fix(mobile-app): 优化数字显示组件防止自动换行

使用 FittedBox(fit: BoxFit.scaleDown) 包装所有可变数字显示组件，
确保当数字位数多时自动缩小字号而不是换行，提升用户视觉体验。

优化的页面和组件：
- stickman_race_widget: 火柴人标签、排名列表数量、进度百分比
- team_tree_widget: 节点认种数、省略节点数量、详情弹窗
- ranking_page: 龙虎榜团队认种量
- trading_page: DST余额、绿积分余额
- profile_page: 各类收益金额、奖励项金额
- withdraw_usdt_page: 提款页余额
- deposit_usdt_page: 充值页余额
- ledger_detail_page: 净收益、收支概览、流水金额
- authorization_apply_page: 累计认种数
- planting_quantity_page: 可用余额
- mining_page: 用户序列号
- account_switch_page: 账号用户名、序列号
- wallet_created_page: 钱包地址信息

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/mobile-app/lib/features/account/presentation/pages/account_switch_page.dart

@@ -273,7 +273,11 @@ class _AccountSwitchPageState extends ConsumerState<AccountSwitchPage> {
                   children: [
                     Row(
                       children: [
-                        Text(
+                        Flexible(
+                          child: FittedBox(
+                            fit: BoxFit.scaleDown,
+                            alignment: Alignment.centerLeft,
+                            child: Text(
                               account.username,
                               style: const TextStyle(
                                 fontSize: 16,
@@ -282,6 +286,8 @@ class _AccountSwitchPageState extends ConsumerState<AccountSwitchPage> {
                                 color: Color(0xFF5D4037),
                               ),
                             ),
+                          ),
+                        ),
                         if (isCurrent) ...[
                           const SizedBox(width: 8),
                           Container(
@@ -306,7 +312,10 @@ class _AccountSwitchPageState extends ConsumerState<AccountSwitchPage> {
                       ],
                     ),
                     const SizedBox(height: 4),
-                    Text(
+                    FittedBox(
+                      fit: BoxFit.scaleDown,
+                      alignment: Alignment.centerLeft,
+                      child: Text(
                         account.userSerialNum,
                         style: const TextStyle(
                           fontSize: 12,
@@ -314,6 +323,7 @@ class _AccountSwitchPageState extends ConsumerState<AccountSwitchPage> {
                           color: Color(0x995D4037),
                         ),
                       ),
+                    ),
                   ],
                 ),
               ),

frontend/mobile-app/lib/features/auth/presentation/pages/wallet_created_page.dart

@@ -304,6 +304,9 @@ class WalletCreatedPage extends ConsumerWidget {
           const SizedBox(width: 14),
           // 标签和值 - 单行显示 "标签: 值"
           Expanded(
+            child: FittedBox(
+              fit: BoxFit.scaleDown,
+              alignment: Alignment.centerLeft,
               child: Text(
                 '$label: $displayValue',
                 style: const TextStyle(
@@ -315,6 +318,7 @@ class WalletCreatedPage extends ConsumerWidget {
                 ),
               ),
             ),
+          ),
           // 复制按钮
           GestureDetector(
             onTap: () => _copyToClipboard(context, value, label),

frontend/mobile-app/lib/features/authorization/presentation/pages/authorization_apply_page.dart

@@ -832,7 +832,10 @@ class _AuthorizationApplyPageState
                   ),
                 ),
                 const SizedBox(height: 4),
-                Text(
+                FittedBox(
+                  fit: BoxFit.scaleDown,
+                  alignment: Alignment.centerLeft,
+                  child: Text(
                     _hasPlanted ? '累计认种 $_plantedCount 棵' : '请先完成认种后再申请授权',
                     style: const TextStyle(
                       fontSize: 14,
@@ -840,6 +843,7 @@ class _AuthorizationApplyPageState
                       color: Color(0xFF745D43),
                     ),
                   ),
+                ),
               ],
             ),
           ),

frontend/mobile-app/lib/features/authorization/presentation/widgets/stickman_race_widget.dart

