diff --git a/product-source/hololake-native-desktop/src/main.tsx b/product-source/hololake-native-desktop/src/main.tsx
index 725aae611..bf9e99dd5 100644
--- a/product-source/hololake-native-desktop/src/main.tsx
+++ b/product-source/hololake-native-desktop/src/main.tsx
@@ -257,6 +257,11 @@ function HoloLakeApp() {
   const [loginBusy, setLoginBusy] = useState(false)
   const [loginRising, setLoginRising] = useState(false)
   const [loginMessage, setLoginMessage] = useState('')
+  const [gateStage, setGateStage] = useState<'number' | 'key'>('number')
+  const [gateNumber, setGateNumber] = useState('')
+  const [gateBusy, setGateBusy] = useState(false)
+  const [gateMessage, setGateMessage] = useState('')
+  const [gateRising, setGateRising] = useState(false)
   const [systemBusy, setSystemBusy] = useState(false)
   const [zeroPoint, setZeroPoint] = useState<ZeroPointSnapshot | null>(null)
   const [zpNumber, setZpNumber] = useState('')
@@ -313,6 +318,30 @@ function HoloLakeApp() {
     if (zeroPoint.route !== 'persona' && view === 'parlor') setView('generic')
     if (zeroPoint.route === 'persona' && view === 'generic') setView('knowledge')
   }, [zeroPoint, view])
+  // 大门·编号门：本机已有绑定编号时回填，省得主人重报家门
+  useEffect(() => {
+    if (gateStage === 'number' && !gateNumber && zeroPoint?.binding === 'bound' && zeroPoint.userNumber) setGateNumber(zeroPoint.userNumber)
+  }, [zeroPoint, gateStage, gateNumber])
+  // 大门·编号门：先报编号→灯塔查号→只答有效/无效→域浮起→才见钥匙门
+  const gateVerifyNumber = async () => {
+    setGateBusy(true)
+    setGateMessage('')
+    try {
+      await invoke<ZeroPointSnapshot>('zero_point_bind', { input: { number: gateNumber.trim() } })
+      const snapshot = await invoke<ZeroPointSnapshot>('zero_point_verify')
+      setZeroPoint(snapshot)
+      if (snapshot.route === 'persona') {
+        setGateRising(true)
+        window.setTimeout(() => { setGateRising(false); setGateStage('key') }, 1900)
+      } else {
+        setGateMessage('编号未获灯塔放行——灯塔只答有效或无效，不透露编号表。')
+      }
+    } catch (error) {
+      setGateMessage(humanError(error, 'login'))
+    } finally {
+      setGateBusy(false)
+    }
+  }
   useEffect(() => { if (view === 'receipts') void loadReceipts() }, [loadReceipts, view])
 
   const visibleDocuments = useMemo(() => {
@@ -877,7 +906,48 @@ function HoloLakeApp() {
 
   if (!repoLogin) {
     return <div className="app-shell">
-      <div className={`onboarding-backdrop lake-scene${loginRising ? ' sinking' : ''}`}><div className="lake-bays" aria-hidden="true">{([['main', '主域'], ['sub', '分域'], ['zero', '零域'], ['sense', '零感域'], ['fifth', '第五域']] as const).map(([bayId, bayName]) => <span key={bayId} className={`lake-bay ${bayId}${loginRising && bayId === 'fifth' ? ' rising' : ''}`}><i/><b>{bayName}</b></span>)}</div><section className={`onboarding-card${loginRising ? ' fade-out' : ''}`} role="dialog"><span className="onboarding-mark">光湖</span><span className="kicker">CODE REPOSITORY ENTRY</span><h1>登录光湖代码频道</h1><p>使用第五域代码仓库（guanghulab.com）的账号与密码登录。登录即验证了背后绑定的服务器；凭证只存本机钥匙串，不落明文。</p><form onSubmit={(event) => void performRepoLogin(event)}><label htmlFor="repo-login-username">仓库账号</label><input id="repo-login-username" autoFocus maxLength={40} value={loginUsername} placeholder="代码仓库用户名" onChange={(event) => setLoginUsername(event.target.value)}/><label htmlFor="repo-login-password">密码</label><input id="repo-login-password" type="password" maxLength={512} value={loginPassword} placeholder="代码仓库密码" onChange={(event) => setLoginPassword(event.target.value)}/><button className="primary-button" disabled={loginBusy || !loginUsername.trim() || !loginPassword}>{loginBusy ? '正在验证…' : '进入 HoloLake'}</button></form>{loginMessage && <p>{loginMessage}</p>}</section></div>
+      <div className={`onboarding-backdrop lake-scene${loginRising ? ' sinking' : ''}`}>
