diff --git a/_config/sql/update-tables.sql b/_config/sql/update-tables.sql
index 5173d21fd..143273862 100644
--- a/_config/sql/update-tables.sql
+++ b/_config/sql/update-tables.sql
@@ -145,6 +145,14 @@ COMMENT ON COLUMN "public"."pay_gateway_order"."pay_body" IS '支付参数体(
 ALTER TABLE "public"."pay_gateway_order" ADD COLUMN IF NOT EXISTS "pay_body_type" varchar(32);
 COMMENT ON COLUMN "public"."pay_gateway_order"."pay_body_type" IS '支付参数体类型';
 
+-- 网关容器对齐普通容器: 通道附加参数
+ALTER TABLE "public"."pay_gateway_order" ADD COLUMN IF NOT EXISTS "extra_param" varchar(2048);
+COMMENT ON COLUMN "public"."pay_gateway_order"."extra_param" IS '通道附加参数';
+
+-- 网关不支持线下终端/被扫: 移除无用列（重构期可破坏性变更）
+ALTER TABLE "public"."pay_gateway_order" DROP COLUMN IF EXISTS "terminal_no";
+ALTER TABLE "public"."pay_gateway_order" DROP COLUMN IF EXISTS "bar_code";
+
 -- 实际上送串索引(回调反查)
 CREATE INDEX IF NOT EXISTS "idx_pay_trade_relation_order_no" ON "public"."pay_trade" ("relation_order_no");
 CREATE INDEX IF NOT EXISTS "idx_pay_normal_order_order_no" ON "public"."pay_normal_order" ("order_no");
diff --git a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/convert/GatewayPayOrderConvert.java b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/convert/GatewayPayOrderConvert.java
index 61f87beb6..d98a9809b 100644
--- a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/convert/GatewayPayOrderConvert.java
+++ b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/convert/GatewayPayOrderConvert.java
@@ -5,11 +5,15 @@ import cn.daxpay.open.payment.trade.order.result.GatewayPayOrderResult;
 import org.mapstruct.Mapper;
 import org.mapstruct.factory.Mappers;
 
-/// # 网关支付业务单转换
+/// # 网关支付业务单转换(管理)
+///
+/// 仅做容器(GatewayPayOrder)到列表 Result 的映射;
+/// 详情场景的资金凭证(PayTrade)字段由 Service 层手动补充, 与 [NormalPayOrderConvert] 一致
 @Mapper
 public interface GatewayPayOrderConvert {
 
     GatewayPayOrderConvert CONVERT = Mappers.getMapper(GatewayPayOrderConvert.class);
 
+    /// GatewayPayOrder → Result (列表用, 不含资金凭证字段)
     GatewayPayOrderResult toResult(GatewayPayOrder entity);
 }
diff --git a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/entity/GatewayPayOrder.java b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/entity/GatewayPayOrder.java
index 749c25011..5d795fa21 100644
--- a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/entity/GatewayPayOrder.java
+++ b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/entity/GatewayPayOrder.java
@@ -1,6 +1,7 @@
 package cn.daxpay.open.payment.trade.order.entity;
 
 import cn.daxpay.open.payment.common.entity.MchBaseEntity;
+import cn.daxpay.open.payment.merchant.enums.CashierSceneEnum;
 import cn.daxpay.open.payment.trade.enums.GatewayOrderStatusEnum;
 import cn.daxpay.open.payment.trade.enums.GatewayPayTypeEnum;
 import cn.daxpay.open.payment.unipay.param.trade.pay.GoodsDetail;
@@ -20,23 +21,24 @@ import java.util.List;
 
