styles.css

:root {
  --navy-950: #051a2b;
  --navy-900: #08263f;
  --navy-800: #103853;
  --ink: #102536;
  --muted: #63717b;
  --red: #a62934;
  --red-deep: #7d1723;
  --gold: #b99a58;
  --gold-pale: #e3d6b5;
  --paper: #f7f4ec;
  --paper-deep: #eee8dc;
  --white: #fffdf8;
  --line: rgba(16, 37, 54, 0.14);
  --serif: "Songti SC", "Noto Serif SC", "STSong", "SimSun", serif;
  --sans: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(16, 37, 54, .025) 1px, transparent 1px) 0 0 / 80px 80px,
    var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a { color: inherit; text-decoration: none; }

.scroll-progress {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, .08);
}
.scroll-progress span { display: block; width: 0; height: 100%; background: var(--red); }

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto minmax(230px, 1fr);
  align-items: center;
  height: 78px;
  padding: 0 clamp(24px, 4vw, 68px);
  border-bottom: 1px solid rgba(16, 37, 54, .11);
  background: rgba(250, 248, 242, .93);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; width: fit-content; }
.brand-seal {
  display: grid;
  place-items: center;
  width: 39px;
  height: 39px;
  border: 1px solid var(--navy-800);
  border-radius: 50%;
  color: var(--navy-900);
  font-family: Georgia, serif;
  font-size: 12px;
  letter-spacing: .08em;
  box-shadow: inset 0 0 0 3px var(--paper), inset 0 0 0 4px rgba(16, 56, 83, .35);
}
.brand strong { display: block; font-family: var(--serif); font-size: 17px; letter-spacing: .16em; }
.brand small { display: block; margin-top: -4px; color: #7b8186; font-size: 8px; letter-spacing: .17em; }
.site-header nav { display: flex; align-items: stretch; height: 100%; gap: 34px; }
.site-header nav a {
  position: relative;
  display: grid;
  place-items: center;
  color: #344957;
  font-size: 14px;
  font-weight: 650;
}
.site-header nav a::after {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--red);
  content: "";
  transition: width .35s var(--ease), left .35s var(--ease);
}
.site-header nav a:hover::after, .site-header nav a.active::after { left: 0; width: 100%; }
.site-header nav a.active { color: var(--red); }
.header-action {
  justify-self: end;
  border: 1px solid var(--navy-900);
  padding: 10px 16px;
  color: var(--navy-900);
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  transition: .25s ease;
}
.header-action:hover { color: var(--white); background: var(--navy-900); }

.hero {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, .58fr);
  gap: clamp(42px, 7vw, 120px);
  align-items: center;
  padding: 100px clamp(32px, 8vw, 140px) 88px;
  color: var(--white);
  background:
    radial-gradient(circle at 78% 28%, rgba(164, 41, 52, .23), transparent 28%),
    radial-gradient(circle at 15% 120%, rgba(62, 104, 129, .45), transparent 38%),
    var(--navy-950);
}
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: .28;
  background-image:
    linear-gradient(rgba(255, 255, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .055) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(100deg, #000, transparent 78%);
}
.hero::after {
  position: absolute;
  right: -120px;
  bottom: -310px;
  width: 650px;
  height: 650px;
  border: 1px solid rgba(227, 214, 181, .12);
  border-radius: 50%;
  content: "";
  box-shadow: 0 0 0 80px rgba(227, 214, 181, .025), 0 0 0 160px rgba(227, 214, 181, .018);
}
.hero-orbit { position: absolute; border: 1px solid rgba(227, 214, 181, .15); border-radius: 50%; }
.hero-orbit::before { position: absolute; top: 50%; left: -4px; width: 7px; height: 7px; border-radius: 50%; background: var(--gold); content: ""; box-shadow: 0 0 16px var(--gold); }
.orbit-a { top: 18%; right: 11%; width: 180px; height: 180px; animation: orbitSpin 16s linear infinite; }
.orbit-b { top: 13%; right: 8%; width: 280px; height: 280px; opacity: .6; animation: orbitSpin 28s linear reverse infinite; }
@keyframes orbitSpin { to { transform: rotate(360deg); } }

