diff --git a/package.json b/package.json
index cffcc04..5b366b8 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,6 @@
     "crypto-js": "^4.2.0",
     "dayjs": "^1.11.20",
     "i18next": "^25.8.14",
-    "json-rules-engine": "^7.3.1",
     "pinyin-pro": "^3.27.0",
     "react": "^19.2.1",
     "react-dom": "^19.2.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 8c9a7e3..5bb70a8 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -35,9 +35,6 @@ importers:
       i18next:
         specifier: ^25.8.14
         version: 25.8.18(typescript@5.9.3)
-      json-rules-engine:
-        specifier: ^7.3.1
-        version: 7.3.1
       pinyin-pro:
         specifier: ^3.27.0
         version: 3.28.0
@@ -462,18 +459,6 @@ packages:
   '@jridgewell/trace-mapping@0.3.31':
     resolution: {integrity: sha512-zzNR+SdQSDJzc8joaeP8QQoCQr8NuYx2dIIytl1QeBEZHJ9uW6hebsrYgbz8hJwUQao3TWCMtmfV8Nu1twOLAw==}
 
-  '@jsep-plugin/assignment@1.3.0':
-    resolution: {integrity: sha512-VVgV+CXrhbMI3aSusQyclHkenWSAm95WaiKrMxRFam3JSUiIaQjoMIw2sEs/OX4XifnqeQUN4DYbJjlA8EfktQ==}
-    engines: {node: '>= 10.16.0'}
-    peerDependencies:
-      jsep: ^0.4.0||^1.0.0
-
-  '@jsep-plugin/regex@1.0.4':
-    resolution: {integrity: sha512-q7qL4Mgjs1vByCaTnDFcBnV9HS7GVPJX5vyVoCgZHNSC9rjwIlmbXG5sUuorR5ndfHAIlJ8pVStxvjXHbNvtUg==}
-    engines: {node: '>= 10.16.0'}
-    peerDependencies:
-      jsep: ^0.4.0||^1.0.0
-
   '@rc-component/async-validator@5.1.0':
     resolution: {integrity: sha512-n4HcR5siNUXRX23nDizbZBQPO0ZM/5oTtmKZ6/eqL0L2bo747cklFdZGRN2f+c9qWGICwDzrhW0H7tE9PptdcA==}
     engines: {node: '>=14.x'}
@@ -854,66 +839,79 @@ packages:
     resolution: {integrity: sha512-t4ONHboXi/3E0rT6OZl1pKbl2Vgxf9vJfWgmUoCEVQVxhW6Cw/c8I6hbbu7DAvgp82RKiH7TpLwxnJeKv2pbsw==}
     cpu: [arm]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-arm-musleabihf@4.59.0':
     resolution: {integrity: sha512-CikFT7aYPA2ufMD086cVORBYGHffBo4K8MQ4uPS/ZnY54GKj36i196u8U+aDVT2LX4eSMbyHtyOh7D7Zvk2VvA==}
     cpu: [arm]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-arm64-gnu@4.59.0':
     resolution: {integrity: sha512-jYgUGk5aLd1nUb1CtQ8E+t5JhLc9x5WdBKew9ZgAXg7DBk0ZHErLHdXM24rfX+bKrFe+Xp5YuJo54I5HFjGDAA==}
     cpu: [arm64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-arm64-musl@4.59.0':
     resolution: {integrity: sha512-peZRVEdnFWZ5Bh2KeumKG9ty7aCXzzEsHShOZEFiCQlDEepP1dpUl/SrUNXNg13UmZl+gzVDPsiCwnV1uI0RUA==}
     cpu: [arm64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-loong64-gnu@4.59.0':
     resolution: {integrity: sha512-gbUSW/97f7+r4gHy3Jlup8zDG190AuodsWnNiXErp9mT90iCy9NKKU0Xwx5k8VlRAIV2uU9CsMnEFg/xXaOfXg==}
     cpu: [loong64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-loong64-musl@4.59.0':
     resolution: {integrity: sha512-yTRONe79E+o0FWFijasoTjtzG9EBedFXJMl888NBEDCDV9I2wGbFFfJQQe63OijbFCUZqxpHz1GzpbtSFikJ4Q==}
     cpu: [loong64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-ppc64-gnu@4.59.0':
     resolution: {integrity: sha512-sw1o3tfyk12k3OEpRddF68a1unZ5VCN7zoTNtSn2KndUE+ea3m3ROOKRCZxEpmT9nsGnogpFP9x6mnLTCaoLkA==}
     cpu: [ppc64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-ppc64-musl@4.59.0':
     resolution: {integrity: sha512-+2kLtQ4xT3AiIxkzFVFXfsmlZiG5FXYW7ZyIIvGA7Bdeuh9Z0aN4hVyXS/G1E9bTP/vqszNIN/pUKCk/BTHsKA==}
     cpu: [ppc64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-riscv64-gnu@4.59.0':
     resolution: {integrity: sha512-NDYMpsXYJJaj+I7UdwIuHHNxXZ/b/N2hR15NyH3m2qAtb/hHPA4g4SuuvrdxetTdndfj9b1WOmy73kcPRoERUg==}
     cpu: [riscv64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-riscv64-musl@4.59.0':
     resolution: {integrity: sha512-nLckB8WOqHIf1bhymk+oHxvM9D3tyPndZH8i8+35p/1YiVoVswPid2yLzgX7ZJP0KQvnkhM4H6QZ5m0LzbyIAg==}
     cpu: [riscv64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-s390x-gnu@4.59.0':
     resolution: {integrity: sha512-oF87Ie3uAIvORFBpwnCvUzdeYUqi2wY6jRFWJAy1qus/udHFYIkplYRW+wo+GRUP4sKzYdmE1Y3+rY5Gc4ZO+w==}
     cpu: [s390x]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-x64-gnu@4.59.0':
     resolution: {integrity: sha512-3AHmtQq/ppNuUspKAlvA8HtLybkDflkMuLK4DPo77DfthRb71V84/c4MlWJXixZz4uruIH4uaa07IqoAkG64fg==}
     cpu: [x64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-x64-musl@4.59.0':
     resolution: {integrity: sha512-2UdiwS/9cTAx7qIUZB/fWtToJwvt0Vbo0zmnYt7ED35KPg13Q0ym1g442THLC7VyI6JfYTP4PiSOWyoMdV2/xg==}
     cpu: [x64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-openbsd-x64@4.59.0':
     resolution: {integrity: sha512-M3bLRAVk6GOwFlPTIxVBSYKUaqfLrn8l0psKinkCFxl4lQvOSz8ZrKDz2gxcBwHFpci0B6rttydI4IpS4IS/jQ==}
@@ -977,30 +975,35 @@ packages:
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
+    libc: [glibc]
 
   '@tauri-apps/cli-linux-arm64-musl@2.10.1':
     resolution: {integrity: sha512-MIj78PDDGjkg3NqGptDOGgfXks7SYJwhiMh8SBoZS+vfdz7yP5jN18bNaLnDhsVIPARcAhE1TlsZe/8Yxo2zqg==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
+    libc: [musl]
 
   '@tauri-apps/cli-linux-riscv64-gnu@2.10.1':
     resolution: {integrity: sha512-X0lvOVUg8PCVaoEtEAnpxmnkwlE1gcMDTqfhbefICKDnOTJ5Est3qL0SrWxizDackIOKBcvtpejrSiVpuJI1kw==}
     engines: {node: '>= 10'}
     cpu: [riscv64]
     os: [linux]
+    libc: [glibc]
 
   '@tauri-apps/cli-linux-x64-gnu@2.10.1':
     resolution: {integrity: sha512-2/12bEzsJS9fAKybxgicCDFxYD1WEI9kO+tlDwX5znWG2GwMBaiWcmhGlZ8fi+DMe9CXlcVarMTYc0L3REIRxw==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
+    libc: [glibc]
 
   '@tauri-apps/cli-linux-x64-musl@2.10.1':
     resolution: {integrity: sha512-Y8J0ZzswPz50UcGOFuXGEMrxbjwKSPgXftx5qnkuMs2rmwQB5ssvLb6tn54wDSYxe7S6vlLob9vt0VKuNOaCIQ==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
+    libc: [musl]
 
   '@tauri-apps/cli-win32-arm64-msvc@2.10.1':
     resolution: {integrity: sha512-iSt5B86jHYAPJa/IlYw++SXtFPGnWtFJriHn7X0NFBVunF6zu9+/zOn8OgqIWSl8RgzhLGXQEEtGBdR4wzpVgg==}
@@ -1477,9 +1480,6 @@ packages:
     resolution: {integrity: sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==}
     engines: {node: '>=0.10.0'}
 
-  eventemitter2@6.4.9:
-    resolution: {integrity: sha512-JEPTiaOt9f04oa6NOkc4aH+nVp5I3wEjpHbIPqfgCdD5v5bUzy7xQqwcVO2aDQgOWhI28da57HksMrzK9HlRxg==}
-
   fast-deep-equal@3.1.3:
     resolution: {integrity: sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==}
 
@@ -1595,9 +1595,6 @@ packages:
     resolution: {integrity: sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==}
     engines: {node: '>= 0.4'}
 
-  hash-it@6.0.1:
-    resolution: {integrity: sha512-qhl8+l4Zwi1eLlL3lja5ywmDQnBzLEJxd0QJoAVIgZpgQbdtVZrN5ypB0y3VHwBlvAalpcbM2/A6x7oUks5zNg==}
-
   hasown@2.0.2:
     resolution: {integrity: sha512-0hJU9SCPvmMzIBdZFqNPXWa6dqh7WdH0cII9y+CyS8rG3nL48Bclra9HmKhVVUHyPWNH5Y7xDwAB7bfgSjkUMQ==}
     engines: {node: '>= 0.4'}
@@ -1767,10 +1764,6 @@ packages:
     resolution: {integrity: sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==}
     hasBin: true
 
-  jsep@1.4.0:
-    resolution: {integrity: sha512-B7qPcEVE3NVkmSJbaYxvv4cHkVW7DQsZz13pUMrfS8z8Q/BuShN+gcTXrUlPiGqM2/t/EEaI030bpxMqY8gMlw==}
-    engines: {node: '>= 10.16.0'}
-
   jsesc@3.1.0:
     resolution: {integrity: sha512-/sM3dO2FOzXjKQhJuo0Q173wf2KOo8t4I8vHy6lF9poUp7bKT0/NHE8fPX23PwfhnykfqnC2xRxOnVw5XuGIaA==}
     engines: {node: '>=6'}
@@ -1785,10 +1778,6 @@ packages:
   json-logic-js@2.0.5:
     resolution: {integrity: sha512-rTT2+lqcuUmj4DgWfmzupZqQDA64AdmYqizzMPWj3DxGdfFNsxPpcNVSaTj4l8W2tG/+hg7/mQhxjU3aPacO6g==}
 
-  json-rules-engine@7.3.1:
-    resolution: {integrity: sha512-NyRTQZllvAt7AQ3g9P7/t4nIwlEB+EyZV7y8/WgXfZWSlpcDryt1UH9CsoU+Z+MDvj8umN9qqEcbE6qnk9JAHw==}
-    engines: {node: '>=18.0.0'}
-
   json-schema-traverse@0.4.1:
     resolution: {integrity: sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==}
 
@@ -1803,11 +1792,6 @@ packages:
     engines: {node: '>=6'}
     hasBin: true
 
-  jsonpath-plus@10.4.0:
-    resolution: {integrity: sha512-T92WWatJXmhBbKsgH/0hl+jxjdXrifi5IKeMY02DWggRxX0UElcbVzPlmgLTbvsPeW1PasQ6xE2Q75stkhGbsA==}
-    engines: {node: '>=18.0.0'}
-    hasBin: true
-
   jsx-ast-utils@3.3.5:
     resolution: {integrity: sha512-ZZow9HBI5O6EPgSJLUb8n2NKgmVWTwCvHGwFuJlMjvLFqlGG6pjirPhtdsseaLZjSibD8eegzmYpUZwoIlj2cQ==}
     engines: {node: '>=4.0'}
@@ -2745,14 +2729,6 @@ snapshots:
       '@jridgewell/resolve-uri': 3.1.2
       '@jridgewell/sourcemap-codec': 1.5.5
 
-  '@jsep-plugin/assignment@1.3.0(jsep@1.4.0)':
-    dependencies:
-      jsep: 1.4.0
-
-  '@jsep-plugin/regex@1.0.4(jsep@1.4.0)':
-    dependencies:
-      jsep: 1.4.0
-
   '@rc-component/async-validator@5.1.0':
     dependencies:
       '@babel/runtime': 7.28.6
@@ -4017,8 +3993,6 @@ snapshots:
 
   esutils@2.0.3: {}
 
-  eventemitter2@6.4.9: {}
-
   fast-deep-equal@3.1.3: {}
 
   fast-json-stable-stringify@2.1.0: {}
@@ -4126,8 +4100,6 @@ snapshots:
     dependencies:
       has-symbols: 1.1.0
 
-  hash-it@6.0.1: {}
-
   hasown@2.0.2:
     dependencies:
       function-bind: 1.1.2
@@ -4304,8 +4276,6 @@ snapshots:
     dependencies:
       argparse: 2.0.1
 
-  jsep@1.4.0: {}
-
   jsesc@3.1.0: {}
 
   json-bigint@1.0.0:
@@ -4316,13 +4286,6 @@ snapshots:
 
   json-logic-js@2.0.5: {}
 
-  json-rules-engine@7.3.1:
-    dependencies:
-      clone: 2.1.2
-      eventemitter2: 6.4.9
-      hash-it: 6.0.1
-      jsonpath-plus: 10.4.0
-
   json-schema-traverse@0.4.1: {}
 
   json-stable-stringify-without-jsonify@1.0.1: {}
@@ -4333,12 +4296,6 @@ snapshots:
 
   json5@2.2.3: {}
 
-  jsonpath-plus@10.4.0:
-    dependencies:
-      '@jsep-plugin/assignment': 1.3.0(jsep@1.4.0)
-      '@jsep-plugin/regex': 1.0.4(jsep@1.4.0)
-      jsep: 1.4.0
-
   jsx-ast-utils@3.3.5:
     dependencies:
       array-includes: 3.1.9
diff --git a/src/App.tsx b/src/App.tsx
index 73d911c..8f64d5c 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -24,7 +24,7 @@ import {
   HolderOutlined,
   CrownOutlined,
 } from "@ant-design/icons"
-import { useEffect, useMemo, useRef, useState } from "react"
+import { useCallback, useEffect, useMemo, useRef, useState } from "react"
 import { HashRouter, useLocation, useNavigate, Routes, Route } from "react-router-dom"
 import { useTranslation } from "react-i18next"
 import { Sidebar } from "./components/Sidebar"
@@ -48,6 +48,14 @@ const applyGlobalFontFamily = (fontValue?: string) => {
   document.body.style.fontFamily = fontFamily
 }
 