 /// # 网关支付业务单容器
 ///
-/// 业务容器统一落在 trade.order（与 NormalPayOrder 同包）。
-/// 聚合扫码/收银台预下单场景: 创建时不知具体通道, 仅承载收款意图。
+/// 业务容器统一落在 trade.order（与 [NormalPayOrder] 同包，纯持久化无编排 service）。
+/// 聚合扫码/收银台预下单场景: 创建时不知具体通道, 仅承载收款意图（bizOrderNo / 标题 / 回调 等）;
 /// 用户真正支付时再创建 pay_trade(trade_type=gateway) 并回填 channel/product/method。
-/// 网关 orderNo 为预下单 URL 号, 与资金 tradeNo 身份分离。
+/// 网关 orderNo 为预下单 URL 号（号段 order()=ORD…）, 与资金 tradeNo（PAY…）身份分离;
+/// 冗余存储金额/支付/时间线字段, 便于后台查询无需 JOIN pay_trade。
 @Data
 @EqualsAndHashCode(callSuper = true)
 @Accessors(chain = true)
 @TableName(value = "pay_gateway_order", autoResultMap = true)
 public class GatewayPayOrder extends MchBaseEntity {
 
-    /// 平台网关业务单号(URL 用, 预下单即生成, 可无 trade)
+    /// 平台业务单号（容器身份，与 tradeNo 独立生成；预下单即生成、可无 trade；普通通道默认作为上送号 / URL 落地号）
     private String orderNo;
 
     /// 商户业务单号
     private String bizOrderNo;
 
-    /// 网关类型
+    /// 网关支付类型（预下单写入）
     /// @see GatewayPayTypeEnum
     private String gatewayType;
 
@@ -50,25 +52,29 @@ public class GatewayPayOrder extends MchBaseEntity {
     /// @see GatewayOrderStatusEnum
     private String status;
 
-    /// 异步通知地址
+    /// 异步通知地址（出站商户通知用）
     private String notifyUrl;
 
     /// 同步跳转地址
     private String returnUrl;
 
-    /// 商户附加参数
+    /// 商户附加参数（回调原样返回）
     private String attach;
 
-    /// 过期时间
+    /// 业务单过期时间（超时关单权威，不落 pay_trade）
     private OffsetDateTime expiredTime;
 
-    /// 金额(最小货币单位)
+    // ===== 金额（冗余，方便查询；预下单即确定，支付前可无 Trade）=====
+
+    /// 业务单金额（最小货币单位）
     private Long amount;
 
     /// 币种
     /// @see CurrencyEnum
     private String currency;
 
+    // ===== 支付信息（支付时回填，查询过滤用）=====
+
     /// 支付通道编码（冗余自 product → ProductEnum#getChannel，对应 ChannelEnum；非 PayProviderEnum）
     /// @see cn.daxpay.open.platform.core.enums.pay.channel.ChannelEnum
     private String channel;
@@ -81,44 +87,41 @@ public class GatewayPayOrder extends MchBaseEntity {
     /// @see cn.daxpay.open.platform.core.enums.unipay.PayLimitPayEnum
     private String limitPay;
 
-    /// 支付产品
+    /// 支付产品编码
     /// @see ProductEnum
     private String product;
 
-    /// 支付能力(路由回填)
-    private String capability;
-
-    /// 通道商户号(路由回填)
-    private String channelMchNo;
-
-    /// 通道应用 AppId（本笔交易实际使用的微信/通道侧 AppId 快照；解析后写入，关退同步复用）
-    private String channelAppId;
-
-    // ===== 支付请求参数（支付时写入）=====
+    // ===== 支付请求参数（支付时写入，审计保留；网关无被扫，不承载 barCode）=====
 
     /// 微信 openid（jsapi/app/miniapp）
     private String openid;
 
-    /// 付款码（被扫支付）
-    private String barCode;
-
-    /// 收银场景 wechat_pay/alipay/union_pay
+    /// 收银场景（环境识别，支付时回填；与聚合/收银台配置共用同一字典）
+    /// @see CashierSceneEnum
     private String scene;
 
-    /// 最后发起设备 mobile/pc
+    /// 最后发起设备（mobile/pc，支付时回填；与 H5 端 window.__DEVICE__ 一致）
     private String device;
 
+    // ===== 时间线（冗余，查询展示用）=====
+
     /// 支付成功时间
     private OffsetDateTime payTime;
 
     /// 关闭时间
     private OffsetDateTime closeTime;
 
