diff --git a/backend/src/views/user/components/WechatBindCard.vue b/backend/src/views/user/components/WechatBindCard.vue
index c5cc983..c4be9d4 100644
--- a/backend/src/views/user/components/WechatBindCard.vue
+++ b/backend/src/views/user/components/WechatBindCard.vue
@@ -29,8 +29,8 @@
     <div v-else class="bind-box">
       <p class="tip">绑定微信后，可通过公众号接收系统提醒与公告推送。</p>
       <el-steps :active="bindStep" simple class="bind-steps">
-        <el-step title="扫码关注公众号" />
-        <el-step title="公众号回复验证码" />
+        <el-step title="关注公众号" />
+        <el-step title="获取验证码（扫码或发送「验证码」）" />
         <el-step title="输入验证码完成绑定" />
       </el-steps>
       <div class="bind-area">
@@ -45,7 +45,7 @@
           <el-button type="primary" size="small" :loading="confirming" @click="handleConfirm">
             完成绑定
           </el-button>
-          <p class="tip">扫码关注后公众号会自动回复 6 位验证码（{{ ttlText }}）。</p>
+          <p class="tip">两种方式任选：① 扫描左侧二维码（未关注会自动关注）；② 在公众号内发送「验证码」。都会回复 6 位验证码（{{ ttlText }}），在上方输入即可绑定。</p>
         </div>
       </div>
     </div>
@@ -133,10 +133,7 @@ const handleStart = async () => {
 };
 
 const handleConfirm = async () => {
-  if (!scene.value) {
-    ElMessage.warning("请先获取绑定二维码并扫码关注");
-    return;
-  }
+  // scene 可为空：在公众号内发送「验证码」获取时无需二维码，后端按验证码认领会话
   if (!code.value.trim()) {
     ElMessage.warning("请输入公众号回复的验证码");
     return;
diff --git a/go/controllers/backend_mcp_server.go b/go/controllers/backend_mcp_server.go
index 8ee8929..ea47f26 100644
--- a/go/controllers/backend_mcp_server.go
+++ b/go/controllers/backend_mcp_server.go
@@ -83,7 +83,7 @@ func (p *mcpServerPayload) validate() error {
 			return fmt.Errorf("请填写服务地址 URL")
 		}
 	default:
-		return fmt.Errorf("不支持的传输类型: %s（可选 stdio/http/sse）")
+		return fmt.Errorf("不支持的传输类型: %s（可选 stdio/http/sse）", p.Transport)
 	}
 	return nil
 }
diff --git a/go/controllers/backend_wechat_mp.go b/go/controllers/backend_wechat_mp.go
index 502d612..a9a8354 100644
--- a/go/controllers/backend_wechat_mp.go
+++ b/go/controllers/backend_wechat_mp.go
@@ -142,13 +142,24 @@ func (c *BackendWechatMpController) BindConfirm() {
 		c.jsonErr(400, 400, "请输入公众号返回的验证码")
 		return
 	}
-	follower, err := wechatmp.ConfirmVerifyCode(
-		models.WechatBindTypeTenantUser,
-		uint64(claims.UserID),
-		uint64(claims.TenantId),
-		p.Scene,
-		p.Code,
-	)
+	var follower *models.WechatMpFollower
+	if strings.TrimSpace(p.Scene) == "" {
+		// 未展示二维码（在公众号内发送「验证码」获取）：按验证码认领待认领会话
+		follower, err = wechatmp.ConfirmVerifyCodeByCode(
+			models.WechatBindTypeTenantUser,
+			uint64(claims.UserID),
+			uint64(claims.TenantId),
+			p.Code,
+		)
+	} else {
+		follower, err = wechatmp.ConfirmVerifyCode(
+			models.WechatBindTypeTenantUser,
+			uint64(claims.UserID),
+			uint64(claims.TenantId),
+			p.Scene,
+			p.Code,
+		)
+	}
 	if err != nil {
 		c.jsonErr(400, 400, err.Error())
 		return
diff --git a/go/controllers/platform_wechat_mp.go b/go/controllers/platform_wechat_mp.go
index bfc068c..86f18b0 100644
--- a/go/controllers/platform_wechat_mp.go
+++ b/go/controllers/platform_wechat_mp.go
@@ -257,7 +257,13 @@ func (c *PlatformWechatMpController) BindConfirm() {
 		c.jsonErr(400, 400, "请输入公众号返回的验证码")
 		return
 	}
-	follower, err := wechatmp.ConfirmVerifyCode(models.WechatBindTypePlatformUser, uint64(claims.UserID), 0, p.Scene, p.Code)
+	var follower *models.WechatMpFollower
+	if strings.TrimSpace(p.Scene) == "" {
+		// 未展示二维码（在公众号内发送「验证码」获取）：按验证码认领待认领会话
+		follower, err = wechatmp.ConfirmVerifyCodeByCode(models.WechatBindTypePlatformUser, uint64(claims.UserID), 0, p.Code)
+	} else {
+		follower, err = wechatmp.ConfirmVerifyCode(models.WechatBindTypePlatformUser, uint64(claims.UserID), 0, p.Scene, p.Code)
+	}
 	if err != nil {
 		c.jsonErr(400, 400, err.Error())
 		return
diff --git a/go/services/wechatmp/bind.go b/go/services/wechatmp/bind.go
index ae3fd9a..11f7c9b 100644
--- a/go/services/wechatmp/bind.go
+++ b/go/services/wechatmp/bind.go
@@ -26,7 +26,7 @@ var (
 	ErrSceneNotScanned = errors.New("尚未检测到扫码关注，请先使用微信扫码并关注公众号")
 	ErrCodeUsed        = errors.New("该验证码已使用，请重新获取二维码")
 	ErrCodeExpired     = errors.New("二维码已过期，请重新获取")
-	ErrCodeMismatch    = errors.New("验证码不正确")
+	ErrCodeNotPending  = errors.New("验证码不正确或已过期：请在公众号内发送「验证码」重新获取")
 	ErrSceneInvalid    = errors.New("二维码无效或已失效")
 )
 
