diff --git a/vehicle-data-platform/apps/web/src/v2/auth/AuthGate.tsx b/vehicle-data-platform/apps/web/src/v2/auth/AuthGate.tsx
index df1e6665..d9459503 100644
--- a/vehicle-data-platform/apps/web/src/v2/auth/AuthGate.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/auth/AuthGate.tsx
@@ -3,6 +3,7 @@ import { useQuery, useQueryClient } from '@tanstack/react-query';
 import { Banner, Button, Card, Input, Spin, Tabs, Tag, Typography } from '@douyinfe/semi-ui';
 import { FormEvent, ReactNode, useCallback, useContext, useEffect, useState, createContext } from 'react';
 import { api } from '../../api/client';
+import { PasswordInput } from '../shared/PasswordInput';
 import { clearAccessToken, getAccessToken, PLATFORM_UNAUTHORIZED_EVENT, PlatformSession, setAccessToken } from './session';
 
 const { Title, Text } = Typography;
@@ -176,8 +177,8 @@ export function AuthGate({ children }: { children: ReactNode }) {
           >
             <Tabs.TabPane itemKey="account" tab="账号登录" icon={<IconUser aria-hidden="true" />}>
               <div className="v2-auth-fields">
-                <label><span>用户名</span><Input autoFocus required={!legacyMode} autoComplete="username" value={username} onChange={setUsername} placeholder="请输入用户名" size="large" /></label>
-                <label><span>密码</span><Input required={!legacyMode} type="password" autoComplete="current-password" value={password} onChange={setPassword} placeholder="请输入密码" size="large" /></label>
+                <label><span>用户名</span><Input autoFocus required={!legacyMode} autoComplete="username" prefix={<IconUser aria-hidden="true" />} value={username} onChange={setUsername} placeholder="请输入用户名" size="large" /></label>
+                <label><span>密码</span><PasswordInput aria-label="登录密码" required={!legacyMode} autoComplete="current-password" prefix={<IconLock aria-hidden="true" />} visibilityLabel="登录密码" value={password} onChange={setPassword} placeholder="请输入密码" size="large" /></label>
               </div>
             </Tabs.TabPane>
             <Tabs.TabPane itemKey="token" tab="运维令牌" icon={<IconKey aria-hidden="true" />}>
@@ -190,7 +191,7 @@ export function AuthGate({ children }: { children: ReactNode }) {
                   title="仅限平台运维"
                   description="令牌只保存在当前浏览器会话，关闭或退出后失效。"
                 />
-                <label><span>运维访问令牌</span><Input autoFocus required={legacyMode} type="password" autoComplete="off" value={draftToken} onChange={setDraftToken} placeholder="请输入服务器访问令牌" size="large" /></label>
+                <label><span>运维访问令牌</span><PasswordInput aria-label="运维访问令牌" autoFocus required={legacyMode} autoComplete="off" prefix={<IconKey aria-hidden="true" />} visibilityLabel="运维访问令牌" value={draftToken} onChange={setDraftToken} placeholder="请输入服务器访问令牌" size="large" /></label>
               </div>
             </Tabs.TabPane>
           </Tabs>
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 9901a670..fba01eb1 100644
--- a/vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx
@@ -15,7 +15,7 @@ import {
   IconUser,
   IconExit
 } from '@douyinfe/semi-icons';
-import { Avatar, Banner, Button, Card, Dropdown, Input, Layout, Modal, Nav, SideSheet, Tag, Typography } from '@douyinfe/semi-ui';
+import { Avatar, Banner, Button, Card, Dropdown, Layout, Modal, Nav, SideSheet, Tag, Typography } from '@douyinfe/semi-ui';
 import { type CSSProperties, FormEvent, type MouseEvent, useEffect, useLayoutEffect, useState } from 'react';
 import { NavLink, Outlet, useLocation, useNavigate } from 'react-router-dom';
 import { api } from '../../api/client';
@@ -24,6 +24,7 @@ import { hasMenu } from '../auth/session';
 import { useMobileLayout } from '../hooks/useMobileLayout';
 import { useSideSheetA11y } from '../hooks/useSideSheetA11y';
 import { preloadRoute, scheduleIdleRoutePreloads, shouldPreloadRouteOnIntent } from '../routing/routeModules';
+import { PasswordInput } from '../shared/PasswordInput';
 
