:root {
  --ink: #111820;
  --muted: #68737f;
  --paper: #f7f8f9;
  --surface: #ffffff;
  --rule: #d9dfe5;
  --cobalt: #195fcb;
  --cobalt-dark: #11458f;
  --blue-soft: #e9f1fc;
  --shadow: 0 24px 55px rgba(17, 24, 32, .11);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); color: var(--ink); }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--cobalt); }
.manual-shell { min-height: 100vh; overflow: hidden; }
.manual-header { width: min(1220px, calc(100% - 64px)); min-height: 84px; margin: 0 auto; display: flex; align-items: center; gap: 28px; border-bottom: 1px solid var(--rule); }
.manual-brand { display: flex; align-items: center; gap: 12px; min-width: 190px; }
.manual-brand strong, .manual-brand small { display: block; }
.manual-brand strong { font-size: 18px; letter-spacing: .06em; }
.manual-brand small { margin-top: 4px; color: var(--muted); font-size: 11px; }
.manual-bolt { display: grid; width: 35px; height: 35px; place-items: center; border-radius: 5px; background: var(--ink); color: #fff; font-size: 26px; line-height: 1; }
.manual-nav { display: flex; align-self: stretch; align-items: center; gap: 24px; margin-left: auto; }
.manual-nav-link { display: inline-flex; align-items: center; align-self: stretch; border-bottom: 2px solid transparent; color: var(--muted); font-size: 13px; }
.manual-nav-link.is-current { color: var(--ink); border-color: var(--cobalt); }
.manual-menu { display: none; padding: 9px 12px; border: 1px solid var(--rule); border-radius: 4px; background: var(--surface); color: var(--ink); }
.manual-mobile { display: none; }
.manual-cover { width: min(1220px, calc(100% - 64px)); margin: 0 auto; display: grid; grid-template-columns: 220px minmax(280px, .82fr) 1.25fr; gap: 42px; align-items: center; padding: 72px 0 84px; }
.manual-cover-index { align-self: stretch; padding: 22px 20px 22px 0; border-right: 1px solid var(--rule); }
.manual-cover-index > span, .manual-kicker, .manual-section-head > span, .manual-page-intro > span, .manual-article-kicker { color: var(--cobalt); font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.manual-index-lines { display: grid; gap: 18px; margin: 58px 0 45px; }
.manual-index-lines a { padding-bottom: 12px; border-bottom: 1px solid var(--rule); font-size: 14px; line-height: 1.55; }
.manual-cover-index p { color: var(--muted); font-size: 12px; line-height: 1.8; }
.manual-cover-main { width: 100%; min-width: 0; }
.manual-cover-main h1 { max-width: 550px; margin: 17px 0 22px; font-size: clamp(35px, 4vw, 58px); line-height: 1.08; letter-spacing: 0; overflow-wrap: anywhere; word-break: break-word; }
.manual-cover-main > p:not(.manual-kicker) { max-width: 480px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.9; }
.manual-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.manual-actions a, .manual-section-link { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; padding: 0 17px; border-radius: 4px; font-size: 13px; font-weight: 700; }
.manual-primary { background: var(--cobalt); color: #fff; }
.manual-secondary { border: 1px solid var(--cobalt); color: var(--cobalt); }
.manual-cover-visual { position: relative; margin: 0; }
.manual-cover-visual::after { content: ""; position: absolute; right: -15px; bottom: -15px; width: 80px; height: 80px; border-right: 2px solid var(--cobalt); border-bottom: 2px solid var(--cobalt); pointer-events: none; }
.manual-cover-visual img { display: block; position: relative; width: 100%; height: auto; aspect-ratio: 1672 / 941; object-fit: cover; box-shadow: var(--shadow); }
.manual-cover-visual figcaption { margin-top: 11px; color: var(--muted); font-size: 12px; }
.manual-home { width: min(1220px, calc(100% - 64px)); margin: 0 auto; padding-bottom: 80px; }
