:root {
  --ink: #18232d;
  --muted: #6d7983;
  --line: #dce2e5;
  --paper: #f4f6f8;
  --white: #ffffff;
  --teal: #188f8a;
  --orange: #e56e4f;
  --yellow: #c28a20;
  --blue: #3d72a8;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--orange); }

.wrap { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }

.notice { background: var(--ink); color: #e9eef0; font-size: 12px; }
.notice-inner { display: flex; align-items: center; gap: 10px; min-height: 34px; }
.notice a { color: #f2b58e; margin-left: auto; }
.notice-dot { width: 6px; height: 6px; border-radius: 50%; background: #61c2a5; }

.site-header { border-bottom: 1px solid var(--line); background: rgba(244, 246, 248, .94); }
.nav-row { display: flex; align-items: center; min-height: 76px; gap: 42px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 800; letter-spacing: 2px; }
.brand img { display: block; }
.main-nav { display: flex; align-items: center; gap: 26px; font-size: 14px; color: var(--muted); }
.main-nav a { padding: 27px 0 24px; border-bottom: 2px solid transparent; }
.main-nav a.active { color: var(--ink); border-color: var(--orange); }
.header-link { margin-left: auto; color: var(--muted); font-size: 13px; }

.intro { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(340px, .9fr); gap: 70px; align-items: center; padding-top: 92px; padding-bottom: 86px; }
.kicker { margin: 0 0 14px; color: var(--teal); font-size: 11px; font-weight: 800; letter-spacing: 1.8px; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 650px; margin-bottom: 22px; font-size: clamp(42px, 5vw, 70px); line-height: 1.04; font-weight: 760; letter-spacing: 0; }
h1 em { color: var(--orange); font-style: normal; }
.lede { max-width: 560px; margin-bottom: 30px; color: var(--muted); font-size: 17px; }
.search { display: flex; max-width: 570px; border: 1px solid #cfd8dc; background: var(--white); box-shadow: 0 8px 24px rgba(24, 35, 45, .06); }
.search input { min-width: 0; flex: 1; border: 0; outline: 0; padding: 15px 17px; background: transparent; color: var(--ink); font: inherit; }
.search input::placeholder { color: #9aa4ab; }
.search button { border: 0; padding: 0 22px; background: var(--orange); color: var(--white); font: inherit; font-weight: 700; cursor: pointer; }
.search button:hover { background: #cf5e42; }
.search-status { min-height: 24px; padding-top: 8px; color: var(--muted); font-size: 12px; }

.intro-art { position: relative; min-height: 360px; border: 1px solid var(--line); overflow: hidden; background: #e9eef0; }
.intro-art::before, .intro-art::after { content: ""; position: absolute; background: var(--line); }
.intro-art::before { width: 1px; top: 0; bottom: 0; left: 50%; }
.intro-art::after { height: 1px; left: 0; right: 0; top: 50%; }
.orbit { position: absolute; border: 1px solid #a9b9bd; border-radius: 50%; left: 50%; top: 50%; transform: translate(-50%, -50%) rotate(-28deg); }
.orbit-one { width: 270px; height: 138px; }
.orbit-two { width: 138px; height: 270px; transform: translate(-50%, -50%) rotate(-28deg); border-color: #c6a989; }
.art-core { position: absolute; left: 50%; top: 50%; display: grid; place-items: center; width: 78px; height: 78px; transform: translate(-50%, -50%); border-radius: 50%; background: var(--ink); color: #f5c6a5; font-size: 32px; font-weight: 800; }
.art-label { position: absolute; color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: 1.2px; }
.label-one { top: 56px; left: 28px; }.label-two { right: 28px; top: 56px; }.label-three { left: 28px; bottom: 55px; }
.art-point { position: absolute; width: 10px; height: 10px; border-radius: 50%; }
.point-one { left: 19%; top: 33%; background: var(--teal); }.point-two { right: 20%; top: 31%; background: var(--orange); }.point-three { left: 24%; bottom: 26%; background: var(--yellow); }

.quick-links { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.quick-links a { display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 14px; min-height: 70px; padding: 0 18px 0 0; border-right: 1px solid var(--line); font-size: 14px; font-weight: 700; }
.quick-links a + a { padding-left: 18px; }.quick-links a:last-child { border-right: 0; }
.quick-number { color: var(--orange); font-size: 11px; font-weight: 800; }.arrow { color: var(--orange); font-size: 17px; }

