.mac-guide { padding: 52px 0 80px; }
.mac-shell { width: min(880px, calc(100% - 48px)); margin: auto; }
.mac-intro { padding: 0 0 30px; }
.mac-back, .mac-step a { color: #00695c; text-decoration: underline; text-underline-offset: 4px; }
.mac-back { font-size: 14px; }
.mac-kicker { margin: 36px 0 12px; color: #00695c; font-size: 12px; letter-spacing: .12em; }
.mac-intro h1 { margin: 0 0 18px; }
.mac-intro > p:not(.mac-kicker) { max-width: 720px; color: #536764; }
.mac-toc { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.mac-toc a { padding: 10px 16px; border: 1px solid #c8d6c4; border-radius: 6px; color: #27543b; font-size: 14px; }
.mac-toc a:hover { background: #e8efe3; }
.mac-step { margin: 22px 0; padding: 30px 34px; border: 1px solid #d7e0d4; border-radius: 10px; background: #fff; scroll-margin-top: 100px; }
.mac-number { display: block; margin-bottom: 12px; color: #00695c; font-size: 13px; font-weight: 700; letter-spacing: .12em; }
.mac-step h2 { margin: 0 0 18px; font-size: 25px; }
.mac-step p, .mac-step li { font-size: 15px; line-height: 1.95; color: #40594e; overflow-wrap: anywhere; }
.mac-step ol { padding-left: 24px; }
.mac-step li { padding-left: 5px; margin: 12px 0; }
.mac-step strong { color: #193e35; }
.mac-step .mac-note { padding: 15px 18px; border-left: 3px solid #77976e; background: #eff4eb; font-size: 14px; }
.mac-step .mac-source { font-size: 13px; }
.mac-step code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }
.mac-step p code { padding: 2px 4px; border-radius: 3px; background: #edf2e9; }
.mac-step pre { max-width: 100%; overflow-x: auto; padding: 20px; border-radius: 8px; background: #193e35; color: #f3f8ec; line-height: 1.9; tab-size: 2; }
.mac-step pre code { font-size: 13px; white-space: pre; }
.mac-step kbd { padding: 2px 6px; border: 1px solid #c5d1c3; border-radius: 4px; font-size: 13px; }
.mac-step details { border-bottom: 1px solid #e0e7db; padding: 16px 0; }
.mac-step summary { cursor: pointer; color: #234e36; font-size: 15px; font-weight: 600; line-height: 1.7; }
.mac-guide a:focus-visible, .mac-guide summary:focus-visible, .mac-guide pre:focus-visible { outline: 3px solid #689461; outline-offset: 4px; }
@media (max-width: 600px) {
  .mac-guide { padding: 28px 0 45px; }
  .mac-shell { width: calc(100% - 32px); }
  .mac-step { padding: 24px 20px; }
  .mac-step h2 { font-size: 22px; }
  .mac-step pre { padding: 15px; }
  .mac-toc a { padding: 10px 12px; }
}