diff --git a/.vitepress/config.mts b/.vitepress/config.mts
index 5f5f4235..e979e1fe 100644
--- a/.vitepress/config.mts
+++ b/.vitepress/config.mts
@@ -43,7 +43,14 @@ export default defineConfig({
       {
         async: 'true',
         src: 'https://vueschool.io/banner.js?affiliate=NSCRIPT&type=top',
-      }  
+      }
+    ],
+    // The banner is fixed at z-index 99999 and covers DocSearch's input when
+    // the modal goes full-screen (DocSearch's 768px breakpoint).
+    [
+      'style',
+      {},
+      '@media (max-width:768px){body.DocSearch--active #bb-banner-container{display:none!important}}',
     ],
   ],
   ignoreDeadLinks: true,