body { background: var(--paper-2); }
.cat { max-width: 800px; margin: 0 auto; padding: 40px 20px 80px; }
.cat__kicker { font-size: 13px; color: var(--ink-2); margin: 0 0 6px; }
.cat__title { font-family: var(--serif); font-weight: 800; font-size: 40px; margin: 0 0 12px; letter-spacing: -.02em; }
.cat__lead { max-width: 62ch; color: var(--ink-2); margin-bottom: 40px; }
.cat__item { margin-bottom: 48px; }
.cat__item h2 { font-family: var(--serif); font-weight: 800; font-size: 22px; margin: 0 0 14px; }
.cat__item iframe { width: 100%; border: 0; height: 520px; background: #fff; box-shadow: 0 1px 2px rgba(6,30,77,.08); }
pre { background: #fff; border: 1px solid var(--line); padding: 12px 14px; overflow-x: auto; font-size: 12.5px; line-height: 1.5; margin: 12px 0 0; }
code { font-family: ui-monospace, Menlo, monospace; }
.cat__item--note p { max-width: 62ch; color: var(--ink-2); }