flowchart TD
  classDef terminator fill:#4338ca,stroke:#312e81,stroke-width:2px,color:#fff,font-weight:700;
  classDef decision   fill:#fef3c7,stroke:#d97706,stroke-width:2.5px,color:#78350f,font-weight:700;
  classDef process    fill:#ffffff,stroke:#475569,stroke-width:1.5px,color:#0f172a;
  classDef processReq fill:#ffffff,stroke:#475569,stroke-width:1.5px,color:#0f172a,font-weight:600;
  classDef input      fill:#cffafe,stroke:#0891b2,stroke-width:1.8px,color:#164e63;
  classDef inputReq   fill:#cffafe,stroke:#0891b2,stroke-width:1.8px,color:#164e63,font-weight:600;
  classDef decisionReq fill:#fef3c7,stroke:#d97706,stroke-width:2.5px,color:#78350f,font-weight:700;
  classDef chOk      fill:#dcfce7,stroke:#16a34a,color:#14532d;
  classDef chWarn    fill:#fef3c7,stroke:#d97706,color:#78350f;
  classDef chRisk    fill:#fee2e2,stroke:#dc2626,color:#7f1d1d;
  linkStyle default stroke:#94a3b8,stroke-width:1.6px;

  START(["🟢 문진 시작: 하지정맥류 평가"]):::terminator
  RESULT(["🏁 결과 산출"]):::terminator

  S176["섹션 1: 증상<br/>(10)"]:::process
  START --> S176
  S177["섹션 2: 합병증 신호<br/>(3)"]:::process
  S176 --> S177
  S178["섹션 3: 위험요인<br/>(7)"]:::process
  S177 --> S178
  S311["섹션 4: 다리 증상 상세<br/>(7)"]:::process
  S178 --> S311
  S312["섹션 5: 위험요인<br/>(9)"]:::process
  S311 --> S312
  S313["섹션 6: 추가 합병증 신호<br/>(3)"]:::process
  S312 --> S313
  S313 --> RESULT