diff --git a/src/App.tsx b/src/App.tsx
index 54f3770..548cfcc 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,33 +1,21 @@
-import { useCallback, useEffect, useState } from 'react';
+import { useEffect } from 'react';
 import { HashRouter, Route, Routes } from 'react-router-dom';
 import { LoginPage } from '@/pages/LoginPage';
 import { NotificationContainer } from '@/components/common/NotificationContainer';
 import { ConfirmationModal } from '@/components/common/ConfirmationModal';
-import { SplashScreen } from '@/components/common/SplashScreen';
 import { MainLayout } from '@/components/layout/MainLayout';
 import { ProtectedRoute } from '@/router/ProtectedRoute';
-import { useAuthStore, useLanguageStore, useThemeStore } from '@/stores';
-
-const SPLASH_DURATION = 1500;
-const SPLASH_FADE_DURATION = 400;
+import { useLanguageStore, useThemeStore } from '@/stores';
 
 function App() {
   const initializeTheme = useThemeStore((state) => state.initializeTheme);
   const language = useLanguageStore((state) => state.language);
   const setLanguage = useLanguageStore((state) => state.setLanguage);
-  const restoreSession = useAuthStore((state) => state.restoreSession);
-
-  const [splashReadyToFade, setSplashReadyToFade] = useState(false);
-  const [showSplash, setShowSplash] = useState(true);
-  const [authReady, setAuthReady] = useState(false);
 
   useEffect(() => {
     const cleanupTheme = initializeTheme();
-    void restoreSession().finally(() => {
-      setAuthReady(true);
-    });
     return cleanupTheme;
-  }, [initializeTheme, restoreSession]);
+  }, [initializeTheme]);
 
   useEffect(() => {
     setLanguage(language);
@@ -38,27 +26,6 @@ function App() {
     document.documentElement.lang = language;
   }, [language]);
 
-  useEffect(() => {
-    const timer = setTimeout(() => {
-      setSplashReadyToFade(true);
-    }, SPLASH_DURATION - SPLASH_FADE_DURATION);
-
-    return () => clearTimeout(timer);
-  }, []);
-
-  const handleSplashFinish = useCallback(() => {
-    setShowSplash(false);
-  }, []);
-
-  if (showSplash) {
-    return (
-      <SplashScreen
-        fadeOut={splashReadyToFade && authReady}
-        onFinish={handleSplashFinish}
-      />
-    );
-  }
-
   return (
     <HashRouter>
       <NotificationContainer />
diff --git a/src/pages/LoginPage.module.scss b/src/pages/LoginPage.module.scss
index 4203ca0..ece7621 100644
--- a/src/pages/LoginPage.module.scss
+++ b/src/pages/LoginPage.module.scss
@@ -37,9 +37,21 @@
   gap: 0;
 }
 
+// 品牌大字淡入动画
+@keyframes brandFadeIn {
+  from {
+    opacity: 0;
+    transform: translateY(-10px);
+  }
+  to {
+    opacity: var(--target-opacity, 0.9);
+    transform: translateY(0);
+  }
+}
+
 // 品牌大字
 .brandWord {
-  font-size: 13vw;
+  font-size: 14vw;
   font-weight: 900;
   color: rgba(255, 255, 255, 0.9);
   letter-spacing: -0.02em;
@@ -48,18 +60,23 @@
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
   text-align: right;
   padding-right: 0;
+  opacity: 0;
+  animation: brandFadeIn 0.8s ease-out forwards;
 
-  // 不同字有不同的透明度形成层次感
+  // 不同字有不同的透明度和延迟，从上到下依次显现
   &:nth-child(1) {
-    color: rgba(255, 255, 255, 0.95);
+    --target-opacity: 0.95;
+    animation-delay: 0.1s;
   }
 
   &:nth-child(2) {
-    color: rgba(255, 255, 255, 0.7);
+    --target-opacity: 0.7;
+    animation-delay: 0.35s;
   }
 
   &:nth-child(3) {
-    color: rgba(255, 255, 255, 0.45);
+    --target-opacity: 0.45;
+    animation-delay: 0.6s;
   }
 }
 
@@ -94,7 +111,7 @@
 .logo {
   width: 80px;
   height: 80px;
-  border-radius: $radius-full;
+  border-radius: $radius-lg;
   object-fit: cover;
   box-shadow: var(--shadow-lg);
   border: 3px solid var(--border-color);
@@ -211,24 +228,101 @@
   font-size: 14px;
 }
 
