:root {
  --ink: #18333a;
  --deep: #102f35;
  --deep-2: #071e24;
  --teal: #276a70;
  --cyan: #62c3c2;
  --gold: #caa463;
  --gold-soft: #f3e8cf;
  --paper: #f6f7f4;
  --white: #fff;
  --muted: #65777b;
  --line: #dce3e1;
  --warn: #d68738;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif; line-height: 1.7; }
a { color: inherit; }
.wrap { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 99; padding: 10px 16px; border-radius: 8px; background: white; }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 20; color: white; border-bottom: 1px solid rgba(255,255,255,.1); background: rgba(7,30,36,.94); backdrop-filter: blur(17px); }
.header-inner { min-height: 75px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.monogram { display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid var(--gold); border-radius: 50%; color: var(--gold); font-family: Georgia, serif; font-size: 23px; }
.brand strong, .brand small { display: block; }
.brand strong { font-family: Georgia, serif; font-size: 20px; letter-spacing: .12em; }
.brand small { color: rgba(255,255,255,.45); font-size: 8px; letter-spacing: .1em; }
nav { display: flex; gap: clamp(14px,2vw,28px); }
nav a { color: rgba(255,255,255,.68); text-decoration: none; font-size: 13px; }
nav a:hover, nav a:focus-visible { color: white; }
.status { padding: 7px 11px; border: 1px solid rgba(202,164,99,.35); border-radius: 999px; color: var(--gold); font-size: 11px; }

.hero { position: relative; overflow: hidden; color: white; background: var(--deep); }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(255,255,255,.025) 0 1px, transparent 1px 14%), radial-gradient(circle at 83% 20%, rgba(98,195,194,.12), transparent 30%); background-size: 64px 64px, auto; }
.orbit { position: absolute; width: 620px; height: 620px; right: -230px; top: -150px; border: 1px solid rgba(202,164,99,.17); border-radius: 50%; }
.orbit i { position: absolute; inset: 70px; border: 1px solid rgba(202,164,99,.11); border-radius: 50%; }
.orbit i:nth-child(2) { inset: 145px; }
.orbit i:nth-child(3) { inset: 220px; background: rgba(98,195,194,.06); }
.hero-layout { position: relative; min-height: 710px; display: grid; grid-template-columns: 1fr 1fr; gap: 85px; align-items: center; padding-block: 92px; }
.eyebrow, .section-label { margin: 0 0 18px; color: var(--teal); font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.hero .eyebrow { color: var(--gold); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 27px; font-family: "Songti SC", "Noto Serif SC", serif; font-size: clamp(43px, 5.7vw, 71px); line-height: 1.15; letter-spacing: -.04em; }
h1 em { color: var(--gold); font-style: normal; }
h2 { margin-bottom: 18px; font-family: "Songti SC", "Noto Serif SC", serif; font-size: clamp(31px,4.1vw,48px); line-height: 1.25; letter-spacing: -.025em; }
h3 { line-height: 1.4; }
.lead { max-width: 680px; color: rgba(255,255,255,.69); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 22px; border-radius: 3px; text-decoration: none; font-size: 14px; font-weight: 700; transition: transform .2s ease; }
.button:hover { transform: translateY(-2px); }
.button.gold { color: var(--deep-2); background: var(--gold); }
.button.ghost { color: white; border: 1px solid rgba(255,255,255,.25); }
.disclaimer { margin: 22px 0 0; color: rgba(255,255,255,.43); font-size: 12px; }
.asset-map { position: relative; min-height: 500px; }
.map-core, .map-node { position: absolute; border: 1px solid rgba(255,255,255,.16); background: rgba(7,30,36,.82); box-shadow: 0 20px 60px rgba(0,0,0,.2); }
.map-core { left: 50%; top: 50%; width: 190px; height: 190px; display: grid; place-content: center; transform: translate(-50%,-50%); border-color: rgba(202,164,99,.6); border-radius: 50%; text-align: center; }
.map-core strong, .map-core span, .map-node b, .map-node small { display: block; }
.map-core strong { color: var(--gold); font: 700 21px "Songti SC",serif; }
.map-core span { color: rgba(255,255,255,.45); font-size: 11px; }
.map-node { min-width: 155px; padding: 15px 17px; border-radius: 9px; }
.map-node b { font-size: 13px; }
.map-node small { color: rgba(255,255,255,.43); }
.n1 { left: 0; top: 42px; }.n2 { right: 5px; top: 25px; }.n3 { left: -10px; bottom: 54px; }.n4 { right: -5px; bottom: 48px; }.n5 { left: 50%; bottom: -5px; transform: translateX(-50%); }
.capability-strip { position: relative; display: grid; grid-template-columns: repeat(5,1fr); border-top: 1px solid rgba(255,255,255,.12); }
.capability-strip span { padding: 23px 10px; color: rgba(255,255,255,.58); text-align: center; font-size: 12px; letter-spacing: .08em; }
.capability-strip span + span { border-left: 1px solid rgba(255,255,255,.12); }