@@ -248,6 +248,7 @@ class _StickmanRaceWidgetState extends State<StickmanRaceWidget>
             children: [
               // 完成数量标签
               Container(
+                constraints: const BoxConstraints(maxWidth: 60),
                 padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
                 decoration: BoxDecoration(
                   color: data.isCurrentUser
@@ -255,6 +256,8 @@ class _StickmanRaceWidgetState extends State<StickmanRaceWidget>
                       : const Color(0xFF8B5A2B),
                   borderRadius: BorderRadius.circular(8),
                 ),
+                child: FittedBox(
+                  fit: BoxFit.scaleDown,
                   child: Text(
                     '${_formatNumber(data.completedCount)}棵',
                     style: const TextStyle(
@@ -265,6 +268,7 @@ class _StickmanRaceWidgetState extends State<StickmanRaceWidget>
                     ),
                   ),
                 ),
+              ),
               const SizedBox(height: 2),
 
               // 火柴人动画
@@ -481,7 +485,10 @@ class _StickmanRaceWidgetState extends State<StickmanRaceWidget>
                   ],
                 ),
                 const SizedBox(height: 2),
-                Text(
+                FittedBox(
+                  fit: BoxFit.scaleDown,
+                  alignment: Alignment.centerLeft,
+                  child: Text(
                     '本月收益: ${_formatCurrency(data.monthlyEarnings)} 绿积分',
                     style: const TextStyle(
                       fontSize: 11,
@@ -489,15 +496,21 @@ class _StickmanRaceWidgetState extends State<StickmanRaceWidget>
                       color: Color(0xFF8B5A2B),
                     ),
                   ),
+                ),
               ],
             ),
           ),
 
           // 完成数量和进度
-          Column(
+          ConstrainedBox(
+            constraints: const BoxConstraints(maxWidth: 100),
+            child: Column(
               crossAxisAlignment: CrossAxisAlignment.end,
               children: [
-              Text(
+                FittedBox(
+                  fit: BoxFit.scaleDown,
+                  alignment: Alignment.centerRight,
+                  child: Text(
                     '${_formatNumber(data.completedCount)}棵',
                     style: const TextStyle(
                       fontSize: 16,
@@ -506,8 +519,12 @@ class _StickmanRaceWidgetState extends State<StickmanRaceWidget>
                       color: Color(0xFFD4AF37),
                     ),
                   ),
+                ),
                 const SizedBox(height: 2),
-              Text(
+                FittedBox(
+                  fit: BoxFit.scaleDown,
+                  alignment: Alignment.centerRight,
+                  child: Text(
                     '${(data.progress * 100).toStringAsFixed(1)}%',
                     style: const TextStyle(
                       fontSize: 11,
@@ -515,8 +532,10 @@ class _StickmanRaceWidgetState extends State<StickmanRaceWidget>
                       color: Color(0xFF8B5A2B),
                     ),
                   ),
+                ),
               ],
             ),
+          ),
         ],
       ),
     );

frontend/mobile-app/lib/features/deposit/presentation/pages/deposit_usdt_page.dart

@@ -378,6 +378,9 @@ class _DepositUsdtPageState extends ConsumerState<DepositUsdtPage> {
     return Container(
       width: double.infinity,
       padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+      child: FittedBox(
+        fit: BoxFit.scaleDown,
+        alignment: Alignment.centerLeft,
         child: Text(
           '可用余额: $_balance 绿积分',
           style: TextStyle(
@@ -387,6 +390,7 @@ class _DepositUsdtPageState extends ConsumerState<DepositUsdtPage> {
             color: const Color(0xFF5D4037).withValues(alpha: 0.8),
           ),
         ),
+      ),
     );
   }
 

frontend/mobile-app/lib/features/mining/presentation/pages/mining_page.dart

@@ -420,7 +420,10 @@ class _MiningPageState extends ConsumerState<MiningPage> {
                     ],
                   )
                 else if (_walletStatus == WalletCreationStatus.ready)
-                  Text(
+                  FittedBox(
+                    fit: BoxFit.scaleDown,
+                    alignment: Alignment.centerLeft,
+                    child: Text(
                       '序列号$_serialNumber',
                       style: const TextStyle(
                         fontSize: 20,
@@ -430,6 +433,7 @@ class _MiningPageState extends ConsumerState<MiningPage> {
                         letterSpacing: -0.3,
                         color: Color(0xFF5D4037),
                       ),
+                    ),
                   )
                 else
                   // unknown 状态也显示"创建账号审核中..."

frontend/mobile-app/lib/features/planting/presentation/pages/planting_quantity_page.dart