-// 自动登录提示
-.autoLoginBox {
-  background: var(--bg-secondary);
-  border: 1px dashed var(--border-color);
-  border-radius: $radius-md;
-  padding: $spacing-md;
-  display: flex;
-  flex-direction: column;
-  gap: $spacing-xs;
-  text-align: center;
+// ========== 启动动画（右侧） ==========
 
-  .label {
-    color: var(--text-secondary);
-    font-size: 14px;
+// 启动动画进入效果
+@keyframes splashEnter {
+  from {
+    opacity: 0;
+    transform: scale(0.9) translateY(20px);
   }
-
-  .value {
-    font-weight: 600;
-    color: var(--text-primary);
+  to {
+    opacity: 1;
+    transform: scale(1) translateY(0);
   }
 }
+
+// Logo 脉冲效果
+@keyframes splashLogoPulse {
+  0%,
+  100% {
+    transform: scale(1);
+  }
+  50% {
+    transform: scale(1.05);
+  }
+}
+
+// 加载条动画
+@keyframes splashLoading {
+  0% {
+    transform: scaleX(0);
+    transform-origin: left;
+  }
+  50% {
+    transform: scaleX(1);
+    transform-origin: left;
+  }
+  50.01% {
+    transform-origin: right;
+  }
+  100% {
+    transform: scaleX(0);
+    transform-origin: right;
+  }
+}
+
+// 启动动画内容容器
+.splashContent {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: $spacing-md;
+  animation: splashEnter 0.6s ease-out;
+}
+
+// 启动动画 Logo
+.splashLogo {
+  height: 80px;
+  width: auto;
+  border-radius: $radius-lg;
+  box-shadow: $shadow-lg;
+  animation: splashLogoPulse 1.5s ease-in-out infinite;
+}
+
+// 启动动画标题
+.splashTitle {
+  font-size: 28px;
+  font-weight: 800;
+  color: var(--text-primary);
+  margin: 0;
+  letter-spacing: -0.5px;
+}
+
+// 启动动画副标题
+.splashSubtitle {
+  font-size: 16px;
+  font-weight: 500;
+  color: var(--text-secondary);
+  margin: 0;
+  margin-top: -8px;
+}
+
+// 启动动画加载条容器
+.splashLoader {
+  width: 120px;
+  height: 3px;
+  background: var(--border-color);
+  border-radius: $radius-full;
+  overflow: hidden;
+  margin-top: $spacing-md;
+}
+
+// 启动动画加载条
+.splashLoaderBar {
+  width: 100%;
+  height: 100%;
+  background: var(--primary-color);
+  border-radius: $radius-full;
+  animation: splashLoading 1.2s ease-in-out infinite;
+}
diff --git a/src/pages/LoginPage.tsx b/src/pages/LoginPage.tsx
index 0022079..1f16ab0 100644
--- a/src/pages/LoginPage.tsx
+++ b/src/pages/LoginPage.tsx
@@ -30,6 +30,7 @@ export function LoginPage() {
   const [rememberPassword, setRememberPassword] = useState(false);
   const [loading, setLoading] = useState(false);
   const [autoLoading, setAutoLoading] = useState(true);
+  const [autoLoginSuccess, setAutoLoginSuccess] = useState(false);
   const [error, setError] = useState('');
 
   const detectedBase = useMemo(() => detectApiBaseFromLocation(), []);
@@ -39,18 +40,28 @@ export function LoginPage() {
     const init = async () => {
       try {
         const autoLoggedIn = await restoreSession();
-        if (!autoLoggedIn) {
+        if (autoLoggedIn) {
+          setAutoLoginSuccess(true);
+          // 延迟跳转，让用户看到成功动画
+          setTimeout(() => {
+            const redirect = (location.state as any)?.from?.pathname || '/';
+            navigate(redirect, { replace: true });
+          }, 1500);
+        } else {
           setApiBase(storedBase || detectedBase);
           setManagementKey(storedKey || '');
           setRememberPassword(storedRememberPassword || Boolean(storedKey));
         }
       } finally {
-        setAutoLoading(false);
+        if (!autoLoginSuccess) {
+          setAutoLoading(false);
+        }
       }
     };
 
     init();
-  }, [detectedBase, restoreSession, storedBase, storedKey, storedRememberPassword]);
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
 
   const handleSubmit = useCallback(async () => {
     if (!managementKey.trim()) {
@@ -88,11 +99,14 @@ export function LoginPage() {
     [loading, handleSubmit]
   );
 
