diff --git a/frontend/src/features/auth/LoginPage.tsx b/frontend/src/features/auth/LoginPage.tsx
index bbc1159..4bf25e0 100644
--- a/frontend/src/features/auth/LoginPage.tsx
+++ b/frontend/src/features/auth/LoginPage.tsx
@@ -1,11 +1,11 @@
 import * as React from 'react'
 import { AlertCircle, LockKeyhole, UserRound } from 'lucide-react'
 
+import { AppField } from '@/components/app/AppField'
 import { Alert, AlertDescription, AlertTitle } from '@/components/ui/alert'
 import { Button } from '@/components/ui/button'
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
 import { Input } from '@/components/ui/input'
-import { Label } from '@/components/ui/label'
 
 import { useAuth } from './AuthProvider'
 
@@ -70,33 +70,33 @@ export function LoginPage() {
                     <AlertDescription>{error}</AlertDescription>
                   </Alert>
                 ) : null}
-                <div className="grid gap-2">
-                  <Label htmlFor="username">账号</Label>
+                <AppField label="账号" htmlFor="username" invalid={Boolean(error)} required>
                   <div className="relative">
                     <UserRound className="pointer-events-none absolute left-3 top-1/2 size-4 -translate-y-1/2 text-muted-foreground" />
                     <Input
                       id="username"
                       autoComplete="username"
+                      aria-invalid={Boolean(error)}
                       className="pl-9"
                       value={username}
                       onChange={(event) => setUsername(event.target.value)}
                     />
                   </div>
-                </div>
-                <div className="grid gap-2">
-                  <Label htmlFor="password">密码</Label>
+                </AppField>
+                <AppField label="密码" htmlFor="password" invalid={Boolean(error)} required>
                   <div className="relative">
                     <LockKeyhole className="pointer-events-none absolute left-3 top-1/2 size-4 -translate-y-1/2 text-muted-foreground" />
                     <Input
                       id="password"
                       type="password"
                       autoComplete="current-password"
+                      aria-invalid={Boolean(error)}
                       className="pl-9"
                       value={password}
                       onChange={(event) => setPassword(event.target.value)}
                     />
                   </div>
-                </div>
+                </AppField>
                 <Button type="submit" className="mt-1 w-full" disabled={submitting}>
                   {submitting ? '登录中...' : '登录'}
                 </Button>
diff --git a/frontend/src/features/solutions/SolutionCreatePage.tsx b/frontend/src/features/solutions/SolutionCreatePage.tsx
index c546863..1d9b938 100644
--- a/frontend/src/features/solutions/SolutionCreatePage.tsx
+++ b/frontend/src/features/solutions/SolutionCreatePage.tsx
@@ -100,15 +100,16 @@ export function SolutionCreatePage() {
           <div className="grid gap-4">
             <AppSection title="基础信息">
               <div className="grid gap-4 md:grid-cols-2">
-                <AppField label="方案标题">
+                <AppField label="方案标题" htmlFor="solution-title" required>
                   <Input
+                    id="solution-title"
                     required
                     placeholder="例如：认证回调阻塞处理方案"
                     value={form.title}
                     onChange={(event) => updateField('title', event.target.value)}
                   />
                 </AppField>
-                <AppField label="状态">
+                <AppField label="状态" required>
                   <Select value={form.status} onValueChange={(value) => updateField('status', value)}>
                     <SelectTrigger className="w-full">
                       <SelectValue placeholder="选择状态" />
@@ -121,15 +122,17 @@ export function SolutionCreatePage() {
                     </SelectContent>
                   </Select>
                 </AppField>
-                <AppField label="关联系统">
+                <AppField label="关联系统" htmlFor="solution-related-system">
                   <Input
+                    id="solution-related-system"
                     placeholder="例如：CRM、认证中心、支付系统"
                     value={form.related_system}
                     onChange={(event) => updateField('related_system', event.target.value)}
                   />
                 </AppField>
-                <AppField label="环境范围">
+                <AppField label="环境范围" htmlFor="solution-environment-scope">
                   <Input
+                    id="solution-environment-scope"
                     placeholder="例如：生产环境 / Chrome"
                     value={form.environment_scope}
                     onChange={(event) => updateField('environment_scope', event.target.value)}
@@ -139,8 +142,9 @@ export function SolutionCreatePage() {
             </AppSection>
 
