diff --git a/src/App.tsx b/src/App.tsx
index b69bc05..94ef3f5 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -50,14 +50,14 @@ export default function App() {
   }
 
   if (appState === 'checking') {
-    return <div className="loading">检查配置状态...</div>
+    return <div className="loading">Checking configuration status...</div>
   }
 
   if (appState === 'setup') {
     return <SetupWizardPage wizardBase={WIZARD_BASE} onComplete={checkInitialized} />
   }
 
-  if (loading) return <div className="loading">加载中...</div>
+  if (loading) return <div className="loading">Loading...</div>
 
   if (!user) {
     return (
diff --git a/src/components/Sidebar.tsx b/src/components/Sidebar.tsx
index 5237e4f..8906839 100644
--- a/src/components/Sidebar.tsx
+++ b/src/components/Sidebar.tsx
@@ -29,11 +29,11 @@ export default function Sidebar({ user, onLogout }: Props) {
   }, [user])
 
   const links = user ? [
-    { to: '/', icon: '📊', label: '仪表盘' },
+    { to: '/', icon: '📊', label: 'Dashboard' },
     { to: '/issues', icon: '📋', label: 'Issues' },
-    { to: '/projects', icon: '📁', label: '项目' },
-    { to: '/milestones', icon: '🏁', label: '里程碑' },
-    { to: '/notifications', icon: '🔔', label: '通知' + (unreadCount > 0 ? ' (' + unreadCount + ')' : '') },
+    { to: '/projects', icon: '📁', label: 'Projects' },
+    { to: '/milestones', icon: '🏁', label: 'Milestones' },
+    { to: '/notifications', icon: '🔔', label: 'Notifications' + (unreadCount > 0 ? ' (' + unreadCount + ')' : '') },
     { to: '/monitor', icon: '📡', label: 'Monitor' },
   ] : [
     { to: '/monitor', icon: '📡', label: 'Monitor' },
@@ -54,7 +54,7 @@ export default function Sidebar({ user, onLogout }: Props) {
       {user && (
         <div className="sidebar-footer">
           <span>👤 {user.username}</span>
-          <button onClick={onLogout}>退出</button>
+          <button onClick={onLogout}>Logout</button>
         </div>
       )}
     </nav>
diff --git a/src/pages/CreateIssuePage.tsx b/src/pages/CreateIssuePage.tsx
index 86a175d..4f0cc0f 100644
--- a/src/pages/CreateIssuePage.tsx
+++ b/src/pages/CreateIssuePage.tsx
@@ -27,16 +27,16 @@ export default function CreateIssuePage() {
 
   return (
     <div className="create-issue">
-      <h2>新建 Issue</h2>
+      <h2>Create Issue</h2>
       <form onSubmit={submit}>
-        <label>标题 <input required value={form.title} onChange={(e) => setForm({ ...form, title: e.target.value })} /></label>
-        <label>描述 <textarea value={form.description} onChange={(e) => setForm({ ...form, description: e.target.value })} /></label>
-        <label>项目
+        <label>Title <input required value={form.title} onChange={(e) => setForm({ ...form, title: e.target.value })} /></label>
+        <label>Description <textarea value={form.description} onChange={(e) => setForm({ ...form, description: e.target.value })} /></label>
+        <label>Projects
           <select value={form.project_id} onChange={(e) => setForm({ ...form, project_id: Number(e.target.value) })}>
             {projects.map((p) => <option key={p.id} value={p.id}>{p.name}</option>)}
           </select>
         </label>
-        <label>类型
+        <label>Type
           <select value={form.issue_type} onChange={(e) => setForm({ ...form, issue_type: e.target.value })}>
             <option value="task">Task</option>
             <option value="bug">Bug</option>
@@ -44,7 +44,7 @@ export default function CreateIssuePage() {
             <option value="resolution">Resolution</option>
           </select>
         </label>
-        <label>优先级
+        <label>Priority
           <select value={form.priority} onChange={(e) => setForm({ ...form, priority: e.target.value })}>
             <option value="low">Low</option>
             <option value="medium">Medium</option>
@@ -52,8 +52,8 @@ export default function CreateIssuePage() {
             <option value="critical">Critical</option>
           </select>
         </label>
-        <label>标签 <input value={form.tags} onChange={(e) => setForm({ ...form, tags: e.target.value })} placeholder="逗号分隔" /></label>
-        <button type="submit" className="btn-primary">创建</button>
+        <label>Tags <input value={form.tags} onChange={(e) => setForm({ ...form, tags: e.target.value })} placeholder="Comma separated" /></label>
+        <button type="submit" className="btn-primary">Create</button>
       </form>
     </div>
   )
diff --git a/src/pages/DashboardPage.tsx b/src/pages/DashboardPage.tsx
index f05f034..38c7491 100644
--- a/src/pages/DashboardPage.tsx
+++ b/src/pages/DashboardPage.tsx
@@ -9,7 +9,7 @@ export default function DashboardPage() {
     api.get<DashboardStats>('/dashboard/stats').then(({ data }) => setStats(data))
   }, [])
 
-  if (!stats) return <div className="loading">加载中...</div>
+  if (!stats) return <div className="loading">Loading...</div>
 
   const statusColors: Record<string, string> = {
     open: '#3b82f6', in_progress: '#f59e0b', resolved: '#10b981',
@@ -21,12 +21,12 @@ export default function DashboardPage() {
 
   return (
     <div className="dashboard">
-      <h2>📊 仪表盘</h2>
+      <h2>📊 Dashboard</h2>
 
