diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 0000000..65e6059
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,77 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+**青叶 (QingYe)** — a social chat application with teal-green theme (#009688 primary). Monorepo with `frontend/` (Vue 3) and `backend/` (Python FastAPI), all orchestrated via Docker Compose.
+
+## Development Commands
+
+All services run in Docker. No host dependencies needed.
+
+```bash
+docker compose up --build       # Start all 4 services
+docker compose up -d            # Start detached
+docker compose down             # Stop
+docker compose logs -f backend  # View logs
+docker compose restart backend  # Restart a service
+```
+
+**Backend** runs on `localhost:8000`, **Frontend** on `localhost:5173`. Both have hot-reload via volume mounts. Database changes requiring new columns need manual `ALTER TABLE` or `docker compose restart backend` (which triggers `Base.metadata.create_all`).
+
+## Architecture
+
+### Backend (FastAPI + SQLAlchemy 2.0 async)
+
+**Pattern**: Router → Service → Model, with Pydantic v2 schemas for request/response.
+
+- `backend/app/main.py` — App entry, lifespan (creates DB tables, seeds config), router registration at `/api/v1/{module}`
+- `backend/app/config.py` — Pydantic Settings from env vars
+- `backend/app/database.py` — Async engine + session factory + declarative Base
+- `backend/app/dependencies.py` — `get_db()`, `get_current_user()`, `get_admin_user()`
+- `backend/app/utils/security.py` — JWT (HS256, 30min access / 7day refresh), bcrypt hashing
+
+**API routes**: auth, users, conversations, messages, friends, admin, uploads, **moments** (friend circle)
+
+**Models** (7 + 3 new): User, Conversation, ConversationMember, Message, Friend, FriendRequest, SystemConfig, **Moment, MomentLike, MomentComment**
+
+**Key convention**: All IDs are `str(uuid.uuid4())`, not auto-increment. Services return dicts, not ORM objects. Timestamps use `datetime.utcnow()` (NOT timezone-aware — PostgreSQL columns are `TIMESTAMP WITHOUT TIME ZONE`).
+
+### Frontend (Vue 3 + Vite + Naive UI)
+
+**Pattern**: Composition API with `<script setup>`, Pinia stores, Axios API modules.
+
+- `frontend/src/main.ts` — App entry, globally registers Naive UI components (MUST use `N`-prefixed names: `NButton` not `Button`)
+- `frontend/src/layouts/UnifiedLayout.vue` — Main authenticated layout: 64px icon sidebar + 300px secondary panel + main content
+- `frontend/src/router/index.ts` — All auth routes under `UnifiedLayout`, uses named `secondary` + `default` router-views
+- `frontend/src/api/client.ts` — Axios with JWT interceptors and auto-refresh on 401
+- `frontend/src/composables/useWebSocket.ts` — WebSocket client with exponential backoff reconnect
+
+**CRITICAL**: Naive UI components must be registered with `N`-prefixed names (e.g., `app.component('NButton', NButton)`) because Vue resolves `<n-button>` to `NButton`. The `component.name` property returns `"Button"` (no prefix) — do NOT use `component.name` for registration.
+
+### Database
+
+PostgreSQL 16 with tables auto-created on startup. No Alembic migrations set up yet. Adding columns to existing tables requires:
+1. Manual SQL: `docker compose exec postgres psql -U qingye -d qingye -c "ALTER TABLE ..."`
+2. Then the model update will work
+
+## Key Files
+
+| File | Purpose |
+|------|---------|
+| `docker-compose.yml` | 4 services: postgres, redis, backend, frontend |
+| `frontend/src/layouts/UnifiedLayout.vue` | Main layout with fixed left icon sidebar |
+| `frontend/src/views/chat/ConversationListPanel.vue` | Reusable conversation list with 3 display modes |
+| `frontend/src/views/chat/GroupInfoPanel.vue` | Group management (members, roles) |
+| `frontend/src/views/chat/CreateGroupModal.vue` | Create group with friend selection |
+| `frontend/src/views/moments/MomentsFeedView.vue` | Friend circle / moments feed |
+| `frontend/src/views/moments/MomentCard.vue` | Single moment card with like/comment |
+| `frontend/src/views/settings/` | Settings pages: profile, account (password+email), notifications, about |
+| `backend/app/services/moment_service.py` | Moments business logic (feed, like, comment, visibility) |
+| `backend/app/services/conversation_service.py` | Chat + group management (create, update, add/remove members) |
+| `backend/app/services/friend_service.py` | Friend system (request, direct-add, remark) |
+
+## Environment Variables
+
+Defined in `.env.example`: `DATABASE_URL`, `REDIS_URL`, `JWT_SECRET_KEY`, `JWT_REFRESH_SECRET_KEY`, `CORS_ORIGINS`, `ADMIN_PASSWORD`, `VITE_API_BASE_URL`, `VITE_WS_BASE_URL`.
diff --git a/backend/app/main.py b/backend/app/main.py
index afeb3f8..ab6b9aa 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -64,7 +64,7 @@ app.add_middleware(
 app.mount("/uploads", StaticFiles(directory=settings.UPLOAD_DIR), name="uploads")
 
 # 注册路由
-from app.routers import auth, users, conversations, messages, friends, admin, uploads
+from app.routers import auth, users, conversations, messages, friends, admin, uploads, moments
 
 app.include_router(auth.router, prefix="/api/v1/auth", tags=["认证"])
 app.include_router(users.router, prefix="/api/v1/users", tags=["用户"])
@@ -73,6 +73,7 @@ app.include_router(messages.router, prefix="/api/v1/conversations", tags=["消
 app.include_router(friends.router, prefix="/api/v1/friends", tags=["好友"])
 app.include_router(admin.router, prefix="/api/v1/admin", tags=["管理"])
 app.include_router(uploads.router, prefix="/api/v1/uploads", tags=["上传"])
+app.include_router(moments.router, prefix="/api/v1/moments", tags=["朋友圈"])
 
 # WebSocket
 from app.websocket.router import websocket_router
diff --git a/backend/app/models/__init__.py b/backend/app/models/__init__.py
index 26cc4fd..8c20269 100644
--- a/backend/app/models/__init__.py
+++ b/backend/app/models/__init__.py
@@ -7,6 +7,7 @@ from app.models.message import Message
 from app.models.friend import Friend
 from app.models.friend_request import FriendRequest
 from app.models.system_config import SystemConfig
+from app.models.moment import Moment, MomentLike, MomentComment
 
 __all__ = [
     "User",
@@ -16,4 +17,7 @@ __all__ = [
     "Friend",
     "FriendRequest",
     "SystemConfig",
+    "Moment",
+    "MomentLike",
+    "MomentComment",
 ]
diff --git a/backend/app/models/moment.py b/backend/app/models/moment.py
new file mode 100644
index 0000000..3a51804
--- /dev/null
+++ b/backend/app/models/moment.py
@@ -0,0 +1,61 @@
+"""朋友圈动态模型"""
+
+from datetime import datetime
+
+from sqlalchemy import String, Text, DateTime, ForeignKey, UniqueConstraint
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+class Moment(Base):
+    __tablename__ = "moments"
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True)
+    user_id: Mapped[str] = mapped_column(String(36), ForeignKey("users.id", ondelete="CASCADE"))
+    content: Mapped[str] = mapped_column(Text, nullable=False)
+    images: Mapped[str | None] = mapped_column(Text, nullable=True)  # JSON array of URLs
+    visibility: Mapped[str] = mapped_column(String(20), default="friends")  # public/friends/private
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=lambda: datetime.utcnow())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime,
+        default=lambda: datetime.utcnow(),
+        onupdate=lambda: datetime.utcnow(),
+    )
+
+    # 关系
+    user = relationship("User", foreign_keys=[user_id])
+    likes = relationship("MomentLike", back_populates="moment", cascade="all, delete-orphan")
+    comments = relationship("MomentComment", back_populates="moment", cascade="all, delete-orphan")
+
+
+class MomentLike(Base):
+    __tablename__ = "moment_likes"
+    __table_args__ = (
+        UniqueConstraint("moment_id", "user_id", name="uq_moment_like"),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True)
+    moment_id: Mapped[str] = mapped_column(String(36), ForeignKey("moments.id", ondelete="CASCADE"))
+    user_id: Mapped[str] = mapped_column(String(36), ForeignKey("users.id", ondelete="CASCADE"))
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=lambda: datetime.utcnow())
+
+    moment = relationship("Moment", back_populates="likes")
+    user = relationship("User", foreign_keys=[user_id])
+
+
+class MomentComment(Base):
+    __tablename__ = "moment_comments"
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True)
+    moment_id: Mapped[str] = mapped_column(String(36), ForeignKey("moments.id", ondelete="CASCADE"))
+    user_id: Mapped[str] = mapped_column(String(36), ForeignKey("users.id", ondelete="CASCADE"))
+    content: Mapped[str] = mapped_column(String(500), nullable=False)
+    reply_to_id: Mapped[str | None] = mapped_column(
+        String(36), ForeignKey("moment_comments.id", ondelete="SET NULL"), nullable=True
+    )
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=lambda: datetime.utcnow())
+
+    moment = relationship("Moment", back_populates="comments")
+    user = relationship("User", foreign_keys=[user_id])
+    reply_to = relationship("MomentComment", remote_side=[id])
diff --git a/backend/app/models/user.py b/backend/app/models/user.py
index 23f2fde..d8c5fa5 100644
--- a/backend/app/models/user.py
+++ b/backend/app/models/user.py
@@ -13,6 +13,7 @@ class User(Base):
 
     id: Mapped[str] = mapped_column(String(36), primary_key=True)
     username: Mapped[str] = mapped_column(String(50), unique=True, nullable=False, index=True)
+    nickname: Mapped[str | None] = mapped_column(String(50), nullable=True)
     email: Mapped[str] = mapped_column(String(255), unique=True, nullable=False, index=True)
     password_hash: Mapped[str] = mapped_column(String(255), nullable=False)
     avatar_url: Mapped[str | None] = mapped_column(String(500), nullable=True)
diff --git a/backend/app/routers/conversations.py b/backend/app/routers/conversations.py
index 53693ff..7f22be3 100644
--- a/backend/app/routers/conversations.py
+++ b/backend/app/routers/conversations.py
@@ -5,7 +5,10 @@ from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.dependencies import get_db, get_current_user
 from app.models.user import User
-from app.schemas.conversation import ConversationCreate, ConversationRead, ConversationDetail, GroupCreate
+from app.schemas.conversation import (
+    ConversationCreate, ConversationRead, ConversationDetail,
+    GroupCreate, GroupUpdate, MemberAdd, RoleUpdate,
+)
 from app.services.conversation_service import ConversationService
 
 router = APIRouter()
@@ -65,3 +68,83 @@ async def get_conversation(
     if not detail:
         raise HTTPException(status_code=404, detail="会话不存在或无权访问")
     return detail
+
+
+@router.put("/{conversation_id}")
+async def update_group(
+    conversation_id: str,
+    req: GroupUpdate,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """更新群聊信息（群主/管理员）"""
+    service = ConversationService(db)
+    try:
+        await service.update_group(conversation_id, user.id, **req.model_dump(exclude_none=True))
+        return {"success": True, "message": "群信息已更新"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.post("/{conversation_id}/members")
+async def add_members(
+    conversation_id: str,
+    req: MemberAdd,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """添加群成员（群主/管理员）"""
+    service = ConversationService(db)
+    try:
+        await service.add_members(conversation_id, user.id, req.user_ids)
+        return {"success": True, "message": "成员已添加"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.delete("/{conversation_id}/members/{target_user_id}")
+async def remove_member(
+    conversation_id: str,
+    target_user_id: str,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """移除群成员（群主/管理员）"""
+    service = ConversationService(db)
+    try:
+        await service.remove_member(conversation_id, user.id, target_user_id)
+        return {"success": True, "message": "成员已移除"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.post("/{conversation_id}/leave")
+async def leave_group(
+    conversation_id: str,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """退出群聊"""
+    service = ConversationService(db)
+    try:
+        await service.leave_group(conversation_id, user.id)
+        return {"success": True, "message": "已退出群聊"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.put("/{conversation_id}/members/{target_user_id}/role")
+async def update_member_role(
+    conversation_id: str,
+    target_user_id: str,
+    req: RoleUpdate,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """修改群成员角色（群主）"""
+    service = ConversationService(db)
+    try:
+        await service.update_member_role(conversation_id, user.id, target_user_id, req.role)
+        return {"success": True, "message": "角色已更新"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
diff --git a/backend/app/routers/friends.py b/backend/app/routers/friends.py
index f2eface..160faa0 100644
--- a/backend/app/routers/friends.py
+++ b/backend/app/routers/friends.py
@@ -5,7 +5,7 @@ from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.dependencies import get_db, get_current_user
 from app.models.user import User
-from app.schemas.friend import FriendRequestCreate, FriendRead, FriendRequestRead
+from app.schemas.friend import FriendRequestCreate, FriendRead, FriendRequestRead, RemarkUpdate
 from app.services.friend_service import FriendService
 
 router = APIRouter()
@@ -46,6 +46,37 @@ async def send_friend_request(
         raise HTTPException(status_code=400, detail=str(e))
 
 
+@router.post("/add-direct")
+async def add_friend_direct(
+    req: FriendRequestCreate,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """直接添加好友（跳过验证）"""
+    service = FriendService(db)
+    try:
+        await service.add_direct(user.id, req.to_user_id)
+        return {"success": True, "message": "已添加好友"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.put("/{friend_user_id}/remark")
+async def update_friend_remark(
+    friend_user_id: str,
+    req: RemarkUpdate,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """修改好友备注"""
+    service = FriendService(db)
+    try:
+        await service.update_remark(user.id, friend_user_id, req.remark)
+        return {"success": True, "message": "备注已更新"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
 @router.put("/request/{request_id}/accept")
 async def accept_friend_request(
     request_id: str,
diff --git a/backend/app/routers/moments.py b/backend/app/routers/moments.py
new file mode 100644
index 0000000..663e6c6
--- /dev/null
+++ b/backend/app/routers/moments.py
@@ -0,0 +1,140 @@
+"""朋友圈路由"""
+
+from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.dependencies import get_db, get_current_user
+from app.models.user import User
+from app.schemas.moment import MomentCreate, MomentCommentCreate
+from app.services.moment_service import MomentService
+
+router = APIRouter()
+
+
+@router.get("/")
+async def get_feed(
+    cursor: str | None = Query(None),
+    limit: int = Query(20, ge=1, le=50),
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """获取朋友圈 feed"""
+    service = MomentService(db)
+    return await service.get_feed(user.id, cursor, limit)
+
+
+@router.post("/")
+async def create_moment(
+    req: MomentCreate,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """发布动态"""
+    service = MomentService(db)
+    try:
+        moment = await service.create_moment(user.id, req.content, req.images, req.visibility)
+        detail = await service.get_feed(user.id, limit=1)
+        return detail[0] if detail else {"success": True}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.get("/user/{target_user_id}")
+async def get_user_moments(
+    target_user_id: str,
+    cursor: str | None = Query(None),
+    limit: int = Query(20, ge=1, le=50),
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """获取指定用户的动态"""
+    service = MomentService(db)
+    return await service.get_user_moments(target_user_id, user.id, cursor, limit)
+
+
+@router.get("/{moment_id}")
+async def get_moment(
+    moment_id: str,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """获取单条动态详情"""
+    service = MomentService(db)
+    feed = await service.get_feed(user.id, limit=100)
+    moment = next((m for m in feed if m["id"] == moment_id), None)
+    if not moment:
+        raise HTTPException(status_code=404, detail="动态不存在")
+    return moment
+
+
+@router.delete("/{moment_id}")
+async def delete_moment(
+    moment_id: str,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """删除动态"""
+    service = MomentService(db)
+    try:
+        await service.delete_moment(moment_id, user.id)
+        return {"success": True, "message": "动态已删除"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.post("/{moment_id}/like")
+async def toggle_like(
+    moment_id: str,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """点赞/取消点赞"""
+    service = MomentService(db)
+    try:
+        is_liked = await service.toggle_like(moment_id, user.id)
+        return {"success": True, "is_liked": is_liked}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.get("/{moment_id}/comments")
+async def get_comments(
+    moment_id: str,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """获取评论列表"""
+    service = MomentService(db)
+    return await service.get_comments(moment_id)
+
+
+@router.post("/{moment_id}/comments")
+async def add_comment(
+    moment_id: str,
+    req: MomentCommentCreate,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """添加评论"""
+    service = MomentService(db)
+    try:
+        comment = await service.add_comment(moment_id, user.id, req.content, req.reply_to_id)
+        return comment
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.delete("/{moment_id}/comments/{comment_id}")
+async def delete_comment(
+    moment_id: str,
+    comment_id: str,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """删除评论"""
+    service = MomentService(db)
+    try:
+        await service.delete_comment(comment_id, user.id)
+        return {"success": True, "message": "评论已删除"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
diff --git a/backend/app/routers/users.py b/backend/app/routers/users.py
index 7cb66c9..3a08d57 100644
--- a/backend/app/routers/users.py
+++ b/backend/app/routers/users.py
@@ -5,7 +5,10 @@ from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.dependencies import get_db, get_current_user
 from app.models.user import User
-from app.schemas.user import UserRead, UserProfile, UserUpdate, UserSearchResult
+from app.schemas.user import (
+    UserRead, UserProfile, UserUpdate, UserSearchResult,
+    PasswordChange, EmailChange,
+)
 from app.services.user_service import UserService
 
