/* Keydance support guide — page-scoped utility layout. */
.support-guide-page {
  --guide-paper: #f1eee7;
  --guide-paper-deep: #e9e4da;
  --guide-ink: #262b34;
  --guide-muted: #626a77;
  --guide-line: rgba(43, 49, 59, .16);
  --guide-orange: #f36f3d;
  --guide-blue: #4e76df;
  background: var(--guide-paper);
  color: var(--guide-ink);
}

.support-guide-page .subpage-stage {
  min-height: auto;
  height: auto;
  aspect-ratio: auto;
  padding-bottom: 0;
}

.support-guide-page .guide-hero {
  min-height: min(820px, 100svh);
  background:
    radial-gradient(circle at 78% 34%, rgba(255, 255, 255, .72), transparent 36%),
    linear-gradient(145deg, rgba(241, 238, 231, .96), rgba(235, 229, 217, .82));
}

.support-guide-page .guide-hero-layout {
  position: relative;
  z-index: 2;
  grid-template-columns: minmax(0, 1.12fr) minmax(340px, .88fr);
  align-items: center;
  gap: clamp(64px, 8vw, 120px);
  min-height: calc(min(820px, 100svh) - 84px);
  padding: clamp(74px, 9vw, 118px) 0 clamp(78px, 9vw, 116px);
}

.support-guide-page .guide-hero-copy { max-width: 680px; }

.support-guide-page .guide-hero-copy h1 {
  max-width: 650px;
  margin-top: 14px;
  color: var(--guide-ink);
  font-size: clamp(58px, 7.2vw, 96px);
  line-height: .99;
  letter-spacing: -.072em;
}

.support-guide-page .guide-hero-lede {
  max-width: 610px;
  margin-top: 30px;
  color: var(--guide-muted);
  font-size: clamp(17px, 1.45vw, 20px);
  line-height: 1.65;
}

.support-guide-page .guide-hero-en {
  max-width: 610px;
  margin-top: 12px;
  color: rgba(69, 76, 88, .62) !important;
  font-size: 14px;
  line-height: 1.6;
}

.guide-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
  margin-top: 34px;
}

.guide-text-link,
.guide-explainer a,
.guide-topic-copy > a {
  color: var(--guide-ink);
  font-size: 13px;
  font-weight: 650;
  text-decoration: underline;
  text-decoration-color: rgba(243, 111, 61, .6);
  text-underline-offset: 5px;
}

.guide-text-link:hover,
.guide-explainer a:hover,
.guide-topic-copy > a:hover { color: var(--guide-orange); }

.guide-hero-aside { border-top: 1px solid var(--guide-ink); }
.guide-hero-aside > .section-label { padding: 20px 0 14px; }
.guide-hero-aside ol { margin: 0; padding: 0; list-style: none; }
.guide-hero-aside li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--guide-line);
}
.guide-hero-aside li > span { color: var(--guide-orange); font: 10px/1.5 var(--mono); }
.guide-hero-aside li strong { font-size: 15px; font-weight: 620; }
.guide-hero-aside li small { display: block; margin-top: 2px; color: var(--guide-muted); font-size: 11px; font-weight: 500; }

.guide-direct-contact {
  margin-top: 28px;
  padding: 23px 0 0;
  border-top: 1px solid var(--guide-ink);
}
.guide-direct-contact > small { color: var(--guide-muted); font: 9px/1.4 var(--mono); letter-spacing: .08em; }
.guide-direct-contact > a { display: block; margin-top: 8px; font-size: clamp(22px, 2.4vw, 32px); font-weight: 670; letter-spacing: -.035em; }
.guide-direct-contact > p { margin-top: 9px; color: var(--guide-muted); font-size: 12px; line-height: 1.55; }
.guide-direct-contact > p span { color: rgba(69, 76, 88, .62); }
.guide-direct-contact button {
  margin-top: 16px;
  padding: 0 0 4px;
  border: 0;
  border-bottom: 1px solid rgba(43, 49, 59, .34);
  background: transparent;
  color: var(--guide-ink);
  cursor: pointer;
  font-size: 11px;
}
.guide-direct-contact button:hover { border-color: var(--guide-orange); color: var(--guide-orange); }