+        <div className="lake-bays" aria-hidden="true">{([['main', '主域'], ['sub', '分域'], ['zero', '零域'], ['sense', '零感域'], ['fifth', '第五域']] as const).map(([bayId, bayName]) => <span key={bayId} className={`lake-bay ${bayId}${(gateRising || loginRising) && bayId === 'fifth' ? ' rising' : ''}`}><i/><b>{bayName}</b></span>)}</div>
+        {gateRising ? (
+          <section className="gate-welcome" role="status">
+            <span className="gate-welcome-kicker">编号有效 · 域已浮起</span>
+            <h1>欢迎回到 第五域 · 光之湖</h1>
+            <p>编号 {gateNumber} 已通过灯塔校验——湖湾为你浮起，请交钥匙进门。</p>
+          </section>
+        ) : (
+          <section className={`onboarding-card gate-card${loginRising ? ' fade-out' : ''}`} role="dialog">
+            <span className="onboarding-mark gate-mark">光湖</span>
+            <div className="gate-steps" aria-hidden="true"><span className={gateStage === 'number' ? 'active' : 'done'}><i>壹</i>编号门</span><em/><span className={gateStage === 'key' ? 'active' : ''}><i>贰</i>钥匙门</span></div>
+            {gateStage === 'number' ? (
+              <>
+                <span className="kicker">GATE OF GUANGHU WORLD</span>
+                <h1>光湖世界大门</h1>
+                <p>先报编号。灯塔只回答"有效 / 无效"，不透露编号表在哪、有什么。编号合法，你所属的域才会浮起。</p>
+                <form onSubmit={(event) => { event.preventDefault(); void gateVerifyNumber() }}>
+                  <label htmlFor="gate-number">来者编号</label>
+                  <input id="gate-number" autoFocus maxLength={40} value={gateNumber} placeholder="如 ICE-GL∞" onChange={(event) => setGateNumber(event.target.value)}/>
+                  <button className="primary-button" disabled={gateBusy || !gateNumber.trim()}>{gateBusy ? '灯塔查号中…' : '校验编号'}</button>
+                </form>
+              </>
+            ) : (
+              <>
+                <span className="kicker">FIFTH DOMAIN · KEY GATE</span>
+                <h1>第五域 · 钥匙门</h1>
+                <p>编号 <b className="gate-number-chip">{gateNumber}</b> 已通过校验。用第五域代码仓库（guanghulab.com）的账号与密码交钥匙；凭证只存本机钥匙串，不落明文。</p>
+                <form onSubmit={(event) => void performRepoLogin(event)}>
+                  <label htmlFor="repo-login-username">仓库账号</label>
+                  <input id="repo-login-username" autoFocus maxLength={40} value={loginUsername} placeholder="代码仓库用户名" onChange={(event) => setLoginUsername(event.target.value)}/>
+                  <label htmlFor="repo-login-password">密码</label>
+                  <input id="repo-login-password" type="password" maxLength={512} value={loginPassword} placeholder="代码仓库密码" onChange={(event) => setLoginPassword(event.target.value)}/>
+                  <button className="primary-button" disabled={loginBusy || !loginUsername.trim() || !loginPassword}>{loginBusy ? '正在验证…' : '进入 HoloLake'}</button>
+                </form>
+                <button className="gate-back" type="button" onClick={() => { setGateStage('number'); setGateMessage(''); setLoginMessage('') }}>换个编号重新报门</button>
+              </>
+            )}
+            {(gateMessage || loginMessage) && <p className="gate-message">{gateMessage || loginMessage}</p>}
+          </section>
+        )}
+      </div>
     </div>
   }
 
diff --git a/product-source/hololake-native-desktop/src/styles.css b/product-source/hololake-native-desktop/src/styles.css
index 3f76c412c..e605660a0 100644
--- a/product-source/hololake-native-desktop/src/styles.css
+++ b/product-source/hololake-native-desktop/src/styles.css
@@ -436,3 +436,26 @@ svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-lineca
 @keyframes bay-rise { 0% { transform: translateY(0) scale(1); } 55% { transform: translateY(-52px) scale(1.2); } 100% { transform: translateY(-150px) scale(1.9); } }
 .onboarding-card { position: relative; z-index: 1; transition: opacity .7s ease, transform .7s ease; }
