diff --git a/src/global.less b/src/global.less
index e950f85..c7fc7f0 100644
--- a/src/global.less
+++ b/src/global.less
@@ -83,10 +83,12 @@ body {
   left: 220px !important; /* 侧边栏宽度 */
   z-index: 999 !important; /* 低于CustomHeader */
   margin: 0 !important;
-  padding: 12px 24px !important;
+  padding: 8px 24px !important;
   background: #ffffff !important;
   border-bottom: 1px solid #f0f0f0 !important;
   box-shadow: 0 1px 4px rgba(0,0,0,0.05) !important;
+  height: auto !important;
+  min-height: 48px !important;
 }
 
 // 当侧边栏折叠时，调整tabs header的left值
@@ -94,9 +96,21 @@ body {
   left: 64px !important;
 }
 
+// 强制PageContainer header样式
+.ant-pro-page-container .ant-pro-page-container-header {
+  position: fixed !important;
+  top: 64px !important;
+  right: 0 !important;
+  left: 220px !important;
+  z-index: 999 !important;
+  margin: 0 !important;
+  padding: 8px 24px !important;
+}
+
 // Tabs样式优化
 .ant-pro-page-container-header .tabs-header-only {
   margin: 0 !important;
+  line-height: 1 !important;
 }
 
 .ant-pro-page-container-header .ant-tabs {
@@ -107,12 +121,18 @@ body {
   margin-bottom: 0 !important;
 }
 
+.ant-pro-page-container-header .ant-tabs-nav-list {
+  margin-bottom: 0 !important;
+}
+
 .ant-pro-page-container-header .ant-tabs-tab {
   padding: 6px 12px !important;
   background: #f5f5f5;
   border-radius: 4px 4px 0 0;
   margin-right: 4px;
   transition: all 0.2s;
+  height: 32px !important;
+  line-height: 32px !important;
 }
 
 .ant-pro-page-container-header .ant-tabs-tab-active {
@@ -124,6 +144,15 @@ body {
   display: none !important;
 }
 
+// 移除PageContainer原有的间距
+.ant-pro-page-container {
+  padding-top: 0 !important;
+}
+
+.ant-pro-page-container-warp {
+  padding-top: 0 !important;
+}
+
 .custom-header .header-left {
   flex: 1;
 }