feat: 優化詞卡管理頁面體驗

- 重新設計手機版詞卡布局，圖片放左上角，翻譯在詞彙下方
- 新增播放按鈕到詞卡列表，桌面版在音標旁，手機版在詞性旁
- 移除手機版音標顯示，精簡界面
- 調整 CEFR 和詞性標籤位置，底部左右分布更合理
- Logo 導航從儀表板改為詞卡頁面，保持導航一致性

🤖 Generated with [Claude Code](https://claude.ai/code)

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

frontend/app/login/page.tsx

@@ -104,9 +104,9 @@ export default function LoginPage() {
               />
               <span className="ml-2 text-sm text-gray-600">記住我</span>
             </label>
-            <Link href="/forgot-password" className="text-sm text-primary hover:text-primary-hover">
+            {/* <Link href="/forgot-password" className="text-sm text-primary hover:text-primary-hover">
               忘記密碼？
-            </Link>
+            </Link> */}
           </div>
 
           <button
@@ -118,7 +118,7 @@ export default function LoginPage() {
           </button>
         </form>
 
-        <div className="mt-6">
+        {/* <div className="mt-6">
           <div className="relative">
             <div className="absolute inset-0 flex items-center">
               <div className="w-full border-t border-gray-300"></div>
@@ -141,7 +141,7 @@ export default function LoginPage() {
             </svg>
             使用 Google 登入
           </button>
-        </div>
+        </div> */}
 
         <p className="mt-8 text-center text-sm text-gray-600">
           還沒有帳號？{' '}

frontend/app/register/page.tsx

@@ -206,7 +206,7 @@ export default function RegisterPage() {
           </button>
         </form>
 
-        <div className="mt-6">
+        {/* <div className="mt-6">
           <div className="relative">
             <div className="absolute inset-0 flex items-center">
               <div className="w-full border-t border-gray-300"></div>
@@ -229,7 +229,7 @@ export default function RegisterPage() {
             </svg>
             使用 Google 註冊
           </button>
-        </div>
+        </div> */}
 
         <p className="mt-8 text-center text-sm text-gray-600">
           已經有帳號？{' '}

frontend/components/flashcards/FlashcardCard.tsx

@@ -2,6 +2,7 @@ import React from 'react'
 import Link from 'next/link'
 import { Flashcard } from '@/lib/services/flashcards'
 import { getCEFRColor, getFlashcardImageUrl, getPartOfSpeechDisplay } from '@/lib/utils/flashcardUtils'
+import { BluePlayButton } from '@/components/shared/BluePlayButton'
 
 interface FlashcardCardProps {
   flashcard: Flashcard
@@ -36,8 +37,8 @@ export const FlashcardCard: React.FC<FlashcardCardProps> = ({
 
   return (
     <div className="bg-white border border-gray-200 rounded-lg hover:shadow-md transition-all duration-200 relative overflow-hidden">
-      {/* CEFR標註 */}
-      <div className="absolute top-3 right-3 z-10">
+      {/* CEFR標註 - 只在桌面版顯示 */}
+      <div className="absolute top-3 right-3 z-10 hidden md:block">
         <span className={`text-xs px-2 py-1 rounded-full font-medium border ${getCEFRColor(flashcard.cefr || 'A1')}`}>
           {flashcard.cefr || 'A1'}
         </span>
@@ -45,26 +46,66 @@ export const FlashcardCard: React.FC<FlashcardCardProps> = ({
 
       {/* 手機版布局 */}
       <div className="block md:hidden p-4">
-        {/* 主要內容區 */}
-        <div className="pr-14 mb-4">
-          <h3 className="text-lg font-bold text-gray-900 mb-1 leading-tight">
-            {searchTerm ? highlightSearchTerm(flashcard.word || '未設定', searchTerm) : (flashcard.word || '未設定')}
-          </h3>
-          <p className="text-gray-900 font-medium mb-2 leading-tight">
-            {searchTerm ? highlightSearchTerm(flashcard.translation || '未設定', searchTerm) : (flashcard.translation || '未設定')}
-          </p>
-          <div className="flex flex-wrap items-center gap-2 text-xs text-gray-500">
-            <span className="bg-gray-100 text-gray-700 px-2 py-1 rounded">
-              {getPartOfSpeechDisplay(flashcard.partOfSpeech)}
-            </span>
-            {flashcard.pronunciation && (
-              <span>{flashcard.pronunciation}</span>
+        {/* 頂部區域：圖片和詞彙信息 */}
+        <div className="flex gap-3 mb-3">
+          {/* 圖片區域 */}
+          <div className="w-16 h-16 bg-gray-100 rounded-lg overflow-hidden border border-gray-200 flex items-center justify-center flex-shrink-0">
+            {hasExampleImage(flashcard) ? (
+              <img
+                src={getExampleImage(flashcard)!}
+                alt={`${flashcard.word} example`}
+                className="w-full h-full object-cover"
+              />
+            ) : (
+              <div
+                className="w-full h-full flex items-center justify-center cursor-pointer hover:bg-blue-50 transition-colors group"
+                onClick={onImageGenerate}
+                title="點擊生成例句圖片"
+              >
+                {isGenerating ? (
+                  <div className="animate-spin w-4 h-4 border-2 border-blue-600 border-t-transparent rounded-full"></div>
+                ) : (
+                  <svg className="w-6 h-6 text-gray-400 group-hover:text-blue-600 transition-colors" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 4v16m8-8H4" />
+                  </svg>
+                )}
+              </div>
             )}
           </div>
+
+          {/* 詞彙信息 */}
+          <div className="flex-1">
+            <h3 className="text-lg font-bold text-gray-900 mb-1 leading-tight">
+              {searchTerm ? highlightSearchTerm(flashcard.word || '未設定', searchTerm) : (flashcard.word || '未設定')}
+            </h3>
+            <p className="text-gray-900 font-medium leading-tight">
+              {searchTerm ? highlightSearchTerm(flashcard.translation || '未設定', searchTerm) : (flashcard.translation || '未設定')}
+            </p>
+          </div>
         </div>
 
