diff --git a/components/__tests__/ToolCard.test.tsx b/components/__tests__/ToolCard.test.tsx
index 63d3c83..01c83d6 100644
--- a/components/__tests__/ToolCard.test.tsx
+++ b/components/__tests__/ToolCard.test.tsx
@@ -2,7 +2,7 @@ import { beforeEach, describe, expect, it, vi } from 'vitest';
 import { act, fireEvent, render, screen } from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
 import ToolCard from '@/pages/Dashboard/ToolCard';
-import AccessTimeIcon from '@mui/icons-material/AccessTime';
+import { Clock } from 'lucide-react';
 
 describe('ToolCard 组件', () => {
   beforeEach(() => {
@@ -16,7 +16,7 @@ describe('ToolCard 组件', () => {
           title="测试工具"
           description="这是一个测试工具"
           colorKey="primary"
-          icon={AccessTimeIcon}
+          icon={Clock}
           onClick={() => {}}
         />,
       );
@@ -26,16 +26,14 @@ describe('ToolCard 组件', () => {
     });
 
     it('无描述时仅渲染标题', () => {
-      render(
-        <ToolCard title="仅标题" colorKey="primary" icon={AccessTimeIcon} onClick={() => {}} />,
-      );
+      render(<ToolCard title="仅标题" colorKey="primary" icon={Clock} onClick={() => {}} />);
 
       expect(screen.getByText('仅标题')).toBeInTheDocument();
     });
 
     it('应渲染图标', () => {
       const { container } = render(
-        <ToolCard title="带图标" colorKey="primary" icon={AccessTimeIcon} onClick={() => {}} />,
+        <ToolCard title="带图标" colorKey="primary" icon={Clock} onClick={() => {}} />,
       );
 
       const svgElement = container.querySelector('svg');
@@ -47,7 +45,7 @@ describe('ToolCard 组件', () => {
         <ToolCard
           title="带快照"
           colorKey="primary"
-          icon={AccessTimeIcon}
+          icon={Clock}
           onClick={() => {}}
           snapshot={<div data-testid="snapshot">快照内容</div>}
         />,
@@ -58,16 +56,14 @@ describe('ToolCard 组件', () => {
 
     it('未提供快照时不渲染快照区域', () => {
       const { container } = render(
-        <ToolCard title="无快照" colorKey="primary" icon={AccessTimeIcon} onClick={() => {}} />,
+        <ToolCard title="无快照" colorKey="primary" icon={Clock} onClick={() => {}} />,
       );
 
       expect(container.querySelector('[data-testid="snapshot"]')).not.toBeInTheDocument();
     });
 
     it('应使用 CardActionArea 渲染，支持键盘聚焦', () => {
-      render(
-        <ToolCard title="可聚焦" colorKey="primary" icon={AccessTimeIcon} onClick={() => {}} />,
-      );
+      render(<ToolCard title="可聚焦" colorKey="primary" icon={Clock} onClick={() => {}} />);
 
       const button = screen.getByRole('button', { name: /可聚焦/ });
       expect(button).toBeInTheDocument();
@@ -78,9 +74,7 @@ describe('ToolCard 组件', () => {
   describe('交互测试', () => {
     it('点击时应调用 onClick', () => {
       const handleClick = vi.fn();
-      render(
-        <ToolCard title="可点击" colorKey="primary" icon={AccessTimeIcon} onClick={handleClick} />,
-      );
+      render(<ToolCard title="可点击" colorKey="primary" icon={Clock} onClick={handleClick} />);
 
       const button = screen.getByRole('button', { name: /可点击/ });
       fireEvent.click(button);
@@ -90,14 +84,7 @@ describe('ToolCard 组件', () => {
 
     it('按 Enter 键时应调用 onClick', async () => {
       const handleClick = vi.fn();
-      render(
-        <ToolCard
-          title="键盘可触发"
-          colorKey="primary"
-          icon={AccessTimeIcon}
-          onClick={handleClick}
-        />,
-      );
+      render(<ToolCard title="键盘可触发" colorKey="primary" icon={Clock} onClick={handleClick} />);
 
       const button = screen.getByRole('button', { name: /键盘可触发/ });
       await act(async () => {
@@ -112,7 +99,7 @@ describe('ToolCard 组件', () => {
   describe('样式测试', () => {
     it('应应用自定义颜色代码', () => {
       const { container } = render(
-        <ToolCard title="自定义颜色" colorKey="warning" icon={AccessTimeIcon} onClick={() => {}} />,
+        <ToolCard title="自定义颜色" colorKey="warning" icon={Clock} onClick={() => {}} />,
       );
 
       const svgElement = container.querySelector('svg');
diff --git a/config/features.tsx b/config/features.tsx
index 270c396..3f2def8 100644
--- a/config/features.tsx
+++ b/config/features.tsx
@@ -1,15 +1,17 @@
 import { type ComponentType, lazy } from 'react';
-import type { SvgIconProps } from '@mui/material/SvgIcon';
+import type { LucideProps } from 'lucide-react';
 import type { PageType } from '@/types/storage';
-import { Clock } from 'lucide-react';
-import StorageIcon from '@mui/icons-material/Storage';
-import QrCodeIcon from '@mui/icons-material/QrCode';
-import DescriptionIcon from '@mui/icons-material/Description';
-import VpnKeyIcon from '@mui/icons-material/VpnKey';
-import CompareArrowsIcon from '@mui/icons-material/CompareArrows';
-import TransformIcon from '@mui/icons-material/Transform';
-import CodeIcon from '@mui/icons-material/Code';
-import ArticleIcon from '@mui/icons-material/Article';
+import {
+  Clock,
+  Database,
+  QrCode,
+  FileText,
+  Key,
+  GitCompareArrows,
+  ArrowLeftRight,
+  Code,
+  File,
+} from 'lucide-react';
 
 export type PaletteColorKey = 'primary' | 'success' | 'warning' | 'error' | 'secondary' | 'info';
 
@@ -25,31 +27,16 @@ const Base64ConverterPage = lazy(() => import('@/pages/Base64Converter'));
 const MarkdownToHtmlPage = lazy(() => import('@/pages/MarkdownToHtml'));
 const HtmlToMarkdownPage = lazy(() => import('@/pages/HtmlToMarkdown'));
 