.section { padding-block: 105px; }
.definition { background: white; }
.definition-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 100px; }
.definition-layout > div:last-child { color: var(--muted); font-size: 17px; }
.section-heading { max-width: 830px; margin-bottom: 45px; }
.section-heading > p:last-child { color: var(--muted); }
.scope-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.scope-grid article { min-height: 365px; padding: 28px; border: 1px solid var(--line); background: white; }
.scope-grid article > span { color: var(--gold); font: 800 12px ui-monospace,monospace; }
.scope-grid h3 { margin: 42px 0 12px; font-family: "Songti SC",serif; font-size: 22px; }
.scope-grid p { color: var(--muted); font-size: 13px; }
.scope-grid ul { margin: 25px 0 0; padding: 16px 0 0; border-top: 1px solid var(--line); list-style: none; }
.scope-grid li { padding: 4px 0; font-size: 12px; }
.scope-grid li::before { content: "—"; margin-right: 8px; color: var(--gold); }

.objects { background: #edf3f1; }
.objects-layout { display: grid; grid-template-columns: .65fr 1.35fr; gap: 80px; }
.objects-copy { position: sticky; top: 120px; align-self: start; }
.objects-copy > p:last-child { color: var(--muted); }
.object-list { display: grid; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.object-list article { min-height: 165px; padding: 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.55); }
.object-list b { color: var(--teal); }
.object-list p { margin: 23px 0 0; color: var(--muted); font-size: 12px; }

.ledger { background: white; }
.ledger-grid { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.ledger-grid article { min-height: 250px; padding: 25px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.ledger-grid span { color: var(--gold); font-size: 11px; font-weight: 800; }
.ledger-grid h3 { margin: 28px 0 10px; font-size: 18px; }
.ledger-grid p { color: var(--muted); font-size: 12px; }

.workflow { color: white; background: var(--deep-2); }
.section-heading.light .section-label { color: var(--gold); }
.section-heading.light > p:last-child { color: rgba(255,255,255,.54); }
.steps { display: grid; grid-template-columns: repeat(3,1fr); margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.13); border-left: 1px solid rgba(255,255,255,.13); list-style: none; }
.steps li { min-height: 210px; display: flex; gap: 18px; padding: 25px; border-right: 1px solid rgba(255,255,255,.13); border-bottom: 1px solid rgba(255,255,255,.13); }
.steps b { color: var(--gold); font: 700 11px ui-monospace,monospace; }
.steps h3 { font-size: 17px; }
.steps p { color: rgba(255,255,255,.46); font-size: 12px; }

.controls { background: white; }
.controls-layout { display: grid; grid-template-columns: .55fr 1.45fr; gap: 80px; }
.control-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; }
.control-grid article { min-height: 230px; padding: 25px; border: 1px solid var(--line); border-radius: 12px; }
.control-grid article:last-child { grid-column: 1/-1; min-height: 190px; }
.control-grid span { color: var(--warn); font-size: 11px; font-weight: 800; }
.control-grid h3 { margin: 27px 0 10px; font-size: 18px; }
.control-grid p { color: var(--muted); font-size: 13px; }

.system { background: #edf3f1; }
.system-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 85px; align-items: center; }
.system-copy > p { color: var(--muted); }
.system-copy ul { margin: 28px 0 0; padding: 0; list-style: none; }
.system-copy li { padding: 9px 0 9px 22px; border-bottom: 1px solid var(--line); font-size: 13px; }
.system-copy li::before { content: "✓"; float: left; margin-left: -20px; color: var(--teal); }
.system-board { overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: white; box-shadow: 0 25px 70px rgba(16,47,53,.12); }
.board-head { display: flex; justify-content: space-between; gap: 20px; padding: 20px 22px; color: white; background: var(--deep); }
.board-head small { color: rgba(255,255,255,.48); }
.board-row { display: grid; grid-template-columns: 105px 1fr auto; gap: 16px; align-items: center; padding: 18px 22px; border-bottom: 1px solid var(--line); }
.board-row span { color: var(--muted); font-size: 12px; }
.board-row i { padding: 4px 8px; border-radius: 5px; font-size: 10px; font-style: normal; }
.board-row .ok { color: #227159; background: #dcf3ea; }.board-row .warn { color: #9b5d1e; background: #fff0d9; }.board-row .work { color: #245b86; background: #dcecf9; }.board-row .draft { color: #6c6670; background: #eeeaf0; }

