refactor: 重新设计Popup页面，简洁现代美观

- 采用Clean Modernity设计哲学
- 优化视觉层次和间距
- 使用indigo/violet渐变主题色
- 简化模式切换按钮
- 美化复选框和下拉选择框
- 添加平滑动画效果
- 自定义滚动条样式
- 更新docs/popup-design-philosophy.md

Co-Authored-By: Claude <noreply@anthropic.com>

docs/popup-design-philosophy.md

@@ -0,0 +1,15 @@
+# Design Philosophy: Clean Modernity
+
+## 视觉哲学宣言
+
+**简约而不简单**。现代设计的本质不是添加，而是减法。每一个元素的存在都应有其意义，每一处空白都是设计的呼吸。去除一切不必要的装饰，让功能本身成为美学。
+
+**清晰的视觉层次**。用户视线应自然流动，从最重要的元素流向次要元素。通过尺寸、颜色、间距和对比度建立层次，无需多余标注。信息自明，用户无需思考。
+
+**克制的色彩运用**。以单色或双色调为主，点缀恰到好处的强调色。色彩用于引导注意力和表达状态，而非装饰。柔和的灰度背景承载内容，明亮的强调色突出行动。
+
+**微妙的圆角与阴影**。圆润的边角传递友好与亲和，恰到好处的阴影创造深度与层次。避免生硬的直角和夸张的投影，追求自然的光影效果。
+
+**精致的细节把控**。即使在16像素的图标中，每一个像素都经过考量。按钮的点击区域、字体的行高、元素的对齐——这些看不见的细节决定了整体的品质感。博物馆级的工艺标准意味着卓越。
+
+**留白的艺术**。空间本身就是一种元素。足够的留白让内容得以呼吸，让界面看起来从容不迫。拥挤的界面传达焦虑，宽敞的界面传递自信。

src/index.css

@@ -11,3 +11,55 @@ body {
   padding: 0;
   width: 320px;
 }
+
+/* 动画 */
+@keyframes fadeIn {
+  from { opacity: 0; }
+  to { opacity: 1; }
+}
+
+@keyframes scaleIn {
+  from {
+    opacity: 0;
+    transform: scale(0.95);
+  }
+  to {
+    opacity: 1;
+    transform: scale(1);
+  }
+}
+
+.animate-fade-in {
+  animation: fadeIn 0.2s ease-out;
+}
+
+.animate-scale-in {
+  animation: scaleIn 0.2s ease-out;
+}
+
+/* 自定义滚动条 */
+::-webkit-scrollbar {
+  width: 6px;
+  height: 6px;
+}
+
+::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+::-webkit-scrollbar-thumb {
+  background: #d1d5db;
+  border-radius: 3px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background: #9ca3af;
+}
+
+.dark ::-webkit-scrollbar-thumb {
+  background: #4b5563;
+}
+
+.dark ::-webkit-scrollbar-thumb:hover {
+  background: #6b7280;
+}

src/popup/Popup.tsx

@@ -68,7 +68,6 @@ export function Popup() {
       });
       await copyToClipboard(markdown);
       showStatus('success', '已复制到剪贴板！');
-      // 1秒后关闭弹窗
       setTimeout(() => {
         window.close();
       }, 1000);
@@ -89,8 +88,6 @@ export function Popup() {
 
       const blob = new Blob([markdown], { type: 'text/markdown;charset=utf-8' });
       const url = URL.createObjectURL(blob);
-
-      // 使用chrome.downloads API
       const filename = `${extractedContent.title.replace(/[<>:"/\\|?*]/g, '_').substring(0, 100)}.md`;
       await chrome.downloads.download({
         url: url,
@@ -100,7 +97,6 @@ export function Popup() {
 
