diff --git a/vehicle-data-platform/apps/web/src/v2/layout/AppShell.test.tsx b/vehicle-data-platform/apps/web/src/v2/layout/AppShell.test.tsx
index a1c4feb7..bf37eaec 100644
--- a/vehicle-data-platform/apps/web/src/v2/layout/AppShell.test.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/layout/AppShell.test.tsx
@@ -187,6 +187,10 @@ test('uses the compact mobile navigation and opens secondary modules in a Semi S
 
   const moreSheet = screen.getByRole('dialog', { name: '更多功能' });
   expect(moreSheet).toHaveTextContent('数据分析与系统管理');
+  expect(screen.getByRole('navigation', { name: '分析与处置' })).toBeInTheDocument();
+  expect(screen.getByRole('navigation', { name: '平台治理' })).toBeInTheDocument();
+  expect(moreSheet).toHaveTextContent('历史证据与业务告警');
+  expect(moreSheet).toHaveTextContent('接入、账号与运维质量');
   expect(screen.getByRole('link', { name: '历史数据' })).toBeInTheDocument();
   expect(screen.getByRole('link', { name: '告警中心' })).toBeInTheDocument();
   expect(screen.getByRole('link', { name: '接入管理' })).toBeInTheDocument();
diff --git a/vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx b/vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx
index fba01eb1..da1b79b7 100644
--- a/vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx
@@ -251,23 +251,60 @@ function PasswordDialog({ onClose, onChanged }: { onClose: () => void; onChanged
 }
 
 const mobilePrimaryNavigation = [navigation[0], navigation[1], navigation[2], navigation[4]];
-const mobileMoreNavigation = [navigation[3], navigation[5], navigation[6], navigation[7], { to: '/operations', menu: 'operations', label: '运维质量', icon: IconSetting }];
+const operationsNavigation = { to: '/operations', menu: 'operations', label: '运维质量', icon: IconSetting };
+const mobileMoreGroups = [
+  {
+    key: 'insight',
+    title: '分析与处置',
+    description: '历史证据与业务告警',
+    items: [navigation[3], navigation[5]]
+  },
+  {
+    key: 'governance',
+    title: '平台治理',
+    description: '接入、账号与运维质量',
+    items: [navigation[6], navigation[7], operationsNavigation]
+  }
+];
+const mobileMoreNavigation = mobileMoreGroups.flatMap((group) => group.items);
 
 function MobileNavigation() {
   const location = useLocation();
   const { session } = usePlatformSession();
   const [moreOpen, setMoreOpen] = useState(false);
   const primary = mobilePrimaryNavigation.filter((item) => hasMenu(session, item.menu));
-  const more = mobileMoreNavigation.filter((item) => hasMenu(session, item.menu));
+  const moreGroups = mobileMoreGroups
+    .map((group) => ({ ...group, items: group.items.filter((item) => hasMenu(session, item.menu)) }))
+    .filter((group) => group.items.length > 0);
+  const more = moreGroups.flatMap((group) => group.items);
   const moreActive = more.some((item) => location.pathname.startsWith(item.to));
   const itemCount = primary.length + (more.length ? 1 : 0);
   const warmRoute = (path: string) => { if (shouldPreloadRouteOnIntent()) void preloadRoute(path); };
   useEffect(() => setMoreOpen(false), [location.pathname]);
   useSideSheetA11y(moreOpen, '.v2-mobile-more-sidesheet', 'v2-mobile-more', '更多功能', '关闭更多功能');
 
-  const link = ({ to, label, icon: Icon }: (typeof navigation)[number]) => <NavLink key={to} to={to} aria-label={label} onPointerDown={() => warmRoute(to)} className={({ isActive }) => `v2-mobile-nav-item ${isActive ? 'is-active' : ''}`}><Icon size="large" /><span>{label}</span></NavLink>;
+  const link = ({ to, label, icon: Icon }: (typeof mobileMoreNavigation)[number]) => <NavLink key={to} to={to} aria-label={label} onPointerDown={() => warmRoute(to)} className={({ isActive }) => `v2-mobile-nav-item ${isActive ? 'is-active' : ''}`}><Icon size="large" /><span>{label}</span></NavLink>;
   return <>
-    {more.length ? <SideSheet className="v2-mobile-more-sidesheet" visible={moreOpen} placement="bottom" height="auto" title={<div><strong>更多功能</strong><span>数据分析与系统管理</span></div>} aria-label="更多功能" footer={null} onCancel={() => setMoreOpen(false)}><nav>{more.map(link)}</nav></SideSheet> : null}