.guide-section-nav {
  position: sticky;
  z-index: 20;
  top: 0;
  border-top: 1px solid var(--guide-line);
  border-bottom: 1px solid var(--guide-line);
  background: rgba(241, 238, 231, .94);
  box-shadow: 0 12px 30px rgba(44, 49, 57, .04);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.guide-section-nav > div { display: grid; grid-template-columns: repeat(6, 1fr); }
.guide-section-nav a {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 7px;
  align-items: center;
  min-height: 66px;
  padding: 10px 12px;
  border-left: 1px solid var(--guide-line);
  color: var(--guide-muted);
  transition: color .2s ease, background-color .2s ease;
}
.guide-section-nav a:last-child { border-right: 1px solid var(--guide-line); }
.guide-section-nav a > span { color: var(--guide-orange); font: 9px/1 var(--mono); }
.guide-section-nav a strong { font-size: 12px; font-weight: 620; line-height: 1.25; }
.guide-section-nav a small { display: block; margin-top: 2px; font-size: 8px; font-weight: 500; letter-spacing: .02em; }
.guide-section-nav a:hover,
.guide-section-nav a[aria-current="location"] { color: var(--guide-ink); background: rgba(255, 255, 255, .46); }
.guide-section-nav a[aria-current="location"] { box-shadow: inset 0 -2px var(--guide-orange); }

.guide-section {
  position: relative;
  scroll-margin-top: 65px;
  padding: clamp(92px, 10vw, 142px) 0;
  border-top: 1px solid var(--guide-line);
  background: var(--guide-paper);
}
.guide-section:nth-of-type(even) { background: rgba(255, 255, 255, .19); }
.guide-section-layout {
  display: grid;
  grid-template-columns: minmax(260px, .72fr) minmax(0, 1.28fr);
  gap: clamp(70px, 9vw, 128px);
  align-items: start;
}
.guide-section-heading { position: sticky; top: 104px; }
.guide-section-heading h2 {
  margin-top: 16px;
  color: var(--guide-ink);
  font-size: clamp(42px, 4.8vw, 66px);
  line-height: 1.04;
  letter-spacing: -.058em;
}
.guide-section-heading h2 small,
.guide-contact-heading h2 small {
  display: block;
  margin-top: 14px;
  color: var(--guide-muted);
  font-size: 13px;
  font-weight: 530;
  line-height: 1.35;
  letter-spacing: 0;
}
.guide-section-heading > p:not(.section-label) { margin-top: 24px; color: var(--guide-muted); font-size: 15px; }
.guide-section-heading > .english { margin-top: 10px !important; color: rgba(69, 76, 88, .62) !important; font-size: 13px !important; }

.guide-steps { margin: 0; padding: 0; border-top: 1px solid var(--guide-ink); list-style: none; }
.guide-steps li { display: grid; grid-template-columns: 44px 1fr; gap: 18px; padding: 32px 0; border-bottom: 1px solid var(--guide-line); }
.guide-step-number { color: var(--guide-orange); font: 10px/1.5 var(--mono); }
.guide-step-time { color: var(--guide-blue); font: 9px/1.3 var(--mono); letter-spacing: .08em; }
.guide-step-copy h3 { margin-top: 8px; color: var(--guide-ink); font-size: 23px; line-height: 1.25; letter-spacing: -.028em; }
.guide-step-copy > p:not(.guide-step-time) { margin-top: 12px; color: var(--guide-muted); font-size: 14px; }
.guide-step-copy .english { color: rgba(69, 76, 88, .63) !important; font-size: 13px !important; }

