diff --git a/packages/ui/src/BasicLayout/Header/style/indexa.ts b/packages/ui/src/BasicLayout/Header/style/indexa.ts
deleted file mode 100644
index 622b787b0..000000000
--- a/packages/ui/src/BasicLayout/Header/style/indexa.ts
+++ /dev/null
@@ -1,94 +0,0 @@
-import { createStyles } from "antd-style";
-
-const useStyles = createStyles(({ token }) => {
-  return {
-    "@{prefix}": {
-      position: "fixed",
-      zIndex: "10",
-      width: "100%",
-      height: "48px",
-      padding: "10px 24px",
-      lineHeight: "48px",
-      backgroundColor: token.colorBgLayout,
-      boxShadow: "inset 0 -1px 0 0 #e2e8f3",
-    },
-    "@{prefix}-content": {
-      display: "flex",
-      alignItems: "center",
-      justifyContent: "space-between",
-      maxWidth: token.maxWidth,
-      height: "100%",
-      margin: "0 auto",
-    },
-    "@{prefix}-logo": {
-      height: "72px",
-      cursor: "pointer",
-    },
-    "@{prefix}-icon": {
-      width: "52px",
-      height: "48px",
-      lineHeight: "48px",
-      textAlign: "center",
-      borderRight: "1px solid #e2e8f3",
-      borderBottom: "1px solid #e2e8f3",
-      cursor: "pointer",
-      img: { height: "32px", marginTop: "8px" },
-    },
-    "@{prefix}-title": {
-      margin: "0 16px",
-    },
-    "@{prefix}-extra": {
-      display: "flex",
-      alignItems: "center",
-      justifyContent: "space-between",
-    },
-    "@{prefix}-extra-item": {
-      display: "inline-flex",
-      fontSize: "12px",
-      cursor: "pointer",
-    },
-    "@{prefix}-extra-icon-wrapper": {
-      width: "28px",
-      height: "28px",
-      lineHeight: "28px",
-      textAlign: "center",
-      border: "0.88px solid #ced4e1",
-      borderRadius: "14px",
-    },
-    "@{prefix}-extra-user-wrapper": {
-      height: "28px",
-      padding: "0 10px",
-      lineHeight: "28px",
-      border: "0.88px solid #ced4e1",
-      borderRadius: "14px",
-    },
-    "@{prefix}-extra-user-icon": {
-      marginRight: "6px",
-      marginBottom: "-2px",
-    },
-    "@{prefix}-welcome": {
-      color: "#fff",
-      backgroundColor: "transparent",
-      borderBottom: "none",
-    },
-    "@{prefixCls}-btn": {
-      color: "#fff",
-      backgroundColor: "rgba(255, 255, 255, 0.25)",
-      border: "0.5px solid rgba(0, 0, 0, 0.1)",
-    },
-    "@{prefix}-about": {
-      marginTop: "12px",
-    },
-    "@{prefix}-release-info": {
-      marginTop: "20px",
-      marginBottom: "50px",
-    },
-    "@{prefix}-copyright": {
-      color: "#000",
-      fontSize: "12px",
-      opacity: "0.45",
-    },
-  };
-});
-
-export default useStyles;