feat: unify page layout with consistent page titles and structure

- Add page title (h1) to all main pages for consistent hierarchy
  - Wrap page content in container/content div structure
  - Handle 404 error for unsupported OAuth excluded models API
  - Add cache price input field in usage page model pricing
  - Add upgrade required i18n messages for older CPA versions
  - Import mixins in page-level SCSS modules

src/i18n/locales/en.json

@@ -370,7 +370,10 @@
     "load_failed": "Failed to load exclusion list",
     "provider_required": "Please enter a provider first",
     "scope_all": "Scope: All providers",
-    "scope_provider": "Scope: {provider}"
+    "scope_provider": "Scope: {provider}",
+    "upgrade_required": "This feature requires a newer CLI Proxy API (CPA) version. Please upgrade.",
+    "upgrade_required_title": "Please upgrade CLI Proxy API",
+    "upgrade_required_desc": "The current server does not support the OAuth excluded models API. Please upgrade to the latest CLI Proxy API (CPA) version."
   },
   "auth_login": {
     "codex_oauth_title": "Codex OAuth",

src/i18n/locales/zh-CN.json

@@ -380,7 +380,10 @@
     "load_failed": "加载排除列表失败",
     "provider_required": "请先填写提供商名称",
     "scope_all": "当前范围：全局（显示所有提供商）",
-    "scope_provider": "当前范围：{{provider}}"
+    "scope_provider": "当前范围：{{provider}}",
+    "upgrade_required": "当前 CPA 版本不支持模型排除列表，请升级 CPA 版本",
+    "upgrade_required_title": "需要升级 CPA 版本",
+    "upgrade_required_desc": "当前服务器版本不支持获取模型排除列表功能，请升级到最新版本的 CPA（CLI Proxy API）后重试。"
   },
   "auth_login": {
     "codex_oauth_title": "Codex OAuth",

src/pages/AiProvidersPage.tsx

@@ -1072,8 +1072,10 @@ export function AiProvidersPage() {
   };
 
   return (
-    <div className="stack">
-      {error && <div className="error-box">{error}</div>}
+    <div className={styles.container}>
+      <h1 className={styles.pageTitle}>{t('ai_providers.title')}</h1>
+      <div className={styles.content}>
+        {error && <div className="error-box">{error}</div>}
 
       <Card
         title={t('ai_providers.gemini_title')}
@@ -1972,6 +1974,7 @@ export function AiProvidersPage() {
           </div>
         )}
       </Modal>
+      </div>
     </div>
   );
 }

src/pages/ApiKeysPage.module.scss

@@ -1,3 +1,5 @@
+@use '../styles/mixins' as *;
+
 .container {
   width: 100%;
 }

src/pages/ApiKeysPage.tsx

@@ -9,6 +9,7 @@ import { LoadingSpinner } from '@/components/ui/LoadingSpinner';
 import { useAuthStore, useConfigStore, useNotificationStore } from '@/stores';
 import { apiKeysApi } from '@/services/api';
 import { maskApiKey } from '@/utils/format';
+import styles from './ApiKeysPage.module.scss';
 
 export function ApiKeysPage() {
   const { t } = useTranslation();
@@ -138,80 +139,84 @@ export function ApiKeysPage() {
   );
 
   return (
-    <Card title={t('api_keys.proxy_auth_title')} extra={actionButtons}>
-      {error && <div className="error-box">{error}</div>}
+    <div className={styles.container}>
+      <h1 className={styles.pageTitle}>{t('api_keys.title')}</h1>
 