.guide-explainer { border-top: 1px solid var(--guide-ink); }
.guide-callout { display: grid; grid-template-columns: 46px 1fr; gap: 18px; padding: 34px 0; border-bottom: 1px solid var(--guide-line); }
.guide-callout > span { color: var(--guide-orange); font-size: 30px; line-height: 1; }
.guide-callout h3,
.guide-fact-pair h3,
.guide-secure-note h3,
.boundary-grid h3,
.ranking-boundary-note h3 { color: var(--guide-ink); font-size: 23px; line-height: 1.25; letter-spacing: -.03em; }
.guide-callout p,
.guide-fact-pair p,
.guide-secure-note p,
.boundary-grid p,
.ranking-boundary-note p { margin-top: 12px; color: var(--guide-muted); font-size: 14px; }
.guide-callout .english,
.guide-fact-pair .english,
.guide-secure-note .english,
.boundary-grid .english,
.ranking-boundary-note .english { color: rgba(69, 76, 88, .63) !important; font-size: 13px !important; }
.guide-callout code { color: var(--guide-ink); font-family: var(--mono); font-size: .9em; }
.guide-fact-pair { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--guide-line); }
.guide-fact-pair > div { padding: 32px 30px 34px 0; }
.guide-fact-pair > div + div { padding-left: 30px; border-left: 1px solid var(--guide-line); }
.guide-fact-label { margin: 0 0 12px !important; color: var(--guide-orange) !important; font: 9px/1.4 var(--mono) !important; letter-spacing: .08em; }
.guide-secure-note { padding: 34px 0 4px; }
.guide-secure-note > a { display: inline-block; margin-top: 22px; }

.boundary-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--guide-ink); border-bottom: 1px solid var(--guide-line); }
.boundary-grid > section { padding: 34px 34px 36px 0; }
.boundary-grid > section + section { padding-left: 34px; padding-right: 0; border-left: 1px solid var(--guide-line); }
.boundary-mark { margin: 0 0 13px !important; font: 9px/1.4 var(--mono) !important; letter-spacing: .08em; }
.boundary-mark-kept { color: var(--guide-blue) !important; }
.boundary-mark-never { color: var(--guide-orange) !important; }
.boundary-grid ul { margin: 22px 0 0; padding: 0; list-style: none; }
.boundary-grid li { position: relative; padding: 10px 0 10px 23px; border-top: 1px solid var(--guide-line); color: var(--guide-muted); font-size: 14px; }
.boundary-grid li::before { position: absolute; left: 0; top: 10px; color: var(--guide-orange); content: "—"; }
.ranking-boundary-note { display: grid; grid-template-columns: 150px 1fr; gap: 32px; margin-top: 42px; padding-top: 28px; border-top: 1px solid var(--guide-ink); }
.ranking-boundary-note > span { color: var(--guide-orange); font: 9px/1.5 var(--mono); letter-spacing: .08em; }

.guide-topic-list { border-top: 1px solid var(--guide-ink); }
.guide-topic-list article { display: grid; grid-template-columns: minmax(220px, .58fr) minmax(0, 1.42fr); gap: 54px; padding: 40px 0 46px; border-bottom: 1px solid var(--guide-line); }
.guide-topic-heading > span { color: var(--guide-orange); font: 9px/1.4 var(--mono); letter-spacing: .08em; }
.guide-topic-heading h3 { margin-top: 11px; color: var(--guide-ink); font-size: 25px; line-height: 1.2; letter-spacing: -.035em; }
.guide-topic-heading p { margin-top: 9px; color: rgba(69, 76, 88, .62); font-size: 12px; }
.guide-topic-copy ol { margin: 0; padding-left: 20px; color: var(--guide-muted); font-size: 14px; }
.guide-topic-copy li + li { margin-top: 13px; }
.guide-topic-copy strong { color: var(--guide-ink); }
.guide-topic-copy > .english { margin-top: 24px; color: rgba(69, 76, 88, .63) !important; font-size: 13px; }
.guide-topic-copy > a { display: inline-block; margin-top: 20px; }
.guide-disclosure { margin-top: 24px; border-top: 1px solid var(--guide-line); border-bottom: 1px solid var(--guide-line); }
.guide-disclosure summary { padding: 16px 0; cursor: pointer; color: var(--guide-ink); font-size: 13px; font-weight: 650; }
.guide-disclosure summary span { display: block; margin-top: 2px; color: var(--guide-muted); font-size: 11px; font-weight: 500; }
.guide-disclosure > div { padding: 0 0 18px; }
.guide-disclosure p { color: var(--guide-muted); font-size: 13px; }
.guide-disclosure .english { margin-top: 10px; color: rgba(69, 76, 88, .63) !important; }

