diff --git a/src/Payment/AfterSaleService.php b/src/Payment/AfterSaleService.php
index 54e11b3e..db3846ca 100644
--- a/src/Payment/AfterSaleService.php
+++ b/src/Payment/AfterSaleService.php
@@ -149,12 +149,23 @@ final class AfterSaleService {
 		try {
 			$order = OrderRepository::get_instance()->get_user_order($user_id, $order_number);
 			if (!$order || (string) ($order['status'] ?? '') !== Order::STATUS_PAID) return new \WP_Error('aksrt_after_sale_order', __('只有已支付订单可以申请售后', 'aksrt'), ['status' => 409]);
-			$active = $this->find_active($order_number);
-			if ($active) {
-				if ((int) ($active['user_id'] ?? 0) === $user_id && hash_equals((string) ($active['reason'] ?? ''), $reason)) {
-					return $active;
+			// 以「最新一条工单」为准，而不是只看进行中的：已完结的工单同样要挡住再次申请。
+			// 订单有没有另标「已退款」不影响这条——工单 completed 即售后已终结。
+			$latest = $this->latest_for_order($order_number);
+			if ($latest !== null) {
+				$latest_status = (string) ($latest['status'] ?? '');
+				// 待审核 / 处理中：工单仍在流转，挡住重复申请；同人同因视为重复提交，幂等返回原工单。
+				if (in_array($latest_status, [self::STATUS_PENDING, self::STATUS_PROCESSING], true)) {
+					if ((int) ($latest['user_id'] ?? 0) === $user_id && hash_equals((string) ($latest['reason'] ?? ''), $reason)) {
+						return $latest;
+					}
+					return new \WP_Error('aksrt_after_sale_exists', __('该订单已有未结束售后申请', 'aksrt'), ['status' => 409]);
 				}
-				return new \WP_Error('aksrt_after_sale_exists', __('该订单已有未结束售后申请', 'aksrt'), ['status' => 409]);
+				// 已完成：售后已终结，不再受理新的申请。
+				if ($latest_status === self::STATUS_COMPLETED) {
+					return new \WP_Error('aksrt_after_sale_exists', __('该订单的售后申请已完结，不能再次申请', 'aksrt'), ['status' => 409]);
+				}
+				// rejected / cancelled：允许补充资料后再次发起。
 			}
 			$amount = $this->refund_amount($order);
 			if ($amount === null) return new \WP_Error('aksrt_after_sale_amount', __('订单退款金额无效', 'aksrt'), ['status' => 400]);
diff --git a/src/Payment/UserOrders.php b/src/Payment/UserOrders.php
index 4ebe86c0..11611397 100644
--- a/src/Payment/UserOrders.php
+++ b/src/Payment/UserOrders.php
@@ -293,13 +293,16 @@ class UserOrders {
         // - completed：退款已完成，工单终结，不允许再次申请。
         $reapplyable_statuses = [AfterSaleService::STATUS_REJECTED, AfterSaleService::STATUS_CANCELLED];
         $latest_status = (string) ($latest['status'] ?? '');
+        // 有工单时只有 rejected / cancelled 才放行再次申请：completed 的工单已终结，
+        // 订单有没有另标「已退款」都不影响——AfterSaleService::create() 按同一口径拦截。
+        $reapplyable = !$has_application || in_array($latest_status, $reapplyable_statuses, true);
 
         return [
             'enabled'         => $enabled,
             'expired'         => (bool) $expired,
             'has_application' => $has_application,
             'open'            => $open,
-            'can_apply'       => $enabled && !$expired && !$open,
+            'can_apply'       => $enabled && !$expired && !$open && $reapplyable,
             'can_reapply'     => $enabled && !$expired && $has_application && in_array($latest_status, $reapplyable_statuses, true),
             'latest'          => $has_application ? [
                 'status'        => (string) ($latest['status'] ?? ''),
diff --git a/tests/widget-system/after-sale-log-harness.php b/tests/widget-system/after-sale-log-harness.php
index b4972e9d..13b29849 100644
--- a/tests/widget-system/after-sale-log-harness.php
+++ b/tests/widget-system/after-sale-log-harness.php
@@ -214,6 +214,40 @@ namespace {
 			&& $broken === [],
 			'detail' => ['normalized' => $normalized, 'broken_json' => $broken]];
 
+		// 6) 再次申请的闸门看「最新一条工单」，不是只看进行中的：completed 一律挡住，
+		//    rejected / cancelled 放行；订单有没有另标已退款不影响这条。
+		$gate = static function (string $status) use ($service, $wpdb, $order) {
+			$wpdb->rows = [];
+			$wpdb->rows[950] = ['id' => 950, 'order_number' => $order['order_number'], 'user_id' => 7, 'status' => $status,
+				'reason' => '旧申请', 'handling_log' => wp_json_encode([['status' => $status, 'note' => '', 'source' => 'admin', 'created_at' => '2026-10-01 10:00:00']]),
+				'created_at' => '2026-10-01 10:00:00'];
+			return $service->create(7, $order['order_number'], '新的申请原因');
+		};
+		$completed = $gate('completed');
+		$rejected = $gate('rejected');
+		$cancelled = $gate('cancelled');
+		$results[] = ['name' => 'completed_ticket_blocks_reapply', 'ok' => $completed instanceof \WP_Error
+			&& $completed->get_error_code() === 'aksrt_after_sale_exists'
+			&& !$rejected instanceof \WP_Error
+			&& !$cancelled instanceof \WP_Error,
+			'detail' => [
+				'completed' => $completed instanceof \WP_Error ? $completed->get_error_code() : 'created',
+				'rejected'  => $rejected instanceof \WP_Error ? $rejected->get_error_code() : 'created',
+				'cancelled' => $cancelled instanceof \WP_Error ? $cancelled->get_error_code() : 'created',
+			]];
+
+		// 待审核：同人同因幂等返回原工单，换原因则挡住
+		$wpdb->rows = [];
+		$wpdb->rows[951] = ['id' => 951, 'order_number' => $order['order_number'], 'user_id' => 7, 'status' => 'pending',
+			'reason' => '同一个原因', 'handling_log' => '[]', 'created_at' => '2026-10-01 10:00:00'];
+		$same = $service->create(7, $order['order_number'], '同一个原因');
+		$other = $service->create(7, $order['order_number'], '换了个原因');
+		$results[] = ['name' => 'open_ticket_blocks_duplicate_apply', 'ok' => is_array($same)
+			&& (int) $same['id'] === 951
+			&& $other instanceof \WP_Error
+			&& $other->get_error_code() === 'aksrt_after_sale_exists',
+			'detail' => ['same' => is_array($same) ? (int) $same['id'] : 'error', 'other' => $other instanceof \WP_Error ? $other->get_error_code() : 'created']];
+
 		return $results;
 	}
 