-/**
- * 功能配置接口
- *
- * 整合了路由信息和仪表盘卡片元数据，作为功能的单一事实来源
- */
 export interface FeatureConfig {
-  /** 页面类型标识 */
   key: PageType;
-  /** 功能名称翻译键 */
   labelKey: string;
-  /** 功能描述翻译键 */
   descriptionKey: string;
-  /** 主题颜色键（用于仪表盘卡片，映射到 theme.palette[key].main） */
   themeColorKey?: PaletteColorKey;
-  /** 图标组件引用（用于仪表盘卡片，按需实例化） */
-  icon?: ComponentType<SvgIconProps>;
-  /** 默认是否在仪表盘显示 */
+  icon?: ComponentType<LucideProps>;
   defaultVisible: boolean;
-  /** 不同显示模式对应的组件 */
   components: {
-    /** 弹窗模式组件 */
     popup: ComponentType;
-    /** 侧边栏模式组件 */
     sidepanel: ComponentType;
-    /** 标签页模式组件 */
     tab: ComponentType;
   };
 }
@@ -84,7 +71,7 @@ export const FEATURES: FeatureConfig[] = [
     labelKey: 'features:storageCleaner.title',
     descriptionKey: 'features:storageCleaner.description',
     themeColorKey: 'warning',
-    icon: StorageIcon,
+    icon: Database,
     defaultVisible: true,
     components: {
       popup: StorageCleanerPage,
@@ -97,7 +84,7 @@ export const FEATURES: FeatureConfig[] = [
     labelKey: 'features:qrCode.title',
     descriptionKey: 'features:qrCode.description',
     themeColorKey: 'success',
-    icon: QrCodeIcon,
+    icon: QrCode,
     defaultVisible: true,
     components: {
       popup: QrCodePage,
@@ -110,7 +97,7 @@ export const FEATURES: FeatureConfig[] = [
     labelKey: 'features:textStatistics.title',
     descriptionKey: 'features:textStatistics.description',
     themeColorKey: 'secondary',
-    icon: DescriptionIcon,
+    icon: FileText,
     defaultVisible: true,
     components: {
       popup: TextStatisticsPage,
@@ -123,7 +110,7 @@ export const FEATURES: FeatureConfig[] = [
     labelKey: 'features:jwt.title',
     descriptionKey: 'features:jwt.description',
     themeColorKey: 'info',
-    icon: VpnKeyIcon,
+    icon: Key,
     defaultVisible: true,
     components: {
       popup: JwtPage,
@@ -136,7 +123,7 @@ export const FEATURES: FeatureConfig[] = [
     labelKey: 'features:jsonDiff.title',
     descriptionKey: 'features:jsonDiff.description',
     themeColorKey: 'primary',
-    icon: CompareArrowsIcon,
+    icon: GitCompareArrows,
     defaultVisible: true,
     components: {
       popup: JsonToolsPage,
@@ -149,7 +136,7 @@ export const FEATURES: FeatureConfig[] = [
     labelKey: 'features:base64Converter.title',
     descriptionKey: 'features:base64Converter.description',
     themeColorKey: 'info',
-    icon: TransformIcon,
+    icon: ArrowLeftRight,
     defaultVisible: true,
     components: {
       popup: Base64ConverterPage,
@@ -162,7 +149,7 @@ export const FEATURES: FeatureConfig[] = [
     labelKey: 'features:markdownToHtml.title',
     descriptionKey: 'features:markdownToHtml.description',
     themeColorKey: 'secondary',
-    icon: CodeIcon,
+    icon: Code,
     defaultVisible: true,
     components: {
       popup: MarkdownToHtmlPage,
@@ -175,7 +162,7 @@ export const FEATURES: FeatureConfig[] = [
     labelKey: 'features:htmlToMarkdown.title',
     descriptionKey: 'features:htmlToMarkdown.description',
     themeColorKey: 'secondary',
-    icon: ArticleIcon,
+    icon: File,
     defaultVisible: true,
     components: {
       popup: HtmlToMarkdownPage,
diff --git a/entrypoints/options/App.tsx b/entrypoints/options/App.tsx
index 4b15a30..9f9d8ba 100644
--- a/entrypoints/options/App.tsx
+++ b/entrypoints/options/App.tsx
@@ -1,20 +1,5 @@
 import { SyntheticEvent, useEffect, useMemo, useState } from 'react';
-import {
-  alpha,
-  Box,
-  CircularProgress,
-  IconButton,
-  Paper,
-  Stack,
-  Switch,
-  Tab,
-  Tabs,
-  Tooltip,
-  Typography,
-} from '@mui/material';
-import SettingsIcon from '@mui/icons-material/Settings';
-import RefreshIcon from '@mui/icons-material/Refresh';
-import DragIndicatorIcon from '@mui/icons-material/DragIndicator';
+import { Settings, RefreshCw, GripVertical } from 'lucide-react';
 import {
   DndContext,
   closestCenter,
@@ -43,12 +28,19 @@ import {
 import GlobalSnackbar, { useSnackbarState } from '@/components/GlobalSnackbar';
 import PageErrorBoundary from '@/components/PageErrorBoundary';
 import PageHeader from '@/components/PageHeader';
-import { useTheme, type PaletteColor, type Theme } from '@mui/material/styles';
 import { useTranslation } from 'react-i18next';
 import type { PaletteColorKey } from '@/config/features';
 
-const getPaletteColor = (theme: Theme, key: PaletteColorKey): PaletteColor =>
-  (theme.palette as unknown as Record<string, PaletteColor>)[key];
+const PALETTE_COLORS: Record<PaletteColorKey, string> = {
+  primary: '#1976d2',
+  success: '#2e7d32',
+  warning: '#e65100',
+  error: '#c62828',
+  secondary: '#9c27b0',
+  info: '#0288d1',
+};
+
+const getColorCode = (key: PaletteColorKey): string => PALETTE_COLORS[key];
 
 const isValidPage = (page: unknown): page is PageType => {
   return typeof page === 'string' && (getAllFeatureKeys() as string[]).includes(page);
@@ -75,7 +67,6 @@ function SortableFeatureRow({
   isDisabled,
   onToggle,
 }: SortableFeatureRowProps) {
-  const theme = useTheme();
   const { t } = useTranslation(['features']);
   const { attributes, listeners, setNodeRef, transform, transition, isDragging } = useSortable({
     id: pageKey,
@@ -85,131 +76,85 @@ function SortableFeatureRow({
   if (!feature) return null;
 
   const colorKey = feature.themeColorKey ?? 'primary';
-  const colorCode = getPaletteColor(theme, colorKey).main;
+  const colorCode = getColorCode(colorKey);
 
   const style = {
     transform: CSS.Transform.toString(transform),
     transition,
     zIndex: isDragging ? 1 : 'auto',
     position: 'relative' as const,
+    backgroundColor: isDragging ? `${colorCode}0a` : 'transparent',
+    boxShadow: isDragging ? '0 8px 20px rgba(0,0,0,0.08)' : 'none',
   };
 
