diff --git a/docs/daily/2026-09-24-change-list.md b/docs/daily/2026-09-24-change-list.md
index 28d4d18..f2ac968 100644
--- a/docs/daily/2026-09-24-change-list.md
+++ b/docs/daily/2026-09-24-change-list.md
@@ -77,7 +77,6 @@
 
 - Spark Messenger 全页面接入检查
 
-
 ## 14:48 — 修复 make lint / make test
 
 ### 概要
@@ -130,6 +129,14 @@ make install-git-hooks   # 本机只需一次
 - 表增加 `auth_type` / `contact`；Admin list 支持 `?auth_type=login|guest`；popadmin App反馈页加筛选下拉
 - OpenAPI 同步说明
 
+## 14:53 — Android 白噪音对照后补音乐公开 API
+
+### 概要
+
+- 对照 `WhiteNoiseJSPPOldAndroid`：音乐主路径仍走欢休 `app.huanxiu.vip`；IM/登录/支付多为旧 JSPP TCP protobuf。
+- 在 Spark V3 风格下补齐迁端缺口：单曲详情、分区嵌套列表、`requireMember` 筛选；公开路由免登录。
+- 顺手修复先前好友拒绝用例测试（Accept 双返回值、测试邮箱）。
+
 ### 变更范围
 
 | 类型 | 说明 |
@@ -178,6 +185,35 @@ make install-git-hooks   # 本机只需一次
 - 用户上传路径：凭证 size + 发帖声明宽高/体积软检测（默认可日志，可拒收）。
 - 机器人配图：入库对象存储前压到最长边 ≤1080；视频路径 ≤720（ffmpeg）。
 
+| 功能 | 音乐公开读 API 增强 |
+| 文档 | OpenAPI music 路径与 schema |
+| 修复 | friend Reject 单测 |
+
+### 主要文件
+
+- `internal/module/music/entity/track.go` — GroupedPlaylist / PlaylistGroup
+- `internal/module/music/logic/service.go` — GetPublic、PlaylistGrouped、PlaylistQuery
+- `internal/transport/http/handler/music/handler.go`、`router.go`、`auth.go`
+- `internal/transport/http/docs/openapi.yaml`
+- `internal/module/music/logic/service_test.go`、`friend/logic/friend_test.go`
+
+### 验证
+
+- `go test ./...`：通过（本机无 `make`；`golangci-lint` 与 Go 1.27 export data 不兼容，未跑 lint）
+- `music/logic` coverage：74.7%
+
+### 关联
+
+- 用户：对照 Android 补全 spark-server 缺失 API（不 commit/push）
+
+## 15:20 — 多广场实例 + 分类筛选
+
+### 概要
+
+- 同一套广场能力按 `channel` 隔离数据：`square` / `squarenovel` / `squaresteps` / `squarehealth`。
+- 各广场支持分类 Tab：推荐/最新/热门/附近（排序）+ 搞笑/美女（帖标签）；附近为 lat/lng 曼哈顿距离 stub。
+- 发帖/点赞/评论/通知水位均带 channel；保留原 `/v1/square/...` 路径。
+
 ### 变更范围
 
 | 类型 | 说明 |
@@ -238,3 +274,25 @@ make install-git-hooks   # 本机只需一次
 ### 关联
 
 - 任务：发现页顶部接入同开发者应用列表（stash 合并进 main）
+
+| 功能 | 多广场 + Feed `category` 筛选 |
+| 迁移 | `0031_square_channel_category.sql` |
+| 文档 | OpenAPI `{square_channel}` 路径；meta 枚举 |
+
+### 主要文件
+
+- `migrations/0031_square_channel_category.sql` — posts/notices/notice_state 加 channel/category
+- `internal/module/square/entity/channel.go` — Channel / Category 枚举
+- `internal/module/square/logic/*`、`model/*` — channel 隔离与 Feed 排序
+- `internal/transport/http/handler/square`、`router.go` — 四前缀同路由 + `/categories`
+- `internal/transport/http/docs/openapi.yaml`、`meta`、`i18n`
+
+### 验证
+
+- `go run ./cmd/migrate -config configs/config.yaml`：通过
+- `go test ./...`：通过（本机无 `make`；golangci-lint 与 Go 1.27 不兼容）
+- `square/logic` coverage：77.5%
+
+### 关联
+
+- 用户：spark-server 多广场 + 分类筛选（不 commit/push）
diff --git a/internal/module/client/entity/types.go b/internal/module/client/entity/types.go
index b6e7768..dcd8350 100644
--- a/internal/module/client/entity/types.go
+++ b/internal/module/client/entity/types.go
@@ -44,9 +44,11 @@ type Feedback struct {
 // SubscriptionPlan is one week/month/quarter/year card.
 // IAP product_id placeholders: health.wyrs365.com.vip.{week|month|quarter|year}
 // (ASC App 6815533078 · Team 49S9UL5MN4 · Bundle health.wyrs365.com).
+// PackageName 为空表示默认兜底；客户端传 packageName / X-Wyrs-Package 时优先精确匹配。
 type SubscriptionPlan struct {
 	PlanID       string `json:"plan_id"`
 	Lang         string `json:"lang"`
+	PackageName  string `json:"package_name,omitempty"`
 	Title        string `json:"title"`
 	Subtitle     string `json:"subtitle"`
 	PriceDisplay string `json:"price_display"`
diff --git a/internal/module/client/logic/service.go b/internal/module/client/logic/service.go
index 87fd00c..5e2f237 100644
--- a/internal/module/client/logic/service.go
+++ b/internal/module/client/logic/service.go
@@ -22,8 +22,8 @@ type Repository interface {
 	InsertFeedback(ctx context.Context, f *entity.Feedback) error
 	ListFeedback(ctx context.Context, page, size int, authType string) ([]entity.Feedback, int64, error)
 	UpdateFeedbackStatus(ctx context.Context, id int64, status string) error
-	ListPlans(ctx context.Context, lang string) ([]entity.SubscriptionPlan, error)
-	ListPlansAdmin(ctx context.Context, lang string) ([]entity.SubscriptionPlan, error)
+	ListPlans(ctx context.Context, lang, packageName string) ([]entity.SubscriptionPlan, error)
+	ListPlansAdmin(ctx context.Context, lang, packageName string) ([]entity.SubscriptionPlan, error)
 	UpsertPlan(ctx context.Context, p *entity.SubscriptionPlan) error
 	GetPasswordHash(ctx context.Context, userID int64) (string, error)
 	SetPasswordHash(ctx context.Context, userID int64, hash string) error
@@ -183,16 +183,17 @@ func (s *Service) UpdateFeedbackStatus(ctx context.Context, id int64, status str
 	return s.repo.UpdateFeedbackStatus(ctx, id, status)
 }
 
-func (s *Service) SubscriptionPlans(ctx context.Context) (*entity.SubscriptionConfig, error) {
+func (s *Service) SubscriptionPlans(ctx context.Context, packageName string) (*entity.SubscriptionConfig, error) {
 	lang := normalizeLang(reqctx.Language(ctx))
+	packageName = strings.TrimSpace(packageName)
 	headline, sub := subscriptionCopy(lang)
 	if s.repo != nil {
-		plans, err := s.repo.ListPlans(ctx, lang)
+		plans, err := s.repo.ListPlans(ctx, lang, packageName)
 		if err == nil && len(plans) > 0 {
 			return &entity.SubscriptionConfig{Headline: headline, Subheadline: sub, Plans: plans}, nil
 		}
 		if lang != string(i18n.ZhCN) {
-			plans, err = s.repo.ListPlans(ctx, string(i18n.ZhCN))
+			plans, err = s.repo.ListPlans(ctx, string(i18n.ZhCN), packageName)
 			if err == nil && len(plans) > 0 {
 				return &entity.SubscriptionConfig{Headline: headline, Subheadline: sub, Plans: plans}, nil
 			}
@@ -201,11 +202,11 @@ func (s *Service) SubscriptionPlans(ctx context.Context) (*entity.SubscriptionCo
 	return &entity.SubscriptionConfig{Headline: headline, Subheadline: sub, Plans: defaultPlans(lang)}, nil
 }
 
-func (s *Service) ListPlansAdmin(ctx context.Context, lang string) ([]entity.SubscriptionPlan, error) {
+func (s *Service) ListPlansAdmin(ctx context.Context, lang, packageName string) ([]entity.SubscriptionPlan, error) {
 	if s.repo == nil {
 		return defaultPlans(normalizeLang(lang)), nil
 	}
-	return s.repo.ListPlansAdmin(ctx, strings.TrimSpace(lang))
+	return s.repo.ListPlansAdmin(ctx, strings.TrimSpace(lang), strings.TrimSpace(packageName))
 }
 
 func (s *Service) UpsertPlanAdmin(ctx context.Context, p *entity.SubscriptionPlan) error {
@@ -217,6 +218,7 @@ func (s *Service) UpsertPlanAdmin(ctx context.Context, p *entity.SubscriptionPla
 	}
 	p.Lang = normalizeLang(p.Lang)
 	p.PlanID = strings.TrimSpace(p.PlanID)
+	p.PackageName = strings.TrimSpace(p.PackageName)
 	switch p.PlanID {
 	case "week", "month", "quarter", "year":
 	default:
diff --git a/internal/module/client/logic/service_test.go b/internal/module/client/logic/service_test.go
index 2abf56b..b1517c6 100644
--- a/internal/module/client/logic/service_test.go
+++ b/internal/module/client/logic/service_test.go
@@ -71,7 +71,7 @@ func (s *stubClientRepo) UpdateFeedbackStatus(_ context.Context, id int64, statu
 	return errs.ErrNotFound
 }
 
-func (s *stubClientRepo) ListPlans(_ context.Context, lang string) ([]entity.SubscriptionPlan, error) {
+func (s *stubClientRepo) ListPlans(_ context.Context, lang, packageName string) ([]entity.SubscriptionPlan, error) {
 	out := make([]entity.SubscriptionPlan, 0)
 	for i := range s.plans {
 		p := &s.plans[i]
@@ -79,19 +79,35 @@ func (s *stubClientRepo) ListPlans(_ context.Context, lang string) ([]entity.Sub
 			out = append(out, *p)
 		}
 	}
-	return out, nil
+	if packageName == "" {
+		return out, nil
+	}
+	exact := make([]entity.SubscriptionPlan, 0)
+	fallback := make([]entity.SubscriptionPlan, 0)
+	for _, p := range out {
+		if p.PackageName == packageName {
+			exact = append(exact, p)
+		} else if p.PackageName == "" {
+			fallback = append(fallback, p)
+		}
+	}
+	if len(exact) > 0 {
+		return exact, nil
+	}
+	return fallback, nil
 }
 
-func (s *stubClientRepo) ListPlansAdmin(_ context.Context, lang string) ([]entity.SubscriptionPlan, error) {
-	if lang == "" {
-		return s.plans, nil
-	}
+func (s *stubClientRepo) ListPlansAdmin(_ context.Context, lang, packageName string) ([]entity.SubscriptionPlan, error) {
 	out := make([]entity.SubscriptionPlan, 0)
 	for i := range s.plans {
 		p := &s.plans[i]
-		if p.Lang == lang {
-			out = append(out, *p)
+		if lang != "" && p.Lang != lang {
+			continue
 		}
+		if packageName != "" && p.PackageName != packageName {
+			continue
+		}
+		out = append(out, *p)
 	}
 	return out, nil
 }
@@ -167,7 +183,7 @@ func TestLegalPlansFeedbackFallback(t *testing.T) {
 	if err != nil || legal.Privacy.Title == "" || legal.Terms.Title == "" {
 		t.Fatalf("legal %+v err=%v", legal, err)
 	}
-	plans, err := svc.SubscriptionPlans(t.Context())
+	plans, err := svc.SubscriptionPlans(t.Context(), "")
 	if err != nil || len(plans.Plans) != 4 {
 		t.Fatalf("plans %+v err=%v", plans, err)
 	}
@@ -231,7 +247,7 @@ func TestClientServiceAdminAndRepo(t *testing.T) {
 	if err := svc.UpdateFeedbackStatus(ctx, 1, "closed"); err != nil {
 		t.Fatal(err)
 	}
-	adminPlans, err := svc.ListPlansAdmin(ctx, string(i18n.ZhCN))
+	adminPlans, err := svc.ListPlansAdmin(ctx, string(i18n.ZhCN), "")
 	if err != nil || len(adminPlans) != 1 {
 		t.Fatalf("plans %+v %v", adminPlans, err)
 	}
@@ -315,7 +331,7 @@ func TestDeveloperAppsAdmin(t *testing.T) {
 	if err != nil || len(apps.Items) != 0 {
 		t.Fatalf("exclude package %+v %v", apps, err)
 	}
-	cfg, err := svc.SubscriptionPlans(ctxLang(string(i18n.ZhTW)))
+	cfg, err := svc.SubscriptionPlans(ctxLang(string(i18n.ZhTW)), "")
 	if err != nil || len(cfg.Plans) == 0 {
 		t.Fatalf("plans %+v %v", cfg, err)
 	}
diff --git a/internal/module/client/model/repo.go b/internal/module/client/model/repo.go
index ca6e213..a573c4d 100644
--- a/internal/module/client/model/repo.go
+++ b/internal/module/client/model/repo.go
@@ -3,6 +3,7 @@ package model
 import (
 	"context"
 	"errors"
+	"strings"
 	"time"
 
 	"gorm.io/gorm"
@@ -50,6 +51,7 @@ func (feedbackRow) TableName() string { return "t_feedback" }
 type planRow struct {
 	PlanID       string    `gorm:"column:plan_id;primaryKey"`
 	Lang         string    `gorm:"column:lang;primaryKey"`
+	PackageName  string    `gorm:"column:package_name;primaryKey"`
 	Title        string    `gorm:"column:title"`
 	Subtitle     string    `gorm:"column:subtitle"`
 	PriceDisplay string    `gorm:"column:price_display"`
@@ -170,7 +172,7 @@ func (r *Repo) UpdateFeedbackStatus(ctx context.Context, id int64, status string
 	return r.db.WithContext(ctx).Model(&feedbackRow{}).Where("id = ?", id).Update("status", status).Error
 }
 
-func (r *Repo) ListPlans(ctx context.Context, lang string) ([]entity.SubscriptionPlan, error) {
+func (r *Repo) ListPlans(ctx context.Context, lang, packageName string) ([]entity.SubscriptionPlan, error) {
 	var rows []planRow
 	err := r.db.WithContext(ctx).
 		Where("lang = ? AND enabled = 1", lang).
@@ -179,14 +181,17 @@ func (r *Repo) ListPlans(ctx context.Context, lang string) ([]entity.Subscriptio
 	if err != nil {
 		return nil, err
 	}
-	return mapPlans(rows), nil
+	return filterPlansByPackage(mapPlans(rows), packageName), nil
 }
 
-func (r *Repo) ListPlansAdmin(ctx context.Context, lang string) ([]entity.SubscriptionPlan, error) {
-	q := r.db.WithContext(ctx).Order("lang ASC, sort_order ASC, plan_id ASC")
+func (r *Repo) ListPlansAdmin(ctx context.Context, lang, packageName string) ([]entity.SubscriptionPlan, error) {
+	q := r.db.WithContext(ctx).Order("package_name ASC, lang ASC, sort_order ASC, plan_id ASC")
 	if lang != "" {
 		q = q.Where("lang = ?", lang)
 	}
+	if packageName != "" {
+		q = q.Where("package_name = ?", packageName)
+	}
 	var rows []planRow
 	if err := q.Find(&rows).Error; err != nil {
 		return nil, err
@@ -199,7 +204,8 @@ func mapPlans(rows []planRow) []entity.SubscriptionPlan {
 	for i := range rows {
 		row := &rows[i]
 		out = append(out, entity.SubscriptionPlan{
-			PlanID: row.PlanID, Lang: row.Lang, Title: row.Title, Subtitle: row.Subtitle,
+			PlanID: row.PlanID, Lang: row.Lang, PackageName: row.PackageName,
+			Title: row.Title, Subtitle: row.Subtitle,
 			PriceDisplay: row.PriceDisplay, PriceCents: row.PriceCents, Currency: row.Currency,
 			PeriodDays: row.PeriodDays, Badge: row.Badge, SortOrder: row.SortOrder,
 			Enabled: row.Enabled, ProductID: row.ProductID,
@@ -208,12 +214,46 @@ func mapPlans(rows []planRow) []entity.SubscriptionPlan {
 	return out
 }
 
