diff --git a/server/app/api/controller/CommunityController.php b/server/app/api/controller/CommunityController.php
index 9816f40..124af7c 100644
--- a/server/app/api/controller/CommunityController.php
+++ b/server/app/api/controller/CommunityController.php
@@ -15,6 +15,7 @@ use app\common\logic\AccountLogLogic;
 use app\common\service\ai\AiService;
 use app\common\service\ai\KbSyncService;
 use app\common\service\chat\PrivateChatService;
+use app\common\service\FileService;
 use app\common\service\VipService;
 use think\facade\Db;
 
@@ -703,9 +704,169 @@ class CommunityController extends BaseApiController
         return in_array($lotteryKey, ['a6', 'xa6'], true);
     }
 
+    private function localizeLiuhePostImagesForAi(CommunityPost $post, array $images): array
+    {
+        $localizedImages = [];
+        $changed = false;
+
+        foreach ($images as $image) {
+            $image = trim((string) $image);
+            if ($image === '') {
+                continue;
+            }
+
+            if ($this->isLocalUploadImage($image)) {
+                $localUrl = $this->normalizeLocalUploadImageUrl($image);
+                $localizedImages[] = $localUrl;
+                $changed = $changed || $localUrl !== $image;
+                continue;
+            }
+
+            if (!preg_match('/^https?:\/\//i', $image)) {
+                $localUrl = FileService::getFileUrl(ltrim($image, '/'));
+                $localizedImages[] = $localUrl;
+                $changed = $changed || $localUrl !== $image;
+                continue;
+            }
+
+            $localUrl = $this->saveRemoteImageForAiAnalysis($image);
+            if ($localUrl === '') {
+                return [
+                    'success' => false,
+                    'error' => '图片下载到本地失败，请稍后重试',
+                    'images' => [],
+                ];
+            }
+
+            $localizedImages[] = $localUrl;
+            $changed = true;
+        }
+
+        if (empty($localizedImages)) {
+            return ['success' => false, 'error' => '帖子图片为空，无法分析', 'images' => []];
+        }
+
+        if ($changed || $localizedImages !== array_values($images)) {
+            $now = time();
+            Db::name('community_post')->where('id', (int) $post->id)->update([
+                'images' => json_encode($localizedImages, JSON_UNESCAPED_UNICODE),
+                'update_time' => $now,
+            ]);
+
+            Db::name('community_post_image')->where('post_id', (int) $post->id)->delete();
+            foreach ($localizedImages as $index => $imageUrl) {
+                Db::name('community_post_image')->insert([
+                    'post_id' => (int) $post->id,
+                    'image_url' => $imageUrl,
+                    'sort' => $index,
+                    'create_time' => $now,
+                ]);
+            }
+        }
+
+        return ['success' => true, 'images' => $localizedImages, 'changed' => $changed];
+    }
+
+    private function isLocalUploadImage(string $image): bool
+    {
+        if (!preg_match('/^https?:\/\//i', $image)) {
+            return str_starts_with(ltrim($image, '/'), 'uploads/');
+        }
+
+        $path = (string) (parse_url($image, PHP_URL_PATH) ?: '');
+        if (!str_starts_with($path, '/uploads/')) {
+            return false;
+        }
+
+        $imageHost = strtolower((string) (parse_url($image, PHP_URL_HOST) ?: ''));
+        $currentHost = strtolower((string) (parse_url(request()->domain(), PHP_URL_HOST) ?: ''));
+        return $imageHost !== '' && $currentHost !== '' && $imageHost === $currentHost;
+    }
+
+    private function normalizeLocalUploadImageUrl(string $image): string
+    {
+        if (preg_match('/^https?:\/\//i', $image)) {
+            return $image;
+        }
+
+        return FileService::getFileUrl(ltrim($image, '/'));
+    }
+
+    private function saveRemoteImageForAiAnalysis(string $imageUrl): string
+    {
+        $ch = curl_init($imageUrl);
+        curl_setopt_array($ch, [
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_FOLLOWLOCATION => true,
+            CURLOPT_CONNECTTIMEOUT => 10,
+            CURLOPT_TIMEOUT => 25,