   return (
-    <Box
+    <div
       ref={setNodeRef}
       style={style}
-      sx={{
-        display: 'flex',
-        alignItems: 'center',
-        justifyContent: 'space-between',
-        p: { xs: 2, sm: 2.5 },
-        borderBottom: isLast ? 'none' : '1px solid',
-        borderColor: 'divider',
-        bgcolor: isDragging ? alpha(colorCode, 0.04) : 'transparent',
-        boxShadow: isDragging ? `0 8px 20px ${alpha('#000', 0.08)}` : 'none',
-        transition: 'background-color 0.2s, box-shadow 0.2s',
-        '&:hover': {
-          bgcolor: alpha(colorCode, 0.02),
-        },
-        '&:hover .drag-handle': {
-          color: 'text.secondary',
-        },
-      }}
+      className={`flex items-center justify-between p-4 sm:p-5 transition-all duration-200 hover:bg-gray-50 ${
+        isLast ? '' : 'border-b border-gray-200'
+      }`}
     >
-      <Stack
-        direction="row"
-        spacing={{ xs: 1.5, sm: 2 }}
-        alignItems="center"
-        sx={{ flex: 1, minWidth: 0 }}
-      >
-        {/* 拖拽手柄 - 整行可拖,手柄是视觉暗示 */}
-        <Box
-          className="drag-handle"
+      <div className="flex items-center gap-3 sm:gap-4 flex-1 min-w-0">
+        {/* 拖拽手柄 */}
+        <div
+          className="drag-handle text-gray-300 cursor-grab touch-none transition-colors duration-200 hover:text-gray-500 active:cursor-grabbing"
           {...attributes}
           {...listeners}
-          sx={{
-            color: alpha(theme.palette.text.primary, 0.2),
-            display: 'flex',
-            cursor: 'grab',
-            touchAction: 'none',
-            transition: 'color 0.2s',
-            '&:active': { cursor: 'grabbing' },
-            '&:hover': { color: 'text.secondary' },
-          }}
           aria-label={`拖拽以调整 ${t(feature.labelKey)} 的位置`}
         >
-          <DragIndicatorIcon fontSize="small" />
-        </Box>
+          <GripVertical size={16} />
+        </div>
 
         {/* 功能图标 */}
-        <Box
-          sx={{
-            width: 36,
-            height: 36,
-            borderRadius: 2.5,
-            bgcolor: alpha(colorCode, 0.1),
+        <div
+          className="flex items-center justify-center w-9 h-9 rounded-xl flex-shrink-0"
+          style={{
+            backgroundColor: `${colorCode}1a`,
             color: colorCode,
-            display: 'flex',
-            alignItems: 'center',
-            justifyContent: 'center',
-            flexShrink: 0,
           }}
         >
-          {feature.icon && <feature.icon sx={{ fontSize: 20 }} />}
-        </Box>
+          {feature.icon && <feature.icon size={20} />}
+        </div>
 
         {/* 文本信息 */}
-        <Box sx={{ minWidth: 0, flex: 1 }}>
-          <Typography
-            variant="subtitle2"
-            sx={{
-              fontWeight: 700,
-              color: 'text.primary',
-              fontSize: '0.95rem',
-              lineHeight: 1.3,
-            }}
-          >
+        <div className="min-w-0 flex-1">
+          <div className="font-bold text-[0.95rem] leading-tight text-gray-900">
             {t(feature.labelKey)}
-          </Typography>
+          </div>
           {feature.descriptionKey && (
-            <Tooltip title={t(feature.descriptionKey)} placement="top-start" enterDelay={400}>
-              <Typography
-                variant="caption"
-                color="text.secondary"
-                sx={{
-                  fontWeight: 500,
-                  mt: 0.25,
-                  display: '-webkit-box',
-                  WebkitBoxOrient: 'vertical',
-                  WebkitLineClamp: 1,
-                  overflow: 'hidden',
-                  textOverflow: 'ellipsis',
-                  wordBreak: 'break-word',
-                }}
-              >
-                {t(feature.descriptionKey)}
-              </Typography>
-            </Tooltip>
+            <div
+              className="text-xs text-gray-500 font-medium mt-0.5 overflow-hidden text-ellipsis whitespace-nowrap"
+              title={t(feature.descriptionKey)}
+            >
+              {t(feature.descriptionKey)}
+            </div>
           )}
-        </Box>
-      </Stack>
+        </div>
+      </div>
 
-      <Switch
-        color="primary"
-        checked={isChecked}
-        onChange={() => onToggle(pageKey)}
+      {/* 开关 */}
+      <button
+        type="button"
+        role="switch"
+        aria-checked={isChecked}
         disabled={isDisabled}
-      />
-    </Box>
+        onClick={() => onToggle(pageKey)}
+        className={`relative inline-flex h-6 w-11 items-center rounded-full transition-colors duration-200 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 ${
+          isChecked ? 'bg-blue-600' : 'bg-gray-200'
+        } ${isDisabled ? 'opacity-50 cursor-not-allowed' : 'cursor-pointer'}`}
+      >
+        <span
+          className={`inline-block h-4 w-4 transform rounded-full bg-white transition-transform duration-200 ${
+            isChecked ? 'translate-x-6' : 'translate-x-1'
+          }`}
+        />
+      </button>
+    </div>
   );
 }
 
-/**
- * Options 设置页面主组件
- * 支持对不同窗口入口的功能显示和排序进行独立配置
- */
 export default function App() {
-  const theme = useTheme();
   const { t } = useTranslation(['features', 'common']);
 
   const initialWindowType = useMemo(() => {
@@ -360,120 +305,64 @@ export default function App() {
 
   if (!isLoaded) {
     return (
-      <Box
-        sx={{ display: 'flex', justifyContent: 'center', alignItems: 'center', minHeight: '100vh' }}
-      >
-        <CircularProgress size={24} />
-      </Box>
+      <div className="flex justify-center items-center min-h-screen">
+        <div className="w-6 h-6 border-2 border-blue-600 border-t-transparent rounded-full animate-spin" />
+      </div>
     );
   }
 
   return (
-    <Box
-      className="app"
-      sx={{
-        minHeight: '100vh',
-        bgcolor: 'background.default',
-        display: 'flex',
-        flexDirection: 'column',
-      }}
-    >
+    <div className="app min-h-screen bg-gray-50 flex flex-col">
       <PageErrorBoundary>
         {/* 顶部标题与导航栏 */}
-        <Box
-          sx={{
-            width: '100%',
-            bgcolor: 'background.paper',
-            borderBottom: '1px solid',
-            borderColor: 'divider',
-            pt: { xs: 3, sm: 5 },
-            pb: 0,
-            px: { xs: 2, sm: 4 },
-          }}
-        >
-          <Box sx={{ maxWidth: 800, mx: 'auto' }}>
+        <div className="w-full bg-white border-b border-gray-200 pt-8 sm:pt-12 pb-0 px-4 sm:px-8">
+          <div className="max-w-3xl mx-auto">
             <PageHeader
-              icon={<SettingsIcon />}
-              iconColor={theme.palette.primary.main}
+              icon={<Settings size={20} />}
+              iconColor="#1976d2"
               title="应用设置"
               subtitle="针对不同窗口类型独立配置 Dashboard 中显示的功能及其排序"
               sx={{ marginBottom: '1rem' }}
             />
             {/* Tab 与恢复按钮同行 */}
-            <Stack
-              direction="row"
-              alignItems="flex-end"
-              justifyContent="space-between"
-              sx={{ borderBottom: 'none' }}
-            >
-              <Tabs
-                value={windowType}
-                onChange={handleWindowTypeChange}
-                indicatorColor="primary"
-                textColor="primary"
-                sx={{
-                  flex: 1,
-                  minHeight: 'auto',
-                  '& .MuiTab-root': {
-                    fontWeight: 700,
-                    fontSize: '0.9rem',
-                    textTransform: 'none',
-                    minWidth: { xs: 100, sm: 140 },
-                    letterSpacing: '0.3px',
-                  },
-                  '& .MuiTabs-indicator': {
-                    height: 3,
-                    borderRadius: '3px 3px 0 0',
-                  },
-                }}
+            <div className="flex items-end justify-between border-b-0">
+              <div className="flex-1 flex">
+                {(['popup', 'sidepanel', 'tab'] as WindowType[]).map((type) => (
+                  <button
+                    key={type}
+                    onClick={(e) => handleWindowTypeChange(e, type)}
+                    className={`px-4 sm:px-6 py-2 text-[0.9rem] font-bold transition-colors duration-200 ${
+                      windowType === type
+                        ? 'text-blue-600 border-b-2 border-blue-600'
+                        : 'text-gray-500 hover:text-gray-700'
+                    }`}
+                  >
+                    {type === 'popup' ? 'Popup 窗口' : type === 'sidepanel' ? '侧边栏' : '标签页'}
+                  </button>
+                ))}
+              </div>
+              <button
+                onClick={handleRestoreDefaults}
+                className="mb-1 ml-2 p-1.5 text-gray-500 hover:text-blue-600 hover:bg-blue-50 rounded-lg transition-colors duration-200"
+                title="恢复当前模式默认"
               >
-                <Tab value="popup" label="Popup 窗口" />
-                <Tab value="sidepanel" label="侧边栏" />
-                <Tab value="tab" label="标签页" />
-              </Tabs>
-              <Tooltip title="恢复当前模式默认" placement="top">
-                <IconButton
-                  onClick={handleRestoreDefaults}
-                  size="small"
-                  sx={{
-                    mb: 1,
-                    ml: 1,
-                    color: 'text.secondary',
-                    '&:hover': {
-                      color: 'primary.main',
-                      bgcolor: alpha(theme.palette.primary.main, 0.08),
-                    },
-                  }}
-                  aria-label="恢复当前模式默认"
-                >
-                  <RefreshIcon fontSize="small" />
-                </IconButton>
-              </Tooltip>
-            </Stack>
-          </Box>
-        </Box>
+                <RefreshCw size={16} />
+              </button>
+            </div>
+          </div>
+        </div>
 