       <div className="stats-grid">
         <div className="stat-card total">
           <span className="stat-number">{stats.total_issues}</span>
-          <span className="stat-label">总 Issues</span>
+          <span className="stat-label">Total Issues</span>
         </div>
         {Object.entries(stats.by_status || {}).map(([k, v]) => (
           <div className="stat-card" key={k} style={{ borderLeftColor: statusColors[k] || '#ccc' }}>
@@ -37,7 +37,7 @@ export default function DashboardPage() {
       </div>
 
       <div className="section">
-        <h3>按优先级</h3>
+        <h3>By Priority</h3>
         <div className="bar-chart">
           {Object.entries(stats.by_priority || {}).map(([k, v]) => (
             <div className="bar-row" key={k}>
@@ -52,10 +52,10 @@ export default function DashboardPage() {
       </div>
 
       <div className="section">
-        <h3>最近 Issues</h3>
+        <h3>Recent Issues</h3>
         <table>
           <thead>
-            <tr><th>ID</th><th>标题</th><th>状态</th><th>优先级</th><th>类型</th></tr>
+            <tr><th>ID</th><th>Title</th><th>Status</th><th>Priority</th><th>Type</th></tr>
           </thead>
           <tbody>
             {(stats.recent_issues || []).map((i) => (
diff --git a/src/pages/IssueDetailPage.tsx b/src/pages/IssueDetailPage.tsx
index 5d1263b..da1a713 100644
--- a/src/pages/IssueDetailPage.tsx
+++ b/src/pages/IssueDetailPage.tsx
@@ -30,7 +30,7 @@ export default function IssueDetailPage() {
     setIssue(data)
   }
 
-  if (!issue) return <div className="loading">加载中...</div>
+  if (!issue) return <div className="loading">Loading...</div>
 
   const statusActions: Record<string, string[]> = {
     open: ['in_progress', 'blocked'],
@@ -42,7 +42,7 @@ export default function IssueDetailPage() {
 
   return (
     <div className="issue-detail">
-      <button className="btn-back" onClick={() => navigate('/issues')}>← 返回</button>
+      <button className="btn-back" onClick={() => navigate('/issues')}>← Back</button>
 
       <div className="issue-header">
         <h2>#{issue.id} {issue.title}</h2>
@@ -56,21 +56,21 @@ export default function IssueDetailPage() {
 
       <div className="issue-body">
         <div className="section">
-          <h3>描述</h3>
-          <p>{issue.description || '暂无描述'}</p>
+          <h3>Description</h3>
+          <p>{issue.description || 'No description'}</p>
         </div>
 
         <div className="section">
-          <h3>详情</h3>
+          <h3>Details</h3>
           <dl>
-            <dt>创建时间</dt><dd>{dayjs(issue.created_at).format('YYYY-MM-DD HH:mm')}</dd>
-            {issue.due_date && <><dt>截止日期</dt><dd>{dayjs(issue.due_date).format('YYYY-MM-DD')}</dd></>}
-            {issue.updated_at && <><dt>更新时间</dt><dd>{dayjs(issue.updated_at).format('YYYY-MM-DD HH:mm')}</dd></>}
+            <dt>Created</dt><dd>{dayjs(issue.created_at).format('YYYY-MM-DD HH:mm')}</dd>
+            {issue.due_date && <><dt>Due date</dt><dd>{dayjs(issue.due_date).format('YYYY-MM-DD')}</dd></>}
+            {issue.updated_at && <><dt>Updated</dt><dd>{dayjs(issue.updated_at).format('YYYY-MM-DD HH:mm')}</dd></>}
           </dl>
         </div>
 
         <div className="section">
-          <h3>状态变更</h3>
+          <h3>Status changes</h3>
           <div className="actions">
             {(statusActions[issue.status] || []).map((s) => (
               <button key={s} className="btn-transition" onClick={() => transition(s)}>{s}</button>
@@ -79,16 +79,16 @@ export default function IssueDetailPage() {
         </div>
 
         <div className="section">
-          <h3>评论 ({comments.length})</h3>
+          <h3>Comments ({comments.length})</h3>
           {comments.map((c) => (
             <div className="comment" key={c.id}>
-              <div className="comment-meta">用户 #{c.author_id} · {dayjs(c.created_at).format('MM-DD HH:mm')}</div>
+              <div className="comment-meta">User #{c.author_id} · {dayjs(c.created_at).format('MM-DD HH:mm')}</div>
               <p>{c.content}</p>
             </div>
           ))}
           <div className="comment-form">
-            <textarea value={newComment} onChange={(e) => setNewComment(e.target.value)} placeholder="添加评论..." />
-            <button onClick={addComment} disabled={!newComment.trim()}>提交评论</button>
+            <textarea value={newComment} onChange={(e) => setNewComment(e.target.value)} placeholder="Add a comment..." />
+            <button onClick={addComment} disabled={!newComment.trim()}>Submit comment</button>
           </div>
         </div>
       </div>
diff --git a/src/pages/IssuesPage.tsx b/src/pages/IssuesPage.tsx
index 2760c97..dab71d6 100644
--- a/src/pages/IssuesPage.tsx
+++ b/src/pages/IssuesPage.tsx
@@ -33,12 +33,12 @@ export default function IssuesPage() {
     <div className="issues-page">
       <div className="page-header">
         <h2>📋 Issues ({total})</h2>
-        <button className="btn-primary" onClick={() => navigate('/issues/new')}>+ 新建 Issue</button>
+        <button className="btn-primary" onClick={() => navigate('/issues/new')}>+ Create Issue</button>
       </div>
 