-  if (isAuthenticated) {
+  if (isAuthenticated && !autoLoading && !autoLoginSuccess) {
     const redirect = (location.state as any)?.from?.pathname || '/';
     return <Navigate to={redirect} replace />;
   }
 
+  // 显示启动动画（自动登录中或自动登录成功）
+  const showSplash = autoLoading || autoLoginSuccess;
+
   return (
     <div className={styles.container}>
       {/* 左侧品牌展示区 */}
@@ -106,109 +120,115 @@ export function LoginPage() {
 
       {/* 右侧功能交互区 */}
       <div className={styles.formPanel}>
-        <div className={styles.formContent}>
-          {/* Logo */}
-          <img src={INLINE_LOGO_JPEG} alt="Logo" className={styles.logo} />
-
-          {/* 登录表单卡片 */}
-          <div className={styles.loginCard}>
-            <div className={styles.loginHeader}>
-              <div className={styles.titleRow}>
-                <div className={styles.title}>{t('title.login')}</div>
-                <Button
-                  type="button"
-                  variant="ghost"
-                  size="sm"
-                  className={styles.languageBtn}
-                  onClick={toggleLanguage}
-                  title={t('language.switch')}
-                  aria-label={t('language.switch')}
-                >
-                  {nextLanguageLabel}
-                </Button>
-              </div>
-              <div className={styles.subtitle}>{t('login.subtitle')}</div>
+        {showSplash ? (
+          /* 启动动画 */
+          <div className={styles.splashContent}>
+            <img src={INLINE_LOGO_JPEG} alt="CPAMC" className={styles.splashLogo} />
+            <h1 className={styles.splashTitle}>CLI Proxy API</h1>
+            <p className={styles.splashSubtitle}>Management Center</p>
+            <div className={styles.splashLoader}>
+              <div className={styles.splashLoaderBar} />
             </div>
-
-            <div className={styles.connectionBox}>
-              <div className={styles.label}>{t('login.connection_current')}</div>
-              <div className={styles.value}>{apiBase || detectedBase}</div>
-              <div className={styles.hint}>{t('login.connection_auto_hint')}</div>
-            </div>
-
-            <div className={styles.toggleAdvanced}>
-              <input
-                id="custom-connection-toggle"
-                type="checkbox"
-                checked={showCustomBase}
-                onChange={(e) => setShowCustomBase(e.target.checked)}
-              />
-              <label htmlFor="custom-connection-toggle">{t('login.custom_connection_label')}</label>
-            </div>
-
-            {showCustomBase && (
-              <Input
-                label={t('login.custom_connection_label')}
-                placeholder={t('login.custom_connection_placeholder')}
-                value={apiBase}
-                onChange={(e) => setApiBase(e.target.value)}
-                hint={t('login.custom_connection_hint')}
-              />
-            )}
-
-            <Input
-              autoFocus
-              label={t('login.management_key_label')}
-              placeholder={t('login.management_key_placeholder')}
-              type={showKey ? 'text' : 'password'}
-              value={managementKey}
-              onChange={(e) => setManagementKey(e.target.value)}
-              onKeyDown={handleSubmitKeyDown}
-              rightElement={
-                <button
-                  type="button"
-                  className="btn btn-ghost btn-sm"
-                  onClick={() => setShowKey((prev) => !prev)}
-                  aria-label={
-                    showKey
-                      ? t('login.hide_key', { defaultValue: '隐藏密钥' })
-                      : t('login.show_key', { defaultValue: '显示密钥' })
-                  }
-                  title={
-                    showKey
-                      ? t('login.hide_key', { defaultValue: '隐藏密钥' })
-                      : t('login.show_key', { defaultValue: '显示密钥' })
-                  }
-                >
-                  {showKey ? <IconEyeOff size={16} /> : <IconEye size={16} />}
-                </button>
-              }
-            />
-
-            <div className={styles.toggleAdvanced}>
-              <input
-                id="remember-password-toggle"
-                type="checkbox"
-                checked={rememberPassword}
-                onChange={(e) => setRememberPassword(e.target.checked)}
-              />
-              <label htmlFor="remember-password-toggle">{t('login.remember_password_label')}</label>
-            </div>
-
-            <Button fullWidth onClick={handleSubmit} loading={loading}>
