diff --git a/index.html b/index.html
index eb29026..a615f6a 100644
--- a/index.html
+++ b/index.html
@@ -765,7 +765,7 @@
                 </div>
                 
                 <!-- 中间：搜索框（PC端） -->
-                <div class="relative w-1/3 hidden md:block">
+                <div class="relative w-0 md:w-1/3 overflow-hidden md:overflow-visible">
                     <input type="text" id="search-input" placeholder="搜索省份、城市、企业..." class="search-input w-full py-2 px-5 rounded-full text-center text-sm placeholder-gray-400">
                 </div>