diff --git a/app/components/LoginModal.jsx b/app/components/LoginModal.jsx
index 70d08be..f9e1dc8 100644
--- a/app/components/LoginModal.jsx
+++ b/app/components/LoginModal.jsx
@@ -1,7 +1,9 @@
 'use client';
 
+import Image from 'next/image';
 import { InputOTP, InputOTPGroup, InputOTPSlot } from '@/components/ui/input-otp';
 import { MailIcon } from './Icons';
+import githubImg from "../assets/github.svg";
 
 export default function LoginModal({
   onClose,
@@ -13,7 +15,8 @@ export default function LoginModal({
   loginError,
   loginSuccess,
   handleSendOtp,
-  handleVerifyEmailOtp
+  handleVerifyEmailOtp,
+  handleGithubLogin
 }) {
   return (
     <div
@@ -84,7 +87,6 @@ export default function LoginModal({
               type="button"
               className="button secondary"
               onClick={onClose}
-              disabled={loginLoading}
             >
               取消
             </button>
@@ -98,6 +100,53 @@ export default function LoginModal({
             </button>
           </div>
         </form>
+
+        {handleGithubLogin && (
+          <>
+            <div
+              className="login-divider"
+              style={{
+                display: 'flex',
+                alignItems: 'center',
+                margin: '20px 0',
+                gap: 12,
+              }}
+            >
+              <div style={{ flex: 1, height: 1, background: 'var(--border)' }} />
+              <span className="muted" style={{ fontSize: '12px', whiteSpace: 'nowrap' }}>或使用</span>
+              <div style={{ flex: 1, height: 1, background: 'var(--border)' }} />
+            </div>
+
+            <button
+              type="button"
+              className="github-login-btn"
+              onClick={handleGithubLogin}
+              disabled={loginLoading}
+              style={{
+                width: '100%',
+                display: 'flex',
+                alignItems: 'center',
+                justifyContent: 'center',
+                gap: 10,
+                padding: '12px 16px',
+                border: '1px solid var(--border)',
+                borderRadius: 8,
+                background: 'var(--bg)',
+                color: 'var(--text)',
+                cursor: loginLoading ? 'not-allowed' : 'pointer',
+                fontSize: '14px',
+                fontWeight: 500,
+                opacity: loginLoading ? 0.6 : 1,
+                transition: 'all 0.2s ease',
+              }}
+            >
+          <span className="github-icon-wrap">
+            <Image unoptimized alt="项目Github地址" src={githubImg} style={{ width: '24px', height: '24px', cursor: 'pointer' }} onClick={() => window.open("https://github.com/hzm0321/real-time-fund")} />
+          </span>
+              <span>使用 GitHub 登录</span>
+            </button>
+          </>
+        )}
       </div>
     </div>
   );
diff --git a/app/globals.css b/app/globals.css
index 933ccad..c97c74f 100644
--- a/app/globals.css
+++ b/app/globals.css
@@ -3348,6 +3348,35 @@ input[type="number"] {
   color: var(--success);
 }
 
+/* ========== GitHub 登录按钮样式 ========== */
+.github-login-btn {
+  backdrop-filter: blur(12px);
+  -webkit-backdrop-filter: blur(12px);
+}
+
+.github-login-btn:hover {
+  border-color: var(--primary);
+  background: rgba(34, 211, 238, 0.05);
+}
+
+.github-login-btn:active {
+  transform: scale(0.98);
+}
+
+[data-theme="light"] .github-login-btn {
+  background: #f8fafc;
+  border-color: #e2e8f0;
+}
+
+[data-theme="light"] .github-login-btn:hover {
+  background: #f1f5f9;
+  border-color: #94a3af;
+}
+
+[data-theme="light"] .github-login-btn img {
+  filter: brightness(0.2);
+}
+
 .button.secondary {
   background: transparent;
   border: 1px solid var(--border);
diff --git a/app/lib/supabase.js b/app/lib/supabase.js
index fce92de..fc34e66 100644
--- a/app/lib/supabase.js
+++ b/app/lib/supabase.js
@@ -33,6 +33,7 @@ const createNoopSupabase = () => ({
             data: { subscription: { unsubscribe: () => { } } }
         }),
         signInWithOtp: async () => ({ data: null, error: { message: 'Supabase not configured' } }),
+        signInWithOAuth: async () => ({ data: null, error: { message: 'Supabase not configured' } }),
         verifyOtp: async () => ({ data: null, error: { message: 'Supabase not configured' } }),
         signOut: async () => ({ error: null })
     },
diff --git a/app/page.jsx b/app/page.jsx
index 53891d5..1cc6be9 100644
--- a/app/page.jsx
+++ b/app/page.jsx
@@ -2415,6 +2415,29 @@ export default function HomePage() {
     setLoginLoading(false);
   };
 
+  const handleGithubLogin = async () => {
+    setLoginError('');
+    if (!isSupabaseConfigured) {
+      showToast('未配置 Supabase，无法登录', 'error');
+      return;
+    }
+    try {
+      isExplicitLoginRef.current = true;
+      setLoginLoading(true);
+      const { error } = await supabase.auth.signInWithOAuth({
+        provider: 'github',
+        options: {
+          redirectTo: window.location.origin
+        }
+      });
+      if (error) throw error;
+    } catch (err) {
+      setLoginError(err.message || 'GitHub 登录失败，请稍后再试');
+      isExplicitLoginRef.current = false;
+      setLoginLoading(false);
+    }
+  };
+
   // 登出
   const handleLogout = async () => {
     isLoggingOutRef.current = true;
@@ -3560,7 +3583,6 @@ export default function HomePage() {
 
   useEffect(() => {
     const isAnyModalOpen =
-      settingsOpen ||
       feedbackOpen ||
       addResultOpen ||
       addFundToGroupOpen ||
@@ -3596,7 +3618,6 @@ export default function HomePage() {
       containerRef.current.style.overflow = '';
     };
   }, [
-    settingsOpen,
     feedbackOpen,
     addResultOpen,
     addFundToGroupOpen,
@@ -4882,6 +4903,7 @@ export default function HomePage() {
             setLoginSuccess('');
             setLoginEmail('');
             setLoginOtp('');
+            setLoginLoading(false);
           }}
           loginEmail={loginEmail}
           setLoginEmail={setLoginEmail}
@@ -4892,6 +4914,7 @@ export default function HomePage() {
           loginSuccess={loginSuccess}
           handleSendOtp={handleSendOtp}
           handleVerifyEmailOtp={handleVerifyEmailOtp}
+          handleGithubLogin={isSupabaseConfigured ? handleGithubLogin : undefined}
         />
       )}