       URL.revokeObjectURL(url);
       showStatus('success', '开始下载...');
-      // 1秒后关闭弹窗
       setTimeout(() => {
         window.close();
       }, 1000);
@@ -141,51 +137,74 @@ export function Popup() {
 
   if (settingsLoading) {
     return (
-      <div className="w-80 p-4 flex items-center justify-center">
-        <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-500"></div>
+      <div className="w-80 h-64 flex items-center justify-center">
+        <div className="animate-spin rounded-full h-8 w-8 border-2 border-indigo-500 border-t-transparent"></div>
       </div>
     );
   }
 
   return (
-    <div className="w-80 p-4 bg-white dark:bg-gray-900">
-      {/* 标题 */}
-      <div className="flex items-center gap-2 mb-4">
-        <svg className="w-8 h-8 text-green-500" viewBox="0 0 24 24" fill="currentColor">
-          <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8l-6-6zm-1 2l5 5h-5V4zM6 20V4h6v6h6v10H6z"/>
-          <path d="M8 12h8v2H8zm0 4h8v2H8z"/>
-        </svg>
-        <h1 className="text-xl font-bold text-gray-900 dark:text-white">ReadMD</h1>
+    <div className="w-80 bg-gray-50 dark:bg-gray-900">
+      {/* 头部 */}
+      <div className="px-5 py-5 bg-white dark:bg-gray-800 border-b border-gray-100 dark:border-gray-700">
+        <div className="flex items-center gap-3">
+          <div className="w-10 h-10 rounded-xl bg-gradient-to-br from-indigo-500 to-violet-600 flex items-center justify-center shadow-lg shadow-indigo-500/30">
+            <svg className="w-5 h-5 text-white" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+              <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8l-6-6z"/>
+              <path d="M14 2v6h6"/>
+              <path d="M8 13h8"/>
+              <path d="M8 17h8"/>
+            </svg>
+          </div>
+          <div>
+            <h1 className="text-lg font-semibold text-gray-900 dark:text-white">ReadMD</h1>
+            <p className="text-xs text-gray-500 dark:text-gray-400">网页转 Markdown</p>
+          </div>
+        </div>
       </div>
 
-      {/* 提取按钮 */}
-      <ExtractButton
-        loading={status.type === 'loading'}
-        onExtract={handleExtract}
-        mode={mode}
-        onModeChange={setMode}
-      />
+      {/* 主要内容区 */}
+      <div className="p-5 space-y-4">
+        {/* 状态消息 */}
+        {status.message && (
+          <div className={`p-3 rounded-lg text-sm font-medium transition-all duration-300 ${
+            status.type === 'success' ? 'bg-emerald-50 text-emerald-700 dark:bg-emerald-900/20 dark:text-emerald-400' :
+            status.type === 'error' ? 'bg-red-50 text-red-700 dark:bg-red-900/20 dark:text-red-400' :
+            status.type === 'loading' ? 'bg-indigo-50 text-indigo-700 dark:bg-indigo-900/20 dark:text-indigo-400' :
+            'bg-gray-100 text-gray-700 dark:bg-gray-800 dark:text-gray-300'
+          }`}>
+            {status.message}
+          </div>
+        )}
 
-      {/* 状态消息 */}
-      {status.message && (
-        <div className={`mt-3 p-2 rounded-lg text-sm ${
-          status.type === 'success' ? 'bg-green-100 text-green-800 dark:bg-green-900/30 dark:text-green-400' :
-          status.type === 'error' ? 'bg-red-100 text-red-800 dark:bg-red-900/30 dark:text-red-400' :
-          status.type === 'loading' ? 'bg-blue-100 text-blue-800 dark:bg-blue-900/30 dark:text-blue-400' :
-          'bg-gray-100 text-gray-800 dark:bg-gray-800 dark:text-gray-300'
-        }`}>
-          {status.message}
-        </div>
-      )}
+        {/* 提取按钮 */}
+        <ExtractButton
+          loading={status.type === 'loading'}
+          onExtract={handleExtract}
+          mode={mode}
+          onModeChange={setMode}
+        />
 
-      {/* 分隔线 */}
-      <hr className="my-4 border-gray-200 dark:border-gray-700" />
+        {/* 选项面板 */}
+        <OptionsPanel
+          settings={settings}
+          onSettingsChange={saveSettings}
+        />
+      </div>
 
-      {/* 选项面板 */}
-      <OptionsPanel
-        settings={settings}
-        onSettingsChange={saveSettings}
-      />
+      {/* 页脚 */}
+      <div className="px-5 py-4 bg-white dark:bg-gray-800 border-t border-gray-100 dark:border-gray-700">
+        <button
+          onClick={() => chrome.runtime.openOptionsPage()}
+          className="w-full py-2.5 text-sm text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-gray-200 transition-colors flex items-center justify-center gap-2"
+        >
+          <svg className="w-4 h-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+            <circle cx="12" cy="12" r="3"/>
+            <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 2.0 1 83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z"/>
+          </svg>
+          设置
+        </button>
+      </div>
 