         {/* 主内容区域 */}
-        <Box sx={{ flex: 1, p: { xs: 2, sm: 4 } }}>
-          <Box sx={{ maxWidth: 800, mx: 'auto' }}>
-            <Paper
-              elevation={0}
-              sx={{
-                borderRadius: 4,
-                border: '1px solid',
-                borderColor: 'divider',
-                overflow: 'hidden',
-                bgcolor: 'background.paper',
-                boxShadow: '0 4px 24px rgba(0,0,0,0.03)',
-              }}
-            >
+        <div className="flex-1 p-4 sm:p-8">
+          <div className="max-w-3xl mx-auto">
+            <div className="rounded-2xl border border-gray-200 overflow-hidden bg-white shadow-sm">
               <DndContext
                 sensors={sensors}
                 collisionDetection={closestCenter}
                 onDragEnd={handleDragEnd}
               >
                 <SortableContext items={pageOrder} strategy={verticalListSortingStrategy}>
-                  <Box sx={{ display: 'flex', flexDirection: 'column' }}>
+                  <div className="flex flex-col">
                     {pageOrder.map((key, index, array) => {
                       const isChecked = visiblePages.includes(key);
                       const isDisabled = isChecked && visiblePages.length === 1;
@@ -488,15 +377,15 @@ export default function App() {
                         />
                       );
                     })}
-                  </Box>
+                  </div>
                 </SortableContext>
               </DndContext>
-            </Paper>
-          </Box>
-        </Box>
+            </div>
+          </div>
+        </div>
       </PageErrorBoundary>
 