 router = APIRouter()
@@ -29,6 +32,36 @@ async def update_me(
     return updated
 
 
+@router.put("/me/password")
+async def change_password(
+    req: PasswordChange,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """修改密码"""
+    service = UserService(db)
+    try:
+        await service.change_password(user.id, req.old_password, req.new_password)
+        return {"success": True, "message": "密码修改成功"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.put("/me/email")
+async def change_email(
+    req: EmailChange,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """更换绑定邮箱"""
+    service = UserService(db)
+    try:
+        await service.change_email(user.id, req.email, req.password)
+        return {"success": True, "message": "邮箱已更新"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
 @router.get("/search", response_model=list[UserSearchResult])
 async def search_users(
     q: str = Query(..., min_length=1),
diff --git a/backend/app/schemas/auth.py b/backend/app/schemas/auth.py
index 46ffba6..a72767f 100644
--- a/backend/app/schemas/auth.py
+++ b/backend/app/schemas/auth.py
@@ -28,6 +28,7 @@ class RefreshRequest(BaseModel):
 class UserBrief(BaseModel):
     id: str
     username: str
+    nickname: str | None = None
     avatar_url: str | None = None
     is_admin: bool = False
 
diff --git a/backend/app/schemas/conversation.py b/backend/app/schemas/conversation.py
index 71078a8..bdfac1a 100644
--- a/backend/app/schemas/conversation.py
+++ b/backend/app/schemas/conversation.py
@@ -51,3 +51,17 @@ class GroupCreate(BaseModel):
     name: str = Field(..., min_length=1, max_length=100)
     description: str | None = Field(None, max_length=500)
     member_ids: list[str] = Field(..., min_length=1)
+
+
+class GroupUpdate(BaseModel):
+    name: str | None = Field(None, max_length=100)
+    description: str | None = Field(None, max_length=500)
+    avatar_url: str | None = None
+
+
+class MemberAdd(BaseModel):
+    user_ids: list[str] = Field(..., min_length=1)
+
+
+class RoleUpdate(BaseModel):
+    role: str = Field(..., pattern="^(admin|member)$")
diff --git a/backend/app/schemas/friend.py b/backend/app/schemas/friend.py
index 0baf2e0..889f963 100644
--- a/backend/app/schemas/friend.py
+++ b/backend/app/schemas/friend.py
@@ -34,3 +34,7 @@ class FriendRead(BaseModel):
     status: str = "offline"
 
     model_config = {"from_attributes": True}
+
+
+class RemarkUpdate(BaseModel):
+    remark: str | None = None
diff --git a/backend/app/schemas/moment.py b/backend/app/schemas/moment.py
new file mode 100644
index 0000000..cb96027
--- /dev/null
+++ b/backend/app/schemas/moment.py
@@ -0,0 +1,48 @@
+"""朋友圈相关 Schema"""
+
+from datetime import datetime
+
+from pydantic import BaseModel, Field
+
+
+class MomentCreate(BaseModel):
+    content: str = Field(..., min_length=1, max_length=1000)
+    images: list[str] | None = Field(None, max_length=9)
+    visibility: str = Field("friends", pattern="^(public|friends|private)$")
+
+
+class MomentRead(BaseModel):
+    id: str
+    user_id: str
+    username: str
+    nickname: str | None = None
+    avatar_url: str | None = None
+    content: str
+    images: list[str] = []
+    visibility: str
+    like_count: int = 0
+    is_liked: bool = False
+    comment_count: int = 0
+    created_at: datetime
+
+    model_config = {"from_attributes": True}
+
+
+class MomentCommentCreate(BaseModel):
+    content: str = Field(..., min_length=1, max_length=500)
+    reply_to_id: str | None = None
+
+
+class MomentCommentRead(BaseModel):
+    id: str
+    moment_id: str
+    user_id: str
+    username: str
+    nickname: str | None = None
+    avatar_url: str | None = None
+    content: str
+    reply_to_id: str | None = None
+    reply_to_username: str | None = None
+    created_at: datetime
+
+    model_config = {"from_attributes": True}
diff --git a/backend/app/schemas/user.py b/backend/app/schemas/user.py
index 603da7d..bffed84 100644
--- a/backend/app/schemas/user.py
+++ b/backend/app/schemas/user.py
@@ -2,16 +2,18 @@
 
 from datetime import datetime
 
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, EmailStr, Field
 
 
 class UserRead(BaseModel):
     id: str
     username: str
+    nickname: str | None = None
     email: str
     avatar_url: str | None = None
     bio: str | None = None
     status: str = "offline"
+    is_admin: bool = False
     created_at: datetime
 
     model_config = {"from_attributes": True}
@@ -21,6 +23,7 @@ class UserProfile(BaseModel):
     """他人可见的公开信息"""
     id: str
     username: str
+    nickname: str | None = None
     avatar_url: str | None = None
     bio: str | None = None
     status: str = "offline"
@@ -30,6 +33,7 @@ class UserProfile(BaseModel):
 
 class UserUpdate(BaseModel):
     username: str | None = Field(None, min_length=2, max_length=50)
+    nickname: str | None = Field(None, max_length=50)
     bio: str | None = Field(None, max_length=200)
     avatar_url: str | None = None
 
@@ -39,9 +43,15 @@ class PasswordChange(BaseModel):
     new_password: str = Field(..., min_length=6, max_length=100)
 
 
+class EmailChange(BaseModel):
+    email: EmailStr
+    password: str
+
+
 class UserSearchResult(BaseModel):
     id: str
     username: str
+    nickname: str | None = None
     avatar_url: str | None = None
     bio: str | None = None
     status: str = "offline"
diff --git a/backend/app/services/conversation_service.py b/backend/app/services/conversation_service.py
index 0e08d27..ce40d9c 100644
--- a/backend/app/services/conversation_service.py
+++ b/backend/app/services/conversation_service.py
@@ -1,11 +1,10 @@
 """会话服务"""
 
 import uuid
-from datetime import datetime, timezone
+from datetime import datetime
 
-from sqlalchemy import select, and_
+from sqlalchemy import select, func
 from sqlalchemy.ext.asyncio import AsyncSession
-from sqlalchemy.orm import selectinload
 
 from app.models.conversation import Conversation
 from app.models.conversation_member import ConversationMember
@@ -18,7 +17,6 @@ class ConversationService:
 
     async def get_or_create_private(self, user1_id: str, user2_id: str) -> Conversation:
         """获取或创建私聊会话"""
-        # 查找已有的私聊
         result = await self.db.execute(
             select(Conversation).join(ConversationMember)
             .where(
@@ -36,12 +34,10 @@ class ConversationService:
             if member_result.scalars().first():
                 return conv
 
-        # 创建新私聊
         conv = Conversation(id=str(uuid.uuid4()), type="private")
         self.db.add(conv)
         await self.db.flush()
 
-        # 添加两个成员
         self.db.add(ConversationMember(
             id=str(uuid.uuid4()), conversation_id=conv.id, user_id=user1_id, role="member"
         ))
@@ -63,12 +59,10 @@ class ConversationService:
         self.db.add(conv)
         await self.db.flush()
 
-        # 创建者为 owner
         self.db.add(ConversationMember(
             id=str(uuid.uuid4()), conversation_id=conv.id,
             user_id=creator_id, role="owner"
         ))
-        # 其他成员
         for mid in member_ids:
             if mid != creator_id:
                 self.db.add(ConversationMember(
@@ -77,6 +71,86 @@ class ConversationService:
                 ))
         return conv
 
+    async def update_group(self, conv_id: str, user_id: str, **kwargs):
+        """更新群聊信息（仅群主/管理员）"""
+        conv = await self._get_conv_if_admin(conv_id, user_id)
+        for key, value in kwargs.items():
+            if value is not None and hasattr(conv, key):
+                setattr(conv, key, value)
+
+    async def add_members(self, conv_id: str, user_id: str, new_member_ids: list[str]):
+        """添加群成员（仅群主/管理员）"""
+        await self._get_conv_if_admin(conv_id, user_id)
+        for mid in new_member_ids:
+            # 检查是否已在群中
+            existing = await self.db.execute(
+                select(ConversationMember).where(
+                    ConversationMember.conversation_id == conv_id,
+                    ConversationMember.user_id == mid,
+                    ConversationMember.left_at.is_(None),
+                )
+            )
+            if not existing.scalars().first():
+                self.db.add(ConversationMember(
+                    id=str(uuid.uuid4()), conversation_id=conv_id,
+                    user_id=mid, role="member"
+                ))
+
+    async def remove_member(self, conv_id: str, user_id: str, target_user_id: str):
+        """移除群成员（仅群主/管理员，不能移除群主）"""
+        await self._get_conv_if_admin(conv_id, user_id)
+        member = await self._get_member(conv_id, target_user_id)
+        if not member:
+            raise ValueError("该用户不在群中")
+        if member.role == "owner":
+            raise ValueError("不能移除群主")
+        member.left_at = datetime.utcnow()
+
+    async def leave_group(self, conv_id: str, user_id: str):
+        """退出群聊"""
+        member = await self._get_member(conv_id, user_id)
+        if not member:
+            raise ValueError("你不在该群中")
+        if member.role == "owner":
+            raise ValueError("群主不能退出，请先转让群主身份")
+        member.left_at = datetime.utcnow()
+
+    async def update_member_role(self, conv_id: str, user_id: str, target_user_id: str, role: str):
+        """修改成员角色（仅群主）"""
+        member = await self._get_member(conv_id, user_id)
+        if not member or member.role != "owner":
+            raise ValueError("只有群主可以修改角色")
+        target = await self._get_member(conv_id, target_user_id)
+        if not target:
+            raise ValueError("目标用户不在群中")
+        target.role = role
+
+    async def _get_conv_if_admin(self, conv_id: str, user_id: str) -> Conversation:
+        """获取会话并验证管理员权限"""
+        conv_result = await self.db.execute(
+            select(Conversation).where(Conversation.id == conv_id)
+        )
+        conv = conv_result.scalars().first()
+        if not conv:
+            raise ValueError("会话不存在")
+        if conv.type != "group":
+            raise ValueError("仅群聊支持此操作")
+        member = await self._get_member(conv_id, user_id)
+        if not member or member.role not in ("owner", "admin"):
+            raise ValueError("仅群主或管理员可执行此操作")
+        return conv
+
+    async def _get_member(self, conv_id: str, user_id: str) -> ConversationMember | None:
+        """获取成员记录"""
+        result = await self.db.execute(
+            select(ConversationMember).where(
+                ConversationMember.conversation_id == conv_id,
+                ConversationMember.user_id == user_id,
+                ConversationMember.left_at.is_(None),
+            )
+        )
+        return result.scalars().first()
+
     async def get_user_conversations(self, user_id: str) -> list[dict]:
         """获取用户的会话列表"""
         result = await self.db.execute(
@@ -95,17 +169,15 @@ class ConversationService:
             if not conv:
                 continue
 
-            # 获取未读数
             unread = await self._get_unread_count(conv.id, member.last_read_message_id)
 
-            # 获取显示信息
             display_name = conv.name
             display_avatar = conv.avatar_url
 
             if conv.type == "private":
                 other = await self._get_other_member(conv.id, user_id)
                 if other:
-                    display_name = other.username
+                    display_name = other.nickname or other.username
                     display_avatar = other.avatar_url
 
             conversations.append({
@@ -120,7 +192,6 @@ class ConversationService:
                 "created_at": conv.created_at,
             })
 
-        # 按最后消息时间排序
         conversations.sort(key=lambda x: x["last_message_at"] or x["created_at"], reverse=True)
         return conversations
 
@@ -133,7 +204,6 @@ class ConversationService:
         if not conv:
             return None
 
-        # 验证成员身份
         member_result = await self.db.execute(
             select(ConversationMember).where(
                 ConversationMember.conversation_id == conv_id,
@@ -144,7 +214,6 @@ class ConversationService:
         if not member_result.scalars().first():
             return None
 