       {/* 预览弹窗 */}
       {showPreview && extractedContent && (
@@ -196,20 +215,6 @@ export function Popup() {
           onDownload={handleDownload}
         />
       )}
-
-      {/* 页脚 */}
-      <div className="mt-4 text-center text-xs text-gray-500 dark:text-gray-400">
-        <a
-          href="#"
-          onClick={(e) => {
-            e.preventDefault();
-            chrome.runtime.openOptionsPage();
-          }}
-          className="hover:text-gray-700 dark:hover:text-gray-200"
-        >
-          打开设置页面
-        </a>
-      </div>
     </div>
   );
 }

src/popup/components/ExtractButton.tsx

@@ -9,23 +9,23 @@ export function ExtractButton({ loading, onExtract, mode, onModeChange }: Extrac
   return (
     <div className="space-y-3">
       {/* 提取模式切换 */}
-      <div className="flex gap-2 p-2 bg-gray-100 dark:bg-gray-800 rounded-lg">
+      <div className="flex gap-1 p-1 bg-gray-100 dark:bg-gray-800/50 rounded-lg">
         <button
           onClick={() => onModeChange('auto')}
-          className={`flex-1 py-2 px-3 text-sm rounded-md transition-colors ${
+          className={`flex-1 py-2 text-sm font-medium rounded-md transition-all duration-200 ${
             mode === 'auto'
-              ? 'bg-blue-500 text-white'
-              : 'bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600'
+              ? 'bg-white dark:bg-gray-700 text-gray-900 dark:text-white shadow-sm'
+              : 'text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-white'
           }`}
         >
           自动提取
         </button>
         <button
           onClick={() => onModeChange('selection')}
-          className={`flex-1 py-2 px-3 text-sm rounded-md transition-colors ${
+          className={`flex-1 py-2 text-sm font-medium rounded-md transition-all duration-200 ${
             mode === 'selection'
-              ? 'bg-blue-500 text-white'
-              : 'bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600'
+              ? 'bg-white dark:bg-gray-700 text-gray-900 dark:text-white shadow-sm'
+              : 'text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-white'
           }`}
         >
           选择区域
@@ -36,10 +36,10 @@ export function ExtractButton({ loading, onExtract, mode, onModeChange }: Extrac
       <button
         onClick={onExtract}
         disabled={loading}
-        className={`w-full py-3 px-4 rounded-lg font-medium text-white transition-all ${
+        className={`w-full py-3 px-4 rounded-xl font-medium text-white transition-all duration-200 ${
           loading
-            ? 'bg-gray-400 cursor-not-allowed'
-            : 'bg-green-500 hover:bg-green-600 active:scale-95'
+            ? 'bg-gray-300 dark:bg-gray-600 cursor-not-allowed'
+            : 'bg-gradient-to-r from-indigo-500 to-violet-600 hover:from-indigo-600 hover:to-violet-700 shadow-lg shadow-indigo-500/30 hover:shadow-indigo-500/40 active:scale-[0.98]'
         }`}
       >
         {loading ? (
@@ -51,7 +51,12 @@ export function ExtractButton({ loading, onExtract, mode, onModeChange }: Extrac
             提取中...
           </span>
         ) : (
-          '提取并导出Markdown'
+          <span className="flex items-center justify-center gap-2">
+            <svg className="w-5 h-5" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+              <path d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"/>
+            </svg>
+            提取并导出 Markdown
+          </span>
         )}
       </button>
     </div>

src/popup/components/OptionsPanel.tsx

@@ -7,52 +7,104 @@ interface OptionsPanelProps {
 
 export function OptionsPanel({ settings, onSettingsChange }: OptionsPanelProps) {
   return (
-    <div className="space-y-3">
-      <h4 className="text-sm font-medium text-gray-700 dark:text-gray-300">导出选项</h4>
+    <div className="space-y-4">
+      <h4 className="text-xs font-semibold text-gray-500 dark:text-gray-400 uppercase tracking-wider">导出选项</h4>
 