-    /// 下单客户端 IP；关单/同步/退款透传通道的单一事实源，兼审计排查
-    private String clientIp;
+    // ===== 通道路由（同步时用于解析通道应用凭证；支付路由后回填）=====
 
-    /// 终端设备编码
-    private String terminalNo;
+    /// 通道商户号(路由回填)
+    private String channelMchNo;
+
+    /// 支付能力编码(路由回填)
+    /// @see cn.daxpay.open.platform.core.enums.pay.channel.PayCapabilityEnum
+    private String capability;
+
+    /// 通道应用 AppId（本笔交易实际使用的微信/通道侧 AppId 快照；解析后写入，关退同步复用）
+    private String channelAppId;
 
     // ===== 通道回执（支付成功/同步后写入）=====
 
@@ -126,7 +129,7 @@ public class GatewayPayOrder extends MchBaseEntity {
     /// @see cn.daxpay.open.platform.core.enums.pay.channel.PayProviderEnum
     private String provider;
 
-    /// 付款用户 ID（支付宝 buyer_user_id 等）
+    /// 付款用户标识（支付宝 user_id、微信 openid 等，非通道 AppId）
     private String buyerId;
 
     /// 通道方记录的支付产品
@@ -141,29 +144,37 @@ public class GatewayPayOrder extends MchBaseEntity {
     /// 活动类型
     private String promotionType;
 
-    /// 支付参数体（已拉起缓存，仅落容器）
+    /// 支付参数体（如微信 prepay_id 组装串，非空表示已拉起支付，免重复请求通道；仅落容器）
     private String payBody;
 
-    /// 支付参数体类型
+    /// 支付参数体类型（jsapi/sdk/app）
     private String payBodyType;
 
-    // ===== 通道关联订单号（部分通道专用）=====
+    // ===== 关联订单号 =====
 
     /// 透传订单号（三方通道产生的透传订单号）
     private String transOrderNo;
 
     /// 实际上送通道的商户订单号（展示冗余；反查权威在 pay_trade.relation_order_no）
+    /// 普通通道与 orderNo 一致；特殊通道为变形号
     private String relationOrderNo;
 
+    // ===== 请求信息（关单/同步/退款透传依赖 + 审计）=====
+
+    /// 通道附加参数
+    private String extraParam;
 
     /// 应用号
     @TableField(updateStrategy = FieldStrategy.NEVER)
     private String appId;
 
-    /// 商品明细
+    /// 订单商品明细列表（jsonb 存储）
     @TableField(typeHandler = JacksonTypeHandler.class)
     private List<GoodsDetail> goodsDetail;
 
+    /// 下单客户端 IP；关单/同步/退款透传通道的单一事实源，兼审计排查
+    private String clientIp;
+
     /// 错误信息
     @TableField(updateStrategy = FieldStrategy.ALWAYS)
     private String errorMsg;
diff --git a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/param/GatewayPayOrderQuery.java b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/param/GatewayPayOrderQuery.java
index 6966ca722..195edce54 100644
--- a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/param/GatewayPayOrderQuery.java
+++ b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/param/GatewayPayOrderQuery.java
@@ -8,6 +8,8 @@ import lombok.experimental.Accessors;
 import java.time.OffsetDateTime;
 
 /// # 网关支付业务单查询参数(管理)
+///
+/// 查询维度与 [NormalPayOrderQuery] 对齐, 另含网关类型 gatewayType / 平台单号 orderNo。
 @Data
 @Accessors(chain = true)
 @Schema(title = "网关支付业务单查询参数")
@@ -29,10 +31,16 @@ public class GatewayPayOrderQuery {
     @Schema(description = "商户业务单号")
     private String bizOrderNo;
 
+    @QueryParam(type = QueryParam.CompareTypeEnum.LIKE)
+    @Schema(description = "订单标题")
+    private String title;
+
+    /// @see cn.daxpay.open.payment.trade.enums.GatewayPayTypeEnum
     @QueryParam(type = QueryParam.CompareTypeEnum.EQ)
     @Schema(description = "网关类型")
     private String gatewayType;
 
