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="loadFeed(0, N) → FeedItem N개", shape=box, style="rounded,filled"];
  n1 [label="Highlight 컬렉션 초기화 N회", shape=box, style="rounded,filled"];
  n2 [label="Highlight SELECT N회", shape=box, style="rounded,filled"];
  n0 -> n1 [label="컬렉션 접근", style=solid];
  n1 -> n2 [label="SELECT 실행", style=solid];
}