diff --git a/src/renderer/src/components/AppDetail/AppDetail.tsx b/src/renderer/src/components/AppDetail/AppDetail.tsx
index a9447ea..8433fed 100644
--- a/src/renderer/src/components/AppDetail/AppDetail.tsx
+++ b/src/renderer/src/components/AppDetail/AppDetail.tsx
@@ -17,8 +17,7 @@ import {
   ArrowLeft,
 } from "lucide-react";
 import { createStyles } from "antd-style";
-import { useAppStore } from "@renderer/stores";
-import { useDomainStore } from "@renderer/stores";
+import { useAppStore, useDomainStore, useSessionStore } from "@renderer/stores";
 import { CodeViewer } from "../CodeViewer";
 import { FileConfigResponse, isFileResource } from "@shared/types/kintone";
 import { getDisplayName, getFileKey } from "@shared/utils/fileDisplay";
@@ -51,6 +50,7 @@ const useStyles = createStyles(({ token, css }) => ({
     flex: 1;
     overflow: auto;
     padding: ${token.paddingMD}px;
+    padding-top: ${token.paddingXS}px;
   `,
   loading: css`
     display: flex;
@@ -129,8 +129,9 @@ const useStyles = createStyles(({ token, css }) => ({
   `,
   // Back button - no border, left aligned with text
   backButton: css`
-    padding: 0;
-    margin-bottom: ${token.marginMD}px;
+    padding: ${token.marginSM}px 0;
+    padding-left: ${token.marginXS}px;
+    margin-bottom: ${token.marginXS}px;
     display: flex;
     align-items: center;
     justify-content: flex-start;
@@ -152,14 +153,7 @@ const AppDetail: React.FC = () => {
   const { currentDomain } = useDomainStore();
   const { currentApp, selectedAppId, loading, setCurrentApp, setLoading } =
     useAppStore();
-
-  // View mode: 'list' shows file sections, 'code' shows code viewer
-  const [viewMode, setViewMode] = React.useState<"list" | "code">("list");
-  const [selectedFile, setSelectedFile] = React.useState<{
-    type: "js" | "css";
-    fileKey: string;
-    name: string;
-  } | null>(null);
+  const { viewMode, selectedFile, setViewMode, setSelectedFile } = useSessionStore();
 
   // Download state: track which file is being downloaded
   const [downloadingKey, setDownloadingKey] = React.useState<string | null>(
@@ -463,7 +457,7 @@ const AppDetail: React.FC = () => {
         <div className={styles.title}>
           <LayoutGrid size={24} style={{ color: "#1890ff" }} />
           <h3 className={styles.appName}>{currentApp.name}</h3>
-          <Tag color="blue">{currentApp.appId}</Tag>
+          <Tag>ID: {currentApp.appId}</Tag>
         </div>
         <Space>
           <Button icon={<History size={16} />}>
diff --git a/src/renderer/src/components/AppList/AppList.tsx b/src/renderer/src/components/AppList/AppList.tsx
index 2171b51..3351f68 100644
--- a/src/renderer/src/components/AppList/AppList.tsx
+++ b/src/renderer/src/components/AppList/AppList.tsx
@@ -59,34 +59,6 @@ const useStyles = createStyles(({ token, css }) => ({
     align-items: center;
     height: 300px;
   `,
-  listItemMotion: css`
-    cursor: pointer;
-    padding: ${token.paddingSM}px ${token.paddingMD}px !important;
-    border-bottom: 1px solid ${token.colorBorderSecondary} !important;
-    position: relative;
-
-    &:hover {
-      background: ${token.colorBgTextHover};
-    }
-  `,
-  listItemActive: css`
-    background: ${token.colorPrimaryBgHover} !important;
-    border-left: 3px solid ${token.colorPrimary} !important;
-  `,
-  listItemPinned: css`
-    background: ${token.colorWarningBg} !important;
-
-    &:hover {
-      background: ${token.colorWarningBgHover} !important;
-    }
-  `,
-  appName: css`
-    font-weight: 500;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    white-space: nowrap;
-    flex: 1;
-  `,
   appId: css`
     font-family: monospace;
     font-size: 12px;
@@ -105,54 +77,6 @@ const useStyles = createStyles(({ token, css }) => ({
     color: ${token.colorTextSecondary};
     font-size: 12px;
   `,
-  appInfoWrapper: css`
-    display: flex;
-    align-items: center;
-    gap: ${token.paddingSM}px;
-    flex: 1;
-    min-width: 0;
-    position: relative;
-  `,
-  iconWrapper: css`
-    position: relative;
-    width: 20px;
-    height: 20px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    flex-shrink: 0;
-  `,
-  pinOverlay: css`
-    position: absolute;
-    top: 0;
-    left: 0;
-    width: 20px;
-    height: 20px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    opacity: 0;
-    transition: opacity 0.15s ease;
-    z-index: 1;
-  `,
-  pinOverlayVisible: css`
-    opacity: 1;
-  `,
-  pinButton: css`
-    color: ${token.colorTextTertiary};
-    cursor: pointer;
-    font-size: 14px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-
-    &:hover {
-      color: ${token.colorWarning};
-    }
-  `,
-  pinButtonPinned: css`
-    color: ${token.colorWarning};
-  `,
 }));
 