.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 72px; padding-top: 88px; padding-bottom: 95px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 26px; }
.section-heading.compact { display: block; margin-bottom: 17px; }
h2 { margin-bottom: 0; font-size: 30px; line-height: 1.15; letter-spacing: 0; }
.text-link { color: var(--orange); font-size: 13px; font-weight: 750; white-space: nowrap; }
.guide-list { border-top: 1px solid var(--line); }
.guide-item { display: grid; grid-template-columns: 42px minmax(0, 1fr) 24px; gap: 22px; align-items: start; padding: 26px 0; border-bottom: 1px solid var(--line); }
.guide-index { padding-top: 5px; color: var(--orange); font-size: 12px; font-weight: 800; }
.guide-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 9px; color: var(--muted); font-size: 11px; }
.tag { padding: 3px 7px; border: 1px solid currentColor; font-size: 10px; font-weight: 800; letter-spacing: 1px; }
.tag.teal { color: var(--teal); }.tag.orange { color: var(--orange); }.tag.yellow { color: var(--yellow); }.tag.blue { color: var(--blue); }
h3 { margin-bottom: 8px; font-size: 20px; line-height: 1.25; }
.guide-body p { max-width: 660px; margin-bottom: 0; color: var(--muted); font-size: 14px; }
.guide-arrow { padding-top: 2px; color: #99a5aa; font-size: 18px; }

.side-column { border-left: 1px solid var(--line); padding-left: 28px; }
.collection-list { border-top: 1px solid var(--line); }
.collection-list a { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--line); color: var(--ink); font-size: 13px; }
.collection-list a span:last-child { color: var(--muted); font-variant-numeric: tabular-nums; }
.index-card { margin-top: 50px; padding: 24px; background: var(--ink); color: var(--white); }
.status-line { display: flex; align-items: center; gap: 8px; margin-bottom: 25px; color: #9bc4b8; font-size: 10px; font-weight: 800; letter-spacing: 1.4px; }
.status-pulse { width: 7px; height: 7px; border-radius: 50%; background: #69caa2; }
.index-card strong { display: block; margin-bottom: 17px; font-size: 22px; line-height: 1.2; }.index-card p { margin-bottom: 22px; color: #b7c1c5; font-size: 12px; }.index-card .text-link { color: #f2b58e; }

.updates-section { padding-bottom: 100px; }
.updated-date { color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: 1.3px; }
.updates-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); }
.update-item { position: relative; display: flex; flex-direction: column; min-height: 160px; padding: 21px 24px 22px 0; border-bottom: 1px solid var(--line); }
.update-item + .update-item { padding-left: 24px; border-left: 1px solid var(--line); }.update-date { margin-bottom: 21px; color: var(--teal); font-size: 10px; font-weight: 800; letter-spacing: 1.2px; }.update-item strong { max-width: 250px; font-size: 16px; line-height: 1.35; }.update-item .arrow { margin-top: auto; }

.site-footer { border-top: 1px solid var(--line); background: #e9eef0; }.footer-row { display: grid; grid-template-columns: 1.4fr 1fr auto; gap: 30px; align-items: end; min-height: 185px; padding-top: 35px; padding-bottom: 35px; }.footer-brand { margin-bottom: 12px; }.footer-row p { max-width: 260px; margin-bottom: 0; color: var(--muted); font-size: 13px; }.footer-links { display: flex; gap: 22px; color: var(--muted); font-size: 13px; }.copyright { color: var(--muted); font-size: 12px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.is-hidden { display: none; }

@media (max-width: 860px) {
  .intro { grid-template-columns: 1fr; gap: 40px; padding-top: 65px; padding-bottom: 65px; }.intro-art { min-height: 300px; max-width: 560px; }
  .content-grid { grid-template-columns: 1fr; gap: 55px; padding-top: 65px; padding-bottom: 70px; }.side-column { border-left: 0; padding-left: 0; }.side-column { display: grid; grid-template-columns: 1fr 1fr; gap: 35px; }.index-card { margin-top: 0; }
  .footer-row { grid-template-columns: 1fr 1fr; }.copyright { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .wrap { width: min(100% - 30px, 1160px); }.notice-inner { min-height: 42px; flex-wrap: wrap; gap: 6px; padding-top: 7px; padding-bottom: 7px; }.notice a { margin-left: 0; }
  .nav-row { min-height: 66px; gap: 18px; }.main-nav { gap: 14px; font-size: 12px; }.main-nav a { padding: 22px 0 20px; }.header-link { display: none; }
  h1 { font-size: 44px; }.lede { font-size: 15px; }.search input { padding-left: 13px; font-size: 14px; }.search button { padding: 0 15px; }
  .quick-links { grid-template-columns: 1fr; }.quick-links a, .quick-links a + a { min-height: 54px; padding: 0; border-right: 0; border-bottom: 1px solid var(--line); }.quick-links a:last-child { border-bottom: 0; }
  h2 { font-size: 26px; }.section-heading { align-items: start; }.guide-item { grid-template-columns: 28px minmax(0, 1fr); gap: 12px; }.guide-arrow { display: none; }.guide-item h3 { font-size: 18px; }
  .side-column { display: block; }.index-card { margin-top: 35px; }.updates-grid { grid-template-columns: 1fr; }.update-item, .update-item + .update-item { min-height: 125px; padding: 18px 0; border-left: 0; }.update-item .arrow { position: absolute; right: 0; bottom: 18px; }
  .footer-row { grid-template-columns: 1fr; gap: 24px; }.copyright { grid-column: auto; }
}