diff --git a/src/App.tsx b/src/App.tsx
index 70ebc81..5e5b72d 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -350,7 +350,10 @@ function App() {
 
   return (
     <div className="ecommerce-standalone web-shell" data-theme="dark" data-ui-theme="dark-green" data-view="ecommerce">
-      <header className="ecommerce-standalone__topbar">
+      <header
+        className="ecommerce-standalone__topbar"
+        style={{ background: "transparent", border: "none", boxShadow: "none", backdropFilter: "none" }}
+      >
         <button type="button" className="ecommerce-standalone__brand" onClick={handleOpenWorkspace}>
           <span className="ecommerce-standalone__logo" aria-hidden="true">
             <img src="https://stringtest.oss-cn-hangzhou.aliyuncs.com/logo.png" alt="" />
@@ -366,6 +369,7 @@ function App() {
               <button
                 type="button"
                 className="ecommerce-profile-menu__trigger"
+                style={{ background: "transparent", border: "none", boxShadow: "none" }}
                 onClick={() => setProfileMenuOpen((open) => !open)}
                 aria-haspopup="dialog"
                 aria-expanded={profileMenuOpen}
diff --git a/src/styles/ecommerce-standalone.css b/src/styles/ecommerce-standalone.css
index 043e658..928e53b 100644
--- a/src/styles/ecommerce-standalone.css
+++ b/src/styles/ecommerce-standalone.css
@@ -17433,3 +17433,37 @@ html body #root .ecommerce-standalone.ecommerce-standalone .product-clone-page[d
     margin-left: 0 !important;
   }
 }
+
+/* Hide the topbar banner background while keeping brand and account in place. */
+html body #root div.ecommerce-standalone.web-shell[data-view="ecommerce"] .ecommerce-standalone__topbar {
+  border-bottom: none !important;
+  background: transparent !important;
+  box-shadow: none !important;
+  backdrop-filter: none !important;
+  -webkit-backdrop-filter: none !important;
+}
+
+html body #root div.ecommerce-standalone.web-shell[data-view="ecommerce"] .ecommerce-standalone__topbar::after {
+  content: none !important;
+}
+
+/* Keep topbar transparent and remove any background/border from inner controls. */
+html body #root div.ecommerce-standalone.web-shell[data-view="ecommerce"] .ecommerce-standalone__brand,
+html body #root div.ecommerce-standalone.web-shell[data-view="ecommerce"] .ecommerce-standalone__brand strong,
+html body #root div.ecommerce-standalone.web-shell[data-view="ecommerce"] .ecommerce-standalone__credits,
+html body #root div.ecommerce-standalone.web-shell[data-view="ecommerce"] .ecommerce-standalone__account button,
+html body #root div.ecommerce-standalone.web-shell[data-view="ecommerce"] .ecommerce-profile-menu__trigger {
+  color: #10202c !important;
+  background: transparent !important;
+  background-color: transparent !important;
+  background-image: none !important;
+  border: none !important;
+  border-color: transparent !important;
+  box-shadow: none !important;
+  backdrop-filter: none !important;
+  -webkit-backdrop-filter: none !important;
+}
+
+html body #root div.ecommerce-standalone.web-shell[data-view="ecommerce"] .ecommerce-standalone__credits {
+  color: #3a5a6a !important;
+}