.hero-main, .hero-brief, .hero-index { position: relative; z-index: 2; }
.hero-main { max-width: 770px; animation: heroIn .9s var(--ease) both; }
@keyframes heroIn { from { opacity: 0; transform: translateY(28px); } }
.eyebrow { display: flex; align-items: center; gap: 14px; color: var(--gold-pale); font-size: 10px; font-weight: 700; letter-spacing: .2em; }
.eyebrow i { width: 54px; height: 1px; background: var(--gold); }
.hero-kicker { margin: 42px 0 10px; color: rgba(255, 253, 248, .56); font-size: 11px; letter-spacing: .25em; }
.hero h1 { margin: 0; font-family: var(--serif); font-size: clamp(56px, 7vw, 104px); font-weight: 500; letter-spacing: -.05em; line-height: .98; }
.hero h1 em { color: var(--white); font-style: normal; }
.hero h1 em::after { display: inline-block; width: 10px; height: 10px; margin-left: 18px; border-radius: 50%; background: var(--red); content: ""; vertical-align: .2em; box-shadow: 0 0 20px rgba(166, 41, 52, .8); }
.hero-summary { max-width: 660px; margin: 28px 0 0; color: rgba(255, 253, 248, .72); font-family: var(--serif); font-size: 17px; line-height: 2; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 36px; }
.primary-action {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  padding: 15px 20px;
  border: 0;
  color: var(--white);
  background: var(--red);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 12px 35px rgba(125, 23, 35, .35);
  transition: transform .25s var(--ease), background .25s;
}
.primary-action:hover { transform: translateY(-3px); background: #ba3441; }
.text-action { padding: 8px 0; border: 0; border-bottom: 1px solid rgba(255, 255, 255, .45); color: var(--white); background: transparent; cursor: pointer; font-size: 13px; }

.hero-brief {
  align-self: center;
  min-height: 438px;
  border: 1px solid rgba(255, 255, 255, .14);
  padding: 24px 28px 26px;
  background: rgba(255, 255, 255, .055);
  backdrop-filter: blur(12px);
  box-shadow: 22px 28px 60px rgba(0, 0, 0, .2);
  animation: heroIn .9s .15s var(--ease) both;
}
.hero-brief::before { position: absolute; top: -1px; left: -1px; width: 42%; height: 3px; background: var(--gold); content: ""; }
.brief-head { display: flex; justify-content: space-between; gap: 18px; padding-bottom: 17px; border-bottom: 1px solid rgba(255, 255, 255, .12); color: var(--gold-pale); font-size: 10px; letter-spacing: .14em; }
.live-dot { color: rgba(255, 255, 255, .55); }
.live-dot::before { display: inline-block; width: 5px; height: 5px; margin-right: 7px; border-radius: 50%; background: #80c8b0; content: ""; animation: pulse 1.8s infinite; }
@keyframes pulse { 50% { opacity: .35; box-shadow: 0 0 0 6px rgba(128, 200, 176, .1); } }
.deadline-block { position: relative; padding: 23px 0 18px; }
.deadline-block > span { color: rgba(255, 255, 255, .55); font-size: 11px; }
.deadline-block strong { display: block; margin-top: 4px; color: var(--gold-pale); font-family: Georgia, serif; font-size: 70px; font-weight: 400; line-height: 1; }
.deadline-block strong small { margin-left: 8px; font-family: var(--serif); font-size: 14px; }
.deadline-block p { max-width: 270px; margin: 11px 0 0; color: rgba(255, 255, 255, .55); font-size: 12px; line-height: 1.7; }
.brief-facts { margin: 0; }
.brief-facts div { display: grid; grid-template-columns: 90px 1fr; gap: 15px; padding: 12px 0; border-top: 1px solid rgba(255, 255, 255, .1); }
.brief-facts dt { color: rgba(255, 255, 255, .45); font-size: 11px; }
.brief-facts dd { margin: 0; color: rgba(255, 255, 255, .83); font-size: 12px; font-weight: 600; }
.brief-facts mark { padding: 3px 7px; color: var(--gold-pale); background: rgba(185, 154, 88, .14); }
.hero-index { position: absolute; right: 35px; bottom: 32px; display: flex; align-items: flex-end; gap: 12px; color: rgba(255, 255, 255, .35); }
.hero-index > span { font-family: Georgia, serif; font-size: 24px; }
.hero-index i { width: 36px; height: 1px; margin-bottom: 10px; background: currentColor; }
.hero-index small { font-size: 7px; line-height: 1.4; letter-spacing: .13em; }