-      {loading ? (
-        <div className="flex-center" style={{ padding: '24px 0' }}>
-          <LoadingSpinner size={28} />
-        </div>
-      ) : apiKeys.length === 0 ? (
-        <EmptyState
-          title={t('api_keys.empty_title')}
-          description={t('api_keys.empty_desc')}
-          action={
-            <Button onClick={openAddModal} disabled={disableControls}>
-              {t('api_keys.add_button')}
-            </Button>
-          }
-        />
-      ) : (
-        <div className="item-list">
-          {apiKeys.map((key, index) => (
-            <div key={index} className="item-row">
-              <div className="item-meta">
-                <div className="pill">#{index + 1}</div>
-                <div className="item-title">{t('api_keys.item_title')}</div>
-                <div className="item-subtitle">{maskApiKey(String(key || ''))}</div>
-              </div>
-              <div className="item-actions">
-                <Button variant="secondary" size="sm" onClick={() => openEditModal(index)} disabled={disableControls}>
-                  {t('common.edit')}
-                </Button>
-                <Button
-                  variant="danger"
-                  size="sm"
-                  onClick={() => handleDelete(index)}
-                  disabled={disableControls || deletingIndex === index}
-                  loading={deletingIndex === index}
-                >
-                  {t('common.delete')}
-                </Button>
-              </div>
-            </div>
-          ))}
-        </div>
-      )}
+      <Card title={t('api_keys.proxy_auth_title')} extra={actionButtons}>
+        {error && <div className="error-box">{error}</div>}
 
-      <Modal
-        open={modalOpen}
-        onClose={closeModal}
-        title={editingIndex !== null ? t('api_keys.edit_modal_title') : t('api_keys.add_modal_title')}
-        footer={
-          <>
-            <Button variant="secondary" onClick={closeModal} disabled={saving}>
-              {t('common.cancel')}
-            </Button>
-            <Button onClick={handleSave} loading={saving}>
-              {editingIndex !== null ? t('common.update') : t('common.add')}
-            </Button>
-          </>
-        }
-      >
-        <Input
-          label={
-            editingIndex !== null ? t('api_keys.edit_modal_key_label') : t('api_keys.add_modal_key_label')
+        {loading ? (
+          <div className="flex-center" style={{ padding: '24px 0' }}>
+            <LoadingSpinner size={28} />
+          </div>
+        ) : apiKeys.length === 0 ? (
+          <EmptyState
+            title={t('api_keys.empty_title')}
+            description={t('api_keys.empty_desc')}
+            action={
+              <Button onClick={openAddModal} disabled={disableControls}>
+                {t('api_keys.add_button')}
+              </Button>
+            }
+          />
+        ) : (
+          <div className="item-list">
+            {apiKeys.map((key, index) => (
+              <div key={index} className="item-row">
+                <div className="item-meta">
+                  <div className="pill">#{index + 1}</div>
+                  <div className="item-title">{t('api_keys.item_title')}</div>
+                  <div className="item-subtitle">{maskApiKey(String(key || ''))}</div>
+                </div>
+                <div className="item-actions">
+                  <Button variant="secondary" size="sm" onClick={() => openEditModal(index)} disabled={disableControls}>
+                    {t('common.edit')}
+                  </Button>
+                  <Button
+                    variant="danger"
+                    size="sm"
+                    onClick={() => handleDelete(index)}
+                    disabled={disableControls || deletingIndex === index}
+                    loading={deletingIndex === index}
+                  >
+                    {t('common.delete')}
+                  </Button>
+                </div>
+              </div>
+            ))}
+          </div>
+        )}
+
+        <Modal
+          open={modalOpen}
+          onClose={closeModal}
+          title={editingIndex !== null ? t('api_keys.edit_modal_title') : t('api_keys.add_modal_title')}
+          footer={
+            <>
+              <Button variant="secondary" onClick={closeModal} disabled={saving}>
+                {t('common.cancel')}
+              </Button>
+              <Button onClick={handleSave} loading={saving}>
+                {editingIndex !== null ? t('common.update') : t('common.add')}
+              </Button>
+            </>
           }
-          placeholder={
-            editingIndex !== null
-              ? t('api_keys.edit_modal_key_label')
-              : t('api_keys.add_modal_key_placeholder')
-          }
-          value={inputValue}
-          onChange={(e) => setInputValue(e.target.value)}
-          disabled={saving}
-        />
-      </Modal>
-    </Card>
+        >
+          <Input
+            label={
+              editingIndex !== null ? t('api_keys.edit_modal_key_label') : t('api_keys.add_modal_key_label')
+            }
+            placeholder={
+              editingIndex !== null
+                ? t('api_keys.edit_modal_key_label')
+                : t('api_keys.add_modal_key_placeholder')
+            }
+            value={inputValue}
+            onChange={(e) => setInputValue(e.target.value)}
+            disabled={saving}
+          />
+        </Modal>
+      </Card>
+    </div>
   );
 }