diff --git a/tests/widget-system/after-sale-policy-contract.test.cjs b/tests/widget-system/after-sale-policy-contract.test.cjs
index 05d292fd..07478626 100644
--- a/tests/widget-system/after-sale-policy-contract.test.cjs
+++ b/tests/widget-system/after-sale-policy-contract.test.cjs
@@ -233,7 +233,9 @@ test('order view model exposes the after-sale button matrix', () => {
   assert.match(userOrders, /'expired'\s*=> \(bool\) \$expired,/)
   assert.match(userOrders, /'has_application' => \$has_application,/)
   assert.match(userOrders, /'open'\s*=> \$open,/)
-  assert.match(userOrders, /'can_apply'\s*=> \$enabled && !\$expired && !\$open,/)
+  // completed 的工单已终结，订单没另标「已退款」也不能再申请
+  assert.match(userOrders, /'can_apply'\s*=> \$enabled && !\$expired && !\$open && \$reapplyable,/)
+  assert.match(userOrders, /\$reapplyable = !\$has_application \|\| in_array\(\$latest_status, \$reapplyable_statuses, true\);/)
   // 可再次申请售后按工单状态推理：rejected（被拒绝）/ cancelled（已取消）允许再次申请；
   // pending / processing / approved（流转中）与 completed（已完结）不允许
   assert.match(userOrders, /\$reapplyable_statuses = \[AfterSaleService::STATUS_REJECTED, AfterSaleService::STATUS_CANCELLED\];/)
@@ -503,6 +505,8 @@ test('handling-log behaviour is covered against the real service', () => {
     'cancel_appends_user_entry',
     'log_is_capped_at_50',
     'normalize_drops_malformed_entries',
+    'completed_ticket_blocks_reapply',
+    'open_ticket_blocks_duplicate_apply',
   ]) {
     assert.ok(names.includes(name), `missing handling-log scenario: ${name}`)
   }
diff --git a/tests/widget-system/order-after-sale-assets-contract.test.cjs b/tests/widget-system/order-after-sale-assets-contract.test.cjs
index 3a736c4d..4dae153d 100644
--- a/tests/widget-system/order-after-sale-assets-contract.test.cjs
+++ b/tests/widget-system/order-after-sale-assets-contract.test.cjs
@@ -62,7 +62,16 @@ test('after-sale submissions are order-locked and admins set status directly', (
     const column = block.slice(0, block.indexOf('ENGINE=InnoDB'))
     assert.ok(!column.includes(dead), `${dead} column must be removed from aksrt_order_aftersale`)
   }
-  assert.match(afterSale, /GET_LOCK\(%s, 5\)[\s\S]*?get_user_order\(\$user_id, \$order_number\)[\s\S]*?find_active\(\$order_number\)/)
+  // create() 的重复申请闸门看「最新一条工单」而不是只看进行中的：已完结同样要挡
+  assert.match(afterSale, /GET_LOCK\(%s, 5\)[\s\S]*?get_user_order\(\$user_id, \$order_number\)[\s\S]*?latest_for_order\(\$order_number\)/)
+  assert.ok(afterSale.includes("return new \\WP_Error('aksrt_after_sale_exists', __('该订单的售后申请已完结，不能再次申请', 'aksrt'), ['status' => 409]);"),
+    'completed ticket must block a new application')
+  // 待审核 / 处理中仍走同人同因幂等，rejected / cancelled 放行再次发起
+  assert.match(afterSale, /in_array\(\$latest_status, \[self::STATUS_PENDING, self::STATUS_PROCESSING\], true\)/)
+  assert.match(afterSale, /hash_equals\(\(string\) \(\$latest\['reason'\] \?\? ''\), \$reason\)/)
+  // 只看 create() 方法体，避免跨方法匹配到 cancel_for_user() 里的 find_active
+  const createBody = afterSale.slice(afterSale.indexOf('public function create('), afterSale.indexOf('private function sanitize_images('))
+  assert.ok(!createBody.includes('find_active'), 'create must not gate on find_active alone')
   assert.match(afterSale, /Order::STATUS_PAID/)
   assert.match(afterSale, /public function set_status\(int \$id, string \$status, string \$note = ''\)/)
   assert.match(afterSale, /in_array\(\$status, \[self::STATUS_PENDING, self::STATUS_PROCESSING, self::STATUS_COMPLETED, self::STATUS_REJECTED, self::STATUS_CANCELLED\], true\)/)