.signal-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); background: var(--white); }
.signal-strip article { display: grid; grid-template-columns: 26px 1fr; gap: 14px; min-height: 104px; padding: 26px clamp(18px, 3vw, 46px); border-right: 1px solid var(--line); }
.signal-strip article:last-child { border-right: 0; }
.signal-strip article > span { color: var(--gold); font-family: Georgia, serif; font-size: 11px; }
.signal-strip p { margin: 0; color: var(--muted); font-size: 10px; letter-spacing: .06em; }
.signal-strip strong { display: block; margin-top: 5px; color: var(--ink); font-size: 13px; letter-spacing: 0; }

.content-layout { display: grid; grid-template-columns: 215px minmax(0, 1fr); gap: clamp(45px, 7vw, 110px); max-width: 1480px; margin: 0 auto; padding: 90px clamp(28px, 6vw, 92px) 120px; }
.chapter-rail { position: sticky; top: 116px; align-self: start; display: flex; flex-direction: column; }
.rail-label { margin-bottom: 24px; padding-bottom: 15px; border-bottom: 2px solid var(--red); color: var(--red); font-size: 9px; font-weight: 800; letter-spacing: .18em; }
.chapter-rail a { display: grid; grid-template-columns: 30px 1fr; padding: 14px 5px; border-bottom: 1px solid var(--line); color: #7b858c; font-size: 12px; transition: .25s ease; }
.chapter-rail a b { color: var(--gold); font-family: Georgia, serif; font-size: 10px; font-weight: 400; }
.chapter-rail a:hover, .chapter-rail a.active { color: var(--ink); transform: translateX(5px); }
.rail-progress { height: 3px; margin-top: 24px; overflow: hidden; background: var(--paper-deep); }
.rail-progress span { display: block; width: 0; height: 100%; background: var(--red); transition: width .2s; }
.document-flow { min-width: 0; }
.chapter { padding: 14px 0 110px; border-bottom: 1px solid var(--line); scroll-margin-top: 100px; }
.chapter + .chapter { padding-top: 100px; }
.chapter:last-child { border: 0; padding-bottom: 0; }
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }
.chapter-heading { display: grid; grid-template-columns: minmax(360px, 1.25fr) minmax(260px, .75fr); gap: 70px; align-items: end; margin-bottom: 55px; }
.chapter-heading span { color: var(--red); font-size: 9px; font-weight: 800; letter-spacing: .2em; }
.chapter-heading h2 { margin: 8px 0 0; font-family: var(--serif); font-size: clamp(38px, 4vw, 58px); font-weight: 500; letter-spacing: -.04em; line-height: 1.15; }
.chapter-heading > p { margin: 0; padding-left: 20px; border-left: 1px solid var(--gold); color: var(--muted); font-size: 14px; line-height: 1.9; }

.stage-atlas { border: 1px solid var(--line); background: rgba(255, 253, 248, .65); }
.stage-track { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); min-height: 156px; padding: 32px 24px 24px; border-bottom: 1px solid var(--line); }
.track-line { position: absolute; top: 64px; left: calc(12.5% + 24px); width: calc(75% - 48px); height: 1px; background: rgba(16, 37, 54, .18); }
.track-line span { display: block; width: 33%; height: 2px; margin-top: -1px; background: var(--red); transition: width .5s var(--ease); }
.stage-node { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; border: 0; color: #65747e; background: transparent; cursor: pointer; }
.stage-node i { display: grid; place-items: center; width: 27px; height: 27px; margin-bottom: 18px; border: 1px solid #a9afb0; border-radius: 50%; background: var(--white); font-family: Georgia, serif; font-size: 9px; font-style: normal; transition: .3s var(--ease); }
.stage-node span { font-family: var(--serif); font-size: 16px; }
.stage-node small { margin-top: 5px; color: #9ca3a5; font-size: 9px; letter-spacing: .1em; }
.stage-node:hover i, .stage-node.active i { border-color: var(--red); color: var(--white); background: var(--red); box-shadow: 0 0 0 7px rgba(166, 41, 52, .09); transform: scale(1.08); }
.stage-node.active span { color: var(--ink); font-weight: 700; }
.stage-detail { display: grid; grid-template-columns: 120px 1.1fr .9fr; gap: 38px; min-height: 255px; padding: 40px; }
.stage-detail .stage-code { color: var(--gold); font-family: Georgia, serif; font-size: 54px; line-height: 1; }
.stage-detail h3 { margin: 0 0 14px; font-family: var(--serif); font-size: 27px; font-weight: 600; }
.stage-detail p { margin: 0; color: var(--muted); font-size: 14px; }
.stage-detail ul { margin: 0; padding: 0; list-style: none; }
.stage-detail li { position: relative; padding: 10px 0 10px 18px; border-bottom: 1px solid var(--line); font-size: 13px; }
.stage-detail li::before { position: absolute; top: 20px; left: 0; width: 5px; height: 5px; border-radius: 50%; background: var(--gold); content: ""; }
.fit-badge { display: inline-block; margin-top: 20px; padding: 6px 9px; border: 1px solid rgba(166, 41, 52, .3); color: var(--red); font-size: 10px; font-weight: 700; letter-spacing: .08em; }