src/pages/AuthFilesPage.module.scss

@@ -7,6 +7,25 @@
   gap: $spacing-lg;
 }
 
+.pageHeader {
+  display: flex;
+  flex-direction: column;
+  gap: $spacing-sm;
+}
+
+.pageTitle {
+  font-size: 28px;
+  font-weight: 700;
+  color: var(--text-primary);
+  margin: 0;
+}
+
+.description {
+  font-size: 14px;
+  color: var(--text-secondary);
+  margin: 0;
+}
+
 .headerActions {
   display: flex;
   gap: $spacing-sm;
@@ -472,4 +491,3 @@
   border: 1px solid var(--danger-color);
   flex-shrink: 0;
 }
-

src/pages/AuthFilesPage.tsx

@@ -150,11 +150,13 @@ export function AuthFilesPage() {
 
   // OAuth 排除模型相关
   const [excluded, setExcluded] = useState<Record<string, string[]>>({});
+  const [excludedError, setExcludedError] = useState<'unsupported' | null>(null);
   const [excludedModalOpen, setExcludedModalOpen] = useState(false);
   const [excludedForm, setExcludedForm] = useState<ExcludedFormState>({ provider: '', modelsText: '' });
   const [savingExcluded, setSavingExcluded] = useState(false);
 
   const fileInputRef = useRef<HTMLInputElement | null>(null);
+  const excludedUnsupportedRef = useRef(false);
 
   const disableControls = connectionStatus !== 'connected';
 
@@ -199,11 +201,27 @@ export function AuthFilesPage() {
   const loadExcluded = useCallback(async () => {
     try {
       const res = await authFilesApi.getOauthExcludedModels();
+      excludedUnsupportedRef.current = false;
       setExcluded(res || {});
-    } catch {
+      setExcludedError(null);
+    } catch (err: unknown) {
+      const status =
+        typeof err === 'object' && err !== null && 'status' in err
+          ? (err as { status?: unknown }).status
+          : undefined;
+
+      if (status === 404) {
+        setExcluded({});
+        setExcludedError('unsupported');
+        if (!excludedUnsupportedRef.current) {
+          excludedUnsupportedRef.current = true;
+          showNotification(t('oauth_excluded.upgrade_required'), 'warning');
+        }
+        return;
+      }
       // 静默失败
     }
-  }, []);
+  }, [showNotification, t]);
 
   useEffect(() => {
     loadFiles();
@@ -651,8 +669,13 @@ export function AuthFilesPage() {
 
   return (
     <div className={styles.container}>
+      <div className={styles.pageHeader}>
+        <h1 className={styles.pageTitle}>{t('auth_files.title')}</h1>
+        <p className={styles.description}>{t('auth_files.description')}</p>
+      </div>
+
       <Card
-        title={t('auth_files.title')}
+        title={t('auth_files.title_section')}
         extra={
           <div className={styles.headerActions}>
             <Button variant="secondary" size="sm" onClick={() => { loadFiles(); loadKeyStats(); }} disabled={loading}>
@@ -770,12 +793,21 @@ export function AuthFilesPage() {
       <Card
         title={t('oauth_excluded.title')}
         extra={
-          <Button size="sm" onClick={() => openExcludedModal()} disabled={disableControls}>
+          <Button
+            size="sm"
+            onClick={() => openExcludedModal()}
+            disabled={disableControls || excludedError === 'unsupported'}
+          >
             {t('oauth_excluded.add')}
           </Button>
         }
       >
-        {Object.keys(excluded).length === 0 ? (
+        {excludedError === 'unsupported' ? (
+          <EmptyState
+            title={t('oauth_excluded.upgrade_required_title')}
+            description={t('oauth_excluded.upgrade_required_desc')}
+          />
+        ) : Object.keys(excluded).length === 0 ? (
           <EmptyState title={t('oauth_excluded.list_empty_all')} />
         ) : (
           <div className={styles.excludedList}>

src/pages/LogsPage.module.scss

@@ -1,3 +1,5 @@
+@use '../styles/mixins' as *;
+
 .container {
   width: 100%;
 }