+    /// @see cn.daxpay.open.payment.trade.enums.GatewayOrderStatusEnum
     @QueryParam(type = QueryParam.CompareTypeEnum.EQ)
     @Schema(description = "业务状态")
     private String status;
@@ -41,6 +49,12 @@ public class GatewayPayOrderQuery {
     @Schema(description = "支付通道")
     private String channel;
 
+    /// @see cn.daxpay.open.platform.core.enums.pay.channel.PayMethodEnum
+    @QueryParam(type = QueryParam.CompareTypeEnum.EQ)
+    @Schema(description = "支付方式")
+    private String method;
+
+    /// @see cn.daxpay.open.platform.core.enums.pay.channel.ProductEnum
     @QueryParam(type = QueryParam.CompareTypeEnum.EQ)
     @Schema(description = "支付产品")
     private String product;
@@ -52,4 +66,12 @@ public class GatewayPayOrderQuery {
     @QueryParam(type = QueryParam.CompareTypeEnum.LE, fieldName = "create_time")
     @Schema(description = "创建时间-结束")
     private OffsetDateTime createTimeEnd;
+
+    @QueryParam(type = QueryParam.CompareTypeEnum.GE, fieldName = "amount")
+    @Schema(description = "金额下限(分)")
+    private Long amountMin;
+
+    @QueryParam(type = QueryParam.CompareTypeEnum.LE, fieldName = "amount")
+    @Schema(description = "金额上限(分)")
+    private Long amountMax;
 }
diff --git a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/result/GatewayPayOrderResult.java b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/result/GatewayPayOrderResult.java
index 54cf3dc4a..e53289351 100644
--- a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/result/GatewayPayOrderResult.java
+++ b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/trade/order/result/GatewayPayOrderResult.java
@@ -9,12 +9,18 @@ import lombok.experimental.Accessors;
 import java.time.OffsetDateTime;
 
 /// # 网关支付业务单(管理)
+///
+/// 列表场景仅填充容器(GatewayPayOrder)字段;
+/// 详情场景额外填充资金凭证(PayTrade)字段: tradeNo / outOrderNo / fundStatus 等。
+/// 字段契约与 [NormalPayOrderResult] 对齐, 另含网关独有 gatewayType / scene / device。
 @EqualsAndHashCode(callSuper = true)
 @Data
 @Accessors(chain = true)
 @Schema(title = "网关支付业务单")
 public class GatewayPayOrderResult extends BaseResult {
 
+    // ===== 容器(业务单)字段 =====
+
     @Schema(description = "商户号")
     private String mchNo;
 
@@ -27,6 +33,7 @@ public class GatewayPayOrderResult extends BaseResult {
     @Schema(description = "商户业务单号")
     private String bizOrderNo;
 
+    /// @see cn.daxpay.open.payment.trade.enums.GatewayPayTypeEnum
     @Schema(description = "网关类型")
     private String gatewayType;
 
@@ -36,39 +43,10 @@ public class GatewayPayOrderResult extends BaseResult {
     @Schema(description = "描述")
     private String description;
 
+    /// @see cn.daxpay.open.payment.trade.enums.GatewayOrderStatusEnum
     @Schema(description = "业务状态")
     private String status;
 
-    @Schema(description = "金额(分)")
-    private Long amount;
-
-    @Schema(description = "币种")
-    private String currency;
-
-    @Schema(description = "过期时间")
-    private OffsetDateTime expiredTime;
-
-    @Schema(description = "支付通道")
-    private String channel;
-
-    @Schema(description = "支付方式")
-    private String method;
-
-    @Schema(description = "支付产品")
-    private String product;
-
-    @Schema(description = "收银场景")
-    private String scene;
-
-    @Schema(description = "设备")
-    private String device;
-
-    @Schema(description = "支付成功时间")
-    private OffsetDateTime payTime;
-
-    @Schema(description = "关闭时间")
-    private OffsetDateTime closeTime;
-
     @Schema(description = "异步通知地址")
     private String notifyUrl;
 