-      <label className="flex items-center gap-2 cursor-pointer">
-        <input
-          type="checkbox"
-          checked={settings.includeTitle}
-          onChange={(e) => onSettingsChange({ includeTitle: e.target.checked })}
-          className="w-4 h-4 text-blue-500 rounded focus:ring-blue-500"
-        />
-        <span className="text-sm text-gray-700 dark:text-gray-300">包含标题</span>
-      </label>
+      <div className="space-y-3">
+        {/* 包含标题 */}
+        <label className="flex items-center gap-3 cursor-pointer group">
+          <div className={`w-5 h-5 rounded-md border-2 flex items-center justify-center transition-all duration-200 ${
+            settings.includeTitle
+              ? 'border-indigo-500 bg-indigo-500'
+              : 'border-gray-300 dark:border-gray-600 group-hover:border-indigo-400'
+          }`}>
+            {settings.includeTitle && (
+              <svg className="w-3 h-3 text-white" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="3">
+                <path d="M5 13l4 4L19 7"/>
+              </svg>
+            )}
+          </div>
+          <input
+            type="checkbox"
+            checked={settings.includeTitle}
+            onChange={(e) => onSettingsChange({ includeTitle: e.target.checked })}
+            className="hidden"
+          />
+          <span className="text-sm text-gray-700 dark:text-gray-300 group-hover:text-gray-900 dark:group-hover:text-white transition-colors">
+            包含标题
+          </span>
+        </label>
 
-      <label className="flex items-center gap-2 cursor-pointer">
-        <input
-          type="checkbox"
-          checked={settings.includeUrl}
-          onChange={(e) => onSettingsChange({ includeUrl: e.target.checked })}
-          className="w-4 h-4 text-blue-500 rounded focus:ring-blue-500"
-        />
-        <span className="text-sm text-gray-700 dark:text-gray-300">包含原文链接</span>
-      </label>
+        {/* 包含原文链接 */}
+        <label className="flex items-center gap-3 cursor-pointer group">
+          <div className={`w-5 h-5 rounded-md border-2 flex items-center justify-center transition-all duration-200 ${
+            settings.includeUrl
+              ? 'border-indigo-500 bg-indigo-500'
+              : 'border-gray-300 dark:border-gray-600 group-hover:border-indigo-400'
+          }`}>
+            {settings.includeUrl && (
+              <svg className="w-3 h-3 text-white" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="3">
+                <path d="M5 13l4 4L19 7"/>
+              </svg>
+            )}
+          </div>
+          <input
+            type="checkbox"
+            checked={settings.includeUrl}
+            onChange={(e) => onSettingsChange({ includeUrl: e.target.checked })}
+            className="hidden"
+          />
+          <span className="text-sm text-gray-700 dark:text-gray-300 group-hover:text-gray-900 dark:group-hover:text-white transition-colors">
+            包含原文链接
+          </span>
+        </label>
 
-      <label className="flex items-center gap-2 cursor-pointer">
-        <input
-          type="checkbox"
-          checked={settings.simplifyMode}
-          onChange={(e) => onSettingsChange({ simplifyMode: e.target.checked })}
-          className="w-4 h-4 text-blue-500 rounded focus:ring-blue-500"
-        />
-        <span className="text-sm text-gray-700 dark:text-gray-300">简化模式（去除广告）</span>
-      </label>
+        {/* 简化模式 */}
+        <label className="flex items-center gap-3 cursor-pointer group">
+          <div className={`w-5 h-5 rounded-md border-2 flex items-center justify-center transition-all duration-200 ${
+            settings.simplifyMode
+              ? 'border-indigo-500 bg-indigo-500'
+              : 'border-gray-300 dark:border-gray-600 group-hover:border-indigo-400'
+          }`}>
+            {settings.simplifyMode && (
+              <svg className="w-3 h-3 text-white" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="3">
+                <path d="M5 13l4 4L19 7"/>
+              </svg>
+            )}
+          </div>
+          <input
+            type="checkbox"
+            checked={settings.simplifyMode}
+            onChange={(e) => onSettingsChange({ simplifyMode: e.target.checked })}
+            className="hidden"
+          />
+          <span className="text-sm text-gray-700 dark:text-gray-300 group-hover:text-gray-900 dark:group-hover:text-white transition-colors">
+            简化模式
+          </span>
+        </label>
+      </div>
 
