feat: 更新后台管理界面，优化表格和按钮样式

- 改进表格布局，支持横向滚动和长文本自动换行
- 设置合理的列宽，确保信息完整显示
- 添加应用图标、下载链接、官网链接和应用描述字段
- 优化按钮布局和样式，提升用户体验
- 更新README.md，记录此次更新日志

README.md

@@ -249,6 +249,20 @@ A: 检查CDN资源是否正常加载，可考虑本地化CSS/JS文件。
 
 本项目采用 MIT 协议开源，详见 [LICENSE](LICENSE) 文件。
 
+## 📝 更新日志
+
+### 2025-07-09
+- ✨ 优化后台管理界面显示
+  - 改进表格布局，添加横向滚动支持
+  - 优化长文本内容显示
+  - 设置合理的列宽
+    - 普通列：最小宽度100px
+    - URL列：最小宽度200px，最大宽度300px
+    - 描述列：最小宽度300px，最大宽度500px
+  - 支持描述文本自动换行
+  - 完整显示URL链接
+  - 优化按钮布局和样式
+
 ## 🙏 致谢
 
 - 感谢所有为开源社区做出贡献的开发者

admin/index.php

@@ -305,12 +305,14 @@ $total_pages = ceil($total / $limit);
             background: white;
             border-radius: 12px;
             box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
-            overflow: hidden;
+            overflow-x: auto;
+            width: 100%;
         }
         
         .table {
             width: 100%;
             border-collapse: collapse;
+            white-space: nowrap;
         }
         
         .table th,
@@ -318,12 +320,18 @@ $total_pages = ceil($total / $limit);
             padding: 15px;
             text-align: left;
             border-bottom: 1px solid #e2e8f0;
+            min-width: 100px;
         }
         
         .table th {
             background: #f8fafc;
             font-weight: 600;
             color: #374151;
+            white-space: nowrap;
+        }
+        
+        .table td {
+            font-size: 14px;
         }
         
         .table tr:hover {
@@ -355,22 +363,38 @@ $total_pages = ceil($total / $limit);
         .action-buttons {
             display: flex;
             gap: 5px;
+            white-space: nowrap;
         }
         
         .btn-sm {
             padding: 4px 8px;
             font-size: 12px;
+            display: inline-flex;
+            align-items: center;
+            gap: 4px;
         }
-        
+
+        .btn-sm i {
+            font-size: 12px;
+        }
+
         .btn-success {
             background: #10b981;
             color: white;
         }
-        
+
-        .btn-warning {
+        .btn-success:hover {
-            background: #f59e0b;
+            background: #059669;
+        }
+
+        .btn-danger {
+            background: #ef4444;
             color: white;
         }
+
+        .btn-danger:hover {
+            background: #dc2626;
+        }
         
         .pagination {
             display: flex;
@@ -485,6 +509,63 @@ $total_pages = ceil($total / $limit);
             display: none;
         }
         