 .onboarding-card.fade-out { opacity: 0; transform: translateY(16px) scale(.985); }
+
+/* ===== 光湖世界大门（编号门→域浮起→钥匙门）===== */
+.gate-card { width: min(520px, 100%); text-align: center; }
+.gate-card form { text-align: left; }
+.gate-mark { width: 72px; height: 72px; margin: 0 auto 20px; border-radius: 22px; font-size: 22px; border-color: color-mix(in srgb, var(--primitive-warm-glow) 46%, transparent); color: var(--accent-light); box-shadow: 0 0 42px color-mix(in srgb, var(--primitive-warm-glow) 30%, transparent), inset 0 0 22px color-mix(in srgb, var(--primitive-warm-glow) 14%, transparent); animation: gate-mark-breathe 4.5s ease-in-out infinite; }
+@keyframes gate-mark-breathe { 0%, 100% { box-shadow: 0 0 30px color-mix(in srgb, var(--primitive-warm-glow) 22%, transparent), inset 0 0 18px color-mix(in srgb, var(--primitive-warm-glow) 10%, transparent); } 50% { box-shadow: 0 0 58px color-mix(in srgb, var(--primitive-warm-glow) 40%, transparent), inset 0 0 26px color-mix(in srgb, var(--primitive-warm-glow) 18%, transparent); } }
+.gate-card h1 { font-size: 30px; letter-spacing: .04em; }
+.gate-card .kicker { letter-spacing: .3em; color: color-mix(in srgb, var(--primitive-warm-glow) 78%, var(--content-muted)); }
+.gate-steps { display: flex; align-items: center; justify-content: center; gap: 12px; margin: 0 0 22px; }
+.gate-steps span { display: inline-flex; align-items: center; gap: 7px; padding: 5px 13px; border: 1px solid var(--panel-edge); border-radius: 999px; color: var(--content-faint); font-size: 12px; letter-spacing: .12em; transition: all .4s ease; }
+.gate-steps span i { display: grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; border: 1px solid currentColor; font-style: normal; font-size: 10px; }
+.gate-steps span.active { color: var(--accent-light); border-color: color-mix(in srgb, var(--primitive-warm-glow) 52%, transparent); background: color-mix(in srgb, var(--primitive-warm-glow) 9%, transparent); box-shadow: 0 0 18px color-mix(in srgb, var(--primitive-warm-glow) 18%, transparent); }
+.gate-steps span.done { color: var(--content-secondary); border-color: color-mix(in srgb, var(--accent-light) 34%, transparent); }
+.gate-steps em { width: 34px; height: 1px; background: linear-gradient(90deg, var(--panel-edge), color-mix(in srgb, var(--primitive-warm-glow) 42%, transparent)); }
+.gate-number-chip { padding: 1px 8px; border: 1px solid color-mix(in srgb, var(--primitive-warm-glow) 44%, transparent); border-radius: 7px; color: var(--accent-light); font-weight: 600; letter-spacing: .03em; }
+.gate-back { margin-top: 16px; border: 0; background: none; color: var(--content-faint); font-size: 12.5px; letter-spacing: .08em; cursor: pointer; transition: color .25s ease; }
+.gate-back:hover { color: var(--accent-light); }
+.gate-message { margin-top: 14px; color: var(--content-muted); font-size: 13px; }
+.gate-welcome { position: relative; z-index: 2; text-align: center; animation: gate-welcome-in 1s cubic-bezier(.3, .7, .35, 1) both; }
+.gate-welcome-kicker { display: inline-block; padding: 6px 16px; border: 1px solid color-mix(in srgb, var(--primitive-warm-glow) 40%, transparent); border-radius: 999px; color: var(--accent-light); font-size: 12px; letter-spacing: .26em; text-indent: .26em; background: color-mix(in srgb, var(--primitive-warm-glow) 8%, transparent); }
+.gate-welcome h1 { margin: 20px 0 12px; color: var(--content-primary); font-size: clamp(30px, 4.6vw, 44px); font-weight: 650; letter-spacing: .06em; text-shadow: 0 0 46px color-mix(in srgb, var(--primitive-warm-glow) 34%, transparent); }
+.gate-welcome p { color: var(--content-muted); font-size: 14.5px; line-height: 1.7; }
+@keyframes gate-welcome-in { 0% { opacity: 0; transform: translateY(26px) scale(.97); } 100% { opacity: 1; transform: translateY(0) scale(1); } }