.troubleshooting-list { border-top: 1px solid var(--guide-ink); }
.troubleshooting-list details { scroll-margin-top: 82px; border-bottom: 1px solid var(--guide-line); }
.troubleshooting-list summary { display: grid; grid-template-columns: 36px 1fr auto; gap: 14px; align-items: center; min-height: 82px; padding: 18px 0; cursor: pointer; list-style: none; }
.troubleshooting-list summary::-webkit-details-marker { display: none; }
.troubleshooting-list summary > span { color: var(--guide-orange); font: 9px/1 var(--mono); }
.troubleshooting-list summary strong { color: var(--guide-ink); font-size: 18px; font-weight: 650; line-height: 1.3; }
.troubleshooting-list summary small { display: block; margin-top: 4px; color: var(--guide-muted); font-size: 11px; font-weight: 500; }
.troubleshooting-list summary::after { content: "＋"; color: var(--guide-muted); font-size: 20px; font-weight: 350; }
.troubleshooting-list details[open] summary::after { content: "−"; }
.troubleshooting-answer { max-width: 680px; margin-left: 50px; padding: 0 0 30px; color: var(--guide-muted); }
.troubleshooting-answer ol { margin: 0; padding-left: 19px; font-size: 14px; }
.troubleshooting-answer li + li { margin-top: 9px; }
.troubleshooting-answer > p { font-size: 14px; }
.troubleshooting-answer .english { margin-top: 18px; color: rgba(69, 76, 88, .63) !important; font-size: 13px !important; }

.guide-contact { background: #1f2530; color: #fff; }
.guide-contact-layout { display: grid; grid-template-columns: minmax(280px, .82fr) minmax(0, 1.18fr); gap: clamp(70px, 9vw, 126px); align-items: start; }
.guide-contact-heading h2 { margin-top: 16px; color: #fff; font-size: clamp(46px, 5.3vw, 70px); line-height: 1.04; letter-spacing: -.06em; }
.guide-contact-heading h2 small { color: rgba(255, 255, 255, .53); }
.guide-contact-heading > p:not(.section-label) { margin-top: 24px; color: rgba(255, 255, 255, .68); }
.guide-contact-heading > .english { margin-top: 10px !important; color: rgba(255, 255, 255, .48) !important; font-size: 13px; }
.guide-contact-email { display: inline-block; margin-top: 30px; color: #fff; font-size: clamp(22px, 2.6vw, 34px); font-weight: 670; letter-spacing: -.035em; text-decoration: underline; text-decoration-color: var(--guide-orange); text-underline-offset: 7px; }
.guide-response-time { margin-top: 13px !important; color: rgba(255, 255, 255, .5) !important; font-size: 12px; }
.guide-mail-template { padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .4); }
.guide-mail-template .guide-fact-label { color: #ff946c !important; }
.guide-mail-template ol { margin: 22px 0 0; padding-left: 20px; color: rgba(255, 255, 255, .74); font-size: 14px; }
.guide-mail-template li + li { margin-top: 9px; }
.guide-mail-template > .english { margin-top: 24px; color: rgba(255, 255, 255, .5) !important; font-size: 13px; }
.guide-mail-warning { margin-top: 26px; padding: 18px 0; border-top: 1px solid rgba(255, 255, 255, .14); border-bottom: 1px solid rgba(255, 255, 255, .14); color: rgba(255, 255, 255, .72); font-size: 12px; }
.guide-mail-warning > span { display: block; margin-top: 7px; color: rgba(255, 255, 255, .48); }
.guide-mail-template .button { margin-top: 28px; }
.support-guide-page .guide-footer { border-top: 1px solid var(--guide-line); background: var(--guide-paper); }

