```mermaid
---
config:
  layout: dagre
---
flowchart LR
 subgraph Internet["☁️ 公网环境 (Internet)"]
    direction TB
        HostA["🖥️ 主机 A (Linux)<br>IP: 144.7.97.70"]
  end
 subgraph GostService["⚙️ Gost Service (gost.yaml)"]
    direction TB
        Listener1["Listen 内网:39000"]
        Listener2["Listen 内网:1999"]
        Listener3["Listen 公网:1998"]
  end
 subgraph Middle["🛡️ 中转跳板 (主机 B)"]
    direction TB
        HostB["🖥️ 主机 B (Windows Server)<br>公网: 144.7.88.50<br>内网: 192.168.10.1"]
        GostService
  end
 subgraph Intranet["🏠 局域网环境 (Intranet)"]
    direction TB
        HostC["💻 主机 C (Windows PC)<br>IP: 192.168.10.2"]
  end
    HostC -- "1. TCP 请求<br>目标: 192.168.10.1:39000" --> Listener1
    Listener1 -. "转发 (Forward)<br>目标: 144.7.97.70:39000" .-> HostA
    HostC -- "2. HTTP 请求<br>目标: 192.168.10.1:1999" --> Listener2
    Listener2 -. "转发 (Forward)<br>目标: 144.7.97.70:1999" .-> HostA
    HostA -- "3. HTTP 请求<br>目标: 144.7.88.50:1998" --> Listener3
    Listener3 -. "转发 (Forward)<br>目标: 192.168.10.2:1998" .-> HostC

     HostA:::linux
     Listener1:::gostBox
     Listener2:::gostBox
     Listener3:::gostBox
     HostB:::windows
     HostC:::windows
    classDef linux fill:#e1f5fe,stroke:#01579b,stroke-width:2px,color:#000
    classDef windows fill:#e8f5e9,stroke:#2e7d32,stroke-width:2px,color:#000
    classDef gostBox fill:#fff3e0,stroke:#ef6c00,stroke-width:2px,stroke-dasharray: 5 5,color:#000
    linkStyle 0 stroke:#1976D2,stroke-width:2px,fill:none
    linkStyle 1 stroke:#1976D2,stroke-width:2px,fill:none
    linkStyle 2 stroke:#1976D2,stroke-width:2px,fill:none
    linkStyle 3 stroke:#1976D2,stroke-width:2px,fill:none
    linkStyle 4 stroke:#D32F2F,stroke-width:2px,fill:none
    linkStyle 5 stroke:#D32F2F,stroke-width:2px,fill:none
```