 const { Header, Sider, Content } = Layout;
 const { Text, Title } = Typography;
@@ -226,7 +227,7 @@ function PasswordDialog({ onClose, onChanged }: { onClose: () => void; onChanged
   return <Modal
     className="v2-password-modal"
     visible
-    title={<div className="v2-password-title"><span aria-hidden="true"><IconLock /></span><div><Title heading={4}>修改登录密码</Title><Text aria-hidden="true" type="tertiary" size="small">更新账号安全凭据</Text></div></div>}
+    title={<div className="v2-password-title"><span aria-hidden="true"><IconLock /></span><div><strong>修改登录密码</strong><Text aria-hidden="true" type="tertiary" size="small">更新账号安全凭据</Text></div></div>}
     aria-label="修改登录密码"
     onCancel={onClose}
     closeOnEsc={!pending}
@@ -234,14 +235,14 @@ function PasswordDialog({ onClose, onChanged }: { onClose: () => void; onChanged
     footer={null}
   >
     <form className="v2-password-dialog" onSubmit={submit}>
-      <Banner type="warning" bordered title="修改后需要重新登录" description="为保护账号安全，当前设备和其他设备上的旧会话都会失效。" />
-      <label><span>当前密码</span><Input autoFocus required type="password" autoComplete="current-password" value={currentPassword} onChange={setCurrentPassword} size="large" /></label>
-      <label><span>新密码</span><Input required minLength={10} type="password" autoComplete="new-password" value={newPassword} onChange={setNewPassword} placeholder="至少 10 位，包含三类字符" size="large" /></label>
+      <Banner type="warning" bordered closeIcon={null} title="修改后需要重新登录" description="为保护账号安全，当前设备和其他设备上的旧会话都会失效。" />
+      <label><span>当前密码</span><PasswordInput aria-label="当前密码" autoFocus required autoComplete="current-password" visibilityLabel="当前密码" value={currentPassword} onChange={setCurrentPassword} size="large" /></label>
+      <label><span>新密码</span><PasswordInput aria-label="新密码" required minLength={10} autoComplete="new-password" visibilityLabel="新密码" value={newPassword} onChange={setNewPassword} placeholder="至少 10 位，包含三类字符" size="large" /></label>
       <div className="v2-password-rules" aria-label="新密码安全规则">
         <span className={lengthValid ? 'is-valid' : ''}><IconTickCircle />10–128 位字符</span>
         <span className={categoriesValid ? 'is-valid' : ''}><IconTickCircle />大小写字母、数字、特殊字符至少三类</span>
       </div>
-      <label><span>确认新密码</span><Input required minLength={10} type="password" autoComplete="new-password" value={confirmPassword} onChange={setConfirmPassword} size="large" /></label>
+      <label><span>确认新密码</span><PasswordInput aria-label="确认新密码" required minLength={10} autoComplete="new-password" visibilityLabel="确认新密码" value={confirmPassword} onChange={setConfirmPassword} size="large" /></label>
       {confirmationStarted ? <Text className={`v2-password-match${passwordsMatch ? ' is-valid' : ' is-error'}`} role="status">{passwordsMatch ? '两次输入一致' : '两次输入的新密码不一致'}</Text> : null}
       {error ? <Banner className="v2-password-error" type="danger" bordered title="无法修改密码" description={error} /> : null}
       <footer><Button type="tertiary" onClick={onClose} disabled={pending}>取消</Button><Button htmlType="submit" theme="solid" type="primary" loading={pending} disabled={pending || !currentPassword || !passwordValid || !passwordsMatch}>{pending ? '正在修改…' : '确认修改'}</Button></footer>
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 0a441daf..7965cd9e 100644
--- a/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
+++ b/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
@@ -16,6 +16,7 @@ const reconciliationSource = readFileSync(resolve(process.cwd(), 'src/v2/pages/R
 const profileSyncPanelSource = readFileSync(resolve(process.cwd(), 'src/v2/pages/VehicleProfileSyncPanel.tsx'), 'utf8');
 const sourceEvidenceSource = readFileSync(resolve(process.cwd(), 'src/v2/shared/VehicleSourceEvidencePanel.tsx'), 'utf8');
 const mobileFilterToggleSource = readFileSync(resolve(process.cwd(), 'src/v2/shared/MobileFilterToggle.tsx'), 'utf8');
+const passwordInputSource = readFileSync(resolve(process.cwd(), 'src/v2/shared/PasswordInput.tsx'), 'utf8');
 const workspaceFilterPanelSource = readFileSync(resolve(process.cwd(), 'src/v2/shared/WorkspaceFilterPanel.tsx'), 'utf8');
 const workspaceMetricRailSource = readFileSync(resolve(process.cwd(), 'src/v2/shared/WorkspaceMetricRail.tsx'), 'utf8');