src/pages/LogsPage.tsx

@@ -5,6 +5,7 @@ import { Button } from '@/components/ui/Button';
 import { EmptyState } from '@/components/ui/EmptyState';
 import { useNotificationStore, useAuthStore } from '@/stores';
 import { logsApi } from '@/services/api/logs';
+import styles from './LogsPage.module.scss';
 
 interface ErrorLogItem {
   name: string;
@@ -197,9 +198,11 @@ export function LogsPage() {
   const logsText = logLines.join('\n');
 
   return (
-    <div className="stack">
+    <div className={styles.container}>
+      <h1 className={styles.pageTitle}>{t('logs.title')}</h1>
+      <div className={styles.content}>
       <Card
-        title={t('logs.title')}
+        title={t('logs.log_content')}
         extra={
           <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
             <Button variant="secondary" size="sm" onClick={() => loadLogs(false)} disabled={loading}>
@@ -264,6 +267,7 @@ export function LogsPage() {
           </div>
         )}
       </Card>
+      </div>
     </div>
   );
 }

src/pages/OAuthPage.module.scss

@@ -1,3 +1,5 @@
+@use '../styles/mixins' as *;
+
 .container {
   width: 100%;
 }

src/pages/OAuthPage.tsx

@@ -6,6 +6,7 @@ import { Input } from '@/components/ui/Input';
 import { useNotificationStore } from '@/stores';
 import { oauthApi, type OAuthProvider, type IFlowCookieAuthResponse } from '@/services/api/oauth';
 import { isLocalhost } from '@/utils/connection';
+import styles from './OAuthPage.module.scss';
 
 interface ProviderState {
   url?: string;
@@ -157,130 +158,134 @@ export function OAuthPage() {
   };
 
   return (
-    <div className="stack">
-      {PROVIDERS.map((provider) => {
-        const state = states[provider.id] || {};
-        // 非本地访问时禁用所有 OAuth 登录方式
-        const isDisabled = !isLocal;
-        return (
-          <div
-            key={provider.id}
-            style={isDisabled ? { opacity: 0.6, pointerEvents: 'none' } : undefined}
-          >
-            <Card
-              title={t(provider.titleKey)}
-              extra={
-                <Button
-                  onClick={() => startAuth(provider.id)}
-                  loading={state.polling}
-                  disabled={isDisabled}
-                >
-                  {t('common.login')}
-                </Button>
-              }
-            >
-              <div className="hint">{t(provider.hintKey)}</div>
-              {isDisabled && (
-                <div className="status-badge warning" style={{ marginTop: 8 }}>
-                  {t('auth_login.remote_access_disabled')}
-                </div>
-              )}
-              {!isDisabled && state.url && (
-                <div className="connection-box">
-                  <div className="label">{t(provider.urlLabelKey)}</div>
-                  <div className="value">{state.url}</div>
-                  <div className="item-actions" style={{ marginTop: 8 }}>
-                    <Button variant="secondary" size="sm" onClick={() => copyLink(state.url!)}>
-                      {t('auth_login.codex_copy_link')}
-                    </Button>
-                    <Button
-                      variant="secondary"
-                      size="sm"
-                      onClick={() => window.open(state.url, '_blank', 'noopener,noreferrer')}
-                    >
-                      {t('auth_login.codex_open_link')}
-                    </Button>
-                  </div>
-                </div>
-              )}
-              {!isDisabled && state.status && state.status !== 'idle' && (
-                <div className="status-badge" style={{ marginTop: 8 }}>
-                  {state.status === 'success'
-                    ? t('auth_login.codex_oauth_status_success')
-                    : state.status === 'error'
-                      ? `${t('auth_login.codex_oauth_status_error')} ${state.error || ''}`
-                      : t('auth_login.codex_oauth_status_waiting')}
-                </div>
-              )}
-            </Card>
-          </div>
-        );
-      })}
+    <div className={styles.container}>
+      <h1 className={styles.pageTitle}>{t('nav.oauth', { defaultValue: 'OAuth' })}</h1>
 