+            CURLOPT_SSL_VERIFYPEER => false,
+            CURLOPT_USERAGENT => 'Mozilla/5.0 SportEraBot/1.0',
+        ]);
+
+        $body = curl_exec($ch);
+        $httpCode = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        $contentType = (string) curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
+        curl_close($ch);
+
+        if ($httpCode !== 200 || !is_string($body) || $body === '' || strlen($body) > 8 * 1024 * 1024) {
+            return '';
+        }
+
+        $mime = strtolower(trim(explode(';', $contentType)[0] ?? ''));
+        $imageInfo = @getimagesizefromstring($body);
+        if (is_array($imageInfo) && !empty($imageInfo['mime'])) {
+            $mime = strtolower((string) $imageInfo['mime']);
+        }
+
+        $extension = match ($mime) {
+            'image/jpeg', 'image/jpg' => 'jpg',
+            'image/png' => 'png',
+            'image/webp' => 'webp',
+            'image/gif' => 'gif',
+            default => '',
+        };
+
+        if ($extension === '') {
+            $path = parse_url($imageUrl, PHP_URL_PATH) ?: '';
+            $extension = strtolower(pathinfo($path, PATHINFO_EXTENSION));
+            if (!in_array($extension, ['jpg', 'jpeg', 'png', 'webp', 'gif'], true)) {
+                return '';
+            }
+            $extension = $extension === 'jpeg' ? 'jpg' : $extension;
+        }
+
+        $relativeDir = 'uploads/ai_lottery_posts/' . date('Ymd');
+        $publicRoot = rtrim(public_path(), DIRECTORY_SEPARATOR . '/');
+        $targetDir = $publicRoot . DIRECTORY_SEPARATOR . str_replace('/', DIRECTORY_SEPARATOR, $relativeDir);
+        if (!is_dir($targetDir) && !mkdir($targetDir, 0755, true) && !is_dir($targetDir)) {
+            return '';
+        }
+
+        $filename = sha1($imageUrl . "\n" . $body) . '.' . $extension;
+        $relativeUri = $relativeDir . '/' . $filename;
+        $targetPath = $targetDir . DIRECTORY_SEPARATOR . $filename;
+
+        if (!is_file($targetPath) && file_put_contents($targetPath, $body) === false) {
+            return '';
+        }
+
+        return FileService::getFileUrl($relativeUri);
+    }
+
     private function ensureLiuheAnalysisContent(CommunityPost $post, array $ext): array
     {
         $images = is_array($post->images) ? array_values($post->images) : [];
+        $originalImageHash = md5(json_encode($images, JSON_UNESCAPED_UNICODE));
+        $localizeResult = $this->localizeLiuhePostImagesForAi($post, $images);
+        if (empty($localizeResult['success'])) {
+            return [
+                'success' => false,
+                'error' => (string) ($localizeResult['error'] ?? '图片下载到本地失败'),
+            ];
+        }
+
+        $images = array_values($localizeResult['images']);
         $imageHash = md5(json_encode($images, JSON_UNESCAPED_UNICODE));
         $cacheSource = (string) ($ext['lottery_analysis_source'] ?? '');
         $cacheHash = (string) ($ext['lottery_analysis_images_hash'] ?? '');
@@ -713,8 +874,16 @@ class CommunityController extends BaseApiController
         if (
             !empty($ext['lottery_analysis_content'])
             && $cacheSource === 'image_only'
-            && $cacheHash === $imageHash
+            && in_array($cacheHash, [$imageHash, $originalImageHash], true)
         ) {
+            if ($cacheHash !== $imageHash) {
+                $ext['lottery_analysis_images_hash'] = $imageHash;
+                CommunityPost::where('id', (int) $post->id)->update([
+                    'ext' => json_encode($ext, JSON_UNESCAPED_UNICODE),
+                    'update_time' => time(),
+                ]);
+                KbSyncService::enqueue('post', 'post', (int) $post->id, 'upsert', 45);
+            }
             return ['success' => true, 'ext' => $ext, 'from_cache' => true];
         }
 
diff --git a/server/app/common/service/ai/AiService.php b/server/app/common/service/ai/AiService.php
index e95952d..9810139 100644
--- a/server/app/common/service/ai/AiService.php
+++ b/server/app/common/service/ai/AiService.php
@@ -11,6 +11,7 @@ use app\common\service\MTranServerService;
 
 class AiService
 {
+    private const LOTTERY_POST_IMAGE_TIMEOUT = 25;
 