             <AppSection title="问题特征">
-              <AppField label="问题特征">
+              <AppField label="问题特征" htmlFor="solution-problem-signature" required>
                 <Textarea
+                  id="solution-problem-signature"
                   required
                   placeholder="描述可复用的问题表现、报错特征、触发条件。"
                   value={form.problem_signature}
@@ -151,16 +155,18 @@ export function SolutionCreatePage() {
 
             <AppSection title="根因与方案">
               <div className="grid gap-4">
-                <AppField label="根因分析">
+                <AppField label="根因分析" htmlFor="solution-root-cause" required>
                   <Textarea
+                    id="solution-root-cause"
                     required
                     placeholder="说明问题的根因或判断依据。"
                     value={form.root_cause}
                     onChange={(event) => updateField('root_cause', event.target.value)}
                   />
                 </AppField>
-                <AppField label="处理方案">
+                <AppField label="处理方案" htmlFor="solution-content" required>
                   <Textarea
+                    id="solution-content"
                     required
                     placeholder="写清楚处理步骤、验证方式和回滚注意事项。"
                     value={form.solution}
@@ -171,8 +177,9 @@ export function SolutionCreatePage() {
             </AppSection>
 
             <AppSection title="风险提示">
-              <AppField label="风险提示">
+              <AppField label="风险提示" htmlFor="solution-risk-note">
                 <Textarea
+                  id="solution-risk-note"
                   placeholder="可选：说明操作风险、影响范围或上线前确认事项。"
                   value={form.risk_note}
                   onChange={(event) => updateField('risk_note', event.target.value)}
diff --git a/frontend/src/features/system/SystemRolesPage.tsx b/frontend/src/features/system/SystemRolesPage.tsx
index 24490be..745d652 100644
--- a/frontend/src/features/system/SystemRolesPage.tsx
+++ b/frontend/src/features/system/SystemRolesPage.tsx
@@ -1,5 +1,6 @@
 import * as React from 'react'
 
+import { AppField } from '@/components/app/AppField'
 import { AppDataTable, type AppDataTableColumn } from '@/components/app/AppDataTable'
 import { AppEmptyState } from '@/components/app/AppEmptyState'
 import { AppPageHeader } from '@/components/app/AppPageHeader'
@@ -74,9 +75,11 @@ export function SystemRolesPage() {
       <div className="mx-auto flex max-w-7xl flex-col gap-4">
         <AppPageHeader title="角色权限" />
 
-        <form className="grid gap-3 rounded-lg border border-border bg-surface p-3 md:grid-cols-[minmax(0,360px)_auto]" onSubmit={handleCreate}>
-          <Input placeholder="角色名称" value={roleName} onChange={(event) => setRoleName(event.target.value)} required />
-          <Button type="submit">创建角色</Button>
+        <form className="grid gap-3 rounded-lg border border-border bg-surface p-3 md:grid-cols-[minmax(0,360px)_auto] md:items-end" onSubmit={handleCreate}>
+          <AppField label="角色名称" htmlFor="system-role-name" required>
+            <Input id="system-role-name" value={roleName} onChange={(event) => setRoleName(event.target.value)} required />
+          </AppField>
+          <Button type="submit" className="w-full md:w-auto">创建角色</Button>
         </form>
 
         {error ? <AppEmptyState title="无法加载角色" description={error} /> : null}
diff --git a/frontend/src/features/system/SystemUserGroupsPage.tsx b/frontend/src/features/system/SystemUserGroupsPage.tsx
index 931c978..8f3ea5b 100644
--- a/frontend/src/features/system/SystemUserGroupsPage.tsx
+++ b/frontend/src/features/system/SystemUserGroupsPage.tsx
@@ -1,5 +1,6 @@
 import * as React from 'react'
 
