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: 소화불량·위장 증상 문진"]):::terminator
  RESULT(["🏁 결과 산출"]):::terminator

  S129["섹션 1: 증상 양상<br/>(8)"]:::process
  START --> S129
  S130["섹션 2: 경고 증상<br/>(6)"]:::process
  S129 --> S130
  S131["섹션 3: 약물·생활<br/>(7)"]:::process
  S130 --> S131
  S268["섹션 4: 증상 상세<br/>(11)"]:::process
  S131 --> S268
  S269["섹션 5: 병력·식습관<br/>(9)"]:::process
  S268 --> S269
  S270["섹션 6: 추가 경고 증상<br/>(5)"]:::process
  S269 --> S270
  S439["섹션 7: 헬리코박터 (해당 시)<br/>(2)"]:::process
  S270 --> S439
  S439 --> RESULT