 
     // 生成类 AI 统一走 DeepSeekClient 的 OpenAI Responses 配置。
@@ -341,7 +342,7 @@ class AiService
             if (!$image) {
                 return '';
             }
-            return self::prepareGptImageUrl(FileService::getFileUrl($image));
+            return FileService::getFileUrl($image);
         }, $images)));
 
         if (empty($imageUrls)) {
@@ -366,6 +367,10 @@ class AiService
         $options = self::gptModelOptions([
             'max_tokens' => 2000,
             'temperature' => 0.3,
+            'timeout' => self::LOTTERY_POST_IMAGE_TIMEOUT,
+            'reasoning_effort' => 'low',
+            'retry_times' => 0,
+            'retry_sleep_ms' => 0,
         ]);
 
         $client = new DeepSeekClient();
@@ -380,52 +385,6 @@ class AiService
         return $result;
     }
 
-    protected static function prepareGptImageUrl(string $imageUrl): string
-    {
-        if (!preg_match('/^https?:\/\//i', $imageUrl)) {
-            return $imageUrl;
-        }
-
-        $dataUrl = self::downloadImageAsDataUrl($imageUrl);
-        return $dataUrl !== '' ? $dataUrl : $imageUrl;
-    }
-
-    protected static function downloadImageAsDataUrl(string $imageUrl): string
-    {
-        $ch = curl_init($imageUrl);
-        curl_setopt_array($ch, [
-            CURLOPT_RETURNTRANSFER => true,
-            CURLOPT_FOLLOWLOCATION => true,
-            CURLOPT_CONNECTTIMEOUT => 10,
-            CURLOPT_TIMEOUT => 25,
-            CURLOPT_SSL_VERIFYPEER => false,
-            CURLOPT_USERAGENT => 'Mozilla/5.0 SportEraBot/1.0',
-        ]);
-
-        $body = curl_exec($ch);
-        $httpCode = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
-        $contentType = (string) curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
-        curl_close($ch);
-
-        if ($httpCode !== 200 || !is_string($body) || $body === '' || strlen($body) > 8 * 1024 * 1024) {
-            return '';
-        }
-
-        $mime = strtolower(trim(explode(';', $contentType)[0] ?? ''));
-        if ($mime === '' || !str_starts_with($mime, 'image/')) {
-            $path = parse_url($imageUrl, PHP_URL_PATH) ?: '';
-            $ext = strtolower(pathinfo($path, PATHINFO_EXTENSION));
-            $mime = match ($ext) {
-                'png' => 'image/png',
-                'webp' => 'image/webp',
-                'gif' => 'image/gif',
-                default => 'image/jpeg',
-            };
-        }
-
-        return 'data:' . $mime . ';base64,' . base64_encode($body);
-    }
-
     /**
      * 保存分析结果
      */
diff --git a/server/app/common/service/ai/KbRagService.php b/server/app/common/service/ai/KbRagService.php
index dd2bde8..aee13dd 100644
--- a/server/app/common/service/ai/KbRagService.php
+++ b/server/app/common/service/ai/KbRagService.php
@@ -6,6 +6,8 @@ use app\common\model\ai\AiConfig;
 
 class KbRagService
 {
+    private const LOTTERY_POST_ANALYSIS_TIMEOUT = 25;
+
     public static function analyzeMatch(int $matchId, array $matchData, int $userId = 0): array
     {
         $retrieval = self::retrieveMatchEvidence($matchId, $matchData, $userId, 'match_analysis');
@@ -212,6 +214,10 @@ class KbRagService
         return DeepSeekClient::defaultModelOptions([
             'max_tokens' => 1200,
             'temperature' => 0.35,
+            'timeout' => self::LOTTERY_POST_ANALYSIS_TIMEOUT,
+            'reasoning_effort' => 'low',
+            'retry_times' => 0,
+            'retry_sleep_ms' => 0,
         ]);
     }