diff --git a/src/pages/download.astro b/src/pages/download.astro
index 65accbe..96ef2c5 100644
--- a/src/pages/download.astro
+++ b/src/pages/download.astro
@@ -72,7 +72,7 @@ import Footer from '../components/Footer.astro';
       </a>
 
       <!-- Web -->
-      <a href="https://zhixiai.com" target="_blank" class="download-card" style="background: rgba(255, 255, 255, 0.7); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid rgba(255, 255, 255, 0.9); border-radius: 1.25rem; padding: 32px; box-shadow: 0 20px 40px rgba(18, 26, 43, 0.04); text-decoration: none; display: flex; flex-direction: column; transition: transform 0.3s, box-shadow 0.3s;">
+      <a href="https://longde.cloud" target="_blank" class="download-card" style="background: rgba(255, 255, 255, 0.7); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid rgba(255, 255, 255, 0.9); border-radius: 1.25rem; padding: 32px; box-shadow: 0 20px 40px rgba(18, 26, 43, 0.04); text-decoration: none; display: flex; flex-direction: column; transition: transform 0.3s, box-shadow 0.3s;">
         <div style="width: 48px; height: 48px; border-radius: 12px; background: #f1f3ff; color: #1550d3; display: flex; align-items: center; justify-content: center; margin-bottom: 20px;">
           <span class="material-symbols-outlined" style="font-size: 28px;">language</span>
         </div>
diff --git a/src/pages/privacy.astro b/src/pages/privacy.astro
index dbf1da0..78e6050 100644
--- a/src/pages/privacy.astro
+++ b/src/pages/privacy.astro
@@ -160,7 +160,7 @@ const lastUpdated = '2026 年 5 月';
             <section id="section-9">
               <h2 style="font-family: 'Manrope', sans-serif; font-size: 28px; line-height: 1.3; font-weight: 600; color: #131b2c; margin-bottom: 24px;">联系我们</h2>
               <p style="font-family: 'Manrope', sans-serif; font-size: 16px; line-height: 1.6; font-weight: 400; color: #434654;">
-                如果您对本隐私政策或您的数据有任何疑问，请通过以下方式联系我们：<a href="mailto:privacy@zhixiai.com" style="color: #1550d3; text-decoration: none; hover: underline;">privacy@zhixiai.com</a>。
+                如果您对本隐私政策或您的数据有任何疑问，请通过以下方式联系我们：<a href="mailto:longdecloud@163.com" style="color: #1550d3; text-decoration: none; hover: underline;">longdecloud@163.com</a>。
               </p>
             </section>
 
diff --git a/src/pages/support.astro b/src/pages/support.astro
index 3da7c1f..d77d9bc 100644
--- a/src/pages/support.astro
+++ b/src/pages/support.astro
@@ -131,22 +131,22 @@ import Footer from '../components/Footer.astro';
         <div style="background: rgba(255, 255, 255, 0.7); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid rgba(255, 255, 255, 0.9); border-radius: 1.5rem; padding: 32px; box-shadow: 0 20px 40px rgba(18, 26, 43, 0.04);">
           <h3 style="font-family: 'Manrope', sans-serif; font-size: 20px; font-weight: 700; color: #131b2c; margin-bottom: 28px;">其他联系方式</h3>
           <div style="display: flex; flex-direction: column; gap: 24px;">
-            <a href="mailto:support@zhixiai.com" class="contact-item" style="display: flex; align-items: flex-start; gap: 14px; text-decoration: none; padding: 12px; border-radius: 12px; transition: background 0.2s;">
+            <a href="mailto:longdecloud@163.com" class="contact-item" style="display: flex; align-items: flex-start; gap: 14px; text-decoration: none; padding: 12px; border-radius: 12px; transition: background 0.2s;">
               <div style="width: 40px; height: 40px; border-radius: 12px; background: #f1f3ff; color: #1550d3; display: flex; align-items: center; justify-content: center; flex-shrink: 0;">
                 <span class="material-symbols-outlined" style="font-size: 20px;">mail</span>
               </div>
               <div>
                 <p style="font-family: 'Inter', sans-serif; font-size: 12px; font-weight: 600; color: #737686; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 2px;">邮箱</p>
-                <p style="font-family: 'Manrope', sans-serif; font-size: 15px; color: #131b2c; font-weight: 500;">support@zhixiai.com</p>
+                <p style="font-family: 'Manrope', sans-serif; font-size: 15px; color: #131b2c; font-weight: 500;">longdecloud@163.com</p>
               </div>
             </a>
-            <a href="https://zhixiai.com" target="_blank" class="contact-item" style="display: flex; align-items: flex-start; gap: 14px; text-decoration: none; padding: 12px; border-radius: 12px; transition: background 0.2s;">
+            <a href="https://longde.cloud" target="_blank" class="contact-item" style="display: flex; align-items: flex-start; gap: 14px; text-decoration: none; padding: 12px; border-radius: 12px; transition: background 0.2s;">
               <div style="width: 40px; height: 40px; border-radius: 12px; background: #f1f3ff; color: #1550d3; display: flex; align-items: center; justify-content: center; flex-shrink: 0;">
                 <span class="material-symbols-outlined" style="font-size: 20px;">language</span>
               </div>
               <div>
                 <p style="font-family: 'Inter', sans-serif; font-size: 12px; font-weight: 600; color: #737686; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 2px;">官网</p>
-                <p style="font-family: 'Manrope', sans-serif; font-size: 15px; color: #131b2c; font-weight: 500;">zhixiai.com</p>
+                <p style="font-family: 'Manrope', sans-serif; font-size: 15px; color: #131b2c; font-weight: 500;">longde.cloud</p>
               </div>
             </a>
             <a href="/changelog" class="contact-item" style="display: flex; align-items: flex-start; gap: 14px; text-decoration: none; padding: 12px; border-radius: 12px; transition: background 0.2s;">