+      {/* 图片处理 */}
       <div className="pt-2">
-        <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+        <label className="block text-xs font-semibold text-gray-500 dark:text-gray-400 uppercase tracking-wider mb-2">
           图片处理
         </label>
-        <select
-          value={settings.imageMode}
-          onChange={(e) => onSettingsChange({ imageMode: e.target.value as UserSettings['imageMode'] })}
-          className="w-full py-2 px-3 text-sm border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-800 text-gray-900 dark:text-white focus:ring-2 focus:ring-blue-500 focus:border-transparent"
-        >
-          <option value="url">保留URL链接</option>
-          <option value="base64">转为Base64</option>
-          <option value="download">下载到本地</option>
-        </select>
+        <div className="relative">
+          <select
+            value={settings.imageMode}
+            onChange={(e) => onSettingsChange({ imageMode: e.target.value as UserSettings['imageMode'] })}
+            className="w-full py-2.5 px-3 text-sm appearance-none bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 rounded-lg text-gray-900 dark:text-white focus:ring-2 focus:ring-indigo-500 focus:border-transparent transition-all duration-200 cursor-pointer"
+          >
+            <option value="url">保留 URL 链接</option>
+            <option value="base64">转为 Base64</option>
+            <option value="download">下载到本地</option>
+          </select>
+          <div className="absolute right-3 top-1/2 -translate-y-1/2 pointer-events-none text-gray-400">
+            <svg className="w-4 h-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+              <path d="M19 9l-7 7-7-7"/>
+            </svg>
+          </div>
+        </div>
       </div>
     </div>
   );

src/popup/components/PreviewModal.tsx

@@ -20,72 +20,97 @@ export function PreviewModal({ content, onClose, onCopy, onDownload }: PreviewMo
   });
 
   return (
-    <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
-      <div className="bg-white dark:bg-gray-900 rounded-xl shadow-2xl w-full max-w-lg mx-4 max-h-[80vh] flex flex-col">
+    <div className="fixed inset-0 bg-black/60 backdrop-blur-sm flex items-center justify-center z-50 p-4 animate-fade-in">
+      <div className="bg-white dark:bg-gray-800 rounded-2xl shadow-2xl w-full max-w-lg overflow-hidden animate-scale-in">
         {/* 标题栏 */}
-        <div className="flex items-center justify-between p-4 border-b dark:border-gray-700">
-          <h3 className="font-semibold text-gray-900 dark:text-white">预览</h3>
+        <div className="flex items-center justify-between px-5 py-4 border-b border-gray-100 dark:border-gray-700">
+          <div className="flex items-center gap-3">
+            <div className="w-8 h-8 rounded-lg bg-indigo-100 dark:bg-indigo-900/30 flex items-center justify-center">
+              <svg className="w-4 h-4 text-indigo-600 dark:text-indigo-400" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+                <path d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"/>
+              </svg>
+            </div>
+            <div>
+              <h3 className="font-semibold text-gray-900 dark:text-white">预览</h3>
+              <p className="text-xs text-gray-500 dark:text-gray-400 truncate max-w-[200px]">{content.title}</p>
+            </div>
+          </div>
           <button
             onClick={onClose}
-            className="text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200"
+            className="w-8 h-8 rounded-lg text-gray-400 hover:text-gray-600 dark:hover:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700 transition-all flex items-center justify-center"
           >
-            <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
+            <svg className="w-5 h-5" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+              <path d="M6 18L18 6M6 6l12 12"/>
             </svg>
           </button>
         </div>
 