+        .app-icon {
+            width: 40px;
+            height: 40px;
+            border-radius: 8px;
+            object-fit: cover;
+            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+            transition: transform 0.2s;
+        }
+
+        .app-icon:hover {
+            transform: scale(1.1);
+        }
+
+        .truncate {
+            max-width: 250px;
+            white-space: nowrap;
+            overflow: hidden;
+            text-overflow: ellipsis;
+            display: inline-block;
+            cursor: help;
+        }
+
+        .description-cell {
+            min-width: 300px;
+            max-width: 500px;
+        }
+
+        .description-content {
+            white-space: normal;
+            word-break: break-word;
+        }
+
+        .url-cell {
+            min-width: 200px;
+            max-width: 300px;
+        }
+
+        .url-link {
+            color: #3b82f6;
+            text-decoration: none;
+        }
+
+        .url-link:hover {
+            color: #2563eb;
+            text-decoration: underline;
+        }
+
+        .platform-badge {
+            display: inline-block;
+            padding: 4px 8px;
+            border-radius: 4px;
+            background: #e5e7eb;
+            color: #374151;
+            font-size: 12px;
+            margin: 2px;
+        }
+        
         @media (max-width: 768px) {
             .header-content {
                 flex-direction: column;
@@ -611,6 +692,10 @@ $total_pages = ceil($total / $limit);
                             <th>应用名称</th>
                             <th>平台</th>
                             <th>版本</th>
+                            <th>图标</th>
+                            <th>下载链接</th>
+                            <th>官网/落地页</th>
+                            <th>应用描述</th>
                         <?php endif; ?>
                         <th>收录平台</th>
                         <th>联系方式</th>
@@ -634,6 +719,42 @@ $total_pages = ceil($total / $limit);
                                 <td><?php echo htmlspecialchars($submission['name']); ?></td>
                                 <td><?php echo htmlspecialchars($submission['platform']); ?></td>
                                 <td><?php echo htmlspecialchars($submission['version'] ?: '-'); ?></td>
+                                <td>
+                                    <?php if ($submission['icon_url']): ?>
+                                        <a href="<?php echo htmlspecialchars($submission['icon_url']); ?>" target="_blank">
+                                            <img src="<?php echo htmlspecialchars($submission['icon_url']); ?>" alt="图标" class="app-icon">
+                                        </a>
+                                    <?php else: ?>
+                                        <span class="platform-badge">无图标</span>
+                                    <?php endif; ?>
+                                </td>
+                                <td class="url-cell">
+                                    <?php if ($submission['download_url']): ?>
+                                        <a href="<?php echo htmlspecialchars($submission['download_url']); ?>" target="_blank" class="url-link">
+                                            <?php echo htmlspecialchars($submission['download_url']); ?>
+                                        </a>
+                                    <?php else: ?>
+                                        <span class="platform-badge">无下载链接</span>
+                                    <?php endif; ?>
+                                </td>
+                                <td class="url-cell">
+                                    <?php if ($submission['website_url']): ?>
+                                        <a href="<?php echo htmlspecialchars($submission['website_url']); ?>" target="_blank" class="url-link">
+                                            <?php echo htmlspecialchars($submission['website_url']); ?>
+                                        </a>
+                                    <?php else: ?>
+                                        <span class="platform-badge">无官网</span>
+                                    <?php endif; ?>
+                                </td>
+                                <td class="description-cell">
+                                    <?php if ($submission['description']): ?>
+                                        <div class="description-content">
+                                            <?php echo nl2br(htmlspecialchars($submission['description'])); ?>
+                                        </div>
+                                    <?php else: ?>
+                                        <span class="platform-badge">无描述</span>
+                                    <?php endif; ?>
+                                </td>
                             <?php endif; ?>
                             <td><?php echo htmlspecialchars($submission['platforms'] ?: '-'); ?></td>
                             <td><?php echo htmlspecialchars($submission['contact'] ?: '-'); ?></td>
@@ -654,16 +775,16 @@ $total_pages = ceil($total / $limit);
                                 <div class="action-buttons">
                                     <button class="btn btn-sm btn-primary" 
                                             onclick="showStatusModal(<?php echo $submission['id']; ?>, '<?php echo $type; ?>', '<?php echo $submission['status']; ?>', '<?php echo htmlspecialchars($submission['admin_note'] ?? '', ENT_QUOTES); ?>')">
-                                        <i class="fas fa-edit"></i>
+                                        <i class="fas fa-edit"></i> 编辑
                                     </button>
                                     <?php if ($submission['status'] === 'pending'): ?>
                                         <button class="btn btn-sm btn-success" 
                                                 onclick="quickUpdate(<?php echo $submission['id']; ?>, '<?php echo $type; ?>', 'approved')">
-                                            <i class="fas fa-check"></i>
+                                            <i class="fas fa-check"></i> 通过
                                         </button>
                                         <button class="btn btn-sm btn-danger" 
                                                 onclick="quickUpdate(<?php echo $submission['id']; ?>, '<?php echo $type; ?>', 'rejected')">
-                                            <i class="fas fa-times"></i>
+                                            <i class="fas fa-times"></i> 拒绝
                                         </button>
                                     <?php endif; ?>
                                 </div>