@@ -423,7 +423,9 @@ class _PlantingQuantityPageState extends ConsumerState<PlantingQuantityPage> {
                         ),
                       ),
                     )
-                  : Text(
+                  : FittedBox(
+                      fit: BoxFit.scaleDown,
+                      child: Text(
                         _formatNumber(_availableBalance),
                         style: const TextStyle(
                           fontSize: 36,
@@ -434,6 +436,7 @@ class _PlantingQuantityPageState extends ConsumerState<PlantingQuantityPage> {
                           color: Color(0xFF5D4037),
                         ),
                       ),
+                    ),
         ],
       ),
     );

frontend/mobile-app/lib/features/profile/presentation/pages/profile_page.dart

@@ -2029,7 +2029,11 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                     color: Color(0xCC5D4037),
                   ),
                 ),
-                Text(
+                Flexible(
+                  child: FittedBox(
+                    fit: BoxFit.scaleDown,
+                    alignment: Alignment.centerLeft,
+                    child: Text(
                       _formatNumber(_pendingUsdt),
                       style: const TextStyle(
                         fontSize: 16,
@@ -2039,6 +2043,8 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                         color: Color(0xFF5D4037),
                       ),
                     ),
+                  ),
+                ),
               ],
             ),
             // TODO: 暂时隐藏贡献值显示
@@ -2183,7 +2189,10 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                   ),
                   const SizedBox(height: 8),
                   // 第二行：金额信息
-                  Text(
+                  FittedBox(
+                    fit: BoxFit.scaleDown,
+                    alignment: Alignment.centerLeft,
+                    child: Text(
                       amountText,
                       style: const TextStyle(
                         fontSize: 16,
@@ -2192,6 +2201,7 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                         color: Color(0xFF5D4037),
                       ),
                     ),
+                  ),
                   // 第三行：备注信息
                   if (item.memo.isNotEmpty) ...[
                     const SizedBox(height: 4),
@@ -2310,7 +2320,10 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
           ),
           const SizedBox(height: 8),
           // 第二行：金额信息
-          Text(
+          FittedBox(
+            fit: BoxFit.scaleDown,
+            alignment: Alignment.centerLeft,
+            child: Text(
               amountText,
               style: const TextStyle(
                 fontSize: 16,
@@ -2319,6 +2332,7 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                 color: Color(0xFF5D4037),
               ),
             ),
+          ),
           // 第三行：备注信息（如果有）
           if (item.memo.isNotEmpty) ...[
             const SizedBox(height: 4),
@@ -2366,7 +2380,11 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                   color: Color(0xCC5D4037),
                 ),
               ),
-              Text(
+              Flexible(
+                child: FittedBox(
+                  fit: BoxFit.scaleDown,
+                  alignment: Alignment.centerLeft,
+                  child: Text(
                     _formatNumber(_settleableUsdt),
                     style: const TextStyle(
                       fontSize: 14,
@@ -2376,6 +2394,8 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                       color: Color(0xFF5D4037),
                     ),
                   ),
+                ),
+              ),
             ],
           ),
           // 可结算奖励明细列表
@@ -2432,7 +2452,11 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                       color: Color(0xCC5D4037),
                     ),
                   ),
-                  Text(
+                  Flexible(
+                    child: FittedBox(
+                      fit: BoxFit.scaleDown,
+                      alignment: Alignment.centerLeft,
+                      child: Text(
                         _formatNumber(_settledUsdt),
                         style: const TextStyle(
                           fontSize: 14,
@@ -2442,6 +2466,8 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                           color: Color(0xFF5D4037),
                         ),
                       ),
+                    ),
+                  ),
                 ],
               ),
               GestureDetector(
@@ -2539,7 +2565,10 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
           ),
           const SizedBox(height: 8),
           // 第二行：金额信息
-          Text(
+          FittedBox(
+            fit: BoxFit.scaleDown,
+            alignment: Alignment.centerLeft,
+            child: Text(
               amountText,
               style: const TextStyle(
                 fontSize: 16,
@@ -2548,6 +2577,7 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                 color: Color(0xFF5D4037),
               ),
             ),
+          ),
         ],
       ),
     );
@@ -2622,7 +2652,10 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                   ),
                   const SizedBox(height: 8),
                   // 第二行：金额信息
-                  Text(
+                  FittedBox(
+                    fit: BoxFit.scaleDown,
+                    alignment: Alignment.centerLeft,
+                    child: Text(
                       amountText,
                       style: const TextStyle(
                         fontSize: 16,
@@ -2631,6 +2664,7 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                         color: Color(0xFF5D4037),
                       ),
                     ),
+                  ),
                 ],
               ),
             )
@@ -2649,7 +2683,11 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                       color: Color(0xFF5D4037),
                     ),
                   ),
-                  Text(
+                  Flexible(
+                    child: FittedBox(
+                      fit: BoxFit.scaleDown,
+                      alignment: Alignment.centerRight,
+                      child: Text(
                         amountText,
                         style: const TextStyle(
                           fontSize: 13,
@@ -2658,6 +2696,8 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                           color: Color(0xFF4CAF50),
                         ),
                       ),
+                    ),
+                  ),
                 ],
               ),
             ),
@@ -2705,7 +2745,11 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                   color: Color(0xCC5D4037),
                 ),
               ),
-              Text(
+              Flexible(
+                child: FittedBox(
+                  fit: BoxFit.scaleDown,
+                  alignment: Alignment.centerLeft,
+                  child: Text(
                     _formatNumber(_expiredUsdt),
                     style: const TextStyle(
                       fontSize: 14,
@@ -2715,6 +2759,8 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                       color: Color(0xFF5D4037),
                     ),
                   ),
+                ),
+              ),
             ],
           ),
           // TODO: 暂时隐藏贡献值显示
@@ -2853,7 +2899,10 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
           ),
           const SizedBox(height: 8),
           // 第二行：金额信息
-          Text(
+          FittedBox(
+            fit: BoxFit.scaleDown,
+            alignment: Alignment.centerLeft,
+            child: Text(
               amountText,
               style: const TextStyle(
                 fontSize: 16,
@@ -2862,6 +2911,7 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                 color: Color(0xFF999999),  // 灰色文字
               ),
             ),
+          ),
         ],
       ),
     );
@@ -2935,7 +2985,10 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                   ),
                   const SizedBox(height: 8),
                   // 第二行：金额信息
-                  Text(
+                  FittedBox(
+                    fit: BoxFit.scaleDown,
+                    alignment: Alignment.centerLeft,
+                    child: Text(
                       amountText,
                       style: const TextStyle(
                         fontSize: 16,
@@ -2944,6 +2997,7 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                         color: Color(0xFF999999),
                       ),
                     ),
+                  ),
                 ],
               ),
             )
@@ -2962,7 +3016,11 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                       color: Color(0xFF999999),
                     ),
                   ),
-                  Text(
+                  Flexible(
+                    child: FittedBox(
+                      fit: BoxFit.scaleDown,
+                      alignment: Alignment.centerRight,
+                      child: Text(
                         amountText,
                         style: const TextStyle(
                           fontSize: 13,
@@ -2971,6 +3029,8 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
                           color: Color(0xFFE57373),
                         ),
                       ),
+                    ),
+                  ),
                 ],
               ),
             ),

