diff --git a/application/common/QueueJob.php b/application/common/QueueJob.php
index a334a27..87462de 100644
--- a/application/common/QueueJob.php
+++ b/application/common/QueueJob.php
@@ -212,39 +212,55 @@ class QueueJob
      */
     public function acquireLock($sRedisKey, $sRedisValue, $job)
     {
-        $isLocked = $this->QueueRedis->startJob($sRedisKey, $sRedisValue, $this->lockExpire);
-        
-        if (!$isLocked) {
-            $currentLockValue = $this->QueueRedis->getRedisValue($sRedisKey); // 获取当前锁值
-            $jobStatus = $this->QueueRedis->getJobStatus($sRedisKey);
-            
-            // 若锁值为空或过期，强制抢占锁
-            if (empty($currentLockValue) || $jobStatus === false) {
-                $this->log("数据为空 | 状态: {$currentLockValue} | 键: {$jobStatus}");
-                $isLocked = $this->QueueRedis->startJob($sRedisKey, $sRedisValue, $this->lockExpire);
-                if ($isLocked) return true;
-            }
-            if (in_array($jobStatus, ['completed', 'failed'])) {
-                $this->log("任务已完成或失败，删除任务 | 状态: {$jobStatus} | 键: {$sRedisKey}");
-                $job->delete();
-            } else {
-                $attempts = $job->attempts();
-                if ($attempts >= $this->maxRetries) {
-                    $this->log("超过最大重试次数({$this->maxRetries})，停止重试 | 键: {$sRedisKey}");
-                    $job->delete();
-                } else {
-                    $lockTtl = $this->QueueRedis->getLockTtl($sRedisKey);
-                    $delay = $lockTtl > 0 ? $lockTtl + 5 : 30;
-                    // 限制最大延迟时间
-                    $delay = min($delay, $this->maxDelay);
-                    $this->log("锁竞争，{$delay}秒后重试({$attempts}/{$this->maxRetries}) | 键: {$sRedisKey}");
-                    $job->release($delay);
-                }
-            }
+        // 1. 前置校验：先检查是否已完成/失败（优先于锁操作）
+        $jobStatus = $this->QueueRedis->getJobStatus($sRedisKey);
+        if (in_array($jobStatus, ['completed', 'failed'])) {
+            $this->log("任务已终止，删除任务 | 键: {$sRedisKey} | 状态: {$jobStatus}");
+            $job->delete();
             return false;
         }
-        $this->log("写入成功 | 状态: {$sRedisKey} | 键: {$sRedisValue}");
-        return true;
+
+        // 2. 尝试获取锁
+        $isLocked = $this->QueueRedis->startJob($sRedisKey, $sRedisValue, $this->lockExpire);
+        if ($isLocked) {
+            $this->log("成功获取锁 | 键: {$sRedisKey} | 锁值: {$sRedisValue}");
+            return true;
+        }
+
+        // 3. 锁竞争处理：二次校验状态+超时抢占
+        $currentLockValue = $this->QueueRedis->getRedisValue($sRedisKey);
+        $jobStatus = $this->QueueRedis->getJobStatus($sRedisKey);
+
+        // 3.1 若状态已终止，直接删除任务
+        if (in_array($jobStatus, ['completed', 'failed'])) {
+            $this->log("任务已终止，删除任务 | 键: {$sRedisKey} | 状态: {$jobStatus}");
+            $job->delete();
+            return false;
+        }
+
+        // 3.2 锁已过期（值为空或TTL<=0），强制抢占
+        $lockTtl = $this->QueueRedis->getLockTtl($sRedisKey);
+        if (empty($currentLockValue) || $lockTtl <= 0) {
+            $this->log("锁已过期，强制抢占 | 键: {$sRedisKey} | TTL: {$lockTtl}");
+            $isLocked = $this->QueueRedis->startJob($sRedisKey, $sRedisValue, $this->lockExpire);
+            if ($isLocked) {
+                return true;
+            }
+        }
+
+        // 3.3 未获取到锁，按重试策略处理
+        $attempts = $job->attempts();
+        if ($attempts >= $this->maxRetries) {
+            $this->log("超过最大重试次数({$this->maxRetries})，删除任务 | 键: {$sRedisKey}");
+            $job->delete();
+        } else {
+            // 动态计算延迟时间（基于当前锁剩余时间）
+            $delay = $lockTtl > 0 ? $lockTtl + 5 : 30;
+            $delay = min($delay, $this->maxDelay);
+            $this->log("锁竞争，延迟{$delay}秒重试({$attempts}/{$this->maxRetries}) | 键: {$sRedisKey}");
+            $job->release($delay);
+        }
+        return false;
     }
 
     /**