+const mapOAuthPermissionToAppPermission = (
+  oauthPermission: number
+): "admin" | "points" | "view" => {
+  if (oauthPermission >= 18) return "admin"
+  if (oauthPermission >= 1) return "points"
+  return "view"
+}
+
 function MainContent(): React.JSX.Element {
   const { t } = useTranslation()
   const navigate = useNavigate()
@@ -107,6 +115,7 @@ function MainContent(): React.JSX.Element {
   const [authPassword, setAuthPassword] = useState("")
   const [authLoading, setAuthLoading] = useState(false)
   const [oauthVisible, setOAuthVisible] = useState(false)
+  const [oauthUserName, setOAuthUserName] = useState<string | null>(null)
   const [mobileBottomNavItems, setMobileBottomNavItems] = useState<MobileNavKey[]>(
     DEFAULT_MOBILE_BOTTOM_NAV_ITEMS
   )
@@ -132,6 +141,18 @@ function MainContent(): React.JSX.Element {
   const syncApplyLoadingRef = useRef(false)
   const lastLocalMutationAtRef = useRef(0)
   const pluginRuntimeRef = useRef(getPluginRuntime())
+  const refreshPermissionFromAuth = useCallback(async () => {
+    const api = (window as any).api
+    if (!api) return
+
+    const authRes = await api.authGetStatus()
+    if (authRes?.success && authRes.data) {
+      const anyPwd = Boolean(authRes.data.hasAdminPassword || authRes.data.hasPointsPassword)
+      setHasAnyPassword(anyPwd)
+      setPermission(authRes.data.permission)
+      setAuthVisible(anyPwd && authRes.data.permission === "view")
+    }
+  }, [])
 
   const activeMenu = useMemo(() => {
     const p = location.pathname
@@ -188,15 +209,37 @@ function MainContent(): React.JSX.Element {
 
   useEffect(() => {
     const loadAuthAndSettings = async () => {
-      if (!(window as any).api) return
-      const authRes = await (window as any).api.authGetStatus()
+      const api = (window as any).api
+      if (!api) return
+
+      const [authRes, oauthRes, settingsRes] = await Promise.all([
+        api.authGetStatus(),
+        api.oauthLoadLoginState(),
+        api.getAllSettings(),
+      ])
+
+      const oauthPermission =
+        oauthRes?.success && oauthRes.data
+          ? mapOAuthPermissionToAppPermission(oauthRes.data.permission)
+          : null
+      if (oauthRes?.success && oauthRes.data?.name) {
+        setOAuthUserName(String(oauthRes.data.name))
+      } else {
+        setOAuthUserName(null)
+      }
+
       if (authRes?.success && authRes.data) {
-        setPermission(authRes.data.permission)
         const anyPwd = Boolean(authRes.data.hasAdminPassword || authRes.data.hasPointsPassword)
         setHasAnyPassword(anyPwd)
-        if (anyPwd && authRes.data.permission === "view") setAuthVisible(true)
+
+        const finalPermission = oauthPermission ?? authRes.data.permission
+        setPermission(finalPermission)
+        setAuthVisible(anyPwd && finalPermission === "view")
+      } else if (oauthPermission) {
+        setPermission(oauthPermission)
+        setAuthVisible(false)
       }
-      const settingsRes = await (window as any).api.getAllSettings()
+
       if (settingsRes?.success && settingsRes.data) {
         setMobileBottomNavItems(normalizeStoredBottomKeys(settingsRes.data.mobile_bottom_nav_items))
         applyGlobalFontFamily(settingsRes.data.font_family)
@@ -206,6 +249,31 @@ function MainContent(): React.JSX.Element {
     loadAuthAndSettings()
   }, [])
 
+  useEffect(() => {
+    const handleOAuthUserUpdated = (
+      event: Event
+    ) => {
+      const customEvent = event as CustomEvent<{
+        user?: { name?: string } | null
+      }>
+      const userName = customEvent?.detail?.user?.name
+      if (typeof userName === "string" && userName.trim()) {
+        setOAuthUserName(userName)
+      } else {
+        setOAuthUserName(null)
+        void refreshPermissionFromAuth()
+      }
+    }
+
+    window.addEventListener("ss:oauth-user-updated", handleOAuthUserUpdated as EventListener)
+    return () => {
+      window.removeEventListener(
+        "ss:oauth-user-updated",
+        handleOAuthUserUpdated as EventListener
+      )
+    }
+  }, [refreshPermissionFromAuth])
+
   useEffect(() => {
     const api = (window as any).api
     if (!api || typeof api.onSettingChanged !== "function") return
@@ -425,14 +493,40 @@ function MainContent(): React.JSX.Element {
   }
 
   const logout = async () => {
-    if (!(window as any).api) return
-    const res = await (window as any).api.authLogout()
+    const api = (window as any).api
+    if (!api) return
+
+    // 退出时同时清理 OAuth 持久化状态，避免刷新后又自动恢复权限
+    try {
+      await api.oauthClearLoginState()
+      setOAuthUserName(null)
+      window.dispatchEvent(new CustomEvent("ss:oauth-user-updated", { detail: { user: null } }))
+    } catch (error) {
+      console.error("Failed to clear OAuth login state:", error)
+    }
+
+    const res = await api.authLogout()
     if (res?.success && res.data) {
       setPermission(res.data.permission)
       messageApi.success(t("auth.logout"))
     }
   }
 
+  const logoutOAuthFromHeader = useCallback(async () => {
+    const api = (window as any).api
+    if (!api) return
+
+    try {
+      await api.oauthClearLoginState()
+      setOAuthUserName(null)
+      window.dispatchEvent(new CustomEvent("ss:oauth-user-updated", { detail: { user: null } }))
+      await refreshPermissionFromAuth()
+      messageApi.success("已退出云账号")
+    } catch (error: any) {
+      messageApi.error(error?.message || t("common.error"))
+    }
+  }, [messageApi, refreshPermissionFromAuth, t])
+
   const handleOAuthSuccess = (userInfo: {
     user_id: string
     email: string
@@ -440,14 +534,9 @@ function MainContent(): React.JSX.Element {
     github_username?: string
     permission: number
   }) => {
-    let newPermission: "admin" | "points" | "view" = "view"
-    if (userInfo.permission >= 18) {
-      newPermission = "admin"
-    } else if (userInfo.permission >= 1) {
-      newPermission = "points"
-    }
-
-    setPermission(newPermission)
+    setPermission(mapOAuthPermissionToAppPermission(userInfo.permission))
+    setAuthVisible(false)
+    setOAuthUserName(userInfo.name || null)
     messageApi.success(t("auth.oauthSuccess", "登录成功"))
   }
 
@@ -643,6 +732,8 @@ function MainContent(): React.JSX.Element {
         )}
         <ContentArea
           permission={permission}
+          oauthUserName={oauthUserName}
+          onOAuthLogout={logoutOAuthFromHeader}
           hasAnyPassword={hasAnyPassword}
           onAuthClick={() => setAuthVisible(true)}
           onLogout={logout}
@@ -984,7 +1075,7 @@ function MainContent(): React.JSX.Element {
           footer={null}
           closable={!syncApplyLoading}
           maskClosable={false}
-          destroyOnClose
+          destroyOnHidden
         >
           <div
             style={{ marginBottom: "10px", color: "var(--ss-text-secondary)", fontSize: "12px" }}
diff --git a/src/assets/main.css b/src/assets/main.css
index ac0acb0..fba91c1 100644
--- a/src/assets/main.css
+++ b/src/assets/main.css
@@ -229,6 +229,80 @@ html.platform-macos #root {
   overflow: hidden;
 }
 
+.ss-reward-morph-modal {
+  --ss-modal-from-x: 0px;
+  --ss-modal-from-y: 0px;
+  --ss-modal-scale-x: 1;
+  --ss-modal-scale-y: 1;
+}
+
+.ss-reward-morph-modal.is-preparing {
+  opacity: 0;
+}
+
+.ss-reward-morph-modal .ant-modal-content {
+  transform-origin: center;
+  will-change: transform, opacity;
+}
+
+.ss-reward-morph-wrap.ss-reward-noop-motion-enter,
+.ss-reward-morph-wrap.ss-reward-noop-motion-appear,
+.ss-reward-morph-wrap.ss-reward-noop-motion-leave,
+.ss-reward-morph-wrap.ss-reward-noop-motion-enter-active,
+.ss-reward-morph-wrap.ss-reward-noop-motion-appear-active,
+.ss-reward-morph-wrap.ss-reward-noop-motion-leave-active,
+.ss-reward-morph-root .ss-reward-morph-modal.ss-reward-noop-motion-enter,
+.ss-reward-morph-root .ss-reward-morph-modal.ss-reward-noop-motion-appear,
+.ss-reward-morph-root .ss-reward-morph-modal.ss-reward-noop-motion-leave,
+.ss-reward-morph-root .ss-reward-morph-modal.ss-reward-noop-motion-enter-active,
+.ss-reward-morph-root .ss-reward-morph-modal.ss-reward-noop-motion-appear-active,
+.ss-reward-morph-root .ss-reward-morph-modal.ss-reward-noop-motion-leave-active {
+  animation: none !important;
+  transition: none !important;
+}
+
+.ss-reward-morph-modal.is-enter .ant-modal-content {
+  animation: ss-reward-modal-morph-in 300ms cubic-bezier(0.2, 0.82, 0.22, 1) both;
+}
+
+.ss-home-operation-morph-modal .ant-modal-content {
+  transform-origin: center;
+  will-change: transform, opacity;
+}
+
+.ss-operation-mask-fade-enter,
+.ss-operation-mask-fade-appear {
+  opacity: 0 !important;
+}
+
+.ss-operation-mask-fade-enter-active,
+.ss-operation-mask-fade-appear-active {
+  opacity: 1 !important;
+  transition: opacity 260ms cubic-bezier(0.2, 0, 0, 1) !important;
+}
+
+.ss-operation-mask-fade-leave {
+  opacity: 1 !important;
+}
+
+.ss-operation-mask-fade-leave-active {
+  opacity: 0 !important;
+  transition: opacity 220ms cubic-bezier(0.4, 0, 1, 1) !important;
+}
+
+@keyframes ss-reward-modal-morph-in {
+  from {
+    transform: translate3d(var(--ss-modal-from-x), var(--ss-modal-from-y), 0)
+      scale(var(--ss-modal-scale-x), var(--ss-modal-scale-y));
+    opacity: 0.94;
+  }
+
+  to {
+    transform: translate3d(0, 0, 0) scale(1, 1);
+    opacity: 1;
+  }
+}
+
 .ss-immersive-sidebar {
   --ss-sidebar-width: 200px;
   height: 100%;
diff --git a/src/components/BoardManager.tsx b/src/components/BoardManager.tsx
index 806599a..2b8b021 100644
--- a/src/components/BoardManager.tsx
+++ b/src/components/BoardManager.tsx
@@ -18,7 +18,7 @@ import {
 import { DeleteOutlined, EditOutlined, PlusOutlined, ReloadOutlined } from "@ant-design/icons"
 import { useTranslation } from "react-i18next"
 
-type BoardStudentViewMode = "list" | "card" | "grid"
+type BoardStudentViewMode = "list" | "card" | "grid" | "largeAvatar"
 type BoardScoreDisplayMode = "total" | "split"
 type SplitDirection = "horizontal" | "vertical"
 
@@ -68,6 +68,7 @@ interface BoardManagerProps {
 interface BoardStudentCardData {
   key: string
   name: string
+  avatarUrl?: string
   score?: number
   addScore?: number
   deductScore?: number
@@ -221,7 +222,10 @@ const normalizeBoards = (input: unknown): BoardConfig[] => {
                 typeof list?.name === "string" && list.name.trim() ? list.name.trim() : "学生列表",
               sql: typeof list?.sql === "string" && list.sql.trim() ? list.sql : getDefaultSql(),
               viewMode:
-                list?.viewMode === "list" || list?.viewMode === "card" || list?.viewMode === "grid"
+                list?.viewMode === "list" ||
+                list?.viewMode === "card" ||
+                list?.viewMode === "grid" ||
+                list?.viewMode === "largeAvatar"
                   ? list.viewMode
                   : "card",
               scoreDisplayMode:
@@ -347,6 +351,11 @@ const toStudentCards = (rows: any[]): BoardStudentCardData[] => {
     cards.push({
       key: `${name}-${index}`,
       name,
+      avatarUrl:
+        typeof (data.avatar_url ?? data.avatarUrl ?? data.avatar) === "string" &&
+        String(data.avatar_url ?? data.avatarUrl ?? data.avatar).trim()
+          ? String(data.avatar_url ?? data.avatarUrl ?? data.avatar).trim()
+          : undefined,
       score: parseNumber(data.score),
       addScore,
       deductScore,
@@ -851,6 +860,8 @@ ORDER BY reward_points DESC, score DESC`,
           gridTemplateColumns:
             list.viewMode === "grid"
               ? "repeat(auto-fill, minmax(102px, 1fr))"
+              : list.viewMode === "largeAvatar"
+                ? "repeat(auto-fill, minmax(180px, 1fr))"
               : list.viewMode === "list"
                 ? "1fr"
                 : "repeat(auto-fill, minmax(220px, 1fr))",
@@ -897,11 +908,22 @@ ORDER BY reward_points DESC, score DESC`,
                     : item.answeredCount !== undefined
                       ? { label: t("board.metrics.todayAnswered"), value: item.answeredCount }
                       : null
+          const metricValueText = primaryMetric
+            ? primaryMetric.value > 0
+              ? `+${primaryMetric.value}`
+              : String(primaryMetric.value)
+            : null
 