-        # 获取所有成员
         members_result = await self.db.execute(
             select(ConversationMember).where(
                 ConversationMember.conversation_id == conv_id,
@@ -160,7 +229,7 @@ class ConversationService:
                     "id": m.id,
                     "user_id": user.id,
                     "username": user.username,
-                    "nickname": user.bio,
+                    "nickname": user.nickname,
                     "avatar_url": user.avatar_url,
                     "role": m.role,
                     "joined_at": m.joined_at,
@@ -196,12 +265,11 @@ class ConversationService:
     async def _get_unread_count(self, conv_id: str, last_read_id: str | None) -> int:
         """计算未读消息数"""
         from app.models.message import Message
-        query = select(func := __import__("sqlalchemy").func).count(Message.id).where(
+        query = select(func.count(Message.id)).where(
             Message.conversation_id == conv_id,
             Message.is_deleted == False,
         )
         if last_read_id:
-            # 获取 last_read 消息的时间
             lr = await self.db.execute(select(Message).where(Message.id == last_read_id))
             lr_msg = lr.scalars().first()
             if lr_msg:
diff --git a/backend/app/services/friend_service.py b/backend/app/services/friend_service.py
index ca3f5b9..31c74ac 100644
--- a/backend/app/services/friend_service.py
+++ b/backend/app/services/friend_service.py
@@ -113,7 +113,7 @@ class FriendService:
                     "id": friendship.id,
                     "friend_user_id": user.id,
                     "username": user.username,
-                    "nickname": user.bio,
+                    "nickname": user.nickname,
                     "avatar_url": user.avatar_url,
                     "remark": friendship.remark,
                     "status": user.status,
@@ -160,3 +160,46 @@ class FriendService:
                 (Friend.user_id == friend_id) & (Friend.friend_user_id == user_id)
             )
         )
+
+    async def add_direct(self, from_user_id: str, to_user_id: str):
+        """直接添加好友（跳过验证）"""
+        if from_user_id == to_user_id:
+            raise ValueError("不能添加自己为好友")
+
+        # 检查目标用户是否存在
+        target = await self.db.execute(select(User).where(User.id == to_user_id))
+        if not target.scalars().first():
+            raise ValueError("目标用户不存在")
+
+        # 检查是否已是好友
+        existing = await self.db.execute(
+            select(Friend).where(
+                Friend.user_id == from_user_id,
+                Friend.friend_user_id == to_user_id,
+            )
+        )
+        if existing.scalars().first():
+            raise ValueError("已经是好友了")
+
+        # 创建双向好友关系
+        self.db.add(Friend(
+            id=str(uuid.uuid4()), user_id=from_user_id,
+            friend_user_id=to_user_id,
+        ))
+        self.db.add(Friend(
+            id=str(uuid.uuid4()), user_id=to_user_id,
+            friend_user_id=from_user_id,
+        ))
+
+    async def update_remark(self, user_id: str, friend_user_id: str, remark: str | None):
+        """修改好友备注"""
+        result = await self.db.execute(
+            select(Friend).where(
+                Friend.user_id == user_id,
+                Friend.friend_user_id == friend_user_id,
+            )
+        )
+        friendship = result.scalars().first()
+        if not friendship:
+            raise ValueError("好友关系不存在")
+        friendship.remark = remark
diff --git a/backend/app/services/moment_service.py b/backend/app/services/moment_service.py
new file mode 100644
index 0000000..5dc9cad
--- /dev/null
+++ b/backend/app/services/moment_service.py
@@ -0,0 +1,312 @@
+"""朋友圈服务"""
+
+import json
+import uuid
+from datetime import datetime
+
+from sqlalchemy import select, func, and_
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.moment import Moment, MomentLike, MomentComment
+from app.models.friend import Friend
+from app.models.user import User
+
+
+class MomentService:
+    def __init__(self, db: AsyncSession):
+        self.db = db
+
+    async def create_moment(self, user_id: str, content: str,
+                            images: list[str] | None = None,
+                            visibility: str = "friends") -> Moment:
+        """发布动态"""
+        moment = Moment(
+            id=str(uuid.uuid4()),
+            user_id=user_id,
+            content=content,
+            images=json.dumps(images) if images else None,
+            visibility=visibility,
+        )
+        self.db.add(moment)
+        await self.db.flush()
+        return moment
+
+    async def get_feed(self, user_id: str, cursor: str | None = None,
+                       limit: int = 20) -> list[dict]:
+        """获取朋友圈 feed（自己 + 好友的动态）"""
+        # 获取好友ID列表
+        friend_ids = await self._get_friend_ids(user_id)
+        # 可以看到的人：自己 + 好友
+        visible_user_ids = [user_id] + friend_ids
+
+        query = (
+            select(Moment)
+            .where(
+                Moment.user_id.in_(visible_user_ids),
+                Moment.visibility != "private",  # 私密动态只有自己能看到（下面单独处理）
+            )
+            .order_by(Moment.created_at.desc())
+            .limit(limit)
+        )
+
+        # 也获取自己的私密动态
+        own_private_query = (
+            select(Moment)
+            .where(Moment.user_id == user_id, Moment.visibility == "private")
+            .order_by(Moment.created_at.desc())
+            .limit(limit)
+        )
+
+        if cursor:
+            cursor_result = await self.db.execute(
+                select(Moment.created_at).where(Moment.id == cursor)
+            )
+            cursor_time = cursor_result.scalar()
+            if cursor_time:
+                query = query.where(Moment.created_at < cursor_time)
+                own_private_query = own_private_query.where(Moment.created_at < cursor_time)
+
+        result = await self.db.execute(query)
+        own_private_result = await self.db.execute(own_private_query)
+
+        moments = list(result.scalars().all())
+        moments.extend(own_private_result.scalars().all())
+
+        # 合并并去重、排序
+        seen_ids = set()
+        unique = []
+        for m in moments:
+            if m.id not in seen_ids:
+                seen_ids.add(m.id)
+                unique.append(m)
+        unique.sort(key=lambda x: x.created_at, reverse=True)
+        unique = unique[:limit]
+
+        return [await self._moment_to_dict(m, user_id) for m in unique]
+
+    async def get_user_moments(self, user_id: str, viewer_id: str | None = None,
+                                cursor: str | None = None, limit: int = 20) -> list[dict]:
+        """获取指定用户的动态"""
+        query = (
+            select(Moment)
+            .where(Moment.user_id == user_id)
+            .order_by(Moment.created_at.desc())
+            .limit(limit)
+        )
+        if cursor:
+            cursor_result = await self.db.execute(
+                select(Moment.created_at).where(Moment.id == cursor)
+            )
+            cursor_time = cursor_result.scalar()
+            if cursor_time:
+                query = query.where(Moment.created_at < cursor_time)
+
+        result = await self.db.execute(query)
+        moments = list(result.scalars().all())
+
+        # 过滤可见性
+        filtered = []
+        for m in moments:
+            if m.visibility == "public":
+                filtered.append(m)
+            elif m.visibility == "friends":
+                if viewer_id and (viewer_id == user_id or await self._are_friends(viewer_id, user_id)):
+                    filtered.append(m)
+            elif m.visibility == "private":
+                if viewer_id == user_id:
+                    filtered.append(m)
+
+        return [await self._moment_to_dict(m, viewer_id) for m in filtered]
+
+    async def delete_moment(self, moment_id: str, user_id: str):
+        """删除动态（仅作者）"""
+        result = await self.db.execute(select(Moment).where(Moment.id == moment_id))
+        moment = result.scalars().first()
+        if not moment:
+            raise ValueError("动态不存在")
+        if moment.user_id != user_id:
+            raise ValueError("只能删除自己的动态")
+        await self.db.delete(moment)
+
+    async def toggle_like(self, moment_id: str, user_id: str) -> bool:
+        """点赞/取消点赞，返回是否已点赞"""
+        result = await self.db.execute(
+            select(MomentLike).where(
+                MomentLike.moment_id == moment_id,
+                MomentLike.user_id == user_id,
+            )
+        )
+        existing = result.scalars().first()
+        if existing:
+            await self.db.delete(existing)
+            return False
+        else:
+            self.db.add(MomentLike(
+                id=str(uuid.uuid4()),
+                moment_id=moment_id,
+                user_id=user_id,
+            ))
+            return True
+
+    async def add_comment(self, moment_id: str, user_id: str, content: str,
+                           reply_to_id: str | None = None) -> dict:
+        """添加评论"""
+        # 验证动态存在
+        moment_result = await self.db.execute(select(Moment).where(Moment.id == moment_id))
+        if not moment_result.scalars().first():
+            raise ValueError("动态不存在")
+
+        comment = MomentComment(
+            id=str(uuid.uuid4()),
+            moment_id=moment_id,
+            user_id=user_id,
+            content=content,
+            reply_to_id=reply_to_id,
+        )
+        self.db.add(comment)
+        await self.db.flush()
+
+        # 返回带用户信息的评论
+        user_result = await self.db.execute(select(User).where(User.id == user_id))
+        user = user_result.scalars().first()
+
+        reply_to_username = None
+        if reply_to_id:
+            rt_result = await self.db.execute(select(User).where(User.id == comment.reply_to_id))
+            # reply_to_id 是评论 ID，需要找到评论者的 user
+            rt_comment = await self.db.execute(
+                select(MomentComment).where(MomentComment.id == reply_to_id)
+            )
+            rt_c = rt_comment.scalars().first()
+            if rt_c:
+                rt_user = await self.db.execute(select(User).where(User.id == rt_c.user_id))
+                rt_u = rt_user.scalars().first()
+                reply_to_username = rt_u.username if rt_u else None
+
+        return {
+            "id": comment.id,
+            "moment_id": moment_id,
+            "user_id": user_id,
+            "username": user.username if user else "未知",
+            "nickname": user.nickname if user else None,
+            "avatar_url": user.avatar_url if user else None,
+            "content": content,
+            "reply_to_id": reply_to_id,
+            "reply_to_username": reply_to_username,
+            "created_at": comment.created_at,
+        }
+
+    async def get_comments(self, moment_id: str) -> list[dict]:
+        """获取评论列表"""
+        result = await self.db.execute(
+            select(MomentComment).where(
+                MomentComment.moment_id == moment_id
+            ).order_by(MomentComment.created_at.asc())
+        )
+        comments = []
+        for c in result.scalars().all():
+            user_result = await self.db.execute(select(User).where(User.id == c.user_id))
+            user = user_result.scalars().first()
+
+            reply_to_username = None
+            if c.reply_to_id:
+                rt_comment = await self.db.execute(
+                    select(MomentComment).where(MomentComment.id == c.reply_to_id)
+                )
+                rt_c = rt_comment.scalars().first()
+                if rt_c:
+                    rt_user = await self.db.execute(select(User).where(User.id == rt_c.user_id))
+                    rt_u = rt_user.scalars().first()
+                    reply_to_username = rt_u.username if rt_u else None
+
+            comments.append({
+                "id": c.id,
+                "moment_id": moment_id,
+                "user_id": c.user_id,
+                "username": user.username if user else "未知",
+                "nickname": user.nickname if user else None,
+                "avatar_url": user.avatar_url if user else None,
+                "content": c.content,
+                "reply_to_id": c.reply_to_id,
+                "reply_to_username": reply_to_username,
+                "created_at": c.created_at,
+            })
+        return comments
+
+    async def delete_comment(self, comment_id: str, user_id: str):
+        """删除评论（仅作者）"""
+        result = await self.db.execute(select(MomentComment).where(MomentComment.id == comment_id))
+        comment = result.scalars().first()
+        if not comment:
+            raise ValueError("评论不存在")
+        if comment.user_id != user_id:
+            raise ValueError("只能删除自己的评论")
+        await self.db.delete(comment)
+
+    async def _moment_to_dict(self, moment: Moment, viewer_id: str | None) -> dict:
+        """将 Moment ORM 对象转为前端需要的字典"""
+        user_result = await self.db.execute(select(User).where(User.id == moment.user_id))
+        user = user_result.scalars().first()
+
+        # 点赞数
+        like_count_result = await self.db.execute(
+            select(func.count(MomentLike.id)).where(MomentLike.moment_id == moment.id)
+        )
+        like_count = like_count_result.scalar() or 0
+
+        # 是否已点赞
+        is_liked = False
+        if viewer_id:
+            like_result = await self.db.execute(
+                select(MomentLike).where(
+                    MomentLike.moment_id == moment.id,
+                    MomentLike.user_id == viewer_id,
+                )
+            )
+            is_liked = like_result.scalars().first() is not None
+
+        # 评论数
+        comment_count_result = await self.db.execute(
+            select(func.count(MomentComment.id)).where(MomentComment.moment_id == moment.id)
+        )
+        comment_count = comment_count_result.scalar() or 0
+
+        # 解析图片
+        images = []
+        if moment.images:
+            try:
+                images = json.loads(moment.images)
+            except:
+                pass
+
+        return {
+            "id": moment.id,
+            "user_id": moment.user_id,
+            "username": user.username if user else "未知",
+            "nickname": user.nickname if user else None,
+            "avatar_url": user.avatar_url if user else None,
+            "content": moment.content,
+            "images": images,
+            "visibility": moment.visibility,
+            "like_count": like_count,
+            "is_liked": is_liked,
+            "comment_count": comment_count,
+            "created_at": moment.created_at,
+        }
+
+    async def _get_friend_ids(self, user_id: str) -> list[str]:
+        """获取好友ID列表"""
+        result = await self.db.execute(
+            select(Friend.friend_user_id).where(Friend.user_id == user_id)
+        )
+        return [r[0] for r in result.all()]
+
+    async def _are_friends(self, user1_id: str, user2_id: str) -> bool:
+        """检查两人是否是好友"""
+        result = await self.db.execute(
+            select(Friend).where(
+                Friend.user_id == user1_id,
+                Friend.friend_user_id == user2_id,
+            )
+        )
+        return result.scalars().first() is not None
diff --git a/backend/app/services/user_service.py b/backend/app/services/user_service.py
index b990128..5c7db63 100644
--- a/backend/app/services/user_service.py
+++ b/backend/app/services/user_service.py
@@ -6,6 +6,7 @@ from sqlalchemy import select, or_, func
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.models.user import User
+from app.utils.security import hash_password, verify_password
 
 
 class UserService:
@@ -23,11 +24,12 @@ class UserService:
         return result.scalars().first()
 
     async def search_users(self, query: str, current_user_id: str, limit: int = 20) -> list[User]:
-        """搜索用户"""
+        """搜索用户（支持用户名、昵称、邮箱）"""
         result = await self.db.execute(
             select(User).where(
                 or_(
                     User.username.ilike(f"%{query}%"),
+                    User.nickname.ilike(f"%{query}%"),
                     User.email.ilike(f"%{query}%"),
                 ),
                 User.id != current_user_id,
@@ -49,6 +51,32 @@ class UserService:
         user.updated_at = datetime.utcnow()
         return user
 
+    async def change_password(self, user_id: str, old_password: str, new_password: str):
+        """修改密码"""
+        user = await self.get_by_id(user_id)
+        if not user:
+            raise ValueError("用户不存在")
+        if not verify_password(old_password, user.password_hash):
+            raise ValueError("原密码错误")
+        user.password_hash = hash_password(new_password)
+        user.updated_at = datetime.utcnow()
+
+    async def change_email(self, user_id: str, new_email: str, password: str):
+        """更换绑定邮箱"""
+        user = await self.get_by_id(user_id)
+        if not user:
+            raise ValueError("用户不存在")
+        if not verify_password(password, user.password_hash):
+            raise ValueError("密码错误")
+        # 检查邮箱是否已被使用
+        result = await self.db.execute(
+            select(User).where(User.email == new_email, User.id != user_id)
+        )
+        if result.scalars().first():
+            raise ValueError("该邮箱已被其他账号使用")
+        user.email = new_email
+        user.updated_at = datetime.utcnow()
+
     async def update_status(self, user_id: str, status: str):
         """更新用户在线状态"""
         user = await self.get_by_id(user_id)
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index b6476c7..dcec1c2 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -1,10 +1,12 @@
 <template>
   <n-config-provider :theme-overrides="themeOverrides">
-    <n-message-provider>
-      <n-dialog-provider>
-        <router-view />
-      </n-dialog-provider>
-    </n-message-provider>
+    <n-notification-provider>
+      <n-message-provider>
+        <n-dialog-provider>
+          <router-view />
+        </n-dialog-provider>
+      </n-message-provider>
+    </n-notification-provider>
   </n-config-provider>
 </template>
 
diff --git a/frontend/src/api/chat.ts b/frontend/src/api/chat.ts
index 3805cfa..46e7924 100644
--- a/frontend/src/api/chat.ts
+++ b/frontend/src/api/chat.ts
@@ -11,6 +11,18 @@ export const chatApi = {
 
   getConversationDetail: (id: string) => api.get(`/conversations/${id}`),
 
+  updateGroup: (id: string, data: { name?: string; description?: string }) =>
+    api.put(`/conversations/${id}`, data),
+
+  addMembers: (convId: string, userIds: string[]) =>
+    api.post(`/conversations/${convId}/members`, { user_ids: userIds }),
+
+  removeMember: (convId: string, userId: string) =>
+    api.delete(`/conversations/${convId}/members/${userId}`),
+
+  leaveGroup: (convId: string) =>
+    api.post(`/conversations/${convId}/leave`),
+
   getMessages: (conversationId: string, before?: string, limit = 50) => {
     const params: Record<string, any> = { limit }
     if (before) params.before = before
diff --git a/frontend/src/api/friends.ts b/frontend/src/api/friends.ts
index c8d7273..1b85549 100644
--- a/frontend/src/api/friends.ts
+++ b/frontend/src/api/friends.ts
@@ -8,12 +8,18 @@ export const friendsApi = {
   sendRequest: (toUserId: string, message?: string) =>
     api.post('/friends/request', { to_user_id: toUserId, message }),
 
+  addDirect: (toUserId: string) =>
+    api.post('/friends/add-direct', { to_user_id: toUserId }),
+
   acceptRequest: (requestId: string) =>
     api.put(`/friends/request/${requestId}/accept`),
 
   rejectRequest: (requestId: string) =>
     api.put(`/friends/request/${requestId}/reject`),
 
