diff --git a/app/api/controller/Game.php b/app/api/controller/Game.php
index 734004e..f889b67 100644
--- a/app/api/controller/Game.php
+++ b/app/api/controller/Game.php
@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace app\api\controller;
 
 use app\common\library\game\BetChips;
+use app\common\library\game\GamePeriodNo;
 use app\common\library\game\StreakWinReward;
 use app\common\library\game\ZiHuaDictionary;
 use app\common\model\BetOrder;
@@ -21,7 +22,7 @@ use support\Response;
 
 class Game extends MobileBase
 {
-    protected array $noNeedLogin = ['dictionaryList'];
+    protected array $noNeedLogin = ['dictionaryList', 'periodHistory'];
 
     public function lobbyInit(Request $request): Response
     {
@@ -58,7 +59,10 @@ class Game extends MobileBase
             'runtime_enabled' => GameRecordService::getConfigBool(GameRecordService::KEY_AUTO_CREATE),
             'period' => [
                 'period_id' => $periodRow ? $this->intValue($periodRow['id'] ?? 0) : 0,
-                'period_no' => (string) ($periodRow['period_no'] ?? ''),
+                'period_no' => GamePeriodNo::toDisplay(
+                    (string) ($periodRow['period_no'] ?? ''),
+                    $periodRow ? $this->intValue($periodRow['id'] ?? 0) : 0
+                ),
                 'status' => $this->mapPeriodStatus($periodRow['status'] ?? null),
                 'countdown' => $countdown,
                 'lock_at' => $lockAt,
@@ -105,6 +109,36 @@ class Game extends MobileBase
         ]);
     }
 
+    /**
+     * 获取最近开奖记录（默认最新 30 条），期号为纯数字。
+     */
+    public function periodHistory(Request $request): Response
+    {
+        $response = $this->initializeMobile($request);
+        if ($response !== null) {
+            return $response;
+        }
+        $limit = $this->intValue($request->input('limit', 30));
+        if ($limit < 1) {
+            $limit = 30;
+        }
+        if ($limit > 100) {
+            $limit = 100;
+        }
+        $list = GameRecord::whereNotNull('result_number')->order('id', 'desc')->limit($limit)->select();
+        $rows = [];
+        foreach ($list as $item) {
+            $periodId = $this->intValue($item->id ?? 0);
+            $rows[] = [
+                'period_no' => GamePeriodNo::toDisplay((string) ($item->period_no ?? ''), $periodId),
+                'result_number' => $item->result_number,
+                'open_time' => $item->update_time,
+            ];
+        }
+
+        return $this->mobileSuccess(['list' => $rows]);
+    }
+
     public function periodCurrent(Request $request): Response
     {
         $response = $this->initializeMobile($request);
@@ -120,7 +154,10 @@ class Game extends MobileBase
         return $this->mobileSuccess([
             'runtime_enabled' => GameRecordService::getConfigBool(GameRecordService::KEY_AUTO_CREATE),
             'period_id' => $this->intValue($periodRow['id'] ?? 0),
-            'period_no' => $periodRow['period_no'],
+            'period_no' => GamePeriodNo::toDisplay(
+                (string) ($periodRow['period_no'] ?? ''),
+                $this->intValue($periodRow['id'] ?? 0)
+            ),
             'status' => $this->mapPeriodStatus($periodRow['status'] ?? null),
             'countdown' => max(0, ($startAt + 30) - $now),
             'bet_close_in' => max(0, ($startAt + 20) - $now),
@@ -188,6 +225,12 @@ class Game extends MobileBase
             return $this->mobileError(3001, 'Game is paused');
         }
         $period = GameRecord::where('period_no', $periodNo)->find();
+        if (!$period && ctype_digit($periodNo)) {
+            $periodIdLookup = filter_var($periodNo, FILTER_VALIDATE_INT);
+            if ($periodIdLookup !== false && $periodIdLookup > 0) {
+                $period = GameRecord::find($periodIdLookup);
+            }
+        }
         if (!$period) {
             return $this->mobileError(2002, 'Game period does not exist');
         }
@@ -311,9 +354,13 @@ class Game extends MobileBase
                 'biz_type' => 'bet',
                 'changed_at' => time(),
             ], $userId, $streakAtBet));
+            $periodIdForDisplay = filter_var($period->id ?? null, FILTER_VALIDATE_INT);
+            if ($periodIdForDisplay === false) {
+                $periodIdForDisplay = 0;
+            }
             return $this->mobileSuccess([
                 'order_no' => $orderNo,
-                'period_no' => $period->period_no,
+                'period_no' => GamePeriodNo::toDisplay((string) ($period->period_no ?? ''), $periodIdForDisplay),
                 'status' => 'accepted',
                 'bet_id' => $betChipId,
                 'single_bet_amount' => $singleAmount,
@@ -437,7 +484,7 @@ class Game extends MobileBase
             }
             $rows[] = [
                 'order_no' => (string) $item->id,
-                'period_no' => $item->period_no,
+                'period_no' => GamePeriodNo::toDisplay((string) ($item->period_no ?? ''), $periodIdValue),
                 'numbers' => $item->pick_numbers ?? [],
                 // 整笔压注金额（本笔总扣款）
                 'bet_amount' => $item->total_amount,
diff --git a/app/common/library/game/GamePeriodNo.php b/app/common/library/game/GamePeriodNo.php
new file mode 100644
index 0000000..84147f4
--- /dev/null
+++ b/app/common/library/game/GamePeriodNo.php
@@ -0,0 +1,55 @@
+<?php
+
+declare(strict_types=1);
+
+namespace app\common\library\game;
+
+use support\think\Db;
+
+/**
+ * 游戏期号：纯数字生成与对外展示格式化。
+ */
+final class GamePeriodNo
+{
+    /**
+     * 生成下一期业务期号（纯数字字符串，递增）。
+     */
+    public static function generateNext(): string
+    {
+        $maxIdRaw = Db::name('game_record')->max('id');
+        $maxId = filter_var($maxIdRaw, FILTER_VALIDATE_INT);
+        if ($maxId === false) {
+            $maxId = 0;
+        }
+
+        $maxNumericRow = Db::name('game_record')
+            ->whereRaw("period_no REGEXP '^[0-9]+$'")
+            ->fieldRaw('MAX(CAST(period_no AS UNSIGNED)) AS max_no')
+            ->find();
+        $maxNumericRaw = is_array($maxNumericRow) ? ($maxNumericRow['max_no'] ?? null) : null;
+        $maxNumeric = filter_var($maxNumericRaw, FILTER_VALIDATE_INT);
+        if ($maxNumeric === false) {
+            $maxNumeric = 0;
+        }
+
+        $next = max($maxId, $maxNumeric) + 1;
+
+        return (string) $next;
+    }
+
+    /**
+     * 对外 API / 列表展示的纯数字期号；历史非数字期号回退为 period_id。
+     */
+    public static function toDisplay(string $periodNo, int $periodId = 0): string
+    {
+        $trimmed = trim($periodNo);
+        if ($trimmed !== '' && ctype_digit($trimmed)) {
+            return $trimmed;
+        }
+        if ($periodId > 0) {
+            return (string) $periodId;
+        }
+
+        return $trimmed;
+    }
+}
diff --git a/app/common/service/GameRecordService.php b/app/common/service/GameRecordService.php
index c83eabc..a1714eb 100644
--- a/app/common/service/GameRecordService.php
+++ b/app/common/service/GameRecordService.php
@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace app\common\service;
 