+    {more.length ? <SideSheet
+      className="v2-mobile-more-sidesheet"
+      visible={moreOpen}
+      placement="bottom"
+      height="auto"
+      title={<div><strong>更多功能</strong><span>数据分析与系统管理</span></div>}
+      aria-label="更多功能"
+      footer={null}
+      onCancel={() => setMoreOpen(false)}
+    >
+      <div className="v2-mobile-more-groups">
+        {moreGroups.map((group) => <section className="v2-mobile-more-section" key={group.key} aria-labelledby={`v2-mobile-more-${group.key}`}>
+          <header>
+            <div><strong id={`v2-mobile-more-${group.key}`}>{group.title}</strong><span>{group.description}</span></div>
+            <Tag size="small" color="blue">{group.items.length} 项</Tag>
+          </header>
+          <nav aria-label={group.title}>{group.items.map(link)}</nav>
+        </section>)}
+      </div>
+    </SideSheet> : null}
     <nav className="v2-mobile-navigation" aria-label="主导航" style={{ '--v2-mobile-nav-count': Math.max(itemCount, 1) } as CSSProperties}>
       {primary.map(link)}
       {more.length ? <Button theme="borderless" className={`v2-mobile-nav-item${moreActive ? ' is-active' : ''}`} aria-label="更多功能" aria-expanded={moreOpen} aria-controls="v2-mobile-more" icon={<IconMore size="large" />} onClick={() => setMoreOpen((value) => !value)}><span>更多</span></Button> : null}
diff --git a/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts b/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
index bb3b5b8e..cc981285 100644
--- a/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
+++ b/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
@@ -532,7 +532,7 @@ describe('V2 production entry', () => {
   test('keeps the shared desktop and mobile application shell on Semi UI navigation primitives', () => {
     expect(appShellSource).toContain('<Layout className="v2-shell">');
     expect(appShellSource).toContain('<Nav className="v2-navigation"');
-    expect(appShellSource).toContain('<SideSheet className="v2-mobile-more-sidesheet"');
+    expect(appShellSource).toContain('className="v2-mobile-more-sidesheet"');
     expect(appShellSource).toContain('className="v2-password-modal"');
     expect(appShellSource.match(/<PasswordInput/g)).toHaveLength(3);
     expect(authGateSource.match(/<PasswordInput/g)).toHaveLength(2);
@@ -541,6 +541,12 @@ describe('V2 production entry', () => {
     expect(passwordInputSource).toContain("`${visible ? '隐藏' : '显示'}${visibilityLabel}`");
     expect(workspaceStyles).toContain('.v2-password-modal .semi-modal {');
     expect(workspaceStyles).not.toContain('.v2-password-modal.semi-modal {');
+    expect(appShellSource).toContain('className="v2-mobile-more-groups"');
+    expect(appShellSource).toContain("title: '分析与处置'");
+    expect(appShellSource).toContain("title: '平台治理'");
+    expect(workspaceStyles).toContain('.v2-mobile-more-section > header {');
+    expect(workspaceStyles).toContain('.v2-auth-form-heading {');
+    expect(workspaceStyles).toContain('grid-template-columns: minmax(190px, .58fr) minmax(0, 1fr);');
     expect(appShellSource).not.toContain('v2-mobile-more-backdrop');
     expect(appShellSource).not.toContain('v2-mobile-more-sheet');
   });
diff --git a/vehicle-data-platform/apps/web/src/v2/styles/workspace.css b/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
index 0dcaee7d..d07a740d 100644
--- a/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
+++ b/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
@@ -18,6 +18,374 @@
   padding: 8px 14px;
 }
 
+/*
+ * Global short-landscape entry and navigation.
+ * Keep every authentication action in the first viewport, preserve practical
+ * touch targets, and group secondary destinations by the task they support.
