digraph techviz {
  graph [rankdir=LR, splines=ortho, nodesep=0.55, ranksep=0.85];
  node [fontname=Helvetica, fontsize=11, margin="0.18,0.12", style="rounded,filled", fillcolor=white, color="#2d4357", penwidth=1.5];
  edge [fontname=Helvetica, fontsize=10, color="#364b5f", penwidth=1.4, arrowsize=0.75];
  n0 [label="열린 질문 네 개", shape=box, style="rounded,filled"];
  n1 [label="Q1 · 저장소와 스키마", shape=box, style="rounded,filled"];
  n2 [label="Q2 · 회전 경쟁", shape=box, style="rounded,filled"];
  n3 [label="Q3 · 조회 키 분리", shape=box, style="rounded,filled"];
  n4 [label="Q4 · Edge 신뢰 경계", shape=box, style="rounded,filled"];
  n0 -> n1 [label="답", style=solid];
  n0 -> n2 [label="답", style=solid];
  n0 -> n3 [label="답", style=solid];
  n0 -> n4 [label="답", style=solid];
}