diff --git a/.vala_skill_hashes b/.vala_skill_hashes
index afc6842..cd8318e 100644
--- a/.vala_skill_hashes
+++ b/.vala_skill_hashes
@@ -12,4 +12,4 @@ vala-component-practice-stat 8e768e2641019d27bd41f4647d2d90f24182a0554dad5ad9f41
 cron-schedule e103cbb1806b28c891b9c856963325086ecaff32edec208f0a841865f26e8f3e
 refund-user-learning-analysis 648fd4ae2b29167fd66eab4245bdaaef00242db3131f4919cc02f07ca2a9b59c
 phone-chapter-query ac429b4da5a89db16efdf1066edf4ecb1c050b93aff20dd4c652af5f5568e44f
-vala-order-amortization-stat 9363fb9e3b3f001493b1a191df283ee287526ed4ed8cd1748f300fb332425c83
+vala-order-amortization-stat de5f77b9e4ab865df5efe595e59e877257ac489a195fb969b9d20d1a71158b97
diff --git a/memory/2026-04-28-0306.md b/memory/2026-04-28-0306.md
new file mode 100644
index 0000000..025d0e5
--- /dev/null
+++ b/memory/2026-04-28-0306.md
@@ -0,0 +1,5 @@
+# Session: 2026-04-28 03:06:34 UTC
+
+- **Session Key**: agent:main:feishu:direct:ou_e63ce6b760ad39382852472f28fbe2a2
+- **Session ID**: 8b82aba4-e718-4230-ae03-cdca489297a3
+- **Source**: feishu
diff --git a/skills/vala-order-amortization-stat/SKILL.md b/skills/vala-order-amortization-stat/SKILL.md
index 040a2fa..2741afb 100644
--- a/skills/vala-order-amortization-stat/SKILL.md
+++ b/skills/vala-order-amortization-stat/SKILL.md
@@ -56,7 +56,7 @@ vala-order-amortization-stat/
 - 默认输出维度：账期整体汇总，无需按天/周/月拆分，无需分渠道统计
 ### 步骤2：数据过滤规则
 1. 订单范围：
-   - 2025-09-01 至 账期结束日 内创建的所有订单
+   - 2025-06-01 至 账期结束日 内创建的所有订单
    - bi_vala_order.status IN (3,4)（已完成、已退款订单）
    - 订单实际支付金额≥10元：bi_vala_order.pay_amount_int ≥ 1000（单位：分）
    - 关联bi_vala_app_account表（不限制status，不剔除测试账号）
diff --git a/skills/vala-order-amortization-stat/sql/detail.sql b/skills/vala-order-amortization-stat/sql/detail.sql
index 938dbc0..d1de976 100644
--- a/skills/vala-order-amortization-stat/sql/detail.sql
+++ b/skills/vala-order-amortization-stat/sql/detail.sql
@@ -4,7 +4,6 @@ all_refund_records AS (
   SELECT
     out_trade_no AS order_no,
     SUM(refund_amount_int) / 100 AS total_refund_amount,
-    MAX(CASE WHEN refund_type = 2 THEN 1 ELSE 0 END) AS is_full_refund,
     MAX(refund_type) AS refund_type,
     MAX(DATE(updated_at)) AS latest_refund_date
   FROM bi_refund_order
@@ -29,14 +28,15 @@ order_base AS (
     o.sale_channel,
     CASE WHEN ar.order_no IS NOT NULL THEN 1 ELSE 0 END AS has_refund,
     COALESCE(ar.total_refund_amount, 0) AS total_refund_amount,
-    COALESCE(ar.is_full_refund, 0) AS is_full_refund,
+    CASE WHEN ar.order_no IS NOT NULL AND COALESCE(ar.total_refund_amount, 0) >= o.pay_amount_int / 100 THEN 1 ELSE 0 END AS is_full_refund,
     ar.refund_type,
     ar.latest_refund_date
   FROM bi_vala_order o
   JOIN bi_vala_app_account a ON o.account_id = a.id
   LEFT JOIN all_refund_records ar ON o.out_trade_no = ar.order_no
   WHERE 
-    o.created_at >= '2025-09-01'
+    o.created_at >= '2025-06-01'
+    AND o.created_at <= '{period_end}'::date + INTERVAL '1 day' - INTERVAL '1 second'
     AND o.order_status IN (3,4)
     AND o.pay_amount_int >= 1000
 ),
@@ -102,6 +102,12 @@ order_classified AS (
     -- 均摊有效结束日
     LEAST(owc.amortization_end_date, '{period_end}'::date) AS eff_end,
 