frontend/mobile-app/lib/features/profile/presentation/widgets/team_tree_widget.dart

@@ -240,7 +240,9 @@ class _TeamTreeWidgetState extends State<TeamTreeWidget> {
                   ),
                   const SizedBox(height: 2),
                   // 个人/团队认种数
-                  Text(
+                  FittedBox(
+                    fit: BoxFit.scaleDown,
+                    child: Text(
                       '${node.personalPlantingCount}/${node.teamPlantingCount}',
                       style: const TextStyle(
                         fontSize: 11,
@@ -249,6 +251,7 @@ class _TeamTreeWidgetState extends State<TeamTreeWidget> {
                         color: Color(0xCC5D4037),
                       ),
                     ),
+                  ),
                   const SizedBox(height: 4),
                   // 展开/收起按钮
                   if (node.hasChildren)
@@ -303,7 +306,9 @@ class _TeamTreeWidgetState extends State<TeamTreeWidget> {
                 color: Color(0xFF666666),
               ),
             ),
-            Text(
+            FittedBox(
+              fit: BoxFit.scaleDown,
+              child: Text(
                 '+${hiddenNodes.length}',
                 style: const TextStyle(
                   fontSize: 11,
@@ -312,6 +317,7 @@ class _TeamTreeWidgetState extends State<TeamTreeWidget> {
                   color: Color(0xFF666666),
                 ),
               ),
+            ),
           ],
         ),
       ),
@@ -534,7 +540,10 @@ class _HiddenNodesSheet extends StatelessWidget {
                       color: Color(0xFF5D4037),
                     ),
                   ),
-                  subtitle: Text(
+                  subtitle: FittedBox(
+                    fit: BoxFit.scaleDown,
+                    alignment: Alignment.centerLeft,
+                    child: Text(
                       '个人/团队: ${node.personalPlantingCount}/${node.teamPlantingCount}',
                       style: const TextStyle(
                         fontSize: 12,
@@ -542,6 +551,7 @@ class _HiddenNodesSheet extends StatelessWidget {
                         color: Color(0xCC5D4037),
                       ),
                     ),
+                  ),
                   trailing: node.hasChildren
                       ? Text(
                           '${node.directReferralCount}人',
@@ -740,7 +750,11 @@ class _NodeDetailsSheet extends StatelessWidget {
             color: Color(0xFF8B5A2B),
           ),
         ),
-        Text(
+        Flexible(
+          child: FittedBox(
+            fit: BoxFit.scaleDown,
+            alignment: Alignment.centerRight,
+            child: Text(
               value,
               style: const TextStyle(
                 fontSize: 14,
@@ -749,6 +763,8 @@ class _NodeDetailsSheet extends StatelessWidget {
                 color: Color(0xFF5D4037),
               ),
             ),
+          ),
+        ),
       ],
     );
   }