@@ -78,19 +56,103 @@ public class GatewayPayOrderResult extends BaseResult {
     @Schema(description = "商户附加参数")
     private String attach;
 
-    // ===== Trade 联表 =====
+    @Schema(description = "过期时间")
+    private OffsetDateTime expiredTime;
+
+    @Schema(description = "金额(分)")
+    private Long amount;
+
+    @Schema(description = "币种")
+    private String currency;
+
+    @Schema(description = "支付通道")
+    private String channel;
+
+    @Schema(description = "支付方式")
+    private String method;
+
+    @Schema(description = "支付产品")
+    private String product;
+
+    @Schema(description = "限制支付类型")
+    private String limitPay;
+
+    /// @see cn.daxpay.open.payment.merchant.enums.CashierSceneEnum
+    @Schema(description = "收银场景(环境识别)")
+    private String scene;
+
+    @Schema(description = "设备(mobile/pc)")
+    private String device;
+
+    @Schema(description = "支付成功时间")
+    private OffsetDateTime payTime;
+
+    @Schema(description = "关闭时间")
+    private OffsetDateTime closeTime;
+
+    @Schema(description = "通道商户号")
+    private String channelMchNo;
+
+    @Schema(description = "支付能力编码")
+    private String capability;
+
+    @Schema(description = "通道应用AppId")
+    private String channelAppId;
+
+    @Schema(description = "客户端IP")
+    private String clientIp;
+
+    @Schema(description = "通道附加参数")
+    private String extraParam;
+
+    // ===== 资金凭证(PayTrade)联表字段, 仅详情时填充 =====
+
     @Schema(description = "资金交易号")
     private String tradeNo;
 
     @Schema(description = "通道订单号")
     private String outOrderNo;
 
+    /// @see cn.daxpay.open.payment.trade.enums.PayFundStatusEnum
     @Schema(description = "资金状态")
     private String fundStatus;
 
-    @Schema(description = "可退金额")
+    @Schema(description = "可退金额(分)")
     private Long refundableBalance;
 
+    @Schema(description = "支付参数体")
+    private String payBody;
+
+    @Schema(description = "支付参数体类型")
+    private String payBodyType;
+
+    @Schema(description = "付款用户ID")
+    private String buyerId;
+
+    @Schema(description = "微信openid")
+    private String openid;
+
+    @Schema(description = "支付渠道(厂商)")
+    private String provider;
+
+    @Schema(description = "通道方记录的支付产品")
+    private String tradeProduct;
+
+    @Schema(description = "通道方记录的交易方式")
+    private String tradeWay;
+
+    @Schema(description = "银行卡类型")
+    private String bankType;
+
+    @Schema(description = "活动类型")
+    private String promotionType;
+
+    @Schema(description = "透传订单号")
+    private String transOrderNo;
+
+    @Schema(description = "实际上送通道的商户订单号")
+    private String relationOrderNo;
+
     @Schema(description = "错误信息")
     private String errorMsg;
 }
diff --git a/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/param/AggregateQrPayParam.java b/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/param/AggregateQrPayParam.java
index 4c2a952da..68007973d 100644
--- a/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/param/AggregateQrPayParam.java
+++ b/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/param/AggregateQrPayParam.java
@@ -16,8 +16,9 @@ public class AggregateQrPayParam {
     @Size(max = 64, message = "{validation.field.orderNo.size}")
     private String orderNo;
 
+    /// 收银场景（环境识别，与聚合/收银台配置共用 [CashierSceneEnum]）
     /// @see CashierSceneEnum
-    @Schema(description = "收银场景 wechat_pay/alipay/union_pay")
+    @Schema(description = "收银场景(CashierSceneEnum: wechat_pay/alipay/union_pay/douyin/browser)")
     @NotBlank(message = "{validation.field.scene.notBlank}")
     @Size(max = 32, message = "{validation.field.scene.size}")
     private String scene;
@@ -26,7 +27,7 @@ public class AggregateQrPayParam {
     @Size(max = 128, message = "{validation.field.openId.size}")
     private String openId;
 