       <div className="filters">
         <select value={statusFilter} onChange={(e) => { setStatusFilter(e.target.value); setPage(1) }}>
-          <option value="">全部状态</option>
+          <option value="">All statuses</option>
           <option value="open">Open</option>
           <option value="in_progress">In Progress</option>
           <option value="resolved">Resolved</option>
@@ -49,7 +49,7 @@ export default function IssuesPage() {
 
       <table className="issues-table">
         <thead>
-          <tr><th>#</th><th>标题</th><th>状态</th><th>优先级</th><th>类型</th><th>标签</th><th>创建时间</th></tr>
+          <tr><th>#</th><th>Title</th><th>Status</th><th>Priority</th><th>Type</th><th>Tags</th><th>Created</th></tr>
         </thead>
         <tbody>
           {issues.map((i) => (
@@ -68,9 +68,9 @@ export default function IssuesPage() {
 
       {totalPages > 1 && (
         <div className="pagination">
-          <button disabled={page <= 1} onClick={() => setPage(page - 1)}>上一页</button>
+          <button disabled={page <= 1} onClick={() => setPage(page - 1)}>Prev</button>
           <span>{page} / {totalPages}</span>
-          <button disabled={page >= totalPages} onClick={() => setPage(page + 1)}>下一页</button>
+          <button disabled={page >= totalPages} onClick={() => setPage(page + 1)}>Next</button>
         </div>
       )}
     </div>
diff --git a/src/pages/LoginPage.tsx b/src/pages/LoginPage.tsx
index 0b90318..646fec3 100644
--- a/src/pages/LoginPage.tsx
+++ b/src/pages/LoginPage.tsx
@@ -17,7 +17,7 @@ export default function LoginPage({ onLogin }: Props) {
     try {
       await onLogin(username, password)
     } catch {
-      setError('登录失败，请检查用户名和密码')
+      setError('Login failed. Check username and password.')
     } finally {
       setLoading(false)
     }
@@ -27,25 +27,25 @@ export default function LoginPage({ onLogin }: Props) {
     <div className="login-page">
       <div className="login-card">
         <h1>⚓ HarborForge</h1>
-        <p className="subtitle">Agent/人类协同任务管理平台</p>
+        <p className="subtitle">Agent/Human collaborative task management platform</p>
         <form onSubmit={handleSubmit}>
           <input
             type="text"
-            placeholder="用户名"
+            placeholder="Username"
             value={username}
             onChange={(e) => setUsername(e.target.value)}
             required
           />
           <input
             type="password"
-            placeholder="密码"
+            placeholder="Password"
             value={password}
             onChange={(e) => setPassword(e.target.value)}
             required
           />
           {error && <p className="error">{error}</p>}
           <button type="submit" disabled={loading}>
-            {loading ? '登录中...' : '登录'}
+            {loading ? 'Signing in...' : 'Sign in'}
           </button>
         </form>
       </div>
diff --git a/src/pages/MilestoneDetailPage.tsx b/src/pages/MilestoneDetailPage.tsx
index 97ac2b4..4c23f1e 100644
--- a/src/pages/MilestoneDetailPage.tsx
+++ b/src/pages/MilestoneDetailPage.tsx
@@ -17,37 +17,37 @@ export default function MilestoneDetailPage() {
     api.get<Issue[]>(`/milestones/${id}/issues`).then(({ data }) => setIssues(data)).catch(() => {})
   }, [id])
 
-  if (!milestone) return <div className="loading">加载中...</div>
+  if (!milestone) return <div className="loading">Loading...</div>
 
   return (
     <div className="milestone-detail">
-      <button className="btn-back" onClick={() => navigate('/milestones')}>← 返回里程碑列表</button>
+      <button className="btn-back" onClick={() => navigate('/milestones')}>← Back to milestones</button>
 
       <div className="issue-header">
         <h2>🏁 {milestone.title}</h2>
         <div className="issue-meta">
           <span className={`badge status-${milestone.status === 'active' ? 'open' : 'closed'}`}>{milestone.status}</span>
-          {milestone.due_date && <span className="text-dim">截止 {dayjs(milestone.due_date).format('YYYY-MM-DD')}</span>}
+          {milestone.due_date && <span className="text-dim">Due {dayjs(milestone.due_date).format('YYYY-MM-DD')}</span>}
         </div>
       </div>
 
       {milestone.description && (
         <div className="section">
-          <h3>描述</h3>
+          <h3>Description</h3>
           <p>{milestone.description}</p>
         </div>
       )}
 