.split-heading { grid-template-columns: 1fr auto; }
.route-state { display: flex; flex-direction: column; align-items: flex-end; }
.route-state small { color: var(--muted); font-size: 9px; letter-spacing: .12em; }
.route-state strong { color: var(--gold); font-family: Georgia, serif; font-size: 36px; font-weight: 400; }
.route-map { display: grid; grid-template-columns: minmax(245px, .72fr) minmax(0, 1.28fr); min-height: 520px; border: 1px solid var(--line); background: var(--white); }
.route-steps { display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.route-step { flex: 1; display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 12px; padding: 17px 20px; border: 0; border-bottom: 1px solid var(--line); color: #6c7880; background: transparent; cursor: pointer; text-align: left; transition: .25s; }
.route-step:last-child { border-bottom: 0; }
.route-step b { color: var(--gold); font-family: Georgia, serif; font-size: 11px; }
.route-step span { font-family: var(--serif); font-size: 16px; }
.route-step small { font-size: 8px; letter-spacing: .08em; }
.route-step:hover { padding-left: 26px; background: #f8f4eb; }
.route-step.active { color: var(--white); background: var(--navy-900); }
.route-step.active b { color: var(--gold-pale); }
.route-detail { position: relative; overflow: hidden; padding: 52px clamp(32px, 5vw, 70px); }
.route-detail::after { position: absolute; right: -60px; bottom: -80px; color: rgba(16, 37, 54, .035); font-family: Georgia, serif; font-size: 270px; line-height: 1; content: attr(data-number); }
.route-detail > * { position: relative; z-index: 1; }
.route-detail > span { color: var(--red); font-size: 9px; font-weight: 800; letter-spacing: .2em; }
.route-detail h3 { max-width: 560px; margin: 14px 0 18px; font-family: var(--serif); font-size: 34px; font-weight: 500; line-height: 1.3; }
.route-detail > p { max-width: 650px; color: var(--muted); font-size: 14px; }
.route-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-top: 40px; }
.route-detail-grid div { padding-top: 14px; border-top: 1px solid var(--line); }
.route-detail-grid small { color: var(--gold); font-size: 9px; letter-spacing: .12em; }
.route-detail-grid strong { display: block; margin-top: 8px; font-family: var(--serif); font-size: 17px; }
.route-tip { margin-top: 34px; padding: 15px 18px; border-left: 3px solid var(--red); background: #f3eee3; color: #586771; font-size: 12px; }

