diff --git a/assets/css/components.css b/assets/css/components.css
index 170f293..da52a11 100644
--- a/assets/css/components.css
+++ b/assets/css/components.css
@@ -193,7 +193,7 @@
 
 .overlay-grid {
   display: grid;
-  grid-template-columns: repeat(4, minmax(0, 1fr));
+  grid-template-columns: repeat(5, minmax(0, 1fr));
   gap: 10px;
 }
 
diff --git a/assets/css/layout.css b/assets/css/layout.css
index 6514d1d..569a89f 100644
--- a/assets/css/layout.css
+++ b/assets/css/layout.css
@@ -53,7 +53,7 @@
 
 .services {
   display: grid;
-  grid-template-columns: repeat(4, minmax(0, 1fr));
+  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
   gap: 20px;
 }
 
diff --git a/index.html b/index.html
index c67a516..6892800 100644
--- a/index.html
+++ b/index.html
@@ -3,7 +3,7 @@
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
-    <meta name="description" content="sumi.work 服务入口，提供 FRP、Git、Syncthing 与 Gemini 等常用服务导航。" />
+    <meta name="description" content="sumi.work 服务入口，提供 FRP、Git、Syncthing、Gemini 与 DeepSeek 等常用服务导航。" />
     <meta name="theme-color" content="#f5f8ff" />
     <title>sumi.work - 服务入口</title>
     <link rel="stylesheet" href="assets/css/base.css" />
@@ -21,6 +21,7 @@
         <a href="#services">服务入口</a>
         <a href="#status">连接状态</a>
         <a href="https://gemini.google.com/app" target="_blank" rel="noreferrer">Gemini</a>
+        <a href="https://platform.deepseek.com/" target="_blank" rel="noreferrer">DeepSeek</a>
       </nav>
     </header>
 
@@ -35,7 +36,7 @@
 
           <div class="hero-actions">
             <a class="button primary" href="#services">查看服务</a>
-            <a class="button secondary" href="https://gemini.google.com/app" target="_blank" rel="noreferrer">打开 Gemini</a>
+            <a class="button secondary" href="https://platform.deepseek.com/" target="_blank" rel="noreferrer">打开 DeepSeek</a>
           </div>
 
           <div class="status-row" id="status" aria-label="服务状态">
@@ -57,6 +58,7 @@
               <span>Git</span>
               <span>Sync</span>
               <span>Gemini</span>
+              <span>DeepSeek</span>
             </div>
           </div>
         </aside>
@@ -113,6 +115,21 @@
               <span class="service-desc">Google AI 助手</span>
             </span>
           </a>
+
+          <a
+            class="service-card accent-deepseek"
+            href="https://platform.deepseek.com/"
+            target="_blank"
+            rel="noreferrer"
+            aria-label="打开 DeepSeek 开发平台"
+          >
+            <img src="assets/images/service-frp.jpg" alt="" loading="lazy" />
+            <span class="service-content">
+              <span class="service-icon">API</span>
+              <span class="service-title">DeepSeek</span>
+              <span class="service-desc">开发平台</span>
+            </span>
+          </a>
         </div>
       </section>
     </main>
