:root {
  --paper: oklch(95.5% 0.018 87);
  --paper-light: oklch(98% 0.012 87);
  --ink: oklch(22% 0.035 238);
  --ink-soft: oklch(42% 0.028 238);
  --line: oklch(76% 0.026 82);
  --signal: oklch(57% 0.18 32);
  --display: "Avenir Next Condensed", "DIN Condensed", "Arial Narrow", sans-serif;
  --body: "Avenir Next", "Noto Sans", "PingFang SC", "Microsoft YaHei UI", sans-serif;
  --serif: "Iowan Old Style", "Noto Serif", "Songti SC", Georgia, serif;
}

* { box-sizing: border-box; }
html { color-scheme: light; scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; color: var(--ink); background: var(--paper); font-family: var(--body); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
.skip-link { position: fixed; z-index: 10; top: 8px; left: 8px; padding: 8px 12px; color: var(--paper-light); background: var(--ink); transform: translateY(-150%); }
.skip-link:focus { transform: none; }

.site-header { min-height: 78px; display: flex; justify-content: space-between; align-items: center; gap: 28px; padding: 12px max(24px, calc((100vw - 1180px) / 2)); border-bottom: 1px solid var(--ink); }
.brand { display: flex; align-items: center; gap: 12px; line-height: 1; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; color: var(--paper-light); background: var(--signal); font-family: var(--display); font-weight: 900; }
.brand > span:last-child { display: grid; gap: 6px; }
.brand strong, .brand small { font-family: var(--display); letter-spacing: .11em; }
.brand strong { font-size: .83rem; }
.brand small { color: var(--ink-soft); font-size: .58rem; }
.language-switcher { position: relative; z-index: 4; }
.language-menu { position: relative; }
.language-menu summary { min-width: 190px; min-height: 44px; display: grid; grid-template-columns: 22px 24px 1fr 14px; gap: 8px; align-items: center; padding: 8px 11px; border: 1px solid var(--ink); background: var(--paper); cursor: pointer; font-family: var(--display); font-size: .74rem; font-weight: 800; letter-spacing: .04em; list-style: none; }
.language-menu summary::-webkit-details-marker { display: none; }
.language-menu summary:hover, .language-menu summary:focus-visible, .language-menu[open] summary { color: var(--signal); border-color: var(--signal); outline: 0; }
.language-globe { width: 22px; height: 22px; display: grid; place-items: center; color: var(--paper-light); border-radius: 50%; background: var(--ink); font-family: var(--display); font-size: .72rem; }
.language-flag { font-size: 1rem; line-height: 1; }
.language-chevron { justify-self: end; font-size: 1rem; transition: transform 160ms ease-out; }
.language-menu[open] .language-chevron { transform: rotate(180deg); }
.language-options { position: absolute; top: calc(100% + 8px); right: 0; min-width: 238px; padding: 6px; border: 1px solid var(--ink); background: var(--paper-light); box-shadow: 7px 7px 0 var(--ink); }
.language-options::before { content: ""; position: absolute; top: -5px; right: 26px; width: 8px; height: 8px; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); background: var(--paper-light); transform: rotate(45deg); }
.language-options a { position: relative; display: grid; grid-template-columns: 28px 1fr auto; gap: 10px; align-items: center; min-height: 42px; padding: 7px 10px; border-bottom: 1px solid var(--line); font-size: .78rem; }
.language-options a:last-child { border-bottom: 0; }
.language-options a:hover, .language-options a:focus-visible { color: var(--paper-light); background: var(--ink); outline: 0; }
.language-options a[aria-current="page"] { color: var(--signal); }
.language-options a[aria-current="page"]::before { content: ""; position: absolute; left: -6px; width: 4px; height: 20px; background: var(--signal); }
.language-options small { color: var(--ink-soft); font-family: var(--display); font-size: .58rem; font-weight: 800; letter-spacing: .12em; }
.language-options a:hover small, .language-options a:focus-visible small { color: var(--line); }