+  updateRemark: (friendUserId: string, remark: string | null) =>
+    api.put(`/friends/${friendUserId}/remark`, { remark }),
+
   removeFriend: (friendId: string) =>
     api.delete(`/friends/${friendId}`),
 }
diff --git a/frontend/src/api/moments.ts b/frontend/src/api/moments.ts
new file mode 100644
index 0000000..1812f58
--- /dev/null
+++ b/frontend/src/api/moments.ts
@@ -0,0 +1,30 @@
+import api from './client'
+
+export const momentsApi = {
+  getFeed: (cursor?: string, limit = 20) =>
+    api.get('/moments/', { params: { cursor, limit } }),
+
+  createMoment: (data: { content: string; images?: string[]; visibility?: string }) =>
+    api.post('/moments/', data),
+
+  deleteMoment: (id: string) =>
+    api.delete(`/moments/${id}`),
+
+  toggleLike: (id: string) =>
+    api.post(`/moments/${id}/like`),
+
+  getComments: (id: string) =>
+    api.get(`/moments/${id}/comments`),
+
+  addComment: (momentId: string, content: string, replyToId?: string) =>
+    api.post(`/moments/${momentId}/comments`, {
+      content,
+      reply_to_id: replyToId || null,
+    }),
+
+  deleteComment: (momentId: string, commentId: string) =>
+    api.delete(`/moments/${momentId}/comments/${commentId}`),
+
+  getUserMoments: (userId: string, cursor?: string) =>
+    api.get(`/moments/user/${userId}`, { params: { cursor } }),
+}
diff --git a/frontend/src/layouts/UnifiedLayout.vue b/frontend/src/layouts/UnifiedLayout.vue
new file mode 100644
index 0000000..5a63a6c
--- /dev/null
+++ b/frontend/src/layouts/UnifiedLayout.vue
@@ -0,0 +1,283 @@
+<template>
+  <div class="unified-layout">
+    <!-- 左侧固定图标导航栏 -->
+    <aside class="icon-rail">
+      <div class="rail-logo" @click="$router.push('/chat')">🌿</div>
+      <nav class="rail-nav">
+        <router-link to="/chat" class="rail-item" :class="{ active: activeFeature === 'chat' }" title="消息">
+          <span class="rail-icon">💬</span>
+          <n-badge v-if="totalUnread > 0" :value="totalUnread" :max="99" class="rail-badge" />
+        </router-link>
+        <router-link to="/contacts" class="rail-item" :class="{ active: activeFeature === 'contacts' }" title="通讯录">
+          <span class="rail-icon">👥</span>
+          <n-badge v-if="pendingRequestCount > 0" :value="pendingRequestCount" :max="9" class="rail-badge" />
+        </router-link>
+        <router-link to="/moments" class="rail-item" :class="{ active: activeFeature === 'moments' }" title="朋友圈">
+          <span class="rail-icon">🌿</span>
+        </router-link>
+      </nav>
+      <div class="rail-bottom">
+        <router-link to="/settings" class="rail-item" :class="{ active: activeFeature === 'settings' }" title="设置">
+          <span class="rail-icon">⚙️</span>
+        </router-link>
+        <div class="rail-avatar" @click="$router.push('/settings')">
+          <n-avatar v-if="auth.user?.avatar_url" :src="auth.user.avatar_url" :size="36" round />
+          <n-avatar v-else :size="36" round style="background: var(--color-primary)">
+            {{ displayName.charAt(0).toUpperCase() }}
+          </n-avatar>
+        </div>
+      </div>
+    </aside>
+
+    <!-- 中间辅助面板 -->
+    <div class="secondary-panel" :class="{ 'panel-hidden': isMobile && hideSecondary }">
+      <router-view name="secondary" />
+    </div>
+
+    <!-- 右侧主内容区 -->
+    <div class="main-content" :class="{ 'content-full': isMobile && !hideSecondary }">
+      <router-view />
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed, onMounted, watch } from 'vue'
+import { useRoute } from 'vue-router'
+import { useAuthStore } from '@/stores/auth'
+import { useChatStore } from '@/stores/chat'
+import { useUiStore } from '@/stores/ui'
+import { useWebSocket } from '@/composables/useWebSocket'
+import { friendsApi } from '@/api/friends'
+
+const route = useRoute()
+const auth = useAuthStore()
+const chatStore = useChatStore()
+const uiStore = useUiStore()
+const { connect } = useWebSocket()
+
+const isMobile = computed(() => uiStore.isMobile)
+const hideSecondary = computed(() => {
+  // 在移动端，当进入具体内容页时隐藏辅助面板
+  return route.matched.some((r) => r.meta.hideSecondary)
+})
+
+const pendingRequestCount = ref(0)
+
+const activeFeature = computed(() => {
+  const path = route.path
+  if (path.startsWith('/chat')) return 'chat'
+  if (path.startsWith('/contacts')) return 'contacts'
+  if (path.startsWith('/moments')) return 'moments'
+  if (path.startsWith('/settings')) return 'settings'
+  return 'chat'
+})
+
+const displayName = computed(() => auth.user?.nickname || auth.user?.username || '?')
+
+const totalUnread = computed(() =>
+  chatStore.conversations.reduce((sum: number, c: any) => sum + (c.unread_count || 0), 0)
+)
+
+onMounted(async () => {
+  try {
+    await auth.fetchProfile()
+  } catch {
+    // 未登录，路由守卫会处理
+  }
+  await chatStore.fetchConversations()
+  connect()
+  loadPendingRequests()
+})
+
+async function loadPendingRequests() {
+  try {
+    const { data } = await friendsApi.getPendingRequests()
+    pendingRequestCount.value = Array.isArray(data) ? data.length : 0
+  } catch {
+    // ignore
+  }
+}
+</script>
+
+<script lang="ts">
+import { ref } from 'vue'
+</script>
+
+<style scoped>
+.unified-layout {
+  display: flex;
+  height: 100vh;
+  background: var(--color-bg);
+}
+
+/* 左侧图标栏 */
+.icon-rail {
+  width: 64px;
+  background: var(--color-surface);
+  border-right: 1px solid var(--color-border);
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  padding: 12px 0;
+  flex-shrink: 0;
+  z-index: 10;
+}
+
+.rail-logo {
+  font-size: 28px;
+  margin-bottom: 20px;
+  cursor: pointer;
+  transition: transform 0.2s;
+}
+.rail-logo:hover {
+  transform: scale(1.1);
+}
+
+.rail-nav {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  flex: 1;
+}
+
+.rail-item {
+  width: 44px;
+  height: 44px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 10px;
+  text-decoration: none;
+  font-size: 20px;
+  transition: all 0.2s;
+  position: relative;
+  color: var(--color-text-secondary);
+}
+.rail-item:hover {
+  background: var(--color-primary-lightest);
+}
+.rail-item.active {
+  background: var(--color-primary-lightest);
+  color: var(--color-primary);
+}
+.rail-item.active::before {
+  content: '';
+  position: absolute;
+  left: -10px;
+  top: 50%;
+  transform: translateY(-50%);
+  width: 3px;
+  height: 20px;
+  background: var(--color-primary);
+  border-radius: 0 2px 2px 0;
+}
+
+.rail-badge {
+  position: absolute;
+  top: 4px;
+  right: 2px;
+}
+
+.rail-bottom {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 12px;
+  margin-top: auto;
+  padding-top: 12px;
+  border-top: 1px solid var(--color-border);
+  width: 100%;
+}
+
+.rail-avatar {
+  cursor: pointer;
+  transition: transform 0.2s;
+}
+.rail-avatar:hover {
+  transform: scale(1.05);
+}
+
+/* 中间辅助面板 */
+.secondary-panel {
+  width: 300px;
+  background: var(--color-surface);
+  border-right: 1px solid var(--color-border);
+  display: flex;
+  flex-direction: column;
+  flex-shrink: 0;
+  overflow: hidden;
+  transition: width 0.3s;
+}
+
+.panel-hidden {
+  width: 0;
+  border-right: none;
+}
+
+/* 主内容区 */
+.main-content {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  min-width: 0;
+  background: var(--color-bg);
+}
+
+.content-full {
+  display: none;
+}
+
+/* 移动端 */
+@media (max-width: 768px) {
+  .icon-rail {
+    position: fixed;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    width: 100%;
+    height: 60px;
+    flex-direction: row;
+    padding: 0 8px;
+    border-right: none;
+    border-top: 1px solid var(--color-border);
+    z-index: 100;
+    justify-content: space-around;
+  }
+  .rail-logo {
+    display: none;
+  }
+  .rail-nav {
+    flex-direction: row;
+    gap: 0;
+    flex: 1;
+    justify-content: space-around;
+  }
+  .rail-item.active::before {
+    left: 50%;
+    top: -12px;
+    transform: translateX(-50%);
+    width: 20px;
+    height: 3px;
+    border-radius: 0 0 2px 2px;
+  }
+  .rail-bottom {
+    display: none;
+  }
+  .secondary-panel {
+    width: 100%;
+  }
+  .secondary-panel.panel-hidden {
+    width: 0;
+  }
+  .main-content {
+    padding-bottom: 60px;
+  }
+  .content-full {
+    display: flex;
+  }
+  .unified-layout {
+    padding-bottom: 60px;
+  }
+}
+</style>
diff --git a/frontend/src/main.ts b/frontend/src/main.ts
index 56d50e3..6df4b0b 100644
--- a/frontend/src/main.ts
+++ b/frontend/src/main.ts
@@ -9,6 +9,7 @@ import {
   NConfigProvider,
   NMessageProvider,
   NDialogProvider,
+  NNotificationProvider,
   NButton,
   NInput,
   NForm,
@@ -20,6 +21,27 @@ import {
   NSwitch,
   NSelect,
   NButtonGroup,
+  NModal,
+  NUpload,
+  NTooltip,
+  NTab,
+  NTabs,
+  NTabPane,
+  NDivider,
+  NSpace,
+  NImage,
+  NIcon,
+  NText,
+  NPopconfirm,
+  NResult,
+  NSpin,
+  NEmpty,
+  NGrid,
+  NGridItem,
+  NStatistic,
+  NTag,
+  NRadio,
+  NRadioGroup,
 } from 'naive-ui'
 
 const app = createApp(App)
@@ -34,6 +56,7 @@ const naiveComponents: Record<string, any> = {
   NConfigProvider,
   NMessageProvider,
   NDialogProvider,
+  NNotificationProvider,
   NButton,
   NInput,
   NForm,
@@ -45,6 +68,27 @@ const naiveComponents: Record<string, any> = {
   NSwitch,
   NSelect,
   NButtonGroup,
+  NModal,
+  NUpload,
+  NTooltip,
+  NTab,
+  NTabs,
+  NTabPane,
+  NDivider,
+  NSpace,
+  NImage,
+  NIcon,
+  NText,
+  NPopconfirm,
+  NResult,
+  NSpin,
+  NEmpty,
+  NGrid,
+  NGridItem,
+  NStatistic,
+  NTag,
+  NRadio,
+  NRadioGroup,
 }
 Object.entries(naiveComponents).forEach(([name, component]) => {
   app.component(name, component)
diff --git a/frontend/src/router/index.ts b/frontend/src/router/index.ts
index 7c385e7..a45f839 100644
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -13,36 +13,115 @@ const routes: RouteRecordRaw[] = [
     ],
   },
 
-  // ==================== 聊天主界面（套用 ChatLayout）=====================
+  // ==================== 主界面（统一布局）=====================
   {
     path: '/',
-    component: () => import('@/layouts/ChatLayout.vue'),
+    component: () => import('@/layouts/UnifiedLayout.vue'),
     meta: { requiresAuth: true },
     children: [
+      // 聊天
+      {
+        path: 'chat',
+        children: [
+          {
+            path: '',
+            name: 'ChatList',
+            components: {
+              secondary: () => import('@/views/chat/ConversationListPanel.vue'),
+              default: () => import('@/views/chat/ChatListView.vue'),
+            },
+          },
+          {
+            path: ':id',
+            name: 'ChatRoom',
+            meta: { hideSecondary: true },
+            components: {
+              secondary: () => import('@/views/chat/ConversationListPanel.vue'),
+              default: () => import('@/views/chat/ChatRoomView.vue'),
+            },
+          },
+        ],
+      },
+
+      // 通讯录
+      {
+        path: 'contacts',
+        children: [
+          {
+            path: '',
+            name: 'Contacts',
+            components: {
+              secondary: () => import('@/views/contacts/ContactsSidebar.vue'),
+              default: () => import('@/views/contacts/ContactsView.vue'),
+            },
+          },
+          {
+            path: 'search',
+            name: 'Search',
+            components: {
+              secondary: () => import('@/views/contacts/ContactsSidebar.vue'),
+              default: () => import('@/views/contacts/SearchView.vue'),
+            },
+          },
+        ],
+      },
+
+      // 朋友圈
+      {
+        path: 'moments',
+        name: 'Moments',
+        components: {
+          secondary: () => import('@/views/moments/MomentsFeedView.vue'),
+          default: () => import('@/views/moments/MomentsFeedView.vue'),
+        },
+      },
+
+      // 设置
+      {
+        path: 'settings',
+        children: [
+          {
+            path: '',
+            redirect: '/settings/profile',
+          },
+          {
+            path: 'profile',
+            name: 'SettingsProfile',
+            components: {
+              secondary: () => import('@/views/settings/SettingsSidebar.vue'),
+              default: () => import('@/views/settings/ProfileSettingsView.vue'),
+            },
+          },
+          {
+            path: 'account',
+            name: 'SettingsAccount',
+            components: {
+              secondary: () => import('@/views/settings/SettingsSidebar.vue'),
+              default: () => import('@/views/settings/AccountSettingsView.vue'),
+            },
+          },
+          {
+            path: 'notifications',
+            name: 'SettingsNotifications',
+            components: {
+              secondary: () => import('@/views/settings/SettingsSidebar.vue'),
+              default: () => import('@/views/settings/NotificationSettingsView.vue'),
+            },
+          },
+          {
+            path: 'about',
+            name: 'SettingsAbout',
+            components: {
+              secondary: () => import('@/views/settings/SettingsSidebar.vue'),
+              default: () => import('@/views/settings/AboutView.vue'),
+            },
+          },
+        ],
+      },
+
+      // 根路径重定向
       { path: '', redirect: '/chat' },
-      { path: 'chat', name: 'ChatList', component: () => import('@/views/chat/ChatListView.vue') },
-      { path: 'chat/:id', name: 'ChatRoom', component: () => import('@/views/chat/ChatRoomView.vue') },
-    ],
-  },
-
-  // ==================== 通讯录（套用 MainLayout）=====================
-  {
-    path: '/contacts',
-    component: () => import('@/layouts/MainLayout.vue'),
-    meta: { requiresAuth: true },
-    children: [
-      { path: '', name: 'Contacts', component: () => import('@/views/contacts/ContactsView.vue') },
-      { path: 'search', name: 'Search', component: () => import('@/views/contacts/SearchView.vue') },
-    ],
-  },
-
-  // ==================== 个人中心 =====================
-  {
-    path: '/profile',
-    component: () => import('@/layouts/MainLayout.vue'),
-    meta: { requiresAuth: true },
-    children: [
-      { path: '', name: 'Profile', component: () => import('@/views/profile/ProfileView.vue') },
+      { path: 'profile', redirect: '/settings/profile' },
     ],
   },
 
diff --git a/frontend/src/stores/moments.ts b/frontend/src/stores/moments.ts
new file mode 100644
index 0000000..822854b
--- /dev/null
+++ b/frontend/src/stores/moments.ts
@@ -0,0 +1,73 @@
+import { defineStore } from 'pinia'
+import { ref } from 'vue'
+import { momentsApi } from '@/api/moments'
+
+export const useMomentsStore = defineStore('moments', () => {
+  const feed = ref<any[]>([])
+  const isLoading = ref(false)
+  const hasMore = ref(true)
+  const cursor = ref<string | null>(null)
+
+  async function fetchFeed(refresh = false) {
+    if (isLoading.value) return
+    if (!refresh && !hasMore.value) return
+
+    isLoading.value = true
+    try {
+      if (refresh) {
+        cursor.value = null
+        feed.value = []
+        hasMore.value = true
+      }
+      const { data } = await momentsApi.getFeed(cursor.value || undefined)
+      if (refresh) {
+        feed.value = data
+      } else {
+        feed.value = [...feed.value, ...data]
+      }
+      if (data.length > 0) {
+        cursor.value = data[data.length - 1].id
+      }
+      if (data.length < 20) {
+        hasMore.value = false
+      }
+    } finally {
+      isLoading.value = false
+    }
+  }
+
+  async function createMoment(content: string, images?: string[], visibility?: string) {
+    const { data } = await momentsApi.createMoment({ content, images, visibility })
+    feed.value.unshift(data)
+    return data
+  }
+
+  async function toggleLike(momentId: string) {
+    const { data } = await momentsApi.toggleLike(momentId)
+    const moment = feed.value.find((m) => m.id === momentId)
+    if (moment) {
+      moment.is_liked = data.is_liked
+      moment.like_count = data.is_liked ? moment.like_count + 1 : Math.max(0, moment.like_count - 1)
+    }
+    return data
+  }
+
+  async function addComment(momentId: string, content: string, replyToId?: string) {
+    const { data } = await momentsApi.addComment(momentId, content, replyToId)
+    const moment = feed.value.find((m) => m.id === momentId)
+    if (moment) {
+      moment.comment_count = (moment.comment_count || 0) + 1
+    }
+    return data
+  }
+
+  async function deleteMoment(momentId: string) {
+    await momentsApi.deleteMoment(momentId)
+    feed.value = feed.value.filter((m) => m.id !== momentId)
+  }
+
+  return {
+    feed, isLoading, hasMore,
+    fetchFeed, createMoment, toggleLike, addComment, deleteMoment,
+  }
+})
diff --git a/frontend/src/views/chat/ChatRoomView.vue b/frontend/src/views/chat/ChatRoomView.vue
index 94e8f3f..1ca288a 100644
--- a/frontend/src/views/chat/ChatRoomView.vue
+++ b/frontend/src/views/chat/ChatRoomView.vue
@@ -3,56 +3,76 @@
     <!-- 聊天头部 -->
     <div class="chat-header">
       <n-button v-if="uiStore.isMobile" quaternary circle @click="$router.push('/chat')">←</n-button>
-      <span class="room-name">{{ conversationName }}</span>
+      <div class="header-info">
+        <span class="room-name">{{ conversationName }}</span>
+        <span v-if="convDetail?.type === 'group'" class="member-count">
+          ({{ convDetail.members?.length || 0 }}人)
+        </span>
+      </div>
       <!-- 聊天风格切换 -->
       <n-button-group size="tiny" style="margin-left: auto">
         <n-button :type="uiStore.chatStyle === 'classic' ? 'primary' : 'default'" @click="uiStore.setChatStyle('classic')">经典</n-button>
         <n-button :type="uiStore.chatStyle === 'compact' ? 'primary' : 'default'" @click="uiStore.setChatStyle('compact')">紧凑</n-button>
         <n-button :type="uiStore.chatStyle === 'bubble' ? 'primary' : 'default'" @click="uiStore.setChatStyle('bubble')">气泡</n-button>
       </n-button-group>
+      <!-- 群聊信息按钮 -->
+      <n-button v-if="convDetail?.type === 'group'" quaternary circle size="small" @click="showGroupInfo = !showGroupInfo" title="群信息">
+        ℹ️
+      </n-button>
     </div>
 