.manual-home-grid { display: grid; grid-template-columns: 190px 1fr; gap: 55px; border-top: 1px solid var(--rule); }
.manual-rail { padding-top: 30px; }
.manual-rail-title { margin: 0 0 21px; color: var(--ink); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.manual-rail a { display: block; padding: 11px 0; border-bottom: 1px solid var(--rule); color: var(--muted); font-size: 13px; }
.manual-rail a.is-current { color: var(--cobalt); font-weight: 700; }
.manual-rail-note { padding-top: 23px; color: var(--muted); font-size: 11px; line-height: 1.75; }
.manual-home-content { min-width: 0; }
.manual-home-content > section { padding: 67px 0; border-bottom: 1px solid var(--rule); }
.manual-section-head { max-width: 780px; margin-bottom: 27px; }
.manual-section-head h2 { margin: 12px 0 11px; font-size: clamp(27px, 3.2vw, 42px); line-height: 1.18; letter-spacing: 0; }
.manual-section-head p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.9; }
.manual-overview-columns { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--rule); }
.manual-overview-columns > div { min-height: 150px; padding: 21px 22px 0 0; border-right: 1px solid var(--rule); }
.manual-overview-columns > div + div { padding-left: 22px; }
.manual-overview-columns > div:last-child { border-right: 0; }
.manual-overview-columns strong { font-size: 15px; }
.manual-overview-columns p { margin: 12px 0 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.platform-sheet { border-top: 1px solid var(--rule); }
.platform-row { display: grid; grid-template-columns: 1.1fr 1.8fr auto; gap: 20px; align-items: center; min-height: 67px; padding: 13px 0; border-bottom: 1px solid var(--rule); font-size: 13px; }
.platform-name { color: var(--ink); font-weight: 750; }
.platform-row > span:nth-child(2) { color: var(--muted); }
.platform-row a, .device-entry a, .route-entry a { color: var(--cobalt); font-size: 12px; font-weight: 700; }
.ledger-lines { border-top: 1px solid var(--rule); }
.ledger-lines a { display: grid; grid-template-columns: 1fr 1.3fr auto; gap: 20px; align-items: center; min-height: 72px; border-bottom: 1px solid var(--rule); }
.ledger-lines strong { font-size: 15px; }
.ledger-lines span { color: var(--muted); font-size: 13px; }
.ledger-lines em { color: var(--cobalt); font-size: 12px; font-style: normal; }
.manual-article-list { border-top: 1px solid var(--rule); }
.manual-article-row { padding: 22px 0 24px; border-bottom: 1px solid var(--rule); }
.manual-article-meta { display: flex; gap: 16px; align-items: center; color: var(--cobalt); font-size: 11px; }
.manual-article-meta time { color: var(--muted); }
.manual-article-row h3 { max-width: 760px; margin: 11px 0 9px; font-size: 18px; line-height: 1.5; }
.manual-article-row p { max-width: 760px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.manual-section-link { margin-top: 25px; border: 1px solid var(--cobalt); color: var(--cobalt); }
.manual-qa { display: grid; grid-template-columns: 1fr 1.1fr; gap: 50px; }
.qa-preview details { padding: 18px 0; border-bottom: 1px solid var(--rule); }
.qa-preview summary, .help-group summary { cursor: pointer; font-size: 14px; font-weight: 700; }
.qa-preview p, .help-group p { margin: 13px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.manual-simple { width: min(1220px, calc(100% - 64px)); margin: 0 auto; padding: 76px 0 105px; }
.manual-layout { display: grid; grid-template-columns: minmax(0, 1fr) 190px; gap: 70px; align-items: start; }
.manual-layout > .manual-rail { order: 2; }
.manual-content-width { max-width: 900px; }
.manual-page-intro { padding-bottom: 44px; border-bottom: 1px solid var(--rule); }