       {progress && (
         <div className="section">
-          <h3>进度</h3>
+          <h3>Progress</h3>
           <div className="progress-bar-container">
             <div className="progress-bar" style={{ width: `${progress.progress_percent}%` }}>
               {progress.progress_percent.toFixed(0)}%
             </div>
           </div>
           <p className="text-dim" style={{ marginTop: 8 }}>
-            {progress.completed_issues} / {progress.total_issues} issues 已完成
+            {progress.completed_issues} / {progress.total_issues} issues completed
           </p>
         </div>
       )}
@@ -56,7 +56,7 @@ export default function MilestoneDetailPage() {
         <h3>Issues ({issues.length})</h3>
         <table>
           <thead>
-            <tr><th>#</th><th>标题</th><th>状态</th><th>优先级</th></tr>
+            <tr><th>#</th><th>Title</th><th>Status</th><th>Priority</th></tr>
           </thead>
           <tbody>
             {issues.map((i) => (
@@ -67,7 +67,7 @@ export default function MilestoneDetailPage() {
                 <td><span className={`badge priority-${i.priority}`}>{i.priority}</span></td>
               </tr>
             ))}
-            {issues.length === 0 && <tr><td colSpan={4} className="empty">暂无关联 issue</td></tr>}
+            {issues.length === 0 && <tr><td colSpan={4} className="empty">No linked issues</td></tr>}
           </tbody>
         </table>
       </div>
diff --git a/src/pages/MilestonesPage.tsx b/src/pages/MilestonesPage.tsx
index 541fe4a..7aa5b39 100644
--- a/src/pages/MilestonesPage.tsx
+++ b/src/pages/MilestonesPage.tsx
@@ -38,31 +38,31 @@ export default function MilestonesPage() {
   return (
     <div className="milestones-page">
       <div className="page-header">
-        <h2>🏁 里程碑 ({milestones.length})</h2>
+        <h2>🏁 Milestones ({milestones.length})</h2>
         <button className="btn-primary" onClick={() => setShowCreate(!showCreate)}>
-          {showCreate ? '取消' : '+ 新建里程碑'}
+          {showCreate ? 'Cancel' : '+ NewMilestones'}
         </button>
       </div>
 
       <div className="filters">
         <select value={projectFilter} onChange={(e) => setProjectFilter(e.target.value)}>
-          <option value="">全部项目</option>
+          <option value="">All projects</option>
           {projects.map((p) => <option key={p.id} value={p.id}>{p.name}</option>)}
         </select>
       </div>
 
       {showCreate && (
         <form className="inline-form" onSubmit={createMilestone}>
-          <input required placeholder="里程碑标题" value={form.title}
+          <input required placeholder="MilestonesTitle" value={form.title}
             onChange={(e) => setForm({ ...form, title: e.target.value })} />
-          <input placeholder="描述（可选）" value={form.description}
+          <input placeholder="Description (optional)" value={form.description}
             onChange={(e) => setForm({ ...form, description: e.target.value })} />
           <select value={form.project_id} onChange={(e) => setForm({ ...form, project_id: Number(e.target.value) })}>
             {projects.map((p) => <option key={p.id} value={p.id}>{p.name}</option>)}
           </select>
           <input type="date" value={form.due_date}
             onChange={(e) => setForm({ ...form, due_date: e.target.value })} />
-          <button type="submit" className="btn-primary">创建</button>
+          <button type="submit" className="btn-primary">Create</button>
         </form>
       )}
 
@@ -73,14 +73,14 @@ export default function MilestonesPage() {
               <span className={`badge status-${ms.status === 'active' ? 'open' : 'closed'}`}>{ms.status}</span>
               <h3>{ms.title}</h3>
             </div>
-            <p className="project-desc">{ms.description || '暂无描述'}</p>
+            <p className="project-desc">{ms.description || 'No description'}</p>
             <div className="project-meta">
-              {ms.due_date && <span>截止 {dayjs(ms.due_date).format('YYYY-MM-DD')}</span>}
-              <span>创建于 {dayjs(ms.created_at).format('YYYY-MM-DD')}</span>
+              {ms.due_date && <span>Due {dayjs(ms.due_date).format('YYYY-MM-DD')}</span>}
+              <span>Created {dayjs(ms.created_at).format('YYYY-MM-DD')}</span>
             </div>
           </div>
         ))}
-        {milestones.length === 0 && <p className="empty">暂无里程碑</p>}
+        {milestones.length === 0 && <p className="empty">No milestones</p>}
       </div>
     </div>
   )
diff --git a/src/pages/MonitorPage.tsx b/src/pages/MonitorPage.tsx
index 8c00785..3042bff 100644
--- a/src/pages/MonitorPage.tsx
+++ b/src/pages/MonitorPage.tsx
@@ -159,24 +159,24 @@ export default function MonitorPage() {
       <div className="stats-grid">
         <div className="stat-card total">
           <span className="stat-number">{data.issues.total_issues}</span>
-          <span className="stat-label">总 Issues</span>
+          <span className="stat-label">Total Issues</span>
         </div>
         <div className="stat-card" style={{ borderLeftColor: 'var(--accent)' }}>
           <span className="stat-number">{data.issues.new_issues_24h}</span>
-          <span className="stat-label">24小时新增</span>
+          <span className="stat-label">New (24h)</span>
         </div>
         <div className="stat-card" style={{ borderLeftColor: 'var(--success)' }}>
           <span className="stat-number">{data.issues.processed_issues_24h}</span>
-          <span className="stat-label">24小时已处理</span>
+          <span className="stat-label">Processed (24h)</span>
         </div>
       </div>
 
       <div className="section">
         <div className="page-header">
           <h3>Provider Usage</h3>
-          <span className="text-dim">更新于 {data.generated_at}</span>
+          <span className="text-dim">Updated at {data.generated_at}</span>
         </div>
-        {data.providers.length === 0 ? <p className="empty">暂无 provider 账号</p> : (
+        {data.providers.length === 0 ? <p className="empty">No provider accounts</p> : (
           <table>
             <thead>
               <tr>
@@ -209,8 +209,8 @@ export default function MonitorPage() {
       </div>
 