-    <!-- 消息列表 -->
-    <div class="message-list" ref="messageListRef">
-      <div v-if="chatStore.currentMessages.length === 0" class="no-messages">
-        <p>开始聊天吧 🌿</p>
-      </div>
-      <div
-        v-for="msg in chatStore.currentMessages" :key="msg.id"
-        class="message-row" :class="{
-          'own': msg.sender_id === auth.user?.id,
-          'other': msg.sender_id !== auth.user?.id,
-          [`style-${uiStore.chatStyle}`]: true,
-        }"
-      >
-        <template v-if="msg.type === 'system'">
-          <div class="system-msg">{{ msg.content }}</div>
-        </template>
-        <template v-else>
-          <div v-if="msg.sender_id !== auth.user?.id" class="avatar">
-            <n-avatar :size="uiStore.chatStyle === 'compact' ? 28 : 34" round
-              :style="{ background: 'var(--color-primary)' }">
-              {{ (msg.sender_name || '?')[0] }}
-            </n-avatar>
-          </div>
-          <div class="bubble-area">
-            <div v-if="uiStore.chatStyle !== 'compact' && msg.sender_id !== auth.user?.id" class="sender-name">
-              {{ msg.sender_name }}
-            </div>
-            <div class="bubble" :class="{ 'bubble-self': msg.sender_id === auth.user?.id, 'bubble-other': msg.sender_id !== auth.user?.id }">
-              <img v-if="msg.type === 'image'" :src="msg.content" class="msg-image" />
-              <span v-else>{{ msg.content }}</span>
-            </div>
-            <div v-if="uiStore.chatStyle === 'classic'" class="msg-time">
-              {{ formatTime(msg.created_at) }}
-            </div>
-          </div>
-          <div v-if="msg.sender_id === auth.user?.id" class="avatar">
-            <n-avatar :size="uiStore.chatStyle === 'compact' ? 28 : 34" round
-              style="background: var(--color-primary-dark)">我</n-avatar>
-          </div>
-        </template>
+    <div class="chat-body">
+      <!-- 消息列表 -->
+      <div class="message-list" ref="messageListRef">
+        <div v-if="chatStore.currentMessages.length === 0" class="no-messages">
+          <p>开始聊天吧 🌿</p>
+        </div>
+        <div
+          v-for="msg in chatStore.currentMessages" :key="msg.id"
+          class="message-row" :class="{
+            'own': msg.sender_id === auth.user?.id,
+            'other': msg.sender_id !== auth.user?.id,
+            [`style-${uiStore.chatStyle}`]: true,
+          }"
+        >
+          <template v-if="msg.type === 'system'">
+            <div class="system-msg">{{ msg.content }}</div>
+          </template>
+          <template v-else>
+            <div v-if="msg.sender_id !== auth.user?.id" class="avatar">
+              <n-avatar :size="uiStore.chatStyle === 'compact' ? 28 : 34" round
+                :style="{ background: 'var(--color-primary)' }">
+                {{ (msg.sender_name || '?')[0] }}
+              </n-avatar>
+            </div>
+            <div class="bubble-area">
+              <div v-if="uiStore.chatStyle !== 'compact' && msg.sender_id !== auth.user?.id" class="sender-name">
+                {{ msg.sender_name }}
+              </div>
+              <div class="bubble" :class="{ 'bubble-self': msg.sender_id === auth.user?.id, 'bubble-other': msg.sender_id !== auth.user?.id }">
+                <img v-if="msg.type === 'image'" :src="msg.content" class="msg-image" />
+                <span v-else>{{ msg.content }}</span>
+              </div>
+              <div v-if="uiStore.chatStyle === 'classic'" class="msg-time">
+                {{ formatTime(msg.created_at) }}
+              </div>
+            </div>
+            <div v-if="msg.sender_id === auth.user?.id" class="avatar">
+              <n-avatar :size="uiStore.chatStyle === 'compact' ? 28 : 34" round
+                style="background: var(--color-primary-dark)">我</n-avatar>
+            </div>
+          </template>
+        </div>
       </div>
+
+      <!-- 群聊信息侧栏 -->
+      <GroupInfoPanel
+        v-if="showGroupInfo && convDetail?.type === 'group'"
+        :conversation-id="String(route.params.id)"
+        :detail="convDetail"
+        @close="showGroupInfo = false"
+        @updated="loadDetail"
+      />
     </div>
 
     <!-- 输入框 -->
@@ -73,6 +93,8 @@ import { useChatStore } from '@/stores/chat'
 import { useAuthStore } from '@/stores/auth'
 import { useUiStore } from '@/stores/ui'
 import { useWebSocket } from '@/composables/useWebSocket'
+import { chatApi } from '@/api/chat'
+import GroupInfoPanel from './GroupInfoPanel.vue'
 import dayjs from 'dayjs'
 
 const route = useRoute()
@@ -84,16 +106,29 @@ const { send } = useWebSocket()
 const inputText = ref('')
 const messageListRef = ref<HTMLElement>()
 const conversationName = ref('')
+const convDetail = ref<any>(null)
+const showGroupInfo = ref(false)
 
 onMounted(async () => {
   const id = route.params.id as string
   if (id) {
     await chatStore.fetchMessages(id)
+    await loadDetail()
     await nextTick()
     scrollToBottom()
   }
 })
 
+async function loadDetail() {
+  const id = route.params.id as string
+  if (!id) return
+  try {
+    const { data } = await chatApi.getConversationDetail(id)
+    convDetail.value = data
+    conversationName.value = data.name || '未命名'
+  } catch {}
+}
+
 watch(() => chatStore.currentMessages.length, () => {
   nextTick(scrollToBottom)
 })
@@ -127,7 +162,11 @@ function formatTime(time: string) {
   padding: 12px 20px; border-bottom: 1px solid var(--color-border);
   background: var(--color-surface);
 }
+.header-info { display: flex; align-items: baseline; gap: 4px; }
 .room-name { font-weight: 600; font-size: 16px; }
+.member-count { font-size: 12px; color: var(--color-text-hint); }
+
+.chat-body { flex: 1; display: flex; overflow: hidden; }
 