.manual-page-intro h1 { max-width: 840px; margin: 16px 0 17px; font-size: clamp(35px, 4.8vw, 58px); line-height: 1.08; letter-spacing: 0; }
.manual-page-intro > p { max-width: 740px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.9; }
.manual-step-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 38px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.manual-step-strip > div { min-height: 125px; padding: 22px 19px 18px 0; border-right: 1px solid var(--rule); }
.manual-step-strip > div + div { padding-left: 19px; }
.manual-step-strip > div:last-child { border-right: 0; }
.manual-step-strip strong { font-size: 14px; }
.manual-step-strip p { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.manual-note { margin: 30px 0 0; padding: 20px 22px; border-left: 3px solid var(--cobalt); background: var(--blue-soft); }
.manual-note strong { font-size: 14px; }
.manual-note p { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.device-entry, .route-entry { display: grid; grid-template-columns: 1fr 1.25fr auto; gap: 28px; align-items: center; padding: 25px 0; border-bottom: 1px solid var(--rule); }
.device-entry-title span, .route-entry > div > span { color: var(--cobalt); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.device-entry h2, .route-entry h2 { margin: 7px 0 0; font-size: 21px; }
.device-entry p, .route-entry p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.help-group { margin-top: 37px; }
.help-group h2 { margin: 0 0 4px; padding-bottom: 12px; border-bottom: 1px solid var(--rule); font-size: 20px; }
.help-group details { padding: 17px 0; border-bottom: 1px solid var(--rule); }
.manual-prose { max-width: 800px; padding-top: 36px; }
.manual-prose h2 { margin: 28px 0 11px; font-size: 22px; }
.manual-prose p { margin: 0; color: var(--muted); line-height: 1.9; }
.contact-sheet { max-width: 680px; margin-top: 38px; padding: 30px; border: 1px solid var(--rule); background: var(--surface); }
.contact-sheet > a { display: inline-block; color: var(--cobalt); font-size: 20px; font-weight: 700; }
.contact-sheet p { margin: 20px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.manual-article-page { width: min(1000px, calc(100% - 64px)); margin: 0 auto; padding: 80px 0 110px; }
.manual-article-page > h1 { max-width: 850px; margin: 16px 0 18px; font-size: clamp(35px, 4.8vw, 58px); line-height: 1.12; }
.manual-article-lead { max-width: 760px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.manual-article-copy { max-width: 820px; margin-top: 55px; padding-top: 32px; border-top: 1px solid var(--rule); }
.manual-article-copy section { margin: 0 0 34px; }
.manual-article-copy h2 { margin: 0 0 11px; font-size: 23px; }
.manual-article-copy p { margin: 0; color: #45515c; font-size: 15px; line-height: 2; }
.manual-next { margin-top: 40px; padding: 20px 22px; border-left: 3px solid var(--cobalt); background: var(--blue-soft); }
.manual-next strong { font-size: 14px; }
.manual-next p { margin-top: 9px; font-size: 13px; line-height: 1.8; }
.manual-related { margin-top: 80px; }
.manual-related .manual-section-head { margin-bottom: 12px; }
.manual-related .manual-article-list { max-width: 820px; }
.manual-not-found { width: min(800px, calc(100% - 64px)); min-height: 62vh; margin: 0 auto; padding: 130px 0; }
.manual-not-found h1 { font-size: 45px; }
.manual-not-found p { color: var(--muted); line-height: 1.8; }
.manual-footer { width: min(1220px, calc(100% - 64px)); margin: 0 auto; display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 45px; padding: 35px 0 48px; border-top: 1px solid var(--rule); }
.manual-footer-lead strong { font-size: 17px; }
.manual-footer-lead p { max-width: 390px; margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.75; }