       <div className="section">
-        <h3>服务器监测</h3>
-        {data.servers.length === 0 ? <p className="empty">暂无监测服务器</p> : (
+        <h3>Server Monitoring</h3>
+        {data.servers.length === 0 ? <p className="empty">No monitored servers</p> : (
           <div className="monitor-grid">
             {data.servers.map((s) => (
               <div key={s.server_id} className="monitor-card">
@@ -234,11 +234,11 @@ export default function MonitorPage() {
 
       {canAdmin && (
         <div className="section">
-          <h3>Admin 管理</h3>
+          <h3>Admin</h3>
 
           <div className="monitor-admin">
             <div className="monitor-card">
-              <h4>Provider 账号</h4>
+              <h4>Provider Accounts</h4>
               <div className="inline-form">
                 <select value={providerForm.provider} onChange={(e) => setProviderForm({ ...providerForm, provider: e.target.value })}>
                   <option value='openai'>openai</option>
@@ -249,30 +249,30 @@ export default function MonitorPage() {
                 </select>
                 <input placeholder='label' value={providerForm.label} onChange={(e) => setProviderForm({ ...providerForm, label: e.target.value })} />
                 <input placeholder='credential' value={providerForm.credential} onChange={(e) => setProviderForm({ ...providerForm, credential: e.target.value })} />
-                <button className="btn-primary" onClick={testProvider}>测试连接</button>
-                <button className="btn-primary" onClick={addProvider}>添加账号</button>
+                <button className="btn-primary" onClick={testProvider}>Test Connection</button>
+                <button className="btn-primary" onClick={addProvider}>Add Account</button>
               </div>
               {providerTestMsg && <p className="text-dim">{providerTestMsg}</p>}
               <ul>
                 {providerAccounts.map((p) => (
-                  <li key={p.id}>{p.provider} / {p.label} / {p.credential_masked} <button className="btn-danger" onClick={() => deleteProvider(p.id)}>删除</button></li>
+                  <li key={p.id}>{p.provider} / {p.label} / {p.credential_masked} <button className="btn-danger" onClick={() => deleteProvider(p.id)}>Delete</button></li>
                 ))}
               </ul>
             </div>
 
             <div className="monitor-card">
-              <h4>服务器</h4>
+              <h4>Servers</h4>
               <div className="inline-form">
                 <input placeholder='identifier' value={serverForm.identifier} onChange={(e) => setServerForm({ ...serverForm, identifier: e.target.value })} />
                 <input placeholder='display_name' value={serverForm.display_name} onChange={(e) => setServerForm({ ...serverForm, display_name: e.target.value })} />
-                <button className="btn-primary" onClick={addServer}>添加服务器</button>
+                <button className="btn-primary" onClick={addServer}>Add Server</button>
               </div>
               <ul>
                 {servers.map((s) => (
                   <li key={s.server_id}>
                     {s.display_name} ({s.identifier})
-                    <button className="btn-secondary" onClick={() => createChallenge(s.server_id)} style={{ marginLeft: 8 }}>生成挑战</button>
-                    <button className="btn-danger" onClick={() => deleteServer(s.server_id)} style={{ marginLeft: 8 }}>删除</button>
+                    <button className="btn-secondary" onClick={() => createChallenge(s.server_id)} style={{ marginLeft: 8 }}>Generate Challenge</button>
+                    <button className="btn-danger" onClick={() => deleteServer(s.server_id)} style={{ marginLeft: 8 }}>Delete</button>
                   </li>
                 ))}
               </ul>
diff --git a/src/pages/NotificationsPage.tsx b/src/pages/NotificationsPage.tsx
index e8ac2b0..54567fe 100644
--- a/src/pages/NotificationsPage.tsx
+++ b/src/pages/NotificationsPage.tsx
@@ -32,16 +32,16 @@ export default function NotificationsPage() {
   return (
     <div className="notifications-page">
       <div className="page-header">
-        <h2>🔔 通知 {unreadCount > 0 && <span className="badge" style={{ background: 'var(--danger)' }}>{unreadCount}</span>}</h2>
+        <h2>🔔 Notifications {unreadCount > 0 && <span className="badge" style={{ background: 'var(--danger)' }}>{unreadCount}</span>}</h2>
         {unreadCount > 0 && (
-          <button className="btn-primary" onClick={markAllRead}>全部标记已读</button>
+          <button className="btn-primary" onClick={markAllRead}>Mark all read</button>
         )}
       </div>
 
       <div className="filters">
         <label className="filter-check">
           <input type="checkbox" checked={unreadOnly} onChange={(e) => setUnreadOnly(e.target.checked)} />
-          仅显示未读
+          Show unread only
         </label>
       </div>
 
@@ -62,7 +62,7 @@ export default function NotificationsPage() {
             </div>
           </div>
         ))}
-        {notifications.length === 0 && <p className="empty">暂无通知</p>}
+        {notifications.length === 0 && <p className="empty">No notifications</p>}
       </div>
     </div>
   )
diff --git a/src/pages/ProjectDetailPage.tsx b/src/pages/ProjectDetailPage.tsx
index 6daa6d8..2d56e81 100644
--- a/src/pages/ProjectDetailPage.tsx
+++ b/src/pages/ProjectDetailPage.tsx
@@ -31,62 +31,62 @@ export default function ProjectDetailPage() {
     setEditing(false)
   }
 
-  if (!project) return <div className="loading">加载中...</div>
+  if (!project) return <div className="loading">Loading...</div>
 
   return (
     <div className="project-detail">
-      <button className="btn-back" onClick={() => navigate('/projects')}>← 返回项目列表</button>
+      <button className="btn-back" onClick={() => navigate('/projects')}>← Back to projects</button>
 