 .message-list { flex: 1; overflow-y: auto; padding: 16px 20px; }
 .no-messages { text-align: center; padding-top: 120px; color: var(--color-text-hint); }
diff --git a/frontend/src/views/chat/ConversationListPanel.vue b/frontend/src/views/chat/ConversationListPanel.vue
new file mode 100644
index 0000000..963c172
--- /dev/null
+++ b/frontend/src/views/chat/ConversationListPanel.vue
@@ -0,0 +1,216 @@
+<template>
+  <div class="conv-list-panel">
+    <div class="panel-header">
+      <h3 class="panel-title">消息</h3>
+      <div class="header-actions">
+        <n-button quaternary circle size="small" @click="$router.push('/contacts/search')" title="搜索添加好友">🔍</n-button>
+        <n-button quaternary circle size="small" @click="showCreateGroup = true" title="创建群聊">👥</n-button>
+      </div>
+    </div>
+    <!-- 搜索框 -->
+    <div class="search-bar">
+      <n-input v-model:value="searchKeyword" placeholder="搜索会话..." size="small" clearable />
+    </div>
+    <!-- 布局模式切换 -->
+    <div class="layout-switch">
+      <n-button-group size="tiny">
+        <n-button :type="uiStore.layoutMode === 'list' ? 'primary' : 'default'" @click="uiStore.setLayoutMode('list')">列表</n-button>
+        <n-button :type="uiStore.layoutMode === 'card' ? 'primary' : 'default'" @click="uiStore.setLayoutMode('card')">卡片</n-button>
+        <n-button :type="uiStore.layoutMode === 'waterfall' ? 'primary' : 'default'" @click="uiStore.setLayoutMode('waterfall')">瀑布流</n-button>
+      </n-button-group>
+    </div>
+    <!-- 会话列表 -->
+    <div class="conversation-list">
+      <div v-if="chatStore.isLoading" style="text-align: center; padding: 40px; color: var(--color-text-hint)">加载中...</div>
+      <div v-else-if="filteredConversations.length === 0" class="empty-state">
+        <div style="font-size: 48px">💬</div>
+        <p>{{ searchKeyword ? '没有找到匹配的会话' : '暂无消息' }}</p>
+        <p style="font-size: 13px; color: var(--color-text-hint)">去通讯录找朋友聊天吧</p>
+      </div>
+      <!-- 列表模式 -->
+      <template v-if="uiStore.layoutMode === 'list'">
+        <div v-for="conv in filteredConversations" :key="conv.id"
+          class="conv-item" :class="{ active: chatStore.activeConversation === conv.id }"
+          @click="openChat(conv.id)">
+          <n-avatar :size="46" round :style="{ background: 'var(--color-primary)' }">
+            {{ (conv.name || '?')[0] }}
+          </n-avatar>
+          <div class="conv-info">
+            <div class="conv-top">
+              <span class="conv-name">{{ conv.name || '未命名' }}</span>
+              <span class="conv-time">{{ formatTime(conv.last_message_at) }}</span>
+            </div>
+            <div class="conv-bottom">
+              <span class="conv-preview">{{ conv.last_message_preview || '' }}</span>
+              <n-badge v-if="conv.unread_count > 0" :value="conv.unread_count" :max="99" />
+            </div>
+          </div>
+        </div>
+      </template>
+      <!-- 卡片模式 -->
+      <template v-else-if="uiStore.layoutMode === 'card'">
+        <div class="card-grid">
+          <div v-for="conv in filteredConversations" :key="conv.id"
+            class="conv-card" :class="{ active: chatStore.activeConversation === conv.id }"
+            @click="openChat(conv.id)">
+            <n-avatar :size="56" round :style="{ background: 'var(--color-primary)' }">
+              {{ (conv.name || '?')[0] }}
+            </n-avatar>
+            <div class="conv-card-name">{{ conv.name || '未命名' }}</div>
+            <div class="conv-card-preview">{{ conv.last_message_preview?.substring(0, 30) || '' }}</div>
+            <n-badge v-if="conv.unread_count > 0" :value="conv.unread_count" :max="99" style="position: absolute; top: 8px; right: 8px" />
+          </div>
+        </div>
+      </template>
+      <!-- 瀑布流模式 -->
+      <template v-else>
+        <div class="waterfall-grid">
+          <div v-for="conv in filteredConversations" :key="conv.id"
+            class="conv-waterfall" @click="openChat(conv.id)">
+            <div class="wf-header">
+              <n-avatar :size="32" round :style="{ background: 'var(--color-primary)' }">
+                {{ (conv.name || '?')[0] }}
+              </n-avatar>
+              <span class="wf-name">{{ conv.name }}</span>
+            </div>
+            <div class="wf-content">{{ conv.last_message_preview || '暂无消息' }}</div>
+            <div class="wf-footer">
+              <span>{{ formatTime(conv.last_message_at) }}</span>
+              <n-badge v-if="conv.unread_count > 0" :value="conv.unread_count" :max="99" />
+            </div>
+          </div>
+        </div>
+      </template>
+    </div>
+    <!-- 创建群聊弹窗 -->
+    <CreateGroupModal :visible="showCreateGroup" @close="showCreateGroup = false" @created="onGroupCreated" />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed } from 'vue'
+import { useRouter } from 'vue-router'
+import { useChatStore } from '@/stores/chat'
+import { useUiStore } from '@/stores/ui'
+import CreateGroupModal from './CreateGroupModal.vue'
+import dayjs from 'dayjs'
+
+const router = useRouter()
+const chatStore = useChatStore()
+const uiStore = useUiStore()
+const searchKeyword = ref('')
+const showCreateGroup = ref(false)
+
+const filteredConversations = computed(() => {
+  if (!searchKeyword.value) return chatStore.conversations
+  const kw = searchKeyword.value.toLowerCase()
+  return chatStore.conversations.filter((c: any) =>
+    (c.name || '').toLowerCase().includes(kw) ||
+    (c.last_message_preview || '').toLowerCase().includes(kw)
+  )
+})
+
+function openChat(id: string) {
+  router.push(`/chat/${id}`)
+}
+
+async function onGroupCreated() {
+  await chatStore.fetchConversations()
+}
+
+function formatTime(time: string | null) {
+  if (!time) return ''
+  const d = dayjs(time)
+  const now = dayjs()
+  if (d.isSame(now, 'day')) return d.format('HH:mm')
+  if (d.isSame(now.subtract(1, 'day'), 'day')) return '昨天'
+  return d.format('MM/DD')
+}
+</script>
+
+<style scoped>
+.conv-list-panel {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+}
+
+.panel-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 16px;
+  border-bottom: 1px solid var(--color-border);
+}
+
+.panel-title {
+  margin: 0;
+  font-size: 16px;
+  font-weight: 600;
+  color: var(--color-text-primary);
+}
+
+.search-bar {
+  padding: 8px 12px;
+}
+
+.layout-switch {
+  padding: 4px 12px 8px;
+  text-align: center;
+}
+
+.conversation-list {
+  flex: 1;
+  overflow-y: auto;
+}
+
+.empty-state {
+  text-align: center;
+  padding: 60px 20px;
+  color: var(--color-text-secondary);
+}
+
+/* 列表模式 */
+.conv-item {
+  display: flex;
+  align-items: center;
+  padding: 12px 16px;
+  gap: 12px;
+  cursor: pointer;
+  transition: background 0.15s;
+  border-bottom: 0.5px solid var(--color-border);
+}
+.conv-item:hover { background: var(--color-primary-lightest); }
+.conv-item.active { background: var(--color-primary-lightest); border-left: 3px solid var(--color-primary); }
+.conv-info { flex: 1; min-width: 0; }
+.conv-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
+.conv-name { font-weight: 500; font-size: 14px; }
+.conv-time { font-size: 11px; color: var(--color-text-hint); }
+.conv-bottom { display: flex; justify-content: space-between; align-items: center; }
+.conv-preview { font-size: 12px; color: var(--color-text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
+
+/* 卡片模式 */
+.card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 8px 12px; }
+.conv-card {
+  background: var(--color-surface-elevated); border-radius: 10px; padding: 14px;
+  text-align: center; cursor: pointer; border: 1px solid var(--color-border);
+  transition: all 0.2s; position: relative;
+}
+.conv-card:hover { border-color: var(--color-primary-lighter); box-shadow: 0 2px 8px rgba(0,150,136,0.08); }
+.conv-card.active { border-color: var(--color-primary); background: var(--color-primary-lightest); }
+.conv-card-name { font-weight: 500; margin-top: 6px; font-size: 13px; }
+.conv-card-preview { font-size: 11px; color: var(--color-text-hint); margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+
+/* 瀑布流模式 */
+.waterfall-grid { columns: 2; column-gap: 8px; padding: 8px 12px; }
+.conv-waterfall {
+  break-inside: avoid; background: var(--color-surface-elevated); border-radius: 10px;
+  padding: 12px; margin-bottom: 8px; cursor: pointer; border: 1px solid var(--color-border);
+  transition: all 0.2s;
+}
+.conv-waterfall:hover { border-color: var(--color-primary-lighter); }
+.wf-header { display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
+.wf-name { font-weight: 500; font-size: 13px; }
+.wf-content { font-size: 12px; color: var(--color-text-secondary); line-height: 1.4; margin-bottom: 6px; }
+.wf-footer { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--color-text-hint); }
+</style>
diff --git a/frontend/src/views/chat/CreateGroupModal.vue b/frontend/src/views/chat/CreateGroupModal.vue
new file mode 100644
index 0000000..b123868
--- /dev/null
+++ b/frontend/src/views/chat/CreateGroupModal.vue
@@ -0,0 +1,133 @@
+<template>
+  <div v-if="visible" class="modal-overlay" @click.self="$emit('close')">
+    <div class="modal-card">
+      <div class="modal-header">
+        <h3>创建群聊</h3>
+        <span class="close-btn" @click="$emit('close')">✕</span>
+      </div>
+      <div class="modal-body">
+        <div class="form-group">
+          <label>群名称</label>
+          <n-input v-model:value="groupName" placeholder="给群聊起个名字" maxlength="50" />
+        </div>
+        <div class="form-group">
+          <label>群简介（可选）</label>
+          <n-input v-model:value="groupDesc" type="textarea" :rows="2" placeholder="介绍一下这个群..." maxlength="200" />
+        </div>
+        <div class="form-group">
+          <label>选择成员 ({{ selectedFriends.size }} 人)</label>
+          <div v-if="friends.length === 0" class="no-friends">暂无好友，请先添加好友</div>
+          <div v-else class="friend-select-list">
+            <div v-for="friend in friends" :key="friend.friend_user_id"
+              class="friend-select-item" :class="{ selected: selectedFriends.has(friend.friend_user_id) }"
+              @click="toggleFriend(friend.friend_user_id)">
+              <n-avatar :size="32" round :style="{ background: 'var(--color-primary)' }">
+                {{ (friend.remark || friend.nickname || friend.username || '?')[0] }}
+              </n-avatar>
+              <span class="friend-name">{{ friend.remark || friend.nickname || friend.username }}</span>
+              <span class="check-mark">{{ selectedFriends.has(friend.friend_user_id) ? '✓' : '' }}</span>
+            </div>
+          </div>
+        </div>
+      </div>
+      <div class="modal-footer">
+        <n-button @click="$emit('close')">取消</n-button>
+        <n-button type="primary" :loading="creating" :disabled="!groupName.trim() || selectedFriends.size === 0" @click="handleCreate">
+          创建群聊 ({{ selectedFriends.size + 1 }} 人)
+        </n-button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { useRouter } from 'vue-router'
+import { useMessage } from 'naive-ui'
+import { friendsApi } from '@/api/friends'
+import { chatApi } from '@/api/chat'
+
+defineProps<{ visible: boolean }>()
+const emit = defineEmits<{ close: []; created: [] }>()
+
+const router = useRouter()
+const message = useMessage()
+const friends = ref<any[]>([])
+const selectedFriends = ref<Set<string>>(new Set())
+const groupName = ref('')
+const groupDesc = ref('')
+const creating = ref(false)
+
+onMounted(async () => {
+  try {
+    const { data } = await friendsApi.getFriends()
+    friends.value = data
+  } catch {}
+})
+
+function toggleFriend(userId: string) {
+  const newSet = new Set(selectedFriends.value)
+  if (newSet.has(userId)) {
+    newSet.delete(userId)
+  } else {
+    newSet.add(userId)
+  }
+  selectedFriends.value = newSet
+}
+
+async function handleCreate() {
+  if (!groupName.value.trim()) return
+  creating.value = true
+  try {
+    const { data } = await chatApi.createGroup(
+      groupName.value.trim(),
+      Array.from(selectedFriends.value),
+      groupDesc.value.trim() || undefined
+    )
+    message.success('群聊创建成功')
+    emit('created')
+    emit('close')
+    router.push(`/chat/${data.id}`)
+  } catch (e: any) {
+    message.error(e.response?.data?.detail || '创建失败')
+  } finally {
+    creating.value = false
+  }
+}
+</script>
+
+<style scoped>
+.modal-overlay {
+  position: fixed; inset: 0; background: rgba(0,0,0,0.4);
+  display: flex; align-items: center; justify-content: center; z-index: 1000;
+}
+.modal-card {
+  width: 440px; max-height: 80vh; background: var(--color-surface);
+  border-radius: 16px; display: flex; flex-direction: column;
+  box-shadow: 0 12px 40px rgba(0,0,0,0.15);
+}
+.modal-header {
+  display: flex; justify-content: space-between; align-items: center;
+  padding: 20px 24px 16px; border-bottom: 1px solid var(--color-border);
+}
+.modal-header h3 { margin: 0; font-size: 18px; }
+.close-btn { cursor: pointer; font-size: 18px; color: var(--color-text-hint); padding: 4px; }
+.close-btn:hover { color: var(--color-text-primary); }
+.modal-body { flex: 1; overflow-y: auto; padding: 16px 24px; }
+.modal-footer {
+  display: flex; justify-content: flex-end; gap: 8px;
+  padding: 16px 24px; border-top: 1px solid var(--color-border);
+}
+.form-group { margin-bottom: 16px; }
+.form-group label { display: block; font-size: 13px; color: var(--color-text-secondary); margin-bottom: 6px; }
+.no-friends { padding: 20px; text-align: center; color: var(--color-text-hint); font-size: 13px; }
+.friend-select-list { max-height: 240px; overflow-y: auto; }
+.friend-select-item {
+  display: flex; align-items: center; gap: 10px; padding: 8px 12px;
+  border-radius: 8px; cursor: pointer; transition: background 0.15s;
+}
+.friend-select-item:hover { background: var(--color-primary-lightest); }
+.friend-select-item.selected { background: var(--color-primary-lightest); }
+.friend-name { flex: 1; font-size: 14px; }
+.check-mark { width: 20px; text-align: center; color: var(--color-primary); font-weight: bold; }
+</style>
diff --git a/frontend/src/views/chat/GroupInfoPanel.vue b/frontend/src/views/chat/GroupInfoPanel.vue
new file mode 100644
index 0000000..a32af2d
--- /dev/null
+++ b/frontend/src/views/chat/GroupInfoPanel.vue
@@ -0,0 +1,156 @@
+<template>
+  <div class="group-info-panel">
+    <div class="panel-header">
+      <h3>群聊信息</h3>
+      <span class="close-btn" @click="$emit('close')">✕</span>
+    </div>
+    <div v-if="detail" class="panel-body">
+      <!-- 群头像和名称 -->
+      <div class="group-header">
+        <n-avatar :size="64" round :style="{ background: 'var(--color-primary)', fontSize: '24px' }">
+          {{ (detail.name || '群')[0] }}
+        </n-avatar>
+        <div class="group-meta">
+          <span class="group-name">{{ detail.name || '未命名群聊' }}</span>
+          <span class="group-desc">{{ detail.description || '暂无简介' }}</span>
+          <span class="member-count">{{ detail.members?.length || 0 }} 人</span>
+        </div>
+      </div>
+
+      <!-- 修改群名（管理员） -->
+      <div v-if="isAdmin" class="section">
+        <div class="form-row">
+          <n-input v-model:value="editName" placeholder="群名称" size="small" style="flex: 1" />
+          <n-button size="small" type="primary" @click="saveGroupInfo">保存</n-button>
+        </div>
+      </div>
+
+      <!-- 成员列表 -->
+      <div class="section">
+        <div class="section-header">
+          <span>群成员</span>
+          <n-button v-if="isAdmin" size="tiny" @click="showAddMember = true">添加成员</n-button>
+        </div>
+        <div class="member-list">
+          <div v-for="member in detail.members" :key="member.user_id" class="member-item">
+            <n-avatar :size="36" round :style="{ background: 'var(--color-primary)' }">
+              {{ (member.nickname || member.username || '?')[0] }}
+            </n-avatar>
+            <div class="member-info">
+              <span class="member-name">{{ member.nickname || member.username }}</span>
+              <span class="member-role" :class="member.role">{{ roleLabel(member.role) }}</span>
+            </div>
+            <n-button v-if="isAdmin && member.role !== 'owner'" size="tiny" quaternary type="error"
+              @click="removeMember(member.user_id)">移除</n-button>
+          </div>
+        </div>
+      </div>
+
+      <!-- 操作按钮 -->
+      <div class="section actions">
+        <n-button v-if="isOwner" type="error" ghost block>解散群聊</n-button>
+        <n-button v-else type="error" ghost block @click="leaveGroup">退出群聊</n-button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, watch } from 'vue'
+import { useMessage } from 'naive-ui'
+import { useAuthStore } from '@/stores/auth'
+import { chatApi } from '@/api/chat'
+
+const props = defineProps<{ conversationId: string; detail: any }>()
+const emit = defineEmits<{ close: []; updated: [] }>()
+
+const auth = useAuthStore()
+const message = useMessage()
+const editName = ref('')
+const showAddMember = ref(false)
+
+const myRole = computed(() => {
+  const me = props.detail?.members?.find((m: any) => m.user_id === auth.user?.id)
+  return me?.role || 'member'
+})
+const isAdmin = computed(() => myRole.value === 'owner' || myRole.value === 'admin')
+const isOwner = computed(() => myRole.value === 'owner')
+
+watch(() => props.detail, (d) => {
+  if (d) editName.value = d.name || ''
+}, { immediate: true })
+
+function roleLabel(role: string) {
+  if (role === 'owner') return '群主'
+  if (role === 'admin') return '管理员'
+  return ''
+}
+
+async function saveGroupInfo() {
+  try {
+    await chatApi.updateGroup(props.conversationId, { name: editName.value })
+    message.success('群信息已更新')
+    emit('updated')
+  } catch (e: any) {
+    message.error(e.response?.data?.detail || '更新失败')
+  }
+}
+
+async function removeMember(userId: string) {
+  try {
+    await chatApi.removeMember(props.conversationId, userId)
+    message.success('已移除成员')
+    emit('updated')
+  } catch (e: any) {
+    message.error(e.response?.data?.detail || '操作失败')
+  }
+}
+
+async function leaveGroup() {
+  try {
+    await chatApi.leaveGroup(props.conversationId)
+    message.success('已退出群聊')
+    emit('close')
+  } catch (e: any) {
+    message.error(e.response?.data?.detail || '退出失败')
+  }
+}
+</script>
+
+<style scoped>
+.group-info-panel {
+  width: 320px; background: var(--color-surface);
+  border-left: 1px solid var(--color-border);
+  display: flex; flex-direction: column; height: 100%;
+}
+.panel-header {
+  display: flex; justify-content: space-between; align-items: center;
+  padding: 16px; border-bottom: 1px solid var(--color-border);
+}
+.panel-header h3 { margin: 0; font-size: 16px; }
+.close-btn { cursor: pointer; font-size: 16px; color: var(--color-text-hint); }
+.close-btn:hover { color: var(--color-text-primary); }
+.panel-body { flex: 1; overflow-y: auto; padding: 16px; }
+.group-header { text-align: center; margin-bottom: 20px; }
+.group-meta { margin-top: 8px; }
+.group-name { font-size: 18px; font-weight: 600; display: block; }
+.group-desc { font-size: 13px; color: var(--color-text-secondary); display: block; margin-top: 4px; }
+.member-count { font-size: 12px; color: var(--color-text-hint); display: block; margin-top: 2px; }
+.section { margin-bottom: 16px; }
+.section-header {
+  display: flex; justify-content: space-between; align-items: center;
+  font-size: 13px; color: var(--color-text-secondary); margin-bottom: 8px;
+}
+.form-row { display: flex; gap: 8px; }
+.member-list { display: flex; flex-direction: column; gap: 4px; }
+.member-item {
+  display: flex; align-items: center; gap: 10px;
+  padding: 8px; border-radius: 8px;
+}
+.member-info { flex: 1; display: flex; align-items: center; gap: 6px; }
+.member-name { font-size: 14px; }
+.member-role { font-size: 11px; padding: 1px 6px; border-radius: 4px; background: var(--color-primary-lightest); color: var(--color-primary); }
+.member-role.owner { background: #FFF3E0; color: #F57C00; }
+.member-role.admin { background: #E3F2FD; color: #1976D2; }
+.actions { padding-top: 12px; border-top: 1px solid var(--color-border); }
+</style>
diff --git a/frontend/src/views/contacts/ContactsSidebar.vue b/frontend/src/views/contacts/ContactsSidebar.vue
new file mode 100644
index 0000000..7d809eb
--- /dev/null
+++ b/frontend/src/views/contacts/ContactsSidebar.vue
@@ -0,0 +1,129 @@
+<template>
+  <div class="contacts-sidebar">
+    <div class="panel-header">
+      <h3 class="panel-title">通讯录</h3>
+      <n-button quaternary circle size="small" @click="$router.push('/contacts/search')" title="搜索添加">➕</n-button>
+    </div>
+    <div class="search-bar">
+      <n-input v-model:value="searchKeyword" placeholder="搜索好友..." size="small" clearable />
+    </div>
+    <!-- 好友请求 -->
+    <div v-if="pendingRequests.length > 0" class="section" @click="$router.push('/contacts')">
+      <div class="request-banner">
+        <span>👤</span>
+        <span class="request-text"> {{ pendingRequests.length }} 个好友请求</span>
+      </div>
+    </div>
+    <!-- 好友列表 -->
+    <div class="friend-list">
+      <div v-if="isLoading" style="text-align: center; padding: 40px; color: var(--color-text-hint)">加载中...</div>
+      <div v-else-if="filteredFriends.length === 0" class="empty">
+        <p style="color: var(--color-text-hint); font-size: 13px">
+          {{ searchKeyword ? '没有找到匹配的好友' : '还没有好友' }}
+        </p>
+      </div>
+      <div v-for="friend in filteredFriends" :key="friend.id" class="friend-item"
+        :class="{ active: selectedFriendId === friend.friend_user_id }"
+        @click="selectFriend(friend)">
+        <n-avatar :size="38" round :style="{ background: 'var(--color-primary)' }">
+          {{ (friend.remark || friend.username || '?')[0] }}
+        </n-avatar>
+        <div class="friend-info">
+          <span class="friend-name">{{ friend.remark || friend.username }}</span>
+          <span class="friend-status" :class="friend.status">·</span>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted } from 'vue'
+import { useRouter, useRoute } from 'vue-router'
+import { useMessage } from 'naive-ui'
+import { friendsApi } from '@/api/friends'
+import { chatApi } from '@/api/chat'
+
+const router = useRouter()
+const route = useRoute()
+const message = useMessage()
+const searchKeyword = ref('')
+const friends = ref<any[]>([])
+const pendingRequests = ref<any[]>([])
+const isLoading = ref(false)
+const selectedFriendId = computed(() => route.query.friend_id as string || '')
+
+const filteredFriends = computed(() => {
+  if (!searchKeyword.value) return friends.value
+  const kw = searchKeyword.value.toLowerCase()
+  return friends.value.filter((f: any) =>
+    (f.remark || f.username || '').toLowerCase().includes(kw)
+  )
+})
+
+onMounted(async () => {
+  isLoading.value = true
+  await Promise.all([loadFriends(), loadRequests()])
+  isLoading.value = false
+})
+
+async function loadFriends() {
+  try { const { data } = await friendsApi.getFriends(); friends.value = data } catch {}
+}
+async function loadRequests() {
+  try { const { data } = await friendsApi.getPendingRequests(); pendingRequests.value = data } catch {}
+}
+
+async function selectFriend(friend: any) {
+  try {
+    const { data } = await chatApi.createPrivateConversation(friend.friend_user_id)
+    router.push(`/chat/${data.id}`)
+  } catch { message.error('创建会话失败') }
+}
+</script>
+
+<style scoped>
+.contacts-sidebar {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+}
+.panel-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 16px;
+  border-bottom: 1px solid var(--color-border);
+}
+.panel-title { margin: 0; font-size: 16px; font-weight: 600; }
+.search-bar { padding: 8px 12px; }
+.request-banner {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  padding: 10px 16px;
+  cursor: pointer;
+  background: var(--color-primary-lightest);
+  color: var(--color-primary);
+  font-size: 13px;
+  font-weight: 500;
+}
+.request-text { flex: 1; }
+.friend-list { flex: 1; overflow-y: auto; }
+.friend-item {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 10px 16px;
+  cursor: pointer;
+  transition: background 0.15s;
+}
+.friend-item:hover { background: var(--color-primary-lightest); }
+.friend-item.active { background: var(--color-primary-lightest); }
+.friend-info { flex: 1; min-width: 0; }
+.friend-name { font-size: 14px; font-weight: 500; }
+.friend-status { font-size: 16px; margin-left: 4px; }
+.friend-status.online { color: var(--color-success); }
+.friend-status.offline { color: var(--color-text-hint); }
+.empty { text-align: center; padding: 40px 20px; }
+</style>
diff --git a/frontend/src/views/contacts/SearchView.vue b/frontend/src/views/contacts/SearchView.vue
index 87c2504..607adae 100644
--- a/frontend/src/views/contacts/SearchView.vue
+++ b/frontend/src/views/contacts/SearchView.vue
@@ -1,18 +1,26 @@
 <template>
   <div class="search-page">
     <h2>搜索用户</h2>
-    <n-input v-model:value="keyword" placeholder="输入用户名或邮箱搜索..." size="large" @input="debouncedSearch" style="margin: 16px 0" />
+    <n-input v-model:value="keyword" placeholder="输入用户名、昵称或邮箱搜索..." size="large" @input="debouncedSearch" style="margin: 16px 0" />
     <div v-if="results.length > 0">
       <div v-for="user in results" :key="user.id" class="search-result">
-        <n-avatar :size="44" round :style="{ background: 'var(--color-primary)' }">{{ (user.username)[0] }}</n-avatar>
+        <n-avatar :size="48" round :style="{ background: 'var(--color-primary)' }">
+          {{ (user.nickname || user.username)[0] }}
+        </n-avatar>
         <div class="result-info">
-          <span class="result-name">{{ user.username }}</span>
+          <span class="result-name">{{ user.nickname || user.username }}</span>
+          <span v-if="user.nickname && user.nickname !== user.username" class="result-username">@{{ user.username }}</span>
           <span class="result-bio">{{ user.bio || '这个人很懒，什么都没写' }}</span>
         </div>
-        <n-button type="primary" size="small" @click="addFriend(user.id)">添加好友</n-button>
+        <div class="result-actions">
+          <n-button type="primary" size="small" @click="addDirect(user.id)">添加</n-button>
+          <n-button size="small" @click="sendRequest(user.id)">发请求</n-button>
+        </div>
       </div>
     </div>
-    <div v-else-if="searched" class="empty">没有找到匹配的用户</div>
+    <div v-else-if="searched" class="empty">
+      <p style="color: var(--color-text-hint)">没有找到匹配的用户</p>
+    </div>
   </div>
 </template>
 
@@ -20,6 +28,7 @@
 import { ref } from 'vue'
 import { useMessage } from 'naive-ui'
 import api from '@/api/client'
+import { friendsApi } from '@/api/friends'
 
 const message = useMessage()
 const keyword = ref('')
@@ -38,9 +47,18 @@ const debouncedSearch = () => {
   }, 400)
 }
 
