偶然遇見Mermaid這個線上畫流程圖的服務，小玩了一下。
flowchart TB
subgraph Broker_Section["券商端 (Securities)"]
FT["Firstrade"]
CS["Charles Schwab"]
IB["Interactive Brokers"]
end
subgraph Bank_Section["銀行 / Fintech 端 (Banking)"]
US_Bank["美國支票帳戶"]
WISE["WISE"]
Revolut["Revolut"]
end
FT <-- ACH 綁定 CS 支票帳戶 --> CS
CS <-- ACH 綁定(CS 支票帳戶/IB DD帳戶) --> IB
US_Bank <-- ACH 綁定 --> FT & CS & IB & WISE
WISE <-- ACH Plaid綁定 --> FT
WISE <-- ACH 綁定 --> CS
WISE <-- WISE帳戶綁定 --> IB
Revolut -- Direct Deposit(USD) / Wire Transfer(JPY) --> IB
Revolut -- Direct Deposit --> CS & WISE & US_Bank
IB -- Wire Transfer(USD) --> Revolut
FT:::broker
CS:::broker
IB:::broker
US_Bank:::bank
WISE:::bank
Revolut:::bank
classDef broker fill:#1a5276,color:#fff,stroke:#333,stroke-width:2px
classDef bank fill:#2874a6,color:#fff,stroke:#333,stroke-width:2px
classDef note fill:#fcf3cf,color:#333,stroke:#f1c40f
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