+// filterPlansByPackage：有精确包名则用之，否则回退 package_name 为空的默认档。
+func filterPlansByPackage(items []entity.SubscriptionPlan, packageName string) []entity.SubscriptionPlan {
+	packageName = strings.TrimSpace(packageName)
+	if packageName == "" {
+		// 无包名：仅返回默认兜底，避免多包混在一起
+		out := make([]entity.SubscriptionPlan, 0, len(items))
+		for _, p := range items {
+			if strings.TrimSpace(p.PackageName) == "" {
+				out = append(out, p)
+			}
+		}
+		if len(out) > 0 {
+			return out
+		}
+		return items
+	}
+	want := strings.ToLower(packageName)
+	exact := make([]entity.SubscriptionPlan, 0)
+	fallback := make([]entity.SubscriptionPlan, 0)
+	for _, p := range items {
+		pkg := strings.TrimSpace(p.PackageName)
+		if pkg != "" && strings.ToLower(pkg) == want {
+			exact = append(exact, p)
+		} else if pkg == "" {
+			fallback = append(fallback, p)
+		}
+	}
+	if len(exact) > 0 {
+		return exact
+	}
+	return fallback
+}
+
 func (r *Repo) UpsertPlan(ctx context.Context, p *entity.SubscriptionPlan) error {
 	if p == nil {
 		return errors.New("client: nil subscription plan")
 	}
 	row := planRow{
-		PlanID: p.PlanID, Lang: p.Lang, Title: p.Title, Subtitle: p.Subtitle,
+		PlanID: p.PlanID, Lang: p.Lang, PackageName: strings.TrimSpace(p.PackageName),
+		Title: p.Title, Subtitle: p.Subtitle,
 		PriceDisplay: p.PriceDisplay, PriceCents: p.PriceCents, Currency: p.Currency,
 		PeriodDays: p.PeriodDays, Badge: p.Badge, SortOrder: p.SortOrder,
 		Enabled: p.Enabled, ProductID: p.ProductID, UpdatedAt: time.Now(),
diff --git a/internal/module/meta/entity/enum.go b/internal/module/meta/entity/enum.go
index aa9bb9c..a2cd5ed 100644
--- a/internal/module/meta/entity/enum.go
+++ b/internal/module/meta/entity/enum.go
@@ -37,4 +37,6 @@ type Catalog struct {
 	MomentVisibleDays   []Item `json:"moment_visible_days"`
 	VerificationPurpose []Item `json:"verification_purpose"`
 	PhoneCarrier        []Item `json:"phone_carrier"`
+	SquareChannel       []Item `json:"square_channel"`
+	SquareCategory      []Item `json:"square_category"`
 }
diff --git a/internal/module/meta/logic/enums.go b/internal/module/meta/logic/enums.go
index 8640cd3..af0e414 100644
--- a/internal/module/meta/logic/enums.go
+++ b/internal/module/meta/logic/enums.go
@@ -38,6 +38,8 @@ func Catalog(lang i18n.Lang) *entity.Catalog {
 		MomentVisibleDays:   momentVisibleDays(lang),
 		VerificationPurpose: verificationPurpose(lang),
 		PhoneCarrier:        phoneCarrier(lang),
+		SquareChannel:       squareChannel(lang),
+		SquareCategory:      squareCategory(lang),
 	}
 }
 
diff --git a/internal/module/meta/logic/enums_square.go b/internal/module/meta/logic/enums_square.go
new file mode 100644
index 0000000..15a0f81
--- /dev/null
+++ b/internal/module/meta/logic/enums_square.go
@@ -0,0 +1,25 @@
+package logic
+
+import (
+	"spark-server/internal/module/meta/entity"
+	squareentity "spark-server/internal/module/square/entity"
+	"spark-server/internal/pkg/i18n"
+)
+
+func squareChannel(lang i18n.Lang) []entity.Item {
+	chs := squareentity.Channels()
+	vals := make([]string, 0, len(chs))
+	for _, c := range chs {
+		vals = append(vals, string(c))
+	}
+	return strSet(lang, "square_channel", vals...)
+}
+
+func squareCategory(lang i18n.Lang) []entity.Item {
+	cats := squareentity.Categories()
+	vals := make([]string, 0, len(cats))
+	for _, c := range cats {
+		vals = append(vals, string(c))
+	}
+	return strSet(lang, "square_category", vals...)
+}
diff --git a/internal/module/meta/logic/enums_test.go b/internal/module/meta/logic/enums_test.go
index 36247b4..4a2eda2 100644
--- a/internal/module/meta/logic/enums_test.go
+++ b/internal/module/meta/logic/enums_test.go
@@ -32,6 +32,12 @@ func TestCatalogValuesMatchEntity(t *testing.T) {
 	if c.MomentKind[0].Value != 1 || c.MomentVisibility[2].Name != "include" {
 		t.Fatalf("moment %+v %+v", c.MomentKind, c.MomentVisibility)
 	}
+	if len(c.SquareChannel) != 4 || c.SquareChannel[0].Value != "square" {
+		t.Fatalf("square_channel %+v", c.SquareChannel)
+	}
+	if len(c.SquareCategory) != 6 || c.SquareCategory[0].Value != "recommend" {
+		t.Fatalf("square_category %+v", c.SquareCategory)
+	}
 	if len(c.DeviceType) != 6 || c.DeviceType[0].Value != 1 || c.DeviceType[0].Name != "ios" {
 		t.Fatalf("device_type %+v", c.DeviceType)
 	}
@@ -44,7 +50,7 @@ func TestCatalogValuesMatchEntity(t *testing.T) {
 		c.RelationKind, c.FriendRequestStatus, c.FriendSource, c.ReportReason, c.GroupStatus, c.GroupRole,
 		c.MailboxEventType, c.TCPCommand, c.EnvelopeCode, c.DeviceType, c.Language, c.UploadPurpose, c.SystemKind,
 		c.MomentKind, c.MomentVisibility, c.MomentStatus, c.MomentNoticeKind, c.MomentVisibleDays,
-		c.AppID,
+		c.AppID, c.SquareChannel, c.SquareCategory,
 	} {
 		if len(items) == 0 {
 			t.Fatal("empty set")
diff --git a/internal/module/music/entity/track.go b/internal/module/music/entity/track.go
index e455ff9..6ad2482 100644
--- a/internal/module/music/entity/track.go
+++ b/internal/module/music/entity/track.go
@@ -52,3 +52,18 @@ type Playlist struct {
 	Categories           []Category `json:"categories"`
 	MemberPreviewSeconds int        `json:"memberPreviewSeconds"`
 }
+
+// PlaylistGroup is one category (zone) with its enabled tracks.
+// Maps to HuanXiu-style zoneAndZoneMusicList entries for Spark clients.
+type PlaylistGroup struct {
+	CategoryID int64   `json:"categoryId"`
+	Name       string  `json:"name"`
+	ParentID   *int64  `json:"parentId"`
+	Items      []Track `json:"items"`
+}
+
+// GroupedPlaylist is categories-with-tracks for home tab migration.
+type GroupedPlaylist struct {
+	Groups               []PlaylistGroup `json:"groups"`
+	MemberPreviewSeconds int             `json:"memberPreviewSeconds"`
+}
diff --git a/internal/module/music/logic/service.go b/internal/module/music/logic/service.go
index ee786ac..48cd511 100644
--- a/internal/module/music/logic/service.go
+++ b/internal/module/music/logic/service.go
@@ -106,7 +106,13 @@ func (s *Service) ListAdmin(ctx context.Context) ([]entity.Track, error) {
 	return s.repo.ListAll(ctx)
 }
 
-func (s *Service) Playlist(ctx context.Context, categoryID int64) (*entity.Playlist, error) {
+// PlaylistQuery filters the public music list.
+type PlaylistQuery struct {
+	CategoryID    int64
+	RequireMember *bool // nil=all; true=仅会员曲；false=仅免费曲
+}
+
+func (s *Service) Playlist(ctx context.Context, q PlaylistQuery) (*entity.Playlist, error) {
 	if !s.Ready() {
 		return nil, ErrNotReady
 	}
@@ -114,14 +120,15 @@ func (s *Service) Playlist(ctx context.Context, categoryID int64) (*entity.Playl
 		items []entity.Track
 		err   error
 	)
-	if categoryID > 0 {
-		items, err = s.repo.ListEnabledByCategory(ctx, categoryID)
+	if q.CategoryID > 0 {
+		items, err = s.repo.ListEnabledByCategory(ctx, q.CategoryID)
 	} else {
 		items, err = s.repo.ListEnabled(ctx)
 	}
 	if err != nil {
 		return nil, err
 	}
+	items = filterRequireMember(items, q.RequireMember)
 	sec, err := s.repo.MemberPreviewSeconds(ctx)
 	if err != nil {
 		return nil, err
@@ -133,6 +140,115 @@ func (s *Service) Playlist(ctx context.Context, categoryID int64) (*entity.Playl
 	return &entity.Playlist{Items: items, Categories: tree, MemberPreviewSeconds: sec}, nil
 }
 
+// GetPublic returns one enabled track for clients (maps to HuanXiu /music/v1/detail).
+func (s *Service) GetPublic(ctx context.Context, id int64) (*entity.Track, error) {
+	if !s.Ready() {
+		return nil, ErrNotReady
+	}
+	if id <= 0 {
+		return nil, errs.ErrInvalidArgument.WithMsg("id 无效")
+	}
+	t, err := s.repo.Get(ctx, id)
+	if err != nil {
+		return nil, errs.ErrNotFound.WithMsg("曲目不存在")
+	}
+	if !t.Enabled {
+		return nil, errs.ErrNotFound.WithMsg("曲目不存在")
+	}
+	return t, nil
+}
+
+// PlaylistGrouped returns leaf categories each with their tracks
+// (maps to HuanXiu zoneAndZoneMusicList for home tab).
+// parentID>0 limits to that category itself (if leaf) or its children.
+func (s *Service) PlaylistGrouped(ctx context.Context, parentID int64) (*entity.GroupedPlaylist, error) {
+	if !s.Ready() {
+		return nil, ErrNotReady
+	}
+	if parentID < 0 {
+		return nil, errs.ErrInvalidArgument.WithMsg("parentId 无效")
+	}
+	tree, err := s.CategoryTree(ctx, true)
+	if err != nil {
+		return nil, err
+	}
+	leaves := collectLeafCategories(tree, parentID)
+	sec, err := s.repo.MemberPreviewSeconds(ctx)
+	if err != nil {
+		return nil, err
+	}
+	groups := make([]entity.PlaylistGroup, 0, len(leaves))
+	for _, cat := range leaves {
+		items, err := s.repo.ListEnabledByCategory(ctx, cat.ID)
+		if err != nil {
+			return nil, err
+		}
+		if items == nil {
+			items = []entity.Track{}
+		}
+		groups = append(groups, entity.PlaylistGroup{
+			CategoryID: cat.ID,
+			Name:       cat.Name,
+			ParentID:   cat.ParentID,
+			Items:      items,
+		})
+	}
+	return &entity.GroupedPlaylist{Groups: groups, MemberPreviewSeconds: sec}, nil
+}
+
+func filterRequireMember(items []entity.Track, requireMember *bool) []entity.Track {
+	if requireMember == nil {
+		return items
+	}
+	out := make([]entity.Track, 0, len(items))
+	want := *requireMember
+	for _, t := range items {
+		if t.RequireMember == want {
+			out = append(out, t)
+		}
+	}
+	return out
+}
+
+// collectLeafCategories walks the enabled tree.
+// parentID==0 → all leaves; parentID>0 → that node if leaf, else its child leaves.
+func collectLeafCategories(tree []entity.Category, parentID int64) []entity.Category {
+	if parentID > 0 {
+		if cat, ok := findCategory(tree, parentID); ok {
+			if len(cat.Children) == 0 {
+				return []entity.Category{cat}
+			}
+			return leafCategories(cat.Children)
+		}
+		return nil
+	}
+	return leafCategories(tree)
+}
+
+func findCategory(tree []entity.Category, id int64) (entity.Category, bool) {
+	for _, c := range tree {
+		if c.ID == id {
+			return c, true
+		}
+		if found, ok := findCategory(c.Children, id); ok {
+			return found, true
+		}
+	}
+	return entity.Category{}, false
+}
+
+func leafCategories(tree []entity.Category) []entity.Category {
+	var out []entity.Category
+	for _, c := range tree {
+		if len(c.Children) == 0 {
+			out = append(out, c)
+			continue
+		}
+		out = append(out, leafCategories(c.Children)...)
+	}
+	return out
+}
+
 func (s *Service) Settings(ctx context.Context) (*entity.Settings, error) {
 	if !s.Ready() {
 		return nil, ErrNotReady
diff --git a/internal/module/music/logic/service_test.go b/internal/module/music/logic/service_test.go
index df9c2db..a1072a3 100644
--- a/internal/module/music/logic/service_test.go
+++ b/internal/module/music/logic/service_test.go
@@ -42,8 +42,24 @@ func (s *stubMusicRepo) ListEnabled(_ context.Context) ([]entity.Track, error) {
 	return out, nil
 }
 
-func (s *stubMusicRepo) ListEnabledByCategory(_ context.Context, _ int64) ([]entity.Track, error) {
-	return s.ListEnabled(context.Background())
+func (s *stubMusicRepo) ListEnabledByCategory(_ context.Context, categoryID int64) ([]entity.Track, error) {
+	out := make([]entity.Track, 0)
+	for _, t := range s.tracks {
+		if !t.Enabled {
+			continue
+		}
+		ids := s.trackCategories[t.ID]
+		if ids == nil {
+			ids = t.CategoryIDs
+		}
+		for _, id := range ids {
+			if id == categoryID {
+				out = append(out, *t)
+				break
+			}
+		}
+	}
+	return out, nil
 }
 
 func (s *stubMusicRepo) Get(_ context.Context, id int64) (*entity.Track, error) {
@@ -182,7 +198,7 @@ func newTestService() (*Service, *stubMusicRepo) {
 func TestServicePlaylistAndSettings(t *testing.T) {
 	svc, repo := newTestService()
 	_ = repo.Insert(context.Background(), &entity.Track{Title: "a", Enabled: true})
-	pl, err := svc.Playlist(context.Background(), 0)
+	pl, err := svc.Playlist(context.Background(), PlaylistQuery{})
 	if err != nil || len(pl.Items) != 1 || pl.MemberPreviewSeconds != 30 {
 		t.Fatalf("playlist %+v %v", pl, err)
 	}
@@ -196,6 +212,73 @@ func TestServicePlaylistAndSettings(t *testing.T) {
 	}
 }
 
+func TestServiceGetPublicAndRequireMember(t *testing.T) {
+	svc, repo := newTestService()
+	ctx := context.Background()
+	_ = repo.Insert(ctx, &entity.Track{Title: "free", Enabled: true, RequireMember: false})
+	_ = repo.Insert(ctx, &entity.Track{Title: "vip", Enabled: true, RequireMember: true})
+	_ = repo.Insert(ctx, &entity.Track{Title: "off", Enabled: false})
+
+	got, err := svc.GetPublic(ctx, 1)
+	if err != nil || got.Title != "free" {
+		t.Fatalf("get %+v %v", got, err)
+	}
+	if _, err := svc.GetPublic(ctx, 3); err == nil {
+		t.Fatal("want disabled not found")
+	}
+	if _, err := svc.GetPublic(ctx, 0); err == nil {
+		t.Fatal("want invalid id")
+	}
+
+	wantVIP := true
+	vipOnly, err := svc.Playlist(ctx, PlaylistQuery{RequireMember: &wantVIP})
+	if err != nil || len(vipOnly.Items) != 1 || !vipOnly.Items[0].RequireMember {
+		t.Fatalf("vip filter %+v %v", vipOnly, err)
+	}
+	wantFree := false
+	freeOnly, err := svc.Playlist(ctx, PlaylistQuery{RequireMember: &wantFree})
+	if err != nil || len(freeOnly.Items) != 1 || freeOnly.Items[0].RequireMember {
+		t.Fatalf("free filter %+v %v", freeOnly, err)
+	}
+}
+
+func TestServicePlaylistGrouped(t *testing.T) {
+	svc, _ := newTestService()
+	ctx := context.Background()
+	root, err := svc.CreateCategory(ctx, CategoryInput{Name: "Home"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	pid := root.ID
+	rain, err := svc.CreateCategory(ctx, CategoryInput{Name: "Rain", ParentID: &pid})
+	if err != nil {
+		t.Fatal(err)
+	}
+	wind, err := svc.CreateCategory(ctx, CategoryInput{Name: "Wind", ParentID: &pid})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := svc.Create(ctx, UpsertInput{Title: "soft rain", CategoryIDs: []int64{rain.ID}}); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := svc.Create(ctx, UpsertInput{Title: "gentle wind", CategoryIDs: []int64{wind.ID}}); err != nil {
+		t.Fatal(err)
+	}
+
+	all, err := svc.PlaylistGrouped(ctx, 0)
+	if err != nil || len(all.Groups) != 2 {
+		t.Fatalf("grouped all %+v %v", all, err)
+	}
+	underHome, err := svc.PlaylistGrouped(ctx, root.ID)
+	if err != nil || len(underHome.Groups) != 2 {
+		t.Fatalf("under home %+v %v", underHome, err)
+	}
+	one, err := svc.PlaylistGrouped(ctx, rain.ID)
+	if err != nil || len(one.Groups) != 1 || one.Groups[0].CategoryID != rain.ID || len(one.Groups[0].Items) != 1 {
+		t.Fatalf("leaf group %+v %v", one, err)
+	}
+}
+
 func TestServiceCRUD(t *testing.T) {
 	svc, _ := newTestService()
 	ctx := context.Background()
@@ -308,7 +391,7 @@ func TestNewServicePublicURLDefaults(t *testing.T) {
 
 func TestServiceNotReady(t *testing.T) {
 	var svc *Service
-	if _, err := svc.Playlist(context.Background(), 0); !errors.Is(err, ErrNotReady) {
+	if _, err := svc.Playlist(context.Background(), PlaylistQuery{}); !errors.Is(err, ErrNotReady) {
 		t.Fatalf("%v", err)
 	}
 }
diff --git a/internal/module/square/entity/channel.go b/internal/module/square/entity/channel.go
new file mode 100644
index 0000000..d064074
--- /dev/null
+++ b/internal/module/square/entity/channel.go
@@ -0,0 +1,104 @@
+package entity
+
+// Channel is a square plaza instance (path prefix / data isolation).
+type Channel string
+
+const (
+	ChannelSquare       Channel = "square"
+	ChannelSquareNovel  Channel = "squarenovel"
+	ChannelSquareSteps  Channel = "squaresteps"
+	ChannelSquareHealth Channel = "squarehealth"
+)
+
+// Channels is the closed set of plaza instances.
+func Channels() []Channel {
+	return []Channel{ChannelSquare, ChannelSquareNovel, ChannelSquareSteps, ChannelSquareHealth}
+}
+
+func (c Channel) Valid() bool {
+	switch c {
+	case ChannelSquare, ChannelSquareNovel, ChannelSquareSteps, ChannelSquareHealth:
+		return true
+	default:
+		return false
+	}
+}
+
+func ParseChannel(s string) (Channel, bool) {
+	c := Channel(s)
+	if !c.Valid() {
+		return "", false
+	}
+	return c, true
+}
+
+// Category is a feed tab / post tag under every channel.
+// Feed modes (recommend/latest/hot/nearby) only affect list sort; tags are stored on posts.
+type Category string
+
+const (
+	CategoryRecommend Category = "recommend"
+	CategoryLatest    Category = "latest"
+	CategoryHot       Category = "hot"
+	CategoryNearby    Category = "nearby"
+	CategoryFunny     Category = "funny"
+	CategoryBeauty    Category = "beauty"
+)
+
+// Categories lists every filter tab (feed modes + tags).
+func Categories() []Category {
+	return []Category{
+		CategoryRecommend, CategoryLatest, CategoryHot, CategoryNearby,
+		CategoryFunny, CategoryBeauty,
+	}
+}
+
+// PublishCategories are tags that may be written on a post.
+func PublishCategories() []Category {
+	return []Category{CategoryFunny, CategoryBeauty}
+}
+
+func (c Category) Valid() bool {
+	switch c {
+	case CategoryRecommend, CategoryLatest, CategoryHot, CategoryNearby,
+		CategoryFunny, CategoryBeauty, "":
+		return true
+	default:
+		return false
+	}
+}
+
+func (c Category) IsFeedMode() bool {
+	switch c {
+	case CategoryRecommend, CategoryLatest, CategoryHot, CategoryNearby, "":
+		return true
+	default:
+		return false
+	}
+}
+
+func (c Category) IsTag() bool {
+	switch c {
+	case CategoryFunny, CategoryBeauty:
+		return true
+	default:
+		return false
+	}
+}
+
+func ParseCategory(s string) (Category, bool) {
+	c := Category(s)
+	if !c.Valid() {
+		return "", false
+	}
+	return c, true
+}
+
+// FeedListQuery drives public feed filtering and sort in the repository.
+type FeedListQuery struct {
+	Cursor   int64
+	Limit    int
+	Category Category
+	Lat      float64
+	Lng      float64
+}
diff --git a/internal/module/square/entity/post.go b/internal/module/square/entity/post.go
index 510f3fe..cf02543 100644
--- a/internal/module/square/entity/post.go
+++ b/internal/module/square/entity/post.go
@@ -4,6 +4,8 @@ package entity
 type Post struct {
 	ID           int64
 	UserID       int64
+	Channel      Channel
+	Category     Category
 	Kind         Kind
 	Text         string
 	Content      []byte
@@ -65,6 +67,7 @@ type Comment struct {
 type Notice struct {
 	ID          int64
 	ToUserID    int64
+	Channel     Channel
 	FromUserID  int64
 	Kind        NoticeKind
 	PostID      int64
@@ -73,13 +76,17 @@ type Notice struct {
 	CreatedAtMS int64
 }
 