-      {/* iFlow Cookie 登录 */}
-      <Card
-        title={t('auth_login.iflow_cookie_title')}
-        extra={
-          <Button onClick={submitIflowCookie} loading={iflowCookie.loading}>
-            {t('auth_login.iflow_cookie_button')}
-          </Button>
-        }
-      >
-        <div className="hint">{t('auth_login.iflow_cookie_hint')}</div>
-        <div className="hint" style={{ marginTop: 4 }}>
-          {t('auth_login.iflow_cookie_key_hint')}
-        </div>
-        <div className="form-item" style={{ marginTop: 12 }}>
-          <label className="label">{t('auth_login.iflow_cookie_label')}</label>
-          <Input
-            value={iflowCookie.cookie}
-            onChange={(e) => setIflowCookie((prev) => ({ ...prev, cookie: e.target.value }))}
-            placeholder={t('auth_login.iflow_cookie_placeholder')}
-          />
-        </div>
-        {iflowCookie.error && (
-          <div
-            className={`status-badge ${iflowCookie.errorType === 'warning' ? 'warning' : 'error'}`}
-            style={{ marginTop: 8 }}
-          >
-            {iflowCookie.errorType === 'warning'
-              ? t('auth_login.iflow_cookie_status_duplicate')
-              : t('auth_login.iflow_cookie_status_error')}{' '}
-            {iflowCookie.error}
-          </div>
-        )}
-        {iflowCookie.result && iflowCookie.result.status === 'ok' && (
-          <div className="connection-box" style={{ marginTop: 12 }}>
-            <div className="label">{t('auth_login.iflow_cookie_result_title')}</div>
-            <div className="key-value-list">
-              {iflowCookie.result.email && (
-                <div className="key-value-item">
-                  <span className="key">{t('auth_login.iflow_cookie_result_email')}</span>
-                  <span className="value">{iflowCookie.result.email}</span>
-                </div>
-              )}
-              {iflowCookie.result.expired && (
-                <div className="key-value-item">
-                  <span className="key">{t('auth_login.iflow_cookie_result_expired')}</span>
-                  <span className="value">{iflowCookie.result.expired}</span>
-                </div>
-              )}
-              {iflowCookie.result.saved_path && (
-                <div className="key-value-item">
-                  <span className="key">{t('auth_login.iflow_cookie_result_path')}</span>
-                  <span className="value">{iflowCookie.result.saved_path}</span>
-                </div>
-              )}
-              {iflowCookie.result.type && (
-                <div className="key-value-item">
-                  <span className="key">{t('auth_login.iflow_cookie_result_type')}</span>
-                  <span className="value">{iflowCookie.result.type}</span>
-                </div>
-              )}
+      <div className={styles.content}>
+        {PROVIDERS.map((provider) => {
+          const state = states[provider.id] || {};
+          // 非本地访问时禁用所有 OAuth 登录方式
+          const isDisabled = !isLocal;
+          return (
+            <div
+              key={provider.id}
+              style={isDisabled ? { opacity: 0.6, pointerEvents: 'none' } : undefined}
+            >
+              <Card
+                title={t(provider.titleKey)}
+                extra={
+                  <Button
+                    onClick={() => startAuth(provider.id)}
+                    loading={state.polling}
+                    disabled={isDisabled}
+                  >
+                    {t('common.login')}
+                  </Button>
+                }
+              >
+                <div className="hint">{t(provider.hintKey)}</div>
+                {isDisabled && (
+                  <div className="status-badge warning" style={{ marginTop: 8 }}>
+                    {t('auth_login.remote_access_disabled')}
+                  </div>
+                )}
+                {!isDisabled && state.url && (
+                  <div className="connection-box">
+                    <div className="label">{t(provider.urlLabelKey)}</div>
+                    <div className="value">{state.url}</div>
+                    <div className="item-actions" style={{ marginTop: 8 }}>
