diff --git a/pro_v3.5.1/app/services/hjf/PointsRewardServices.php b/pro_v3.5.1/app/services/hjf/PointsRewardServices.php
index 5962329d..84a6204a 100644
--- a/pro_v3.5.1/app/services/hjf/PointsRewardServices.php
+++ b/pro_v3.5.1/app/services/hjf/PointsRewardServices.php
@@ -62,28 +62,40 @@ class PointsRewardServices extends BaseServices
             if (!$buyer || !$buyer['spread_uid']) {
                 return;
             }
-            $this->propagateReward($buyer['spread_uid'], $orderUid, $orderId, 0, 0, $orderDbId, $preUpgradeLevels, $qty);
+
+            // 取买家自身的直推奖励积分作为级差下限，确保第一级父节点只拿差额
+            $buyerLevelId      = array_key_exists($orderUid, $preUpgradeLevels)
+                ? $preUpgradeLevels[$orderUid]
+                : (int)($buyer['agent_level'] ?? 0);
+            $buyerDirectReward = $this->agentLevelServices->getDirectRewardPoints($buyerLevelId);
+
+            $this->propagateReward((int)$buyer['spread_uid'], $orderUid, $orderId, $buyerDirectReward, 0, $orderDbId, $preUpgradeLevels, $qty);
         } catch (\Throwable $e) {
             Log::error("[PointsReward] 积分奖励失败 orderUid={$orderUid} orderId={$orderId}: " . $e->getMessage());
         }
     }
 
     /**
-     * 向上递归发放级差积分
+     * 向上递归发放直推积分奖励（标准逐级级差）
      *
-     * @param int    $uid              当前被奖励用户
-     * @param int    $fromUid          触发方（下级）用户 ID
-     * @param string $orderId          来源订单号
-     * @param int    $lowerReward      下级已获得的伞下奖励积分（用于级差扣减）
-     * @param int    $depth            递归深度
-     * @param array  $preUpgradeLevels 升级前各用户的 agent_level 快照 [uid => level_id]
-     * @param int    $qty              报单商品数量，积分按数量倍乘（B3）
+     * 算法：沿推荐链向上遍历，每个分销等级大于0的祖先获得
+     *   max(0, 自身 direct_reward_points - 链中已见最高 direct_reward_points) * qty
+     * 非分销员（grade=0）跳过但继续向上传递，$lowerDirectReward 不变。
+     *
+     * @param int    $uid               当前被奖励用户
+     * @param int    $fromUid           触发方（下级）用户 ID
+     * @param string $orderId           来源订单号
+     * @param int    $lowerDirectReward 链中已被下级拿走的最高 direct_reward_points（级差下限）
+     * @param int    $depth             递归深度（防止无限递归）
+     * @param int    $orderDbId         订单表主键 id
+     * @param array  $preUpgradeLevels  升级前各用户的 agent_level 快照 [uid => level_id]（B2）
+     * @param int    $qty               报单商品数量，积分按数量倍乘（B3）
      */
     private function propagateReward(
         int    $uid,
         int    $fromUid,
         string $orderId,
-        int    $lowerReward,
+        int    $lowerDirectReward,
         int    $depth = 0,
         int    $orderDbId = 0,
         array  $preUpgradeLevels = [],
@@ -105,44 +117,37 @@ class PointsRewardServices extends BaseServices
         $grade = $this->agentLevelServices->getGradeByLevelId($agentLevelId);
 
         if ($grade === 0) {
+            // 非分销员：跳过奖励，但继续向上传递，$lowerDirectReward 保持不变
             if ($user['spread_uid']) {
-                $this->propagateReward((int)$user['spread_uid'], $uid, $orderId, 0, $depth + 1, $orderDbId, $preUpgradeLevels, $qty);
+                $this->propagateReward((int)$user['spread_uid'], $uid, $orderId, $lowerDirectReward, $depth + 1, $orderDbId, $preUpgradeLevels, $qty);
             }
             return;
         }
 
-        $isDirect = ($depth === 0);
-        // fsgx B4：直推奖励和伞下奖励分别读取，级差计算只用伞下奖励做扣减
-        // 这样当中间层（如创客，umbrella=0）上报时，上级（云店，umbrella=300）
-        // 计算 max(0, 300-0)=300，而不会被直推奖励 500 错误抵消
-        $directReward   = $this->agentLevelServices->getDirectRewardPoints($agentLevelId);
-        $umbrellaReward = $this->agentLevelServices->getUmbrellaRewardPoints($agentLevelId);
+        $directReward = $this->agentLevelServices->getDirectRewardPoints($agentLevelId);
 
-        if ($isDirect) {
-            // fsgx B3：直推奖励按报单商品数量倍乘
-            $actual = $directReward * $qty;
-        } else {
-            // 级差：基于单件奖励做差值，再乘以数量
-            $actual = max(0, $umbrellaReward - $lowerReward) * $qty;
-        }
+        // 级差：本节点只拿超出下级已取走部分的差额，再乘以数量
+        $actual = max(0, $directReward - $lowerDirectReward) * $qty;
 
         if ($actual > 0) {
             $this->grantFrozenPoints(
                 $uid,
                 $actual,
                 $orderId,
-                $isDirect ? 'reward_direct' : 'reward_umbrella',
-                ($isDirect ? '直推奖励' : '伞下奖励(级差)') . " x{$qty} - 来源订单 {$orderId}",
+                'reward_direct',
+                '直推奖励(级差)' . " x{$qty} - 来源订单 {$orderId}",
                 $orderDbId
             );
         }
 
+        // 向上传递时，下限取当前节点与已有下限中的较大值，确保上级只拿增量
+        $nextLower = max($directReward, $lowerDirectReward);
         if ($user['spread_uid']) {
             $this->propagateReward(
                 (int)$user['spread_uid'],
                 $uid,
                 $orderId,
-                $umbrellaReward,  // 向上传单件伞下奖励（级差基数），让上级自行乘以 $qty
+                $nextLower,
                 $depth + 1,
                 $orderDbId,
                 $preUpgradeLevels,