         {/* 内容预览 */}
-        <div className="flex-1 overflow-auto p-4">
-          <div className="text-sm text-gray-600 dark:text-gray-400 mb-2">{content.title}</div>
-
+        <div className="p-5 max-h-72 overflow-auto">
           {/* 切换按钮 */}
-          <div className="flex gap-2 mb-3">
+          <div className="flex gap-1 p-1 bg-gray-100 dark:bg-gray-700/50 rounded-lg mb-4">
             <button
               onClick={() => setShowRaw(false)}
-              className={`px-3 py-1 text-xs rounded ${!showRaw ? 'bg-blue-500 text-white' : 'bg-gray-200 dark:bg-gray-700'}`}
+              className={`flex-1 py-2 text-xs font-medium rounded-md transition-all duration-200 ${
+                !showRaw
+                  ? 'bg-white dark:bg-gray-700 text-gray-900 dark:text-white shadow-sm'
+                  : 'text-gray-600 dark:text-gray-400'
+              }`}
             >
               渲染预览
             </button>
             <button
               onClick={() => setShowRaw(true)}
-              className={`px-3 py-1 text-xs rounded ${showRaw ? 'bg-blue-500 text-white' : 'bg-gray-200 dark:bg-gray-700'}`}
+              className={`flex-1 py-2 text-xs font-medium rounded-md transition-all duration-200 ${
+                showRaw
+                  ? 'bg-white dark:bg-gray-700 text-gray-900 dark:text-white shadow-sm'
+                  : 'text-gray-600 dark:text-gray-400'
+              }`}
             >
-              原始Markdown
+              原始内容
             </button>
           </div>
 
           {showRaw ? (
-            <pre className="text-xs bg-gray-100 dark:bg-gray-800 p-3 rounded overflow-auto max-h-64 whitespace-pre-wrap">
+            <pre className="text-xs bg-gray-50 dark:bg-gray-900 p-4 rounded-xl overflow-auto max-h-56 whitespace-pre-wrap font-mono text-gray-700 dark:text-gray-300">
               {markdown}
             </pre>
           ) : (
             <div
-              className="prose prose-sm max-w-none dark:prose-invert overflow-auto max-h-64"
+              className="prose prose-sm max-w-none dark:prose-invert overflow-auto max-h-56 text-gray-600 dark:text-gray-400"
               dangerouslySetInnerHTML={{
                 __html: content.markdown
-                  .replace(/^# .+$/m, '') // 移除标题
-                  .replace(/> .+$/gm, '') // 移除引用
-                  .replace(/```[\s\S]*?```/g, '[代码块]') // 简化代码块
-                  .replace(/\n/g, '<br/>') // 换行
+                  .replace(/^# .+$/m, '')
+                  .replace(/> .+$/gm, '')
+                  .replace(/```[\s\S]*?```/g, '[代码块]')
+                  .replace(/\n/g, '<br/>')
               }}
             />
           )}
         </div>
 
         {/* 操作按钮 */}
-        <div className="p-4 border-t dark:border-gray-700 flex gap-2">
+        <div className="px-5 py-4 bg-gray-50 dark:bg-gray-800/50 border-t border-gray-100 dark:border-gray-700 flex gap-3">
           <button
             onClick={onCopy}
-            className="flex-1 py-2 px-4 bg-blue-500 hover:bg-blue-600 text-white rounded-lg text-sm font-medium transition-colors"
+            className="flex-1 py-2.5 px-4 bg-white dark:bg-gray-700 hover:bg-gray-50 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-200 rounded-xl text-sm font-medium border border-gray-200 dark:border-gray-600 transition-all duration-200 flex items-center justify-center gap-2"
           >
-            复制到剪贴板
+            <svg className="w-4 h-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+              <rect x="9" y="9" width="13" height="13" rx="2" ry="2"/>
+              <path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"/>
+            </svg>
+            复制
           </button>
           <button
             onClick={onDownload}
-            className="flex-1 py-2 px-4 bg-green-500 hover:bg-green-600 text-white rounded-lg text-sm font-medium transition-colors"
+            className="flex-1 py-2.5 px-4 bg-gradient-to-r from-indigo-500 to-violet-600 hover:from-indigo-600 hover:to-violet-700 text-white rounded-xl text-sm font-medium shadow-lg shadow-indigo-500/25 transition-all duration-200 flex items-center justify-center gap-2"
           >
-            下载MD文件
+            <svg className="w-4 h-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+              <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/>
+              <polyline points="7 10 12 15 17 10"/>
+              <line x1="12" y1="15" x2="12" y2="3"/>
+            </svg>
+            下载
           </button>
         </div>
       </div>