+    -- 判断是否为试用期内退费（退费日 < 转正日，从未产生均摊，不应触发冲销）
+    CASE WHEN owc.has_refund = 1
+              AND owc.latest_refund_date < DATE(owc.amortization_start_date)
+         THEN 1 ELSE 0
+    END AS is_trial_period_refund,
+
     -- 判断是否为账期前全额退费（场景F：排除）
     CASE WHEN owc.has_refund = 1 AND owc.is_full_refund = 1
               AND owc.latest_refund_date < '{period_start}'::date
@@ -181,6 +187,7 @@ SELECT
   CASE
     WHEN is_pre_period_full_refund = 1 THEN '账期前全额退费'
     WHEN is_pre_period_partial_refund = 1 THEN '账期前部分退费'
+    WHEN is_trial_period_refund = 1 AND is_full_refund = 0 THEN '试用期内部分退费'
     WHEN is_current_period_refund = 1 AND is_full_refund = 1 AND is_ordered_in_period = 1 THEN '账期内下单全额退费'
     WHEN is_current_period_refund = 1 AND is_full_refund = 1 AND is_ordered_in_period = 0 THEN '历史下单账期内全额退费'
     WHEN is_current_period_refund = 1 AND is_full_refund = 0 AND is_ordered_in_period = 1 THEN '账期内下单部分退费'
@@ -198,25 +205,28 @@ SELECT
   -- 历史均摊金额（基于原始日均摊）
   ROUND((historical_amorted_days * original_daily_amort_amount)::numeric, 2) AS "历史均摊金额",
 
-  -- 冲销历史均摊（场景B/E：历史下单+账期内退费）
+  -- 冲销历史均摊（场景B/E：历史下单+账期内退费，排除试用期内退费）
   ROUND(
     CASE WHEN is_current_period_refund = 1 AND is_ordered_in_period = 0 AND historical_amorted_days > 0
+              AND is_trial_period_refund = 0
       THEN -(historical_amorted_days * original_daily_amort_amount)
       ELSE 0
     END::numeric, 2
   ) AS "冲销历史均摊",
 
-  -- 冲销原税款（场景B/E：历史下单+账期内退费）
+  -- 冲销原税款（场景B/E：历史下单+账期内退费，排除试用期内退费）
   ROUND(
     CASE WHEN is_current_period_refund = 1 AND is_ordered_in_period = 0
+              AND is_trial_period_refund = 0
       THEN -tax_amount
       ELSE 0
     END::numeric, 2
   ) AS "冲销原税款",
 
-  -- 冲销未确认收入（场景B/E：历史下单+账期内退费）
+  -- 冲销未确认收入（场景B/E：历史下单+账期内退费，排除试用期内退费）
   ROUND(
     CASE WHEN is_current_period_refund = 1 AND is_ordered_in_period = 0
+              AND is_trial_period_refund = 0
       THEN -(after_tax_amount - historical_amorted_days * original_daily_amort_amount)
       ELSE 0
     END::numeric, 2
@@ -227,6 +237,12 @@ SELECT
     CASE
       -- 场景F：账期前全额退费，不统计
       WHEN is_pre_period_full_refund = 1 THEN 0
+      -- 试用期内全额退费，无均摊
+      WHEN is_trial_period_refund = 1 AND is_full_refund = 1 THEN 0
+      -- 试用期内部分退费，按退后金额从转正日正常均摊
+      WHEN is_trial_period_refund = 1 AND is_full_refund = 0 THEN
+        CASE WHEN total_cycle_days > 0 AND period_amort_days > 0
+          THEN daily_amort_amount * period_amort_days ELSE 0 END
       -- 场景D：账期内下单+全额退费，无均摊
       WHEN is_current_period_refund = 1 AND is_full_refund = 1 AND is_ordered_in_period = 1 THEN 0
       -- 场景E：历史下单+账期内全额退费，无退后均摊
@@ -298,4 +314,5 @@ SELECT
   END AS "剩余周期"
 