       <GlobalSnackbar {...snackbarProps} />
-    </Box>
+    </div>
   );
 }
diff --git a/package-lock.json b/package-lock.json
index 0a4ef24..29f0ae4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,8 +15,9 @@
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-        "@mui/material": "^7.3.8",
+        "@mui/icons-material": "^9.0.1",
+        "@mui/material": "^9.0.1",
+        "@radix-ui/react-dialog": "^1.1.15",
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+      "resolved": "https://registry.npmjs.org/@mui/icons-material/-/icons-material-9.0.1.tgz",
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-        "@babel/runtime": "^7.28.6"
+        "@babel/runtime": "^7.29.2"
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+      "resolved": "https://registry.npmjs.org/@mui/material/-/material-9.0.1.tgz",
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-        "@mui/system": "^7.3.11",
-        "@mui/types": "^7.4.12",
-        "@mui/utils": "^7.3.11",
+        "@babel/runtime": "^7.29.2",
+        "@mui/core-downloads-tracker": "^9.0.1",
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+        "@mui/types": "^9.0.0",
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-        "react-is": "^19.2.3",
+        "react-is": "^19.2.4",
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@@ -1826,7 +1827,7 @@
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+      "resolved": "https://registry.npmjs.org/@mui/private-theming/-/private-theming-9.0.1.tgz",
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-        "@mui/utils": "^7.3.11",
+        "@babel/runtime": "^7.29.2",
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@@ -1874,12 +1875,12 @@
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+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/@mui/styled-engine/-/styled-engine-9.0.0.tgz",
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-        "@babel/runtime": "^7.28.6",
+        "@babel/runtime": "^7.29.2",
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@@ -1908,16 +1909,16 @@
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+      "resolved": "https://registry.npmjs.org/@mui/system/-/system-9.0.1.tgz",
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-        "@mui/styled-engine": "^7.3.10",
-        "@mui/types": "^7.4.12",
-        "@mui/utils": "^7.3.11",
+        "@babel/runtime": "^7.29.2",
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+        "@babel/runtime": "^7.29.2"
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-        "@mui/types": "^7.4.12",
+        "@babel/runtime": "^7.29.2",
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-        "react-is": "^19.2.3"
+        "react-is": "^19.2.4"
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@@ -2114,6 +2115,12 @@
         "url": "https://opencollective.com/popperjs"
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+    "node_modules/@radix-ui/primitive": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/@radix-ui/primitive/-/primitive-1.1.3.tgz",
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@@ -2129,6 +2136,249 @@
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+      "dependencies": {
+        "@radix-ui/react-slot": "1.2.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-primitive/node_modules/@radix-ui/react-slot": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-slot/-/react-slot-1.2.3.tgz",
+      "integrity": "sha512-aeNmHnBxbi2St0au6VBVC7JXFlhLlOnvIIlePNniyUNAClzmtAUEY8/pBiK3iHjufOlwA+c20/8jngo7xcrg8A==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-compose-refs": "1.1.2"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@radix-ui/react-slot": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-slot/-/react-slot-1.2.4.tgz",
@@ -2147,6 +2397,91 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-use-callback-ref": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-use-callback-ref/-/react-use-callback-ref-1.1.1.tgz",
+      "integrity": "sha512-FkBMwD+qbGQeMu1cOHnuGB6x4yzPjho8ap5WtbEJ26umhgqVXbhekKUQO+hZEL1vU92a3wHwdp0HAcqAUF5iDg==",
+      "license": "MIT",
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-use-controllable-state": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-use-controllable-state/-/react-use-controllable-state-1.2.2.tgz",
+      "integrity": "sha512-BjasUjixPFdS+NKkypcyyN5Pmg83Olst0+c6vGov0diwTEo6mgdqVR6hxcEgFuh4QrAs7Rc+9KuGJ9TVCj0Zzg==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-use-effect-event": "0.0.2",
+        "@radix-ui/react-use-layout-effect": "1.1.1"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-use-effect-event": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-use-effect-event/-/react-use-effect-event-0.0.2.tgz",
+      "integrity": "sha512-Qp8WbZOBe+blgpuUT+lw2xheLP8q0oatc9UpmiemEICxGvFLYmHm9QowVZGHtJlGbS6A6yJ3iViad/2cVjnOiA==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-use-layout-effect": "1.1.1"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-use-escape-keydown": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-use-escape-keydown/-/react-use-escape-keydown-1.1.1.tgz",
+      "integrity": "sha512-Il0+boE7w/XebUHyBjroE+DbByORGR9KKmITzbR7MyQ4akpORYP/ZmbhAr0DG7RmmBqoOnZdy2QlvajJ2QA59g==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-use-callback-ref": "1.1.1"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-use-layout-effect": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-use-layout-effect/-/react-use-layout-effect-1.1.1.tgz",
+      "integrity": "sha512-RbJRS4UWQFkzHTTwVymMTUv8EqYhOp8dOOviLj2ugtTiXRaRQS7GLGxZTLL1jWhMeoSCf5zmcZkqTl9IiYfXcQ==",
+      "license": "MIT",
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@rolldown/binding-android-arm64": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/@rolldown/binding-android-arm64/-/binding-android-arm64-1.0.2.tgz",
@@ -2635,7 +2970,7 @@
       "version": "19.2.3",
       "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-19.2.3.tgz",
       "integrity": "sha512-jp2L/eY6fn+KgVVQAOqYItbF0VY/YApe5Mz2F0aykSO8gx31bYCZyvSeYxCHKvzHG5eZjc+zyaS5BrBWya2+kQ==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "peerDependencies": {
         "@types/react": "^19.2.0"
@@ -3333,6 +3668,18 @@
       "dev": true,
       "license": "Python-2.0"
     },
+    "node_modules/aria-hidden": {
+      "version": "1.2.6",
+      "resolved": "https://registry.npmjs.org/aria-hidden/-/aria-hidden-1.2.6.tgz",
+      "integrity": "sha512-ik3ZgC9dY/lYVVM++OISsaYDeg1tb0VtP5uL3ouh1koGOaUMDPpbFIei4JkFimWUFPn90sbMNMXQAIVOlnYKJA==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/aria-query": {
       "version": "5.3.0",
       "resolved": "https://registry.npmjs.org/aria-query/-/aria-query-5.3.0.tgz",
@@ -4750,6 +5097,12 @@
         "node": ">=8"
       }
     },
+    "node_modules/detect-node-es": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/detect-node-es/-/detect-node-es-1.1.0.tgz",
+      "integrity": "sha512-ypdmJU/TbBby2Dxibuv7ZLW3Bs1QEmM7nHjEANfohJLvE0XVujisn1qPJcZxg+qDucsr+bP6fLD1rPS3AhJ7EQ==",
+      "license": "MIT"
+    },
     "node_modules/didyoumean": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/didyoumean/-/didyoumean-1.2.2.tgz",
@@ -6061,6 +6414,15 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/get-nonce": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/get-nonce/-/get-nonce-1.0.1.tgz",
+      "integrity": "sha512-FJhYRoDaiatfEkUK8HKlicmu/3SGFD51q3itKDGoSTysQJBnfOcxU5GxnhE1E6soB76MbT0MBtnKJuXyAx+96Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/get-port-please": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/get-port-please/-/get-port-please-3.2.0.tgz",
@@ -9600,6 +9962,75 @@
       "integrity": "sha512-XjBR15BhXuylgWGuslhDKqlSayuqvqBX91BP8pauG8kd1zY8kotkNWbXksTCNRarse4kuGbe2kIY05ARtwNIvw==",
       "license": "MIT"
     },
+    "node_modules/react-remove-scroll": {
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/react-remove-scroll/-/react-remove-scroll-2.7.2.tgz",
+      "integrity": "sha512-Iqb9NjCCTt6Hf+vOdNIZGdTiH1QSqr27H/Ek9sv/a97gfueI/5h1s3yRi1nngzMUaOOToin5dI1dXKdXiF+u0Q==",
+      "license": "MIT",
+      "dependencies": {
+        "react-remove-scroll-bar": "^2.3.7",
+        "react-style-singleton": "^2.2.3",
+        "tslib": "^2.1.0",
+        "use-callback-ref": "^1.3.3",
+        "use-sidecar": "^1.1.3"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-remove-scroll-bar": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/react-remove-scroll-bar/-/react-remove-scroll-bar-2.3.8.tgz",
+      "integrity": "sha512-9r+yi9+mgU33AKcj6IbT9oRCO78WriSj6t/cF8DWBZJ9aOGPOTEDvdUDz1FwKim7QXWwmHqtdHnRJfhAxEG46Q==",
+      "license": "MIT",
+      "dependencies": {
+        "react-style-singleton": "^2.2.2",
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-style-singleton": {
+      "version": "2.2.3",
+      "resolved": "https://registry.npmjs.org/react-style-singleton/-/react-style-singleton-2.2.3.tgz",
+      "integrity": "sha512-b6jSvxvVnyptAiLjbkWLE/lOnR4lfTtDAl+eUC7RZy+QQWc6wRzIV2CE6xBuMmDxc2qIihtDCZD5NPOFl7fRBQ==",
+      "license": "MIT",
+      "dependencies": {
+        "get-nonce": "^1.0.0",
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/react-transition-group": {
       "version": "4.4.5",
       "resolved": "https://registry.npmjs.org/react-transition-group/-/react-transition-group-4.4.5.tgz",
@@ -11414,6 +11845,49 @@
         "punycode": "^2.1.0"
       }
     },
+    "node_modules/use-callback-ref": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/use-callback-ref/-/use-callback-ref-1.3.3.tgz",
+      "integrity": "sha512-jQL3lRnocaFtu3V00JToYz/4QkNWswxijDaCVNZRiRTO3HQDLsdu1ZtmIUvV4yPp+rvWm5j0y0TG/S61cuijTg==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/use-sidecar": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/use-sidecar/-/use-sidecar-1.1.3.tgz",
+      "integrity": "sha512-Fedw0aZvkhynoPYlA5WXrMCAMm+nSWdZt6lzJQ7Ok8S6Q+VsHmHpRWndVRJ8Be0ZbkfPc5LRYH+5XrzXcEeLRQ==",
+      "license": "MIT",
+      "dependencies": {
+        "detect-node-es": "^1.1.0",
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/use-sync-external-store": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.6.0.tgz",
diff --git a/package.json b/package.json
index 8fcc43c..b431b5f 100644
--- a/package.json
+++ b/package.json
@@ -26,8 +26,9 @@
     "@dnd-kit/utilities": "^3.2.2",
     "@emotion/react": "^11.14.0",
     "@emotion/styled": "^11.14.1",
-    "@mui/icons-material": "^7.3.8",
-    "@mui/material": "^7.3.8",
+    "@mui/icons-material": "^9.0.1",
+    "@mui/material": "^9.0.1",
+    "@radix-ui/react-dialog": "^1.1.15",
     "@radix-ui/react-slot": "^1.2.4",
     "@testing-library/dom": "^10.4.1",
     "@vitest/coverage-v8": "^4.1.7",
diff --git a/pages/Dashboard/ToolCard.tsx b/pages/Dashboard/ToolCard.tsx
index e8c37f2..a8e0329 100644
--- a/pages/Dashboard/ToolCard.tsx
+++ b/pages/Dashboard/ToolCard.tsx
@@ -1,12 +1,6 @@
-/**
- * ToolCard 组件 - 工具卡片
- *
- * 用于在仪表盘中展示各个工具功能的卡片组件，支持图标、标题、描述、
- * 快照内容展示，具备悬停动画效果。
- */
 import { ChevronRight } from 'lucide-react';
 import type { ComponentType } from 'react';
-import type { SvgIconProps } from '@mui/material/SvgIcon';
+import type { LucideProps } from 'lucide-react';
 import type { PaletteColorKey } from '@/config/features';
 