           return (
             <div
               key={item.key}
-              style={{ ...(list.viewMode === "grid" ? { aspectRatio: "1 / 1" } : null) }}
+              style={{
+                ...(list.viewMode === "grid"
+                  ? { aspectRatio: "1 / 1" }
+                  : list.viewMode === "largeAvatar"
+                    ? { aspectRatio: "1.2 / 1" }
+                    : null),
+              }}
             >
               <Card
                 style={{
@@ -917,10 +939,15 @@ ORDER BY reward_points DESC, score DESC`,
                     padding:
                       list.viewMode === "grid"
                         ? "8px"
+                        : list.viewMode === "largeAvatar"
+                          ? 0
                         : list.viewMode === "list"
                           ? "10px 12px"
                           : "12px 14px",
-                    height: list.viewMode === "grid" ? "100%" : undefined,
+                    height:
+                      list.viewMode === "grid" || list.viewMode === "largeAvatar"
+                        ? "100%"
+                        : undefined,
                   },
                 }}
               >
@@ -1006,6 +1033,96 @@ ORDER BY reward_points DESC, score DESC`,
                       )}
                     </div>
                   </div>
+                ) : list.viewMode === "largeAvatar" ? (
+                  <div style={{ position: "relative", width: "100%", height: "100%" }}>
+                    {item.avatarUrl ? (
+                      <img
+                        src={item.avatarUrl}
+                        alt={item.name}
+                        style={{ width: "100%", height: "100%", objectFit: "cover" }}
+                      />
+                    ) : (
+                      <div
+                        style={{
+                          width: "100%",
+                          height: "100%",
+                          background: `linear-gradient(140deg, ${avatarColor} 0%, ${avatarColor}aa 100%)`,
+                          display: "flex",
+                          alignItems: "center",
+                          justifyContent: "center",
+                          color: "rgba(255,255,255,0.95)",
+                          fontWeight: 700,
+                          fontSize: avatarText.length > 1 ? "46px" : "56px",
+                          letterSpacing: "0.02em",
+                        }}
+                      >
+                        {avatarText}
+                      </div>
+                    )}
+
+                    <div
+                      style={{
+                        position: "absolute",
+                        inset: 0,
+                        background:
+                          "linear-gradient(180deg, rgba(255,255,255,0) 56%, rgba(255,255,255,0.72) 84%, rgba(255,255,255,0.95) 100%)",
+                        pointerEvents: "none",
+                      }}
+                    />
+
+                    <div
+                      style={{
+                        position: "absolute",
+                        left: 8,
+                        right: 8,
+                        bottom: 8,
+                        display: "flex",
+                        alignItems: "center",
+                        justifyContent: "space-between",
+                        gap: 8,
+                      }}
+                    >
+                      <div
+                        style={{
+                          maxWidth: "65%",
+                          fontWeight: 700,
+                          fontSize: 22,
+                          lineHeight: 1,
+                          color: "#111",
+                          whiteSpace: "nowrap",
+                          overflow: "hidden",
+                          textOverflow: "ellipsis",
+                          background: "rgba(255,255,255,0.62)",
+                          border: "1px solid rgba(255,255,255,0.82)",
+                          borderRadius: 8,
+                          padding: "3px 9px",
+                          backdropFilter: "blur(4px)",
+                        }}
+                      >
+                        {item.name}
+                      </div>
+                      {metricValueText !== null && (
+                        <div
+                          style={{
+                            fontWeight: 800,
+                            fontSize: 28,
+                            lineHeight: 1,
+                            color:
+                              primaryMetric && primaryMetric.value >= 0
+                                ? "#52c41a"
+                                : "#ff4d4f",
+                            background: "rgba(255,255,255,0.62)",
+                            border: "1px solid rgba(255,255,255,0.82)",
+                            borderRadius: 8,
+                            padding: "2px 9px",
+                            backdropFilter: "blur(4px)",
+                          }}
+                        >
+                          {metricValueText}
+                        </div>
+                      )}
+                    </div>
+                  </div>
                 ) : (
                   <div style={{ display: "flex", alignItems: "center", gap: 10 }}>
                     <div
@@ -1407,6 +1524,7 @@ ORDER BY reward_points DESC, score DESC`,
                   { value: "list", label: t("board.viewModes.list") },
                   { value: "card", label: t("board.viewModes.card") },
                   { value: "grid", label: t("board.viewModes.grid") },
+                  { value: "largeAvatar", label: t("board.viewModes.largeAvatar") },
                 ]}
                 disabled={!canManage}
               />
diff --git a/src/components/ContentArea.tsx b/src/components/ContentArea.tsx
index 15ead2e..156326e 100644
--- a/src/components/ContentArea.tsx
+++ b/src/components/ContentArea.tsx
@@ -1,5 +1,5 @@
-import React, { Suspense, lazy, useEffect } from "react"
-import { Layout, Space, Button, Tag, Spin } from "antd"
+import React, { Suspense, lazy, useCallback, useEffect, useRef, useState } from "react"
+import { Layout, Space, Button, Tag, Spin, Avatar, Popover, Progress } from "antd"
 import {
   MenuFoldOutlined,
   MenuUnfoldOutlined,
@@ -57,6 +57,8 @@ const { Content } = Layout
 
 interface ContentAreaProps {
   permission: "admin" | "points" | "view"
+  oauthUserName?: string | null
+  onOAuthLogout?: () => Promise<void> | void
   hasAnyPassword: boolean
   onAuthClick: () => void
   onLogout: () => void
@@ -74,8 +76,17 @@ interface ContentAreaProps {
   bottomInset?: number
 }
 
+interface HeaderStorageUsage {
+  used_storage_formatted: string
+  total_storage_formatted: string
+  percentage: number
+  file_count: number
+}
+
 export function ContentArea({
   permission,
+  oauthUserName,
+  onOAuthLogout,
   hasAnyPassword,
   onAuthClick,
   onLogout,
@@ -156,8 +167,249 @@ export function ContentArea({
         : permission === "points"
           ? t("permissions.points")
           : t("permissions.view")}
-    </Tag>
+      </Tag>
   )
+  const fallbackDisplayName =
+    permission === "admin"
+      ? t("permissions.admin")
+      : permission === "points"
+        ? t("permissions.points")
+        : t("permissions.view")
+  const userDisplayName = (oauthUserName || fallbackDisplayName).trim()
+  const avatarText = userDisplayName.slice(0, 1).toUpperCase()
+  const [profilePopoverOpen, setProfilePopoverOpen] = useState(false)
+  const [storageUsageLoading, setStorageUsageLoading] = useState(false)
+  const [storageUsageError, setStorageUsageError] = useState<string | null>(null)
+  const [storageUsage, setStorageUsage] = useState<HeaderStorageUsage | null>(null)
+  const [oauthUserId, setOAuthUserId] = useState<string | null>(null)
+  const [lastSyncTime, setLastSyncTime] = useState<string | null>(() => {
+    try {
+      return localStorage.getItem("ss_last_sync_time")
+    } catch {
+      return null
+    }
+  })
+  const [copiedUserId, setCopiedUserId] = useState(false)
+  const [logoutLoading, setLogoutLoading] = useState(false)
+  const copyResetTimerRef = useRef<number | null>(null)
+  const hasOAuthSession = Boolean(oauthUserName && oauthUserName.trim())
+  const formattedLastSyncTime = (() => {
+    if (!lastSyncTime) return "暂无"
+    const date = new Date(lastSyncTime)
+    if (Number.isNaN(date.getTime())) return "暂无"
+    return date.toLocaleString("zh-CN", { hour12: false })
+  })()
+
+  const loadStorageUsage = useCallback(async () => {
+    setStorageUsageLoading(true)
+    setStorageUsageError(null)
+
+    try {
+      const api = (window as any).api
+      if (!api?.oauthLoadLoginState) {
+        setStorageUsage(null)
+        setStorageUsageError("当前环境不支持云用量查询")
+        return
+      }
+
+      const oauthStateRes = await api.oauthLoadLoginState()
+      const oauthState = oauthStateRes?.success ? oauthStateRes.data : null
+      if (!oauthState?.access_token || !oauthState?.user_id) {
+        setOAuthUserId(null)
+        setStorageUsage(null)
+        setStorageUsageError("当前未登录云账号")
+        return
+      }
+      setOAuthUserId(String(oauthState.user_id))
+
+      const platformId = import.meta.env.VITE_OAUTH_PLATFORM_ID
+      if (!platformId) {
+        setStorageUsage(null)
+        setStorageUsageError("未配置平台 ID")
+        return
+      }
+
+      const params = new URLSearchParams({
+        client_id: platformId,
+        user_id: oauthState.user_id,
+      })
+
+      const response = await fetch(
+        `https://appwrite.sectl.top/api/cloud/storage/usage?${params.toString()}`,
+        {
+          headers: {
+            Authorization: `Bearer ${oauthState.access_token}`,
+          },
+        }
+      )
+
+      const responseText = await response.text()
+      let payload: any = {}
+      try {
+        payload = responseText ? JSON.parse(responseText) : {}
+      } catch {
+        payload = {}
+      }
+
+      if (!response.ok) {
+        throw new Error(payload?.error_description || payload?.message || "获取云空间用量失败")
+      }
+
+      setStorageUsage({
+        used_storage_formatted: String(payload?.used_storage_formatted || "0 B"),
+        total_storage_formatted: String(payload?.total_storage_formatted || "0 B"),
+        percentage: Number.isFinite(payload?.percentage) ? Number(payload.percentage) : 0,
+        file_count: Number.isFinite(payload?.file_count) ? Number(payload.file_count) : 0,
+      })
+    } catch (error: any) {
+      setStorageUsage(null)
+      setStorageUsageError(error?.message || "获取云空间用量失败")
+    } finally {
+      setStorageUsageLoading(false)
+    }
+  }, [])
+
+  useEffect(() => {
+    if (!profilePopoverOpen) return
+    void loadStorageUsage()
+  }, [loadStorageUsage, profilePopoverOpen])
+
+  useEffect(() => {
+    const handleDataUpdated = (event: Event) => {
+      const customEvent = event as CustomEvent<{ source?: string }>
+      if (customEvent?.detail?.source !== "sync") return
+      const now = new Date().toISOString()
+      setLastSyncTime(now)
+      try {
+        localStorage.setItem("ss_last_sync_time", now)
+      } catch {
+        void 0
+      }
+    }
+
+    window.addEventListener("ss:data-updated", handleDataUpdated as EventListener)
+    return () => {
+      window.removeEventListener("ss:data-updated", handleDataUpdated as EventListener)
+      if (copyResetTimerRef.current) {
+        window.clearTimeout(copyResetTimerRef.current)
+        copyResetTimerRef.current = null
+      }
+    }
+  }, [])
+
+  const handleCopyUserId = async () => {
+    if (!oauthUserId) return
+    try {
+      await navigator.clipboard.writeText(oauthUserId)
+      setCopiedUserId(true)
+      if (copyResetTimerRef.current) {
+        window.clearTimeout(copyResetTimerRef.current)
+      }
+      copyResetTimerRef.current = window.setTimeout(() => {
+        setCopiedUserId(false)
+        copyResetTimerRef.current = null
+      }, 1500)
+    } catch {
+      setCopiedUserId(false)
+    }
+  }
+
+  const handleOAuthLogoutClick = async () => {
+    if (logoutLoading) return
+    setLogoutLoading(true)
+    try {
+      if (onOAuthLogout) {
+        await onOAuthLogout()
+      } else {
+        const api = (window as any).api
+        if (api?.oauthClearLoginState) {
+          await api.oauthClearLoginState()
+          window.dispatchEvent(new CustomEvent("ss:oauth-user-updated", { detail: { user: null } }))
+        }
+      }
+      setProfilePopoverOpen(false)
+    } finally {
+      setLogoutLoading(false)
+    }
+  }
+
+  const profilePopoverContent = (
+    <div style={{ width: "260px", display: "flex", flexDirection: "column", gap: "10px" }}>
+      <div
+        style={{
+          display: "flex",
+          alignItems: "center",
+          justifyContent: "space-between",
+          gap: "8px",
+        }}
+      >
+        <div style={{ minWidth: 0, flex: 1 }}>
+          <div style={{ fontSize: "12px", color: "var(--ss-text-secondary)" }}>账号 ID</div>
+          <div
+            style={{
+              fontSize: "12px",
+              color: "var(--ss-text-main)",
+              whiteSpace: "nowrap",
+              overflow: "hidden",
+              textOverflow: "ellipsis",
+            }}
+            title={oauthUserId || ""}
+          >
+            {oauthUserId || "未登录"}
+          </div>
+        </div>
+        <Button size="small" onClick={handleCopyUserId} disabled={!oauthUserId}>
+          {copiedUserId ? "已复制" : "复制"}
+        </Button>
+      </div>
+      <div
+        style={{
+          display: "flex",
+          alignItems: "center",
+          justifyContent: "space-between",
+          gap: "8px",
+        }}
+      >
+        <div style={{ fontSize: "12px", color: "var(--ss-text-secondary)" }}>最近同步时间</div>
+        <div style={{ fontSize: "12px", color: "var(--ss-text-main)" }}>{formattedLastSyncTime}</div>
+      </div>
+      <div style={{ fontSize: "13px", color: "var(--ss-text-secondary)" }}>云空间用量</div>
+      {storageUsageLoading ? (
+        <div style={{ display: "flex", justifyContent: "center", padding: "10px 0" }}>
+          <Spin size="small" />
+        </div>
+      ) : storageUsage ? (
+        <div style={{ display: "flex", flexDirection: "column", gap: "8px" }}>
+          <div style={{ fontSize: "13px", color: "var(--ss-text-main)" }}>
+            已用：{storageUsage.used_storage_formatted} / {storageUsage.total_storage_formatted}
+          </div>
+          <Progress
+            percent={Math.max(0, Math.min(100, Math.round(storageUsage.percentage)))}
+            size="small"
+            status={storageUsage.percentage > 90 ? "exception" : "active"}
+          />
+          <div style={{ fontSize: "12px", color: "var(--ss-text-secondary)" }}>
+            文件数量：{storageUsage.file_count}
+          </div>
+        </div>
+      ) : (
+        <div style={{ fontSize: "12px", color: "var(--ant-color-error, #ff4d4f)" }}>
+          {storageUsageError || "暂无云空间数据"}
+        </div>
+      )}
+      <Button
+        danger
+        block
+        size="small"
+        onClick={handleOAuthLogoutClick}
+        loading={logoutLoading}
+        disabled={!hasOAuthSession}
+      >
+        退出登录
+      </Button>
+    </div>
+  )
+
   return (
     <Layout
       style={{
@@ -307,6 +559,55 @@ export function ContentArea({
                 title={immersiveMode ? "退出沉浸模式" : "进入沉浸模式"}
               />
             )}
+            <Popover
+              trigger="click"
+              placement="bottomRight"
+              open={profilePopoverOpen}
+              onOpenChange={setProfilePopoverOpen}
+              content={profilePopoverContent}
+            >
+              <button
+                type="button"
+                style={{
+                  display: "inline-flex",
+                  alignItems: "center",
+                  gap: "8px",
+                  border: "1px solid var(--ss-border-color)",
+                  borderRadius: "999px",
+                  padding: "2px 10px 2px 2px",
+                  background: "var(--ss-bg-color)",
+                  minWidth: "92px",
+                  maxWidth: "180px",
+                  height: "30px",
+                  cursor: "pointer",
+                }}
+                title={userDisplayName}
+              >
+                <Avatar
+                  size={24}
+                  style={{
+                    backgroundColor: "var(--ant-color-primary, #1677ff)",
+                    color: "#fff",
+                    fontSize: "12px",
+                    flexShrink: 0,
+                  }}
+                >
+                  {avatarText || "U"}
+                </Avatar>
+                <span
+                  style={{
+                    color: "var(--ss-text-main)",
+                    fontSize: "13px",
+                    fontWeight: 600,
+                    whiteSpace: "nowrap",
+                    overflow: "hidden",
+                    textOverflow: "ellipsis",
+                  }}
+                >
+                  {userDisplayName}
+                </span>
+              </button>
+            </Popover>
             {permissionTag}
             {hasAnyPassword && (
               <>
diff --git a/src/components/Home.tsx b/src/components/Home.tsx
index 24b411f..4146a97 100644
--- a/src/components/Home.tsx
+++ b/src/components/Home.tsx
@@ -1,4 +1,4 @@
-import React, { useState, useEffect, useCallback, useMemo, useRef } from "react"
+import React, { useState, useEffect, useLayoutEffect, useCallback, useMemo, useRef } from "react"
 import {
   Card,
   Space,
@@ -11,11 +11,12 @@ import {
   message,
   InputNumber,
   Divider,
+  Dropdown,
 } from "antd"
-import { SearchOutlined, DeleteOutlined, UndoOutlined } from "@ant-design/icons"
+import { SearchOutlined, DeleteOutlined, UndoOutlined, UploadOutlined, CopyOutlined } from "@ant-design/icons"
 import { useTranslation } from "react-i18next"
 import { match, pinyin } from "pinyin-pro"
-import { getAvatarFromExtraJson } from "../utils/studentAvatar"
+import { getAvatarFromExtraJson, setAvatarInExtraJson } from "../utils/studentAvatar"
 import { useResponsive } from "../hooks/useResponsive"
 