       <div className="issue-header">
         {editing ? (
           <form className="inline-form" onSubmit={updateProject}>
             <input value={editForm.name} onChange={(e) => setEditForm({ ...editForm, name: e.target.value })} required />
-            <input value={editForm.description} onChange={(e) => setEditForm({ ...editForm, description: e.target.value })} placeholder="描述" />
-            <button type="submit" className="btn-primary">保存</button>
-            <button type="button" className="btn-back" onClick={() => setEditing(false)}>取消</button>
+            <input value={editForm.description} onChange={(e) => setEditForm({ ...editForm, description: e.target.value })} placeholder="Description" />
+            <button type="submit" className="btn-primary">Save</button>
+            <button type="button" className="btn-back" onClick={() => setEditing(false)}>Cancel</button>
           </form>
         ) : (
           <>
             <h2>📁 {project.name}</h2>
-            <p style={{ color: 'var(--text-dim)', marginTop: 4 }}>{project.description || '暂无描述'}</p>
-            <button className="btn-transition" style={{ marginTop: 8 }} onClick={() => setEditing(true)}>编辑</button>
+            <p style={{ color: 'var(--text-dim)', marginTop: 4 }}>{project.description || 'No description'}</p>
+            <button className="btn-transition" style={{ marginTop: 8 }} onClick={() => setEditing(true)}>Edit</button>
           </>
         )}
       </div>
 
       <div className="section">
-        <h3>成员 ({members.length})</h3>
+        <h3>Members ({members.length})</h3>
         {members.length > 0 ? (
           <div className="member-list">
             {members.map((m) => (
-              <span key={m.id} className="badge">{`用户 #${m.user_id} (${m.role})`}</span>
+              <span key={m.id} className="badge">{`User #${m.user_id} (${m.role})`}</span>
             ))}
           </div>
         ) : (
-          <p className="empty">暂无成员</p>
+          <p className="empty">No members</p>
         )}
       </div>
 
       <div className="section">
-        <h3>里程碑 ({milestones.length})</h3>
+        <h3>Milestones ({milestones.length})</h3>
         {milestones.map((ms) => (
           <div key={ms.id} className="milestone-item" onClick={() => navigate(`/milestones/${ms.id}`)}>
             <span className={`badge status-${ms.status === 'active' ? 'open' : ms.status === 'closed' ? 'closed' : 'in_progress'}`}>{ms.status}</span>
             <span className="milestone-title">{ms.title}</span>
-            {ms.due_date && <span className="text-dim"> · 截止 {dayjs(ms.due_date).format('YYYY-MM-DD')}</span>}
+            {ms.due_date && <span className="text-dim"> · Due {dayjs(ms.due_date).format('YYYY-MM-DD')}</span>}
           </div>
         ))}
-        {milestones.length === 0 && <p className="empty">暂无里程碑</p>}
+        {milestones.length === 0 && <p className="empty">No milestones</p>}
       </div>
 
       <div className="section">
         <div className="page-header">
-          <h3>最近 Issues</h3>
-          <button className="btn-primary" onClick={() => navigate('/issues/new')}>+ 新建</button>
+          <h3>Recent Issues</h3>
+          <button className="btn-primary" onClick={() => navigate('/issues/new')}>+ New</button>
         </div>
         <table>
           <thead>
-            <tr><th>#</th><th>标题</th><th>状态</th><th>优先级</th></tr>
+            <tr><th>#</th><th>Title</th><th>Status</th><th>Priority</th></tr>
           </thead>
           <tbody>
             {issues.map((i) => (
diff --git a/src/pages/ProjectsPage.tsx b/src/pages/ProjectsPage.tsx
index 2a3a1c7..7374b66 100644
--- a/src/pages/ProjectsPage.tsx
+++ b/src/pages/ProjectsPage.tsx
@@ -27,23 +27,23 @@ export default function ProjectsPage() {
   return (
     <div className="projects-page">
       <div className="page-header">
-        <h2>📁 项目 ({projects.length})</h2>
+        <h2>📁 Projects ({projects.length})</h2>
         <button className="btn-primary" onClick={() => setShowCreate(!showCreate)}>
-          {showCreate ? '取消' : '+ 新建项目'}
+          {showCreate ? 'Cancel' : '+ NewProjects'}
         </button>
       </div>
 
       {showCreate && (
         <form className="inline-form" onSubmit={createProject}>
           <input
-            required placeholder="项目名称" value={form.name}
+            required placeholder="Project name" value={form.name}
             onChange={(e) => setForm({ ...form, name: e.target.value })}
           />
           <input
-            placeholder="项目描述（可选）" value={form.description}
+            placeholder="ProjectsDescription (optional)" value={form.description}
             onChange={(e) => setForm({ ...form, description: e.target.value })}
           />
-          <button type="submit" className="btn-primary">创建</button>
+          <button type="submit" className="btn-primary">Create</button>
         </form>
       )}
 
@@ -51,13 +51,13 @@ export default function ProjectsPage() {
         {projects.map((p) => (
           <div key={p.id} className="project-card" onClick={() => navigate(`/projects/${p.id}`)}>
             <h3>{p.name}</h3>
-            <p className="project-desc">{p.description || '暂无描述'}</p>
+            <p className="project-desc">{p.description || 'No description'}</p>
             <div className="project-meta">
-              <span>创建于 {dayjs(p.created_at).format('YYYY-MM-DD')}</span>
+              <span>Created {dayjs(p.created_at).format('YYYY-MM-DD')}</span>
             </div>
           </div>
         ))}
-        {projects.length === 0 && <p className="empty">暂无项目，点击上方创建</p>}
+        {projects.length === 0 && <p className="empty">No projects yet. Create one above.</p>}
       </div>
     </div>
   )
diff --git a/src/pages/SetupWizardPage.tsx b/src/pages/SetupWizardPage.tsx
index 49a40e5..60f620e 100644
--- a/src/pages/SetupWizardPage.tsx
+++ b/src/pages/SetupWizardPage.tsx
@@ -21,7 +21,7 @@ interface SetupForm {
   project_description: string
 }
 
