.lab-main{max-width:1250px;margin:auto;padding:28px clamp(16px,4vw,54px)}.lab-bar{display:flex;justify-content:space-between;align-items:center;gap:1rem;background:white;border-bottom:1px solid var(--line);padding:14px clamp(16px,4vw,54px)}.lab-bar strong{color:var(--ink)}.lab-main h1{margin:.3em 0}.lab-main h2{margin-top:.5em}.lab-main .actions,.lab-main .card{margin-block:12px}.scenario-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start}.scenario-grid pre{max-height:300px;overflow:auto}.lab-main details{margin:8px 0}.lab-main summary{cursor:pointer}.lab-main ol{padding-left:20px}.parallel-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:6px}.parallel-options label{display:flex;align-items:center;gap:8px}.parallel-options input{width:auto}.lab-main .card a{font-weight:650}.lab-main .error{color:var(--red)}@media(max-width:740px){.scenario-grid{grid-template-columns:1fr}.lab-bar{flex-wrap:wrap}}