 interface student {
@@ -56,7 +57,7 @@ interface rewardSetting {
 }
 
 type SortType = "alphabet" | "surname" | "group" | "score"
-type LayoutType = "grouped" | "squareGrid"
+type LayoutType = "grouped" | "squareGrid" | "largeAvatar"
 type SearchKeyboardLayout = "t9" | "qwerty26"
 
 const T9_KEY_MAP: Record<string, string> = {
@@ -127,6 +128,7 @@ export const Home: React.FC<HomeProps> = ({
   const [batchMode, setBatchMode] = useState(false)
   const [selectedStudentIds, setSelectedStudentIds] = useState<number[]>([])
   const [operationVisible, setOperationVisible] = useState(false)
+  const [operationOriginRect, setOperationOriginRect] = useState<DOMRect | null>(null)
   const [customScore, setCustomScore] = useState<number | undefined>(undefined)
   const [reasonContent, setReasonContent] = useState("")
   const [submitLoading, setSubmitLoading] = useState(false)
@@ -138,9 +140,25 @@ export const Home: React.FC<HomeProps> = ({
   const [rewardStudent, setRewardStudent] = useState<student | null>(null)
   const [rewardModalVisible, setRewardModalVisible] = useState(false)
   const [redeemLoading, setRedeemLoading] = useState(false)
+  const [renameVisible, setRenameVisible] = useState(false)
+  const [renameSaving, setRenameSaving] = useState(false)
+  const [renameStudent, setRenameStudent] = useState<student | null>(null)
+  const [renameValue, setRenameValue] = useState("")
+  const [avatarEditorVisible, setAvatarEditorVisible] = useState(false)
+  const [avatarEditorSaving, setAvatarEditorSaving] = useState(false)
+  const [avatarEditorStudent, setAvatarEditorStudent] = useState<student | null>(null)
+  const [avatarEditorValue, setAvatarEditorValue] = useState<string | null>(null)
+  const avatarInputRef = useRef<HTMLInputElement>(null)
   const longPressTimerRef = useRef<number | null>(null)
   const suppressClickRef = useRef(false)
   const fetchRequestIdRef = useRef(0)
+  const operationMorphAnimationRef = useRef<Animation | null>(null)
+  const operationMaskAnimationRef = useRef<Animation | null>(null)
+  const operationMorphRafRef = useRef<number | null>(null)
+  const operationClosingRef = useRef(false)
+  const operationCloseTokenRef = useRef(0)
+  const operationModalRootClass = "ss-home-operation-morph-root"
+  const operationModalClass = "ss-home-operation-morph-modal"
 
   const emitDataUpdated = (category: "events" | "students" | "reasons" | "all") => {
     window.dispatchEvent(new CustomEvent("ss:data-updated", { detail: { category } }))
@@ -589,7 +607,7 @@ export const Home: React.FC<HomeProps> = ({
     }
   }
 
-  const openOperation = (student: student) => {
+  const openOperation = (student: student, sourceEl?: HTMLElement | null) => {
     if (!canEdit) {
       messageApi.error(t("common.readOnly"))
       return
@@ -605,12 +623,277 @@ export const Home: React.FC<HomeProps> = ({
       )
       return
     }
+
+    const cardEl = sourceEl?.querySelector(".ant-card") as HTMLElement | null
+    const sourceRect = (cardEl ?? sourceEl)?.getBoundingClientRect() ?? null
+    logHome("operation:morph:open", {
+      student: student.name,
+      hasSourceEl: Boolean(sourceEl),
+      hasCardEl: Boolean(cardEl),
+      sourceRect: sourceRect
+        ? {
+            left: sourceRect.left,
+            top: sourceRect.top,
+            width: sourceRect.width,
+            height: sourceRect.height,
+          }
+        : null,
+    })
+    setOperationOriginRect(sourceRect)
+    operationClosingRef.current = false
+    operationCloseTokenRef.current += 1
+    operationMorphAnimationRef.current?.cancel()
+    operationMaskAnimationRef.current?.cancel()
+
     setSelectedStudent(student)
     setCustomScore(undefined)
     setReasonContent("")
     setOperationVisible(true)
   }
 
+  const playOperationMorph = useCallback((attempt = 0) => {
+    if (isPortraitMode || !operationOriginRect) return false
+    const modalEl = document.querySelector(`.${operationModalClass}`) as HTMLElement | null
+    if (!modalEl) {
+      const byClassCount = document.querySelectorAll(`.${operationModalClass}`).length
+      const byRootCount = document.querySelectorAll(`.${operationModalRootClass}`).length
+      const modalCount = document.querySelectorAll(".ant-modal").length
+      const rootExists = Boolean(document.querySelector(`.${operationModalRootClass}`))
+      logHome("operation:morph:modal-miss", {
+        attempt,
+        rootExists,
+        byClassCount,
+        byRootCount,
+        modalCount,
+      })
+      return false
+    }
+
+    // Clear any leftover transform from previous close animation before measuring.
+    operationMorphAnimationRef.current?.cancel()
+    for (const animation of modalEl.getAnimations()) {
+      animation.cancel()
+    }
+    modalEl.style.transform = ""
+    modalEl.style.opacity = ""
+    modalEl.style.visibility = ""
+    const maskEl = document.querySelector(`.${operationModalRootClass} .ant-modal-mask`) as
+      | HTMLElement
+      | null
+    if (maskEl) {
+      operationMaskAnimationRef.current?.cancel()
+      maskEl.style.opacity = ""
+      maskEl.style.visibility = ""
+      operationMaskAnimationRef.current = maskEl.animate([{ opacity: 0 }, { opacity: 1 }], {
+        duration: 220,
+        easing: "cubic-bezier(0.2, 0, 0, 1)",
+        fill: "both",
+      })
+    }
+    const modalRect = modalEl.getBoundingClientRect()
+    if (modalRect.width <= 0 || modalRect.height <= 0) {
+      logHome("operation:morph:modal-rect-invalid", {
+        attempt,
+        width: modalRect.width,
+        height: modalRect.height,
+      })
+      return false
+    }
+    const fromX = operationOriginRect.left - modalRect.left
+    const fromY = operationOriginRect.top - modalRect.top
+    const scaleX = operationOriginRect.width / modalRect.width
+    const scaleY = operationOriginRect.height / modalRect.height
+
+    logHome("operation:morph:computed", {
+      modalRect: {
+        left: modalRect.left,
+        top: modalRect.top,
+        width: modalRect.width,
+        height: modalRect.height,
+      },
+      fromX,
+      fromY,
+      scaleX,
+      scaleY,
+      expectedStartRect: {
+        left: modalRect.left + fromX,
+        top: modalRect.top + fromY,
+        width: modalRect.width * scaleX,
+        height: modalRect.height * scaleY,
+      },
+      animateSupported: typeof modalEl.animate === "function",
+    })
+
+    modalEl.style.transformOrigin = "top left"
+    modalEl.style.willChange = "transform, opacity"
+    operationMorphAnimationRef.current = modalEl.animate(
+      [
+        {
+          transform: `translate3d(${fromX}px, ${fromY}px, 0) scale(${scaleX}, ${scaleY})`,
+          opacity: 0.86,
+        },
+        {
+          transform: "translate3d(0, 0, 0) scale(1, 1)",
+          opacity: 1,
+        },
+      ],
+      {
+        duration: 480,
+        easing: "cubic-bezier(0.16, 1, 0.3, 1)",
+        fill: "both",
+      }
+    )
+    logHome("operation:morph:animation-start", {
+      attempt,
+      currentTime: operationMorphAnimationRef.current.currentTime,
+      playState: operationMorphAnimationRef.current.playState,
+    })
+    operationMorphAnimationRef.current.onfinish = () => {
+      logHome("operation:morph:animation-finish")
+    }
+    operationMorphAnimationRef.current.oncancel = () => {
+      logHome("operation:morph:animation-cancel")
+    }
+    return true
+  }, [isPortraitMode, operationOriginRect, operationModalClass, operationModalRootClass])
+
+  useLayoutEffect(() => {
+    if (isPortraitMode || !operationVisible) return
+
+    logHome("operation:morph:layout-open", {
+      hasOriginRect: Boolean(operationOriginRect),
+    })
+    let attempt = 0
+    const maxAttempts = 120
+
+    const run = () => {
+      operationMorphRafRef.current = null
+      const done = playOperationMorph(attempt)
+      if (done) return
+      if (attempt >= maxAttempts) {
+        logHome("operation:morph:retry-exhausted", { attempts: attempt + 1 })
+        return
+      }
+      attempt += 1
+      operationMorphRafRef.current = window.requestAnimationFrame(run)
+    }
+    operationMorphRafRef.current = window.requestAnimationFrame(run)
+
+    return () => {
+      if (operationMorphRafRef.current !== null) {
+        window.cancelAnimationFrame(operationMorphRafRef.current)
+        operationMorphRafRef.current = null
+      }
+    }
+  }, [isPortraitMode, operationVisible, operationOriginRect, playOperationMorph])
+
+  const finishCloseOperationModal = useCallback((skipCancelMorph = false, skipCancelMask = false) => {
+    if (!skipCancelMorph) {
+      operationMorphAnimationRef.current?.cancel()
+    }
+    operationMorphAnimationRef.current = null
+    if (!skipCancelMask) {
+      operationMaskAnimationRef.current?.cancel()
+    }
+    operationMaskAnimationRef.current = null
+    if (operationMorphRafRef.current !== null) {
+      window.cancelAnimationFrame(operationMorphRafRef.current)
+      operationMorphRafRef.current = null
+    }
+    operationClosingRef.current = false
+    setOperationVisible(false)
+    setOperationOriginRect(null)
+  }, [])
+
+  const closeOperationModal = useCallback(() => {
+    logHome("operation:morph:close", {
+      hasAnimation: Boolean(operationMorphAnimationRef.current),
+      playState: operationMorphAnimationRef.current?.playState,
+      currentTime: operationMorphAnimationRef.current?.currentTime,
+    })
+    if (operationMorphRafRef.current !== null) {
+      window.cancelAnimationFrame(operationMorphRafRef.current)
+      operationMorphRafRef.current = null
+    }
+    if (
+      !isPortraitMode &&
+      operationVisible &&
+      operationOriginRect &&
+      !operationClosingRef.current
+    ) {
+      const modalEl = document.querySelector(`.${operationModalClass}`) as HTMLElement | null
+      if (modalEl) {
+        const modalRect = modalEl.getBoundingClientRect()
+        if (modalRect.width > 0 && modalRect.height > 0) {
+          const toX = operationOriginRect.left - modalRect.left
+          const toY = operationOriginRect.top - modalRect.top
+          const toScaleX = operationOriginRect.width / modalRect.width
+          const toScaleY = operationOriginRect.height / modalRect.height
+          const closeToken = ++operationCloseTokenRef.current
+          operationClosingRef.current = true
+          operationMorphAnimationRef.current?.cancel()
+          operationMaskAnimationRef.current?.cancel()
+          modalEl.style.transformOrigin = "top left"
+          modalEl.style.willChange = "transform, opacity"
+          const maskEl = document.querySelector(
+            `.${operationModalRootClass} .ant-modal-mask`
+          ) as HTMLElement | null
+          if (maskEl) {
+            operationMaskAnimationRef.current = maskEl.animate([{ opacity: 1 }, { opacity: 0 }], {
+              duration: 320,
+              easing: "cubic-bezier(0.4, 0, 1, 1)",
+              fill: "both",
+            })
+          }
+          operationMorphAnimationRef.current = modalEl.animate(
+            [
+              { transform: "translate3d(0, 0, 0) scale(1, 1)", opacity: 1 },
+              {
+                transform: `translate3d(${toX}px, ${toY}px, 0) scale(${toScaleX}, ${toScaleY})`,
+                opacity: 0,
+              },
+            ],
+            {
+              duration: 320,
+              easing: "cubic-bezier(0.4, 0, 1, 1)",
+              fill: "both",
+            }
+          )
+          operationMorphAnimationRef.current.onfinish = () => {
+            if (operationCloseTokenRef.current !== closeToken || !operationClosingRef.current) {
+              logHome("operation:morph:close-animation-finish:stale", { closeToken })
+              return
+            }
+            logHome("operation:morph:close-animation-finish")
+            modalEl.style.opacity = "0"
+            modalEl.style.visibility = "hidden"
+            if (maskEl) {
+              maskEl.style.opacity = "0"
+              maskEl.style.visibility = "hidden"
+            }
+            finishCloseOperationModal(true, true)
+          }
+          operationMorphAnimationRef.current.oncancel = () => {
+            if (operationCloseTokenRef.current !== closeToken || !operationClosingRef.current) {
+              logHome("operation:morph:close-animation-cancel:stale", { closeToken })
+              return
+            }
+            logHome("operation:morph:close-animation-cancel")
+            finishCloseOperationModal()
+          }
+          return
+        }
+      }
+    }
+    finishCloseOperationModal()
+  }, [
+    finishCloseOperationModal,
+    isPortraitMode,
+    operationModalClass,
+    operationOriginRect,
+    operationVisible,
+  ])
+
   const handleToggleRewardMode = () => {
     if (!canEdit) {
       messageApi.error(t("common.readOnly"))
@@ -623,7 +906,7 @@ export const Home: React.FC<HomeProps> = ({
     setRewardMode((prev) => !prev)
     setBatchMode(false)
     setSelectedStudentIds([])
-    setOperationVisible(false)
+    closeOperationModal()
     setQuickActionStudentId(null)
     setRewardStudent(null)
     setRewardModalVisible(false)
@@ -717,7 +1000,7 @@ export const Home: React.FC<HomeProps> = ({
       setSelectedStudentIds([])
       setBatchMode(false)
       setSelectedStudent(null)
-      setOperationVisible(false)
+      closeOperationModal()
       setCustomScore(undefined)
       setReasonContent("")
       setQuickActionStudentId(null)
@@ -846,7 +1129,7 @@ export const Home: React.FC<HomeProps> = ({
     }
     setBatchMode(true)
     setSelectedStudent(null)
-    setOperationVisible(false)
+    closeOperationModal()
     setQuickActionStudentId(null)
   }
 
