diff --git a/app/Services/MarriageService.php b/app/Services/MarriageService.php
index 0761e70..106580d 100644
--- a/app/Services/MarriageService.php
+++ b/app/Services/MarriageService.php
@@ -47,6 +47,16 @@ class MarriageService
             return ['ok' => false, 'message' => '不能向自己求婚！', 'marriage_id' => null];
         }
 
+        // 只允许异性之间求婚
+        $validSexes = ['男', '女'];
+        if (
+            ! in_array($proposer->sex, $validSexes, true) ||
+            ! in_array($target->sex, $validSexes, true) ||
+            $proposer->sex === $target->sex
+        ) {
+            return ['ok' => false, 'message' => '只有男女双方才能互相求婚，请确认双方性别设置。', 'marriage_id' => null];
+        }
+
         // 检查求婚方是否在冷静期
         if ($cooldownMsg = $this->checkCooldown($proposer)) {
             return ['ok' => false, 'message' => $cooldownMsg, 'marriage_id' => null];
diff --git a/resources/views/chat/frame.blade.php b/resources/views/chat/frame.blade.php
index a7bf4cd..9c79676 100644
--- a/resources/views/chat/frame.blade.php
+++ b/resources/views/chat/frame.blade.php
@@ -31,6 +31,7 @@
             roomId: {{ $room->id }},
             userId: {{ $user->id }},
             username: "{{ $user->username }}",
+            userSex: "{{ $user->sex }}",
             userLevel: {{ $user->user_level }},
             superLevel: {{ $superLevel }},
             levelKick: {{ $levelKick }},
diff --git a/resources/views/chat/partials/user-actions.blade.php b/resources/views/chat/partials/user-actions.blade.php
index c714443..6bd38be 100644
--- a/resources/views/chat/partials/user-actions.blade.php
+++ b/resources/views/chat/partials/user-actions.blade.php
@@ -709,8 +709,13 @@
                         🪙 送金币
                     </button>
 
-                    {{-- 求婚按钮（对方未婚 且 我也未婚时显示） --}}
-                    <button x-show="!marriageLoading && (!targetMarriage || targetMarriage.status === 'none')"
+                    {{-- 求婚按钮：对方未婚 + 双方均已设置性别 + 异性 --}}
+                    <button
+                        x-show="!marriageLoading
+                            && (!targetMarriage || targetMarriage.status === 'none')
+                            && userInfo.sex
+                            && window.chatContext.userSex
+                            && userInfo.sex !== window.chatContext.userSex"
                         style="flex:1; padding: 7px 10px; border-radius: 5px; font-size: 12px; font-weight: bold; cursor: pointer;
                                background: linear-gradient(135deg,#f43f5e,#ec4899); color:#fff; border:none;"
                         x-on:click="showUserModal = false; openProposeModal(userInfo.username)">