 FROM order_with_days
-WHERE is_pre_period_full_refund = 0;
+WHERE is_pre_period_full_refund = 0
+  AND NOT (is_trial_period_refund = 1 AND is_full_refund = 1);
diff --git a/skills/vala-order-amortization-stat/sql/summary.sql b/skills/vala-order-amortization-stat/sql/summary.sql
index b30850d..65ad0d8 100644
--- a/skills/vala-order-amortization-stat/sql/summary.sql
+++ b/skills/vala-order-amortization-stat/sql/summary.sql
@@ -4,7 +4,6 @@ all_refund_records AS (
   SELECT
     out_trade_no AS order_no,
     SUM(refund_amount_int) / 100 AS total_refund_amount,
-    MAX(CASE WHEN refund_type = 2 THEN 1 ELSE 0 END) AS is_full_refund,
     MAX(refund_type) AS refund_type,
     MAX(DATE(updated_at)) AS latest_refund_date
   FROM bi_refund_order
@@ -29,14 +28,15 @@ order_base AS (
     o.sale_channel,
     CASE WHEN ar.order_no IS NOT NULL THEN 1 ELSE 0 END AS has_refund,
     COALESCE(ar.total_refund_amount, 0) AS total_refund_amount,
-    COALESCE(ar.is_full_refund, 0) AS is_full_refund,
+    CASE WHEN ar.order_no IS NOT NULL AND COALESCE(ar.total_refund_amount, 0) >= o.pay_amount_int / 100 THEN 1 ELSE 0 END AS is_full_refund,
     ar.refund_type,
     ar.latest_refund_date
   FROM bi_vala_order o
   JOIN bi_vala_app_account a ON o.account_id = a.id
   LEFT JOIN all_refund_records ar ON o.out_trade_no = ar.order_no
   WHERE 
-    o.created_at >= '2025-09-01'
+    o.created_at >= '2025-06-01'
+    AND o.created_at <= '{period_end}'::date + INTERVAL '1 day' - INTERVAL '1 second'
     AND o.order_status IN (3,4)
     AND o.pay_amount_int >= 1000
 ),
@@ -83,6 +83,10 @@ order_classified AS (
     owc.*,
     GREATEST(owc.amortization_start_date, '{period_start}'::date) AS eff_start,
     LEAST(owc.amortization_end_date, '{period_end}'::date) AS eff_end,
+    -- 试用期内退费（退费日 < 转正日，从未产生均摊，不应触发冲销）
+    CASE WHEN owc.has_refund = 1
+              AND owc.latest_refund_date < DATE(owc.amortization_start_date)
+         THEN 1 ELSE 0 END AS is_trial_period_refund,
     CASE WHEN owc.has_refund = 1 AND owc.is_full_refund = 1 AND owc.latest_refund_date < '{period_start}'::date
          THEN 1 ELSE 0 END AS is_pre_period_full_refund,
     CASE WHEN owc.has_refund = 1 AND owc.is_full_refund = 0 AND owc.latest_refund_date < '{period_start}'::date
@@ -129,25 +133,28 @@ summary_calc AS (
     COUNT(CASE WHEN order_date >= '{period_start}'::date AND order_date <= '{period_end}'::date
                     AND amortization_start_date > '{period_end}'::date THEN 1 END) AS trial_orders,
 
-    -- 冲销历史均摊（场景B/E：历史下单+账期内退费）
+    -- 冲销历史均摊（场景B/E：历史下单+账期内退费，排除试用期内退费）
     ROUND(SUM(
       CASE WHEN is_current_period_refund = 1 AND is_ordered_in_period = 0 AND historical_amorted_days > 0
+                AND is_trial_period_refund = 0
         THEN historical_amorted_days * original_daily_amort_amount
         ELSE 0
       END
     )::numeric, 2) AS writeoff_amort,
 
-    -- 冲销原税款（场景B/E：历史下单+账期内退费）
+    -- 冲销原税款（场景B/E：历史下单+账期内退费，排除试用期内退费）
     ROUND(SUM(
       CASE WHEN is_current_period_refund = 1 AND is_ordered_in_period = 0
+                AND is_trial_period_refund = 0
         THEN tax_amount
         ELSE 0
       END
     )::numeric, 2) AS writeoff_tax,
 
-    -- 冲销未确认收入（场景B/E：历史下单+账期内退费）
+    -- 冲销未确认收入（场景B/E：历史下单+账期内退费，排除试用期内退费）
     ROUND(SUM(
       CASE WHEN is_current_period_refund = 1 AND is_ordered_in_period = 0
+                AND is_trial_period_refund = 0
         THEN after_tax_amount - historical_amorted_days * original_daily_amort_amount
         ELSE 0
       END
@@ -157,6 +164,10 @@ summary_calc AS (
     ROUND(SUM(
       CASE
         WHEN is_pre_period_full_refund = 1 THEN 0
+        WHEN is_trial_period_refund = 1 AND is_full_refund = 1 THEN 0  -- 试用期内全额退费，无均摊
+        WHEN is_trial_period_refund = 1 AND is_full_refund = 0 THEN    -- 试用期内部分退费，按退后金额从转正日正常均摊
+          CASE WHEN total_cycle_days > 0 AND period_amort_days > 0
+            THEN daily_amort_amount * period_amort_days ELSE 0 END
         WHEN is_current_period_refund = 1 AND is_full_refund = 1 THEN 0
         -- 场景A：账期内下单+部分退费
         WHEN is_current_period_refund = 1 AND is_full_refund = 0 AND is_ordered_in_period = 1 THEN