diff --git a/developer_apps.php b/developer_apps.php
index 679ce33..a500e0c 100644
--- a/developer_apps.php
+++ b/developer_apps.php
@@ -119,6 +119,7 @@ $resultApps = $conn->query($sqlApps);
                                     </small>
                                 </p>
                                 <a href="app.php?id=<?php echo $app['id']; ?>" class="btn btn-primary">查看详情</a>
+                                <button class="btn btn-outline-secondary mt-2" onclick="toggleFavorite(<?php echo $app['id']; ?>, '<?php echo addslashes(htmlspecialchars($app['name'])); ?>')">收藏</button>
                             </div>
                         </div>
                     </div>
diff --git a/index.php b/index.php
index a0ccfd7..d029bf9 100644
--- a/index.php
+++ b/index.php
@@ -120,7 +120,7 @@ if (!isset($conn) || !$conn instanceof mysqli) {
                 </div>
                 </div>
                 <div class="col-md-2">
-                    <button class="btn btn-primary w-100" type="submit">搜索</button>
+                    <button class="btn btn-primary w-100" style="width: calc(3.5rem + calc(var(--bs-border-width) * 2)); height: calc(3.5rem + calc(var(--bs-border-width) * 2))" type="submit">搜索</button>
                 </div>
             </div>
         </form>
@@ -201,6 +201,7 @@ if (!isset($conn) || !$conn instanceof mysqli) {
                     echo '<p class="card-text">'. substr(htmlspecialchars($row['description']), 0, 100) . '...</p>';
                     echo '<p class="card-text">评分: '. round($row['avg_rating'] ?? 0, 1) . '/5</p>';
                     echo '<a href="app.php?id='. $row['id'] . '" class="btn btn-primary">查看详情</a>';
+                    echo '<button class="btn btn-outline-secondary mt-2" onclick="toggleFavorite('. $row['id'] . ', \''. htmlspecialchars($row['name']) . '\')">收藏</button>';
                     echo '</div></div></div>';
                 }
             } else {
diff --git a/tags.php b/tags.php
index 78726f0..2b135f4 100644
--- a/tags.php
+++ b/tags.php
@@ -129,7 +129,7 @@ $tagResult = $conn->query("SELECT id, name FROM tags ORDER BY name");
                     </div>
                 </div>
                 <div class="col-md-2">
-                    <button class="btn btn-primary w-100" type="submit">搜索</button>
+                    <button class="btn btn-primary w-100" style="width: calc(3.5rem + calc(var(--bs-border-width) * 2)); height: calc(3.5rem + calc(var(--bs-border-width) * 2))" type="submit">搜索</button>
                 </div>
             </div>
         </form>
diff --git a/version_list.php b/version_list.php
index 3096d04..45b746b 100644
--- a/version_list.php
+++ b/version_list.php
@@ -121,6 +121,7 @@ while ($row = $result->fetch_assoc()) {
                                 <h5 class="card-title">版本 <?php echo htmlspecialchars($version['version']); ?></h5>
                                 <h6 class="card-subtitle mb-2 text-muted">发布日期: <?php echo date('Y-m-d', strtotime($version['created_at'])); ?></h6>
                                 <p class="card-text"><?php echo nl2br(htmlspecialchars($version['changelog'])); ?></p>
+                                <button class="btn btn-outline-secondary mt-2" onclick="toggleFavorite(<?php echo $appId; ?>, '<?php echo addslashes(htmlspecialchars($app['name'])); ?>')">收藏</button>
                             </div>
                             <div class="card-footer bg-transparent d-flex justify-content-between align-items-center">                                <a href="<?php echo htmlspecialchars($version['file_path']); ?>" class="btn btn-primary" download>下载</a>                                <small class="text-muted">文件大小: <?php echo $fileSize; ?></small>                            </div>
                         </div>
@@ -130,6 +131,23 @@ while ($row = $result->fetch_assoc()) {
         <?php endif; ?>
     </div>
 
+    <!-- 收藏功能逻辑 -->
+    <script>
+        function toggleFavorite(appId, appName) {
+            let favorites = JSON.parse(localStorage.getItem('appFavorites')) || {};
+            
+            if (favorites[appId]) {
+                delete favorites[appId];
+                alert('已取消收藏 ' + appName);
+            } else {
+                favorites[appId] = appName;
+                alert('已收藏 ' + appName);
+            }
+            
+            localStorage.setItem('appFavorites', JSON.stringify(favorites));
+        }
+    </script>
+    
     <!-- Bootstrap JS Bundle with Popper -->
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
     <script>