.eligibility-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.question-card { position: relative; min-height: 240px; padding: 30px; border-right: 1px solid var(--line); background: rgba(255, 253, 248, .7); cursor: pointer; transition: .3s var(--ease); }
.question-card:last-child { border-right: 0; }
.question-card input, .material-list input { position: absolute; opacity: 0; pointer-events: none; }
.question-card .checkmark { position: absolute; top: 25px; right: 25px; width: 22px; height: 22px; border: 1px solid #9da7ac; }
.question-card .checkmark::after { position: absolute; top: 3px; left: 7px; width: 5px; height: 10px; border: solid var(--white); border-width: 0 2px 2px 0; content: ""; opacity: 0; transform: rotate(45deg); }
.question-card b { display: block; color: var(--gold); font-family: Georgia, serif; font-size: 11px; }
.question-card strong { display: block; max-width: 220px; margin: 48px 0 14px; font-family: var(--serif); font-size: 20px; line-height: 1.55; }
.question-card small { color: var(--muted); font-size: 11px; }
.question-card:hover { transform: translateY(-5px); box-shadow: 0 20px 50px rgba(16, 37, 54, .08); }
.question-card:has(input:checked) { color: var(--white); background: var(--navy-900); }
.question-card:has(input:checked) small { color: rgba(255, 255, 255, .6); }
.question-card input:checked + .checkmark { border-color: var(--red); background: var(--red); }
.question-card input:checked + .checkmark::after { opacity: 1; }
.eligibility-result { display: grid; grid-template-columns: 100px 1fr; align-items: center; gap: 30px; margin-top: 16px; padding: 24px 30px; color: var(--white); background: var(--navy-950); }
.result-score { color: var(--gold-pale); font-family: Georgia, serif; font-size: 48px; line-height: 1; }
.result-score small { font-size: 14px; }
.eligibility-result div > small { color: var(--gold); font-size: 8px; letter-spacing: .14em; }
.eligibility-result strong { display: block; margin: 2px 0; font-family: var(--serif); font-size: 17px; }
.eligibility-result p { margin: 0; color: rgba(255, 255, 255, .55); font-size: 11px; }

.completion-ring { display: grid; place-items: center; align-content: center; width: 100px; height: 100px; border-radius: 50%; background: conic-gradient(var(--red) 0%, var(--paper-deep) 0); box-shadow: inset 0 0 0 10px var(--paper); }
.completion-ring strong { font-family: Georgia, serif; font-size: 20px; line-height: 1; }
.completion-ring small { margin-top: 3px; color: var(--muted); font-size: 7px; letter-spacing: .14em; }
.material-board { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(270px, .6fr); border: 1px solid var(--line); background: var(--white); }
.material-list label { position: relative; display: grid; grid-template-columns: 52px 1fr auto; align-items: center; gap: 18px; min-height: 100px; padding: 20px 28px; border-bottom: 1px solid var(--line); cursor: pointer; transition: .25s; }
.material-list label:last-child { border-bottom: 0; }
.material-list label:hover { background: #f8f4eb; }
.material-list label > span { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--line); color: var(--gold); font-family: Georgia, serif; font-size: 10px; transition: .25s; }
.material-list strong { display: block; font-family: var(--serif); font-size: 17px; }
.material-list small { display: block; margin-top: 3px; color: var(--muted); font-size: 10px; }
.material-list i { color: #9da4a7; font-size: 8px; font-style: normal; letter-spacing: .1em; }
.material-list label:has(input:checked) { background: rgba(16, 56, 83, .045); }
.material-list label:has(input:checked) > span { border-color: var(--red); color: var(--white); background: var(--red); }
.material-list label:has(input:checked) > div { opacity: .55; }
.material-list label:has(input:checked) strong { text-decoration: line-through; }
.evidence-note { padding: 38px 30px; color: var(--white); background: var(--navy-900); }
.note-index { color: var(--gold-pale); font-size: 8px; letter-spacing: .2em; line-height: 1.5; }
.evidence-note blockquote { margin: 55px 0 40px; font-family: var(--serif); font-size: 20px; line-height: 1.85; }
.evidence-chain { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: rgba(255, 255, 255, .7); font-size: 10px; }
.evidence-chain i { color: var(--gold); font-style: normal; }
.line-button { margin-top: 45px; padding: 8px 0; border: 0; border-bottom: 1px solid rgba(255, 255, 255, .35); color: rgba(255, 255, 255, .75); background: transparent; cursor: pointer; font-size: 10px; }

