graph TB
    subgraph "客户端层"
        C1[Web客户端]
        C2[移动客户端]
        C3[PC客户端]
    end
    
    subgraph "网关层"
        GW1[Gateway-1<br/>负载均衡/路由]
        GW2[Gateway-2<br/>负载均衡/路由]
    end
    
    subgraph "业务服务层"
        LOGIN[Login Service<br/>认证/会话管理]
        LOBBY[Lobby Service<br/>大厅/匹配]
        GAME1[Game Service-1<br/>游戏逻辑]
        GAME2[Game Service-2<br/>游戏逻辑]
        FRIEND[Friend Service<br/>社交系统]
        CHAT[Chat Service<br/>聊天系统]
        MAIL[Mail Service<br/>邮件系统]
    end
    
    subgraph "管理服务层"
        CENTER[Center Service<br/>集群管理]
        GM[GM Service<br/>运营工具]
    end
    
    subgraph "基础设施层"
        REDIS[(Redis<br/>缓存)]
        MONGO[(MongoDB<br/>持久化)]
        NSQ[NSQ<br/>消息队列]
        ETCD[ETCD<br/>服务发现]
    end
    
    subgraph "监控层"
        PROM[Prometheus<br/>指标收集]
        GRAF[Grafana<br/>可视化]
        PPROF[pprof<br/>性能分析]
    end
    
    C1 --> GW1
    C2 --> GW2
    C3 --> GW1
    
    GW1 --> LOGIN
    GW1 --> LOBBY
    GW2 --> LOGIN
    GW2 --> LOBBY
    
    LOBBY --> GAME1
    LOBBY --> GAME2
    
    GAME1 --> FRIEND
    GAME1 --> CHAT
    GAME1 --> MAIL
    
    LOGIN --> REDIS
    GAME1 --> REDIS
    GAME1 --> MONGO
    
    CHAT --> NSQ
    MAIL --> NSQ
    
    CENTER --> ETCD
    GM --> CENTER
    
    PROM --> GW1
    PROM --> LOGIN
    PROM --> GAME1
    GRAF --> PROM
    PPROF --> GAME1