 const segmentedTabsSource = readFileSync(resolve(process.cwd(), 'src/v2/shared/SegmentedTabs.tsx'), 'utf8');
@@ -26,6 +27,7 @@ const vehicleCandidateListSource = readFileSync(resolve(process.cwd(), 'src/v2/s
 const recoveryActionsSource = readFileSync(resolve(process.cwd(), 'src/v2/shared/RecoveryActions.tsx'), 'utf8');
 const detailTriggerRowSource = readFileSync(resolve(process.cwd(), 'src/v2/shared/detailTriggerRow.ts'), 'utf8');
 const appShellSource = readFileSync(resolve(process.cwd(), 'src/v2/layout/AppShell.tsx'), 'utf8');
+const authGateSource = readFileSync(resolve(process.cwd(), 'src/v2/auth/AuthGate.tsx'), 'utf8');
 const routeBoundarySource = readFileSync(resolve(process.cwd(), 'src/v2/routing/RouteBoundary.tsx'), 'utf8');
 const fleetMapSource = readFileSync(resolve(process.cwd(), 'src/v2/map/FleetMap.tsx'), 'utf8');
 const trackMapSource = readFileSync(resolve(process.cwd(), 'src/v2/map/TrackMap.tsx'), 'utf8');
@@ -490,6 +492,13 @@ describe('V2 production entry', () => {
     expect(appShellSource).toContain('<Nav className="v2-navigation"');
     expect(appShellSource).toContain('<SideSheet 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);
+    expect(passwordInputSource).toContain('<Input');
+    expect(passwordInputSource).toContain('<Button');
+    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).not.toContain('v2-mobile-more-backdrop');
     expect(appShellSource).not.toContain('v2-mobile-more-sheet');
   });
diff --git a/vehicle-data-platform/apps/web/src/v2/shared/PasswordInput.test.tsx b/vehicle-data-platform/apps/web/src/v2/shared/PasswordInput.test.tsx
new file mode 100644
index 00000000..34d14e42
--- /dev/null
+++ b/vehicle-data-platform/apps/web/src/v2/shared/PasswordInput.test.tsx
@@ -0,0 +1,19 @@
+import { fireEvent, render, screen } from '@testing-library/react';
+import { expect, test } from 'vitest';
+import { PasswordInput } from './PasswordInput';
+
+test('uses a localized Semi UI visibility control without losing the password value', () => {
+  render(<PasswordInput aria-label="登录密码" visibilityLabel="登录密码" defaultValue="Secret!123" />);
+
+  const input = screen.getByLabelText('登录密码');
+  expect(input).toHaveAttribute('type', 'password');
+  expect(input).toHaveValue('Secret!123');
+
+  fireEvent.click(screen.getByRole('button', { name: '显示登录密码' }));
+  expect(input).toHaveAttribute('type', 'text');
+  expect(input).toHaveValue('Secret!123');
+  expect(screen.getByRole('button', { name: '隐藏登录密码' })).toHaveAttribute('aria-pressed', 'true');
+
+  fireEvent.click(screen.getByRole('button', { name: '隐藏登录密码' }));
+  expect(input).toHaveAttribute('type', 'password');
+});
diff --git a/vehicle-data-platform/apps/web/src/v2/shared/PasswordInput.tsx b/vehicle-data-platform/apps/web/src/v2/shared/PasswordInput.tsx
new file mode 100644
index 00000000..0d28f638
--- /dev/null
+++ b/vehicle-data-platform/apps/web/src/v2/shared/PasswordInput.tsx
@@ -0,0 +1,28 @@
+import { IconEyeClosed, IconEyeOpened } from '@douyinfe/semi-icons';
+import { Button, Input } from '@douyinfe/semi-ui';
+import { type ComponentProps, useState } from 'react';
+
+type PasswordInputProps = Omit<ComponentProps<typeof Input>, 'mode' | 'suffix' | 'type'> & {
+  visibilityLabel?: string;
+};
+
+export function PasswordInput({ visibilityLabel = '密码', ...props }: PasswordInputProps) {
+  const [visible, setVisible] = useState(false);
+  const actionLabel = `${visible ? '隐藏' : '显示'}${visibilityLabel}`;
+  return <Input
+    {...props}
+    type={visible ? 'text' : 'password'}
+    suffix={<Button
+      className="v2-password-visibility"
+      theme="borderless"
+      type="tertiary"
+      htmlType="button"
+      icon={visible ? <IconEyeOpened /> : <IconEyeClosed />}
+      aria-label={actionLabel}
+      aria-pressed={visible}
+      title={actionLabel}
+      onMouseDown={(event) => event.preventDefault()}
+      onClick={() => setVisible((value) => !value)}
+    />}
+  />;
+}
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 8bc643ad..9d276dd7 100644
--- a/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
+++ b/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
@@ -4901,8 +4901,9 @@
   font-weight: 650;
 }
 