-const STEPS = ['欢迎', '数据库', '管理员', '项目', '完成']
+const STEPS = ['Welcome', 'Database', 'Admin', 'Projects', 'Finish']
 
 export default function SetupWizardPage({ wizardBase, onComplete }: Props) {
   const [step, setStep] = useState(0)
@@ -40,7 +40,7 @@ export default function SetupWizardPage({ wizardBase, onComplete }: Props) {
     db_database: 'harborforge',
     backend_base_url: 'http://127.0.0.1:8000',
     project_name: 'Default',
-    project_description: '默认项目',
+    project_description: 'Default project',
   })
 
   const wizardApi = axios.create({
@@ -59,7 +59,7 @@ export default function SetupWizardPage({ wizardBase, onComplete }: Props) {
       setStep(1)
     } catch {
       setWizardOk(false)
-      setError(`无法连接 AbstractWizard (${wizardBase})。\n请确认已通过 SSH 隧道映射端口：\nssh -L <wizard_port>:127.0.0.1:<wizard_port> user@server`)
+      setError(`Unable to connect to AbstractWizard (${wizardBase}).\nPlease ensure the SSH tunnel is configured:\nssh -L <wizard_port>:127.0.0.1:<wizard_port> user@server`)
     }
   }
 
@@ -98,7 +98,7 @@ export default function SetupWizardPage({ wizardBase, onComplete }: Props) {
 
