diff --git a/internal/client/client.go b/internal/client/client.go
index e69474f..b875e66 100644
--- a/internal/client/client.go
+++ b/internal/client/client.go
@@ -656,10 +656,7 @@ func (c *DouyuClient) XiaodianAssets(cookie string) (types.XiaodianAssets, error
 	if areaID <= 0 {
 		areaID = 1
 	}
-	platID := parseXiaodianInt(string(role.PlatID))
-	if platID <= 0 {
-		platID = 1
-	}
+	platID := parseXiaodianOptionalInt(string(role.PlatID), 1)
 	coupons, err := c.xiaodianAsset(cookie, role, areaID, platID, "banlanceInfo", "pay.midas.dq.get.ttpp", "balance", true)
 	if err != nil {
 		return types.XiaodianAssets{}, err
@@ -694,10 +691,7 @@ func (c *DouyuClient) XiaodianRole(cookie string) (types.XiaodianRole, error) {
 	if areaID <= 0 {
 		areaID = 1
 	}
-	platID := parseXiaodianInt(string(role.PlatID))
-	if platID <= 0 {
-		platID = 1
-	}
+	platID := parseXiaodianOptionalInt(string(role.PlatID), 1)
 	result := types.XiaodianRole{
 		Success:  true,
 		RoleID:   string(role.RoleID),
@@ -908,7 +902,7 @@ func (c *DouyuClient) xiaodianAsset(cookie string, role xiaodianRoleContext, are
 	query.Set("_act_id", c.Activity.ActID)
 	query.Set("_sid", "6")
 	if withTime {
-		query.Set("_time", strconv.FormatInt(time.Now().Unix(), 10))
+		query.Set("_time", strconv.FormatInt(time.Now().UnixMilli(), 10))
 	} else {
 		query.Set("coin_type", "1")
 	}
@@ -938,6 +932,20 @@ func parseXiaodianInt(value string) int {
 	return parsed
 }
 
+// parseXiaodianOptionalInt 保留接口明确返回的 0；只有缺失或非法值才回退。
+// platId=0 是合法的 iOS 平台标识，不能用 <=0 判断为缺失。
+func parseXiaodianOptionalInt(value string, fallback int) int {
+	value = strings.TrimSpace(value)
+	if value == "" {
+		return fallback
+	}
+	parsed, err := strconv.Atoi(value)
+	if err != nil {
+		return fallback
+	}
+	return parsed
+}
+
 // Score 查询账号积分余额。不同活动的积分接口方法/路径不同：
 // 和平手册用 POST /japi/oms/web/peace/credit/balance；
 // 电竞手册用 GET /wgapi/ordnc/activity/peacematch/score/balance。
diff --git a/internal/client/client_test.go b/internal/client/client_test.go
index fe3180d..e77f4c9 100644
--- a/internal/client/client_test.go
+++ b/internal/client/client_test.go
@@ -147,10 +147,16 @@ func TestProductsAutomaticallyResolvesXiaodianRoleAndPaginates(t *testing.T) {
 			if got := r.URL.Query().Get("_act_id"); got != "46195" {
 				t.Errorf("_act_id = %q", got)
 			}
-			_, _ = w.Write([]byte(`var info = {"gameOpenId":"openid","roleId":1192083858,"roleName":"测试角色","type":"qq","area":1};`))
+			_, _ = w.Write([]byte(`var info = {"gameOpenId":"openid","roleId":1192083858,"roleName":"测试角色","type":"qq","area":1,"platId":0};`))
 		case "/role/":
+			if got := r.URL.Query().Get("plat"); got != "0" {
+				t.Errorf("plat = %q, want iOS platform 0", got)
+			}
 			switch r.URL.Query().Get("_jsvar") {
 			case "banlanceInfo":
+				if got := r.URL.Query().Get("_time"); len(got) != 13 {
+					t.Errorf("_time = %q, want millisecond timestamp", got)
+				}
 				_, _ = w.Write([]byte(`var banlanceInfo={"balance":8800};`))
 			case "jbInfos":
 				_, _ = w.Write([]byte(`var jbInfos={"jb2":"36"};`))
@@ -236,7 +242,7 @@ func TestProductsAutomaticallyResolvesXiaodianRoleAndPaginates(t *testing.T) {
 		t.Fatalf("资产 = %#v", assets)
 	}
 	role, err := cli.XiaodianRole("acf_uid=uid; acf_stk=stk; acf_ltkid=ltkid")
-	if err != nil || role.RoleName != "测试角色" || role.AreaID != 2 {
+	if err != nil || role.RoleName != "测试角色" || role.AreaID != 2 || role.PlatID != 0 {
 		t.Fatalf("角色 = %#v, err=%v", role, err)
 	}
 }
diff --git a/internal/types/types.go b/internal/types/types.go
index b2cb020..fbb0cb9 100644
--- a/internal/types/types.go
+++ b/internal/types/types.go
@@ -31,8 +31,8 @@ type XiaodianRole struct {
 	RoleName string `json:"roleName,omitempty"`
 	OpenID   string `json:"openId,omitempty"`
 	Type     string `json:"type,omitempty"`
-	PlatID   int    `json:"platId,omitempty"`
-	AreaID   int    `json:"areaId,omitempty"`
+	PlatID   int    `json:"platId"`
+	AreaID   int    `json:"areaId"`
 	Error    string `json:"error,omitempty"`
 }