frontend/mobile-app/lib/features/ranking/presentation/pages/ranking_page.dart

@@ -381,10 +381,15 @@ class _RankingPageState extends ConsumerState<RankingPage> {
             ),
           ),
           // 团队认种量
-          Column(
+          ConstrainedBox(
+            constraints: const BoxConstraints(maxWidth: 100),
+            child: Column(
               crossAxisAlignment: CrossAxisAlignment.end,
               children: [
-              Text(
+                FittedBox(
+                  fit: BoxFit.scaleDown,
+                  alignment: Alignment.centerRight,
+                  child: Text(
                     _formatNumber(item.teamPlantingAmount),
                     style: const TextStyle(
                       fontSize: 16,
@@ -394,6 +399,7 @@ class _RankingPageState extends ConsumerState<RankingPage> {
                       color: Color(0xFFD4AF37),
                     ),
                   ),
+                ),
                 const Text(
                   '团队认种量',
                   style: TextStyle(
@@ -405,6 +411,7 @@ class _RankingPageState extends ConsumerState<RankingPage> {
                 ),
               ],
             ),
+          ),
         ],
       ),
     );

frontend/mobile-app/lib/features/trading/presentation/pages/ledger_detail_page.dart

@@ -440,7 +440,11 @@ class _LedgerDetailPageState extends ConsumerState<LedgerDetailPage>
                     color: Color(0xFF5D4037),
                   ),
                 ),
-                Text(
+                Flexible(
+                  child: FittedBox(
+                    fit: BoxFit.scaleDown,
+                    alignment: Alignment.centerRight,
+                    child: Text(
                       '${(stats?.netAmount ?? 0) >= 0 ? '+' : ''}${_formatAmount(stats?.netAmount ?? 0)} 绿积分',
                       style: TextStyle(
                         fontSize: 18,
@@ -450,6 +454,8 @@ class _LedgerDetailPageState extends ConsumerState<LedgerDetailPage>
                             : const Color(0xFFE53935),
                       ),
                     ),
+                  ),
+                ),
               ],
             ),
           ),
@@ -485,7 +491,9 @@ class _LedgerDetailPageState extends ConsumerState<LedgerDetailPage>
           ],
         ),
         const SizedBox(height: 8),
-        Text(
+        FittedBox(
+          fit: BoxFit.scaleDown,
+          child: Text(
             _formatAmount(amount),
             style: TextStyle(
               fontSize: 20,
@@ -493,6 +501,7 @@ class _LedgerDetailPageState extends ConsumerState<LedgerDetailPage>
               color: color,
             ),
           ),
+        ),
         const Text(
           '绿积分',
           style: TextStyle(
@@ -662,7 +671,9 @@ class _LedgerDetailPageState extends ConsumerState<LedgerDetailPage>
           ),
         ),
         const SizedBox(height: 4),
-        Text(
+        FittedBox(
+          fit: BoxFit.scaleDown,
+          child: Text(
             _formatAmount(amount),
             style: TextStyle(
               fontSize: 12,
@@ -670,6 +681,7 @@ class _LedgerDetailPageState extends ConsumerState<LedgerDetailPage>
               color: color,
             ),
           ),
+        ),
       ],
     );
   }
@@ -760,7 +772,11 @@ class _LedgerDetailPageState extends ConsumerState<LedgerDetailPage>
               ],
             ),
           ),
-          Text(
+          Flexible(
+            child: FittedBox(
+              fit: BoxFit.scaleDown,
+              alignment: Alignment.centerRight,
+              child: Text(
                 '${isIncome ? '+' : ''}${_formatAmount(item.totalAmount)}',
                 style: TextStyle(
                   fontSize: 14,
@@ -768,6 +784,8 @@ class _LedgerDetailPageState extends ConsumerState<LedgerDetailPage>
                   color: isIncome ? const Color(0xFF4CAF50) : const Color(0xFFE53935),
                 ),
               ),
+            ),
+          ),
         ],
       ),
     );
@@ -978,10 +996,15 @@ class _LedgerDetailPageState extends ConsumerState<LedgerDetailPage>
             ),
           ),
           // 金额
-          Column(
+          ConstrainedBox(
+            constraints: const BoxConstraints(maxWidth: 120),
+            child: Column(
               crossAxisAlignment: CrossAxisAlignment.end,
               children: [
-              Text(
+                FittedBox(
+                  fit: BoxFit.scaleDown,
+                  alignment: Alignment.centerRight,
+                  child: Text(
                     '${isIncome ? '+' : ''}${_formatAmount(entry.amount)}',
                     style: TextStyle(
                       fontSize: 16,
@@ -989,18 +1012,24 @@ class _LedgerDetailPageState extends ConsumerState<LedgerDetailPage>
                       color: isIncome ? const Color(0xFF4CAF50) : const Color(0xFFE53935),
                     ),
                   ),
+                ),
                 if (entry.balanceAfter != null) ...[
                   const SizedBox(height: 4),
-                Text(
+                  FittedBox(
+                    fit: BoxFit.scaleDown,
+                    alignment: Alignment.centerRight,
+                    child: Text(
                       '余额: ${_formatAmount(entry.balanceAfter!)}',
                       style: const TextStyle(
                         fontSize: 10,
                         color: Color(0x995D4037),
                       ),
                     ),
+                  ),
                 ],
               ],
             ),
+          ),
         ],
       ),
     );