-// NoticeState is per-user read watermark for square notices.
+// NoticeState is per-user per-channel read watermark for square notices.
 type NoticeState struct {
 	UserID           int64
+	Channel          Channel
 	LastReadNoticeID int64
 	UpdatedAtMS      int64
 }
 
-func DefaultNoticeState(userID int64) *NoticeState {
-	return &NoticeState{UserID: userID}
+func DefaultNoticeState(userID int64, channel Channel) *NoticeState {
+	if channel == "" {
+		channel = ChannelSquare
+	}
+	return &NoticeState{UserID: userID, Channel: channel}
 }
diff --git a/internal/module/square/logic/album.go b/internal/module/square/logic/album.go
index 14e4b51..c175572 100644
--- a/internal/module/square/logic/album.go
+++ b/internal/module/square/logic/album.go
@@ -8,13 +8,17 @@ import (
 )
 
 // UserPosts lists posts by owner visible to viewer (profile square tab).
-func (s *Service) UserPosts(ctx context.Context, viewerID, ownerID, cursor int64, limit int) (*ListResult, error) {
+func (s *Service) UserPosts(ctx context.Context, viewerID, ownerID int64, channel entity.Channel, cursor int64, limit int) (*ListResult, error) {
 	if !s.ready() || viewerID <= 0 {
 		return nil, errs.ErrUnauthorized
 	}
 	if ownerID <= 0 {
 		return nil, errs.ErrInvalidArgument
 	}
+	channel = normalizeChannel(channel)
+	if !channel.Valid() {
+		return nil, errs.ErrInvalidArgument
+	}
 	if ownerID != viewerID {
 		blocked, err := s.friends.BlockedEither(ctx, viewerID, ownerID)
 		if err != nil {
@@ -28,7 +32,7 @@ func (s *Service) UserPosts(ctx context.Context, viewerID, ownerID, cursor int64
 	picked := make([]*entity.Post, 0, limit)
 	scan := cursor
 	for range entity.OverfetchRounds {
-		batch, err := s.repo.ListByAuthor(ctx, ownerID, scan, entity.Overfetch)
+		batch, err := s.repo.ListByAuthor(ctx, channel, ownerID, scan, entity.Overfetch)
 		if err != nil {
 			return nil, err
 		}
diff --git a/internal/module/square/logic/attach.go b/internal/module/square/logic/attach.go
index 2788b06..67d41d3 100644
--- a/internal/module/square/logic/attach.go
+++ b/internal/module/square/logic/attach.go
@@ -34,7 +34,8 @@ func (s *Service) oneView(viewer int64, p *entity.Post, likes []*entity.Like, co
 	likeCards, liked, likeN := filterLikes(viewer, likes, users, remarks, full)
 	commentViews, commentN := filterComments(comments, users, remarks, full)
 	return &View{
-		ID: p.ID, User: cardOf(users[p.UserID], remarks[p.UserID]), Kind: p.Kind, Text: p.Text,
+		ID: p.ID, Channel: normalizeChannel(p.Channel), Category: p.Category,
+		User: cardOf(users[p.UserID], remarks[p.UserID]), Kind: p.Kind, Text: p.Text,
 		Content: contentJSON(p.Content), POI: poiPtr(p.POI), Visibility: p.Visibility,
 		LikeCount: likeN, CommentCount: commentN,
 		Liked: liked, Likes: likeCards, Comments: commentViews, CreatedAt: p.CreatedAtMS,
diff --git a/internal/module/square/logic/comment.go b/internal/module/square/logic/comment.go
index 5124cb9..d8c8304 100644
--- a/internal/module/square/logic/comment.go
+++ b/internal/module/square/logic/comment.go
@@ -18,8 +18,8 @@ type CommentInput struct {
 	ReplyToID int64  `json:"reply_to_id" validate:"omitempty,gt=0" label:"field.square_reply"`
 }
 
-func (s *Service) Comment(ctx context.Context, userID, postID int64, in *CommentInput) (*View, error) {
-	post, err := s.visiblePost(ctx, userID, postID)
+func (s *Service) Comment(ctx context.Context, userID, postID int64, channel entity.Channel, in *CommentInput) (*View, error) {
+	post, err := s.visiblePost(ctx, userID, postID, channel)
 	if err != nil {
 		return nil, err
 	}
@@ -56,11 +56,11 @@ func (s *Service) Comment(ctx context.Context, userID, postID int64, in *Comment
 		return nil, err
 	}
 	_ = s.notify(ctx, commentNotices(post, row, userID))
-	return s.Get(ctx, userID, postID)
+	return s.Get(ctx, userID, postID, channel)
 }
 
-func (s *Service) DeleteComment(ctx context.Context, userID, postID, commentID int64) (*View, error) {
-	post, err := s.visiblePost(ctx, userID, postID)
+func (s *Service) DeleteComment(ctx context.Context, userID, postID, commentID int64, channel entity.Channel) (*View, error) {
+	post, err := s.visiblePost(ctx, userID, postID, channel)
 	if err != nil {
 		return nil, err
 	}
@@ -77,7 +77,7 @@ func (s *Service) DeleteComment(ctx context.Context, userID, postID, commentID i
 	if err := s.repo.SoftDeleteComment(ctx, commentID); err != nil {
 		return nil, err
 	}
-	return s.Get(ctx, userID, postID)
+	return s.Get(ctx, userID, postID, channel)
 }
 
 func (s *Service) loadParent(ctx context.Context, postID, replyToID int64) (*entity.Comment, error) {
@@ -97,6 +97,10 @@ func (s *Service) loadParent(ctx context.Context, postID, replyToID int64) (*ent
 func commentNotices(post *entity.Post, c *entity.Comment, from int64) []*entity.Notice {
 	seen := map[int64]struct{}{}
 	out := make([]*entity.Notice, 0, 2)
+	ch := post.Channel
+	if ch == "" {
+		ch = entity.ChannelSquare
+	}
 	add := func(to int64, kind entity.NoticeKind) {
 		if to <= 0 || to == from {
 			return
@@ -106,7 +110,7 @@ func commentNotices(post *entity.Post, c *entity.Comment, from int64) []*entity.
 		}
 		seen[to] = struct{}{}
 		out = append(out, &entity.Notice{
-			ToUserID: to, FromUserID: from, Kind: kind, PostID: post.ID, CommentID: c.ID,
+			ToUserID: to, Channel: ch, FromUserID: from, Kind: kind, PostID: post.ID, CommentID: c.ID,
 		})
 	}
 	if c.ReplyToUID > 0 {
diff --git a/internal/module/square/logic/delete.go b/internal/module/square/logic/delete.go
index ee5c268..383f81e 100644
--- a/internal/module/square/logic/delete.go
+++ b/internal/module/square/logic/delete.go
@@ -7,18 +7,26 @@ import (
 	"spark-server/internal/pkg/errs"
 )
 
-func (s *Service) Delete(ctx context.Context, userID, postID int64) error {
+func (s *Service) Delete(ctx context.Context, userID, postID int64, channel entity.Channel) error {
 	if !s.ready() || userID <= 0 {
 		return errs.ErrUnauthorized
 	}
 	if postID <= 0 {
 		return errs.ErrInvalidArgument
 	}
-	post, err := s.repo.SoftDeletePost(ctx, userID, postID)
+	channel = normalizeChannel(channel)
+	post, err := s.repo.GetPost(ctx, postID)
 	if err != nil {
 		return err
 	}
-	s.deleteMedia(ctx, post)
+	if normalizeChannel(post.Channel) != channel || post.UserID != userID {
+		return errs.ErrNotFound
+	}
+	deleted, err := s.repo.SoftDeletePost(ctx, userID, postID)
+	if err != nil {
+		return err
+	}
+	s.deleteMedia(ctx, deleted)
 	return nil
 }
 
diff --git a/internal/module/square/logic/feed.go b/internal/module/square/logic/feed.go
index 9bb846a..15944c5 100644
--- a/internal/module/square/logic/feed.go
+++ b/internal/module/square/logic/feed.go
@@ -7,15 +7,33 @@ import (
 	"spark-server/internal/pkg/errs"
 )
 
-func (s *Service) Feed(ctx context.Context, viewerID, cursor int64, limit int) (*ListResult, error) {
+// FeedQuery is list filter/sort for a plaza channel.
+type FeedQuery struct {
+	Cursor   int64
+	Limit    int
+	Category entity.Category
+	Lat      float64
+	Lng      float64
+}
+
+func (s *Service) Feed(ctx context.Context, viewerID int64, channel entity.Channel, q FeedQuery) (*ListResult, error) {
 	if !s.ready() || viewerID <= 0 {
 		return nil, errs.ErrUnauthorized
 	}
-	limit = entity.ClampLimit(limit)
+	channel = normalizeChannel(channel)
+	if !channel.Valid() {
+		return nil, errs.ErrInvalidArgument
+	}
+	if !q.Category.Valid() {
+		return nil, errs.ErrInvalidArgument
+	}
+	limit := entity.ClampLimit(q.Limit)
 	picked := make([]*entity.Post, 0, limit)
-	scan := cursor
+	scan := q.Cursor
 	for range entity.OverfetchRounds {
-		batch, err := s.repo.ListPublicFeed(ctx, scan, entity.Overfetch)
+		batch, err := s.repo.ListPublicFeed(ctx, channel, entity.FeedListQuery{
+			Cursor: scan, Limit: entity.Overfetch, Category: q.Category, Lat: q.Lat, Lng: q.Lng,
+		})
 		if err != nil {
 			return nil, err
 		}
@@ -55,3 +73,23 @@ func (s *Service) listResult(ctx context.Context, viewer int64, posts []*entity.
 	hasMore := len(posts) >= limit && limit > 0
 	return &ListResult{Items: views, NextCursor: next, HasMore: hasMore}, nil
 }
+
+// CategoryItem is one filter tab for clients.
+type CategoryItem struct {
+	Value    entity.Category `json:"value"`
+	Kind     string          `json:"kind"` // feed | tag
+	LabelKey string          `json:"-"`
+}
+
+// Categories returns filter tabs (feed modes + tags) shared by every channel.
+func (s *Service) Categories() []CategoryItem {
+	out := make([]CategoryItem, 0, len(entity.Categories()))
+	for _, c := range entity.Categories() {
+		kind := "feed"
+		if c.IsTag() {
+			kind = "tag"
+		}
+		out = append(out, CategoryItem{Value: c, Kind: kind})
+	}
+	return out
+}
diff --git a/internal/module/square/logic/like.go b/internal/module/square/logic/like.go
index 5f13703..2562939 100644
--- a/internal/module/square/logic/like.go
+++ b/internal/module/square/logic/like.go
@@ -9,8 +9,8 @@ import (
 	"spark-server/internal/pkg/errs"
 )
 
-func (s *Service) Like(ctx context.Context, userID, postID int64) (*View, error) {
-	post, err := s.visiblePost(ctx, userID, postID)
+func (s *Service) Like(ctx context.Context, userID, postID int64, channel entity.Channel) (*View, error) {
+	post, err := s.visiblePost(ctx, userID, postID, channel)
 	if err != nil {
 		return nil, err
 	}
@@ -22,32 +22,36 @@ func (s *Service) Like(ctx context.Context, userID, postID int64) (*View, error)
 		return nil, err
 	}
 	if created {
-		_ = s.notify(ctx, []*entity.Notice{s.newNotice(post.UserID, userID, entity.NoticeLike, postID, 0)})
+		_ = s.notify(ctx, []*entity.Notice{s.newNotice(post.UserID, userID, entity.NoticeLike, post.Channel, postID, 0)})
 	}
-	return s.Get(ctx, userID, postID)
+	return s.Get(ctx, userID, postID, channel)
 }
 
-func (s *Service) Unlike(ctx context.Context, userID, postID int64) (*View, error) {
-	if _, err := s.visiblePost(ctx, userID, postID); err != nil {
+func (s *Service) Unlike(ctx context.Context, userID, postID int64, channel entity.Channel) (*View, error) {
+	if _, err := s.visiblePost(ctx, userID, postID, channel); err != nil {
 		return nil, err
 	}
 	if err := s.repo.RemoveLike(ctx, postID, userID); err != nil && !errors.Is(err, errs.ErrNotFound) {
 		return nil, err
 	}
-	return s.Get(ctx, userID, postID)
+	return s.Get(ctx, userID, postID, channel)
 }
 
-func (s *Service) visiblePost(ctx context.Context, viewerID, postID int64) (*entity.Post, error) {
+func (s *Service) visiblePost(ctx context.Context, viewerID, postID int64, channel entity.Channel) (*entity.Post, error) {
 	if !s.ready() || viewerID <= 0 {
 		return nil, errs.ErrUnauthorized
 	}
 	if postID <= 0 {
 		return nil, errs.ErrInvalidArgument
 	}
+	channel = normalizeChannel(channel)
 	post, err := s.repo.GetPost(ctx, postID)
 	if err != nil {
 		return nil, err
 	}
+	if normalizeChannel(post.Channel) != channel {
+		return nil, errs.ErrNotFound
+	}
 	vis, err := s.visFor(ctx, viewerID, []*entity.Post{post})
 	if err != nil {
 		return nil, err
diff --git a/internal/module/square/logic/notice.go b/internal/module/square/logic/notice.go
index e28beb4..b0c331c 100644
--- a/internal/module/square/logic/notice.go
+++ b/internal/module/square/logic/notice.go
@@ -32,12 +32,16 @@ type NoticeReadInput struct {
 	Cursor int64 `json:"cursor" validate:"omitempty,gte=0" label:"field.square_notice_cursor"`
 }
 
-func (s *Service) ListNotices(ctx context.Context, userID, cursor int64, limit int) (*NoticeList, error) {
+func (s *Service) ListNotices(ctx context.Context, userID int64, channel entity.Channel, cursor int64, limit int) (*NoticeList, error) {
 	if !s.ready() || userID <= 0 {
 		return nil, errs.ErrUnauthorized
 	}
+	channel = normalizeChannel(channel)
+	if !channel.Valid() {
+		return nil, errs.ErrInvalidArgument
+	}
 	limit = entity.ClampLimit(limit)
-	rows, err := s.repo.ListNotices(ctx, userID, cursor, limit)
+	rows, err := s.repo.ListNotices(ctx, userID, channel, cursor, limit)
 	if err != nil {
 		return nil, err
 	}
@@ -59,39 +63,47 @@ func (s *Service) ListNotices(ctx context.Context, userID, cursor int64, limit i
 	return &NoticeList{Items: items, NextCursor: next}, nil
 }
 
-func (s *Service) ReadNotices(ctx context.Context, userID int64, in *NoticeReadInput) error {
+func (s *Service) ReadNotices(ctx context.Context, userID int64, channel entity.Channel, in *NoticeReadInput) error {
 	if !s.ready() || userID <= 0 {
 		return errs.ErrUnauthorized
 	}
+	channel = normalizeChannel(channel)
+	if !channel.Valid() {
+		return errs.ErrInvalidArgument
+	}
 	cursor := int64(0)
 	if in != nil {
 		cursor = in.Cursor
 	}
-	if err := s.repo.MarkNoticesRead(ctx, userID, cursor); err != nil {
+	if err := s.repo.MarkNoticesRead(ctx, userID, channel, cursor); err != nil {
 		return err
 	}
 	if cursor > 0 {
-		return s.repo.AdvanceNoticeRead(ctx, userID, cursor)
+		return s.repo.AdvanceNoticeRead(ctx, userID, channel, cursor)
 	}
-	latest, err := s.repo.LatestNoticeID(ctx, userID)
+	latest, err := s.repo.LatestNoticeID(ctx, userID, channel)
 	if err != nil {
 		return err
 	}
 	if latest > 0 {
-		return s.repo.AdvanceNoticeRead(ctx, userID, latest)
+		return s.repo.AdvanceNoticeRead(ctx, userID, channel, latest)
 	}
 	return nil
 }
 