 const AppList: React.FC = () => {
@@ -374,7 +298,6 @@ const AppList: React.FC = () => {
               isPinned={currentPinnedApps.includes(app.appId)}
               onItemClick={handleItemClick}
               onPinToggle={handlePinToggle}
-              styles={styles}
               t={t}
             />
           ))
diff --git a/src/renderer/src/components/AppList/AppListItem.tsx b/src/renderer/src/components/AppList/AppListItem.tsx
index e1db581..8825463 100644
--- a/src/renderer/src/components/AppList/AppListItem.tsx
+++ b/src/renderer/src/components/AppList/AppListItem.tsx
@@ -5,81 +5,89 @@
 
 import React from "react";
 import { motion } from "motion/react";
-import { Typography } from "antd";
-import { Tooltip } from "@lobehub/ui";
+import { Tooltip, Tag } from "@lobehub/ui";
 import { Pin, LayoutGrid } from "lucide-react";
+import { createStyles } from "antd-style";
 import type { AppDetail } from "@shared/types/kintone";
 
-const { Text } = Typography;
+const useStyles = createStyles(({ token, css }) => ({
+  listItemMotion: css`
+    cursor: pointer;
+    padding: ${token.paddingSM}px ${token.paddingMD}px !important;
+    border-bottom: 1px solid ${token.colorBorderSecondary} !important;
+    position: relative;
 
-// Styles for AppListItem - defined inline to be self-contained
-const listItemStyles = {
-  listItemMotion: {
-    cursor: "pointer",
-    padding: "8px 16px !important",
-    borderBottom:
-      "1px solid var(--ant-color-border-secondary, #f0f0f0) !important",
-    position: "relative" as const,
-  },
-  listItemActive: {
-    background: "var(--ant-color-primary-bg-hover, #e6f7ff) !important",
-    borderLeft: "3px solid var(--ant-color-primary, #1890ff) !important",
-  },
-  listItemPinned: {
-    background: "var(--ant-color-warning-bg, #fffbe6) !important",
-  },
-  appInfoWrapper: {
-    display: "flex",
-    alignItems: "center",
-    gap: "8px",
-    flex: 1,
-    minWidth: 0,
-    position: "relative" as const,
-  },
-  iconWrapper: {
-    position: "relative" as const,
-    width: "20px",
-    height: "20px",
-    display: "flex",
-    alignItems: "center",
-    justifyContent: "center",
-    flexShrink: 0,
-  },
-  pinOverlay: {
-    position: "absolute" as const,
-    top: 0,
-    left: 0,
-    width: "20px",
-    height: "20px",
-    display: "flex",
-    alignItems: "center",
-    justifyContent: "center",
-    opacity: 0,
-    transition: "opacity 0.15s ease",
-    zIndex: 1,
-  },
-  appName: {
-    fontWeight: 500,
-    overflow: "hidden",
-    textOverflow: "ellipsis",
-    whiteSpace: "nowrap",
-    flex: 1,
-  },
-  appId: {
-    fontFamily: "monospace",
-    fontSize: "12px",
-    color: "var(--ant-color-text-secondary, #8c8c8c)",
-    flexShrink: 0,
-  },
-  pinButton: {
-    color: "var(--ant-color-text-tertiary, #bfbfbf)",
-    cursor: "pointer",
-    fontSize: "14px",
-    display: "flex",
-    alignItems: "center",
-    justifyContent: "center",
-  },
-};
+    &:hover {
+      background: ${token.colorBgTextHover};
+    }
+  `,
+  listItemActive: css`
+    background: ${token.colorPrimaryBgHover} !important;
+    border-left: 3px solid ${token.colorPrimary} !important;
+  `,
+  listItemPinned: css`
+    background: ${token.colorWarningBg} !important;
+
+    &:hover {
+      background: ${token.colorWarningBgHover} !important;
+    }
+  `,
+  appInfoWrapper: css`
+    display: flex;
+    align-items: center;
+    gap: ${token.paddingSM}px;
+    flex: 1;
+    min-width: 0;
+    position: relative;
+  `,
+  iconWrapper: css`
+    position: relative;
+    width: 20px;
+    height: 20px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    flex-shrink: 0;
+  `,
+  pinOverlay: css`
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 20px;
+    height: 20px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    opacity: 0;
+    transition: opacity 0.15s ease;
+    z-index: 1;
+  `,
+  pinOverlayVisible: css`
+    opacity: 1;
+  `,
+  appName: css`
+    font-weight: 500;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    flex: 1;
+  `,
+  pinButton: css`
+    color: ${token.colorTextTertiary};
+    cursor: pointer;
+    font-size: 14px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+
+    &:hover {
+      color: ${token.colorWarning};
+    }
+  `,
+  pinButtonPinned: css`
+    color: ${token.colorWarning};
+  `,
+}));
 
