.guide-header .main-nav a[aria-current="page"] { color: var(--blue); }
.guide-hero { padding-block: 84px 70px; }
.guide-hero h1 { font-size: clamp(46px, 5.1vw, 76px); font-weight: 500; letter-spacing: -.055em; line-height: 1.12; max-width: 990px; }
.guide-intro { max-width: 690px; margin-top: 28px; font-size: 21px; line-height: 1.7; color: #46504a; text-wrap: pretty; }
.guide-start { display: inline-flex; align-items: center; gap: 28px; margin-top: 28px; padding-block: 10px; color: var(--blue); font-size: 17px; font-weight: 600; }
.guide-start span { font-size: 24px; }
.guide-scope { max-width: 710px; margin-top: 28px; color: var(--muted); font-size: 13px; line-height: 1.75; }
.guide-layout { display: grid; grid-template-columns: 222px minmax(0, 1fr); gap: 66px; align-items: start; padding-bottom: 90px; }
.guide-toc { position: sticky; top: 28px; padding-top: 24px; border-top: 1px solid var(--ink); }
.guide-toc nav > p { font-size: 12px; font-weight: 600; margin-bottom: 18px; color: var(--muted); }
.guide-toc ol { margin: 0; padding: 0; list-style: none; }
.guide-toc a { display: flex; gap: 14px; padding: 11px 0; font-size: 14px; line-height: 1.6; }
.guide-toc a span { font-size: 11px; padding-top: 3px; color: var(--muted); font-variant-numeric: tabular-nums; }
.guide-toc a:hover { color: var(--blue); }
.guide-articles { min-width: 0; }
.guide-section { padding: 30px 0 66px; border-top: 1px solid var(--line); scroll-margin-top: 28px; }
.guide-section + .guide-section { padding-top: 40px; }
.guide-section-header { position: relative; }
.guide-number { display: block; margin-bottom: 20px; font-size: 14px; color: var(--blue); font-variant-numeric: tabular-nums; }
.guide-section h2 { font-size: clamp(28px, 2.6vw, 38px); font-weight: 500; line-height: 1.28; letter-spacing: -.04em; text-wrap: pretty; }
.guide-section-intro { margin-top: 20px; max-width: 750px; color: #505952; font-size: 17px; line-height: 1.85; }
.guide-location { display: flex; flex-wrap: wrap; gap: 4px 18px; margin-top: 25px; padding-bottom: 22px; border-bottom: 1px solid var(--line); font-size: 13px; line-height: 1.8; }
.guide-location strong { font-weight: 600; }
.guide-location span { color: var(--muted); }
.guide-procedure { counter-reset: procedure; list-style: none; padding: 0; margin: 34px 0; }
.guide-procedure li { counter-increment: procedure; position: relative; padding-left: 38px; margin: 0 0 30px; }
.guide-procedure li::before { content: counter(procedure) "."; position: absolute; left: 0; top: 1px; font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.guide-procedure h3 { font-size: 17px; font-weight: 600; line-height: 1.55; letter-spacing: -.01em; }
.guide-procedure p { font-size: 16px; margin-top: 10px; line-height: 1.9; color: #46504a; max-width: 730px; }
.guide-checkpoint { padding: 23px 27px; background: var(--lime); border-radius: 2px; }
.guide-checkpoint h3 { font-size: 13px; font-weight: 650; margin-bottom: 8px; }
.guide-checkpoint p { font-size: 15px; line-height: 1.8; }
.guide-note { margin-top: 20px; font-size: 13px; line-height: 1.9; color: var(--muted); }
.guide-references { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 25px; }
.guide-references a { display: inline-flex; gap: 10px; align-items: center; padding-block: 5px; color: var(--blue); font-size: 13px; }
.guide-references a:hover, .guide-start:hover, .guide-next a:hover { text-decoration: underline; text-underline-offset: 5px; }
.guide-screen { margin: 35px 0; }
.guide-screen img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 4px; }
.guide-screen figcaption { margin-top: 12px; font-size: 12px; line-height: 1.8; color: var(--muted); }
.guide-screen figcaption a { color: var(--blue); text-decoration: underline; text-underline-offset: 4px; }
.guide-flow { margin: 35px 0; padding-block: 26px; border-block: 1px solid var(--line); }
.guide-flow figcaption { font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.guide-flow ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); list-style: none; padding: 0; margin: 0; gap: 36px; }
.guide-flow li { position: relative; align-content: center; min-height: 64px; padding: 14px; border: 1px solid var(--line); border-radius: 3px; font-size: 13px; text-align: center; line-height: 1.6; }