-func (s *Service) NoticeUnread(ctx context.Context, userID int64) (*NoticeUnread, error) {
+func (s *Service) NoticeUnread(ctx context.Context, userID int64, channel entity.Channel) (*NoticeUnread, error) {
 	if !s.ready() || userID <= 0 {
 		return nil, errs.ErrUnauthorized
 	}
-	st, err := s.repo.GetNoticeState(ctx, userID)
+	channel = normalizeChannel(channel)
+	if !channel.Valid() {
+		return nil, errs.ErrInvalidArgument
+	}
+	st, err := s.repo.GetNoticeState(ctx, userID, channel)
 	if err != nil {
 		return nil, err
 	}
-	latest, err := s.repo.LatestNoticeID(ctx, userID)
+	latest, err := s.repo.LatestNoticeID(ctx, userID, channel)
 	if err != nil {
 		return nil, err
 	}
@@ -111,14 +123,20 @@ func (s *Service) notify(ctx context.Context, rows []*entity.Notice) error {
 		}
 		n.ID = id
 		n.CreatedAtMS = now
+		if n.Channel == "" {
+			n.Channel = entity.ChannelSquare
+		}
 		out = append(out, n)
 	}
 	return s.repo.CreateNotices(ctx, out)
 }
 
-func (s *Service) newNotice(to, from int64, kind entity.NoticeKind, postID, commentID int64) *entity.Notice {
+func (s *Service) newNotice(to, from int64, kind entity.NoticeKind, channel entity.Channel, postID, commentID int64) *entity.Notice {
 	if to <= 0 || to == from {
 		return nil
 	}
-	return &entity.Notice{ToUserID: to, FromUserID: from, Kind: kind, PostID: postID, CommentID: commentID}
+	if channel == "" {
+		channel = entity.ChannelSquare
+	}
+	return &entity.Notice{ToUserID: to, Channel: channel, FromUserID: from, Kind: kind, PostID: postID, CommentID: commentID}
 }
diff --git a/internal/module/square/logic/publish.go b/internal/module/square/logic/publish.go
index 132ae50..fd7670e 100644
--- a/internal/module/square/logic/publish.go
+++ b/internal/module/square/logic/publish.go
@@ -21,18 +21,26 @@ type PublishInput struct {
 	Visibility   entity.Visibility `json:"visibility" validate:"omitempty,oneof=0 1 2 3" label:"field.square_visibility" errmsg:"oneof:validate.square.visibility_invalid"`
 	AudienceUIDs []int64           `json:"audience_uids" validate:"omitempty,max=200,dive,gt=0" label:"field.square_audience"`
 	POI          *entity.POI       `json:"poi"`
+	Category     entity.Category   `json:"category" validate:"omitempty,oneof=funny beauty" label:"field.square_category" errmsg:"oneof:validate.square.category_invalid"`
 }
 
-func (s *Service) Publish(ctx context.Context, userID int64, in *PublishInput) (*View, error) {
+func (s *Service) Publish(ctx context.Context, userID int64, channel entity.Channel, in *PublishInput) (*View, error) {
 	if !s.ready() || userID <= 0 {
 		return nil, errs.ErrUnauthorized
 	}
+	channel = normalizeChannel(channel)
+	if !channel.Valid() {
+		return nil, errs.ErrInvalidArgument
+	}
 	if in == nil {
 		return nil, errs.ErrInvalidArgument
 	}
 	if err := validate.StructLang(reqctx.Lang(ctx), in); err != nil {
 		return nil, err
 	}
+	if in.Category != "" && !in.Category.IsTag() {
+		return nil, errs.ErrInvalidArgument.WithMsg(i18n.T(reqctx.Lang(ctx), i18n.KeySquareCategoryInvalid, nil))
+	}
 	if !s.allowPublish(ctx, userID) {
 		return nil, errs.ErrRateLimited
 	}
@@ -60,7 +68,8 @@ func (s *Service) Publish(ctx context.Context, userID int64, in *PublishInput) (
 		vis = entity.VisibilityPublic
 	}
 	post := &entity.Post{
-		ID: id, UserID: userID, Kind: kind, Text: strings.TrimSpace(in.Text), Content: raw,
+		ID: id, UserID: userID, Channel: channel, Category: in.Category,
+		Kind: kind, Text: strings.TrimSpace(in.Text), Content: raw,
 		Visibility: vis, AuditStatus: entity.AuditApproved, Status: entity.StatusNormal,
 		CreatedAtMS: now.UnixMilli(),
 	}
diff --git a/internal/module/square/logic/service.go b/internal/module/square/logic/service.go
index 421df91..d9e24e5 100644
--- a/internal/module/square/logic/service.go
+++ b/internal/module/square/logic/service.go
@@ -16,8 +16,8 @@ type Repository interface {
 	CreatePost(ctx context.Context, post *entity.Post, audience []int64) error
 	CreateBotPost(ctx context.Context, post *entity.Post) error
 	GetPost(ctx context.Context, id int64) (*entity.Post, error)
-	ListPublicFeed(ctx context.Context, cursor int64, limit int) ([]*entity.Post, error)
-	ListByAuthor(ctx context.Context, authorID, cursor int64, limit int) ([]*entity.Post, error)
+	ListPublicFeed(ctx context.Context, channel entity.Channel, q entity.FeedListQuery) ([]*entity.Post, error)
+	ListByAuthor(ctx context.Context, channel entity.Channel, authorID, cursor int64, limit int) ([]*entity.Post, error)
 	SoftDeletePost(ctx context.Context, userID, postID int64) (*entity.Post, error)
 	SoftDeleteExpiredBotPosts(ctx context.Context, nowMS int64, limit int) ([]*entity.Post, error)
 	ListAudience(ctx context.Context, postIDs []int64) (map[int64][]int64, error)
@@ -29,11 +29,11 @@ type Repository interface {
 	AddComment(ctx context.Context, c *entity.Comment) error
 	SoftDeleteComment(ctx context.Context, id int64) error
 	CreateNotices(ctx context.Context, rows []*entity.Notice) error
-	ListNotices(ctx context.Context, userID, cursor int64, limit int) ([]*entity.Notice, error)
-	MarkNoticesRead(ctx context.Context, userID, cursor int64) error
-	GetNoticeState(ctx context.Context, userID int64) (*entity.NoticeState, error)
-	LatestNoticeID(ctx context.Context, userID int64) (int64, error)
-	AdvanceNoticeRead(ctx context.Context, userID, noticeID int64) error
+	ListNotices(ctx context.Context, userID int64, channel entity.Channel, cursor int64, limit int) ([]*entity.Notice, error)
+	MarkNoticesRead(ctx context.Context, userID int64, channel entity.Channel, cursor int64) error
+	GetNoticeState(ctx context.Context, userID int64, channel entity.Channel) (*entity.NoticeState, error)
+	LatestNoticeID(ctx context.Context, userID int64, channel entity.Channel) (int64, error)
+	AdvanceNoticeRead(ctx context.Context, userID int64, channel entity.Channel, noticeID int64) error
 	ListAllByAuthor(ctx context.Context, authorID int64) ([]*entity.Post, error)
 	PurgeUser(ctx context.Context, userID int64) error
 }
@@ -91,3 +91,10 @@ func (s *Service) ConfigureMedia(p media.Policy, log *zap.Logger) {
 func (s *Service) ready() bool {
 	return s != nil && s.repo != nil && s.friends != nil && s.users != nil && s.ids != nil
 }
+
+func normalizeChannel(ch entity.Channel) entity.Channel {
+	if ch == "" {
+		return entity.ChannelSquare
+	}
+	return ch
+}
diff --git a/internal/module/square/logic/square_test.go b/internal/module/square/logic/square_test.go
index 9122193..a96f50c 100644
--- a/internal/module/square/logic/square_test.go
+++ b/internal/module/square/logic/square_test.go
@@ -75,34 +75,35 @@ func TestSquarePublishFeedPrivateAndNotice(t *testing.T) {
 	becomeFriends(t, friends, a, b)
 	ctxA := ctxUser(t, a.ID, "10.0.0.1")
 	ctxB := ctxUser(t, b.ID, "10.0.0.2")
-	pub, err := svc.Publish(ctxA, a.ID, &PublishInput{Text: "hello square"})
-	if err != nil || pub.Text != "hello square" {
+	ch := entity.ChannelSquare
+	pub, err := svc.Publish(ctxA, a.ID, ch, &PublishInput{Text: "hello square"})
+	if err != nil || pub.Text != "hello square" || pub.Channel != ch {
 		t.Fatalf("%+v %v", pub, err)
 	}
-	feed, err := svc.Feed(ctxB, b.ID, 0, 20)
+	feed, err := svc.Feed(ctxB, b.ID, ch, FeedQuery{Limit: 20})
 	if err != nil || len(feed.Items) != 1 {
 		t.Fatalf("feed %+v %v", feed, err)
 	}
-	priv, err := svc.Publish(ctxA, a.ID, &PublishInput{Text: "secret", Visibility: entity.VisibilityPrivate})
+	priv, err := svc.Publish(ctxA, a.ID, ch, &PublishInput{Text: "secret", Visibility: entity.VisibilityPrivate})
 	if err != nil {
 		t.Fatal(err)
 	}
-	feed, err = svc.Feed(ctxB, b.ID, 0, 20)
+	feed, err = svc.Feed(ctxB, b.ID, ch, FeedQuery{Limit: 20})
 	if err != nil || len(feed.Items) != 1 {
 		t.Fatalf("private in feed %+v", feed)
 	}
-	if _, err := svc.Get(ctxB, b.ID, priv.ID); !errors.Is(err, errs.ErrNotFound) {
+	if _, err := svc.Get(ctxB, b.ID, priv.ID, ch); !errors.Is(err, errs.ErrNotFound) {
 		t.Fatalf("private get %v", err)
 	}
-	liked, err := svc.Like(ctxB, b.ID, pub.ID)
+	liked, err := svc.Like(ctxB, b.ID, pub.ID, ch)
 	if err != nil || !liked.Liked {
 		t.Fatal(liked, err)
 	}
-	notices, err := svc.ListNotices(ctxA, a.ID, 0, 20)
+	notices, err := svc.ListNotices(ctxA, a.ID, ch, 0, 20)
 	if err != nil || len(notices.Items) != 1 || notices.Items[0].Kind != entity.NoticeLike {
 		t.Fatalf("notice %+v %v", notices, err)
 	}
-	unread, err := svc.NoticeUnread(ctxA, a.ID)
+	unread, err := svc.NoticeUnread(ctxA, a.ID, ch)
 	if err != nil || !unread.HasNew {
 		t.Fatalf("unread %+v", unread)
 	}
@@ -117,16 +118,17 @@ func TestSquareExcludeIncludeAndUserPosts(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	ch := entity.ChannelSquare
 	ctxA := ctxUser(t, a.ID, "10.0.0.1")
 	ctxB := ctxUser(t, b.ID, "10.0.0.2")
 	ctxC := ctxUser(t, c.ID, "10.0.0.3")
-	excl, err := svc.Publish(ctxA, a.ID, &PublishInput{
+	excl, err := svc.Publish(ctxA, a.ID, ch, &PublishInput{
 		Text: "hide from b", Visibility: entity.VisibilityExclude, AudienceUIDs: []int64{b.ID},
 	})
 	if err != nil {
 		t.Fatal(err)
 	}
-	feedB, err := svc.Feed(ctxB, b.ID, 0, 20)
+	feedB, err := svc.Feed(ctxB, b.ID, ch, FeedQuery{Limit: 20})
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -135,17 +137,17 @@ func TestSquareExcludeIncludeAndUserPosts(t *testing.T) {
 			t.Fatal("excluded user still sees post in feed")
 		}
 	}
-	feedC, err := svc.Feed(ctxC, c.ID, 0, 20)
+	feedC, err := svc.Feed(ctxC, c.ID, ch, FeedQuery{Limit: 20})
 	if err != nil || len(feedC.Items) != 1 {
 		t.Fatalf("stranger feed %+v %v", feedC, err)
 	}
-	incl, err := svc.Publish(ctxA, a.ID, &PublishInput{
+	incl, err := svc.Publish(ctxA, a.ID, ch, &PublishInput{
 		Text: "only b", Visibility: entity.VisibilityInclude, AudienceUIDs: []int64{b.ID},
 	})
 	if err != nil {
 		t.Fatal(err)
 	}
-	feedC, err = svc.Feed(ctxC, c.ID, 0, 20)
+	feedC, err = svc.Feed(ctxC, c.ID, ch, FeedQuery{Limit: 20})
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -154,7 +156,7 @@ func TestSquareExcludeIncludeAndUserPosts(t *testing.T) {
 			t.Fatal("include post leaked to stranger feed")
 		}
 	}
-	album, err := svc.UserPosts(ctxB, b.ID, a.ID, 0, 20)
+	album, err := svc.UserPosts(ctxB, b.ID, a.ID, ch, 0, 20)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -170,7 +172,7 @@ func TestSquareExcludeIncludeAndUserPosts(t *testing.T) {
 	if !sawIncl {
 		t.Fatalf("include missing from album %+v", album)
 	}
-	if _, err := svc.Get(ctxB, b.ID, incl.ID); err != nil {
+	if _, err := svc.Get(ctxB, b.ID, incl.ID, ch); err != nil {
 		t.Fatalf("include get %v", err)
 	}
 }
@@ -179,59 +181,60 @@ func TestSquareUnlikeCommentDeleteAndPurge(t *testing.T) {
 	svc, friends, users := testSquare(t)
 	a, b := twoAccounts(t, users)
 	becomeFriends(t, friends, a, b)
+	ch := entity.ChannelSquare
 	ctxA := ctxUser(t, a.ID, "10.0.0.1")
 	ctxB := ctxUser(t, b.ID, "10.0.0.2")
-	post, err := svc.Publish(ctxA, a.ID, &PublishInput{Text: "hi"})
+	post, err := svc.Publish(ctxA, a.ID, ch, &PublishInput{Text: "hi"})
 	if err != nil {
 		t.Fatal(err)
 	}
-	if _, err := svc.Like(ctxB, b.ID, post.ID); err != nil {
+	if _, err := svc.Like(ctxB, b.ID, post.ID, ch); err != nil {
 		t.Fatal(err)
 	}
-	unliked, err := svc.Unlike(ctxB, b.ID, post.ID)
+	unliked, err := svc.Unlike(ctxB, b.ID, post.ID, ch)
 	if err != nil || unliked.Liked || unliked.LikeCount != 0 {
 		t.Fatalf("unlike %+v %v", unliked, err)
 	}
-	commented, err := svc.Comment(ctxB, b.ID, post.ID, &CommentInput{Text: "nice"})
+	commented, err := svc.Comment(ctxB, b.ID, post.ID, ch, &CommentInput{Text: "nice"})
 	if err != nil || commented.CommentCount != 1 {
 		t.Fatalf("comment %+v %v", commented, err)
 	}
 	cid := commented.Comments[0].ID
-	replied, err := svc.Comment(ctxA, a.ID, post.ID, &CommentInput{Text: "thanks", ReplyToID: cid})
+	replied, err := svc.Comment(ctxA, a.ID, post.ID, ch, &CommentInput{Text: "thanks", ReplyToID: cid})
 	if err != nil || replied.CommentCount != 2 {
 		t.Fatalf("reply %+v %v", replied, err)
 	}
-	if _, err := svc.DeleteComment(ctxB, b.ID, post.ID, cid); err != nil {
+	if _, err := svc.DeleteComment(ctxB, b.ID, post.ID, cid, ch); err != nil {
 		t.Fatal(err)
 	}
-	got, err := svc.Get(ctxA, a.ID, post.ID)
+	got, err := svc.Get(ctxA, a.ID, post.ID, ch)
 	if err != nil || got.CommentCount != 1 {
 		t.Fatalf("deleted comment %+v %v", got, err)
 	}
-	if err := svc.Delete(ctxA, a.ID, post.ID); err != nil {
+	if err := svc.Delete(ctxA, a.ID, post.ID, ch); err != nil {
 		t.Fatal(err)
 	}
-	feed, err := svc.Feed(ctxB, b.ID, 0, 20)
+	feed, err := svc.Feed(ctxB, b.ID, ch, FeedQuery{Limit: 20})
 	if err != nil || len(feed.Items) != 0 {
 		t.Fatalf("deleted feed %+v %v", feed, err)
 	}
-	post2, err := svc.Publish(ctxA, a.ID, &PublishInput{
+	post2, err := svc.Publish(ctxA, a.ID, ch, &PublishInput{
 		Images: []*entity.Image{{Key: "perm/square/image/20260922/abcdefghijklmnop.jpg"}},
 	})
 	if err != nil {
 		t.Fatal(err)
 	}
-	if err := svc.ReadNotices(ctxA, a.ID, &NoticeReadInput{Cursor: 0}); err != nil {
+	if err := svc.ReadNotices(ctxA, a.ID, ch, &NoticeReadInput{Cursor: 0}); err != nil {
 		t.Fatal(err)
 	}
-	unread, err := svc.NoticeUnread(ctxA, a.ID)
+	unread, err := svc.NoticeUnread(ctxA, a.ID, ch)
 	if err != nil || unread.HasNew {
 		t.Fatalf("after read %+v %v", unread, err)
 	}
 	if err := svc.PurgeUser(ctxA, a.ID); err != nil {
 		t.Fatal(err)
 	}
-	if _, err := svc.Get(ctxA, a.ID, post2.ID); !errors.Is(err, errs.ErrNotFound) {
+	if _, err := svc.Get(ctxA, a.ID, post2.ID, ch); !errors.Is(err, errs.ErrNotFound) {
 		t.Fatalf("purged get %v", err)
 	}
 }
@@ -240,10 +243,49 @@ func TestSquareImageKeyRejectedIfChatPrefix(t *testing.T) {
 	svc, _, users := testSquare(t)
 	a, _ := twoAccounts(t, users)
 	ctx := ctxUser(t, a.ID, "10.0.0.1")
-	_, err := svc.Publish(ctx, a.ID, &PublishInput{
+	_, err := svc.Publish(ctx, a.ID, entity.ChannelSquare, &PublishInput{
 		Images: []*entity.Image{{Key: "chat/image/20260918/xxxx.jpg"}},
 	})
 	if err == nil {
 		t.Fatal("accepted chat key")
 	}
 }
+
+func TestSquareChannelIsolationAndCategory(t *testing.T) {
+	svc, friends, users := testSquare(t)
+	a, b := twoAccounts(t, users)
+	becomeFriends(t, friends, a, b)
+	ctxA := ctxUser(t, a.ID, "10.0.0.1")
+	ctxB := ctxUser(t, b.ID, "10.0.0.2")
+	main, err := svc.Publish(ctxA, a.ID, entity.ChannelSquare, &PublishInput{Text: "main", Category: entity.CategoryFunny})
+	if err != nil {
+		t.Fatal(err)
+	}
+	novel, err := svc.Publish(ctxA, a.ID, entity.ChannelSquareNovel, &PublishInput{Text: "novel", Category: entity.CategoryBeauty})
+	if err != nil {
+		t.Fatal(err)
+	}
+	feedMain, err := svc.Feed(ctxB, b.ID, entity.ChannelSquare, FeedQuery{Limit: 20})
+	if err != nil || len(feedMain.Items) != 1 || feedMain.Items[0].ID != main.ID {
+		t.Fatalf("main feed %+v %v", feedMain, err)
+	}
+	feedNovel, err := svc.Feed(ctxB, b.ID, entity.ChannelSquareNovel, FeedQuery{Limit: 20})
+	if err != nil || len(feedNovel.Items) != 1 || feedNovel.Items[0].ID != novel.ID {
+		t.Fatalf("novel feed %+v %v", feedNovel, err)
+	}
+	if _, err := svc.Get(ctxB, b.ID, novel.ID, entity.ChannelSquare); !errors.Is(err, errs.ErrNotFound) {
+		t.Fatalf("cross-channel get %v", err)
+	}
+	funny, err := svc.Feed(ctxB, b.ID, entity.ChannelSquare, FeedQuery{Category: entity.CategoryFunny, Limit: 20})
+	if err != nil || len(funny.Items) != 1 || funny.Items[0].Category != entity.CategoryFunny {
+		t.Fatalf("funny %+v %v", funny, err)
+	}
+	beauty, err := svc.Feed(ctxB, b.ID, entity.ChannelSquare, FeedQuery{Category: entity.CategoryBeauty, Limit: 20})
+	if err != nil || len(beauty.Items) != 0 {
+		t.Fatalf("beauty on main %+v %v", beauty, err)
+	}
+	cats := svc.Categories()
+	if len(cats) < 6 {
+		t.Fatalf("categories %+v", cats)
+	}
+}
diff --git a/internal/module/square/logic/view.go b/internal/module/square/logic/view.go
index 055d5b2..114ebdd 100644
--- a/internal/module/square/logic/view.go
+++ b/internal/module/square/logic/view.go
@@ -29,6 +29,8 @@ type CommentView struct {
 
 type View struct {
 	ID           int64             `json:"id"`
+	Channel      entity.Channel    `json:"channel"`
+	Category     entity.Category   `json:"category,omitempty"`
 	User         UserCard          `json:"user"`
 	Kind         entity.Kind       `json:"kind"`
 	Text         string            `json:"text"`
@@ -49,17 +51,21 @@ type ListResult struct {
 	HasMore    bool    `json:"has_more"`
 }
 