@@ -870,6 +1153,140 @@ export const Home: React.FC<HomeProps> = ({
     setOperationVisible(true)
   }
 
+  const readFileAsDataUrl = (file: File): Promise<string> => {
+    return new Promise((resolve, reject) => {
+      const reader = new FileReader()
+      reader.onload = () => {
+        const result = reader.result
+        if (typeof result === "string") resolve(result)
+        else reject(new Error("invalid-result"))
+      }
+      reader.onerror = () => reject(reader.error || new Error("read-failed"))
+      reader.readAsDataURL(file)
+    })
+  }
+
+  const handleAvatarEditorFileChange = async (file?: File) => {
+    if (!file) return
+    if (!file.type.startsWith("image/")) {
+      messageApi.error(t("students.avatarInvalidFile"))
+      return
+    }
+    const maxSize = 2 * 1024 * 1024
+    if (file.size > maxSize) {
+      messageApi.error(t("students.avatarTooLarge"))
+      return
+    }
+    try {
+      const dataUrl = await readFileAsDataUrl(file)
+      setAvatarEditorValue(dataUrl)
+    } catch {
+      messageApi.error(t("students.avatarReadFailed"))
+    }
+  }
+
+  const handleAvatarPasteFromClipboard = async () => {
+    if (typeof navigator === "undefined" || !navigator.clipboard?.read) {
+      messageApi.error(t("students.avatarClipboardUnsupported"))
+      return
+    }
+    try {
+      const clipboardItems = await navigator.clipboard.read()
+      for (const item of clipboardItems) {
+        const imageType = item.types.find((type) => type.startsWith("image/"))
+        if (!imageType) continue
+        const blob = await item.getType(imageType)
+        const ext = imageType.split("/")[1] || "png"
+        const file = new File([blob], `avatar-clipboard.${ext}`, { type: imageType })
+        await handleAvatarEditorFileChange(file)
+        return
+      }
+      messageApi.warning(t("students.avatarClipboardNoImage"))
+    } catch {
+      messageApi.error(t("students.avatarClipboardReadFailed"))
+    }
+  }
+
+  const openRenameStudent = (target: student) => {
+    if (!canEdit) {
+      messageApi.error(t("common.readOnly"))
+      return
+    }
+    setRenameStudent(target)
+    setRenameValue(target.name)
+    setRenameVisible(true)
+  }
+
+  const handleRenameStudent = async () => {
+    if (!renameStudent || !(window as any).api) return
+    const nextName = renameValue.trim()
+    if (!nextName) {
+      messageApi.warning(`${t("common.pleaseEnter")} ${t("common.name")}`)
+      return
+    }
+    if (nextName === renameStudent.name) {
+      setRenameVisible(false)
+      setRenameStudent(null)
+      setRenameValue("")
+      return
+    }
+    setRenameSaving(true)
+    try {
+      const res = await (window as any).api.updateStudent(renameStudent.id, { name: nextName })
+      if (res?.success) {
+        messageApi.success(t("common.success"))
+        setRenameVisible(false)
+        setRenameStudent(null)
+        setRenameValue("")
+        await fetchData(true)
+        emitDataUpdated("students")
+      } else {
+        messageApi.error(res?.message || t("home.submitFailed"))
+      }
+    } catch {
+      messageApi.error(t("home.submitFailed"))
+    } finally {
+      setRenameSaving(false)
+    }
+  }
+
+  const openAvatarEditor = (target: student) => {
+    if (!canEdit) {
+      messageApi.error(t("common.readOnly"))
+      return
+    }
+    setAvatarEditorStudent(target)
+    setAvatarEditorValue(target.avatarUrl || null)
+    setAvatarEditorVisible(true)
+  }
+
+  const handleSaveAvatarEditor = async () => {
+    if (!avatarEditorStudent || !(window as any).api) return
+    setAvatarEditorSaving(true)
+    try {
+      const latest =
+        students.find((item) => item.id === avatarEditorStudent.id) || avatarEditorStudent
+      const payload = setAvatarInExtraJson(latest.extra_json, avatarEditorValue)
+      const res = await (window as any).api.updateStudent(avatarEditorStudent.id, {
+        extra_json: payload,
+      })
+      if (res?.success) {
+        messageApi.success(t("students.avatarSaveSuccess"))
+        setAvatarEditorVisible(false)
+        setAvatarEditorStudent(null)
+        setAvatarEditorValue(null)
+        await fetchData(true)
+        emitDataUpdated("students")
+      } else {
+        messageApi.error(res?.message || t("students.avatarSaveFailed"))
+      }
+    } catch {
+      messageApi.error(t("students.avatarSaveFailed"))
+    } finally {
+      setAvatarEditorSaving(false)
+    }
+  }
+
   const renderStudentCard = (student: student, index: number) => {
     const avatarText = getDisplayText(student.name)
     const avatarColor = getAvatarColor(student.name)
@@ -895,7 +1312,7 @@ export const Home: React.FC<HomeProps> = ({
             e.stopPropagation()
             return
           }
-          openOperation(student)
+          openOperation(student, e.currentTarget as HTMLElement)
         }}
         onMouseDown={(e) => {
           if (batchMode) return
@@ -1113,7 +1530,7 @@ export const Home: React.FC<HomeProps> = ({
             e.stopPropagation()
             return
           }
-          openOperation(student)
+          openOperation(student, e.currentTarget as HTMLElement)
         }}
         onMouseDown={(e) => {
           if (batchMode) return
@@ -1280,7 +1697,7 @@ export const Home: React.FC<HomeProps> = ({
             e.stopPropagation()
             return
           }
-          openOperation(student)
+          openOperation(student, e.currentTarget as HTMLElement)
         }}
         onMouseDown={(e) => {
           if (batchMode) return
@@ -1476,6 +1893,271 @@ export const Home: React.FC<HomeProps> = ({
     )
   }
 
+  const renderStudentLargeAvatarCard = (student: student, index: number) => {
+    const avatarText = getDisplayText(student.name)
+    const avatarColor = getAvatarColor(student.name)
+    const isQuickActionMode = quickActionStudentId === student.id
+    const isSelected = selectedStudentIds.includes(student.id)
+    const displayPoints = getDisplayPoints(student)
+    const scoreColor = displayPoints > 0 ? "#52c41a" : displayPoints < 0 ? "#ff4d4f" : "#595959"
+
+    let rankBadge: string | null = null
+    if (sortType === "score" && !searchKeyword) {
+      if (index === 0) rankBadge = "🥇"
+      else if (index === 1) rankBadge = "🥈"
+      else if (index === 2) rankBadge = "🥉"
+    }
+
+    return (
+      <div
+        key={student.id}
+        data-student-quick-card="true"
+        onClick={(e) => {
+          if (suppressClickRef.current) {
+            suppressClickRef.current = false
+            e.preventDefault()
+            e.stopPropagation()
+            return
+          }
+          openOperation(student, e.currentTarget as HTMLElement)
+        }}
+        onMouseDown={(e) => {
+          if (batchMode) return
+          if (e.button !== 0) return
+          startLongPress(student)
+        }}
+        onMouseUp={cancelLongPress}
+        onMouseLeave={cancelLongPress}
+        onTouchStart={() => {
+          if (batchMode) return
+          startLongPress(student)
+        }}
+        onTouchEnd={cancelLongPress}
+        onTouchCancel={cancelLongPress}
+        onContextMenu={(e) => {
+          if (batchMode) return
+          e.preventDefault()
+          openQuickAction(student)
+        }}
+        style={{
+          cursor: "pointer",
+          position: "relative",
+          aspectRatio: "1.2 / 1",
+        }}
+        ref={(el) => {
+          groupedStudents.forEach((group) => {
+            if (group.key === "all") return
+            if (firstStudentIdByGroup.get(group.key) === student.id) {
+              groupRefs.current[group.key] = el
+            }
+          })
+        }}
+      >
+        <Card
+          style={{
+            width: "100%",
+            height: "100%",
+            backgroundColor: "var(--ss-card-bg)",
+            transition: "all 0.2s cubic-bezier(0.38, 0, 0.24, 1)",
+            border: isQuickActionMode
+              ? "1px solid var(--ant-color-primary, #1677ff)"
+              : isSelected
+                ? "1px solid var(--ant-color-primary, #1677ff)"
+                : "1px solid var(--ss-border-color)",
+            overflow: "hidden",
+            borderRadius: "18px",
+            boxShadow:
+              isQuickActionMode || isSelected ? "0 8px 18px rgba(22, 119, 255, 0.18)" : undefined,
+          }}
+          styles={{ body: { height: "100%", padding: 0 } }}
+        >
+          <div style={{ position: "relative", width: "100%", height: "100%" }}>
+            {student.avatarUrl ? (
+              <img
+                src={student.avatarUrl}
+                alt={student.name}
+                style={{ width: "100%", height: "100%", objectFit: "cover" }}
+              />
+            ) : (
+              <div
+                style={{
+                  width: "100%",
+                  height: "100%",
+                  background: `linear-gradient(140deg, ${avatarColor} 0%, ${avatarColor}aa 100%)`,
+                  display: "flex",
+                  alignItems: "center",
+                  justifyContent: "center",
+                  color: "rgba(255,255,255,0.95)",
+                  fontWeight: 700,
+                  fontSize: avatarText.length > 1 ? "46px" : "56px",
+                  letterSpacing: "0.02em",
+                }}
+              >
+                {avatarText}
+              </div>
+            )}
+
+            <div
+              style={{
+                position: "absolute",
+                inset: 0,
+                background:
+                  "linear-gradient(180deg, rgba(255,255,255,0) 56%, rgba(255,255,255,0.72) 84%, rgba(255,255,255,0.95) 100%)",
+                pointerEvents: "none",
+              }}
+            />
+
+            {rankBadge && (
+              <div
+                style={{
+                  position: "absolute",
+                  top: 8,
+                  right: 10,
+                  fontSize: "24px",
+                  lineHeight: 1,
+                  zIndex: 2,
+                }}
+              >
+                {rankBadge}
+              </div>
+            )}
+
+            {isSelected && (
+              <Tag
+                color="processing"
+                style={{
+                  position: "absolute",
+                  top: 8,
+                  left: 8,
+                  marginInlineEnd: 0,
+                  zIndex: 2,
+                  backdropFilter: "blur(4px)",
+                }}
+              >
+                {t("home.selected")}
+              </Tag>
+            )}
+
+            {isQuickActionMode ? (
+              <div
+                style={{
+                  position: "absolute",
+                  inset: 0,
+                  display: "flex",
+                  alignItems: "center",
+                  justifyContent: "center",
+                  gap: "10px",
+                  zIndex: 3,
+                  background: "rgba(0, 0, 0, 0.18)",
+                }}
+              >
+                <Button
+                  type="primary"
+                  size="small"
+                  onClick={(e) => {
+                    e.stopPropagation()
+                    handleQuickAdjust(student, 1)
+                  }}
+                  style={{
+                    minWidth: "52px",
+                    height: "32px",
+                    borderRadius: "16px",
+                    fontWeight: 700,
+                    paddingInline: "10px",
+                  }}
+                >
+                  +1
+                </Button>
+                <Button
+                  danger
+                  size="small"
+                  onClick={(e) => {
+                    e.stopPropagation()
+                    handleQuickAdjust(student, -1)
+                  }}
+                  style={{
+                    minWidth: "52px",
+                    height: "32px",
+                    borderRadius: "16px",
+                    fontWeight: 700,
+                    paddingInline: "10px",
+                  }}
+                >
+                  -1
+                </Button>
+              </div>
+            ) : (
+              <div
+                style={{
+                  position: "absolute",
+                  left: 8,
+                  right: 8,
+                  bottom: 8,
+                  display: "flex",
+                  alignItems: "center",
+                  justifyContent: "space-between",
+                  gap: "8px",
+                  zIndex: 2,
+                }}
+              >
+                <Dropdown
+                  trigger={["contextMenu"]}
+                  menu={{
+                    items: [
+                      { key: "rename", label: "改名", disabled: !canEdit },
+                      { key: "avatar", label: t("students.editAvatar"), disabled: !canEdit },
+                    ],
+                    onClick: ({ key, domEvent }) => {
+                      domEvent.stopPropagation()
+                      if (key === "rename") openRenameStudent(student)
+                      if (key === "avatar") openAvatarEditor(student)
+                    },
+                  }}
+                >
+                  <div
+                    onContextMenu={(e) => e.stopPropagation()}
+                    style={{
+                      maxWidth: "65%",
+                      fontWeight: 700,
+                      fontSize: "22px",
+                      lineHeight: 1,
+                      color: "#111",
+                      whiteSpace: "nowrap",
+                      overflow: "hidden",
+                      textOverflow: "ellipsis",
+                      background: "rgba(255,255,255,0.62)",
+                      border: "1px solid rgba(255,255,255,0.82)",
+                      borderRadius: "8px",
+                      padding: "3px 9px",
+                      backdropFilter: "blur(4px)",
+                    }}
+                  >
+                    {student.name}
+                  </div>
+                </Dropdown>
+                <div
+                  style={{
+                    fontWeight: 800,
+                    fontSize: "28px",
+                    lineHeight: 1,
+                    color: scoreColor,
+                    background: "rgba(255,255,255,0.62)",
+                    border: "1px solid rgba(255,255,255,0.82)",
+                    borderRadius: "8px",
+                    padding: "2px 9px",
+                    backdropFilter: "blur(4px)",
+                  }}
+                >
+                  {displayPoints > 0 ? `+${displayPoints}` : displayPoints}
+                </div>
+              </div>
+            )}
+          </div>
+        </Card>
+      </div>
+    )
+  }
+
   const renderGroupedCards = () => {
     if (layoutType === "squareGrid") {
       return (
@@ -1491,6 +2173,20 @@ export const Home: React.FC<HomeProps> = ({
       )
     }
 