@@ -105,7 +105,9 @@ func ConfirmVerifyCode(bindType string, bindID, bindTid uint64, scene, code stri
 		return nil, ErrCodeExpired
 	}
 	if strings.TrimSpace(code) != row.Code {
-		return nil, ErrCodeMismatch
+		// 验证码不属于该二维码会话（用户在公众号内单独发送「验证码」取得）：
+		// 回退按验证码认领，保证「不扫码直接取码」的绑定路径可用
+		return ConfirmVerifyCodeByCode(bindType, bindID, bindTid, code)
 	}
 	now := time.Now()
 	if _, err := models.Orm.QueryTable(new(models.WechatMpVerifyCode)).
@@ -116,6 +118,78 @@ func ConfirmVerifyCode(bindType string, bindID, bindTid uint64, scene, code stri
 	return BindFollower(row.OpenID, bindType, bindID, bindTid)
 }
 
+// CreateOpenIDVerify 由公众号消息发起绑定会话：openid 已知（消息发送者），
+// 绑定目标（bind_type/bind_id）为空，待系统页面登录用户输入验证码后认领。
+// 与扫码会话共用一张表，区别仅在发起方与归属信息。
+func CreateOpenIDVerify(openid string, ttl time.Duration) (*models.WechatMpVerifyCode, error) {
+	openid = strings.TrimSpace(openid)
+	if openid == "" {
+		return nil, errors.New("openid 为空")
+	}
+	if ttl <= 0 {
+		ttl = DefaultVerifyTTL
+	}
+	now := time.Now()
+	expireAt := now.Add(ttl)
+	row := &models.WechatMpVerifyCode{
+		Scene:      randomScene(),
+		Code:       randomCode6(),
+		OpenID:     openid,
+		Status:     models.WechatVerifyStatusScanned, // 微信号已知，等同「已扫码待核销」
+		ExpireAt:   &expireAt,
+		CreateTime: now,
+		UpdateTime: &now,
+	}
+	if _, err := models.Orm.Insert(row); err != nil {
+		return nil, err
+	}
+	return row, nil
+}
+
+// ConfirmVerifyCodeByCode 按验证码认领「公众号发起」的绑定会话（系统页面未展示二维码时使用）：
+// 匹配最近一条 bind_id=0、openid 非空、未核销、未过期的会话，用 CAS 更新占位后绑定到当前账号。
+// 只认领无归属的会话，不会影响他人扫码发起的会话，避免绑定串号。
+func ConfirmVerifyCodeByCode(bindType string, bindID, bindTid uint64, code string) (*models.WechatMpFollower, error) {
+	code = strings.TrimSpace(code)
+	if code == "" {
+		return nil, ErrCodeNotPending
+	}
+	var row models.WechatMpVerifyCode
+	err := models.Orm.QueryTable(new(models.WechatMpVerifyCode)).
+		Filter("code", code).
+		Filter("bind_id", 0).
+		Filter("openid__ne", "").
+		Filter("status", models.WechatVerifyStatusScanned).
+		Filter("expire_at__gt", time.Now()).
+		OrderBy("-id").
+		One(&row)
+	if err == orm.ErrNoRows {
+		return nil, ErrCodeNotPending
+	}
+	if err != nil {
+		return nil, err
+	}
+	now := time.Now()
+	// CAS：仅当仍是「待核销」时更新，避免同一验证码被并发认领
+	affected, uerr := models.Orm.QueryTable(new(models.WechatMpVerifyCode)).
+		Filter("id", row.ID).
+		Filter("status", models.WechatVerifyStatusScanned).
+		Update(map[string]interface{}{
+			"bind_type": bindType,
+			"bind_id":   bindID,
+			"bind_tid":  bindTid,
+			"status":    models.WechatVerifyStatusUsed,
+			"update_time": now,
+		})
+	if uerr != nil {
+		return nil, uerr
+	}
+	if affected == 0 {
+		return nil, ErrCodeUsed
+	}
+	return BindFollower(row.OpenID, bindType, bindID, bindTid)
+}
+
 // BindFollower 将 openid 绑定到指定账号。
 // 同一账号只保留一个微信：旧的 openid 绑定关系会被清除。
 func BindFollower(openid, bindType string, bindID, bindTid uint64) (*models.WechatMpFollower, error) {
@@ -198,6 +272,47 @@ func GetFollowerByUser(bindType string, bindID uint64) (*models.WechatMpFollower
 	return &row, nil
 }
 