-.v2-password-modal.semi-modal {
+.v2-password-modal .semi-modal {
   width: min(500px, calc(100vw - 32px)) !important;
+  max-width: calc(100vw - 32px);
 }
 
 .v2-password-modal .semi-modal-content {
@@ -4942,10 +4943,11 @@
   gap: 2px;
 }
 
-.v2-password-title h4.semi-typography {
+.v2-password-title strong {
   margin: 0;
   color: #293b51;
   font-size: 17px;
+  font-weight: 720;
   letter-spacing: -.02em;
 }
 
@@ -4995,6 +4997,24 @@
   border-radius: 8px;
 }
 
+.v2-password-visibility.semi-button {
+  width: 30px;
+  min-width: 30px;
+  height: 30px;
+  border-radius: 8px;
+  color: #718197;
+  padding: 0;
+}
+
+.v2-password-visibility.semi-button:hover {
+  background: #eaf2fd;
+  color: var(--v2-blue);
+}
+
+.v2-password-visibility.semi-button:focus-visible {
+  box-shadow: 0 0 0 2px rgba(18, 104, 243, .18);
+}
+
 .v2-password-rules {
   display: grid;
   grid-template-columns: minmax(0, .72fr) minmax(0, 1.6fr);
@@ -5187,9 +5207,10 @@
     min-width: min(272px, calc(100vw - 20px));
   }
 
-  .v2-password-modal.semi-modal {
-    width: calc(100vw - 16px) !important;
+  .v2-password-modal .semi-modal {
+    width: calc(100vw - 24px) !important;
     max-width: 500px;
+    margin-inline: auto;
   }
 
   .v2-password-modal .semi-modal-content {