-func (s *Service) Get(ctx context.Context, viewerID, postID int64) (*View, error) {
+func (s *Service) Get(ctx context.Context, viewerID, postID int64, channel entity.Channel) (*View, error) {
 	if !s.ready() || viewerID <= 0 {
 		return nil, errs.ErrUnauthorized
 	}
 	if postID <= 0 {
 		return nil, errs.ErrInvalidArgument
 	}
+	channel = normalizeChannel(channel)
 	post, err := s.repo.GetPost(ctx, postID)
 	if err != nil {
 		return nil, err
 	}
+	if normalizeChannel(post.Channel) != channel {
+		return nil, errs.ErrNotFound
+	}
 	vis, err := s.visFor(ctx, viewerID, []*entity.Post{post})
 	if err != nil {
 		return nil, err
diff --git a/internal/module/square/model/memory.go b/internal/module/square/model/memory.go
index 4197f0e..64c540d 100644
--- a/internal/module/square/model/memory.go
+++ b/internal/module/square/model/memory.go
@@ -2,6 +2,7 @@ package model
 
 import (
 	"context"
+	"math"
 	"sort"
 	"sync"
 	"time"
@@ -15,6 +16,11 @@ type likeKey struct {
 	UserID int64
 }
 
+type noticeStateKey struct {
+	UserID  int64
+	Channel entity.Channel
+}
+
 // MemoryRepo is an in-process square store for tests and empty-DSN bring-up.
 type MemoryRepo struct {
 	mu          sync.Mutex
@@ -23,7 +29,7 @@ type MemoryRepo struct {
 	likes       map[likeKey]*entity.Like
 	comments    map[int64]*entity.Comment
 	notices     map[int64]*entity.Notice
-	noticeState map[int64]*entity.NoticeState
+	noticeState map[noticeStateKey]*entity.NoticeState
 	botLinks    map[string]int64 // url -> post_id
 }
 
@@ -34,11 +40,18 @@ func NewMemoryRepo() *MemoryRepo {
 		likes:       make(map[likeKey]*entity.Like),
 		comments:    make(map[int64]*entity.Comment),
 		notices:     make(map[int64]*entity.Notice),
-		noticeState: make(map[int64]*entity.NoticeState),
+		noticeState: make(map[noticeStateKey]*entity.NoticeState),
 		botLinks:    make(map[string]int64),
 	}
 }
 
+func memChannel(ch entity.Channel) entity.Channel {
+	if ch == "" {
+		return entity.ChannelSquare
+	}
+	return ch
+}
+
 func (m *MemoryRepo) GetPost(_ context.Context, id int64) (*entity.Post, error) {
 	m.mu.Lock()
 	defer m.mu.Unlock()
@@ -49,14 +62,15 @@ func (m *MemoryRepo) GetPost(_ context.Context, id int64) (*entity.Post, error)
 	return clonePost(row), nil
 }
 
-func (m *MemoryRepo) ListByAuthors(_ context.Context, authorIDs []int64, cursor int64, limit int) ([]*entity.Post, error) {
+func (m *MemoryRepo) ListByAuthors(_ context.Context, channel entity.Channel, authorIDs []int64, cursor int64, limit int) ([]*entity.Post, error) {
 	m.mu.Lock()
 	defer m.mu.Unlock()
+	ch := memChannel(channel)
 	allow := toSet(authorIDs)
 	nowMS := time.Now().UnixMilli()
 	out := make([]*entity.Post, 0)
 	for _, row := range m.posts {
-		if row.Status != entity.StatusNormal || !allow[row.UserID] {
+		if row.Status != entity.StatusNormal || !allow[row.UserID] || memChannel(row.Channel) != ch {
 			continue
 		}
 		if row.Expired(nowMS) {
@@ -74,8 +88,8 @@ func (m *MemoryRepo) ListByAuthors(_ context.Context, authorIDs []int64, cursor
 	return out, nil
 }
 
-func (m *MemoryRepo) ListByAuthor(ctx context.Context, authorID, cursor int64, limit int) ([]*entity.Post, error) {
-	return m.ListByAuthors(ctx, []int64{authorID}, cursor, limit)
+func (m *MemoryRepo) ListByAuthor(ctx context.Context, channel entity.Channel, authorID, cursor int64, limit int) ([]*entity.Post, error) {
+	return m.ListByAuthors(ctx, channel, []int64{authorID}, cursor, limit)
 }
 
 func (m *MemoryRepo) ListAudience(_ context.Context, postIDs []int64) (map[int64][]int64, error) {
@@ -137,61 +151,136 @@ func (m *MemoryRepo) GetComment(_ context.Context, id int64) (*entity.Comment, e
 	return cloneComment(row), nil
 }
 
-func (m *MemoryRepo) ListPublicFeed(_ context.Context, cursor int64, limit int) ([]*entity.Post, error) {
+func (m *MemoryRepo) ListPublicFeed(_ context.Context, channel entity.Channel, q entity.FeedListQuery) ([]*entity.Post, error) {
 	m.mu.Lock()
 	defer m.mu.Unlock()
 	nowMS := time.Now().UnixMilli()
+	ch := memChannel(channel)
 	out := make([]*entity.Post, 0)
 	for _, row := range m.posts {
 		if row.Status != entity.StatusNormal || row.AuditStatus != entity.AuditApproved {
 			continue
 		}
+		if memChannel(row.Channel) != ch {
+			continue
+		}
 		if row.Visibility != entity.VisibilityPublic && row.Visibility != entity.VisibilityExclude {
 			continue
 		}
 		if row.Expired(nowMS) {
 			continue
 		}
-		if cursor > 0 && row.ID >= cursor {
+		if q.Category.IsTag() && row.Category != q.Category {
+			continue
+		}
+		if q.Category == entity.CategoryNearby && row.POI.Lat == 0 && row.POI.Lng == 0 {
 			continue
 		}
 		out = append(out, clonePost(row))
 	}
-	sort.Slice(out, func(i, j int) bool { return out[i].ID > out[j].ID })
-	if limit > 0 && len(out) > limit {
-		out = out[:limit]
+	switch q.Category {
+	case entity.CategoryHot:
+		sort.Slice(out, func(i, j int) bool {
+			if out[i].LikeCount == out[j].LikeCount {
+				return out[i].ID > out[j].ID
+			}
+			return out[i].LikeCount > out[j].LikeCount
+		})
+		if q.Cursor > 0 {
+			var lc int
+			var found bool
+			for _, p := range out {
+				if p.ID == q.Cursor {
+					lc = p.LikeCount
+					found = true
+					break
+				}
+			}
+			filtered := make([]*entity.Post, 0, len(out))
+			for _, p := range out {
+				if !found {
+					if p.ID < q.Cursor {
+						filtered = append(filtered, p)
+					}
+					continue
+				}
+				if p.LikeCount < lc || (p.LikeCount == lc && p.ID < q.Cursor) {
+					filtered = append(filtered, p)
+				}
+			}
+			out = filtered
+		}
+	case entity.CategoryNearby:
+		if q.Lat != 0 || q.Lng != 0 {
+			sort.SliceStable(out, func(i, j int) bool {
+				di := math.Abs(q.Lat-out[i].POI.Lat) + math.Abs(q.Lng-out[i].POI.Lng)
+				dj := math.Abs(q.Lat-out[j].POI.Lat) + math.Abs(q.Lng-out[j].POI.Lng)
+				if di == dj {
+					return out[i].ID > out[j].ID
+				}
+				return di < dj
+			})
+		} else {
+			sort.Slice(out, func(i, j int) bool { return out[i].ID > out[j].ID })
+		}
+		if q.Cursor > 0 {
+			filtered := make([]*entity.Post, 0, len(out))
+			for _, p := range out {
+				if p.ID < q.Cursor {
+					filtered = append(filtered, p)
+				}
+			}
+			out = filtered
+		}
+	default:
+		sort.Slice(out, func(i, j int) bool { return out[i].ID > out[j].ID })
+		if q.Cursor > 0 {
+			filtered := make([]*entity.Post, 0, len(out))
+			for _, p := range out {
+				if p.ID < q.Cursor {
+					filtered = append(filtered, p)
+				}
+			}
+			out = filtered
+		}
+	}
+	if q.Limit > 0 && len(out) > q.Limit {
+		out = out[:q.Limit]
 	}
 	return out, nil
 }
 
-func (m *MemoryRepo) GetNoticeState(_ context.Context, userID int64) (*entity.NoticeState, error) {
+func (m *MemoryRepo) GetNoticeState(_ context.Context, userID int64, channel entity.Channel) (*entity.NoticeState, error) {
 	m.mu.Lock()
 	defer m.mu.Unlock()
-	if row, ok := m.noticeState[userID]; ok {
+	ch := memChannel(channel)
+	if row, ok := m.noticeState[noticeStateKey{UserID: userID, Channel: ch}]; ok {
 		cp := *row
 		return &cp, nil
 	}
-	return entity.DefaultNoticeState(userID), nil
+	return entity.DefaultNoticeState(userID, ch), nil
 }
 
-func (m *MemoryRepo) LatestNoticeID(_ context.Context, userID int64) (int64, error) {
+func (m *MemoryRepo) LatestNoticeID(_ context.Context, userID int64, channel entity.Channel) (int64, error) {
 	m.mu.Lock()
 	defer m.mu.Unlock()
+	ch := memChannel(channel)
 	var latest int64
 	for _, n := range m.notices {
-		if n.ToUserID == userID && n.ID > latest {
+		if n.ToUserID == userID && memChannel(n.Channel) == ch && n.ID > latest {
 			latest = n.ID
 		}
 	}
 	return latest, nil
 }
 
-func (m *MemoryRepo) ListNotices(_ context.Context, userID, cursor int64, limit int) ([]*entity.Notice, error) {
+func (m *MemoryRepo) ListNotices(_ context.Context, userID int64, channel entity.Channel, cursor int64, limit int) ([]*entity.Notice, error) {
 	m.mu.Lock()
 	defer m.mu.Unlock()
+	ch := memChannel(channel)
 	out := make([]*entity.Notice, 0)
 	for _, n := range m.notices {
-		if n.ToUserID != userID {
+		if n.ToUserID != userID || memChannel(n.Channel) != ch {
 			continue
 		}
 		if cursor > 0 && n.ID >= cursor {
@@ -223,6 +312,9 @@ func clonePost(p *entity.Post) *entity.Post {
 	if p.Content != nil {
 		cp.Content = append([]byte(nil), p.Content...)
 	}
+	if cp.Channel == "" {
+		cp.Channel = entity.ChannelSquare
+	}
 	return &cp
 }
 
diff --git a/internal/module/square/model/memory_purge.go b/internal/module/square/model/memory_purge.go
index 1c645b2..6e442fe 100644
--- a/internal/module/square/model/memory_purge.go
+++ b/internal/module/square/model/memory_purge.go
@@ -78,7 +78,11 @@ func (m *MemoryRepo) PurgeUser(_ context.Context, userID int64) error {
 		}
 		m.audience[postID] = kept
 	}
-	delete(m.noticeState, userID)
+	for key := range m.noticeState {
+		if key.UserID == userID {
+			delete(m.noticeState, key)
+		}
+	}
 	for id := range owned {
 		delete(m.posts, id)
 		delete(m.audience, id)
diff --git a/internal/module/square/model/memory_write.go b/internal/module/square/model/memory_write.go
index 59eecea..57128e7 100644
--- a/internal/module/square/model/memory_write.go
+++ b/internal/module/square/model/memory_write.go
@@ -18,7 +18,11 @@ func (m *MemoryRepo) CreatePost(_ context.Context, post *entity.Post, audience [
 	if _, ok := m.posts[post.ID]; ok {
 		return errs.ErrDuplicate
 	}
-	m.posts[post.ID] = clonePost(post)
+	cp := clonePost(post)
+	if cp.Channel == "" {
+		cp.Channel = entity.ChannelSquare
+	}
+	m.posts[post.ID] = cp
 	if len(audience) > 0 {
 		m.audience[post.ID] = append([]int64(nil), audience...)
 	}
@@ -167,17 +171,21 @@ func (m *MemoryRepo) CreateNotices(_ context.Context, rows []*entity.Notice) err
 			return errs.ErrDuplicate
 		}
 		cp := *n
+		if cp.Channel == "" {
+			cp.Channel = entity.ChannelSquare
+		}
 		m.notices[n.ID] = &cp
 	}
 	return nil
 }
 
-func (m *MemoryRepo) MarkNoticesRead(_ context.Context, userID, cursor int64) error {
+func (m *MemoryRepo) MarkNoticesRead(_ context.Context, userID int64, channel entity.Channel, cursor int64) error {
 	m.mu.Lock()
 	defer m.mu.Unlock()
+	ch := memChannel(channel)
 	now := time.Now().UnixMilli()
 	for _, n := range m.notices {
-		if n.ToUserID != userID || n.ReadAtMS > 0 {
+		if n.ToUserID != userID || memChannel(n.Channel) != ch || n.ReadAtMS > 0 {
 			continue
 		}
 		if cursor > 0 && n.ID > cursor {
@@ -188,16 +196,18 @@ func (m *MemoryRepo) MarkNoticesRead(_ context.Context, userID, cursor int64) er
 	return nil
 }
 