+// GetFollowerByOpenID 按 openid 查询粉丝记录（不存在返回 nil, nil）
+func GetFollowerByOpenID(openid string) (*models.WechatMpFollower, error) {
+	openid = strings.TrimSpace(openid)
+	if openid == "" {
+		return nil, nil
+	}
+	var row models.WechatMpFollower
+	err := models.Orm.QueryTable(new(models.WechatMpFollower)).Filter("openid", openid).One(&row)
+	if err == orm.ErrNoRows {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &row, nil
+}
+
+// LatestPendingVerifyByOpenID 查询该微信号最近一条「未核销且未过期」的绑定会话，用于重发验证码。
+// 命中范围：扫码会话（扫码时写入 openid）与公众号内发起的待认领会话（创建即带 openid）。
+// 他人发起的、尚未扫码的会话 openid 为空，不会被命中，避免绑定串号。
+func LatestPendingVerifyByOpenID(openid string) (*models.WechatMpVerifyCode, error) {
+	openid = strings.TrimSpace(openid)
+	if openid == "" {
+		return nil, nil
+	}
+	var row models.WechatMpVerifyCode
+	err := models.Orm.QueryTable(new(models.WechatMpVerifyCode)).
+		Filter("openid", openid).
+		Filter("status__in", models.WechatVerifyStatusWaiting, models.WechatVerifyStatusScanned).
+		Filter("expire_at__gt", time.Now()).
+		OrderBy("-id").
+		One(&row)
+	if err == orm.ErrNoRows {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &row, nil
+}
+
 // UpsertSubscribe 关注事件：创建/恢复粉丝记录
 func UpsertSubscribe(openid string, at time.Time) (*models.WechatMpFollower, error) {
 	openid = strings.TrimSpace(openid)
@@ -285,7 +400,7 @@ func HandleInbound(cfg *Config, msg *InboundMessage) string {
 			if scene != "" {
 				return handleScanScene(cfg, scene, openid)
 			}
-			return "欢迎关注云泽平台！\n如需接收系统提醒、公告推送，请回到系统页面点击「绑定微信」，使用微信扫码获取专属验证码。"
+			return "欢迎关注云泽平台！\n如需接收系统提醒、公告推送，请回到系统页面点击「绑定微信」，使用微信扫码获取专属验证码；已扫码但未收到时可发送「验证码」重新获取。"
 		case "scan":
 			return handleScanScene(cfg, strings.TrimSpace(msg.EventKey), openid)
 		case "unsubscribe":
@@ -293,11 +408,58 @@ func HandleInbound(cfg *Config, msg *InboundMessage) string {
 			return ""
 		}
 	case "text":
-		return "如需绑定账号：请回到系统页面点击「绑定微信」，展示专属二维码后使用微信扫码，公众号会自动回复验证码。\n绑定成功后即可接收系统提醒、公告推送。"
+		return handleTextIntent(openid, msg.Content)
 	}
 	return ""
 }
 