+    if (layoutType === "largeAvatar") {
+      return (
+        <div
+          style={{
+            display: "grid",
+            gridTemplateColumns: "repeat(auto-fill, minmax(180px, 1fr))",
+            gap: isPortraitMode ? "10px" : "14px",
+          }}
+        >
+          {sortedStudents.map((student, idx) => renderStudentLargeAvatarCard(student, idx))}
+        </div>
+      )
+    }
+
     return groupedStudents.map((group) => (
       <div
         key={group.key}
@@ -2394,6 +3090,7 @@ export const Home: React.FC<HomeProps> = ({
                 options={[
                   { value: "grouped", label: t("home.layoutBy.grouped") },
                   { value: "squareGrid", label: t("home.layoutBy.squareGrid") },
+                  { value: "largeAvatar", label: t("home.layoutBy.largeAvatar") },
                 ]}
               />
               <Button
@@ -2522,6 +3219,114 @@ export const Home: React.FC<HomeProps> = ({
         )}
       </Modal>
 
+      <Modal
+        title={`${t("common.edit")} ${t("common.name")} - ${renameStudent?.name || ""}`}
+        open={renameVisible}
+        onCancel={() => {
+          setRenameVisible(false)
+          setRenameStudent(null)
+          setRenameValue("")
+        }}
+        onOk={handleRenameStudent}
+        okButtonProps={{ loading: renameSaving, disabled: !renameValue.trim() }}
+        okText={t("common.save")}
+        cancelText={t("common.cancel")}
+        destroyOnHidden
+      >
+        <Input
+          value={renameValue}
+          onChange={(e) => setRenameValue(e.target.value)}
+          placeholder={`${t("common.pleaseEnter")} ${t("common.name")}`}
+          maxLength={32}
+          autoFocus
+          onPressEnter={() => {
+            if (!renameSaving && renameValue.trim()) handleRenameStudent()
+          }}
+        />
+      </Modal>
+
+      <Modal
+        title={t("students.editAvatarTitle", { name: avatarEditorStudent?.name || "" })}
+        open={avatarEditorVisible}
+        onCancel={() => {
+          setAvatarEditorVisible(false)
+          setAvatarEditorStudent(null)
+          setAvatarEditorValue(null)
+        }}
+        onOk={handleSaveAvatarEditor}
+        okButtonProps={{ loading: avatarEditorSaving, disabled: !avatarEditorStudent }}
+        okText={t("common.save")}
+        cancelText={t("common.cancel")}
+        destroyOnHidden
+      >
+        <div style={{ display: "flex", flexDirection: "column", gap: 12 }}>
+          <div style={{ display: "flex", justifyContent: "center", padding: "8px 0" }}>
+            {avatarEditorValue ? (
+              <img
+                src={avatarEditorValue}
+                alt={avatarEditorStudent?.name || "avatar"}
+                style={{
+                  width: 96,
+                  height: 96,
+                  borderRadius: "50%",
+                  objectFit: "cover",
+                  border: "1px solid var(--ss-border-color)",
+                }}
+              />
+            ) : (
+              <div
+                style={{
+                  width: 96,
+                  height: 96,
+                  borderRadius: "50%",
+                  border: "1px dashed var(--ss-border-color)",
+                  backgroundColor: "var(--ss-bg-color)",
+                  color: "var(--ss-text-secondary)",
+                  display: "flex",
+                  alignItems: "center",
+                  justifyContent: "center",
+                }}
+              >
+                {t("students.noAvatar")}
+              </div>
+            )}
+          </div>
+          <div style={{ display: "flex", gap: 8 }}>
+            <Button
+              icon={<UploadOutlined />}
+              onClick={() => avatarInputRef.current?.click()}
+              disabled={!canEdit}
+            >
+              {t("students.avatarUpload")}
+            </Button>
+            <Button
+              icon={<CopyOutlined />}
+              onClick={handleAvatarPasteFromClipboard}
+              disabled={!canEdit}
+            >
+              {t("students.avatarClipboardImport")}
+            </Button>
+            <Button onClick={() => setAvatarEditorValue(null)} disabled={!canEdit}>
+              {t("students.avatarClear")}
+            </Button>
+          </div>
+          <input
+            ref={avatarInputRef}
+            type="file"
+            accept="image/*"
+            style={{ display: "none" }}
+            onChange={(e) => {
+              const file = e.target.files?.[0]
+              handleAvatarEditorFileChange(file)
+              if (avatarInputRef.current) avatarInputRef.current.value = ""
+            }}
+          />
+          <div style={{ color: "var(--ss-text-secondary)", fontSize: 12 }}>
+            {t("students.avatarTip")}
+          </div>
+        </div>
+      </Modal>
+
       <div
         ref={immersiveToolbarRef}
         data-immersive-toolbar="true"
@@ -2599,6 +3404,7 @@ export const Home: React.FC<HomeProps> = ({
             options={[
               { value: "grouped", label: t("home.layoutBy.grouped") },
               { value: "squareGrid", label: t("home.layoutBy.squareGrid") },
+              { value: "largeAvatar", label: t("home.layoutBy.largeAvatar") },
             ]}
           />
           <Button
@@ -2705,7 +3511,7 @@ export const Home: React.FC<HomeProps> = ({
           placement="bottom"
           height="100%"
           open={operationVisible}
-          onClose={() => setOperationVisible(false)}
+          onClose={closeOperationModal}
           afterOpenChange={applyDrawerDragRegion}
           destroyOnClose
           styles={{
@@ -2713,7 +3519,7 @@ export const Home: React.FC<HomeProps> = ({
           }}
           footer={
             <Space style={{ width: "100%", justifyContent: "flex-end" }}>
-              <Button onClick={() => setOperationVisible(false)}>{t("common.cancel")}</Button>
+              <Button onClick={closeOperationModal}>{t("common.cancel")}</Button>
               <Button type="primary" onClick={handleSubmit} loading={submitLoading}>
                 {t("home.submitOperation")}
               </Button>
@@ -2730,13 +3536,18 @@ export const Home: React.FC<HomeProps> = ({
               : t("home.operationTitle", { name: selectedStudent?.name })
           }
           open={operationVisible}
-          onCancel={() => setOperationVisible(false)}
+          onCancel={closeOperationModal}
           onOk={handleSubmit}
           confirmLoading={submitLoading}
           okText={t("home.submitOperation")}
           cancelText={t("common.cancel")}
           width={560}
           centered
+          forceRender
+          transitionName=""
+          maskTransitionName=""
+          rootClassName={operationModalRootClass}
+          className={operationModalClass}
           styles={{
             body: {
               maxHeight: "calc(100vh - 220px)",
diff --git a/src/components/OAuth/OAuthLogin.tsx b/src/components/OAuth/OAuthLogin.tsx
index 8ffaef3..d95036e 100644
--- a/src/components/OAuth/OAuthLogin.tsx
+++ b/src/components/OAuth/OAuthLogin.tsx
@@ -1,5 +1,5 @@
 import { Button, message, Modal, Space, Spin } from "antd"
-import { useEffect, useState } from "react"
+import { useCallback, useEffect, useRef, useState } from "react"
 import { useTranslation } from "react-i18next"
 import { open } from "@tauri-apps/plugin-shell"
 import { listen, UnlistenFn } from "@tauri-apps/api/event"
@@ -28,20 +28,29 @@ interface OAuthCallbackResult {
   error_description?: string
 }
 
-// 全局锁，确保同一时间只有一个回调在处理
-let isProcessingCallback = false
-// 全局监听器引用，确保只有一个监听器
-let globalUnlisten: UnlistenFn | null = null
-// 已处理事件ID集合，用于精确去重
-const processedEventIds = new Set<string>()
+const OAUTH_EXPECTED_STATE_KEY = "oauth_expected_state"
+const OAUTH_CODE_VERIFIER_KEY = "oauth_code_verifier"
+const OAUTH_CALLBACK_URL_KEY = "oauth_callback_url"
+const DEFAULT_CALLBACK_URL = "http://127.0.0.1:16888/oauth/callback"
+
+const getExpectedState = () => sessionStorage.getItem(OAUTH_EXPECTED_STATE_KEY)
+const setExpectedState = (state: string) => sessionStorage.setItem(OAUTH_EXPECTED_STATE_KEY, state)
+const clearExpectedState = () => sessionStorage.removeItem(OAUTH_EXPECTED_STATE_KEY)
+
+const getCodeVerifier = () => sessionStorage.getItem(OAUTH_CODE_VERIFIER_KEY)
+const setCodeVerifier = (codeVerifier: string) =>
+  sessionStorage.setItem(OAUTH_CODE_VERIFIER_KEY, codeVerifier)
+const clearCodeVerifier = () => sessionStorage.removeItem(OAUTH_CODE_VERIFIER_KEY)
+
+const getCallbackUrl = () => sessionStorage.getItem(OAUTH_CALLBACK_URL_KEY) || DEFAULT_CALLBACK_URL
+const setCallbackUrl = (callbackUrl: string) =>
+  sessionStorage.setItem(OAUTH_CALLBACK_URL_KEY, callbackUrl)
+const clearCallbackUrl = () => sessionStorage.removeItem(OAUTH_CALLBACK_URL_KEY)
 
 export function OAuthLogin({ visible, onClose, onSuccess }: OAuthLoginProps) {
   const { t } = useTranslation()
   const [loading, setLoading] = useState(false)
-  // 使用 sessionStorage 存储 state，防止组件重新渲染导致丢失
-  const getExpectedState = () => sessionStorage.getItem("oauth_expected_state")
-  const setExpectedState = (state: string) => sessionStorage.setItem("oauth_expected_state", state)
-  const clearExpectedState = () => sessionStorage.removeItem("oauth_expected_state")
+  const isProcessingCallbackRef = useRef(false)
 
   const getOAuthConfig = (): OAuthConfig | null => {
     const api = (window as any).api
@@ -60,65 +69,72 @@ export function OAuthLogin({ visible, onClose, onSuccess }: OAuthLoginProps) {
     }
   }
 
-  const handleOAuthCallback = async (result: OAuthCallbackResult) => {
-    // 生成事件唯一标识（使用code和state的组合，如果没有则使用时间戳）
-    const eventId = result.code && result.state
-      ? `${result.code}_${result.state}`
-      : `error_${result.error}_${Date.now()}`
-
-    // 检查事件是否已被处理
-    if (processedEventIds.has(eventId)) {
-      console.log("[OAuth] 事件已被处理，跳过:", eventId)
-      return
-    }
-
-    // 全局锁检查，防止并发处理
-    if (isProcessingCallback) {
-      console.log("[OAuth] 回调正在处理中，跳过")
-      return
-    }
-
-    console.log("[OAuth] 收到回调:", result)
-    const config = getOAuthConfig()
-    if (!config) {
-      console.error("[OAuth] 配置不存在")
-      return
-    }
-
+  const stopCallbackServer = useCallback(async () => {
+    const api = (window as any).api
+    if (!api?.oauthStopCallbackServer) return
     try {
-      isProcessingCallback = true
-      processedEventIds.add(eventId)
+      await api.oauthStopCallbackServer()
+    } catch (error) {
+      console.error("[OAuth] 停止回调服务器失败:", error)
+    }
+  }, [])
 
-      if (result.error) {
-        console.error("[OAuth] 错误:", result.error, result.error_description)
-        message.error(result.error_description || result.error || "授权失败")
+  const clearOAuthTempState = useCallback(() => {
+    clearExpectedState()
+    clearCodeVerifier()
+    clearCallbackUrl()
+  }, [])
+
+  const handleOAuthCallback = useCallback(
+    async (result: OAuthCallbackResult) => {
+      if (isProcessingCallbackRef.current) {
+        console.log("[OAuth] 回调正在处理中，跳过")
+        return
+      }
+
+      console.log("[OAuth] 收到回调:", result)
+      const config = getOAuthConfig()
+      if (!config) {
+        console.error("[OAuth] 配置不存在")
+        message.error("OAuth 配置未设置")
         setLoading(false)
         return
       }
 
-      if (result.code) {
+      const api = (window as any).api
+      if (!api) {
+        message.error("API 不可用")
+        setLoading(false)
+        return
+      }
+
+      try {
+        isProcessingCallbackRef.current = true
+
+        if (result.error) {
+          console.error("[OAuth] 错误:", result.error, result.error_description)
+          message.error(result.error_description || result.error || "授权失败")
+          return
+        }
+
+        if (!result.code) return
+
         console.log("[OAuth] 授权码:", result.code)
         console.log("[OAuth] State:", result.state, "期望:", getExpectedState())
 
-        // 验证 state 防止 CSRF
         const expectedState = getExpectedState()
         if (expectedState && result.state !== expectedState) {
           message.error("安全验证失败：state 不匹配")
-          setLoading(false)
           return
         }
 
-        const api = (window as any).api
-        const callbackUrl = "http://127.0.0.1:16888/oauth/callback"
-
-        // 获取存储的 code_verifier
-        const codeVerifier = sessionStorage.getItem("oauth_code_verifier")
+        const codeVerifier = getCodeVerifier()
         if (!codeVerifier) {
           message.error("安全验证失败：缺少 code_verifier")
-          setLoading(false)
           return
         }
 
+        const callbackUrl = getCallbackUrl()
         console.log("[OAuth] 开始换取 token...")
         const tokenRes = await api.oauthExchangeCode(
           result.code,
@@ -131,7 +147,6 @@ export function OAuthLogin({ visible, onClose, onSuccess }: OAuthLoginProps) {
 
         if (!tokenRes.success) {
           message.error(tokenRes.message || "获取访问令牌失败")
-          setLoading(false)
           return
         }
 
@@ -141,13 +156,11 @@ export function OAuthLogin({ visible, onClose, onSuccess }: OAuthLoginProps) {
 
         if (!userRes.success) {
           message.error(userRes.message || "获取用户信息失败")
-          setLoading(false)
           return
         }
 
         console.log("[OAuth] 登录成功，保存登录状态...")
 