+import { AppField } from '@/components/app/AppField'
 import { AppDataTable, type AppDataTableColumn } from '@/components/app/AppDataTable'
 import { AppEmptyState } from '@/components/app/AppEmptyState'
 import { AppPageHeader } from '@/components/app/AppPageHeader'
@@ -82,11 +83,17 @@ export function SystemUserGroupsPage() {
       <div className="mx-auto flex max-w-7xl flex-col gap-4">
         <AppPageHeader title="用户组管理" />
 
-        <form className="grid gap-3 rounded-lg border border-border bg-surface p-3 md:grid-cols-[1fr_1fr_2fr_auto]" onSubmit={handleCreate}>
-          <Input placeholder="用户组名称" value={form.name} onChange={(event) => setForm({ ...form, name: event.target.value })} required />
-          <Input placeholder="编码" value={form.code} onChange={(event) => setForm({ ...form, code: event.target.value })} required />
-          <Input placeholder="说明" value={form.description} onChange={(event) => setForm({ ...form, description: event.target.value })} />
-          <Button type="submit">创建用户组</Button>
+        <form className="grid gap-3 rounded-lg border border-border bg-surface p-3 md:grid-cols-[1fr_1fr_2fr_auto] md:items-end" onSubmit={handleCreate}>
+          <AppField label="用户组名称" htmlFor="system-group-name" required>
+            <Input id="system-group-name" value={form.name} onChange={(event) => setForm({ ...form, name: event.target.value })} required />
+          </AppField>
+          <AppField label="编码" htmlFor="system-group-code" required>
+            <Input id="system-group-code" value={form.code} onChange={(event) => setForm({ ...form, code: event.target.value })} required />
+          </AppField>
+          <AppField label="说明" htmlFor="system-group-description">
+            <Input id="system-group-description" value={form.description} onChange={(event) => setForm({ ...form, description: event.target.value })} />
+          </AppField>
+          <Button type="submit" className="w-full md:w-auto">创建用户组</Button>
         </form>
 
         {error ? <AppEmptyState title="无法加载用户组" description={error} /> : null}
diff --git a/frontend/src/features/system/SystemUsersPage.tsx b/frontend/src/features/system/SystemUsersPage.tsx
index ef9b4bf..dc6d38e 100644
--- a/frontend/src/features/system/SystemUsersPage.tsx
+++ b/frontend/src/features/system/SystemUsersPage.tsx
@@ -1,5 +1,6 @@
 import * as React from 'react'
 
+import { AppField } from '@/components/app/AppField'
 import { AppDataTable, type AppDataTableColumn } from '@/components/app/AppDataTable'
 import { AppEmptyState } from '@/components/app/AppEmptyState'
 import { AppFilterBar } from '@/components/app/AppFilterBar'
@@ -141,12 +142,20 @@ export function SystemUsersPage() {
       <div className="mx-auto flex max-w-7xl flex-col gap-4">
         <AppPageHeader title="用户管理" />
 