+ */
+@media (max-width: 900px) and (max-height: 480px) and (orientation: landscape) {
+  :root .v2-auth-screen:not(.is-session-loading) {
+    display: grid;
+    min-height: 100dvh;
+    grid-template-columns: minmax(0, 1fr);
+    place-items: center;
+    overflow: hidden;
+    padding: 8px;
+  }
+
+  :root .v2-auth-screen:not(.is-session-loading) > .v2-auth-card.semi-card {
+    width: min(650px, calc(100vw - 16px));
+    height: min(359px, calc(100dvh - 16px));
+    max-height: calc(100dvh - 16px);
+    justify-self: center;
+    overflow: hidden;
+    border-radius: 16px;
+  }
+
+  :root .v2-auth-screen:not(.is-session-loading) > .v2-auth-card.semi-card > .semi-card-body {
+    height: 100%;
+  }
+
+  :root .v2-auth-form {
+    display: grid;
+    height: 100%;
+    min-height: 0;
+    grid-template-columns: minmax(190px, .58fr) minmax(0, 1fr);
+    grid-template-rows: auto auto auto auto;
+    align-content: center;
+    column-gap: 18px;
+    padding: 12px 18px;
+  }
+
+  :root .v2-auth-form-heading {
+    min-width: 0;
+    grid-column: 1;
+    grid-row: 1 / -1;
+    align-content: center;
+    justify-items: start;
+    border-right: 1px solid #e7edf5;
+    padding-right: 18px;
+  }
+
+  :root .v2-auth-logo {
+    width: 118px;
+    margin: 0 0 13px;
+  }
+
+  :root .v2-auth-form-heading > .semi-tag {
+    height: 22px;
+    margin: 0 0 9px;
+    padding-inline: 7px;
+    font-size: 8px;
+  }
+
+  :root .v2-auth-form-heading > h3.semi-typography {
+    margin: 0;
+    text-align: left;
+    font-size: 18px;
+    line-height: 1.25;
+  }
+
+  :root .v2-auth-form-heading > h3 + .semi-typography {
+    max-width: 170px;
+    margin: 7px 0 0;
+    text-align: left;
+    font-size: 9px;
+    line-height: 1.55;
+  }
+
+  :root .v2-auth-mode-tabs {
+    min-width: 0;
+    grid-column: 2;
+    grid-row: 1;
+    align-self: center;
+    margin-top: 0;
+  }
+
+  :root .v2-auth-mode-tabs > .semi-tabs-bar {
+    padding: 3px;
+  }
+
+  :root .v2-auth-mode-tabs > .semi-tabs-bar .semi-tabs-tab {
+    height: 32px;
+    font-size: 10px;
+  }
+
+  :root .v2-auth-fields {
+    min-height: 0;
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+    gap: 10px;
+  }
+
+  :root .v2-auth-fields > label {
+    min-width: 0;
+    gap: 4px;
+    margin-top: 9px;
+    font-size: 9px;
+  }
+
+  :root .v2-auth-fields > label .semi-input-wrapper {
+    height: 40px;
+    border-radius: 9px;
+  }
+
+  :root .v2-auth-token-note.semi-banner {
+    min-width: 0;
+    margin-top: 9px;
+    padding: 6px 7px;
+  }
+
+  :root .v2-auth-token-note .semi-banner-description {
+    display: -webkit-box;
+    overflow: hidden;
+    -webkit-box-orient: vertical;
+    -webkit-line-clamp: 2;
+  }
+
+  :root .v2-auth-error {
+    min-width: 0;
+    grid-column: 2;
+    grid-row: 2;
+    margin-top: 6px;
+  }
+
+  :root .v2-auth-error .semi-banner {
+    padding: 6px 8px;
+  }
+
+  :root .v2-auth-error .semi-banner-description {
+    margin-top: 1px;
+    line-height: 1.35;
+  }
+
+  :root .v2-auth-form > .semi-button-primary,
+  :root .v2-auth-form > .v2-auth-error + .semi-button-primary {
+    height: 40px;
+    grid-column: 2;
+    grid-row: 3;
+    margin-top: 8px;
+    border-radius: 9px;
+    font-size: 11px;
+  }
+
+  :root .v2-auth-trust-note {
+    min-height: 18px;
+    grid-column: 2;
+    grid-row: 4;
+    margin-top: 3px;
+  }
+
+  :root .v2-auth-trust-note > .semi-typography {
+    font-size: 8px;
+  }
+
+  :root .v2-auth-screen.is-session-loading {
+    min-height: 100dvh;
+    place-items: center;
+    overflow: hidden;
+    padding: 8px;
+  }
+
+  :root .v2-auth-loading.semi-card {
+    width: min(650px, calc(100vw - 16px));
+    max-height: calc(100dvh - 16px);
+  }
+
+  :root .v2-auth-loading-inner {
+    grid-template-columns: minmax(180px, .58fr) minmax(0, 1fr);
+    align-items: center;
+    gap: 10px 18px;
+    padding: 16px 18px;
+  }
+
+  :root .v2-auth-loading-header {
+    height: 100%;
+    grid-column: 1;
+    grid-row: 1 / 4;
+    align-content: center;
+    align-items: flex-start;
+    justify-content: center;
+    flex-direction: column;
+    border-right: 1px solid #e7edf5;
+    border-bottom: 0;