-        // 保存登录状态到本地
         const loginState = {
           access_token: tokenRes.data.access_token,
           refresh_token: tokenRes.data.refresh_token,
@@ -168,61 +181,65 @@ export function OAuthLogin({ visible, onClose, onSuccess }: OAuthLoginProps) {
           console.error("[OAuth] 保存登录状态失败:", saveError)
         }
 
-        console.log("[OAuth] 清理资源...")
-        await api.oauthStopCallbackServer()
-        clearExpectedState()
-        sessionStorage.removeItem("oauth_code_verifier")
+        window.dispatchEvent(
+          new CustomEvent("ss:oauth-user-updated", {
+            detail: { user: userRes.data },
+          })
+        )
         console.log("[OAuth] 调用 onSuccess...")
         onSuccess(userRes.data)
         console.log("[OAuth] 调用 onClose...")
         onClose()
+      } catch (error: any) {
+        console.error("[OAuth] 处理回调时发生错误:", error)
+        message.error(error.message || "登录失败")
+      } finally {
+        await stopCallbackServer()
+        clearOAuthTempState()
+        setLoading(false)
+        window.setTimeout(() => {
+          isProcessingCallbackRef.current = false
+          console.log("[OAuth] 局部锁已释放")
+        }, 300)
       }
-    } catch (error: any) {
-      console.error("[OAuth] 处理回调时发生错误:", error)
-      message.error(error.message || "登录失败")
-    } finally {
-      console.log("[OAuth] 回调处理完成，重置状态")
-      setLoading(false)
-      // 立即释放锁，无需延迟
-      isProcessingCallback = false
-      console.log("[OAuth] 全局锁已释放")
-
-      // 5分钟后清理该事件ID，防止内存泄漏
-      setTimeout(() => {
-        processedEventIds.delete(eventId)
-        console.log("[OAuth] 事件ID已清理:", eventId)
-      }, 5 * 60 * 1000)
-    }
-  }
+    },
+    [clearOAuthTempState, onClose, onSuccess, stopCallbackServer]
+  )
 
   useEffect(() => {
-    const setupListener = async () => {
-      // 如果已经有全局监听器，不再创建新的
-      if (globalUnlisten) {
-        console.log("[OAuth] 全局监听器已存在，跳过创建")
-        return
-      }
+    if (!visible) return
 
+    let unlisten: UnlistenFn | null = null
+    let disposed = false
+
+    const setupListener = async () => {
       try {
-        const unlisten = await listen<OAuthCallbackResult>("oauth-callback", async (event) => {
+        unlisten = await listen<OAuthCallbackResult>("oauth-callback", async (event) => {
           console.log("[OAuth] Event listener 收到 payload:", event.payload)
           if (event.payload) {
             await handleOAuthCallback(event.payload)
           }
         })
-        globalUnlisten = unlisten
-        console.log("[OAuth] 全局监听器已创建")
+
+        if (disposed) {
+          unlisten?.()
+          unlisten = null
+        }
       } catch (error) {
         console.error("Failed to setup OAuth callback listener:", error)
       }
     }
 
-    setupListener()
+    void setupListener()
 
-    // 组件卸载时不取消监听，保持全局监听
-    // 只在应用完全关闭时才清理
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [])
+    return () => {
+      disposed = true
+      if (unlisten) {
+        unlisten()
+        unlisten = null
+      }
+    }
+  }, [handleOAuthCallback, visible])
 
   const handleOAuthLogin = async () => {
     const config = getOAuthConfig()
@@ -244,8 +261,8 @@ export function OAuthLogin({ visible, onClose, onSuccess }: OAuthLoginProps) {
       }
 
       const callbackUrl = serverRes.data.url
+      setCallbackUrl(callbackUrl)
 
-      // 生成随机 state 防止 CSRF
       const state = generateRandomState()
       console.log("[OAuth] 生成 state:", state)
       setExpectedState(state)
@@ -259,8 +276,7 @@ export function OAuthLogin({ visible, onClose, onSuccess }: OAuthLoginProps) {
         return
       }
 
-      // 存储 code_verifier 用于后续换取 token
-      sessionStorage.setItem("oauth_code_verifier", urlRes.data.code_verifier)
+      setCodeVerifier(urlRes.data.code_verifier)
       console.log("[OAuth] code_verifier 已存储")
 
       await open(urlRes.data.url)
@@ -270,7 +286,13 @@ export function OAuthLogin({ visible, onClose, onSuccess }: OAuthLoginProps) {
     }
   }
 
-  // 生成随机 state 字符串
+  const handleModalClose = () => {
+    setLoading(false)
+    clearOAuthTempState()
+    void stopCallbackServer()
+    onClose()
+  }
+
   const generateRandomState = (): string => {
     const array = new Uint8Array(32)
     window.crypto.getRandomValues(array)
@@ -284,7 +306,7 @@ export function OAuthLogin({ visible, onClose, onSuccess }: OAuthLoginProps) {
     <Modal
       title={t("auth.oauthLogin", "SECTL Auth 登录")}
       open={visible}
-      onCancel={onClose}
+      onCancel={handleModalClose}
       footer={null}
       width={400}
       centered
diff --git a/src/components/RewardExchange.tsx b/src/components/RewardExchange.tsx
index 7e73528..7423095 100644
--- a/src/components/RewardExchange.tsx
+++ b/src/components/RewardExchange.tsx
@@ -35,6 +35,14 @@ export const RewardExchange: React.FC<{ canEdit: boolean }> = ({ canEdit }) => {
   const [exchangeMode, setExchangeMode] = useState(false)
   const [selectedStudent, setSelectedStudent] = useState<StudentItem | null>(null)
   const [chooseRewardVisible, setChooseRewardVisible] = useState(false)
+  const [modalMorphStage, setModalMorphStage] = useState<"idle" | "measuring" | "enter">("idle")
+  const [modalMorphVars, setModalMorphVars] = useState<{
+    fromX: number
+    fromY: number
+    scaleX: number
+    scaleY: number
+  } | null>(null)
+  const [originCardRect, setOriginCardRect] = useState<DOMRect | null>(null)
   const [messageApi, contextHolder] = message.useMessage()
 
   const emitDataUpdated = () => {
@@ -90,16 +98,75 @@ export const RewardExchange: React.FC<{ canEdit: boolean }> = ({ canEdit }) => {
     return rewards.filter((r) => r.cost_points <= selectedStudent.reward_points)
   }, [rewards, selectedStudent])
 
-  const handleStudentClick = (student: StudentItem) => {
+  const handleStudentClick = (student: StudentItem, event: React.MouseEvent<HTMLDivElement>) => {
     if (!exchangeMode) return
     if (!canEdit) {
       messageApi.error(t("common.readOnly"))
       return
     }
+
+    const cardBody = event.currentTarget.querySelector(".ant-card-body") as HTMLElement | null
+    const sourceRect = (cardBody ?? event.currentTarget).getBoundingClientRect()
+    setOriginCardRect(sourceRect)
+    setModalMorphVars(null)
+    setModalMorphStage("measuring")
     setSelectedStudent(student)
     setChooseRewardVisible(true)
   }
 
+  useEffect(() => {
+    if (!chooseRewardVisible || !originCardRect || modalMorphStage !== "measuring") {
+      return
+    }
+
+    const frame = window.requestAnimationFrame(() => {
+      const modalEl = document.querySelector(".ss-reward-morph-modal.ant-modal") as HTMLElement | null
+      if (!modalEl) {
+        setModalMorphStage("idle")
+        return
+      }
+
+      const modalRect = modalEl.getBoundingClientRect()
+      const fromX =
+        originCardRect.left + originCardRect.width / 2 - (modalRect.left + modalRect.width / 2)
+      const fromY =
+        originCardRect.top + originCardRect.height / 2 - (modalRect.top + modalRect.height / 2)
+      const scaleX = Math.min(Math.max(originCardRect.width / modalRect.width, 0.28), 1)
+      const scaleY = Math.min(Math.max(originCardRect.height / modalRect.height, 0.2), 1)
+
+      setModalMorphVars({ fromX, fromY, scaleX, scaleY })
+      window.requestAnimationFrame(() => {
+        setModalMorphStage("enter")
+      })
+    })
+
+    return () => {
+      window.cancelAnimationFrame(frame)
+    }
+  }, [chooseRewardVisible, modalMorphStage, originCardRect])
+
+  const resetModalState = () => {
+    setChooseRewardVisible(false)
+    setSelectedStudent(null)
+    setModalMorphStage("idle")
+    setModalMorphVars(null)
+    setOriginCardRect(null)
+  }
+
+  const modalClassName =
+    modalMorphStage === "measuring"
+      ? "ss-reward-morph-modal is-preparing"
+      : modalMorphStage === "enter"
+        ? "ss-reward-morph-modal is-enter"
+        : "ss-reward-morph-modal"
+
+  const modalStyle = {
+    "--ss-modal-from-x": `${modalMorphVars?.fromX ?? 0}px`,
+    "--ss-modal-from-y": `${modalMorphVars?.fromY ?? 0}px`,
+    "--ss-modal-scale-x": `${modalMorphVars?.scaleX ?? 1}`,
+    "--ss-modal-scale-y": `${modalMorphVars?.scaleY ?? 1}`,
+  } as React.CSSProperties
+
   const handleRedeem = async (reward: RewardItem) => {
     if (!(window as any).api || !selectedStudent) return
     if (!canEdit) {
@@ -120,8 +187,7 @@ export const RewardExchange: React.FC<{ canEdit: boolean }> = ({ canEdit }) => {
           points: reward.cost_points,
         })
       )
-      setChooseRewardVisible(false)
-      setSelectedStudent(null)
+      resetModalState()
       setExchangeMode(false)
       fetchData()
       emitDataUpdated()
@@ -199,7 +265,7 @@ export const RewardExchange: React.FC<{ canEdit: boolean }> = ({ canEdit }) => {
             <Card
               key={student.id}
               hoverable={exchangeMode}
-              onClick={() => handleStudentClick(student)}
+              onClick={(event) => handleStudentClick(student, event)}
               style={{
                 cursor: exchangeMode ? "pointer" : "default",
                 border: exchangeMode
@@ -234,11 +300,14 @@ export const RewardExchange: React.FC<{ canEdit: boolean }> = ({ canEdit }) => {
       <Modal
         title={t("rewardExchange.chooseRewardTitle", { name: selectedStudent?.name || "" })}
         open={chooseRewardVisible}
-        onCancel={() => {
-          setChooseRewardVisible(false)
-          setSelectedStudent(null)
-        }}
+        onCancel={resetModalState}
         footer={null}
+        className={modalClassName}
+        rootClassName="ss-reward-morph-root"
+        wrapClassName="ss-reward-morph-wrap"
+        style={modalStyle}
+        transitionName="ss-reward-noop-motion"
+        maskTransitionName="ss-reward-noop-motion"
         destroyOnHidden
       >
         {!selectedStudent ? null : (
diff --git a/src/components/Settings.tsx b/src/components/Settings.tsx
index 1e9aa75..363485c 100644
--- a/src/components/Settings.tsx
+++ b/src/components/Settings.tsx
@@ -206,6 +206,12 @@ export const Settings: React.FC<{
     permission: number
   } | null>(null)
 
+  const getOAuthPermissionLabel = (oauthPermission: number) => {
+    if (oauthPermission >= 18) return t("permissions.admin")
+    if (oauthPermission >= 1) return t("permissions.points")
+    return t("permissions.view")
+  }
+
   const permissionTag = useMemo(() => {
     return (
       <Tag
@@ -312,10 +318,41 @@ export const Settings: React.FC<{
     }
     const authRes = await api.authGetStatus()
     if (authRes.success && authRes.data) setSecurityStatus(authRes.data)
+
+    const oauthStateRes = await api.oauthLoadLoginState()
+    if (oauthStateRes?.success && oauthStateRes.data) {
+      setOAuthUserInfo({
+        user_id: oauthStateRes.data.user_id,
+        email: oauthStateRes.data.email,
+        name: oauthStateRes.data.name,
+        github_username: oauthStateRes.data.github_username,
+        permission: oauthStateRes.data.permission,
+      })
+    } else {
+      setOAuthUserInfo(null)
+    }
+
     await loadMcpStatus()
     await loadSystemFonts(savedFontFamily)
   }
 