+                      <Button variant="secondary" size="sm" onClick={() => copyLink(state.url!)}>
+                        {t('auth_login.codex_copy_link')}
+                      </Button>
+                      <Button
+                        variant="secondary"
+                        size="sm"
+                        onClick={() => window.open(state.url, '_blank', 'noopener,noreferrer')}
+                      >
+                        {t('auth_login.codex_open_link')}
+                      </Button>
+                    </div>
+                  </div>
+                )}
+                {!isDisabled && state.status && state.status !== 'idle' && (
+                  <div className="status-badge" style={{ marginTop: 8 }}>
+                    {state.status === 'success'
+                      ? t('auth_login.codex_oauth_status_success')
+                      : state.status === 'error'
+                        ? `${t('auth_login.codex_oauth_status_error')} ${state.error || ''}`
+                        : t('auth_login.codex_oauth_status_waiting')}
+                  </div>
+                )}
+              </Card>
             </div>
+          );
+        })}
+
+        {/* iFlow Cookie 登录 */}
+        <Card
+          title={t('auth_login.iflow_cookie_title')}
+          extra={
+            <Button onClick={submitIflowCookie} loading={iflowCookie.loading}>
+              {t('auth_login.iflow_cookie_button')}
+            </Button>
+          }
+        >
+          <div className="hint">{t('auth_login.iflow_cookie_hint')}</div>
+          <div className="hint" style={{ marginTop: 4 }}>
+            {t('auth_login.iflow_cookie_key_hint')}
           </div>
-        )}
-      </Card>
+          <div className="form-item" style={{ marginTop: 12 }}>
+            <label className="label">{t('auth_login.iflow_cookie_label')}</label>
+            <Input
+              value={iflowCookie.cookie}
+              onChange={(e) => setIflowCookie((prev) => ({ ...prev, cookie: e.target.value }))}
+              placeholder={t('auth_login.iflow_cookie_placeholder')}
+            />
+          </div>
+          {iflowCookie.error && (
+            <div
+              className={`status-badge ${iflowCookie.errorType === 'warning' ? 'warning' : 'error'}`}
+              style={{ marginTop: 8 }}
+            >
+              {iflowCookie.errorType === 'warning'
+                ? t('auth_login.iflow_cookie_status_duplicate')
+                : t('auth_login.iflow_cookie_status_error')}{' '}
+              {iflowCookie.error}
+            </div>
+          )}
+          {iflowCookie.result && iflowCookie.result.status === 'ok' && (
+            <div className="connection-box" style={{ marginTop: 12 }}>
+              <div className="label">{t('auth_login.iflow_cookie_result_title')}</div>
+              <div className="key-value-list">
+                {iflowCookie.result.email && (
+                  <div className="key-value-item">
+                    <span className="key">{t('auth_login.iflow_cookie_result_email')}</span>
+                    <span className="value">{iflowCookie.result.email}</span>
+                  </div>
+                )}
+                {iflowCookie.result.expired && (
+                  <div className="key-value-item">
+                    <span className="key">{t('auth_login.iflow_cookie_result_expired')}</span>
+                    <span className="value">{iflowCookie.result.expired}</span>
+                  </div>
+                )}
+                {iflowCookie.result.saved_path && (
+                  <div className="key-value-item">
+                    <span className="key">{t('auth_login.iflow_cookie_result_path')}</span>
+                    <span className="value">{iflowCookie.result.saved_path}</span>
+                  </div>
+                )}
+                {iflowCookie.result.type && (
+                  <div className="key-value-item">
+                    <span className="key">{t('auth_login.iflow_cookie_result_type')}</span>
+                    <span className="value">{iflowCookie.result.type}</span>
+                  </div>
+                )}
+              </div>
+            </div>
+          )}
+        </Card>
+      </div>
     </div>
   );
 }