-async function addFriend(userId: string) {
+async function addDirect(userId: string) {
   try {
-    await api.post('/friends/request', { to_user_id: userId })
+    await friendsApi.addDirect(userId)
+    message.success('已添加为好友')
+  } catch (e: any) {
+    message.error(e.response?.data?.detail || '添加失败')
+  }
+}
+
+async function sendRequest(userId: string) {
+  try {
+    await friendsApi.sendRequest(userId)
     message.success('好友请求已发送')
   } catch (e: any) {
     message.error(e.response?.data?.detail || '发送失败')
@@ -50,9 +68,16 @@ async function addFriend(userId: string) {
 
 <style scoped>
 .search-page { max-width: 600px; margin: 0 auto; padding: 24px; }
-.search-result { display: flex; align-items: center; gap: 12px; padding: 12px; background: var(--color-surface); border-radius: 10px; margin-bottom: 8px; }
-.result-info { flex: 1; }
-.result-name { font-weight: 500; display: block; }
-.result-bio { font-size: 13px; color: var(--color-text-hint); }
-.empty { text-align: center; padding: 40px; color: var(--color-text-hint); }
+.search-page h2 { margin-bottom: 8px; }
+.search-result {
+  display: flex; align-items: center; gap: 12px; padding: 14px;
+  background: var(--color-surface); border-radius: 10px; margin-bottom: 8px;
+  border: 1px solid var(--color-border);
+}
+.result-info { flex: 1; min-width: 0; }
+.result-name { font-weight: 500; display: block; font-size: 15px; }
+.result-username { font-size: 12px; color: var(--color-text-hint); margin-left: 4px; }
+.result-bio { font-size: 13px; color: var(--color-text-hint); display: block; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.result-actions { display: flex; gap: 6px; flex-shrink: 0; }
+.empty { text-align: center; padding: 40px; }
 </style>
diff --git a/frontend/src/views/moments/MomentCard.vue b/frontend/src/views/moments/MomentCard.vue
new file mode 100644
index 0000000..d143ba6
--- /dev/null
+++ b/frontend/src/views/moments/MomentCard.vue
@@ -0,0 +1,151 @@
+<template>
+  <div class="moment-card">
+    <!-- 头部：头像 + 用户名 + 时间 -->
+    <div class="moment-header">
+      <n-avatar :size="40" round :style="{ background: 'var(--color-primary)' }">
+        {{ (moment.nickname || moment.username || '?')[0] }}
+      </n-avatar>
+      <div class="header-info">
+        <span class="author-name">{{ moment.nickname || moment.username }}</span>
+        <span class="post-time">{{ formatTime(moment.created_at) }}</span>
+      </div>
+    </div>
+
+    <!-- 内容 -->
+    <div class="moment-content">{{ moment.content }}</div>
+
+    <!-- 图片 -->
+    <div v-if="moment.images && moment.images.length > 0" class="moment-images" :class="`grid-${Math.min(moment.images.length, 3)}`">
+      <div v-for="(img, i) in moment.images" :key="i" class="image-item">
+        <img :src="img" :alt="`图片${i + 1}`" />
+      </div>
+    </div>
+
+    <!-- 操作栏 -->
+    <div class="moment-actions">
+      <span class="action-btn" :class="{ liked: moment.is_liked }" @click="$emit('toggle-like', moment.id)">
+        {{ moment.is_liked ? '❤️' : '🤍' }} {{ moment.like_count || '' }}
+      </span>
+      <span class="action-btn" @click="showComments = !showComments">
+        💬 {{ moment.comment_count || '' }}
+      </span>
+    </div>
+
+    <!-- 评论区 -->
+    <div v-if="showComments" class="comments-section">
+      <div v-if="comments.length > 0" class="comments-list">
+        <div v-for="comment in comments" :key="comment.id" class="comment-item">
+          <span class="comment-author">{{ comment.nickname || comment.username }}</span>
+          <span v-if="comment.reply_to_username" class="comment-reply">
+            回复 <span class="comment-author">{{ comment.reply_to_username }}</span>
+          </span>
+          <span class="comment-text">：{{ comment.content }}</span>
+        </div>
+      </div>
+      <div class="comment-input">
+        <n-input v-model:value="commentText" placeholder="写评论..." size="small"
+          @keydown.enter.prevent="submitComment" />
+        <n-button size="tiny" type="primary" :disabled="!commentText.trim()" @click="submitComment">发送</n-button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, watch } from 'vue'
+import { momentsApi } from '@/api/moments'
+import dayjs from 'dayjs'
+import relativeTime from 'dayjs/plugin/relativeTime'
+import 'dayjs/locale/zh-cn'
+
+dayjs.extend(relativeTime)
+dayjs.locale('zh-cn')
+
+const props = defineProps<{ moment: any }>()
+const emit = defineEmits<{
+  'toggle-like': [momentId: string]
+  'comment': [momentId: string, content: string]
+}>()
+
+const showComments = ref(false)
+const comments = ref<any[]>([])
+const commentText = ref('')
+
+watch(showComments, async (val) => {
+  if (val && comments.value.length === 0) {
+    try {
+      const { data } = await momentsApi.getComments(props.moment.id)
+      comments.value = data
+    } catch {}
+  }
+})
+
+async function submitComment() {
+  if (!commentText.value.trim()) return
+  try {
+    const { data } = await momentsApi.addComment(props.moment.id, commentText.value.trim())
+    comments.value.push(data)
+    emit('comment', props.moment.id, commentText.value.trim())
+    commentText.value = ''
+  } catch {}
+}
+
+function formatTime(time: string) {
+  const d = dayjs(time)
+  const now = dayjs()
+  const diffMin = now.diff(d, 'minute')
+  if (diffMin < 1) return '刚刚'
+  if (diffMin < 60) return `${diffMin}分钟前`
+  const diffHour = now.diff(d, 'hour')
+  if (diffHour < 24) return `${diffHour}小时前`
+  const diffDay = now.diff(d, 'day')
+  if (diffDay < 7) return `${diffDay}天前`
+  return d.format('MM/DD')
+}
+</script>
+
+<style scoped>
+.moment-card {
+  background: var(--color-surface); border-radius: 12px; padding: 16px;
+  border: 1px solid var(--color-border);
+}
+.moment-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
+.header-info { display: flex; flex-direction: column; }
+.author-name { font-weight: 600; font-size: 14px; }
+.post-time { font-size: 11px; color: var(--color-text-hint); }
+
+.moment-content {
+  font-size: 14px; line-height: 1.6; color: var(--color-text-primary);
+  margin-bottom: 10px; white-space: pre-wrap; word-break: break-word;
+}
+
+.moment-images { display: grid; gap: 6px; margin-bottom: 10px; border-radius: 8px; overflow: hidden; }
+.moment-images.grid-1 { grid-template-columns: 1fr; max-width: 280px; }
+.moment-images.grid-2 { grid-template-columns: 1fr 1fr; }
+.moment-images.grid-3 { grid-template-columns: 1fr 1fr 1fr; }
+.image-item { aspect-ratio: 1; overflow: hidden; border-radius: 6px; cursor: pointer; }
+.image-item img { width: 100%; height: 100%; object-fit: cover; }
+
+.moment-actions {
+  display: flex; gap: 16px; padding-top: 8px;
+  border-top: 1px solid var(--color-border);
+}
+.action-btn {
+  font-size: 13px; cursor: pointer; color: var(--color-text-secondary);
+  display: flex; align-items: center; gap: 3px; transition: color 0.2s;
+}
+.action-btn:hover { color: var(--color-primary); }
+.action-btn.liked { color: #E53935; }
+
+.comments-section { margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--color-border); }
+.comments-list { margin-bottom: 8px; }
+.comment-item {
+  font-size: 13px; padding: 4px 0; line-height: 1.5;
+  color: var(--color-text-primary);
+}
+.comment-author { color: var(--color-primary); font-weight: 500; cursor: pointer; }
+.comment-reply { color: var(--color-text-hint); }
+.comment-text { color: var(--color-text-primary); }
+
+.comment-input { display: flex; gap: 6px; margin-top: 6px; }
+</style>
diff --git a/frontend/src/views/moments/MomentsFeedView.vue b/frontend/src/views/moments/MomentsFeedView.vue
new file mode 100644
index 0000000..d5d0c15
--- /dev/null
+++ b/frontend/src/views/moments/MomentsFeedView.vue
@@ -0,0 +1,168 @@
+<template>
+  <div class="moments-feed">
+    <div class="panel-header">
+      <h3 class="panel-title">朋友圈</h3>
+    </div>
+    <div class="feed-content">
+      <!-- 发布入口 -->
+      <div class="compose-trigger" @click="showCompose = true">
+        <span class="compose-icon">✏️</span>
+        <span>发布新动态...</span>
+      </div>
+
+      <!-- 加载状态 -->
+      <div v-if="momentsStore.isLoading && momentsStore.feed.length === 0" class="loading">
+        加载中...
+      </div>
+
+      <!-- 空状态 -->
+      <div v-else-if="momentsStore.feed.length === 0" class="empty-moments">
+        <div style="font-size: 48px">🌿</div>
+        <p style="color: var(--color-text-secondary)">还没有动态</p>
+        <p style="font-size: 13px; color: var(--color-text-hint)">发布第一条动态吧</p>
+      </div>
+
+      <!-- 动态列表 -->
+      <div v-else class="moment-list">
+        <MomentCard
+          v-for="moment in momentsStore.feed"
+          :key="moment.id"
+          :moment="moment"
+          @toggle-like="handleToggleLike"
+          @comment="handleComment"
+        />
+      </div>
+
+      <!-- 加载更多 -->
+      <div v-if="momentsStore.hasMore && momentsStore.feed.length > 0" class="load-more">
+        <n-button text size="small" @click="momentsStore.fetchFeed()">加载更多</n-button>
+      </div>
+    </div>
+
+    <!-- 发布弹窗 -->
+    <div v-if="showCompose" class="modal-overlay" @click.self="showCompose = false">
+      <div class="compose-modal">
+        <div class="modal-header">
+          <h3>发布动态</h3>
+          <span class="close-btn" @click="showCompose = false">✕</span>
+        </div>
+        <div class="compose-body">
+          <n-input v-model:value="composeText" type="textarea" :rows="4"
+            placeholder="分享你的想法..." maxlength="1000" show-count />
+          <div class="compose-options">
+            <div class="visibility-select">
+              <span class="option-label">可见范围：</span>
+              <n-button-group size="tiny">
+                <n-button :type="composeVisibility === 'friends' ? 'primary' : 'default'" @click="composeVisibility = 'friends'">好友</n-button>
+                <n-button :type="composeVisibility === 'public' ? 'primary' : 'default'" @click="composeVisibility = 'public'">公开</n-button>
+                <n-button :type="composeVisibility === 'private' ? 'primary' : 'default'" @click="composeVisibility = 'private'">仅自己</n-button>
+              </n-button-group>
+            </div>
+          </div>
+        </div>
+        <div class="compose-footer">
+          <n-button @click="showCompose = false">取消</n-button>
+          <n-button type="primary" :loading="publishing" :disabled="!composeText.trim()" @click="publishMoment">发布</n-button>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { useMomentsStore } from '@/stores/moments'
+import { useMessage } from 'naive-ui'
+import MomentCard from './MomentCard.vue'
+
+const momentsStore = useMomentsStore()
+const message = useMessage()
+
+const showCompose = ref(false)
+const composeText = ref('')
+const composeVisibility = ref('friends')
+const publishing = ref(false)
+
+onMounted(() => {
+  momentsStore.fetchFeed(true)
+})
+
+async function publishMoment() {
+  if (!composeText.value.trim()) return
+  publishing.value = true
+  try {
+    await momentsStore.createMoment(composeText.value.trim(), undefined, composeVisibility.value)
+    message.success('动态发布成功')
+    composeText.value = ''
+    showCompose.value = false
+  } catch {
+    message.error('发布失败')
+  } finally {
+    publishing.value = false
+  }
+}
+
+async function handleToggleLike(momentId: string) {
+  try {
+    await momentsStore.toggleLike(momentId)
+  } catch {
+    message.error('操作失败')
+  }
+}
+
+async function handleComment(momentId: string, content: string) {
+  try {
+    await momentsStore.addComment(momentId, content)
+    message.success('评论成功')
+  } catch {
+    message.error('评论失败')
+  }
+}
+</script>
+
+<style scoped>
+.moments-feed { display: flex; flex-direction: column; height: 100%; }
+.panel-header { padding: 16px; border-bottom: 1px solid var(--color-border); }
+.panel-title { margin: 0; font-size: 16px; font-weight: 600; }
+.feed-content { flex: 1; overflow-y: auto; padding: 12px; }
+
+.compose-trigger {
+  display: flex; align-items: center; gap: 8px; padding: 12px 16px;
+  background: var(--color-surface); border-radius: 10px;
+  border: 1px dashed var(--color-border); cursor: pointer;
+  color: var(--color-text-secondary); font-size: 14px; transition: all 0.2s; margin-bottom: 16px;
+}
+.compose-trigger:hover { border-color: var(--color-primary-lighter); color: var(--color-primary); background: var(--color-primary-lightest); }
+.compose-icon { font-size: 18px; }
+
+.loading { text-align: center; padding: 40px; color: var(--color-text-hint); }
+.empty-moments { text-align: center; padding: 60px 20px; }
+
+.moment-list { display: flex; flex-direction: column; gap: 12px; }
+.load-more { text-align: center; padding: 12px; }
+
+/* 发布弹窗 */
+.modal-overlay {
+  position: fixed; inset: 0; background: rgba(0,0,0,0.4);
+  display: flex; align-items: center; justify-content: center; z-index: 1000;
+}
+.compose-modal {
+  width: 500px; background: var(--color-surface); border-radius: 16px;
+  box-shadow: 0 12px 40px rgba(0,0,0,0.15);
+}
+.modal-header {
+  display: flex; justify-content: space-between; align-items: center;
+  padding: 20px 24px 16px; border-bottom: 1px solid var(--color-border);
+}
+.modal-header h3 { margin: 0; font-size: 18px; }
+.close-btn { cursor: pointer; font-size: 18px; color: var(--color-text-hint); padding: 4px; }
+.close-btn:hover { color: var(--color-text-primary); }
+.compose-body { padding: 16px 24px; }
+.compose-options { margin-top: 12px; }
+.visibility-select { display: flex; align-items: center; gap: 8px; }
+.option-label { font-size: 13px; color: var(--color-text-secondary); }
+.compose-footer {
+  display: flex; justify-content: flex-end; gap: 8px;
+  padding: 16px 24px; border-top: 1px solid var(--color-border);
+}
+</style>
diff --git a/frontend/src/views/settings/AboutView.vue b/frontend/src/views/settings/AboutView.vue
new file mode 100644
index 0000000..3d97cc3
--- /dev/null
+++ b/frontend/src/views/settings/AboutView.vue
@@ -0,0 +1,70 @@
+<template>
+  <div class="settings-page">
+    <div class="page-header">
+      <h2>关于青叶</h2>
+    </div>
+    <div class="settings-content">
+      <div class="about-card">
+        <div class="about-logo">🌿</div>
+        <h3 class="about-name">青叶 QingYe</h3>
+        <p class="about-version">版本 0.1.0</p>
+        <p class="about-desc">清新社交，畅快聊天</p>
+      </div>
+      <div class="card">
+        <div class="info-item">
+          <span class="info-label">技术栈</span>
+          <span class="info-value">Vue 3 + FastAPI + PostgreSQL</span>
+        </div>
+        <div class="info-item">
+          <span class="info-label">部署方式</span>
+          <span class="info-value">Docker Compose</span>
+        </div>
+        <div class="info-item">
+          <span class="info-label">开源协议</span>
+          <span class="info-value">MIT License</span>
+        </div>
+      </div>
+      <n-button v-if="auth.user?.is_admin" block @click="$router.push('/admin/dashboard')">
+        进入管理后台
+      </n-button>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { useAuthStore } from '@/stores/auth'
+
+const auth = useAuthStore()
+</script>
+
+<style scoped>
+.settings-page { padding: 24px; max-width: 600px; }
+.page-header { margin-bottom: 24px; }
+.page-header h2 { margin: 0; font-size: 20px; color: var(--color-primary-dark); }
+.settings-content { display: flex; flex-direction: column; gap: 16px; }
+.about-card {
+  text-align: center;
+  padding: 32px 20px;
+  background: var(--color-surface);
+  border-radius: 12px;
+  border: 1px solid var(--color-border);
+}
+.about-logo { font-size: 56px; margin-bottom: 8px; }
+.about-name { margin: 0; font-size: 22px; font-weight: 700; color: var(--color-primary-dark); }
+.about-version { font-size: 13px; color: var(--color-text-hint); margin-top: 4px; }
+.about-desc { font-size: 14px; color: var(--color-text-secondary); margin-top: 8px; }
+.card {
+  background: var(--color-surface);
+  border-radius: 12px;
+  padding: 4px 20px;
+  border: 1px solid var(--color-border);
+}
+.info-item {