       setStep(4)
     } catch (err: any) {
-      setError(`保存配置失败: ${err.message}`)
+      setError(`Failed to save configuration: ${err.message}`)
     } finally {
       setSaving(false)
     }
@@ -108,7 +108,7 @@ export default function SetupWizardPage({ wizardBase, onComplete }: Props) {
     <div className="setup-wizard">
       <div className="setup-container">
         <div className="setup-header">
-          <h1>⚓ HarborForge 初始化向导</h1>
+          <h1>⚓ HarborForge Setup Wizard</h1>
           <div className="setup-steps">
             {STEPS.map((s, i) => (
               <span key={i} className={`setup-step ${i === step ? 'active' : i < step ? 'done' : ''}`}>
@@ -123,17 +123,17 @@ export default function SetupWizardPage({ wizardBase, onComplete }: Props) {
         {/* Step 0: Welcome */}
         {step === 0 && (
           <div className="setup-step-content">
-            <h2>欢迎使用 HarborForge</h2>
-            <p>Agent/人类协同任务管理平台</p>
+            <h2>Welcome to HarborForge</h2>
+            <p>Agent/Human collaborative task management platform</p>
             <div className="setup-info">
-              <p>⚠️ 初始化向导通过 SSH 隧道连接 AbstractWizard，请确保已映射端口：</p>
+              <p>⚠️ The setup wizard connects to AbstractWizard via SSH tunnel. Ensure the port is forwarded:</p>
               <code>ssh -L &lt;wizard_port&gt;:127.0.0.1:&lt;wizard_port&gt; user@your-server</code>
             </div>
             <button className="btn-primary" onClick={checkWizard}>
-              连接 Wizard 开始配置
+              Connect to Wizard
             </button>
             {wizardOk === false && (
-              <p className="setup-hint">连接失败，请检查 SSH 隧道是否正确建立。</p>
+              <p className="setup-hint">Connection failed. Check the SSH tunnel.</p>
             )}
           </div>
         )}
@@ -141,18 +141,18 @@ export default function SetupWizardPage({ wizardBase, onComplete }: Props) {
         {/* Step 1: Database */}
         {step === 1 && (
           <div className="setup-step-content">
-            <h2>数据库配置</h2>
-            <p className="text-dim">配置 MySQL 连接信息（使用 docker-compose 内置 MySQL 可保持默认值）</p>
+            <h2>Database configuration</h2>
+            <p className="text-dim">Configure MySQL connection (docker-compose defaults are fine if using the bundled MySQL).</p>
             <div className="setup-form">
-              <label>主机 <input value={form.db_host} onChange={(e) => set('db_host', e.target.value)} /></label>
-              <label>端口 <input type="number" value={form.db_port} onChange={(e) => set('db_port', Number(e.target.value))} /></label>
-              <label>用户名 <input value={form.db_user} onChange={(e) => set('db_user', e.target.value)} /></label>
-              <label>密码 <input type="password" value={form.db_password} onChange={(e) => set('db_password', e.target.value)} /></label>
-              <label>数据库名 <input value={form.db_database} onChange={(e) => set('db_database', e.target.value)} /></label>
+              <label>Host <input value={form.db_host} onChange={(e) => set('db_host', e.target.value)} /></label>
+              <label>Port <input type="number" value={form.db_port} onChange={(e) => set('db_port', Number(e.target.value))} /></label>
+              <label>Username <input value={form.db_user} onChange={(e) => set('db_user', e.target.value)} /></label>
+              <label>Password <input type="password" value={form.db_password} onChange={(e) => set('db_password', e.target.value)} /></label>
+              <label>Database <input value={form.db_database} onChange={(e) => set('db_database', e.target.value)} /></label>
             </div>
             <div className="setup-nav">
-              <button className="btn-back" onClick={() => setStep(0)}>上一步</button>
-              <button className="btn-primary" onClick={() => setStep(2)}>下一步</button>
+              <button className="btn-back" onClick={() => setStep(0)}>Back</button>
+              <button className="btn-primary" onClick={() => setStep(2)}>Next</button>
             </div>
           </div>
         )}
@@ -160,21 +160,21 @@ export default function SetupWizardPage({ wizardBase, onComplete }: Props) {
         {/* Step 2: Admin */}
         {step === 2 && (
           <div className="setup-step-content">
-            <h2>管理员账号</h2>
-            <p className="text-dim">创建首个管理员用户</p>
+            <h2>Admin account</h2>
+            <p className="text-dim">Create the first admin user</p>
             <div className="setup-form">
-              <label>用户名 <input value={form.admin_username} onChange={(e) => set('admin_username', e.target.value)} required /></label>
-              <label>密码 <input type="password" value={form.admin_password} onChange={(e) => set('admin_password', e.target.value)} required placeholder="设置管理员密码" /></label>
-              <label>邮箱 <input type="email" value={form.admin_email} onChange={(e) => set('admin_email', e.target.value)} placeholder="admin@example.com" /></label>
-              <label>姓名 <input value={form.admin_full_name} onChange={(e) => set('admin_full_name', e.target.value)} /></label>
+              <label>Username <input value={form.admin_username} onChange={(e) => set('admin_username', e.target.value)} required /></label>
+              <label>Password <input type="password" value={form.admin_password} onChange={(e) => set('admin_password', e.target.value)} required placeholder="Set admin password" /></label>
+              <label>Email <input type="email" value={form.admin_email} onChange={(e) => set('admin_email', e.target.value)} placeholder="admin@example.com" /></label>
+              <label>Full name <input value={form.admin_full_name} onChange={(e) => set('admin_full_name', e.target.value)} /></label>
             </div>
             <div className="setup-nav">
-              <button className="btn-back" onClick={() => setStep(1)}>上一步</button>
+              <button className="btn-back" onClick={() => setStep(1)}>Back</button>
               <button className="btn-primary" onClick={() => {
-                if (!form.admin_password) { setError('请设置管理员密码'); return }
+                if (!form.admin_password) { setError('Please set an admin password'); return }
                 setError('')
                 setStep(3)
-              }}>下一步</button>
+              }}>Next</button>
             </div>
           </div>
         )}
@@ -182,17 +182,17 @@ export default function SetupWizardPage({ wizardBase, onComplete }: Props) {
         {/* Step 3: Project */}
         {step === 3 && (
           <div className="setup-step-content">
-            <h2>默认项目（可选）</h2>
-            <p className="text-dim">创建一个初始项目，也可以跳过</p>
+            <h2>Default project (optional)</h2>
+            <p className="text-dim">Create an initial project or skip</p>
             <div className="setup-form">
-              <label>后端 Base URL <input value={form.backend_base_url} onChange={(e) => set('backend_base_url', e.target.value)} placeholder="http://127.0.0.1:8000" /></label>
-              <label>项目名称 <input value={form.project_name} onChange={(e) => set('project_name', e.target.value)} placeholder="留空则跳过" /></label>
-              <label>项目描述 <input value={form.project_description} onChange={(e) => set('project_description', e.target.value)} /></label>
+              <label>Backend Base URL <input value={form.backend_base_url} onChange={(e) => set('backend_base_url', e.target.value)} placeholder="http://127.0.0.1:8000" /></label>
+              <label>Project name <input value={form.project_name} onChange={(e) => set('project_name', e.target.value)} placeholder="Leave blank to skip" /></label>
+              <label>ProjectsDescription <input value={form.project_description} onChange={(e) => set('project_description', e.target.value)} /></label>
             </div>
             <div className="setup-nav">
-              <button className="btn-back" onClick={() => setStep(2)}>上一步</button>
+              <button className="btn-back" onClick={() => setStep(2)}>Back</button>
               <button className="btn-primary" onClick={saveConfig} disabled={saving}>
-                {saving ? '保存中...' : '完成配置'}
+                {saving ? 'Saving...' : 'Finish setup'}
               </button>
             </div>
           </div>
@@ -202,16 +202,16 @@ export default function SetupWizardPage({ wizardBase, onComplete }: Props) {
         {step === 4 && (
           <div className="setup-step-content">
             <div className="setup-done">
-              <h2>✅ 初始化完成！</h2>
-              <p>配置已保存到 AbstractWizard。</p>
+              <h2>✅ Setup complete!</h2>
+              <p>Configuration saved to AbstractWizard.</p>
               <div className="setup-info">
-                <p>请在服务器上重启服务：</p>
+                <p>Restart services on the server:</p>
                 <code>docker compose restart</code>
-                <p style={{ marginTop: '1rem' }}>后端启动完成后，刷新本页面进入登录界面。</p>
-                <p>管理员账号: <strong>{form.admin_username}</strong></p>
+                <p style={{ marginTop: '1rem' }}>After the backend starts, refresh this page to go to login.</p>
+                <p>Admin account: <strong>{form.admin_username}</strong></p>
               </div>
               <button className="btn-primary" onClick={onComplete}>
-                刷新检查
+                Refresh to check
               </button>
             </div>
           </div>