-func (m *MemoryRepo) AdvanceNoticeRead(_ context.Context, userID, noticeID int64) error {
+func (m *MemoryRepo) AdvanceNoticeRead(_ context.Context, userID int64, channel entity.Channel, noticeID int64) error {
 	if userID <= 0 || noticeID <= 0 {
 		return errs.ErrInvalidArgument
 	}
 	m.mu.Lock()
 	defer m.mu.Unlock()
-	cur := m.noticeState[userID]
+	ch := memChannel(channel)
+	key := noticeStateKey{UserID: userID, Channel: ch}
+	cur := m.noticeState[key]
 	if cur == nil {
-		cur = entity.DefaultNoticeState(userID)
-		m.noticeState[userID] = cur
+		cur = entity.DefaultNoticeState(userID, ch)
+		m.noticeState[key] = cur
 	}
 	if cur.LastReadNoticeID >= noticeID {
 		return nil
diff --git a/internal/module/square/model/post.go b/internal/module/square/model/post.go
index d242638..8b6cf6f 100644
--- a/internal/module/square/model/post.go
+++ b/internal/module/square/model/post.go
@@ -10,6 +10,8 @@ import (
 type Post struct {
 	ID           int64      `gorm:"column:id;primaryKey;autoIncrement:false;comment:Snowflake 帖 id"`
 	UserID       int64      `gorm:"column:user_id;comment:作者 users.id"`
+	Channel      string     `gorm:"column:channel;comment:广场实例"`
+	Category     string     `gorm:"column:category;comment:内容标签"`
 	Kind         int16      `gorm:"column:kind;comment:1纯文 2图 3视频"`
 	Text         string     `gorm:"column:text;comment:正文"`
 	Content      []byte     `gorm:"column:content;type:varbinary(16384);comment:序列化 JSON 字节"`
@@ -36,8 +38,13 @@ func (r *Post) Entity() *entity.Post {
 	if r == nil {
 		return nil
 	}
+	ch := entity.Channel(r.Channel)
+	if ch == "" {
+		ch = entity.ChannelSquare
+	}
 	p := &entity.Post{
-		ID: r.ID, UserID: r.UserID, Kind: entity.Kind(r.Kind), Text: r.Text, Content: r.Content,
+		ID: r.ID, UserID: r.UserID, Channel: ch, Category: entity.Category(r.Category),
+		Kind: entity.Kind(r.Kind), Text: r.Text, Content: r.Content,
 		POI:        entity.POI{Lat: r.POILat, Lng: r.POILng, Name: r.POIName, Address: r.POIAddress},
 		Visibility: entity.Visibility(r.Visibility), AuditStatus: entity.AuditStatus(r.AuditStatus),
 		Status: entity.Status(r.Status), Source: entity.Source(r.Source), SourceURL: r.SourceURL,
@@ -53,8 +60,13 @@ func postFrom(p *entity.Post) *Post {
 	if p == nil {
 		return nil
 	}
+	ch := string(p.Channel)
+	if ch == "" {
+		ch = string(entity.ChannelSquare)
+	}
 	row := &Post{
-		ID: p.ID, UserID: p.UserID, Kind: int16(p.Kind), Text: p.Text, Content: p.Content,
+		ID: p.ID, UserID: p.UserID, Channel: ch, Category: string(p.Category),
+		Kind: int16(p.Kind), Text: p.Text, Content: p.Content,
 		POILat: p.POI.Lat, POILng: p.POI.Lng, POIName: p.POI.Name, POIAddress: p.POI.Address,
 		Visibility: int16(p.Visibility), AuditStatus: int16(p.AuditStatus), Status: int16(p.Status),
 		Source: int16(p.Source), SourceURL: p.SourceURL, LikeCount: p.LikeCount, CommentCount: p.CommentCount,
@@ -152,6 +164,7 @@ func commentFrom(c *entity.Comment) *Comment {
 type Notice struct {
 	ID         int64      `gorm:"column:id;primaryKey;autoIncrement:false;comment:Snowflake 通知 id"`
 	ToUserID   int64      `gorm:"column:to_user_id;comment:接收人"`
+	Channel    string     `gorm:"column:channel;comment:广场实例"`
 	FromUserID int64      `gorm:"column:from_user_id;comment:发起人"`
 	Kind       int16      `gorm:"column:kind;comment:1赞 2评论 3回复"`
 	PostID     int64      `gorm:"column:post_id;comment:帖 id"`
@@ -166,8 +179,12 @@ func (r *Notice) Entity() *entity.Notice {
 	if r == nil {
 		return nil
 	}
+	ch := entity.Channel(r.Channel)
+	if ch == "" {
+		ch = entity.ChannelSquare
+	}
 	n := &entity.Notice{
-		ID: r.ID, ToUserID: r.ToUserID, FromUserID: r.FromUserID, Kind: entity.NoticeKind(r.Kind),
+		ID: r.ID, ToUserID: r.ToUserID, Channel: ch, FromUserID: r.FromUserID, Kind: entity.NoticeKind(r.Kind),
 		PostID: r.PostID, CommentID: r.CommentID, CreatedAtMS: r.CreatedAt.UnixMilli(),
 	}
 	if r.ReadAt != nil {
@@ -179,6 +196,7 @@ func (r *Notice) Entity() *entity.Notice {
 // NoticeState maps square_notice_state.
 type NoticeState struct {
 	UserID           int64     `gorm:"column:user_id;primaryKey;comment:用户 id"`
+	Channel          string    `gorm:"column:channel;primaryKey;comment:广场实例"`
 	LastReadNoticeID int64     `gorm:"column:last_read_notice_id;comment:已读水位"`
 	UpdatedAt        time.Time `gorm:"column:updated_at;comment:更新时间"`
 }
@@ -189,7 +207,11 @@ func (r *NoticeState) Entity() *entity.NoticeState {
 	if r == nil {
 		return nil
 	}
+	ch := entity.Channel(r.Channel)
+	if ch == "" {
+		ch = entity.ChannelSquare
+	}
 	return &entity.NoticeState{
-		UserID: r.UserID, LastReadNoticeID: r.LastReadNoticeID, UpdatedAtMS: r.UpdatedAt.UnixMilli(),
+		UserID: r.UserID, Channel: ch, LastReadNoticeID: r.LastReadNoticeID, UpdatedAtMS: r.UpdatedAt.UnixMilli(),
 	}
 }
diff --git a/internal/module/square/model/query.go b/internal/module/square/model/query.go
index 498f4a0..c96a074 100644
--- a/internal/module/square/model/query.go
+++ b/internal/module/square/model/query.go
@@ -3,6 +3,8 @@ package model
 import (
 	"context"
 	"errors"
+	"math"
+	"sort"
 	"time"
 
 	"gorm.io/gorm"
@@ -25,7 +27,7 @@ func (m *Repo) GetPost(ctx context.Context, id int64) (*entity.Post, error) {
 	return row.Entity(), nil
 }
 
-func (m *Repo) ListByAuthors(ctx context.Context, authorIDs []int64, cursor int64, limit int) ([]*entity.Post, error) {
+func (m *Repo) ListByAuthors(ctx context.Context, channel entity.Channel, authorIDs []int64, cursor int64, limit int) ([]*entity.Post, error) {
 	if len(authorIDs) == 0 {
 		return []*entity.Post{}, nil
 	}
@@ -33,7 +35,8 @@ func (m *Repo) ListByAuthors(ctx context.Context, authorIDs []int64, cursor int6
 	if err != nil {
 		return nil, err
 	}
-	q := db.Where("user_id IN ? AND status = ? AND "+notExpiredSQL, authorIDs, entity.StatusNormal, time.Now())
+	ch := normalizeChannel(channel)
+	q := db.Where("channel = ? AND user_id IN ? AND status = ? AND "+notExpiredSQL, ch, authorIDs, entity.StatusNormal, time.Now())
 	if cursor > 0 {
 		q = q.Where("id < ?", cursor)
 	}
@@ -44,31 +47,113 @@ func (m *Repo) ListByAuthors(ctx context.Context, authorIDs []int64, cursor int6
 	return collectPosts(rows), nil
 }
 
-func (m *Repo) ListByAuthor(ctx context.Context, authorID, cursor int64, limit int) ([]*entity.Post, error) {
-	return m.ListByAuthors(ctx, []int64{authorID}, cursor, limit)
+func (m *Repo) ListByAuthor(ctx context.Context, channel entity.Channel, authorID, cursor int64, limit int) ([]*entity.Post, error) {
+	return m.ListByAuthors(ctx, channel, []int64{authorID}, cursor, limit)
 }
 
-func (m *Repo) ListPublicFeed(ctx context.Context, cursor int64, limit int) ([]*entity.Post, error) {
+func (m *Repo) ListPublicFeed(ctx context.Context, channel entity.Channel, q entity.FeedListQuery) ([]*entity.Post, error) {
 	db, err := m.session(ctx)
 	if err != nil {
 		return nil, err
 	}
-	q := db.Where(
-		"audit_status = ? AND status = ? AND visibility IN ? AND "+notExpiredSQL,
-		entity.AuditApproved, entity.StatusNormal,
+	ch := normalizeChannel(channel)
+	base := db.Where(
+		"channel = ? AND audit_status = ? AND status = ? AND visibility IN ? AND "+notExpiredSQL,
+		ch, entity.AuditApproved, entity.StatusNormal,
 		[]int16{int16(entity.VisibilityPublic), int16(entity.VisibilityExclude)},
 		time.Now(),
 	)
-	if cursor > 0 {
-		q = q.Where("id < ?", cursor)
+	if q.Category.IsTag() {
+		base = base.Where("category = ?", string(q.Category))
+	}
+	switch q.Category {
+	case entity.CategoryHot:
+		return listHotFeed(base, q)
+	case entity.CategoryNearby:
+		return listNearbyFeed(base, q)
+	default:
+		return listLatestFeed(base, q)
+	}
+}
+
+func listLatestFeed(base *gorm.DB, q entity.FeedListQuery) ([]*entity.Post, error) {
+	query := base
+	if q.Cursor > 0 {
+		query = query.Where("id < ?", q.Cursor)
 	}
 	var rows []Post
-	if err := q.Order("id DESC").Limit(limit).Find(&rows).Error; err != nil {
+	if err := query.Order("id DESC").Limit(q.Limit).Find(&rows).Error; err != nil {
 		return nil, mapDBErr(err)
 	}
 	return collectPosts(rows), nil
 }
 
+func listHotFeed(base *gorm.DB, q entity.FeedListQuery) ([]*entity.Post, error) {
+	query := base
+	if q.Cursor > 0 {
+		var cur Post
+		if err := base.Session(&gorm.Session{}).Where("id = ?", q.Cursor).Take(&cur).Error; err == nil {
+			query = query.Where(
+				"(like_count < ? OR (like_count = ? AND id < ?))",
+				cur.LikeCount, cur.LikeCount, cur.ID,
+			)
+		} else {
+			query = query.Where("id < ?", q.Cursor)
+		}
+	}
+	var rows []Post
+	if err := query.Order("like_count DESC, id DESC").Limit(q.Limit).Find(&rows).Error; err != nil {
+		return nil, mapDBErr(err)
+	}
+	return collectPosts(rows), nil
+}
+
+func listNearbyFeed(base *gorm.DB, q entity.FeedListQuery) ([]*entity.Post, error) {
+	query := base.Where("(poi_lat <> 0 OR poi_lng <> 0)")
+	if q.Cursor > 0 {
+		query = query.Where("id < ?", q.Cursor)
+	}
+	// Over-fetch then sort by manhattan distance in process (nearby stub).
+	fetch := q.Limit
+	if fetch < 50 {
+		fetch = 50
+	}
+	var rows []Post
+	if err := query.Order("id DESC").Limit(fetch).Find(&rows).Error; err != nil {
+		return nil, mapDBErr(err)
+	}
+	posts := collectPosts(rows)
+	if q.Lat == 0 && q.Lng == 0 {
+		if q.Limit > 0 && len(posts) > q.Limit {
+			posts = posts[:q.Limit]
+		}
+		return posts, nil
+	}
+	sort.SliceStable(posts, func(i, j int) bool {
+		di := manhattan(q.Lat, q.Lng, posts[i].POI.Lat, posts[i].POI.Lng)
+		dj := manhattan(q.Lat, q.Lng, posts[j].POI.Lat, posts[j].POI.Lng)
+		if di == dj {
+			return posts[i].ID > posts[j].ID
+		}
+		return di < dj
+	})
+	if q.Limit > 0 && len(posts) > q.Limit {
+		posts = posts[:q.Limit]
+	}
+	return posts, nil
+}
+
+func manhattan(lat1, lng1, lat2, lng2 float64) float64 {
+	return math.Abs(lat1-lat2) + math.Abs(lng1-lng2)
+}
+
+func normalizeChannel(ch entity.Channel) string {
+	if ch == "" {
+		return string(entity.ChannelSquare)
+	}
+	return string(ch)
+}
+
 func (m *Repo) ListAudience(ctx context.Context, postIDs []int64) (map[int64][]int64, error) {
 	out := make(map[int64][]int64)
 	if len(postIDs) == 0 {
@@ -140,28 +225,30 @@ func (m *Repo) GetComment(ctx context.Context, id int64) (*entity.Comment, error
 	return row.Entity(), nil
 }
 
-func (m *Repo) GetNoticeState(ctx context.Context, userID int64) (*entity.NoticeState, error) {
+func (m *Repo) GetNoticeState(ctx context.Context, userID int64, channel entity.Channel) (*entity.NoticeState, error) {
 	db, err := m.session(ctx)
 	if err != nil {
 		return nil, err
 	}
+	ch := normalizeChannel(channel)
 	var row NoticeState
-	if err := db.Where("user_id = ?", userID).Take(&row).Error; err != nil {
+	if err := db.Where("user_id = ? AND channel = ?", userID, ch).Take(&row).Error; err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
-			return entity.DefaultNoticeState(userID), nil
+			return entity.DefaultNoticeState(userID, entity.Channel(ch)), nil
 		}
 		return nil, mapDBErr(err)
 	}
 	return row.Entity(), nil
 }
 
-func (m *Repo) LatestNoticeID(ctx context.Context, userID int64) (int64, error) {
+func (m *Repo) LatestNoticeID(ctx context.Context, userID int64, channel entity.Channel) (int64, error) {
 	db, err := m.session(ctx)
 	if err != nil {
 		return 0, err
 	}
+	ch := normalizeChannel(channel)
 	var row Notice
-	if err := db.Where("to_user_id = ?", userID).Order("id DESC").Limit(1).Take(&row).Error; err != nil {
+	if err := db.Where("to_user_id = ? AND channel = ?", userID, ch).Order("id DESC").Limit(1).Take(&row).Error; err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
 			return 0, nil
 		}
@@ -170,12 +257,13 @@ func (m *Repo) LatestNoticeID(ctx context.Context, userID int64) (int64, error)
 	return row.ID, nil
 }
 
-func (m *Repo) ListNotices(ctx context.Context, userID, cursor int64, limit int) ([]*entity.Notice, error) {
+func (m *Repo) ListNotices(ctx context.Context, userID int64, channel entity.Channel, cursor int64, limit int) ([]*entity.Notice, error) {
 	db, err := m.session(ctx)
 	if err != nil {
 		return nil, err
 	}
-	q := db.Where("to_user_id = ?", userID)
+	ch := normalizeChannel(channel)
+	q := db.Where("to_user_id = ? AND channel = ?", userID, ch)
 	if cursor > 0 {
 		q = q.Where("id < ?", cursor)
 	}
diff --git a/internal/module/square/model/write.go b/internal/module/square/model/write.go
index 0f6f7ef..aed00ec 100644
--- a/internal/module/square/model/write.go
+++ b/internal/module/square/model/write.go
@@ -163,7 +163,8 @@ func (m *Repo) CreateNotices(ctx context.Context, rows []*entity.Notice) error {
 	now := time.Now()
 	for _, n := range rows {
 		row := Notice{
-			ID: n.ID, ToUserID: n.ToUserID, FromUserID: n.FromUserID, Kind: int16(n.Kind),
+			ID: n.ID, ToUserID: n.ToUserID, Channel: normalizeChannel(n.Channel),
+			FromUserID: n.FromUserID, Kind: int16(n.Kind),
 			PostID: n.PostID, CommentID: n.CommentID, CreatedAt: now,
 		}
 		if n.CreatedAtMS > 0 {
@@ -176,19 +177,20 @@ func (m *Repo) CreateNotices(ctx context.Context, rows []*entity.Notice) error {
 	return nil
 }
 
-func (m *Repo) MarkNoticesRead(ctx context.Context, userID, cursor int64) error {
+func (m *Repo) MarkNoticesRead(ctx context.Context, userID int64, channel entity.Channel, cursor int64) error {
 	db, err := m.session(ctx)
 	if err != nil {
 		return err
 	}
-	q := db.Model(&Notice{}).Where("to_user_id = ? AND read_at IS NULL", userID)
+	ch := normalizeChannel(channel)
+	q := db.Model(&Notice{}).Where("to_user_id = ? AND channel = ? AND read_at IS NULL", userID, ch)
 	if cursor > 0 {
 		q = q.Where("id <= ?", cursor)
 	}
 	return mapDBErr(q.Update("read_at", time.Now()).Error)
 }
 
-func (m *Repo) AdvanceNoticeRead(ctx context.Context, userID, noticeID int64) error {
+func (m *Repo) AdvanceNoticeRead(ctx context.Context, userID int64, channel entity.Channel, noticeID int64) error {
 	if userID <= 0 || noticeID <= 0 {
 		return errs.ErrInvalidArgument
 	}
@@ -196,7 +198,8 @@ func (m *Repo) AdvanceNoticeRead(ctx context.Context, userID, noticeID int64) er
 	if err != nil {
 		return err
 	}
-	cur, err := m.GetNoticeState(ctx, userID)
+	ch := entity.Channel(normalizeChannel(channel))
+	cur, err := m.GetNoticeState(ctx, userID, ch)
 	if err != nil {
 		return err
 	}
@@ -206,11 +209,11 @@ func (m *Repo) AdvanceNoticeRead(ctx context.Context, userID, noticeID int64) er
 	cur.LastReadNoticeID = noticeID
 	cur.UpdatedAtMS = time.Now().UnixMilli()
 	row := NoticeState{
-		UserID: cur.UserID, LastReadNoticeID: cur.LastReadNoticeID,
+		UserID: cur.UserID, Channel: string(ch), LastReadNoticeID: cur.LastReadNoticeID,
 		UpdatedAt: time.UnixMilli(cur.UpdatedAtMS),
 	}
 	return mapDBErr(db.Clauses(clause.OnConflict{
-		Columns:   []clause.Column{{Name: "user_id"}},
+		Columns:   []clause.Column{{Name: "user_id"}, {Name: "channel"}},
 		DoUpdates: clause.AssignmentColumns([]string{"last_read_notice_id", "updated_at"}),
 	}).Create(&row).Error)
 }
diff --git a/internal/pkg/i18n/catalog_validate_square.go b/internal/pkg/i18n/catalog_validate_square.go
index 5063191..cf94ddb 100644
--- a/internal/pkg/i18n/catalog_validate_square.go
+++ b/internal/pkg/i18n/catalog_validate_square.go
@@ -20,6 +20,9 @@ func init() {
 		KeyFieldSquareNoticeCursor: {
 			ZhCN: "游标", En: "Cursor", ZhTW: "遊標",
 		},
+		KeyFieldSquareCategory: {
+			ZhCN: "分类", En: "Category", ZhTW: "分類",
+		},
 		KeySquareTextInvalid: {
 			ZhCN: "正文最多1000字", En: "Text must be at most 1000 characters", ZhTW: "正文最多1000字",
 		},
@@ -47,6 +50,9 @@ func init() {
 		KeySquareReplyInvalid: {
 			ZhCN: "回复目标无效", En: "Invalid reply target", ZhTW: "回覆目標無效",
 		},
+		KeySquareCategoryInvalid: {
+			ZhCN: "分类无效", En: "Invalid category", ZhTW: "分類無效",
+		},
 		"enum.square_kind.text":            {ZhCN: "纯文", En: "Text", ZhTW: "純文"},
 		"enum.square_kind.image":           {ZhCN: "图片", En: "Image", ZhTW: "圖片"},
 		"enum.square_kind.video":           {ZhCN: "视频", En: "Video", ZhTW: "影片"},
@@ -59,6 +65,16 @@ func init() {
 		"enum.square_notice_kind.like":     {ZhCN: "赞", En: "Like", ZhTW: "讚"},
 		"enum.square_notice_kind.comment":  {ZhCN: "评论", En: "Comment", ZhTW: "評論"},
 		"enum.square_notice_kind.reply":    {ZhCN: "回复", En: "Reply", ZhTW: "回覆"},
+		"enum.square_channel.square":       {ZhCN: "广场", En: "Square", ZhTW: "廣場"},
+		"enum.square_channel.squarenovel":  {ZhCN: "小说广场", En: "Novel square", ZhTW: "小說廣場"},
+		"enum.square_channel.squaresteps":  {ZhCN: "步数广场", En: "Steps square", ZhTW: "步數廣場"},
+		"enum.square_channel.squarehealth": {ZhCN: "健康广场", En: "Health square", ZhTW: "健康廣場"},
+		"enum.square_category.recommend":   {ZhCN: "推荐", En: "Recommend", ZhTW: "推薦"},
+		"enum.square_category.latest":      {ZhCN: "最新", En: "Latest", ZhTW: "最新"},
+		"enum.square_category.hot":         {ZhCN: "热门", En: "Hot", ZhTW: "熱門"},
+		"enum.square_category.nearby":      {ZhCN: "附近", En: "Nearby", ZhTW: "附近"},
+		"enum.square_category.funny":       {ZhCN: "搞笑", En: "Funny", ZhTW: "搞笑"},
+		"enum.square_category.beauty":      {ZhCN: "美女", En: "Beauty", ZhTW: "美女"},
 		"enum.upload_purpose.square_image": {ZhCN: "广场图片", En: "Square image", ZhTW: "广场圖片"},
 		"enum.upload_purpose.square_video": {ZhCN: "广场视频", En: "Square video", ZhTW: "广场影片"},
 	})
diff --git a/internal/pkg/i18n/keys.go b/internal/pkg/i18n/keys.go
index e5f2709..fa61205 100644
--- a/internal/pkg/i18n/keys.go
+++ b/internal/pkg/i18n/keys.go
@@ -161,6 +161,7 @@ const (
 	KeyFieldSquareComment      = "field.square_comment"
 	KeyFieldSquareReply        = "field.square_reply"
 	KeyFieldSquareNoticeCursor = "field.square_notice_cursor"
+	KeyFieldSquareCategory     = "field.square_category"
 	KeySquareTextInvalid       = "validate.square.text_invalid"
 	KeySquareVisibilityInvalid = "validate.square.visibility_invalid"
 	KeySquareAudienceInvalid   = "validate.square.audience_invalid"
@@ -170,6 +171,7 @@ const (
 	KeySquareCommentRequired   = "validate.square.comment_required"
 	KeySquareCommentInvalid    = "validate.square.comment_invalid"
 	KeySquareReplyInvalid      = "validate.square.reply_invalid"
+	KeySquareCategoryInvalid   = "validate.square.category_invalid"
 