+// handleTextIntent 处理公众号文本消息：
+//   - 发送「验证码」等关键词：返回该微信号的验证码（复用未核销会话；没有则在公众号侧
+//     新建「待认领」会话），用户回系统页面输入即完成绑定，无需先扫码；
+//   - 其余文本：给出绑定引导。
+func handleTextIntent(openid, content string) string {
+	if !isBindKeyword(strings.TrimSpace(content)) {
+		return textBindGuide()
+	}
+	// 1) 复用该微信号未核销、未过期的会话（扫码会话或此前公众号发起的会话）
+	row, err := LatestPendingVerifyByOpenID(openid)
+	if err != nil || row == nil {
+		// 2) 公众号侧直接发起：新建待认领会话，绑定目标由系统页面登录用户输入验证码后认领
+		row, err = CreateOpenIDVerify(openid, 0)
+		if err != nil {
+			return "系统繁忙，请稍后重新发送。"
+		}
+	}
+	minutes := 1
+	if row.ExpireAt != nil {
+		if m := int(time.Until(*row.ExpireAt).Minutes()); m > 1 {
+			minutes = m
+		}
+	}
+	tip := ""
+	if f, ferr := GetFollowerByOpenID(openid); ferr == nil && f != nil && strings.TrimSpace(f.BindType) != "" {
+		tip = "\n提示：当前微信已绑定账号，输入本验证码将更换绑定。"
+	}
+	return fmt.Sprintf("您的验证码是：%s\n请在系统页面「绑定微信」处输入完成绑定（%d 分钟内有效）。%s", row.Code, minutes, tip)
+}
+
+// isBindKeyword 判断文本是否为「获取验证码 / 绑定」类意图
+func isBindKeyword(text string) bool {
+	if text == "" {
+		return false
+	}
+	switch text {
+	case "验证码", "获取验证码", "重新获取验证码", "绑定", "绑定微信", "码":
+		return true
+	}
+	return strings.Contains(text, "验证码")
+}
+
+// textBindGuide 非关键词文本的绑定引导
+func textBindGuide() string {
+	return "如需绑定账号：请在系统页面点击「绑定微信」，然后任选一种方式——① 扫描页面上的二维码；② 直接在本公众号发送「验证码」。\n两种方式都会回复 6 位验证码，回到系统页面输入即可完成绑定。"
+}
+
 // handleScanScene 扫码（关注/已关注）后的统一处理：写入验证码会话 + 回复验证码
 func handleScanScene(cfg *Config, scene, openid string) string {
 	if strings.TrimSpace(scene) == "" {
diff --git a/platform/src/views/system/platformsettings/components/notificationSettings.vue b/platform/src/views/system/platformsettings/components/notificationSettings.vue
index ccc8b7c..44b4df4 100644
--- a/platform/src/views/system/platformsettings/components/notificationSettings.vue
+++ b/platform/src/views/system/platformsettings/components/notificationSettings.vue
@@ -410,8 +410,8 @@
               </template>
               <template v-else>
                 <el-steps :active="bindStep" simple class="bind-steps">
-                  <el-step title="微信扫码关注" />
-                  <el-step title="公众号回复验证码" />
+                  <el-step title="关注公众号" />
+                  <el-step title="获取验证码（扫码或发送「验证码」）" />
                   <el-step title="输入验证码完成绑定" />
                 </el-steps>
                 <div class="bind-area">
@@ -422,7 +422,7 @@
                   <div class="bind-form">
                     <el-input v-model="bindCode" placeholder="输入公众号回复的验证码" maxlength="8" class="bind-input" />
                     <el-button type="primary" :loading="bindConfirming" @click="confirmBind">完成绑定</el-button>
-                    <p class="form-tip">扫码关注公众号后，公众号会自动回复 6 位验证码（{{ bindTtlText }}）。</p>
+                    <p class="form-tip">两种方式任选：① 微信扫描左侧二维码（未关注会自动关注）；② 在公众号内直接发送「验证码」。都会回复 6 位验证码（{{ bindTtlText }}），在上方输入即可完成绑定。</p>
                   </div>
                 </div>
               </template>
@@ -1101,10 +1101,7 @@ const startBind = async () => {
 };
 
 const confirmBind = async () => {
-  if (!bindScene.value) {
-    ElMessage.warning("请先获取绑定二维码");
-    return;
-  }
+  // scene 可为空：在公众号内发送「验证码」获取时无需二维码，后端按验证码认领会话
   if (!bindCode.value.trim()) {
     ElMessage.warning("请输入公众号回复的验证码");
     return;
@@ -1292,10 +1289,6 @@ watch(activeSubTab, (tab) => {
   overflow: hidden;
 }
 
-.sub-tabs-container {
-  /* height: 520px; */
-}
-
 /* Make tabs look extra sleek */
 :deep(.el-tabs--left .el-tabs__header.is-left) {
   margin-right: 0;