diff --git a/desunhui_logo.png b/desunhui_logo.png
new file mode 100644
index 0000000..06daa20
Binary files /dev/null and b/desunhui_logo.png differ
diff --git a/public/desunhui-logo.png b/public/desunhui-logo.png
new file mode 100644
index 0000000..06daa20
Binary files /dev/null and b/public/desunhui-logo.png differ
diff --git a/src/app/globals.css b/src/app/globals.css
index c9f7b19..7210114 100644
--- a/src/app/globals.css
+++ b/src/app/globals.css
@@ -612,6 +612,22 @@ body {
   width: 100%;
 }
 
+.footer-parent {
+  display: flex;
+  align-items: center;
+  opacity: 0.5;
+  transition: opacity 0.2s;
+}
+
+.footer-parent:hover {
+  opacity: 0.8;
+}
+
+.footer-parent-logo {
+  height: 20px;
+  width: auto;
+}
+
 .footer-copyright {
   font-size: 11px;
   color: var(--c-text-secondary);
@@ -1587,6 +1603,7 @@ body {
   font-weight: 600;
   letter-spacing: -1px;
   color: var(--c-text-white);
+  white-space: nowrap;
 }
 
 .parent-metric-label {
diff --git a/src/components/FlywheelSection.tsx b/src/components/FlywheelSection.tsx
index f216f5f..d4bf94c 100644
--- a/src/components/FlywheelSection.tsx
+++ b/src/components/FlywheelSection.tsx
@@ -27,8 +27,6 @@ export default async function FlywheelSection() {
     },
   ];
 
-  const summarySteps = [t("summary1"), t("summary2")];
-
   return (
     <section className="section section--dark">
       <div className="section-header">
@@ -54,15 +52,6 @@ export default async function FlywheelSection() {
           </div>
         ))}
       </div>
-
-      <div className="flywheel-summary">
-        {summarySteps.map((step, i) => (
-          <span key={step} className="flywheel-summary-item">
-            {i > 0 && <span className="flywheel-arrow">→</span>}
-            <span className="body-text body-text--muted">{step}</span>
-          </span>
-        ))}
-      </div>
     </section>
   );
 }
diff --git a/src/components/Footer.tsx b/src/components/Footer.tsx
index fa7d11d..ca04d34 100644
--- a/src/components/Footer.tsx
+++ b/src/components/Footer.tsx
@@ -61,6 +61,20 @@ export default async function Footer() {
       <div className="footer-divider" />
 
       <div className="footer-bottom">
+        <a
+          href="https://www.desunhui.com/"
+          className="footer-parent"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          {/* eslint-disable-next-line @next/next/no-img-element */}
+          <img
+            src="/desunhui-logo.png"
+            alt="DESUN 德商产投服务"
+            height={20}
+            className="footer-parent-logo"
+          />
+        </a>
         <span className="footer-copyright">{t("copyright")}</span>
       </div>
     </footer>