-    @Schema(description = "设备 mobile/pc")
+    @Schema(description = "设备(mobile/pc, 与 H5 __DEVICE__ 一致)")
     @Size(max = 16, message = "{validation.field.device.size}")
     private String device;
 
diff --git a/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/param/GatewayPrePayParam.java b/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/param/GatewayPrePayParam.java
index a592af181..d4c03228b 100644
--- a/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/param/GatewayPrePayParam.java
+++ b/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/param/GatewayPrePayParam.java
@@ -3,9 +3,7 @@ package cn.daxpay.open.payment.unipay.gateway.param;
 import cn.daxpay.open.payment.trade.enums.GatewayPayTypeEnum;
 import cn.daxpay.open.payment.unipay.param.MerchantPaymentCommonParam;
 import cn.daxpay.open.payment.unipay.param.trade.pay.GoodsDetail;
-import cn.daxpay.open.payment.unipay.param.trade.pay.TerminalInfo;
 import io.swagger.v3.oas.annotations.media.Schema;
-import jakarta.validation.Valid;
 import jakarta.validation.constraints.*;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
@@ -57,13 +55,14 @@ public class GatewayPrePayParam extends MerchantPaymentCommonParam {
     @Size(max = 512, message = "{validation.field.attach.size}")
     private String attach;
 
+    /// 支付扩展参数（JSON 格式，通道特有的长尾参数；与 [NormalPayParam#extraParam] 对齐）
+    @Schema(description = "支付扩展参数")
+    @Size(max = 2048, message = "{validation.field.extraParam.size}")
+    private String extraParam;
+
     @Schema(description = "过期时间")
     private OffsetDateTime expiredTime;
 
-    @Valid
-    @Schema(description = "终端信息")
-    private TerminalInfo terminal;
-
     @Schema(description = "商品明细")
     private List<GoodsDetail> goodsDetail;
 }
diff --git a/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/service/GatewayPayAssistService.java b/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/service/GatewayPayAssistService.java
index 4fd4952c0..fcb1bb4ec 100644
--- a/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/service/GatewayPayAssistService.java
+++ b/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/service/GatewayPayAssistService.java
@@ -88,19 +88,20 @@ public class GatewayPayAssistService {
             if (Objects.equals(status, GatewayOrderStatusEnum.PAID.getCode())) {
                 throw new BizInfoException(CommonErrorCode.VALIDATE_PARAMETERS_ERROR, "pay.error.pay.alreadySuccess");
             }
-            if (List.of(GatewayOrderStatusEnum.CLOSED.getCode(), GatewayOrderStatusEnum.EXPIRED.getCode())
-                    .contains(status)) {
+            // failed 与 closed/expired 同为终态, 不允许再返回原 URL 假装可付
+            if (List.of(GatewayOrderStatusEnum.CLOSED.getCode(), GatewayOrderStatusEnum.EXPIRED.getCode(),
+                    GatewayOrderStatusEnum.FAILED.getCode()).contains(status)) {
                 throw new BizInfoException(CommonErrorCode.VALIDATE_PARAMETERS_ERROR, "pay.error.pay.failedOrClosed");
             }
             return this.buildPrePayResult(order);
         }
 
         OffsetDateTime expiredTime = payAssistService.getExpiredTime(param.getExpiredTime());
-        String terminalNo = param.getTerminal() != null ? param.getTerminal().getTerminalNo() : null;
 
         GatewayPayOrder order = new GatewayPayOrder();
         order.setAppId(param.getAppId());
-        order.setOrderNo(TradeNoGenerateUtil.pay());
+        // 容器业务单号用 order() 号段(ORD…), 与资金 tradeNo 的 pay() 号段(PAY…)身份分离
+        order.setOrderNo(TradeNoGenerateUtil.order());
         order.setBizOrderNo(param.getBizOrderNo());
         order.setGatewayType(typeEnum.getCode());
         order.setTitle(param.getTitle());
@@ -109,11 +110,11 @@ public class GatewayPayAssistService {
         order.setNotifyUrl(param.getNotifyUrl());
         order.setReturnUrl(param.getReturnUrl());
         order.setAttach(param.getAttach());
+        order.setExtraParam(param.getExtraParam());
         order.setExpiredTime(expiredTime);
         order.setAmount(param.getAmount());
         order.setCurrency(CurrencyEnum.CNY.getCode());
         order.setClientIp(param.getClientIp());
-        order.setTerminalNo(terminalNo);
         order.setGoodsDetail(param.getGoodsDetail());
         gatewayPayOrderManager.save(order);
 