.manual-footer-column { display: grid; align-content: start; gap: 9px; font-size: 12px; }
.manual-footer-column > span { margin-bottom: 3px; color: var(--muted); }
@media (max-width: 1050px) {
  .manual-header, .manual-cover, .manual-home, .manual-simple, .manual-footer { width: min(100% - 44px, 1220px); }
  .manual-cover { grid-template-columns: 185px minmax(260px, .9fr) 1.1fr; gap: 27px; }
  .manual-nav { gap: 15px; }
  .manual-home-grid { gap: 36px; }
}
@media (max-width: 820px) {
  .manual-nav { display: none; }
  .manual-menu { display: block; margin-left: auto; }
  .manual-mobile { width: min(100% - 44px, 1220px); margin: 0 auto; display: none; grid-template-columns: repeat(2, 1fr); gap: 2px; padding-bottom: 14px; }
  .manual-mobile.is-open { display: grid; }
  .manual-mobile a { padding: 12px; border: 1px solid var(--rule); background: var(--surface); color: var(--muted); font-size: 13px; }
  .manual-cover { grid-template-columns: minmax(0, 1fr); padding: 56px 0 66px; }
  .manual-cover-index { min-height: auto; padding: 0 0 23px; border-right: 0; border-bottom: 1px solid var(--rule); }
  .manual-index-lines { grid-template-columns: repeat(3, 1fr); gap: 15px; margin: 28px 0 16px; }
  .manual-cover-visual { max-width: 700px; }
  .manual-home-grid { grid-template-columns: 1fr; gap: 0; }
  .manual-rail { display: none; }
  .manual-layout { grid-template-columns: 1fr; }
  .manual-layout > .manual-rail { display: none; }
  .manual-qa { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 560px) {
  .manual-header, .manual-cover, .manual-home, .manual-simple, .manual-footer, .manual-mobile, .manual-article-page, .manual-not-found { width: calc(100% - 32px); }
  .manual-header { min-height: 70px; }
  .manual-brand { min-width: 0; }
  .manual-brand strong { font-size: 16px; }
  .manual-brand small { font-size: 10px; }
  .manual-cover { padding: 41px 0 52px; }
  .manual-cover-main, .manual-cover-main h1 { width: 100%; min-width: 0; }
  .manual-cover-main h1, .manual-page-intro h1, .manual-article-page > h1 { font-size: 30px; overflow-wrap: anywhere; word-break: break-all; }
  .manual-cover-main > p:not(.manual-kicker), .manual-page-intro > p { font-size: 15px; }
  .manual-index-lines { grid-template-columns: 1fr; gap: 0; margin: 21px 0 12px; }
  .manual-index-lines a { padding: 11px 0; }
  .manual-home-content > section { padding: 51px 0; }
  .manual-section-head h2 { font-size: 29px; }
  .manual-overview-columns { grid-template-columns: 1fr; }
  .manual-overview-columns > div, .manual-overview-columns > div + div { min-height: auto; padding: 18px 0; border-right: 0; border-bottom: 1px solid var(--rule); }
  .manual-overview-columns > div:last-child { border-bottom: 0; }
  .platform-row { grid-template-columns: 1fr; gap: 7px; padding: 17px 0; }
  .platform-row a { justify-self: start; }
  .ledger-lines a { grid-template-columns: 1fr auto; gap: 8px; padding: 16px 0; }
  .ledger-lines span { grid-column: 1 / -1; }
  .manual-step-strip { grid-template-columns: 1fr; }
  .manual-step-strip > div, .manual-step-strip > div + div { min-height: auto; padding: 17px 0; border-right: 0; border-bottom: 1px solid var(--rule); }
  .manual-step-strip > div:last-child { border-bottom: 0; }
  .device-entry, .route-entry { grid-template-columns: 1fr; gap: 10px; padding: 22px 0; }
  .manual-simple { padding: 54px 0 75px; }
  .manual-article-page { padding: 56px 0 80px; }
  .manual-article-copy { margin-top: 37px; }
  .manual-article-copy p { font-size: 14px; line-height: 1.9; }
  .manual-footer { grid-template-columns: 1fr 1fr; gap: 25px; }
  .manual-footer-lead { grid-column: 1 / -1; }
}