-        {/* 操作按鈕區 */}
-        <div className="flex items-center justify-between">
+        {/* 底部操作區域 */}
+        <div className="flex items-center justify-between mt-3">
+          {/* 左側：CEFR + 詞性 + 播放按鈕 */}
+          <div className="flex items-center gap-2">
+            <span className={`text-xs px-2 py-1 rounded-full font-medium border ${getCEFRColor(flashcard.cefr || 'A1')}`}>
+              {flashcard.cefr || 'A1'}
+            </span>
+            <span className="bg-gray-100 text-gray-700 px-2 py-1 rounded text-xs">
+              {getPartOfSpeechDisplay(flashcard.partOfSpeech)}
+            </span>
+            {flashcard.word && (
+              <BluePlayButton
+                text={flashcard.word}
+                lang="en-US"
+                size="md"
+                title="點擊聽詞彙發音"
+                className="w-6 h-6"
+              />
+            )}
+          </div>
+
+          {/* 右側：操作按鈕 */}
           <div className="flex items-center gap-1">
             <button
               onClick={onFavorite}
@@ -86,33 +127,6 @@ export const FlashcardCard: React.FC<FlashcardCardProps> = ({
               </svg>
             </button>
 
-            {hasExampleImage(flashcard) ? (
-              <div className="w-8 h-8 bg-gray-100 rounded overflow-hidden">
-                <img src={getExampleImage(flashcard)!} alt="" className="w-full h-full object-cover" />
-              </div>
-            ) : (
-              <button
-                onClick={onImageGenerate}
-                className="p-2 text-gray-400 hover:text-blue-600 hover:bg-blue-50 rounded-lg transition-colors"
-              >
-                {isGenerating ? (
-                  <div className="animate-spin w-5 h-5 border-2 border-blue-600 border-t-transparent rounded-full"></div>
-                ) : (
-                  <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
-                  </svg>
-                )}
-              </button>
-            )}
-          </div>
-
-          <div className="flex items-center gap-2">
-            <Link
-              href={`/flashcards/${flashcard.id}`}
-              className="px-3 py-1 bg-gray-100 text-gray-700 rounded text-sm hover:bg-gray-200 transition-colors"
-            >
-              詳細
-            </Link>
             <button
               onClick={onDelete}
               className="p-2 text-red-600 hover:bg-red-50 rounded-lg transition-colors"
@@ -121,6 +135,15 @@ export const FlashcardCard: React.FC<FlashcardCardProps> = ({
                 <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" />
               </svg>
             </button>
+
+            <Link
+              href={`/flashcards/${flashcard.id}`}
+              className="p-2 text-gray-600 hover:bg-gray-50 rounded-lg transition-colors"
+            >
+              <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 5l7 7-7 7" />
+              </svg>
+            </Link>
           </div>
         </div>
       </div>
@@ -176,7 +199,18 @@ export const FlashcardCard: React.FC<FlashcardCardProps> = ({
                 {searchTerm ? highlightSearchTerm(flashcard.translation || '未設定', searchTerm) : (flashcard.translation || '未設定')}
               </span>
               {flashcard.pronunciation && (
-                <span className="text-sm text-gray-500">{flashcard.pronunciation}</span>
+                <div className="flex items-center gap-2">
+                  <span className="text-sm text-gray-500">{flashcard.pronunciation}</span>
+                  {flashcard.word && (
+                    <BluePlayButton
+                      text={flashcard.word}
+                      lang="en-US"
+                      size="md"
+                      title="點擊聽詞彙發音"
+                      className="w-6 h-6"
+                    />
+                  )}
+                </div>
               )}
             </div>
 

frontend/components/shared/Navigation.tsx

@@ -41,7 +41,7 @@ export function Navigation({ showExitLearning = false, onExitLearning }: Navigat
               </svg>
             </button>
 
-            <Link href="/dashboard" className="text-2xl font-bold text-primary">
+            <Link href="/flashcards" className="text-2xl font-bold text-primary">
               DramaLing
             </Link>
 
@@ -91,12 +91,12 @@ export function Navigation({ showExitLearning = false, onExitLearning }: Navigat
                     </div>
                     <span className="text-sm font-medium text-gray-700">{user?.displayName || user?.username}</span>
                   </Link>
-                  <button
+                  {/* <button
                     onClick={logout}
                     className="text-sm text-gray-600 hover:text-gray-900 px-2 py-1 hover:bg-gray-100 rounded"
                   >
                     登出
-                  </button>
+                  </button> */}
                 </div>
               </>
             )}
@@ -134,7 +134,7 @@ export function Navigation({ showExitLearning = false, onExitLearning }: Navigat
                   </div>
                   <span className="text-sm font-medium">{user?.username}</span>
                 </Link>
-                <button
+                {/* <button
                   onClick={() => {
                     logout()
                     setIsMobileMenuOpen(false)
@@ -142,7 +142,7 @@ export function Navigation({ showExitLearning = false, onExitLearning }: Navigat
                   className="w-full text-left py-2 px-3 text-gray-600 hover:text-gray-900 hover:bg-gray-100 rounded-lg"
                 >
                   登出
-                </button>
+                </button> */}
               </div>
             </div>
           </div>