diff --git a/web/src/features/home/ChannelList.module.css b/web/src/features/home/ChannelList.module.css
index 95b7202..cfd9a3a 100644
--- a/web/src/features/home/ChannelList.module.css
+++ b/web/src/features/home/ChannelList.module.css
@@ -3,6 +3,14 @@
   font-size: 13px;
 }
 
+.quiet {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  overflow: hidden;
+  clip-path: inset(50%);
+}
+
 .list {
   margin: 0;
   padding: 0;
diff --git a/web/src/features/home/ChannelList.tsx b/web/src/features/home/ChannelList.tsx
index 6f0b1f9..94cbbb8 100644
--- a/web/src/features/home/ChannelList.tsx
+++ b/web/src/features/home/ChannelList.tsx
@@ -11,9 +11,11 @@ interface Props {
   kind: 'channel' | 'share';
   title: string;
   onOpen: (c: ChannelInfo | Share) => void;
+  /** 标题只给屏幕阅读器(所在分区已有标题) */
+  quietTitle?: boolean;
 }
 
-export function ChannelList({ kind, title, onOpen }: Props) {
+export function ChannelList({ kind, title, onOpen, quietTitle = false }: Props) {
   const channels = useChannels((s) => s.list);
   const forgetChannel = useChannels((s) => s.forget);
   const shares = useShares((s) => s.list);
@@ -24,7 +26,7 @@ export function ChannelList({ kind, title, onOpen }: Props) {
 
   return (
     <section aria-label={title}>
-      <h2 className={styles.h}>{title}</h2>
+      <h2 className={`${styles.h} ${quietTitle ? styles.quiet : ''}`}>{title}</h2>
       <ul className={styles.list}>
         {list.map((c) => (
           <li key={c.id} className={styles.row}>
diff --git a/web/src/features/home/Home.tsx b/web/src/features/home/Home.tsx
index ffa383f..166896d 100644
--- a/web/src/features/home/Home.tsx
+++ b/web/src/features/home/Home.tsx
@@ -4,10 +4,12 @@ import { buildInfo } from '@/lib/buildInfo';
 import type { ChannelInfo, Share } from '@/core-bridge/types';
 import type { ClipboardPayload } from '@/lib/clipboard';
 import { useGlobalPaste } from '@/lib/useGlobalPaste';
+import { useChannels } from '@/store/channels';
 import { useShares } from '@/store/shares';
 import { solveCreationCaptcha } from '@/core-bridge/captcha';
 import { errorMessage } from '@/core-bridge/errors';
 import { Button } from '@/ui/Button';
+import { Icon } from '@/ui/Icon';
 import { ThemeMenu } from '@/ui/ThemeMenu';
 import { ChannelList } from './ChannelList';
 import { CreateSheet } from './CreateSheet';
@@ -16,10 +18,10 @@ import styles from './Home.module.css';
 
 const ScanSheet = lazy(() => import('@/features/scan/ScanSheet').then((m) => ({ default: m.ScanSheet })));
 
-/** 初始状态:什么都没创建时看到的页面。核心是「快速分享」 */
+/** 首页:左边「便捷分享」(临时、只读、对方无需账号),右边「空间」(长期、多人、登录使用) */
 export function Home() {
   const createDraft = useShares((s) => s.createDraft);
-  const shares = useShares((s) => s.list);
+  const channels = useChannels((s) => s.list);
   const [createOpen, setCreateOpen] = useState(false);
   const [scanOpen, setScanOpen] = useState(false);
   const [busy, setBusy] = useState(false);
@@ -59,13 +61,21 @@ export function Home() {
   return (
     <div className={styles.page}>
       <div className={styles.appearance}><ThemeMenu /></div>
-      <main className={`${styles.main} ${styles.dashboard} ${shares.length ? styles.hasShares : ''}`}>
+      <main className={`${styles.main} ${styles.dashboard}`}>
         <header className={`${styles.head} ${styles.dashboardHead}`}>
           <h1 className={styles.logo}>WebDrop</h1>
-          <p className={styles.sub}>在自己的设备之间快速传文件和文本,也可以分享给别人。</p>
+          <p className={styles.sub}>设备之间传文件，也能分享给别人。</p>
         </header>
 
-        <div className={styles.primaryColumn}>
+        <section className={styles.zone} aria-labelledby="share-title">
+          <div className={styles.zoneHead}>
+            <span className={styles.zoneIcon}><Icon name="share" size={20} /></span>
+            <div>
+              <h2 id="share-title" className={styles.zoneTitle}>便捷分享</h2>
+              <p className={styles.zoneHint}>临时 · 只读 · 对方无需账号</p>
+            </div>
+            <span className={styles.zoneBadge}><Icon name="lock" size={13} /> 端到端加密</span>
+          </div>
           <QuickShare
             busy={busy}
             text={shareText}
@@ -75,24 +85,24 @@ export function Home() {
             onShare={share}
           />
           {failedMessage ? <p role="alert" className={styles.error}>创建分享失败：{failedMessage}</p> : null}
+          <ChannelList kind="share" title="我的分享" onOpen={open} />
+        </section>
 