+use app\common\library\game\GamePeriodNo;
 use support\think\Db;
 use Throwable;
 
@@ -192,7 +193,7 @@ final class GameRecordService
 
     private static function generatePeriodNo(): string
     {
-        return date('Ymd-His') . '-' . substr(bin2hex(random_bytes(4)), 0, 8);
+        return GamePeriodNo::generateNext();
     }
 
     private static function truthyConfigInput(mixed $v): bool
diff --git a/web/src/lang/backend/en/game/record.ts b/web/src/lang/backend/en/game/record.ts
index f860ff7..2541421 100644
--- a/web/src/lang/backend/en/game/record.ts
+++ b/web/src/lang/backend/en/game/record.ts
@@ -1,7 +1,7 @@
 export default {
-    'quick Search Fields': 'Round No. / ID',
+    'quick Search Fields': 'Period No. / ID',
     id: 'ID',
-    period_no: 'Round No.',
+    period_no: 'Period No.',
     period_start_at: 'Start time',
     status: 'Status',
     'status 0': 'Betting open',
diff --git a/web/src/lang/backend/zh-cn/game/record.ts b/web/src/lang/backend/zh-cn/game/record.ts
index b962946..e7607a6 100644
--- a/web/src/lang/backend/zh-cn/game/record.ts
+++ b/web/src/lang/backend/zh-cn/game/record.ts
@@ -1,7 +1,7 @@
 export default {
-    'quick Search Fields': '局号/ID',
+    'quick Search Fields': '期数/ID',
     id: 'ID',
-    period_no: '局号',
+    period_no: '期数',
     period_start_at: '开始时间',
     status: '状态',
     'status 0': '下注开放',