frontend/mobile-app/lib/features/trading/presentation/pages/trading_page.dart

@@ -534,7 +534,9 @@ class _TradingPageState extends ConsumerState<TradingPage> {
               valueColor: AlwaysStoppedAnimation<Color>(Color(0xFFD4AF37)),
             ),
           )
-        : Text(
+        : FittedBox(
+            fit: BoxFit.scaleDown,
+            child: Text(
               'DST 余额: ${_formatNumber(_dstBalance)}',
               style: const TextStyle(
                 fontSize: 14,
@@ -542,6 +544,7 @@ class _TradingPageState extends ConsumerState<TradingPage> {
                 height: 1.5,
                 color: Color(0x995D4037),
               ),
+            ),
           );
   }
 
@@ -616,7 +619,9 @@ class _TradingPageState extends ConsumerState<TradingPage> {
               valueColor: AlwaysStoppedAnimation<Color>(Color(0xFFD4AF37)),
             ),
           )
-        : Text(
+        : FittedBox(
+            fit: BoxFit.scaleDown,
+            child: Text(
               '绿积分 余额: ${_formatNumber(_usdtBalance)}',
               style: const TextStyle(
                 fontSize: 14,
@@ -624,6 +629,7 @@ class _TradingPageState extends ConsumerState<TradingPage> {
                 height: 1.5,
                 color: Color(0x995D4037),
               ),
+            ),
           );
   }
 }

frontend/mobile-app/lib/features/withdraw/presentation/pages/withdraw_usdt_page.dart

@@ -568,7 +568,11 @@ class _WithdrawUsdtPageState extends ConsumerState<WithdrawUsdtPage> {
           Row(
             crossAxisAlignment: CrossAxisAlignment.end,
             children: [
-              Text(
+              Flexible(
+                child: FittedBox(
+                  fit: BoxFit.scaleDown,
+                  alignment: Alignment.centerLeft,
+                  child: Text(
                     _formatNumber(_usdtBalance),
                     style: const TextStyle(
                       fontSize: 32,
@@ -578,6 +582,8 @@ class _WithdrawUsdtPageState extends ConsumerState<WithdrawUsdtPage> {
                       color: Color(0xFF5D4037),
                     ),
                   ),
+                ),
+              ),
               const SizedBox(width: 8),
               const Padding(
                 padding: EdgeInsets.only(bottom: 4),