diff --git a/src/form/components/ColorPicker/index.tsx b/src/form/components/ColorPicker/index.tsx
index 07bc39543646..6b1cfc8dc702 100644
--- a/src/form/components/ColorPicker/index.tsx
+++ b/src/form/components/ColorPicker/index.tsx
@@ -1,15 +1,17 @@
-import type { PopoverProps, ColorPickerProps } from 'antd';
+import type { PopoverProps } from 'antd';
 import React from 'react';
 import { FieldColorPicker } from '../../../field';
 import { ProConfigProvider } from '../../../provider';
 import type { ProFormFieldItemProps } from '../../typing';
 import ProFromField from '../Field';
 
-export type ProFormColorPickerProps =
-  ProFormFieldItemProps<ColorPickerProps> & {
-    popoverProps?: PopoverProps;
-    colors?: string[];
-  };
+/** 使用宽松字段类型，避免 d.ts 生成时拉入 `@rc-component/color-picker` 导致 TS2742 */
+export type ProFormColorPickerProps = ProFormFieldItemProps<
+  Record<string, unknown>
+> & {
+  popoverProps?: PopoverProps;
+  colors?: string[];
+};
 
 /**
  * 颜色选择组件
diff --git a/src/layout/components/SiderMenu/SiderMenu.tsx b/src/layout/components/SiderMenu/SiderMenu.tsx
index ff983d1f4d3e..6c6c993e0d58 100644
--- a/src/layout/components/SiderMenu/SiderMenu.tsx
+++ b/src/layout/components/SiderMenu/SiderMenu.tsx
@@ -239,8 +239,8 @@ const SiderMenu: React.FC<SiderMenuProps & PrivateSiderMenuProps> = (props) => {
   }, [isMobile, layout]);
 
   const baseClassName = `${resolvedPrefixCls}-sider`;
-  const linkMenuBaseClassName = `${resolvedPrefixCls}-base-menu-inline`;
-  useBaseMenuStyle(linkMenuBaseClassName, 'inline');
+  const linkMenuBaseClassName = `${resolvedPrefixCls}-base-menu-sider`;
+  useBaseMenuStyle(linkMenuBaseClassName, 'vertical');
 
   const siderCssVarsStyle = useMemo(
     () => getProLayoutSiderCssVarsStyle(),
diff --git a/src/layout/components/SiderMenu/style/menu.ts b/src/layout/components/SiderMenu/style/menu.ts
index 1c647240afe9..eaee7cd52fca 100644
--- a/src/layout/components/SiderMenu/style/menu.ts
+++ b/src/layout/components/SiderMenu/style/menu.ts
@@ -88,7 +88,7 @@ function layoutNavCssVars(surface: 'sider' | 'header'): Record<string, string> {
       [navVar.itemRadius]: '6px',
       [navVar.itemGap]: '8px',
       [navVar.itemFontSize]: '14px',
-      [navVar.itemFontWeight]: '400',
+      [navVar.itemFontWeight]: '500',
       [navVar.itemPadBlock]: '6px',
       [navVar.itemPadInline]: `${padInline}px`,
       [navVar.stackGap]: `${stackGap}px`,
@@ -305,10 +305,13 @@ const genProLayoutBaseMenuStyle: GenerateStyle<ProLayoutBaseMenuToken> = (
           whiteSpace: 'nowrap',
         },
         '&-collapsed': {
-          minWidth: v('itemHeight'),
-          height: v('itemHeight'),
+          width: 'fit-content',
+          maxWidth: '100%',
+          minWidth: v('iconBox'),
+          height: 'auto',
           flexDirection: 'column',
-          justifyContent: 'center',
+          justifyContent: 'flex-start',
+          alignItems: 'flex-start',
           [`${c}-item-icon`]: {
             width: v('iconBox'),
             height: v('iconBox'),
@@ -317,7 +320,7 @@ const genProLayoutBaseMenuStyle: GenerateStyle<ProLayoutBaseMenuToken> = (
         },
         '&-collapsed-level-0': {
           flexDirection: 'column',
-          justifyContent: 'center',
+          justifyContent: 'flex-start',
         },
         [`&${c}-group-item-title`]: {
           gap: v('itemGap'),
@@ -330,10 +333,10 @@ const genProLayoutBaseMenuStyle: GenerateStyle<ProLayoutBaseMenuToken> = (
           [`&${c}-item-title-collapsed`]: {
             display: 'flex',
             flexDirection: 'column',
-            alignItems: 'center',
+            alignItems: 'flex-start',
             [`${c}-item-text`]: {
               display: 'inline',
-              textAlign: 'center',
+              textAlign: 'start',
               fontSize: 'calc(var(--ant-font-size, 14px) - 1px)',
               maxHeight: 12,
               lineHeight: '12px',
@@ -410,7 +413,7 @@ const genProLayoutBaseMenuStyle: GenerateStyle<ProLayoutBaseMenuToken> = (
           paddingInlineEnd: 0,
         },
         [`${c}-item-title`]: {
-          width: '100%',
+          width: 'fit-content',
           maxWidth: '100%',
           overflow: 'visible',
         },
@@ -418,13 +421,14 @@ const genProLayoutBaseMenuStyle: GenerateStyle<ProLayoutBaseMenuToken> = (
           backgroundColor: v('colorBgSelected'),
           borderRadius: v('itemRadius'),
         },
-        /** 侧栏收起：不展示分组标题，仅保留图标型菜单项 */
-        [`${c}-group ${c}-group-title`]: {
-          display: 'none',
-        },
       },
     },
 
+    /** 侧栏收起：不展示分组标题（完整选择器，避免嵌套编译差异） */
+    [`${c}--collapsed ${c}-group ${c}-group-title`]: {
+      display: 'none',
+    },
+
     [`${c}:not(${c}--horizontal)`]: {
       display: 'flex',
       flexDirection: 'column',
@@ -433,19 +437,6 @@ const genProLayoutBaseMenuStyle: GenerateStyle<ProLayoutBaseMenuToken> = (
       gap: v('stackGap'),
     },
 
-    /** vertical（侧栏收起）下标题区收窄为 20px 宽，便于在窄侧栏内居中 */
-    ...(mode === 'vertical'
-      ? {
-          [`&--collapsed ${c}-item-title-collapsed`]: {
-            width: 20,
-            minWidth: 20,
-            maxWidth: 20,
-            marginInline: 'auto',
-            alignSelf: 'center',
-          },
-        }
-      : {}),
-
     [`${c}--horizontal`]: {
       display: 'flex',
       flexDirection: 'row',
diff --git a/src/layout/components/SiderMenu/types.ts b/src/layout/components/SiderMenu/types.ts
index ee451a9bcbbf..23f0e45ffbde 100644
--- a/src/layout/components/SiderMenu/types.ts
+++ b/src/layout/components/SiderMenu/types.ts
@@ -9,14 +9,9 @@ import type {
 } from './navMenuTypes';
 
 /**
- * 主导航渲染模式（与历史 antd Menu `mode` 命名对齐）。
+ * 主导航渲染模式：顶栏 `horizontal`，侧栏 `vertical`（展开与收起均如此，收起时子菜单为弹出层）。
  */
-export type MenuMode =
-  | 'vertical'
-  | 'vertical-left'
-  | 'vertical-right'
-  | 'horizontal'
-  | 'inline';
+export type MenuMode = 'vertical' | 'horizontal';
 
 /**
  * 可合并到 `ProLayoutNavMenu` 根节点 `<nav>` 上的 DOM 属性。