+    padding: 0 18px 0 0;
+  }
+
+  :root .v2-auth-loading-header > img {
+    max-width: 128px;
+  }
+
+  :root .v2-auth-loading-status,
+  :root .v2-auth-loading-skeleton,
+  :root .v2-auth-loading-inner > footer {
+    grid-column: 2;
+  }
+
+  :root .v2-auth-loading-skeleton {
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+  }
+
+  :root .v2-auth-loading-skeleton > i,
+  :root .v2-auth-loading-skeleton > i:last-child {
+    min-height: 38px;
+    grid-column: auto;
+  }
+
+  :root .v2-auth-loading-inner > footer {
+    padding-top: 10px;
+  }
+
+  :root .v2-topbar {
+    height: 48px;
+    flex-basis: 48px;
+    padding-inline: 10px 6px;
+  }
+
+  :root .v2-topbar-title > .v2-topbar-page-title.semi-typography {
+    font-size: 15px;
+  }
+
+  :root .v2-topbar-actions > .v2-help-trigger.semi-button,
+  :root .v2-topbar-actions > .v2-current-user.semi-button {
+    width: 36px;
+    min-width: 36px;
+    height: 36px;
+  }
+
+  :root .v2-main,
+  :root .v2-sidebar.is-collapsed + .v2-main {
+    padding-bottom: calc(56px + env(safe-area-inset-bottom));
+  }
+
+  :root .v2-mobile-navigation {
+    height: calc(56px + env(safe-area-inset-bottom));
+    padding: 3px 5px calc(3px + env(safe-area-inset-bottom));
+  }
+
+  :root .v2-mobile-navigation .v2-mobile-nav-item,
+  :root .v2-mobile-navigation > .semi-button.v2-mobile-nav-item {
+    min-height: 48px;
+    gap: 1px;
+  }
+
+  :root .v2-mobile-navigation .v2-mobile-nav-item > .semi-icon,
+  :root .v2-mobile-navigation > .semi-button.v2-mobile-nav-item .semi-icon {
+    width: 30px;
+    height: 24px;
+    font-size: 17px;
+  }
+
+  :root .v2-mobile-navigation .v2-mobile-nav-item > span,
+  :root .v2-mobile-navigation > .semi-button.v2-mobile-nav-item .semi-button-content {
+    font-size: 9px;
+  }
+
+  :root .v2-mobile-more-sidesheet .semi-sidesheet-header {
+    min-height: 54px;
+    padding: 9px 14px 8px;
+  }
+
+  :root .v2-mobile-more-sidesheet .semi-sidesheet-body {
+    padding: 8px 10px 10px;
+  }
+
+  :root .v2-mobile-more-sidesheet .semi-sidesheet-title strong {
+    font-size: 15px;
+  }
+
+  :root .v2-mobile-more-sidesheet .semi-sidesheet-title span {
+    font-size: 9px;
+  }
+
+  :root .v2-mobile-more-groups {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+    gap: 8px;
+  }
+
+  :root .v2-mobile-more-section > header {
+    min-height: 40px;
+    padding: 7px 8px 6px;
+  }
+
+  :root .v2-mobile-more-section > nav {
+    min-height: 0;
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+    gap: 5px;
+    padding: 6px;
+  }
+
+  :root .v2-mobile-more-section:first-child > nav {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
+
+  :root .v2-mobile-more-sidesheet .v2-mobile-more-section .v2-mobile-nav-item {
+    min-height: 60px;
+  }
+}
+
+@media (max-width: 680px) {
+  .v2-mobile-more-groups {
+    display: grid;
+    gap: 10px;
+  }
+
+  .v2-mobile-more-section {
+    min-width: 0;
+    overflow: hidden;
+    border: 1px solid #e4eaf2;
+    border-radius: 13px;
+    background: #fbfcfe;
+  }
+
+  .v2-mobile-more-section > header {
+    display: flex;
+    min-height: 48px;
+    align-items: center;
+    justify-content: space-between;
+    gap: 10px;
+    border-bottom: 1px solid #e8edf4;
+    padding: 9px 10px 8px;
+  }
+
+  .v2-mobile-more-section > header > div {
+    display: grid;
+    min-width: 0;
+    gap: 2px;
+  }
+
+  .v2-mobile-more-section > header strong {
+    color: #2a3c53;
+    font-size: 11px;
+    font-weight: 750;
+  }
+
+  .v2-mobile-more-section > header span {
+    overflow: hidden;
+    color: #8a97a9;
+    font-size: 8px;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+
+  .v2-mobile-more-section > header > .semi-tag {
+    flex: 0 0 auto;
+    border-radius: 999px;
+    font-size: 8px;
+  }
+
+  .v2-mobile-more-section > nav {
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+    gap: 6px;
+    padding: 8px;
+  }
+
+  .v2-mobile-more-sidesheet .v2-mobile-more-section .v2-mobile-nav-item {
+    min-height: 68px;
+    border-color: #e7ecf3;
+    background: #fff;
+  }
+}
+
 /*
  * Short landscape operations cockpit.
  * Treat the command bar and workspace switcher as one compact control rail,