@@ -140,8 +141,9 @@ public class GatewayPayAssistService {
         if (Objects.equals(status, GatewayOrderStatusEnum.PAID.getCode())) {
             throw new BizInfoException(CommonErrorCode.VALIDATE_PARAMETERS_ERROR, "pay.error.pay.alreadySuccess");
         }
-        if (List.of(GatewayOrderStatusEnum.CLOSED.getCode(), GatewayOrderStatusEnum.EXPIRED.getCode())
-                .contains(status)) {
+        // 与 NormalPayOrder 终态校验对齐: failed / closed / expired 均不可继续支付
+        if (List.of(GatewayOrderStatusEnum.CLOSED.getCode(), GatewayOrderStatusEnum.EXPIRED.getCode(),
+                GatewayOrderStatusEnum.FAILED.getCode()).contains(status)) {
             throw new BizInfoException(CommonErrorCode.VALIDATE_PARAMETERS_ERROR, "pay.error.pay.failedOrClosed");
         }
         if (Objects.nonNull(order.getExpiredTime())
diff --git a/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/service/GatewayPayHandleService.java b/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/service/GatewayPayHandleService.java
index d1dee6c82..7c18c0aaa 100644
--- a/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/service/GatewayPayHandleService.java
+++ b/daxpay-payment/daxpay-payment-unipay/src/main/java/cn/daxpay/open/payment/unipay/gateway/service/GatewayPayHandleService.java
@@ -157,8 +157,9 @@ public class GatewayPayHandleService {
         order.setLimitPay(payParam.getLimitPay() != null
                 ? String.join(",", payParam.getLimitPay()) : null);
         order.setOpenid(payParam.getOpenId());
-        order.setBarCode(payParam.getAuthCode());
         order.setProduct(payParam.getProduct());
+        // 与 Normal 对齐: 容器冗余 relationOrderNo, 供 ContainerFieldResolver / 管理展示
+        order.setRelationOrderNo(order.getOrderNo());
         gatewayPayOrderManager.updateById(order);
         return trade;
     }
@@ -170,9 +171,11 @@ public class GatewayPayHandleService {
             trade.setPayTime(result.getFinishTime());
         }
         trade.setOutOrderNo(result.getOutOrderNo());
-        // 回执与 payBody 写容器, 由 payAfterHandel 统一处理
+        // 回执与 payBody 写容器, 由 payAfterHandel 统一处理(内部 reload 容器)
         payUniHandleService.payAfterHandel(trade, result);
-        return this.buildResult(order, trade);
+        // 必须 reload: payAfterHandel 写的是另一份实体, 入参 order 无 payBody
+        GatewayPayOrder latest = gatewayPayOrderManager.findById(order.getId()).orElse(order);
+        return this.buildResult(latest, trade);
     }
 
     private void fillRouteOnOrder(GatewayPayOrder order, NormalPayParam payParam, String scene, String device) {
@@ -211,6 +214,8 @@ public class GatewayPayHandleService {
         payParam.setNotifyUrl(order.getNotifyUrl());
         payParam.setReturnUrl(order.getReturnUrl());
         payParam.setAttach(order.getAttach());
+        // 预下单写入的通道扩展参数, 与 Normal 容器透传一致
+        payParam.setExtraParam(order.getExtraParam());
         payParam.setExpiredTime(order.getExpiredTime());
         payParam.setClientIp(StrUtil.blankToDefault(clientIp, order.getClientIp()));
         payParam.setGoodsDetail(order.getGoodsDetail());