.resource-grid { display: grid; grid-template-columns: 1.15fr .85fr; border: 1px solid var(--line); background: var(--white); }
.featured-resource { grid-row: span 3; padding: 46px; border-right: 1px solid var(--line); background: linear-gradient(150deg, rgba(185, 154, 88, .08), transparent 60%); }
.featured-resource > span { color: var(--red); font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.featured-resource h3 { max-width: 500px; margin: 65px 0 20px; font-family: var(--serif); font-size: 30px; font-weight: 500; line-height: 1.45; }
.featured-resource p { max-width: 520px; color: var(--muted); font-size: 13px; }
.resource-action { display: flex; justify-content: space-between; width: 100%; margin-top: 70px; padding: 15px 0; border: 0; border-top: 1px solid var(--ink); color: var(--ink); background: transparent; cursor: pointer; font-weight: 700; text-align: left; }
.resource-item { display: grid; grid-template-columns: 38px 1fr 38px; align-items: center; gap: 15px; padding: 25px 26px; border-bottom: 1px solid var(--line); }
.resource-item:last-child { border-bottom: 0; }
.resource-item > b { color: var(--gold); font-family: Georgia, serif; font-size: 10px; }
.resource-item small { display: block; color: var(--red); font-size: 8px; letter-spacing: .13em; }
.resource-item strong { display: block; margin: 4px 0; font-family: var(--serif); font-size: 16px; }
.resource-item span { color: var(--muted); font-size: 9px; }
.resource-item button { width: 34px; height: 34px; border: 1px solid var(--line); background: transparent; cursor: pointer; transition: .25s; }
.resource-item button:hover { color: var(--white); background: var(--navy-900); }
.source-footer { display: grid; grid-template-columns: 210px 1fr; gap: 30px; margin-top: 20px; padding: 18px 22px; border-left: 3px solid var(--gold); background: #eee8dc; }
.source-footer span { color: var(--red); font-size: 9px; font-weight: 700; letter-spacing: .1em; }
.source-footer p { margin: 0; color: var(--muted); font-size: 11px; }

.site-footer { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; padding: 50px clamp(28px, 6vw, 90px); color: rgba(255, 255, 255, .65); background: var(--navy-950); }
.footer-brand { color: var(--white); }
.footer-brand .brand-seal { color: var(--gold-pale); border-color: var(--gold-pale); box-shadow: inset 0 0 0 3px var(--navy-950), inset 0 0 0 4px rgba(227, 214, 181, .4); }
.site-footer p { font-family: var(--serif); font-size: 13px; }
.site-footer > a { justify-self: end; border-bottom: 1px solid rgba(255, 255, 255, .35); font-size: 11px; }

.assistant-trigger { position: fixed; z-index: 60; right: 28px; bottom: 25px; display: flex; align-items: center; gap: 10px; padding: 8px 14px 8px 8px; border: 1px solid rgba(16, 37, 54, .18); border-radius: 40px; color: var(--ink); background: rgba(255, 253, 248, .95); box-shadow: 0 12px 40px rgba(5, 26, 43, .18); cursor: pointer; backdrop-filter: blur(12px); transition: .3s var(--ease); }
.assistant-trigger:hover { transform: translateY(-4px); }
.assistant-trigger > span { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; color: var(--white); background: var(--red); font-family: var(--serif); font-size: 18px; }
.assistant-trigger div { text-align: left; }
.assistant-trigger small { display: block; color: var(--gold); font-size: 7px; letter-spacing: .13em; }
.assistant-trigger strong { font-family: var(--serif); font-size: 13px; }
.assistant-panel { position: fixed; z-index: 65; right: 28px; bottom: 88px; width: min(390px, calc(100vw - 40px)); padding: 24px; border: 1px solid rgba(255, 255, 255, .13); color: var(--white); background: var(--navy-900); box-shadow: 0 25px 80px rgba(5, 26, 43, .36); opacity: 0; pointer-events: none; transform: translateY(16px) scale(.98); transform-origin: bottom right; transition: .3s var(--ease); }
.assistant-panel.open { opacity: 1; pointer-events: auto; transform: none; }
.assistant-panel header { display: flex; justify-content: space-between; padding-bottom: 15px; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.assistant-panel header small { display: block; color: var(--gold); font-size: 7px; letter-spacing: .13em; }
.assistant-panel header strong { font-family: var(--serif); font-size: 15px; }
.assistant-panel header button { border: 0; color: rgba(255, 255, 255, .6); background: transparent; cursor: pointer; font-size: 24px; }
.assistant-panel > p { min-height: 82px; margin: 22px 0; color: rgba(255, 255, 255, .72); font-family: var(--serif); font-size: 14px; }
.assistant-options { display: grid; gap: 8px; }
.assistant-options button { padding: 11px 13px; border: 1px solid rgba(255, 255, 255, .15); color: rgba(255, 255, 255, .78); background: transparent; cursor: pointer; font-size: 11px; text-align: left; transition: .2s; }
.assistant-options button:hover { color: var(--navy-950); background: var(--gold-pale); }
.toast { position: fixed; z-index: 80; left: 50%; bottom: 28px; max-width: min(440px, calc(100vw - 30px)); padding: 11px 18px; color: var(--white); background: var(--navy-950); box-shadow: 0 12px 40px rgba(5, 26, 43, .25); font-size: 12px; opacity: 0; pointer-events: none; transform: translate(-50%, 15px); transition: .3s var(--ease); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 1050px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 80px; }
  .hero-brief { width: min(100%, 620px); min-height: auto; }
  .signal-strip { grid-template-columns: 1fr 1fr; }
  .signal-strip article:nth-child(2) { border-right: 0; }
  .content-layout { grid-template-columns: 1fr; }
  .chapter-rail { display: none; }
  .chapter-heading { gap: 35px; }
  .stage-detail { grid-template-columns: 90px 1fr; }
  .stage-detail ul { grid-column: 2; }
}