.guide-flow li:not(:last-child)::after { content: "→"; position: absolute; right: -29px; top: 50%; transform: translateY(-50%); color: var(--muted); }
.guide-flow p { margin-top: 16px; font-size: 12px; line-height: 1.8; color: var(--muted); }
.guide-troubleshooting { margin-top: 50px; }
.guide-troubleshooting > h3 { margin-bottom: 20px; font-size: 23px; font-weight: 500; letter-spacing: -.02em; }
.guide-troubleshooting details { border-top: 1px solid var(--line); }
.guide-troubleshooting details:last-child { border-bottom: 1px solid var(--line); }
.guide-troubleshooting summary { cursor: pointer; position: relative; padding: 22px 34px 22px 0; list-style: none; font-size: 15px; font-weight: 500; line-height: 1.7; }
.guide-troubleshooting summary::-webkit-details-marker { display: none; }
.guide-troubleshooting summary::after { content: "+"; position: absolute; right: 3px; top: 22px; font-size: 19px; font-weight: 400; }
.guide-troubleshooting details[open] summary::after { content: "−"; }
.guide-troubleshooting summary:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.guide-troubleshooting details p { padding: 0 30px 24px 0; font-size: 14px; line-height: 1.9; color: #46504a; }
.guide-next { padding-top: 38px; border-top: 1px solid var(--ink); }
.guide-next h2 { max-width: 680px; font-size: clamp(28px, 2.5vw, 38px); font-weight: 500; line-height: 1.35; letter-spacing: -.035em; }
.guide-next p { max-width: 660px; margin-top: 18px; font-size: 16px; line-height: 1.9; color: var(--muted); }
.guide-next a { display: inline-flex; gap: 25px; margin-top: 22px; padding-block: 9px; color: var(--blue); font-size: 16px; font-weight: 500; }
.guide-sources { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 46px; font-size: 12px; line-height: 1.8; color: var(--muted); }
.guide-sources span { width: 100%; }
.guide-sources a { text-decoration: underline; text-underline-offset: 4px; }
.guide-sources a:last-child { margin-left: auto; }
@media (max-width: 1100px) {
  .guide-layout { grid-template-columns: 185px minmax(0, 1fr); gap: 36px; }
}
@media (max-width: 820px) {
  .guide-layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .guide-toc { top: 0; z-index: 10; padding: 12px 0; background: var(--paper); border-bottom: 1px solid var(--line); }
  .guide-toc nav > p { margin-bottom: 7px; font-size: 10px; }
  .guide-toc ol { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
  .guide-toc a { display: block; padding: 6px 0; font-size: 11px; line-height: 1.5; }
  .guide-toc a span { display: block; padding-top: 0; margin-bottom: 4px; font-size: 10px; }
  .guide-section { scroll-margin-top: 135px; }
  .guide-section:first-child { border-top: 0; padding-top: 38px; }
  .guide-hero { padding-block: 60px 48px; }
}
@media (max-width: 700px) {
  .guide-hero h1 { font-size: clamp(37px, 7.3vw, 52px); line-height: 1.2; letter-spacing: -.055em; }
  .guide-intro { font-size: 17px; line-height: 1.85; margin-top: 22px; }
  .guide-start { font-size: 15px; margin-top: 20px; }
  .guide-scope { font-size: 12px; margin-top: 22px; }
  .guide-layout { padding-bottom: 58px; }
  .guide-section { padding-bottom: 42px; }
  .guide-section h2 { font-size: 28px; line-height: 1.4; }
  .guide-section-intro { font-size: 15px; line-height: 1.9; margin-top: 15px; }
  .guide-number { margin-bottom: 14px; }
  .guide-location { font-size: 12px; margin-top: 20px; padding-bottom: 18px; }
  .guide-location strong { width: 100%; }
  .guide-procedure { margin-top: 27px; }
  .guide-procedure li { padding-left: 27px; margin-bottom: 27px; }
  .guide-procedure h3 { font-size: 16px; }
  .guide-procedure p { font-size: 14px; line-height: 1.95; }
  .guide-checkpoint { padding: 20px; }
  .guide-checkpoint p { font-size: 14px; }
  .guide-note { font-size: 12px; }
  .guide-references { gap: 7px 18px; }
  .guide-flow ol { gap: 19px; }
  .guide-flow li { padding: 10px 6px; font-size: 11px; }
  .guide-flow li:not(:last-child)::after { right: -16px; }
  .guide-troubleshooting { margin-top: 32px; }
  .guide-troubleshooting > h3 { font-size: 21px; }
  .guide-troubleshooting summary { font-size: 14px; }
  .guide-sources a:last-child { margin-left: 0; }
}
@media (max-width: 359px) {
  .guide-header .developer-link > span { display: none; }
}