-        <form className="grid gap-3 rounded-lg border border-border bg-surface p-3 md:grid-cols-[1fr_1fr_1fr_1fr_auto]" onSubmit={handleCreateUser}>
-          <Input placeholder="账号" value={form.username} onChange={(event) => setForm({ ...form, username: event.target.value })} required />
-          <Input placeholder="显示名称" value={form.display_name} onChange={(event) => setForm({ ...form, display_name: event.target.value })} />
-          <Input placeholder="邮箱" value={form.email} onChange={(event) => setForm({ ...form, email: event.target.value })} />
-          <Input placeholder="初始密码" type="password" value={form.password} onChange={(event) => setForm({ ...form, password: event.target.value })} required />
-          <Button type="submit">创建用户</Button>
+        <form className="grid gap-3 rounded-lg border border-border bg-surface p-3 md:grid-cols-[1fr_1fr_1fr_1fr_auto] md:items-end" onSubmit={handleCreateUser}>
+          <AppField label="账号" htmlFor="system-user-username" required>
+            <Input id="system-user-username" value={form.username} onChange={(event) => setForm({ ...form, username: event.target.value })} required />
+          </AppField>
+          <AppField label="显示名称" htmlFor="system-user-display-name">
+            <Input id="system-user-display-name" value={form.display_name} onChange={(event) => setForm({ ...form, display_name: event.target.value })} />
+          </AppField>
+          <AppField label="邮箱" htmlFor="system-user-email">
+            <Input id="system-user-email" value={form.email} onChange={(event) => setForm({ ...form, email: event.target.value })} />
+          </AppField>
+          <AppField label="初始密码" htmlFor="system-user-password" required>
+            <Input id="system-user-password" type="password" value={form.password} onChange={(event) => setForm({ ...form, password: event.target.value })} required />
+          </AppField>
+          <Button type="submit" className="w-full md:w-auto">创建用户</Button>
         </form>
 
         <AppFilterBar>
diff --git a/frontend/src/features/tickets/TicketCreatePage.tsx b/frontend/src/features/tickets/TicketCreatePage.tsx
index 1629ed2..dc4bfa9 100644
--- a/frontend/src/features/tickets/TicketCreatePage.tsx
+++ b/frontend/src/features/tickets/TicketCreatePage.tsx
@@ -61,8 +61,9 @@ export function TicketCreatePage() {
             ) : null}
 
             <AppSection title="基础信息">
-              <AppField label="工单标题">
+              <AppField label="工单标题" htmlFor="ticket-title" required>
                 <Input
+                  id="ticket-title"
                   required
                   placeholder="例如：生产环境登录后跳转失败"
                   value={form.title}
@@ -73,7 +74,7 @@ export function TicketCreatePage() {
 
             <AppSection title="影响与优先级">
               <div className="grid gap-4 md:grid-cols-2">
-                <AppField label="优先级">
+                <AppField label="优先级" required>
                   <Select value={form.priority} onValueChange={(value) => updateField('priority', value as TicketInput['priority'])}>
                     <SelectTrigger className="w-full">
                       <SelectValue placeholder="请选择优先级" />
@@ -88,8 +89,9 @@ export function TicketCreatePage() {
                     </SelectContent>
                   </Select>
                 </AppField>
-                <AppField label="影响范围">
+                <AppField label="影响范围" htmlFor="ticket-impact-scope">
                   <Input
+                    id="ticket-impact-scope"
                     placeholder="例如：单个用户、某部门、全部用户"
                     value={form.impact_scope}
                     onChange={(event) => updateField('impact_scope', event.target.value)}
@@ -100,15 +102,17 @@ export function TicketCreatePage() {
 
             <AppSection title="环境与系统">
               <div className="grid gap-4 md:grid-cols-2">
-                <AppField label="关联系统">
+                <AppField label="关联系统" htmlFor="ticket-related-system">
                   <Input
+                    id="ticket-related-system"
                     placeholder="例如：CRM、财务系统、数据中台"
                     value={form.related_system}
                     onChange={(event) => updateField('related_system', event.target.value)}
                   />
                 </AppField>
-                <AppField label="运行环境">
+                <AppField label="运行环境" htmlFor="ticket-environment">
                   <Input
+                    id="ticket-environment"
                     placeholder="例如：生产环境、测试环境、Windows 终端"
                     value={form.environment}
                     onChange={(event) => updateField('environment', event.target.value)}
@@ -118,8 +122,9 @@ export function TicketCreatePage() {
             </AppSection>
 
             <AppSection title="问题描述">
-              <AppField label="详细描述">
+              <AppField label="详细描述" htmlFor="ticket-description" required>
                 <Textarea
+                  id="ticket-description"
                   required
                   placeholder="请描述影响范围、报错信息、操作步骤和已尝试的处理方式。"
                   value={form.description}