diff --git a/web/service/srv_playlet/playlet.go b/web/service/srv_playlet/playlet.go
index 9eb8f6e..6ba9a58 100644
--- a/web/service/srv_playlet/playlet.go
+++ b/web/service/srv_playlet/playlet.go
@@ -1613,69 +1613,22 @@ func normalizeSeoValue(seo pubdef.SeoValue) pubdef.SeoValue {
 	return seo
 }
 
-// mergePlayletSeoDescription 把管理员自定义的 SEO 描述和自动模板拼在一起。
-// 规则:
-//   - custom 为空 → 返回 autoDesc
-//   - custom 已经包含当前版本的 autoDesc → 直接返回 custom，不重复追加
-//   - custom 结尾带有旧版本的「黄豆短剧《…》…免费高清持续更新。」模板
-//     (集数/剧名变更后产生的历史尾部) → 剥离旧尾部再拼接新模板
-//   - 其它情况 → custom + autoDesc
-func mergePlayletSeoDescription(custom, autoDesc string) string {
-	custom = strings.TrimSpace(custom)
-	autoDesc = strings.TrimSpace(autoDesc)
-	if custom == "" {
-		return autoDesc
-	}
-	if autoDesc == "" {
-		return custom
-	}
-	if strings.Contains(custom, autoDesc) {
-		return custom
-	}
-	if idx := strings.LastIndex(custom, "黄豆短剧《"); idx >= 0 && strings.HasSuffix(custom, "免费高清持续更新。") {
-		prefix := strings.TrimSpace(custom[:idx])
-		if prefix == "" {
-			return autoDesc
-		}
-		return prefix + autoDesc
-	}
-	return custom + autoDesc
-}
-
-// stripPlayletSeoAutoTemplate 从 SeoInfo.Description 中剥离自动模板部分，只保留管理员自定义。
-// 用于把展示用的 merged 字符串回写成「纯自定义」存库。
-func stripPlayletSeoAutoTemplate(merged, autoDesc string) string {
-	merged = strings.TrimSpace(merged)
-	autoDesc = strings.TrimSpace(autoDesc)
-	if merged == "" || autoDesc == "" {
-		return merged
-	}
-	if merged == autoDesc {
-		return ""
-	}
-	if strings.HasSuffix(merged, autoDesc) {
-		return strings.TrimSpace(strings.TrimSuffix(merged, autoDesc))
-	}
-	if idx := strings.LastIndex(merged, "黄豆短剧《"); idx >= 0 && strings.HasSuffix(merged, "免费高清持续更新。") {
-		return strings.TrimSpace(merged[:idx])
-	}
-	return merged
-}
-
 func applyPlayletDescription(doc *playletmod.Playlet) {
 	if doc == nil {
 		return
 	}
 	autoDesc := playletmod.BuildPlayletDescription(doc.PlayName, doc.Title, doc.TotalEpisode)
-	if autoDesc == "" {
+	// Description = 简介(Desc) + 自动模板,Playlet.Description 与 SeoInfo.Description 始终一致。
+	merged := strings.TrimSpace(doc.Desc) + autoDesc
+	if merged == "" {
 		return
 	}
-	// 先剥离历史模板,得到纯自定义,再拼接当前模板,同一份合并值同时写入
-	// Playlet.Description 和 SeoInfo.Description,保证两个字段始终一致。
-	custom := stripPlayletSeoAutoTemplate(doc.SeoInfo.Description, autoDesc)
-	merged := mergePlayletSeoDescription(custom, autoDesc)
 	doc.Description = merged
 	doc.SeoInfo.Description = merged
+	// SEO 标题跟随 Playlet.Title 同步。
+	if title := strings.TrimSpace(doc.Title); title != "" {
+		doc.SeoInfo.Title = title
+	}
 }
 
 func applyPlayletDescriptionOnUpdate(exist *playletmod.Playlet, req *proto.PlayletUpdateReq, setDoc bson.M) {
@@ -1695,9 +1648,18 @@ func applyPlayletDescriptionOnUpdate(exist *playletmod.Playlet, req *proto.Playl
 		totalEpisode = *req.TotalEpisode
 	}
 	autoDesc := playletmod.BuildPlayletDescription(playName, title, totalEpisode)
-	if autoDesc == "" {
+
+	// 简介(Desc) 作为自定义描述的唯一源,取请求值或历史值,不读取被存储的 SeoInfo.Description,
+	// 避免多次保存堆叠。
+	desc := strings.TrimSpace(exist.Desc)
+	if req.Desc != nil {
+		desc = strings.TrimSpace(*req.Desc)
+	}
+	merged := desc + autoDesc
+	if merged == "" {
 		return
 	}
+
 	seo := exist.SeoInfo
 	if req.SeoInfo != nil {
 		if current, ok := setDoc["seoInfo"].(pubdef.SeoValue); ok {
@@ -1707,10 +1669,11 @@ func applyPlayletDescriptionOnUpdate(exist *playletmod.Playlet, req *proto.Playl
 		}
 	}
 	seo = normalizeSeoValue(seo)
-	// 先剥离历史/当前模板得到纯自定义,再拼接当前模板,同一份合并值写入两个字段。
-	custom := stripPlayletSeoAutoTemplate(seo.Description, autoDesc)
-	merged := mergePlayletSeoDescription(custom, autoDesc)
+	// 每次 description 更新 → SEO 描述、SEO 标题同步。
 	seo.Description = merged
+	if title != "" {
+		seo.Title = title
+	}
 	setDoc["seoInfo"] = seo
 	setDoc[playletmod.FN.Playlet.Description] = merged
 }