.diagram-library{width:min(1320px,94vw);margin:auto}
.diagram-intro{padding:110px 0 72px;border-top:0}
.diagram-intro h1{max-width:1000px}
.diagram-index{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:42px}
.diagram-index a{display:flex;flex-direction:column;gap:6px;padding:16px;border:1px solid var(--line);border-radius:14px;text-decoration:none;color:var(--accent);background:rgba(255,255,255,.02)}
.diagram-index a span{color:var(--muted);font-size:.88rem}
.diagram-card{padding:72px 0;border-top:1px solid rgba(255,255,255,.08)}
.diagram-card>h2{margin-bottom:10px}
.diagram-card>p{color:var(--muted);max-width:780px;margin-bottom:28px}
.diagram-meta{display:flex;justify-content:space-between;color:var(--accent);font-size:.72rem;font-weight:800;letter-spacing:.1em}
.diagram-canvas{border:1px solid var(--line);border-radius:20px;background:
radial-gradient(circle at 50% 45%,rgba(83,213,255,.055),transparent 42%),
linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,.008));
padding:20px;overflow:hidden}
.goa-diagram{display:block;width:100%;height:auto;min-height:360px}
.goa-diagram .node rect{fill:#0e1c28;stroke:#294557;stroke-width:2}
.goa-diagram .node.accent rect{fill:#102735;stroke:#53d5ff;filter:url(#softGlow)}
.goa-diagram .node-label{fill:#eaf3f8;font-size:21px;font-weight:700}
.goa-diagram .node-sub{fill:#91a7b6;font-size:14px}
.goa-diagram .edge{stroke:#4f778d;stroke-width:2.4;fill:none}
.goa-diagram .arrow-head{fill:#53d5ff}
.goa-diagram .edge-label{fill:#8affc1;font-size:15px;font-weight:700}
.goa-diagram .cycle-core{fill:#0c1a25;stroke:#53d5ff;stroke-width:3}
.goa-diagram .core-title{fill:#eaf3f8;font-size:30px;font-weight:800;letter-spacing:.12em}
.goa-diagram .core-sub{fill:#91a7b6;font-size:16px}
.goa-diagram .time-layer rect{fill:#0e1c28;stroke:#294557;stroke-width:2}
.goa-diagram .time-layer:nth-child(6) rect{stroke:#53d5ff}
.goa-diagram .time-label{fill:#53d5ff;font-size:18px;font-weight:800}
.goa-diagram .time-sub{fill:#c6d6df;font-size:16px}
.goa-diagram .diagram-note{fill:#b8cad5;font-size:19px}
.goa-diagram .reject-path{fill:none;stroke:#8affc1;stroke-width:2.4;stroke-dasharray:8 7}
.goa-diagram .growth-arc{fill:none;stroke:#53d5ff;stroke-width:4;opacity:.55}
@media(max-width:900px){
  .diagram-index{grid-template-columns:1fr 1fr}
  .diagram-canvas{padding:8px}
  .goa-diagram{min-height:260px}
}
@media(max-width:560px){
  .diagram-index{grid-template-columns:1fr}
  .diagram-library{width:min(96vw,1320px)}
  .diagram-card{padding:48px 0}
  .diagram-canvas{overflow-x:auto}
  .goa-diagram{width:900px;max-width:none}
}

.diagram-doc-link{display:inline-block;color:var(--accent);text-decoration:none;margin:-10px 0 20px;font-size:.9rem}