 	KeyFieldVerificationTarget   = "field.verification_target"
 	KeySMSLanguageRequired       = "validate.sms.language_required"
diff --git a/internal/transport/http/auth.go b/internal/transport/http/auth.go
index a984c2b..a9c4838 100644
--- a/internal/transport/http/auth.go
+++ b/internal/transport/http/auth.go
@@ -102,6 +102,9 @@ func publicPath(path string) bool {
 		"/api/client/pop/developer-apps", "/api/client/spark/developer-apps":
 		return true
 	default:
+		if publicMusicPath(path) {
+			return true
+		}
 		// Admin routes use AdminAuth (Java popadmin JWT), not client Bearer.
 		if adminPath(path) {
 			return true
@@ -110,6 +113,16 @@ func publicPath(path string) bool {
 	}
 }
 
+func publicMusicPath(path string) bool {
+	switch path {
+	case "/v1/music/playlist", "/v1/music/playlist/grouped",
+		"/v1/music/categories", "/v1/music/settings":
+		return true
+	default:
+		return strings.HasPrefix(path, "/v1/music/tracks/")
+	}
+}
+
 func bearerToken(h string) (string, bool) {
 	if len(h) < len(bearerPrefix) || !strings.EqualFold(h[:len(bearerPrefix)], bearerPrefix) {
 		return "", false
diff --git a/internal/transport/http/docs/openapi.yaml b/internal/transport/http/docs/openapi.yaml
index 2baf4ff..751df2b 100644
--- a/internal/transport/http/docs/openapi.yaml
+++ b/internal/transport/http/docs/openapi.yaml
@@ -1,4 +1,4 @@
-openapi: 3.0.3
+openapi: 3.0.3
 info:
   title: Spark IM API
   version: 0.1.0
@@ -65,7 +65,7 @@ info:
 
     | Header | 放哪 | 必填 | 说明 |
     | --- | --- | --- | --- |
-    | `Authorization` | Header | 需登录的接口必填 | `Bearer <access_token>`。登录、发码、刷新、`/healthz`、`/readyz`、`/docs`、`/openapi.yaml`、`GET /v1/meta/enums`、`GET /v1/music/playlist`、`GET /v1/music/categories`、`GET /v1/music/settings` **不要**带。 |
+    | `Authorization` | Header | 需登录的接口必填 | `Bearer <access_token>`。登录、发码、刷新、`/healthz`、`/readyz`、`/docs`、`/openapi.yaml`、`GET /v1/meta/enums`、以及公开音乐读接口（`/v1/music/playlist`、`/v1/music/playlist/grouped`、`/v1/music/tracks/{id}`、`/v1/music/categories`、`/v1/music/settings`）**不要**带。 |
     | `X-Device-ID` | Header | 可选 | 十进制 `device_id`，须等于登录响应 / JWT `did`（**服务端按物理指纹生成**，客户端勿自造）。不一致则 `40101`。 |
     | `X-App-ID` | Header | 可选 | 若传，须与 JWT **`aid`（app_id）** 一致。 |
     | `X-Language` | Header | 可选 | `zh-CN` / `en` / `zh-TW`。优先于 `Accept-Language`。缺省 `zh-CN`。决定 `msg` 语言。 |
@@ -373,9 +373,16 @@ tags:
   - name: favorites
   - name: moments
   - name: square
+    description: |
+      多广场：路径 `/v1/{square_channel}/…`，channel=`square|squarenovel|squaresteps|squarehealth`。
+      分类 Tab：`GET …/categories`；Feed 用 query `category`（推荐/最新/热门/附近/搞笑/美女）。
   - name: music
     description: |
-      运营音乐列表。客户端公开读 `GET /v1/music/playlist`（可带 `categoryId`）、`GET /v1/music/categories`、`GET /v1/music/settings`（无需登录，V3 envelope）。
+      运营音乐列表。客户端公开读（无需登录，V3 envelope）：
+      `GET /v1/music/playlist`（可带 `categoryId` / `requireMember`）、
+      `GET /v1/music/playlist/grouped`（分类分区嵌套曲目，对齐欢休 zone 列表）、
+      `GET /v1/music/tracks/{id}`（单曲详情）、
+      `GET /v1/music/categories`、`GET /v1/music/settings`。
       playlist 返回曲目、`categories` 分类树与 `memberPreviewSeconds`；曲目含 `backgroundUrl`、`requireMember`、`categoryIds`。
   - name: admin-music
     description: |
@@ -821,9 +828,21 @@ paths:
       description: |
         返回 headline/subheadline 与 week/month/quarter/year 套餐卡片（含 IAP product_id）。
         公开接口；无库数据时回退默认四档。
+        支持按 **包名 / applicationId** 筛选：`packageName`（或 `package_name`）Query，或 Header `X-Wyrs-Package`。
+        有该包精确配置则返回之；否则回退 `package_name` 为空的默认档。
       operationId: subscriptionPlans
       parameters:
         - $ref: "#/components/parameters/X-Language"
+        - name: packageName
+          in: query
+          required: false
+          schema: { type: string }
+          description: applicationId / Bundle ID / 包名；也可用 package_name 或 Header X-Wyrs-Package
+        - name: X-Wyrs-Package
+          in: header
+          required: false
+          schema: { type: string }
+          description: 与 packageName 等价
       responses:
         "200":
           description: data.plans
@@ -1837,21 +1856,54 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/Envelope"
-  /v1/square/posts:
+  /v1/{square_channel}/categories:
     get:
       tags: [square]
-      summary: 全站广场 Feed
+      summary: 广场分类 Tab
       description: |
-        `cursor` 为上一页最后一条 `post_id`，0 表示最新。仅 `visibility` 公开与不给谁看、且审核通过的帖；
-        读时按拉黑、黑名单过滤。评论随帖详情返回，无单独评论列表接口。
+        返回筛选分类：`recommend`/`latest`/`hot`/`nearby`（feed 模式）与 `funny`/`beauty`（内容标签）。
+        各广场实例共用同一套分类枚举；数据按 `square_channel` 隔离。
+      operationId: listSquareCategories
+      parameters:
+        - $ref: "#/components/parameters/SquareChannel"
+      responses:
+        "200":
+          description: 统一 envelope；data.items[].value / kind(feed|tag)
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Envelope"
+  /v1/{square_channel}/posts:
+    get:
+      tags: [square]
+      summary: 广场 Feed
+      description: |
+        `square_channel`：`square`（原路径兼容）/ `squarenovel` / `squaresteps` / `squarehealth`。
+        `category`：推荐/最新/热门/附近为排序模式；搞笑/美女按帖标签筛选。
+        `nearby` 可传 `lat`/`lng`（曼哈顿距离 stub）；未传则仅返回带 POI 的帖并按 id 倒序。
+        `cursor` 为上一页最后一条 `post_id`，0 表示最新。
       operationId: listSquareFeed
       parameters:
+        - $ref: "#/components/parameters/SquareChannel"
+        - in: query
+          name: category
+          schema:
+            $ref: "#/components/schemas/SquareCategory"
+          description: 缺省 recommend
         - in: query
           name: cursor
           schema: { type: integer, format: int64, default: 0 }
         - in: query
           name: limit
           schema: { type: integer, default: 20, maximum: 50 }
+        - in: query
+          name: lat
+          schema: { type: number, format: double }
+          description: 附近排序纬度（category=nearby）
+        - in: query
+          name: lng
+          schema: { type: number, format: double }
+          description: 附近排序经度（category=nearby）
       responses:
         "200":
           description: 统一 envelope
@@ -1865,13 +1917,16 @@ paths:
       description: |
         内容与朋友圈相同。媒体先 `POST /v1/files`（`square_image` / `square_video`）再填 key。
         `visibility`：0 全站公开 1 仅自己 2 白名单 3 黑名单。2/3 需 `audience_uids`（双向好友，最多 200）。
+        可选 `category` 内容标签：`funny` / `beauty`（不可传 feed 模式值）。
       operationId: publishSquarePost
+      parameters:
+        - $ref: "#/components/parameters/SquareChannel"
       requestBody:
         required: true
         content:
           application/json:
             schema:
-              $ref: "#/components/schemas/PublishMomentRequest"
+              $ref: "#/components/schemas/PublishSquareRequest"
       responses:
         "200":
           description: 统一 envelope
@@ -1879,12 +1934,13 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/Envelope"
-  /v1/square/posts/{id}:
+  /v1/{square_channel}/posts/{id}:
     get:
       tags: [square]
       summary: 单条广场帖
       operationId: getSquarePost
       parameters:
+        - $ref: "#/components/parameters/SquareChannel"
         - $ref: "#/components/parameters/SquarePostID"
       responses:
         "200":
@@ -1898,6 +1954,7 @@ paths:
       summary: 删除自己的广场帖
       operationId: deleteSquarePost
       parameters:
+        - $ref: "#/components/parameters/SquareChannel"
         - $ref: "#/components/parameters/SquarePostID"
       responses:
         "200":
@@ -1906,12 +1963,13 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/Envelope"
-  /v1/square/posts/{id}/like:
+  /v1/{square_channel}/posts/{id}/like:
     put:
       tags: [square]
       summary: 点赞
       operationId: likeSquarePost
       parameters:
+        - $ref: "#/components/parameters/SquareChannel"
         - $ref: "#/components/parameters/SquarePostID"
       responses:
         "200":
@@ -1925,6 +1983,7 @@ paths:
       summary: 取消赞
       operationId: unlikeSquarePost
       parameters:
+        - $ref: "#/components/parameters/SquareChannel"
         - $ref: "#/components/parameters/SquarePostID"
       responses:
         "200":
@@ -1933,12 +1992,13 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/Envelope"
-  /v1/square/posts/{id}/comments:
+  /v1/{square_channel}/posts/{id}/comments:
     post:
       tags: [square]
       summary: 评论或回复
       operationId: commentSquarePost
       parameters:
+        - $ref: "#/components/parameters/SquareChannel"
         - $ref: "#/components/parameters/SquarePostID"
       requestBody:
         required: true
@@ -1953,12 +2013,13 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/Envelope"
-  /v1/square/posts/{id}/comments/{cid}:
+  /v1/{square_channel}/posts/{id}/comments/{cid}:
     delete:
       tags: [square]
       summary: 删除评论
       operationId: deleteSquareComment
       parameters:
+        - $ref: "#/components/parameters/SquareChannel"
         - $ref: "#/components/parameters/SquarePostID"
         - name: cid
           in: path
@@ -1971,13 +2032,14 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/Envelope"
-  /v1/square/users/{uid}/posts:
+  /v1/{square_channel}/users/{uid}/posts:
     get:
       tags: [square]
       summary: 某用户广场帖
-      description: 按当前浏览者与帖可见性、拉黑过滤；看自己可见私密与白名单帖。
+      description: 按当前浏览者与帖可见性、拉黑过滤；看自己可见私密与白名单帖。仅返回该 channel 下的帖。
       operationId: listSquareUserPosts
       parameters:
+        - $ref: "#/components/parameters/SquareChannel"
         - $ref: "#/components/parameters/FriendUID"
         - in: query
           name: cursor
@@ -1992,12 +2054,13 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/Envelope"
-  /v1/square/notices:
+  /v1/{square_channel}/notices:
     get:
       tags: [square]
       summary: 赞评通知列表
       operationId: listSquareNotices
       parameters:
+        - $ref: "#/components/parameters/SquareChannel"
         - in: query
           name: cursor
           schema: { type: integer, format: int64, default: 0 }
@@ -2011,11 +2074,13 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/Envelope"
-  /v1/square/notices/unread:
+  /v1/{square_channel}/notices/unread:
     get:
       tags: [square]
       summary: 广场互动未读角标
       operationId: squareNoticeUnread
+      parameters:
+        - $ref: "#/components/parameters/SquareChannel"
       responses:
         "200":
           description: 统一 envelope
@@ -2023,11 +2088,13 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/Envelope"
-  /v1/square/notices/read:
+  /v1/{square_channel}/notices/read:
     post:
       tags: [square]
       summary: 通知标已读
       operationId: readSquareNotices
+      parameters:
+        - $ref: "#/components/parameters/SquareChannel"
       requestBody:
         content:
           application/json:
@@ -2050,6 +2117,7 @@ paths:
         封面/背景图/音频为 sparkr 公网 URL（`https://sparkr.wyrs365.com/spark/perm/music/...`）。
         客户端应按 `requireMember` 与 `memberPreviewSeconds` 控制试听；`backgroundUrl` 可空。
         传 `categoryId` 时仅返回归属该分类或其子分类的曲目（多对多）。
+        传 `requireMember=true|false` 可仅返回会员曲或免费曲（对齐欢休 VIP 分区筛选）。
       operationId: getMusicPlaylist
       security: []
       parameters:
@@ -2058,6 +2126,11 @@ paths:
           required: false
           schema: { type: integer, format: int64, minimum: 0 }
           description: 按分类筛选；0 或不传=全部上架曲目
+        - name: requireMember
+          in: query
+          required: false
+          schema: { type: boolean }
+          description: true=仅会员曲；false=仅免费曲；不传=全部
       responses:
         "200":
           description: 统一 envelope，`data` 为 MusicPlaylist
@@ -2070,6 +2143,61 @@ paths:
                     properties:
                       data:
                         $ref: "#/components/schemas/MusicPlaylist"
+  /v1/music/playlist/grouped:
+    get:
+      tags: [music]
+      summary: 分区嵌套音乐列表（公开）
+      description: |
+        按叶子分类分组返回曲目，便于首页「分区 + 分区下音乐」一次拉取。
+        对齐欢休 `zoneAndZoneMusicList` 语义（Spark 用 category 作 zone）。
+        `parentId`>0 时：该分类为叶子则只返回自身；有子分类则返回其子叶子。
+        无需登录。
+      operationId: getMusicPlaylistGrouped
+      security: []
+      parameters:
+        - name: parentId
+          in: query
+          required: false
+          schema: { type: integer, format: int64, minimum: 0 }
+          description: 父分类 id；0 或不传=全部叶子分类
+      responses:
+        "200":
+          description: 统一 envelope，`data` 为 MusicGroupedPlaylist
+          content:
+            application/json:
+              schema:
+                allOf:
+                  - $ref: "#/components/schemas/Envelope"
+                  - type: object
+                    properties:
+                      data:
+                        $ref: "#/components/schemas/MusicGroupedPlaylist"
+  /v1/music/tracks/{id}:
+    get:
+      tags: [music]
+      summary: 单曲详情（公开）
+      description: |
+        返回已上架曲目详情（含播放 `audioUrl`、封面/背景）。下架或不存在返回 `40401`。
+        对齐欢休 `/music/v1/detail`；无需登录。
+      operationId: getMusicTrack
+      security: []
+      parameters:
+        - name: id
+          in: path
+          required: true
+          schema: { type: integer, format: int64, minimum: 1 }
+      responses:
+        "200":
+          description: 统一 envelope，`data` 为 MusicTrack
+          content:
+            application/json:
+              schema:
+                allOf:
+                  - $ref: "#/components/schemas/Envelope"
+                  - type: object
+                    properties:
+                      data:
+                        $ref: "#/components/schemas/MusicTrack"
   /v1/music/categories:
     get:
       tags: [music]
@@ -3327,6 +3455,23 @@ components:
       type: integer
       enum: [0, 3, 30, 180]
       description: moment_settings.visible_days。0全部 3/30/180 天
+    SquareChannel:
+      type: string
+      enum: [square, squarenovel, squaresteps, squarehealth]
+      description: 广场实例路径段；与 t_square_posts.channel 一致
+    SquareCategory:
+      type: string
+      enum: [recommend, latest, hot, nearby, funny, beauty]
+      description: |
+        Feed 筛选。recommend/latest/hot/nearby 为排序模式；funny/beauty 为帖标签（发帖可写）。
+    PublishSquareRequest:
+      allOf:
+        - $ref: "#/components/schemas/PublishMomentRequest"
+        - type: object
+          properties:
+            category:
+              $ref: "#/components/schemas/SquareCategory"
+              description: 仅 funny/beauty；发帖不可传 feed 模式值
     PublishMomentRequest:
       type: object
       properties:
@@ -3516,6 +3661,25 @@ components:
             $ref: "#/components/schemas/MusicCategory"
           description: 启用中的分类树
         memberPreviewSeconds: { type: integer }
+    MusicPlaylistGroup:
+      type: object
+      description: 一个分区（叶子分类）及其曲目
+      properties:
+        categoryId: { type: integer, format: int64 }
+        name: { type: string }
+        parentId: { type: integer, format: int64, nullable: true }
+        items:
+          type: array
+          items:
+            $ref: "#/components/schemas/MusicTrack"
+    MusicGroupedPlaylist:
+      type: object
+      properties:
+        groups:
+          type: array
+          items:
+            $ref: "#/components/schemas/MusicPlaylistGroup"
+        memberPreviewSeconds: { type: integer }
     SensitiveCategory:
       type: integer
       enum: [1, 2, 3, 4, 5, 6, 7, 8, 9]
@@ -4331,6 +4495,13 @@ components:
         type: integer
         format: int64
       description: 朋友圈 Snowflake post_id。
+    SquareChannel:
+      in: path
+      name: square_channel
+      required: true
+      schema:
+        $ref: "#/components/schemas/SquareChannel"
+      description: 广场实例 square / squarenovel / squaresteps / squarehealth
     SquarePostID:
       in: path
       name: id
diff --git a/internal/transport/http/handler/admin/client.go b/internal/transport/http/handler/admin/client.go
index 1037f03..8bcb84c 100644
--- a/internal/transport/http/handler/admin/client.go
+++ b/internal/transport/http/handler/admin/client.go
@@ -61,7 +61,11 @@ func (h *ClientHandler) ListPlans(c *gin.Context) {
 		return
 	}
 	lang := c.Query("lang")
-	list, err := h.svc.ListPlansAdmin(c.Request.Context(), lang)
+	pkg := strings.TrimSpace(c.Query("packageName"))
+	if pkg == "" {
+		pkg = strings.TrimSpace(c.Query("package_name"))
+	}
+	list, err := h.svc.ListPlansAdmin(c.Request.Context(), lang, pkg)
 	if err != nil {
 		Fail(c, http.StatusInternalServerError, err.Error())
 		return
diff --git a/internal/transport/http/handler/client/handler.go b/internal/transport/http/handler/client/handler.go
index db0dfb9..b5277ae 100644
--- a/internal/transport/http/handler/client/handler.go
+++ b/internal/transport/http/handler/client/handler.go
@@ -1,6 +1,8 @@
 package clienthandler
 