 const PALETTE_COLORS: Record<PaletteColorKey, string> = {
@@ -23,7 +17,7 @@ interface ToolCardProps {
   description?: string;
   snapshot?: React.ReactNode;
   colorKey: PaletteColorKey;
-  icon: ComponentType<SvgIconProps>;
+  icon: ComponentType<LucideProps>;
   onClick: () => void;
 }
 
@@ -68,7 +62,7 @@ export default function ToolCard({
                 color: colorCode,
               }}
             >
-              <IconComponent sx={{ fontSize: 20 }} />
+              <IconComponent size={20} />
             </div>
             <div>
               <span className="font-bold text-sm leading-tight text-gray-900 flex items-center gap-1">
diff --git a/pages/HtmlToMarkdown/index.tsx b/pages/HtmlToMarkdown/index.tsx
index 5ca614d..5656818 100644
--- a/pages/HtmlToMarkdown/index.tsx
+++ b/pages/HtmlToMarkdown/index.tsx
@@ -1,18 +1,5 @@
 import { useCallback, useMemo, useState } from 'react';
-import {
-  Alert,
-  alpha,
-  Box,
-  Button,
-  Container,
-  Stack,
-  TextField,
-  Typography,
-  Paper,
-} from '@mui/material';
-import DeleteOutlineIcon from '@mui/icons-material/DeleteOutline';
-import DownloadIcon from '@mui/icons-material/Download';
-import CodeIcon from '@mui/icons-material/Code';
+import { Code, Download, Trash2 } from 'lucide-react';
 import { useLazyTranslation } from '@/utils/useLazyTranslation';
 import PageHeader from '@/components/PageHeader';
 import CopyButton from '@/components/CopyButton';
@@ -57,18 +44,12 @@ export default function HtmlToMarkdownPage() {
   const showOutput = previewMode !== 'markdown';
 
   return (
-    <Container maxWidth="xl" sx={{ py: 3 }}>
-      <PageHeader title={t('pageTitle')} subtitle={t('pageSubtitle')} icon={<CodeIcon />} />
+    <div className="container mx-auto px-4 py-6 max-w-7xl">
+      <PageHeader title={t('pageTitle')} subtitle={t('pageSubtitle')} icon={<Code size={20} />} />
 
-      <Stack spacing={2}>
+      <div className="flex flex-col gap-4">
         {/* 工具栏 */}
-        <Stack
-          direction="row"
-          justifyContent="space-between"
-          alignItems="center"
-          flexWrap="wrap"
-          gap={1.5}
-        >
+        <div className="flex flex-wrap items-center justify-between gap-3">
           <SwitchButtonGroup
             value={previewMode}
             options={[
@@ -80,193 +61,88 @@ export default function HtmlToMarkdownPage() {
             size="small"
           />
 
-          <Stack direction="row" spacing={1}>
-            <Button
-              variant="outlined"
-              size="small"
-              startIcon={<DownloadIcon />}
+          <div className="flex gap-2">
+            <button
               onClick={handleDownload}
               disabled={!result.markdown}
-              sx={{ borderRadius: 2 }}
+              className="inline-flex items-center gap-1.5 px-3 py-1.5 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
             >
+              <Download size={14} />
               {t('download')}
-            </Button>
-            <Button
-              variant="outlined"
-              size="small"
-              startIcon={<DeleteOutlineIcon />}
+            </button>
+            <button
               onClick={handleClear}
-              sx={{ borderRadius: 2 }}
+              className="inline-flex items-center gap-1.5 px-3 py-1.5 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 transition-colors"
             >
+              <Trash2 size={14} />
               {t('clear')}
-            </Button>
-          </Stack>
-        </Stack>
+            </button>
+          </div>
+        </div>
 
         {/* 错误提示 */}
         {error && (
-          <Alert severity="error" sx={{ borderRadius: 2 }}>
+          <div className="p-3 bg-red-50 border border-red-200 rounded-lg text-red-700 text-sm">
             {error}
-          </Alert>
+          </div>
         )}
 
         {/* 主内容区 */}
-        <Box
-          sx={{
-            display: 'grid',
-            gridTemplateColumns: {
-              xs: '1fr',
-              md: showInput && showOutput ? '1fr 1fr' : '1fr',
-            },
-            gap: 2,
-            minHeight: 500,
-          }}
+        <div
+          className={`grid gap-4 min-h-[500px] ${
+            showInput && showOutput ? 'md:grid-cols-2' : 'grid-cols-1'
+          }`}
         >
           {/* HTML 输入区 */}
           {showInput && (
-            <Paper
-              elevation={0}
-              sx={{
-                border: '1px solid',
-                borderColor: 'divider',
-                borderRadius: 3,
-                overflow: 'hidden',
-                display: 'flex',
-                flexDirection: 'column',
-              }}
-            >
-              <Box
-                sx={{
-                  px: 2,
-                  py: 1,
-                  bgcolor: (theme) => alpha(theme.palette.primary.main, 0.04),
-                  borderBottom: '1px solid',
-                  borderColor: 'divider',
-                  display: 'flex',
-                  justifyContent: 'space-between',
-                  alignItems: 'center',
-                }}
-              >
-                <Typography variant="caption" sx={{ fontWeight: 700, color: 'text.secondary' }}>
-                  {t('inputLabel')}
-                </Typography>
-                <Typography variant="caption" sx={{ color: 'text.disabled' }}>
+            <div className="border border-gray-200 rounded-xl overflow-hidden flex flex-col">
+              <div className="flex items-center justify-between px-4 py-2 bg-blue-50/50 border-b border-gray-200">
+                <span className="text-xs font-bold text-gray-500">{t('inputLabel')}</span>
+                <span className="text-xs text-gray-400">
                   {t('charCount', { count: html.length })}
-                </Typography>
-              </Box>
-              <TextField
-                multiline
-                fullWidth
+                </span>
+              </div>
+              <textarea
                 value={html}
                 onChange={(e) => setHtml(e.target.value)}
                 placeholder={t('inputPlaceholder')}
-                sx={{
-                  flex: 1,
-                  '& .MuiOutlinedInput-root': {
-                    borderRadius: 0,
-                    fontFamily: 'monospace',
-                    fontSize: '0.85rem',
-                    lineHeight: 1.6,
-                    alignItems: 'flex-start',
-                    '& fieldset': { border: 'none' },
-                  },
-                  '& .MuiInputBase-input': {
-                    py: 2,
-                    px: 2,
-                    minHeight: 400,
-                  },
-                }}
+                className="flex-1 min-h-[400px] p-4 font-mono text-[0.85rem] leading-relaxed resize-none focus:outline-none"
               />
-            </Paper>
+            </div>
           )}
 
