diff --git a/app/Http/Controllers/Business/Pages.php b/app/Http/Controllers/Business/Pages.php
index 1e9c1f6a..9f3b9f61 100644
--- a/app/Http/Controllers/Business/Pages.php
+++ b/app/Http/Controllers/Business/Pages.php
@@ -301,9 +301,12 @@ class Pages extends Controller
             . " WHERE b.order_no = store_receipt_order_match_rows.online_order_no AND b.bill_item LIKE '价保扣款%'), 0)";
         $rules['订单实付未减退款'] = "platform = '京东账单' AND " . $effective . ' < -0.005'
             . ' AND ABS(ROUND(ABS(' . $effective . ') - ' . $jiabaoRefund . ', 2)) <= 0.02';
-        $rules[$label . '未减冲减'] = "match_status = '已匹配' AND ABS(COALESCE($column, 0) - (COALESCE(income_amount, 0) + COALESCE(discount_amount, 0))) < 0.005";
-        $rules[$label . '未减优惠'] = "match_status = '已匹配' AND ABS(COALESCE($column, 0) - (COALESCE(income_amount, 0) + COALESCE(offset_amount, 0))) < 0.005";
-        $rules[$label . '未减优惠和冲减'] = "match_status = '已匹配' AND ABS(COALESCE($column, 0) - COALESCE(income_amount, 0)) < 0.005";
+        // C 方案：这三条是"通用等式档"——口径（卖家实收 / 应付已付）能对上账单的行让位给口径兜底
+        // （归零 + 口径标识），只有口径也对不上时才显示这三档，避免把口径差标成一堆"未减优惠/冲减"。
+        $notBasisMarked = "COALESCE(remark, '') NOT IN ('订单实付按卖家实收核对', '订单实付按应付/已付核对')";
+        $rules[$label . '未减冲减'] = "match_status = '已匹配' AND ABS(COALESCE($column, 0) - (COALESCE(income_amount, 0) + COALESCE(discount_amount, 0))) < 0.005 AND " . $notBasisMarked;
+        $rules[$label . '未减优惠'] = "match_status = '已匹配' AND ABS(COALESCE($column, 0) - (COALESCE(income_amount, 0) + COALESCE(offset_amount, 0))) < 0.005 AND " . $notBasisMarked;
+        $rules[$label . '未减优惠和冲减'] = "match_status = '已匹配' AND ABS(COALESCE($column, 0) - COALESCE(income_amount, 0)) < 0.005 AND " . $notBasisMarked;
 
         // 抖音「订单实付含已退款部分」：负差额能在聚水潭退款单/取消子单金额里对上
         // （≈差额，或放宽口径 ≈实付−收入＝差额+优惠+冲减）才标注。
@@ -335,7 +338,7 @@ class Pages extends Controller
         }
 
         // 兜底档：有差额但没命中任何原因 →「差额待核实」（与页面渲染的兜底备注保持一致）。
-        $conditions['差额待核实'] = 'ABS(' . $effective . ') > 0.005 AND NOT (' . implode(' OR ', $seen) . ')';
+        $conditions['差额待核实'] = 'ABS(' . $effective . ') > 0.005 AND NOT (' . implode(' OR ', $seen) . ') AND ' . $notBasisMarked;
 
         return $conditions;
     }
@@ -486,13 +489,19 @@ class Pages extends Controller
                 return '订单实付未减退款';
             }
         }
-        if (abs($product - ($income + $discount)) < 0.005) {
+        // C 方案：口径标识行让位给口径兜底，这三条通用等式档只对"口径也对不上"的行生效。
+        $basisMarked = in_array(
+            trim((string) ($row->remark ?? '')),
+            ['订单实付按卖家实收核对', '订单实付按应付/已付核对'],
+            true
+        );
+        if (! $basisMarked && abs($product - ($income + $discount)) < 0.005) {
             return $label . '未减冲减';
         }
-        if (abs($product - ($income + $offset)) < 0.005) {
+        if (! $basisMarked && abs($product - ($income + $offset)) < 0.005) {
             return $label . '未减优惠';
         }
-        if (abs($product - $income) < 0.005) {
+        if (! $basisMarked && abs($product - $income) < 0.005) {
             return $label . '未减优惠和冲减';
         }