@media (max-width: 760px) {
  body { font-size: 15px; }
  .site-header { height: 68px; padding: 0 18px; }
  .header-action { display: none; }
  .brand strong { font-size: 15px; }
  .hero { min-height: auto; padding: 70px 22px 60px; }
  .hero h1 { font-size: clamp(48px, 15vw, 70px); }
  .hero-summary br { display: none; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 15px; }
  .hero-brief { padding: 22px; }
  .hero-index, .orbit-b { display: none; }
  .signal-strip { grid-template-columns: 1fr; }
  .signal-strip article { border-right: 0; }
  .content-layout { padding: 60px 18px 80px; }
  .chapter { padding-bottom: 75px; }
  .chapter + .chapter { padding-top: 70px; }
  .chapter-heading, .split-heading { grid-template-columns: 1fr; align-items: start; gap: 24px; margin-bottom: 38px; }
  .chapter-heading h2 { font-size: 39px; }
  .chapter-heading > p { padding-left: 14px; }
  .route-state { align-items: flex-start; }
  .stage-track { grid-template-columns: 1fr 1fr; gap: 24px 0; }
  .track-line { display: none; }
  .stage-detail { grid-template-columns: 1fr; padding: 28px; }
  .stage-detail .stage-code { font-size: 36px; }
  .stage-detail ul { grid-column: auto; }
  .route-map { grid-template-columns: 1fr; }
  .route-steps { display: grid; grid-template-columns: 1fr 1fr; border-right: 0; border-bottom: 1px solid var(--line); }
  .route-step { grid-template-columns: 26px 1fr; }
  .route-step small { display: none; }
  .route-detail { padding: 34px 25px; }
  .route-detail h3 { font-size: 27px; }
  .route-detail-grid { grid-template-columns: 1fr; gap: 18px; }
  .eligibility-grid { grid-template-columns: 1fr; }
  .question-card { min-height: 210px; border-right: 0; border-bottom: 1px solid var(--line); }
  .question-card:last-child { border-bottom: 0; }
  .eligibility-result { grid-template-columns: 70px 1fr; padding: 20px; }
  .material-board { grid-template-columns: 1fr; }
  .material-list label { grid-template-columns: 44px 1fr; padding: 18px; }
  .material-list i { display: none; }
  .resource-grid { grid-template-columns: 1fr; }
  .featured-resource { grid-row: auto; padding: 30px; border-right: 0; border-bottom: 1px solid var(--line); }
  .featured-resource h3 { margin-top: 40px; font-size: 25px; }
  .resource-action { margin-top: 40px; }
  .source-footer { grid-template-columns: 1fr; gap: 8px; }
  .site-footer { grid-template-columns: 1fr; padding-bottom: 100px; }
  .site-footer > a { justify-self: start; }
  .assistant-trigger { right: 15px; bottom: 15px; }
  .assistant-trigger div { display: none; }
  .assistant-trigger { padding: 6px; }
  .assistant-panel { right: 15px; bottom: 75px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}