update pay function

src/views/AgentChat/index.js

@@ -674,8 +674,9 @@ const AgentChat = () => {
   ];
 
   return (
-    <Box h="100%" position="relative" overflow="hidden" zIndex={0}>
-      {/* 背景渐变层 */}
+    <Box minH="100vh" bg="gray.900">
+      <Flex h="calc(100vh - 72px)" overflow="hidden" position="relative">
+        {/* 背景渐变层 - 移到 Flex 内部 */}
         <Box
           position="absolute"
           top={0}
@@ -712,7 +713,6 @@ const AgentChat = () => {
           zIndex={0}
         />
 
-      <Flex h="calc(100vh - 72px)" overflow="hidden" position="relative" zIndex={1}>
         {/* 左侧栏 - 深色毛玻璃 */}
         <AnimatePresence>
           {isLeftSidebarOpen && (