           {/* Markdown 输出区 */}
           {showOutput && (
-            <Paper
-              elevation={0}
-              sx={{
-                border: '1px solid',
-                borderColor: 'divider',
-                borderRadius: 3,
-                overflow: 'hidden',
-                display: 'flex',
-                flexDirection: 'column',
-              }}
-            >
-              <Box
-                sx={{
-                  px: 2,
-                  py: 1,
-                  bgcolor: (theme) => alpha(theme.palette.primary.main, 0.04),
-                  borderBottom: '1px solid',
-                  borderColor: 'divider',
-                  display: 'flex',
-                  justifyContent: 'space-between',
-                  alignItems: 'center',
-                }}
-              >
-                <Typography variant="caption" sx={{ fontWeight: 700, color: 'text.secondary' }}>
+            <div className="border border-gray-200 rounded-xl overflow-hidden flex flex-col">
+              <div className="flex items-center justify-between px-4 py-2 bg-blue-50/50 border-b border-gray-200">
+                <span className="text-xs font-bold text-gray-500">
                   {(previewMode as string) === 'markdown'
                     ? t('markdownOutputLabel')
                     : t('previewLabel')}
-                </Typography>
-                <Stack direction="row" spacing={0.5} alignItems="center">
-                  <Typography variant="caption" sx={{ color: 'text.disabled' }}>
+                </span>
+                <div className="flex items-center gap-1">
+                  <span className="text-xs text-gray-400">
                     {t('charCount', { count: result.markdownLength })}
-                  </Typography>
+                  </span>
                   <CopyButton text={result.markdown} size="small" />
-                </Stack>
-              </Box>
+                </div>
+              </div>
 
               {(previewMode as string) === 'markdown' ? (
-                <TextField
-                  multiline
-                  fullWidth
+                <textarea
                   value={result.markdown}
-                  slotProps={{ input: { readOnly: true } }}
-                  sx={{
-                    flex: 1,
-                    '& .MuiOutlinedInput-root': {
-                      borderRadius: 0,
-                      fontFamily: 'monospace',
-                      fontSize: '0.85rem',
-                      lineHeight: 1.6,
-                      alignItems: 'flex-start',
-                      '& fieldset': { border: 'none' },
-                    },
-                    '& .MuiInputBase-input': {
-                      py: 2,
-                      px: 2,
-                      minHeight: 400,
-                    },
-                  }}
+                  readOnly
+                  className="flex-1 min-h-[400px] p-4 font-mono text-[0.85rem] leading-relaxed resize-none focus:outline-none bg-gray-50"
                 />
               ) : (
-                <Box
-                  sx={{
-                    flex: 1,
-                    p: 2,
-                    minHeight: 400,
-                    overflow: 'auto',
-                    bgcolor: 'background.paper',
-                    fontFamily: 'monospace',
-                    fontSize: '0.85rem',
-                    lineHeight: 1.6,
-                    whiteSpace: 'pre-wrap',
-                    wordBreak: 'break-word',
-                  }}
-                >
-                  {result.markdown || (
-                    <Typography variant="body2" color="text.disabled">
-                      {t('emptyHint')}
-                    </Typography>
-                  )}
-                </Box>
+                <div className="flex-1 p-4 min-h-[400px] overflow-auto bg-white font-mono text-[0.85rem] leading-relaxed whitespace-pre-wrap break-words">
+                  {result.markdown || <span className="text-gray-400">{t('emptyHint')}</span>}
+                </div>
               )}
-            </Paper>
+            </div>
           )}
-        </Box>
-      </Stack>
-    </Container>
+        </div>
+      </div>
+    </div>
   );
 }
diff --git a/pages/MarkdownToHtml/index.tsx b/pages/MarkdownToHtml/index.tsx
index 6a744ab..396ce90 100644
--- a/pages/MarkdownToHtml/index.tsx
+++ b/pages/MarkdownToHtml/index.tsx
@@ -1,19 +1,5 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
-import {
-  Alert,
-  alpha,
-  Box,
-  Button,
-  Container,
-  Stack,
-  TextField,
-  Typography,
-  Paper,
-} from '@mui/material';
-import CodeIcon from '@mui/icons-material/Code';
-import DeleteOutlineIcon from '@mui/icons-material/DeleteOutline';
-import PrintIcon from '@mui/icons-material/Print';
-import DownloadIcon from '@mui/icons-material/Download';
+import { Code, Trash2, Printer, Download } from 'lucide-react';
 import { useLazyTranslation } from '@/utils/useLazyTranslation';
 import PageHeader from '@/components/PageHeader';
 import CopyButton from '@/components/CopyButton';
@@ -121,7 +107,6 @@ export default function MarkdownToHtmlPage() {
   const result = useMemo(() => markdownToHtml(markdown), [markdown]);
   const error = result.hasError ? (result.error ?? null) : null;
 
-  // 更新 iframe 预览内容
   useEffect(() => {
     const iframe = iframeRef.current;
     if (!iframe || !iframe.contentDocument) return;
@@ -163,18 +148,12 @@ export default function MarkdownToHtmlPage() {
   const showPreview = previewMode !== 'html';
 
   return (
-    <Container maxWidth="xl" sx={{ py: 3 }}>
-      <PageHeader title={t('pageTitle')} subtitle={t('pageSubtitle')} icon={<CodeIcon />} />
+    <div className="container mx-auto px-4 py-6 max-w-7xl">
+      <PageHeader title={t('pageTitle')} subtitle={t('pageSubtitle')} icon={<Code size={20} />} />
 
-      <Stack spacing={2}>
+      <div className="flex flex-col gap-4">
         {/* 工具栏 */}
-        <Stack
-          direction="row"
-          justifyContent="space-between"
-          alignItems="center"
-          flexWrap="wrap"
-          gap={1.5}
-        >
+        <div className="flex flex-wrap items-center justify-between gap-3">
           <SwitchButtonGroup
             value={previewMode}
             options={[
@@ -186,200 +165,96 @@ export default function MarkdownToHtmlPage() {
             size="small"
           />
 