 export interface AppListItemProps {
   app: AppDetail;
@@ -88,19 +96,6 @@ export interface AppListItemProps {
   onItemClick: (app: AppDetail) => void;
   onPinToggle: (e: React.MouseEvent, appId: string) => void;
   t: (key: string) => string;
-  styles: {
-    listItemMotion: string;
-    listItemActive: string;
-    listItemPinned: string;
-    appInfoWrapper: string;
-    iconWrapper: string;
-    pinOverlay: string;
-    pinOverlayVisible: string;
-    pinButton: string;
-    pinButtonPinned: string;
-    appName: string;
-    appId: string;
-  };
 }
 
 const AppListItem: React.FC<AppListItemProps> = ({
@@ -109,9 +104,9 @@ const AppListItem: React.FC<AppListItemProps> = ({
   isPinned,
   onItemClick,
   onPinToggle,
-  styles,
   t,
 }) => {
+  const { styles } = useStyles();
   const [isHovered, setIsHovered] = React.useState(false);
 
   // Pin overlay is visible when:
@@ -155,9 +150,7 @@ const AppListItem: React.FC<AppListItemProps> = ({
         <Tooltip title={app.name}>
           <span className={styles.appName}>{app.name}</span>
         </Tooltip>
-        <Text code className={styles.appId}>
-          ID: {app.appId}
-        </Text>
+        <Tag>ID: {app.appId}</Tag>
       </div>
     </motion.div>
   );
diff --git a/src/renderer/src/stores/appStore.ts b/src/renderer/src/stores/appStore.ts
index 91ea77d..7d71561 100644
--- a/src/renderer/src/stores/appStore.ts
+++ b/src/renderer/src/stores/appStore.ts
@@ -98,6 +98,7 @@ export const useAppStore = create<AppState>()(
       partialize: (state) => ({
         apps: state.apps,
         loadedAt: state.loadedAt,
+        selectedAppId: state.selectedAppId,
       }),
     },
   ),
diff --git a/src/renderer/src/stores/index.ts b/src/renderer/src/stores/index.ts
index 1aa7286..636de9d 100644
--- a/src/renderer/src/stores/index.ts
+++ b/src/renderer/src/stores/index.ts
@@ -7,5 +7,6 @@ export { useDomainStore } from "./domainStore";
 export { useAppStore } from "./appStore";
 export { useDeployStore } from "./deployStore";
 export { useVersionStore } from "./versionStore";
-
-export { useUIStore } from "./uiStore";
\ No newline at end of file
+export { useUIStore } from "./uiStore";
+export { useSessionStore } from "./sessionStore";
+export type { ViewMode, SelectedFile } from "./sessionStore";
\ No newline at end of file
diff --git a/src/renderer/src/stores/sessionStore.ts b/src/renderer/src/stores/sessionStore.ts
new file mode 100644
index 0000000..d3a3060
--- /dev/null
+++ b/src/renderer/src/stores/sessionStore.ts
@@ -0,0 +1,54 @@
+/**
+ * Session Store
+ * Manages temporary session state that should persist across app restarts
+ * Stored in localStorage - no need for file-based persistence
+ */
+
+import { create } from "zustand";
+import { persist } from "zustand/middleware";
+
+export type ViewMode = "list" | "code";
+
+export interface SelectedFile {
+  type: "js" | "css";
+  fileKey: string;
+  name: string;
+}
+
+interface SessionState {
+  // View state
+  viewMode: ViewMode;
+  selectedFile: SelectedFile | null;
+
+  // Actions
+  setViewMode: (mode: ViewMode) => void;
+  setSelectedFile: (file: SelectedFile | null) => void;
+  resetViewState: () => void;
+}
+
+const initialState = {
+  viewMode: "list" as ViewMode,
+  selectedFile: null as SelectedFile | null,
+};
+
+export const useSessionStore = create<SessionState>()(
+  persist(
+    (set) => ({
+      ...initialState,
+
+      setViewMode: (viewMode) => set({ viewMode }),
+
+      setSelectedFile: (selectedFile) => set({ selectedFile }),
+
+      resetViewState: () => set(initialState),
+    }),
+    {
+      name: "session-storage",
+      // Only persist view state, not transient data
+      partialize: (state) => ({
+        viewMode: state.viewMode,
+        selectedFile: state.selectedFile,
+      }),
+    },
+  ),
+);