-          <section className={styles.channels} aria-labelledby="channels-title">
-            <div className={styles.sectionHead}>
-              <h2 id="channels-title">空间工作区</h2>
-              <p>同一账号跨设备使用，也可邀请其他账号共同使用频道与文件。</p>
+        <section className={styles.zone} aria-labelledby="space-title">
+          <div className={styles.zoneHead}>
+            <span className={styles.zoneIcon}><Icon name="folder" size={20} /></span>
+            <div>
+              <h2 id="space-title" className={styles.zoneTitle}>空间</h2>
+              <p className={styles.zoneHint}>长期 · 多人 · 登录使用</p>
             </div>
-            <div className={styles.actions}>
-              <Button icon="edit" onClick={() => setCreateOpen(true)}>新建空间</Button>
-              <Button icon="scan" onClick={() => setScanOpen(true)}>加入空间</Button>
-            </div>
-
-            <ChannelList kind="channel" title="我的空间" onOpen={open} />
-            <p className={styles.note}>空间密钥按账号加密分发，登录其他设备后可自动恢复。已授权成员可读取空间历史。</p>
-          </section>
-        </div>
-
-        {shares.length ? <aside className={styles.secondaryColumn} aria-label="我的分享"><ChannelList kind="share" title="我的分享" onOpen={open} /></aside> : null}
-
+          </div>
+          <ChannelList kind="channel" title="我的空间" onOpen={open} quietTitle />
+          {channels.length === 0 ? <p className={styles.empty}>还没有空间。</p> : null}
+          <div className={styles.actions}>
+            <Button icon="plus" onClick={() => setCreateOpen(true)}>新建空间</Button>
+            <Button icon="scan" onClick={() => setScanOpen(true)}>加入空间</Button>
+          </div>
+        </section>
       </main>
 
       <aside className={styles.buildInfo} aria-label="构建信息">
diff --git a/web/src/features/home/QuickShare.module.css b/web/src/features/home/QuickShare.module.css
index 5c4e524..1dc813a 100644
--- a/web/src/features/home/QuickShare.module.css
+++ b/web/src/features/home/QuickShare.module.css
@@ -14,36 +14,6 @@
   background: var(--busy-soft);
 }
 
-.head {
-  display: flex;
-  align-items: flex-start;
-  justify-content: space-between;
-  gap: var(--space-3);
-}
-
-.title {
-  margin: 0;
-  font-size: 18px;
-}
-
-.hint {
-  margin: var(--space-1) 0 0;
-  color: var(--text-dim);
-  font-size: 13px;
-}
-
-.tag {
-  display: inline-flex;
-  flex: 0 0 auto;
-  align-items: center;
-  gap: var(--space-1);
-  padding: var(--space-1) var(--space-2);
-  border-radius: var(--radius-sm);
-  background: var(--ok-soft);
-  color: var(--ok);
-  font-size: 12px;
-}
-
 .editor {
   width: 100%;
   min-height: 112px;
diff --git a/web/src/features/home/QuickShare.tsx b/web/src/features/home/QuickShare.tsx
index 74e9112..2e9d9d8 100644
--- a/web/src/features/home/QuickShare.tsx
+++ b/web/src/features/home/QuickShare.tsx
@@ -14,7 +14,7 @@ interface Props {
   onShare: (payload: ClipboardPayload) => Promise<boolean>;
 }
 
-/** 临时分享入口:先收集文本和文件,确认后再建立草稿。 */
+/** 便捷分享的输入区:先收集文本和文件,确认后再建立草稿。标题与说明由 Home 的分区头提供 */
 export function QuickShare({ busy, text, files, onTextChange, onFilesChange, onShare }: Props) {
   const touch = useMediaQuery('(pointer: coarse)');
   const fileRef = useRef<HTMLInputElement>(null);
@@ -59,18 +59,10 @@ export function QuickShare({ busy, text, files, onTextChange, onFilesChange, onS
       <input ref={galleryRef} type="file" accept="image/*,video/*" multiple hidden onChange={(event) => { pick(event.target.files); event.target.value = ''; }} />
       <input ref={cameraRef} type="file" accept="image/*" capture="environment" hidden onChange={(event) => { pick(event.target.files); event.target.value = ''; }} />
 
-      <header className={styles.head}>
-        <div>
-          <h2 className={styles.title}>快速分享</h2>
-          <p className={styles.hint}>临时文本直接写在这里,也可以拖入文件。内容封存后只读。</p>
-        </div>
-        <span className={styles.tag}><Icon name="lock" size={13} /> 端到端加密</span>
-      </header>
-
       <textarea
         className={styles.editor}
         aria-label="临时分享文本"
-        placeholder="输入或粘贴要分享的文本…"
+        placeholder="输入文字，或拖入文件"
         value={text}
         onChange={(event) => onTextChange(event.target.value)}
         rows={4}
@@ -101,7 +93,7 @@ export function QuickShare({ busy, text, files, onTextChange, onFilesChange, onS
           ))}
         </div>
         <button type="button" className={styles.submit} disabled={busy || !canShare} onClick={() => void onShare({ files, text })}>
-          {busy ? '正在创建分享…' : '创建临时分享'}
+          {busy ? '创建中…' : '创建分享'}
         </button>
       </footer>
     </section>