+  display: flex; justify-content: space-between; align-items: center;
+  padding: 12px 0;
+  border-bottom: 1px solid var(--color-border);
+}
+.info-item:last-child { border-bottom: none; }
+.info-label { font-size: 14px; color: var(--color-text-secondary); }
+.info-value { font-size: 14px; color: var(--color-text-primary); }
+</style>
diff --git a/frontend/src/views/settings/AccountSettingsView.vue b/frontend/src/views/settings/AccountSettingsView.vue
new file mode 100644
index 0000000..09e20ef
--- /dev/null
+++ b/frontend/src/views/settings/AccountSettingsView.vue
@@ -0,0 +1,150 @@
+<template>
+  <div class="settings-page">
+    <div class="page-header">
+      <h2>账号安全</h2>
+    </div>
+    <div class="settings-content">
+      <!-- 修改密码 -->
+      <div class="card">
+        <h3 class="card-title">修改密码</h3>
+        <div class="form-group">
+          <label>当前密码</label>
+          <n-input v-model:value="pwdForm.old_password" type="password" show-password-on="click" placeholder="输入当前密码" />
+        </div>
+        <div class="form-group">
+          <label>新密码</label>
+          <n-input v-model:value="pwdForm.new_password" type="password" show-password-on="click" placeholder="至少6位" />
+        </div>
+        <div class="form-group">
+          <label>确认新密码</label>
+          <n-input v-model:value="pwdForm.confirm" type="password" show-password-on="click" placeholder="再次输入新密码" />
+        </div>
+        <n-button type="primary" :loading="changingPwd" @click="changePassword">修改密码</n-button>
+      </div>
+
+      <!-- 绑定邮箱 -->
+      <div class="card">
+        <h3 class="card-title">绑定邮箱</h3>
+        <div class="current-email">
+          <span class="label">当前邮箱</span>
+          <span class="value">{{ auth.user?.email || '未绑定' }}</span>
+        </div>
+        <div class="form-group">
+          <label>新邮箱</label>
+          <n-input v-model:value="emailForm.new_email" placeholder="输入新的邮箱地址" />
+        </div>
+        <div class="form-group">
+          <label>确认密码</label>
+          <n-input v-model:value="emailForm.password" type="password" show-password-on="click" placeholder="输入当前密码以确认" />
+        </div>
+        <n-button type="primary" :loading="changingEmail" @click="changeEmail">更换邮箱</n-button>
+      </div>
+
+      <!-- 退出登录 -->
+      <div class="card">
+        <h3 class="card-title">账号操作</h3>
+        <n-button type="error" ghost block @click="handleLogout">退出登录</n-button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { reactive, ref } from 'vue'
+import { useRouter } from 'vue-router'
+import { useAuthStore } from '@/stores/auth'
+import { useMessage } from 'naive-ui'
+import api from '@/api/client'
+
+const router = useRouter()
+const auth = useAuthStore()
+const message = useMessage()
+
+const changingPwd = ref(false)
+const changingEmail = ref(false)
+
+const pwdForm = reactive({ old_password: '', new_password: '', confirm: '' })
+const emailForm = reactive({ new_email: '', password: '' })
+
+async function changePassword() {
+  if (!pwdForm.old_password || !pwdForm.new_password) {
+    message.warning('请填写完整')
+    return
+  }
+  if (pwdForm.new_password.length < 6) {
+    message.warning('新密码至少6位')
+    return
+  }
+  if (pwdForm.new_password !== pwdForm.confirm) {
+    message.warning('两次输入的密码不一致')
+    return
+  }
+  changingPwd.value = true
+  try {
+    await api.put('/users/me/password', {
+      old_password: pwdForm.old_password,
+      new_password: pwdForm.new_password,
+    })
+    message.success('密码修改成功，请重新登录')
+    auth.logout()
+    router.push('/login')
+  } catch (e: any) {
+    message.error(e.response?.data?.detail || '密码修改失败')
+  } finally {
+    changingPwd.value = false
+  }
+}
+
+async function changeEmail() {
+  if (!emailForm.new_email || !emailForm.password) {
+    message.warning('请填写完整')
+    return
+  }
+  changingEmail.value = true
+  try {
+    await api.put('/users/me/email', {
+      email: emailForm.new_email,
+      password: emailForm.password,
+    })
+    await auth.fetchProfile()
+    message.success('邮箱已更新')
+    emailForm.new_email = ''
+    emailForm.password = ''
+  } catch (e: any) {
+    message.error(e.response?.data?.detail || '邮箱更换失败')
+  } finally {
+    changingEmail.value = false
+  }
+}
+
+function handleLogout() {
+  auth.logout()
+  router.push('/login')
+}
+</script>
+
+<style scoped>
+.settings-page { padding: 24px; max-width: 600px; }
+.page-header { margin-bottom: 24px; }
+.page-header h2 { margin: 0; font-size: 20px; color: var(--color-primary-dark); }
+.settings-content { display: flex; flex-direction: column; gap: 24px; }
+.card {
+  background: var(--color-surface);
+  border-radius: 12px;
+  padding: 20px;
+  border: 1px solid var(--color-border);
+}
+.card-title { margin: 0 0 16px; font-size: 16px; font-weight: 600; }
+.form-group { margin-bottom: 12px; }
+.form-group label {
+  display: block; font-size: 13px; color: var(--color-text-secondary);
+  margin-bottom: 4px;
+}
+.current-email {
+  display: flex; align-items: center; gap: 8px;
+  padding: 10px 0; margin-bottom: 12px;
+  border-bottom: 1px solid var(--color-border);
+}
+.current-email .label { font-size: 13px; color: var(--color-text-secondary); }
+.current-email .value { font-size: 14px; font-weight: 500; }
+</style>
diff --git a/frontend/src/views/settings/NotificationSettingsView.vue b/frontend/src/views/settings/NotificationSettingsView.vue
new file mode 100644
index 0000000..af07403
--- /dev/null
+++ b/frontend/src/views/settings/NotificationSettingsView.vue
@@ -0,0 +1,85 @@
+<template>
+  <div class="settings-page">
+    <div class="page-header">
+      <h2>通知设置</h2>
+    </div>
+    <div class="settings-content">
+      <div class="card">
+        <div class="toggle-item">
+          <div class="toggle-info">
+            <span class="toggle-label">新消息通知</span>
+            <span class="toggle-desc">收到新消息时显示通知</span>
+          </div>
+          <n-switch v-model:value="settings.messageNotif" @update:value="save" />
+        </div>
+        <div class="toggle-item">
+          <div class="toggle-info">
+            <span class="toggle-label">好友请求通知</span>
+            <span class="toggle-desc">收到好友请求时显示通知</span>
+          </div>
+          <n-switch v-model:value="settings.friendNotif" @update:value="save" />
+        </div>
+        <div class="toggle-item">
+          <div class="toggle-info">
+            <span class="toggle-label">朋友圈动态通知</span>
+            <span class="toggle-desc">好友发布新动态时通知</span>
+          </div>
+          <n-switch v-model:value="settings.momentNotif" @update:value="save" />
+        </div>
+        <div class="toggle-item">
+          <div class="toggle-info">
+            <span class="toggle-label">消息提示音</span>
+            <span class="toggle-desc">收到消息时播放提示音</span>
+          </div>
+          <n-switch v-model:value="settings.sound" @update:value="save" />
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { reactive, onMounted } from 'vue'
+import { useMessage } from 'naive-ui'
+
+const message = useMessage()
+
+const settings = reactive({
+  messageNotif: true,
+  friendNotif: true,
+  momentNotif: true,
+  sound: true,
+})
+
+onMounted(() => {
+  const saved = localStorage.getItem('notification_settings')
+  if (saved) Object.assign(settings, JSON.parse(saved))
+})
+
+function save() {
+  localStorage.setItem('notification_settings', JSON.stringify(settings))
+  message.success('设置已保存')
+}
+</script>
+
+<style scoped>
+.settings-page { padding: 24px; max-width: 600px; }
+.page-header { margin-bottom: 24px; }
+.page-header h2 { margin: 0; font-size: 20px; color: var(--color-primary-dark); }
+.settings-content { display: flex; flex-direction: column; gap: 16px; }
+.card {
+  background: var(--color-surface);
+  border-radius: 12px;
+  padding: 4px 20px;
+  border: 1px solid var(--color-border);
+}
+.toggle-item {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 14px 0;
+  border-bottom: 1px solid var(--color-border);
+}
+.toggle-item:last-child { border-bottom: none; }
+.toggle-info { display: flex; flex-direction: column; gap: 2px; }
+.toggle-label { font-size: 14px; font-weight: 500; }
+.toggle-desc { font-size: 12px; color: var(--color-text-hint); }
+</style>
diff --git a/frontend/src/views/settings/ProfileSettingsView.vue b/frontend/src/views/settings/ProfileSettingsView.vue
new file mode 100644
index 0000000..431435c
--- /dev/null
+++ b/frontend/src/views/settings/ProfileSettingsView.vue
@@ -0,0 +1,118 @@
+<template>
+  <div class="settings-page">
+    <div class="page-header">
+      <h2>个人资料</h2>
+    </div>
+    <div class="settings-content">
+      <!-- 头像 -->
+      <div class="avatar-section">
+        <n-avatar v-if="auth.user?.avatar_url" :src="auth.user.avatar_url" :size="80" round />
+        <n-avatar v-else :size="80" round style="background: var(--color-primary); font-size: 32px">
+          {{ displayName.charAt(0).toUpperCase() }}
+        </n-avatar>
+        <n-button size="small" @click="triggerUpload" style="margin-top: 8px">更换头像</n-button>
+        <input ref="fileInput" type="file" accept="image/*" style="display: none" @change="handleAvatarUpload" />
+      </div>
+      <!-- 资料表单 -->
+      <div class="form-section">
+        <div class="form-item">
+          <label>用户名</label>
+          <span class="form-value">{{ auth.user?.username }}</span>
+          <span class="form-hint">（登录名，不可修改）</span>
+        </div>
+        <div class="form-item">
+          <label>昵称</label>
+          <n-input v-model:value="form.nickname" placeholder="设置你的显示名称" size="small" style="flex: 1" />
+        </div>
+        <div class="form-item">
+          <label>邮箱</label>
+          <span class="form-value">{{ auth.user?.email }}</span>
+          <n-button text size="small" type="primary" @click="$router.push('/settings/account')">修改</n-button>
+        </div>
+        <div class="form-item">
+          <label>个性签名</label>
+          <n-input v-model:value="form.bio" type="textarea" :rows="2" placeholder="介绍一下自己..." size="small" style="flex: 1" />
+        </div>
+        <n-button type="primary" :loading="saving" @click="saveProfile">保存修改</n-button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, reactive, computed, onMounted } from 'vue'
+import { useAuthStore } from '@/stores/auth'
+import { useMessage } from 'naive-ui'
+import api from '@/api/client'
+
+const auth = useAuthStore()
+const message = useMessage()
+const saving = ref(false)
+const fileInput = ref<HTMLInputElement>()
+
+const displayName = computed(() => auth.user?.nickname || auth.user?.username || '?')
+
+const form = reactive({
+  nickname: auth.user?.nickname || '',
+  bio: auth.user?.bio || '',
+})
+
+onMounted(() => {
+  form.nickname = auth.user?.nickname || ''
+  form.bio = auth.user?.bio || ''
+})
+
+function triggerUpload() {
+  fileInput.value?.click()
+}
+
+async function handleAvatarUpload(event: Event) {
+  const target = event.target as HTMLInputElement
+  const file = target.files?.[0]
+  if (!file) return
+  const formData = new FormData()
+  formData.append('file', file)
+  try {
+    const { data } = await api.post('/uploads/avatar', formData, {
+      headers: { 'Content-Type': 'multipart/form-data' },
+    })
+    await api.put('/users/me', { avatar_url: data.url })
+    await auth.fetchProfile()
+    message.success('头像已更新')
+  } catch {
+    message.error('头像上传失败')
+  }
+}
+
+async function saveProfile() {
+  saving.value = true
+  try {
+    await api.put('/users/me', { nickname: form.nickname, bio: form.bio })
+    await auth.fetchProfile()
+    message.success('资料已保存')
+  } catch {
+    message.error('保存失败')
+  } finally {
+    saving.value = false
+  }
+}
+</script>
+
+<style scoped>
+.settings-page { padding: 24px; max-width: 600px; }
+.page-header { margin-bottom: 24px; }
+.page-header h2 { margin: 0; font-size: 20px; color: var(--color-primary-dark); }
+.settings-content { display: flex; flex-direction: column; gap: 24px; }
+.avatar-section { text-align: center; padding: 16px; }
+.form-section { display: flex; flex-direction: column; gap: 16px; }
+.form-item {
+  display: flex; align-items: center; gap: 12px;
+  padding: 8px 0; border-bottom: 1px solid var(--color-border);
+}
+.form-item label {
+  width: 80px; font-size: 14px; color: var(--color-text-secondary);
+  flex-shrink: 0;
+}
+.form-value { font-size: 14px; color: var(--color-text-primary); }
+.form-hint { font-size: 12px; color: var(--color-text-hint); }
+</style>
diff --git a/frontend/src/views/settings/SettingsSidebar.vue b/frontend/src/views/settings/SettingsSidebar.vue
new file mode 100644
index 0000000..074f79d
--- /dev/null
+++ b/frontend/src/views/settings/SettingsSidebar.vue
@@ -0,0 +1,93 @@
+<template>
+  <div class="settings-sidebar">
+    <div class="panel-header">
+      <h3 class="panel-title">设置</h3>
+    </div>
+    <div class="menu-list">
+      <router-link to="/settings/profile" class="menu-item" active-class="active">
+        <span class="menu-icon">👤</span>
+        <span class="menu-label">个人资料</span>
+      </router-link>
+      <router-link to="/settings/account" class="menu-item" active-class="active">
+        <span class="menu-icon">🔒</span>
+        <span class="menu-label">账号安全</span>
+      </router-link>
+      <router-link to="/settings/notifications" class="menu-item" active-class="active">
+        <span class="menu-icon">🔔</span>
+        <span class="menu-label">通知设置</span>
+      </router-link>
+      <router-link to="/settings/about" class="menu-item" active-class="active">
+        <span class="menu-icon">ℹ️</span>
+        <span class="menu-label">关于青叶</span>
+      </router-link>
+    </div>
+    <div class="sidebar-bottom">
+      <div class="user-card" @click="$router.push('/settings/profile')">
+        <n-avatar v-if="auth.user?.avatar_url" :src="auth.user.avatar_url" :size="40" round />
+        <n-avatar v-else :size="40" round style="background: var(--color-primary)">
+          {{ displayName.charAt(0).toUpperCase() }}
+        </n-avatar>
+        <div class="user-meta">
+          <span class="user-name">{{ displayName }}</span>
+          <span class="user-id">@{{ auth.user?.username }}</span>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useAuthStore } from '@/stores/auth'
+
+const auth = useAuthStore()
+const displayName = computed(() => auth.user?.nickname || auth.user?.username || '?')
+</script>
+
+<style scoped>
+.settings-sidebar {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+}
+.panel-header {
+  padding: 16px;
+  border-bottom: 1px solid var(--color-border);
+}
+.panel-title { margin: 0; font-size: 16px; font-weight: 600; }
+.menu-list { flex: 1; padding: 8px 0; }
+.menu-item {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 12px 16px;
+  text-decoration: none;
+  color: var(--color-text-primary);
+  font-size: 14px;
+  transition: background 0.15s;
+}
+.menu-item:hover { background: var(--color-primary-lightest); }
+.menu-item.active {
+  background: var(--color-primary-lightest);
+  color: var(--color-primary);
+  font-weight: 500;
+}
+.menu-icon { font-size: 18px; }
+.sidebar-bottom {
+  padding: 12px;
+  border-top: 1px solid var(--color-border);
+}
+.user-card {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 8px;
+  border-radius: 8px;
+  cursor: pointer;
+  transition: background 0.15s;
+}
+.user-card:hover { background: var(--color-primary-lightest); }
+.user-meta { display: flex; flex-direction: column; }
+.user-name { font-weight: 500; font-size: 14px; }
+.user-id { font-size: 12px; color: var(--color-text-hint); }
+</style>
diff --git a/提示词.md b/提示词.md
index 8a3ebfb..8b60819 100644
--- a/提示词.md
+++ b/提示词.md
@@ -6,4 +6,10 @@
 
 前端的用户和管理员界面，都看不到登录界面。用户界面目前一片空白。请检查。此外，需要实现热挂载，即修改了前端或后端代码后，不需要重启docker（除非必要），刷新就能看到效果。
 
-这三个页面目前都变成一片空白了
\ No newline at end of file
+这三个页面目前都变成一片空白了
+
+功能太少，操作不方便，过于简洁，没有基础的功能，设置页面加入修改密码等，用户名和昵称可以分开，简化加好友功能，加入群聊，左边固定栏，选择功能，内容丰富一点，加入好友圈。
+
+账号绑定邮箱
+
+不要列表卡片瀑布流，功能丰富一点，不要太单调，界面也丰富一点
\ No newline at end of file