.guide-shell { position: relative; overflow: hidden; }
.guide-wrap { width: min(1060px, calc(100% - 40px)); margin: 0 auto; }
.guide-nav { display: flex; align-items: center; justify-content: space-between; min-height: 72px; border-bottom: 1px solid var(--line); }
.guide-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 600 16px/1 var(--serif); }
.guide-brand img { width: 36px; height: 36px; border-radius: 11px; }
.guide-nav-links { display: flex; align-items: center; gap: 16px; }
.guide-nav-links a { color: var(--muted); font-size: 13px; text-decoration: none; }
.guide-nav-links .guide-tool-link { min-height: 42px; display: inline-flex; align-items: center; padding: 0 15px; border-radius: 999px; color: #fff; background: var(--ink); }
.guide-breadcrumb { display: flex; flex-wrap: wrap; gap: 7px; padding: 24px 0 0; color: var(--muted); font-size: 12px; }
.guide-breadcrumb a { color: var(--cinnabar); text-decoration: none; }
.guide-hero { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 56px; align-items: end; padding: 58px 0 52px; border-bottom: 1px solid var(--line); }
.guide-kicker { color: var(--cinnabar); font-size: 12px; font-weight: 700; letter-spacing: .15em; }
.guide-hero h1 { max-width: 820px; margin: 15px 0 19px; font: 600 clamp(38px, 5.5vw, 64px)/1.14 var(--serif); letter-spacing: -.035em; }
.guide-deck { max-width: 760px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.guide-meta { margin-top: 19px; color: rgba(33,27,22,.5); font-size: 12px; }
.guide-hero-mark { width: 180px; height: 180px; display: grid; place-items: center; justify-self: end; border: 1px solid var(--line); border-radius: 50%; color: var(--cinnabar); background: rgba(255,253,247,.62); box-shadow: inset 0 0 0 12px rgba(157,45,36,.025); font: 600 54px/1 var(--serif); }
.guide-layout { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 56px; padding: 58px 0 86px; }
.guide-article { min-width: 0; }
.guide-summary { display: grid; gap: 13px; padding: 24px 26px; margin-bottom: 42px; border-left: 4px solid var(--cinnabar); background: var(--card); box-shadow: 0 12px 32px rgba(75,51,31,.07); }
.guide-summary strong { font: 600 18px/1.4 var(--serif); }
.guide-summary ul { margin: 0; padding-left: 20px; color: var(--muted); line-height: 1.85; }
.guide-article h2 { margin: 48px 0 17px; padding-top: 4px; font: 600 30px/1.35 var(--serif); }
.guide-article h3 { margin: 28px 0 10px; font: 600 20px/1.45 var(--serif); }
.guide-article p, .guide-article li { color: #554b43; font-size: 16px; line-height: 1.95; }
.guide-article ul, .guide-article ol { padding-left: 24px; }
.guide-rule { display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.guide-rule:last-child { border-bottom: 0; }
.guide-rule-index { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid rgba(157,45,36,.3); color: var(--cinnabar); font: 600 14px/1 var(--serif); }
.guide-rule h3 { margin: 2px 0 6px; }
.guide-rule p { margin: 0; font-size: 14px; }
.guide-note { margin: 28px 0; padding: 20px 22px; border: 1px solid rgba(166,120,44,.3); background: rgba(166,120,44,.055); color: #65543d; line-height: 1.85; }
.guide-note strong { color: #7c591f; }
.guide-table-wrap { overflow-x: auto; margin: 24px 0; border: 1px solid var(--line); background: rgba(255,253,247,.7); }
.guide-table { width: 100%; min-width: 620px; border-collapse: collapse; font-size: 14px; }
.guide-table th, .guide-table td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; line-height: 1.65; }
.guide-table th { color: var(--ink); background: rgba(157,45,36,.04); font-family: var(--serif); }
.guide-table td { color: var(--muted); }
.guide-table tr:last-child td { border-bottom: 0; }
.guide-faq details { padding: 18px 0; border-bottom: 1px solid var(--line); }
.guide-faq summary { cursor: pointer; color: var(--ink); font: 600 17px/1.55 var(--serif); }
.guide-faq p { margin: 10px 0 0; font-size: 14px; }
.guide-aside { align-self: start; position: sticky; top: 20px; }
.guide-toc, .guide-cta { padding: 21px; border: 1px solid var(--line); background: rgba(255,253,247,.72); }
.guide-toc-title { margin-bottom: 11px; color: var(--ink); font: 600 16px/1.4 var(--serif); }
.guide-toc a { display: block; padding: 7px 0; color: var(--muted); font-size: 12px; line-height: 1.5; text-decoration: none; }
.guide-toc a:hover { color: var(--cinnabar); }
.guide-cta { margin-top: 14px; background: linear-gradient(145deg, rgba(157,45,36,.08), rgba(255,253,247,.82)); }
.guide-cta strong { display: block; font: 600 18px/1.45 var(--serif); }
.guide-cta p { color: var(--muted); font-size: 12px; line-height: 1.7; }
.guide-cta a { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; width: 100%; border-radius: 6px; color: #fff; background: var(--cinnabar); font-size: 13px; font-weight: 700; text-decoration: none; }
.guide-related { padding: 55px 0 72px; border-top: 1px solid var(--line); }
.guide-related h2 { margin: 0 0 22px; font: 600 30px/1.3 var(--serif); }
.guide-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.guide-related-card { display: block; padding: 22px; border: 1px solid var(--line); background: var(--card); text-decoration: none; transition: transform .22s ease, border-color .22s ease; }
.guide-related-card:hover { transform: translateY(-2px); border-color: rgba(157,45,36,.4); }
.guide-related-card small { color: var(--cinnabar); }
.guide-related-card strong { display: block; margin-top: 10px; font: 600 18px/1.45 var(--serif); }
.guide-related-card span { display: block; margin-top: 8px; color: var(--muted); font-size: 12px; line-height: 1.65; }
.guide-footer { padding: 26px 0 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; line-height: 1.75; }
.guide-footer-row { display: flex; justify-content: space-between; gap: 18px; }
.guide-footer a { color: var(--muted); }
.guide-nav a:focus-visible, .guide-toc a:focus-visible, .guide-related-card:focus-visible, .guide-cta a:focus-visible { outline: 2px solid var(--cinnabar); outline-offset: 3px; }

@media (max-width: 860px) {
  .guide-hero { grid-template-columns: 1fr; gap: 28px; }
  .guide-hero-mark { justify-self: start; width: 110px; height: 110px; font-size: 38px; }
  .guide-layout { grid-template-columns: 1fr; }
  .guide-aside { position: static; order: -1; }
  .guide-toc { display: none; }
}
@media (max-width: 600px) {
  .guide-wrap { width: min(100% - 28px, 1060px); }
  .guide-nav { min-height: 64px; }
  .guide-brand span, .guide-nav-links > a:not(.guide-tool-link) { display: none; }
  .guide-hero { padding: 38px 0 40px; }
  .guide-hero h1 { font-size: 39px; }
  .guide-deck { font-size: 15px; }
  .guide-layout { padding: 36px 0 60px; gap: 25px; }
  .guide-summary { padding: 20px; }
  .guide-article h2 { font-size: 26px; }
  .guide-article p, .guide-article li { font-size: 15px; }
  .guide-related-grid { grid-template-columns: 1fr; }
  .guide-footer-row { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition-duration: .01ms !important; } }