-          <Stack direction="row" spacing={1}>
-            <Button
-              variant="outlined"
-              size="small"
-              startIcon={<DeleteOutlineIcon />}
+          <div className="flex gap-2">
+            <button
               onClick={handleClear}
-              sx={{ borderRadius: 2 }}
+              className="inline-flex items-center gap-1.5 px-3 py-1.5 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 transition-colors"
             >
+              <Trash2 size={14} />
               {t('clear')}
-            </Button>
-            <Button
-              variant="outlined"
-              size="small"
-              startIcon={<PrintIcon />}
+            </button>
+            <button
               onClick={handlePrint}
-              sx={{ borderRadius: 2 }}
+              className="inline-flex items-center gap-1.5 px-3 py-1.5 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 transition-colors"
             >
+              <Printer size={14} />
               {t('print')}
-            </Button>
-            <Button
-              variant="outlined"
-              size="small"
-              startIcon={<DownloadIcon />}
+            </button>
+            <button
               onClick={handleDownload}
-              sx={{ borderRadius: 2 }}
+              className="inline-flex items-center gap-1.5 px-3 py-1.5 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 transition-colors"
             >
+              <Download size={14} />
               {t('download')}
-            </Button>
-          </Stack>
-        </Stack>
+            </button>
+          </div>
+        </div>
 
         {/* 错误提示 */}
         {error && (
-          <Alert severity="error" sx={{ borderRadius: 2 }}>
+          <div className="p-3 bg-red-50 border border-red-200 rounded-lg text-red-700 text-sm">
             {error}
-          </Alert>
+          </div>
         )}
 
         {/* 主内容区 */}
-        <Box
-          sx={{
-            display: 'grid',
-            gridTemplateColumns: {
-              xs: '1fr',
-              md: showInput && showPreview ? '1fr 1fr' : '1fr',
-            },
-            gap: 2,
-            minHeight: 500,
-          }}
+        <div
+          className={`grid gap-4 min-h-[500px] ${
+            showInput && showPreview ? 'md:grid-cols-2' : 'grid-cols-1'
+          }`}
         >
           {/* Markdown 输入区 */}
           {showInput && (
-            <Paper
-              elevation={0}
-              sx={{
-                border: '1px solid',
-                borderColor: 'divider',
-                borderRadius: 3,
-                overflow: 'hidden',
-                display: 'flex',
-                flexDirection: 'column',
-              }}
-            >
-              <Box
-                sx={{
-                  px: 2,
-                  py: 1,
-                  bgcolor: (theme) => alpha(theme.palette.primary.main, 0.04),
-                  borderBottom: '1px solid',
-                  borderColor: 'divider',
-                  display: 'flex',
-                  justifyContent: 'space-between',
-                  alignItems: 'center',
-                }}
-              >
-                <Typography variant="caption" sx={{ fontWeight: 700, color: 'text.secondary' }}>
-                  {t('inputLabel')}
-                </Typography>
-                <Typography variant="caption" sx={{ color: 'text.disabled' }}>
+            <div className="border border-gray-200 rounded-xl overflow-hidden flex flex-col">
+              <div className="flex items-center justify-between px-4 py-2 bg-blue-50/50 border-b border-gray-200">
+                <span className="text-xs font-bold text-gray-500">{t('inputLabel')}</span>
+                <span className="text-xs text-gray-400">
                   {t('charCount', { count: markdown.length })}
-                </Typography>
-              </Box>
-              <TextField
-                multiline
-                fullWidth
+                </span>
+              </div>
+              <textarea
                 value={markdown}
                 onChange={(e) => setMarkdown(e.target.value)}
                 placeholder={t('inputPlaceholder')}
-                sx={{
-                  flex: 1,
-                  '& .MuiOutlinedInput-root': {
-                    borderRadius: 0,
-                    fontFamily: 'monospace',
-                    fontSize: '0.85rem',
-                    lineHeight: 1.6,
-                    alignItems: 'flex-start',
-                    '& fieldset': { border: 'none' },
-                  },
-                  '& .MuiInputBase-input': {
-                    py: 2,
-                    px: 2,
-                    minHeight: 400,
-                  },
-                }}
+                className="flex-1 min-h-[400px] p-4 font-mono text-[0.85rem] leading-relaxed resize-none focus:outline-none"
               />
-            </Paper>
+            </div>
           )}
 
           {/* 预览/输出区 */}
           {showPreview && (
-            <Paper
-              elevation={0}
-              sx={{
-                border: '1px solid',
-                borderColor: 'divider',
-                borderRadius: 3,
-                overflow: 'hidden',
-                display: 'flex',
-                flexDirection: 'column',
-              }}
-            >
-              <Box
-                sx={{
-                  px: 2,
-                  py: 1,
-                  bgcolor: (theme) => alpha(theme.palette.primary.main, 0.04),
-                  borderBottom: '1px solid',
-                  borderColor: 'divider',
-                  display: 'flex',
-                  justifyContent: 'space-between',
-                  alignItems: 'center',
-                }}
-              >
-                <Typography variant="caption" sx={{ fontWeight: 700, color: 'text.secondary' }}>
+            <div className="border border-gray-200 rounded-xl overflow-hidden flex flex-col">
+              <div className="flex items-center justify-between px-4 py-2 bg-blue-50/50 border-b border-gray-200">
+                <span className="text-xs font-bold text-gray-500">
                   {(previewMode as string) === 'html' ? t('htmlOutputLabel') : t('previewLabel')}
-                </Typography>
-                <Stack direction="row" spacing={0.5} alignItems="center">
-                  <Typography variant="caption" sx={{ color: 'text.disabled' }}>
+                </span>
+                <div className="flex items-center gap-1">
+                  <span className="text-xs text-gray-400">
                     {t('charCount', { count: result.htmlLength })}
-                  </Typography>
+                  </span>
                   <CopyButton text={result.html} size="small" />
-                </Stack>
-              </Box>
+                </div>
+              </div>
 
               {(previewMode as string) === 'html' ? (
-                <TextField
-                  multiline
-                  fullWidth
+                <textarea
                   value={result.html}
-                  InputProps={{ readOnly: true }}
-                  sx={{
-                    flex: 1,
-                    '& .MuiOutlinedInput-root': {
-                      borderRadius: 0,
-                      fontFamily: 'monospace',
-                      fontSize: '0.8rem',
-                      lineHeight: 1.5,
-                      alignItems: 'flex-start',
-                      '& fieldset': { border: 'none' },
-                    },
-                    '& .MuiInputBase-input': {
-                      py: 2,
-                      px: 2,
-                      minHeight: 400,
-                    },
-                  }}
+                  readOnly
+                  className="flex-1 min-h-[400px] p-4 font-mono text-[0.8rem] leading-relaxed resize-none focus:outline-none bg-gray-50"
                 />
               ) : (
-                <Box
-                  sx={{
-                    flex: 1,
-                    p: 2,
-                    minHeight: 400,
-                    overflow: 'auto',
-                    bgcolor: 'background.paper',
-                  }}
-                >
+                <div className="flex-1 p-4 min-h-[400px] overflow-auto bg-white">
                   <iframe
                     ref={iframeRef}
                     title="markdown-preview"
-                    style={{
-                      width: '100%',
-                      height: '100%',
-                      minHeight: 380,
-                      border: 'none',
-                      background: 'transparent',
-                    }}
+                    className="w-full h-full min-h-[380px] border-none bg-transparent"
                   />
-                </Box>
+                </div>
               )}
-            </Paper>
+            </div>
           )}
-        </Box>
-      </Stack>
-    </Container>
+        </div>
+      </div>
+    </div>
   );
 }