList.length) % tabList.length : -1;
+        if (target < 0) return;
+        event.preventDefault();
+        const next = tabList[target]![0];
+        setTab(next);
+        document.getElementById(`sources-tab-${next}`)?.focus();
+      }}>{label}{id === 'updates' && (subscriptions.data ?? []).some(item => item.newChapters > 0) && <span className="sources-tab-dot" aria-label="有更新" />}</button>)}
     </nav>
-    <main className="sources-body" role="tabpanel">
+    <main className="sources-body" role="tabpanel" id="sources-panel" aria-labelledby={`sources-tab-${tab}`}>
       {tab === 'search' && <>
         <section className="sources-card source-picker">
           {/* The tab already says 搜书; with no source there is nothing to pick, so no disabled picker either. */}