.roles { background: white; }
.role-table { border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.role-row { display: grid; grid-template-columns: .35fr 1fr 1fr; }
.role-row > * { margin: 0; padding: 20px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.role-row.head { color: white; background: var(--deep); font-weight: 700; font-size: 12px; }
.role-row b { color: var(--teal); }
.role-row p { color: var(--muted); font-size: 12px; }
.hard-boundary { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 25px; padding: 22px; border-left: 4px solid var(--gold); background: var(--gold-soft); }
.hard-boundary strong { margin-right: 12px; }
.hard-boundary span { padding: 6px 10px; border-radius: 5px; color: #765c2d; background: white; font-size: 12px; font-weight: 700; }

.readiness { background: var(--paper); }
.readiness-layout { display: grid; grid-template-columns: .62fr 1.38fr; gap: 80px; }
.readiness-layout > div:first-child > p { color: var(--muted); }
.readiness-grid { display: grid; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.readiness-grid article { min-height: 175px; padding: 23px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: white; }
.readiness-grid b { color: var(--teal); }
.readiness-grid p { margin: 22px 0 0; color: var(--muted); font-size: 12px; }
.privacy-note { margin-top: 20px; padding: 22px; border-left: 4px solid var(--gold); background: var(--gold-soft); }
.privacy-note p { margin: 5px 0 0; color: #765f38; font-size: 12px; }

.references { color: white; background: var(--deep); }
.references .section-label { color: var(--gold); }
.reference-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 80px; }
.reference-layout > div:first-child > p { color: rgba(255,255,255,.52); }
.reference-list { border-top: 1px solid rgba(255,255,255,.14); }
.reference-list a { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.14); text-decoration: none; }
.reference-list b { color: var(--gold); }
.reference-list span { color: rgba(255,255,255,.63); }

.faq { background: var(--paper); }
.faq-layout { display: grid; grid-template-columns: .5fr 1.5fr; gap: 85px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
summary { position: relative; padding: 22px 42px 22px 0; cursor: pointer; font-weight: 700; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 8px; top: 18px; color: var(--teal); font-size: 24px; }
details[open] summary::after { content: "−"; }
details p { padding-right: 45px; color: var(--muted); }

footer { padding: 47px 0 28px; color: rgba(255,255,255,.64); background: var(--deep-2); }
.footer-main { display: grid; grid-template-columns: 1.25fr 1.5fr 1fr .8fr; gap: 28px; }
.footer-main strong { color: white; font-family: Georgia,serif; font-size: 21px; letter-spacing: .1em; }
.footer-main span { color: rgba(255,255,255,.38); font-size: 11px; letter-spacing: .1em; }
.footer-main p { margin: 5px 0 0; font-size: 12px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 28px; margin-top: 32px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.11); font-size: 11px; }
.footer-bottom p { margin: 0; }

@media (max-width: 980px) {
  nav { display:none; }
  .hero-layout, .definition-layout, .objects-layout, .controls-layout, .system-layout, .reference-layout, .faq-layout, .readiness-layout { grid-template-columns: 1fr; }
  .hero-layout { min-height:auto; padding-block: 75px; }
  .asset-map { max-width:650px; width:100%; }
  .scope-grid, .steps { grid-template-columns: repeat(2,1fr); }
  .ledger-grid { grid-template-columns: repeat(2,1fr); }
  .objects-copy { position:static; }
  .footer-main { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 640px) {
  .wrap { width:min(100% - 28px,1180px); }
  .header-inner { min-height:66px; }
  .status { display:none; }
  h1 { font-size:43px; }
  .actions .button { width:100%; }
  .asset-map { min-height:450px; transform:scale(.83); transform-origin:center; }
  .capability-strip { grid-template-columns:1fr; }
  .capability-strip span + span { border-top:1px solid rgba(255,255,255,.12); border-left:0; }
  .section { padding-block:74px; }
  .scope-grid, .steps, .object-list, .control-grid, .ledger-grid, .readiness-grid { grid-template-columns:1fr; }
  .control-grid article:last-child { grid-column:auto; }
  .board-row { grid-template-columns:1fr; gap:4px; }
  .role-row, .role-row.head { grid-template-columns:1fr; }
  .role-row.head span:not(:first-child) { display:none; }
  .reference-list a { grid-template-columns:1fr; gap:4px; }
  .footer-main { grid-template-columns:1fr; }
  .footer-bottom { flex-direction:column; }
}
@media (prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } *,*::before,*::after { transition:none !important; } }