-              {loading ? t('login.submitting') : t('login.submit_button')}
-            </Button>
-
-            {error && <div className={styles.errorBox}>{error}</div>}
-
-            {autoLoading && (
-              <div className={styles.autoLoginBox}>
-                <div className={styles.label}>{t('auto_login.title')}</div>
-                <div className={styles.value}>{t('auto_login.message')}</div>
-              </div>
-            )}
           </div>
-        </div>
+        ) : (
+          /* 登录表单 */
+          <div className={styles.formContent}>
+            {/* Logo */}
+            <img src={INLINE_LOGO_JPEG} alt="Logo" className={styles.logo} />
+
+            {/* 登录表单卡片 */}
+            <div className={styles.loginCard}>
+              <div className={styles.loginHeader}>
+                <div className={styles.titleRow}>
+                  <div className={styles.title}>{t('title.login')}</div>
+                  <Button
+                    type="button"
+                    variant="ghost"
+                    size="sm"
+                    className={styles.languageBtn}
+                    onClick={toggleLanguage}
+                    title={t('language.switch')}
+                    aria-label={t('language.switch')}
+                  >
+                    {nextLanguageLabel}
+                  </Button>
+                </div>
+                <div className={styles.subtitle}>{t('login.subtitle')}</div>
+              </div>
+
+              <div className={styles.connectionBox}>
+                <div className={styles.label}>{t('login.connection_current')}</div>
+                <div className={styles.value}>{apiBase || detectedBase}</div>
+                <div className={styles.hint}>{t('login.connection_auto_hint')}</div>
+              </div>
+
+              <div className={styles.toggleAdvanced}>
+                <input
+                  id="custom-connection-toggle"
+                  type="checkbox"
+                  checked={showCustomBase}
+                  onChange={(e) => setShowCustomBase(e.target.checked)}
+                />
+                <label htmlFor="custom-connection-toggle">{t('login.custom_connection_label')}</label>
+              </div>
+
+              {showCustomBase && (
+                <Input
+                  label={t('login.custom_connection_label')}
+                  placeholder={t('login.custom_connection_placeholder')}
+                  value={apiBase}
+                  onChange={(e) => setApiBase(e.target.value)}
+                  hint={t('login.custom_connection_hint')}
+                />
+              )}
+
+              <Input
+                autoFocus
+                label={t('login.management_key_label')}
+                placeholder={t('login.management_key_placeholder')}
+                type={showKey ? 'text' : 'password'}
+                value={managementKey}
+                onChange={(e) => setManagementKey(e.target.value)}
+                onKeyDown={handleSubmitKeyDown}
+                rightElement={
+                  <button
+                    type="button"
+                    className="btn btn-ghost btn-sm"
+                    onClick={() => setShowKey((prev) => !prev)}
+                    aria-label={
+                      showKey
+                        ? t('login.hide_key', { defaultValue: '隐藏密钥' })
+                        : t('login.show_key', { defaultValue: '显示密钥' })
+                    }
+                    title={
+                      showKey
+                        ? t('login.hide_key', { defaultValue: '隐藏密钥' })
+                        : t('login.show_key', { defaultValue: '显示密钥' })
+                    }
+                  >
+                    {showKey ? <IconEyeOff size={16} /> : <IconEye size={16} />}
+                  </button>
+                }
+              />
+
+              <div className={styles.toggleAdvanced}>
+                <input
+                  id="remember-password-toggle"
+                  type="checkbox"
+                  checked={rememberPassword}
+                  onChange={(e) => setRememberPassword(e.target.checked)}
+                />
+                <label htmlFor="remember-password-toggle">{t('login.remember_password_label')}</label>
+              </div>
+
+              <Button fullWidth onClick={handleSubmit} loading={loading}>
+                {loading ? t('login.submitting') : t('login.submit_button')}
+              </Button>
+
+              {error && <div className={styles.errorBox}>{error}</div>}
+            </div>
+          </div>
+        )}
       </div>
     </div>
   );