@media (max-width: 1000px) {
  .support-guide-page .guide-hero-layout { grid-template-columns: minmax(0, 1fr) minmax(290px, .7fr); gap: 58px; }
  .guide-section-nav > div { grid-template-columns: repeat(3, 1fr); }
  .guide-section-nav a:nth-child(n + 4) { border-top: 1px solid var(--guide-line); }
  .guide-section-layout { gap: 64px; }
  .guide-topic-list article { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 820px) {
  .support-guide-page .guide-hero { min-height: auto; }
  .support-guide-page .guide-hero-layout { grid-template-columns: 1fr; min-height: auto; gap: 62px; padding: 76px 0 88px; }
  .guide-hero-aside { max-width: 680px; }
  .guide-section-nav { position: static; }
  .guide-section-layout,
  .guide-contact-layout { grid-template-columns: 1fr; gap: 54px; }
  .guide-section-heading { position: static; }
  .boundary-grid { grid-template-columns: 1fr; }
  .boundary-grid > section { padding: 34px 0; }
  .boundary-grid > section + section { padding-left: 0; border-top: 1px solid var(--guide-line); border-left: 0; }
}

@media (max-width: 620px) {
  .support-guide-page .site-header { padding-bottom: 14px; }
  .support-guide-page .site-nav { gap: 10px; overflow: visible; font-size: 11px; }
  .support-guide-page .guide-hero-layout { padding: 58px 0 72px; }
  .support-guide-page .guide-hero-copy h1 { font-size: clamp(50px, 15vw, 66px); }
  .support-guide-page .guide-hero-lede { font-size: 16px; }
  .guide-hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .guide-direct-contact > a { overflow-wrap: anywhere; font-size: 24px; }
  .guide-section-nav > div { grid-template-columns: 1fr 1fr; }
  .guide-section-nav a:nth-child(n + 3) { border-top: 1px solid var(--guide-line); }
  .guide-section-nav a { min-height: 62px; padding: 9px 8px; }
  .guide-section { scroll-margin-top: 0; padding: 82px 0; }
  .guide-section-heading h2 { font-size: 43px; }
  .guide-steps li { grid-template-columns: 31px 1fr; gap: 10px; padding: 27px 0; }
  .guide-step-copy h3 { font-size: 21px; }
  .guide-callout { grid-template-columns: 32px 1fr; gap: 10px; }
  .guide-fact-pair { grid-template-columns: 1fr; }
  .guide-fact-pair > div { padding: 28px 0; }
  .guide-fact-pair > div + div { padding-left: 0; border-top: 1px solid var(--guide-line); border-left: 0; }
  .ranking-boundary-note { grid-template-columns: 1fr; gap: 13px; }
  .troubleshooting-list summary { grid-template-columns: 28px 1fr auto; gap: 8px; }
  .troubleshooting-list summary strong { font-size: 16px; }
  .troubleshooting-answer { margin-left: 36px; }
  .guide-contact-heading h2 { font-size: 48px; }
  .guide-contact-email { overflow-wrap: anywhere; font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .guide-section-nav { backdrop-filter: none; -webkit-backdrop-filter: none; }
}

@media print {
  .guide-section-nav { position: static; }
  .guide-section { break-inside: avoid; }
  .troubleshooting-list details { display: block; }
  .troubleshooting-list details > div { display: block; }
}