 import (
+	"strings"
+
 	"github.com/gin-gonic/gin"
 
 	clientlogic "spark-server/internal/module/client/logic"
@@ -39,7 +41,14 @@ func (h *Handler) SubmitFeedback(c *gin.Context) {
 }
 
 func (h *Handler) SubscriptionPlans(c *gin.Context) {
-	out, err := h.svc.SubscriptionPlans(c.Request.Context())
+	pkg := strings.TrimSpace(c.Query("packageName"))
+	if pkg == "" {
+		pkg = strings.TrimSpace(c.Query("package_name"))
+	}
+	if pkg == "" {
+		pkg = strings.TrimSpace(c.GetHeader("X-Wyrs-Package"))
+	}
+	out, err := h.svc.SubscriptionPlans(c.Request.Context(), pkg)
 	if err != nil {
 		respond.JSONError(c, err)
 		return
diff --git a/internal/transport/http/handler/music/handler.go b/internal/transport/http/handler/music/handler.go
index 7ae8272..6544141 100644
--- a/internal/transport/http/handler/music/handler.go
+++ b/internal/transport/http/handler/music/handler.go
@@ -20,21 +20,60 @@ func New(svc *musiclogic.Service) *Handler {
 
 // Playlist GET /v1/music/playlist — public curated list + category tree.
 // Query categoryId>0 filters tracks belonging to that category or its descendants.
+// Query requireMember=true|false filters member-only / free tracks.
 func (h *Handler) Playlist(c *gin.Context) {
 	if h == nil || h.svc == nil || !h.svc.Ready() {
 		respond.JSONError(c, errs.ErrAvailable)
 		return
 	}
-	var categoryID int64
-	if raw := c.Query("categoryId"); raw != "" {
+	q, err := parsePlaylistQuery(c)
+	if err != nil {
+		respond.JSONError(c, err)
+		return
+	}
+	out, err := h.svc.Playlist(c.Request.Context(), q)
+	if err != nil {
+		respond.JSONError(c, err)
+		return
+	}
+	respond.JSON(c, out)
+}
+
+// PlaylistGrouped GET /v1/music/playlist/grouped — leaf categories with nested items.
+func (h *Handler) PlaylistGrouped(c *gin.Context) {
+	if h == nil || h.svc == nil || !h.svc.Ready() {
+		respond.JSONError(c, errs.ErrAvailable)
+		return
+	}
+	var parentID int64
+	if raw := c.Query("parentId"); raw != "" {
 		n, err := strconv.ParseInt(raw, 10, 64)
 		if err != nil || n < 0 {
-			respond.JSONError(c, errs.ErrInvalidArgument.WithMsg("categoryId 无效"))
+			respond.JSONError(c, errs.ErrInvalidArgument.WithMsg("parentId 无效"))
 			return
 		}
-		categoryID = n
+		parentID = n
 	}
-	out, err := h.svc.Playlist(c.Request.Context(), categoryID)
+	out, err := h.svc.PlaylistGrouped(c.Request.Context(), parentID)
+	if err != nil {
+		respond.JSONError(c, err)
+		return
+	}
+	respond.JSON(c, out)
+}
+
+// GetTrack GET /v1/music/tracks/:id — single enabled track (public).
+func (h *Handler) GetTrack(c *gin.Context) {
+	if h == nil || h.svc == nil || !h.svc.Ready() {
+		respond.JSONError(c, errs.ErrAvailable)
+		return
+	}
+	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
+	if err != nil || id <= 0 {
+		respond.JSONError(c, errs.ErrInvalidArgument.WithMsg("id 无效"))
+		return
+	}
+	out, err := h.svc.GetPublic(c.Request.Context(), id)
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -69,3 +108,27 @@ func (h *Handler) Settings(c *gin.Context) {
 	}
 	respond.JSON(c, out)
 }
+
+func parsePlaylistQuery(c *gin.Context) (musiclogic.PlaylistQuery, error) {
+	var q musiclogic.PlaylistQuery
+	if raw := c.Query("categoryId"); raw != "" {
+		n, err := strconv.ParseInt(raw, 10, 64)
+		if err != nil || n < 0 {
+			return q, errs.ErrInvalidArgument.WithMsg("categoryId 无效")
+		}
+		q.CategoryID = n
+	}
+	if raw := c.Query("requireMember"); raw != "" {
+		switch raw {
+		case "true", "1":
+			v := true
+			q.RequireMember = &v
+		case "false", "0":
+			v := false
+			q.RequireMember = &v
+		default:
+			return q, errs.ErrInvalidArgument.WithMsg("requireMember 须为 true|false")
+		}
+	}
+	return q, nil
+}
diff --git a/internal/transport/http/handler/square/handler.go b/internal/transport/http/handler/square/handler.go
index 4674115..128ba58 100644
--- a/internal/transport/http/handler/square/handler.go
+++ b/internal/transport/http/handler/square/handler.go
@@ -5,19 +5,24 @@ import (
 
 	"github.com/gin-gonic/gin"
 
+	"spark-server/internal/module/square/entity"
 	squarelogic "spark-server/internal/module/square/logic"
 	"spark-server/internal/pkg/errs"
 	"spark-server/internal/pkg/reqctx"
 	"spark-server/internal/transport/http/respond"
 )
 
-// Handler is the square HTTP controller.
+// Handler is the square HTTP controller for one plaza channel.
 type Handler struct {
-	square *squarelogic.Service
+	square  *squarelogic.Service
+	channel entity.Channel
 }
 
-func New(square *squarelogic.Service) *Handler {
-	return &Handler{square: square}
+func New(square *squarelogic.Service, channel entity.Channel) *Handler {
+	if channel == "" {
+		channel = entity.ChannelSquare
+	}
+	return &Handler{square: square, channel: channel}
 }
 
 func currentUID(c *gin.Context) (int64, bool) {
@@ -43,12 +48,32 @@ func queryInt(c *gin.Context, name string) int64 {
 	return n
 }
 
+func queryFloat(c *gin.Context, name string) float64 {
+	n, _ := strconv.ParseFloat(c.Query(name), 64)
+	return n
+}
+
+func (h *Handler) Categories(c *gin.Context) {
+	respond.JSON(c, gin.H{"items": h.square.Categories()})
+}
+
 func (h *Handler) Feed(c *gin.Context) {
 	uid, ok := currentUID(c)
 	if !ok {
 		return
 	}
-	out, err := h.square.Feed(c.Request.Context(), uid, queryInt(c, "cursor"), int(queryInt(c, "limit")))
+	cat, ok := entity.ParseCategory(c.Query("category"))
+	if !ok {
+		respond.JSONError(c, errs.ErrInvalidArgument)
+		return
+	}
+	if cat == "" {
+		cat = entity.CategoryRecommend
+	}
+	out, err := h.square.Feed(c.Request.Context(), uid, h.channel, squarelogic.FeedQuery{
+		Cursor: queryInt(c, "cursor"), Limit: int(queryInt(c, "limit")),
+		Category: cat, Lat: queryFloat(c, "lat"), Lng: queryFloat(c, "lng"),
+	})
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -66,7 +91,7 @@ func (h *Handler) Publish(c *gin.Context) {
 		respond.JSONError(c, err)
 		return
 	}
-	out, err := h.square.Publish(c.Request.Context(), uid, &in)
+	out, err := h.square.Publish(c.Request.Context(), uid, h.channel, &in)
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -83,7 +108,7 @@ func (h *Handler) UserPosts(c *gin.Context) {
 	if !ok {
 		return
 	}
-	out, err := h.square.UserPosts(c.Request.Context(), uid, owner, queryInt(c, "cursor"), int(queryInt(c, "limit")))
+	out, err := h.square.UserPosts(c.Request.Context(), uid, owner, h.channel, queryInt(c, "cursor"), int(queryInt(c, "limit")))
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -100,7 +125,7 @@ func (h *Handler) Get(c *gin.Context) {
 	if !ok {
 		return
 	}
-	out, err := h.square.Get(c.Request.Context(), uid, id)
+	out, err := h.square.Get(c.Request.Context(), uid, id, h.channel)
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -117,7 +142,7 @@ func (h *Handler) Delete(c *gin.Context) {
 	if !ok {
 		return
 	}
-	if err := h.square.Delete(c.Request.Context(), uid, id); err != nil {
+	if err := h.square.Delete(c.Request.Context(), uid, id, h.channel); err != nil {
 		respond.JSONError(c, err)
 		return
 	}
@@ -133,7 +158,7 @@ func (h *Handler) Like(c *gin.Context) {
 	if !ok {
 		return
 	}
-	out, err := h.square.Like(c.Request.Context(), uid, id)
+	out, err := h.square.Like(c.Request.Context(), uid, id, h.channel)
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -150,7 +175,7 @@ func (h *Handler) Unlike(c *gin.Context) {
 	if !ok {
 		return
 	}
-	out, err := h.square.Unlike(c.Request.Context(), uid, id)
+	out, err := h.square.Unlike(c.Request.Context(), uid, id, h.channel)
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -172,7 +197,7 @@ func (h *Handler) CreateComment(c *gin.Context) {
 		respond.JSONError(c, err)
 		return
 	}
-	out, err := h.square.Comment(c.Request.Context(), uid, id, &in)
+	out, err := h.square.Comment(c.Request.Context(), uid, id, h.channel, &in)
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -193,7 +218,7 @@ func (h *Handler) DeleteComment(c *gin.Context) {
 	if !ok {
 		return
 	}
-	out, err := h.square.DeleteComment(c.Request.Context(), uid, postID, cid)
+	out, err := h.square.DeleteComment(c.Request.Context(), uid, postID, cid, h.channel)
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -206,7 +231,7 @@ func (h *Handler) ListNotices(c *gin.Context) {
 	if !ok {
 		return
 	}
-	out, err := h.square.ListNotices(c.Request.Context(), uid, queryInt(c, "cursor"), int(queryInt(c, "limit")))
+	out, err := h.square.ListNotices(c.Request.Context(), uid, h.channel, queryInt(c, "cursor"), int(queryInt(c, "limit")))
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -219,7 +244,7 @@ func (h *Handler) NoticeUnread(c *gin.Context) {
 	if !ok {
 		return
 	}
-	out, err := h.square.NoticeUnread(c.Request.Context(), uid)
+	out, err := h.square.NoticeUnread(c.Request.Context(), uid, h.channel)
 	if err != nil {
 		respond.JSONError(c, err)
 		return
@@ -237,7 +262,7 @@ func (h *Handler) ReadNotices(c *gin.Context) {
 		respond.JSONError(c, err)
 		return
 	}
-	if err := h.square.ReadNotices(c.Request.Context(), uid, &in); err != nil {
+	if err := h.square.ReadNotices(c.Request.Context(), uid, h.channel, &in); err != nil {
 		respond.JSONError(c, err)
 		return
 	}
diff --git a/internal/transport/http/router.go b/internal/transport/http/router.go
index 66cb06c..a1a1b3a 100644
--- a/internal/transport/http/router.go
+++ b/internal/transport/http/router.go
@@ -5,6 +5,7 @@ import (
 
 	"github.com/gin-gonic/gin"
 
+	"spark-server/internal/module/square/entity"
 	"spark-server/internal/pkg/errs"
 	"spark-server/internal/pkg/i18n"
 	"spark-server/internal/pkg/reply"
@@ -226,8 +227,15 @@ func registerSquareRoutes(v1 *gin.RouterGroup, deps *EngineDeps) {
 	if deps.Square == nil {
 		return
 	}
-	h := squarehandler.New(deps.Square)
-	g := v1.Group("/square")
+	for _, ch := range []string{"square", "squarenovel", "squaresteps", "squarehealth"} {
+		registerSquareChannelRoutes(v1, deps, ch)
+	}
+}
+
+func registerSquareChannelRoutes(v1 *gin.RouterGroup, deps *EngineDeps, channel string) {
+	h := squarehandler.New(deps.Square, entity.Channel(channel))
+	g := v1.Group("/" + channel)
+	g.GET("/categories", h.Categories)
 	g.GET("/posts", h.Feed)
 	g.POST("/posts", h.Publish)
 	g.GET("/posts/:id", h.Get)
@@ -250,6 +258,8 @@ func registerMusicRoutes(v1 *gin.RouterGroup, deps *EngineDeps) {
 	g := v1.Group("/music")
 	// 客户端可读：无需登录（列表为运营配置的公开曲目元数据）
 	g.GET("/playlist", h.Playlist)
+	g.GET("/playlist/grouped", h.PlaylistGrouped)
+	g.GET("/tracks/:id", h.GetTrack)
 	g.GET("/categories", h.Categories)
 	g.GET("/settings", h.Settings)
 }
diff --git a/migrations/0030_subscription_plans_package_name.sql b/migrations/0030_subscription_plans_package_name.sql
new file mode 100644
index 0000000..cc09f62
--- /dev/null
+++ b/migrations/0030_subscription_plans_package_name.sql
@@ -0,0 +1,12 @@
+-- 订阅套餐按 applicationId / 包名区分定价；空字符串 = 默认兜底。
+-- 原 PRIMARY KEY (plan_id, lang) → (plan_id, lang, package_name)
+
+ALTER TABLE t_subscription_plans
+    ADD COLUMN package_name VARCHAR(256) NOT NULL DEFAULT '' COMMENT 'applicationId/包名，空=默认兜底' AFTER lang;
+
+ALTER TABLE t_subscription_plans
+    DROP PRIMARY KEY,
+    ADD PRIMARY KEY (plan_id, lang, package_name);
+
+ALTER TABLE t_subscription_plans
+    ADD KEY idx_sub_plans_pkg (package_name, enabled, sort_order);
diff --git a/migrations/0031_square_channel_category.sql b/migrations/0031_square_channel_category.sql
new file mode 100644
index 0000000..4542ee2
--- /dev/null
+++ b/migrations/0031_square_channel_category.sql
@@ -0,0 +1,24 @@
+-- 多广场实例（channel）+ 分类筛选（category）。旧帖默认 channel=square、category 空。
+
+ALTER TABLE t_square_posts
+    ADD COLUMN channel VARCHAR(32) NOT NULL DEFAULT 'square' COMMENT '广场实例：square/squarenovel/squaresteps/squarehealth' AFTER user_id,
+    ADD COLUMN category VARCHAR(32) NOT NULL DEFAULT '' COMMENT '内容标签：funny/beauty 等；空为未分类' AFTER channel;
+
+ALTER TABLE t_square_posts
+    ADD KEY idx_channel_public_feed (channel, audit_status, visibility, id),
+    ADD KEY idx_channel_hot (channel, audit_status, visibility, like_count, id),
+    ADD KEY idx_channel_category (channel, category, id),
+    ADD KEY idx_channel_user (channel, user_id, id);
+
+ALTER TABLE t_square_notices
+    ADD COLUMN channel VARCHAR(32) NOT NULL DEFAULT 'square' COMMENT '广场实例，与帖一致' AFTER to_user_id;
+
+ALTER TABLE t_square_notices
+    ADD KEY idx_channel_to_user (channel, to_user_id, id);
+
+ALTER TABLE t_square_notice_state
+    ADD COLUMN channel VARCHAR(32) NOT NULL DEFAULT 'square' COMMENT '广场实例' AFTER user_id;
+
+ALTER TABLE t_square_notice_state
+    DROP PRIMARY KEY,
+    ADD PRIMARY KEY (user_id, channel);