+  const handleOAuthLogout = async () => {
+    const api = (window as any).api
+    if (!api) {
+      setOAuthUserInfo(null)
+      return
+    }
+
+    try {
+      await api.oauthClearLoginState()
+      setOAuthUserInfo(null)
+      window.dispatchEvent(new CustomEvent("ss:oauth-user-updated", { detail: { user: null } }))
+      messageApi.success(t("auth.logout"))
+    } catch (error: any) {
+      messageApi.error(error?.message || t("common.error"))
+    }
+  }
+
   const loadAboutContent = async () => {
     try {
       const res = await fetch("/about-content.json")
@@ -376,6 +413,42 @@ export const Settings: React.FC<{
     }
   }, [])
 
+  useEffect(() => {
+    const handleOAuthUserUpdated = (event: Event) => {
+      const customEvent = event as CustomEvent<{
+        user?:
+          | {
+              user_id?: string
+              email?: string
+              name?: string
+              github_username?: string
+              permission?: number
+            }
+          | null
+      }>
+      const user = customEvent?.detail?.user
+      if (user?.user_id && user.email && user.name && typeof user.permission === "number") {
+        setOAuthUserInfo({
+          user_id: user.user_id,
+          email: user.email,
+          name: user.name,
+          github_username: user.github_username,
+          permission: user.permission,
+        })
+      } else {
+        setOAuthUserInfo(null)
+      }
+    }
+
+    window.addEventListener("ss:oauth-user-updated", handleOAuthUserUpdated as EventListener)
+    return () => {
+      window.removeEventListener(
+        "ss:oauth-user-updated",
+        handleOAuthUserUpdated as EventListener
+      )
+    }
+  }, [])
+
   const showLogs = async () => {
     if (!(window as any).api) return
     setLogsLoading(true)
@@ -1098,17 +1171,13 @@ export const Settings: React.FC<{
                 <div>
                   <Text type="secondary">{t("settings.account.permission")}:</Text>
                   <Tag color="blue" style={{ marginLeft: "8px" }}>
-                    {oauthUserInfo.permission === 1
-                      ? t("permissions.admin")
-                      : oauthUserInfo.permission === 2
-                        ? t("permissions.points")
-                        : t("permissions.view")}
+                    {getOAuthPermissionLabel(oauthUserInfo.permission)}
                   </Tag>
                 </div>
 
                 <Divider />
 
-                <Button danger onClick={() => setOAuthUserInfo(null)}>
+                <Button danger onClick={handleOAuthLogout}>
                   {t("settings.account.logout")}
                 </Button>
               </div>
diff --git a/src/components/StudentManager.tsx b/src/components/StudentManager.tsx
index 5060cf1..99fe008 100644
--- a/src/components/StudentManager.tsx
+++ b/src/components/StudentManager.tsx
@@ -14,7 +14,7 @@ import {
   Select,
 } from "antd"
 import type { ColumnsType } from "antd/es/table"
-import { UploadOutlined, MoreOutlined, PlusOutlined } from "@ant-design/icons"
+import { UploadOutlined, MoreOutlined, PlusOutlined, CopyOutlined } from "@ant-design/icons"
 import { useTranslation } from "react-i18next"
 import { TagEditorDialog } from "./TagEditorDialog"
 import { getAvatarFromExtraJson, setAvatarInExtraJson } from "../utils/studentAvatar"
@@ -720,6 +720,28 @@ export const StudentManager: React.FC<{ canEdit: boolean }> = ({ canEdit }) => {
     }
   }
 
+  const handleAvatarPasteFromClipboard = async () => {
+    if (typeof navigator === "undefined" || !navigator.clipboard?.read) {
+      messageApi.error(t("students.avatarClipboardUnsupported"))
+      return
+    }
+    try {
+      const clipboardItems = await navigator.clipboard.read()
+      for (const item of clipboardItems) {
+        const imageType = item.types.find((type) => type.startsWith("image/"))
+        if (!imageType) continue
+        const blob = await item.getType(imageType)
+        const ext = imageType.split("/")[1] || "png"
+        const file = new File([blob], `avatar-clipboard.${ext}`, { type: imageType })
+        await handleAvatarFileChange(file)
+        return
+      }
+      messageApi.warning(t("students.avatarClipboardNoImage"))
+    } catch {
+      messageApi.error(t("students.avatarClipboardReadFailed"))
+    }
+  }
+
   const handleSaveAvatar = async () => {
     if (!(window as any).api || !avatarStudent) return
 
@@ -2197,6 +2219,13 @@ export const StudentManager: React.FC<{ canEdit: boolean }> = ({ canEdit }) => {
             >
               {t("students.avatarUpload")}
             </Button>
+            <Button
+              icon={<CopyOutlined />}
+              onClick={handleAvatarPasteFromClipboard}
+              disabled={!canEdit}
+            >
+              {t("students.avatarClipboardImport")}
+            </Button>
             <Button onClick={() => setAvatarValue(null)} disabled={!canEdit}>
               {t("students.avatarClear")}
             </Button>
diff --git a/src/i18n/locales/ar-SA.json b/src/i18n/locales/ar-SA.json
index 2ce7d70..b4c19ee 100644
--- a/src/i18n/locales/ar-SA.json
+++ b/src/i18n/locales/ar-SA.json
@@ -430,7 +430,8 @@
     },
     "layoutBy": {
       "grouped": "قائمة مجمعة",
-      "squareGrid": "شبكة مربعة"
+      "squareGrid": "شبكة مربعة",
+      "largeAvatar": "صورة رمزية كبيرة"
     },
     "noStudents": "لا توجد بيانات طلاب، يرجى الإضافة في إدارة الطلاب",
     "noMatch": "لم يتم العثور على طلاب مطابقين",
diff --git a/src/i18n/locales/de-DE.json b/src/i18n/locales/de-DE.json
index 8e56b00..057fbfa 100644
--- a/src/i18n/locales/de-DE.json
+++ b/src/i18n/locales/de-DE.json
@@ -430,7 +430,8 @@
     },
     "layoutBy": {
       "grouped": "Gruppierte Liste",
-      "squareGrid": "Quadratisches Raster"
+      "squareGrid": "Quadratisches Raster",
+      "largeAvatar": "Großer Avatar"
     },
     "noStudents": "Keine Schülerdaten vorhanden, bitte in der Schülerverwaltung hinzufügen",
     "noMatch": "Keine übereinstimmenden Schüler gefunden",
diff --git a/src/i18n/locales/en-US.json b/src/i18n/locales/en-US.json
index 6d9b0dc..3a361a2 100644
--- a/src/i18n/locales/en-US.json
+++ b/src/i18n/locales/en-US.json
@@ -423,7 +423,8 @@
     },
     "layoutBy": {
       "grouped": "Grouped List",
-      "squareGrid": "Square Grid"
+      "squareGrid": "Square Grid",
+      "largeAvatar": "Large Avatar"
     },
     "noStudents": "No student data, please add in Student Management",
     "noMatch": "No matching students found",
@@ -567,7 +568,11 @@
     "avatarSaveFailed": "Failed to save avatar",
     "avatarInvalidFile": "Please choose an image file",
     "avatarTooLarge": "Image must be smaller than 2MB",
-    "avatarReadFailed": "Failed to read image"
+    "avatarReadFailed": "Failed to read image",
+    "avatarClipboardImport": "Import from Clipboard",
+    "avatarClipboardUnsupported": "Clipboard image read is not supported",
+    "avatarClipboardNoImage": "No image found in clipboard",
+    "avatarClipboardReadFailed": "Failed to read clipboard image"
   },
   "score": {
     "title": "Points Management",
@@ -686,7 +691,8 @@
     "viewModes": {
       "list": "List View",
       "card": "Card View",
-      "grid": "Grid View"
+      "grid": "Grid View",
+      "largeAvatar": "Large Avatar"
     },
     "scoreDisplayModes": {
       "total": "Show Total Score",
diff --git a/src/i18n/locales/es-ES.json b/src/i18n/locales/es-ES.json
index 950942d..885ce02 100644
--- a/src/i18n/locales/es-ES.json
+++ b/src/i18n/locales/es-ES.json
@@ -430,7 +430,8 @@
     },
     "layoutBy": {
       "grouped": "Lista agrupada",
-      "squareGrid": "Cuadrícula cuadrada"
+      "squareGrid": "Cuadrícula cuadrada",
+      "largeAvatar": "Avatar grande"
     },
     "noStudents": "Sin datos de estudiantes, por favor añada en gestión de estudiantes",
     "noMatch": "Sin estudiantes coincidentes encontrados",
diff --git a/src/i18n/locales/fr-FR.json b/src/i18n/locales/fr-FR.json
index c30d1e3..a109cd7 100644
--- a/src/i18n/locales/fr-FR.json
+++ b/src/i18n/locales/fr-FR.json
@@ -430,7 +430,8 @@
     },
     "layoutBy": {
       "grouped": "Liste groupée",
-      "squareGrid": "Grille carrée"
+      "squareGrid": "Grille carrée",
+      "largeAvatar": "Grand avatar"
     },
     "noStudents": "Aucune donnée d'élève, veuillez ajouter dans la gestion des élèves",
     "noMatch": "Aucun élève correspondant trouvé",
diff --git a/src/i18n/locales/ja-JP.json b/src/i18n/locales/ja-JP.json
index 15ee239..92b7750 100644
--- a/src/i18n/locales/ja-JP.json
+++ b/src/i18n/locales/ja-JP.json
@@ -430,7 +430,8 @@
     },
     "layoutBy": {
       "grouped": "グループリスト",
-      "squareGrid": "正方形グリッド"
+      "squareGrid": "正方形グリッド",
+      "largeAvatar": "大型アバター"
     },
     "noStudents": "生徒データがありません。生徒管理で追加してください",
     "noMatch": "一致する生徒が見つかりません",
@@ -574,7 +575,11 @@
     "avatarSaveFailed": "アバターの保存に失敗しました",
     "avatarInvalidFile": "画像ファイルを選択してください",
     "avatarTooLarge": "画像は2MB以下にしてください",
-    "avatarReadFailed": "画像の読み取りに失敗しました"
+    "avatarReadFailed": "画像の読み取りに失敗しました",
+    "avatarClipboardImport": "クリップボードから取り込み",
+    "avatarClipboardUnsupported": "この環境ではクリップボード画像を読み取れません",
+    "avatarClipboardNoImage": "クリップボードに画像がありません",
+    "avatarClipboardReadFailed": "クリップボード画像の読み取りに失敗しました"
   },
   "score": {
     "title": "ポイント管理",
@@ -693,7 +698,8 @@
     "viewModes": {
       "list": "リスト表示",
       "card": "カード表示",
-      "grid": "グリッド表示"
+      "grid": "グリッド表示",
+      "largeAvatar": "大型アバター表示"
     },
     "scoreDisplayModes": {
       "total": "合計スコアを表示",
diff --git a/src/i18n/locales/ko-KR.json b/src/i18n/locales/ko-KR.json
index 1cfdb4d..eda9ef7 100644
--- a/src/i18n/locales/ko-KR.json
+++ b/src/i18n/locales/ko-KR.json
@@ -430,7 +430,8 @@
     },
     "layoutBy": {
       "grouped": "그룹화된 목록",
-      "squareGrid": "정사각형 그리드"
+      "squareGrid": "정사각형 그리드",
+      "largeAvatar": "대형 아바타"
     },
     "noStudents": "학생 데이터가 없습니다. 학생 관리에서 추가해 주세요",
     "noMatch": "일치하는 학생이 없습니다",
diff --git a/src/i18n/locales/pt-BR.json b/src/i18n/locales/pt-BR.json
index 8fea588..62655ab 100644
--- a/src/i18n/locales/pt-BR.json
+++ b/src/i18n/locales/pt-BR.json
@@ -430,7 +430,8 @@
     },
     "layoutBy": {
       "grouped": "Lista agrupada",
-      "squareGrid": "Grade quadrada"
+      "squareGrid": "Grade quadrada",
+      "largeAvatar": "Avatar grande"
     },
     "noStudents": "Sem dados de alunos, por favor adicione em gerenciamento de alunos",
     "noMatch": "Nenhum aluno correspondente encontrado",
diff --git a/src/i18n/locales/ru-RU.json b/src/i18n/locales/ru-RU.json
index 536ff1f..c014c3e 100644
--- a/src/i18n/locales/ru-RU.json
+++ b/src/i18n/locales/ru-RU.json
@@ -430,7 +430,8 @@
     },
     "layoutBy": {
       "grouped": "Группированный список",
-      "squareGrid": "Квадратная сетка"
+      "squareGrid": "Квадратная сетка",
+      "largeAvatar": "Большой аватар"
     },
     "noStudents": "Нет данных о студентах, пожалуйста, добавьте в управлении студентами",
     "noMatch": "Нет совпадающих студентов",
diff --git a/src/i18n/locales/zh-CN.json b/src/i18n/locales/zh-CN.json
index d2ad8ba..52dc263 100644
--- a/src/i18n/locales/zh-CN.json
+++ b/src/i18n/locales/zh-CN.json
@@ -423,7 +423,8 @@
     },
     "layoutBy": {
       "grouped": "分组列表",
-      "squareGrid": "正方形网格"
+      "squareGrid": "正方形网格",
+      "largeAvatar": "大头像"
     },
     "noStudents": "暂无学生数据，请前往学生管理添加",
     "noMatch": "未找到匹配的学生",
@@ -567,7 +568,11 @@
     "avatarSaveFailed": "头像保存失败",
     "avatarInvalidFile": "请选择图片文件",
     "avatarTooLarge": "图片不能超过 2MB",
-    "avatarReadFailed": "读取图片失败"
+    "avatarReadFailed": "读取图片失败",
+    "avatarClipboardImport": "从剪贴板导入",
+    "avatarClipboardUnsupported": "当前环境不支持读取剪贴板图片",
+    "avatarClipboardNoImage": "剪贴板中没有图片",
+    "avatarClipboardReadFailed": "读取剪贴板图片失败"
   },
   "score": {
     "title": "积分管理",
@@ -686,7 +691,8 @@
     "viewModes": {
       "list": "列表视图",
       "card": "卡片视图",
-      "grid": "网格视图"
+      "grid": "网格视图",
+      "largeAvatar": "大头像视图"
     },
     "scoreDisplayModes": {
       "total": "显示总分",