src/pages/Settings/Settings.module.scss

@@ -1,3 +1,5 @@
+@use '../../styles/mixins' as *;
+
 .container {
   width: 100%;
 }

src/pages/SettingsPage.tsx

@@ -7,6 +7,7 @@ import { Input } from '@/components/ui/Input';
 import { useAuthStore, useConfigStore, useNotificationStore } from '@/stores';
 import { configApi } from '@/services/api';
 import type { Config } from '@/types';
+import styles from './Settings/Settings.module.scss';
 
 type PendingKey =
   | 'debug'
@@ -168,8 +169,11 @@ export function SettingsPage() {
   const quotaSwitchPreview = config?.quotaExceeded?.switchPreviewModel ?? false;
 
   return (
-    <div className="grid cols-2">
-      <Card title={t('basic_settings.title')}>
+    <div className={styles.container}>
+      <h1 className={styles.pageTitle}>{t('basic_settings.title')}</h1>
+
+      <div className={styles.grid}>
+        <Card>
         {error && <div className="error-box">{error}</div>}
         <div style={{ display: 'flex', flexDirection: 'column', gap: 16 }}>
           <ToggleSwitch
@@ -326,6 +330,7 @@ export function SettingsPage() {
           />
         </div>
       </Card>
+      </div>
     </div>
   );
 }

src/pages/SystemPage.tsx

@@ -115,9 +115,11 @@ export function SystemPage() {
   }, [auth.connectionStatus, auth.apiBase]);
 
   return (
-    <div className="stack">
+    <div className={styles.container}>
+      <h1 className={styles.pageTitle}>{t('system_info.title')}</h1>
+      <div className={styles.content}>
       <Card
-        title={t('system_info.title')}
+        title={t('system_info.connection_status_title')}
         extra={
           <Button variant="secondary" size="sm" onClick={() => fetchConfig(undefined, true)}>
             {t('common.refresh')}
@@ -186,6 +188,7 @@ export function SystemPage() {
           </div>
         )}
       </Card>
+      </div>
     </div>
   );
 }

src/pages/UsagePage.tsx

@@ -72,6 +72,7 @@ export function UsagePage() {
   const [selectedModel, setSelectedModel] = useState('');
   const [promptPrice, setPromptPrice] = useState('');
   const [completionPrice, setCompletionPrice] = useState('');
+  const [cachePrice, setCachePrice] = useState('');
 
   // Expanded sections
   const [expandedApis, setExpandedApis] = useState<Set<string>>(new Set());
@@ -340,12 +341,14 @@ export function UsagePage() {
     if (!selectedModel) return;
     const prompt = parseFloat(promptPrice) || 0;
     const completion = parseFloat(completionPrice) || 0;
-    const newPrices = { ...modelPrices, [selectedModel]: { prompt, completion } };
+    const cache = cachePrice.trim() === '' ? prompt : parseFloat(cachePrice) || 0;
+    const newPrices = { ...modelPrices, [selectedModel]: { prompt, completion, cache } };
     setModelPrices(newPrices);
     saveModelPrices(newPrices);
     setSelectedModel('');
     setPromptPrice('');
     setCompletionPrice('');
+    setCachePrice('');
   };
 
   // Handle model price delete
@@ -362,6 +365,7 @@ export function UsagePage() {
     setSelectedModel(model);
     setPromptPrice(price?.prompt?.toString() || '');
     setCompletionPrice(price?.completion?.toString() || '');
+    setCachePrice(price?.cache?.toString() || '');
   };
 
   // Toggle API expansion
@@ -771,9 +775,11 @@ export function UsagePage() {
                     if (price) {
                       setPromptPrice(price.prompt.toString());
                       setCompletionPrice(price.completion.toString());
+                      setCachePrice(price.cache.toString());
                     } else {
                       setPromptPrice('');
                       setCompletionPrice('');
+                      setCachePrice('');
                     }
                   }}
                   className={styles.select}
@@ -804,6 +810,16 @@ export function UsagePage() {
                   step="0.0001"
                 />
               </div>
+              <div className={styles.formField}>
+                <label>{t('usage_stats.model_price_cache')} ($/1M)</label>
+                <Input
+                  type="number"
+                  value={cachePrice}
+                  onChange={(e) => setCachePrice(e.target.value)}
+                  placeholder="0.00"
+                  step="0.0001"
+                />
+              </div>
               <Button
                 variant="primary"
                 onClick={handleSavePrice}
@@ -826,6 +842,7 @@ export function UsagePage() {
                       <div className={styles.priceMeta}>
                         <span>{t('usage_stats.model_price_prompt')}: ${price.prompt.toFixed(4)}/1M</span>
                         <span>{t('usage_stats.model_price_completion')}: ${price.completion.toFixed(4)}/1M</span>
+                        <span>{t('usage_stats.model_price_cache')}: ${price.cache.toFixed(4)}/1M</span>
                       </div>
                     </div>
                     <div className={styles.priceActions}>