main { width: min(calc(100% - 48px), 1180px); margin-inline: auto; }
.hero { position: relative; min-height: min(760px, calc(100vh - 78px)); display: grid; align-content: center; padding: clamp(5rem, 11vw, 9rem) 0; border-bottom: 1px solid var(--ink); }
.route-line { position: absolute; top: 0; right: 0; bottom: 0; width: 11px; border-inline: 1px solid var(--line); }
.route-line span { position: absolute; right: -5px; width: 9px; height: 9px; border: 2px solid var(--paper); border-radius: 50%; background: var(--signal); }
.route-line span:nth-child(1) { top: 22%; }.route-line span:nth-child(2) { top: 50%; }.route-line span:nth-child(3) { top: 78%; }
.eyebrow { margin: 0 0 24px; color: var(--signal); font-family: var(--display); font-size: .72rem; font-weight: 800; letter-spacing: .16em; }
h1 { max-width: 980px; margin: 0; font-family: var(--serif); font-size: clamp(3.8rem, 10vw, 8.7rem); letter-spacing: -.055em; line-height: .86; }
h1 span { display: block; margin-top: .2em; color: var(--signal); font-family: var(--display); font-size: .42em; letter-spacing: .01em; line-height: 1; }
.lead { max-width: 730px; margin: 34px 0 0; color: var(--ink-soft); font-size: clamp(1rem, 1.6vw, 1.18rem); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; padding: 0 20px; border: 1px solid var(--ink); font-weight: 750; }
.button-primary { color: var(--paper-light); border-color: var(--signal); background: var(--signal); }
.button-primary:hover { background: var(--ink); border-color: var(--ink); }
.button-disabled { color: var(--ink-soft); border-color: var(--line); background: repeating-linear-gradient(135deg, var(--paper-light), var(--paper-light) 8px, var(--paper) 8px, var(--paper) 16px); cursor: not-allowed; }
.button-disabled:hover { color: var(--ink-soft); border-color: var(--line); background: repeating-linear-gradient(135deg, var(--paper-light), var(--paper-light) 8px, var(--paper) 8px, var(--paper) 16px); }
.button-secondary:hover { color: var(--paper-light); background: var(--ink); }
.status-board { width: min(100%, 560px); display: grid; gap: 4px; margin-top: 52px; padding: 18px 22px; color: var(--paper-light); background: var(--ink); }
.status-board small { color: var(--line); font-family: var(--display); font-size: .62rem; letter-spacing: .14em; }
.status-board strong { font-family: var(--display); font-size: clamp(1.1rem, 2.3vw, 1.65rem); letter-spacing: .04em; }

.facts { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--ink); }
.fact { display: grid; gap: 7px; padding: 24px; border-right: 1px solid var(--ink); }
.fact:last-child { border-right: 0; }
.fact small { color: var(--ink-soft); font-size: .7rem; }
.fact strong { font-family: var(--display); letter-spacing: .05em; }
.process { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(3rem, 9vw, 9rem); padding: clamp(5rem, 10vw, 9rem) 0; }
.process-heading p { margin: 0 0 18px; color: var(--signal); font-family: var(--display); font-size: .68rem; font-weight: 800; letter-spacing: .14em; }
h2 { max-width: 560px; margin: 0; font-family: var(--serif); font-size: clamp(2.3rem, 5vw, 4.4rem); line-height: 1.08; }
.process ol { margin: 0; padding: 0; list-style: none; counter-reset: route; border-top: 1px solid var(--ink); }
.process li { display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--line); counter-increment: route; }
.process li::before { content: counter(route, decimal-leading-zero); width: 42px; height: 42px; display: grid; place-items: center; color: var(--paper-light); border-radius: 50%; background: var(--signal); font-family: var(--display); font-size: .7rem; font-weight: 800; }
.process li div { display: grid; gap: 6px; }
.process li strong { font-family: var(--serif); font-size: 1.2rem; }
.process li p { margin: 0; color: var(--ink-soft); }
footer { display: grid; grid-template-columns: 1fr 2fr; gap: 28px; align-items: center; padding: 34px max(24px, calc((100vw - 1180px) / 2)); color: var(--line); background: var(--ink); font-size: .75rem; }
footer strong { color: var(--paper-light); font-family: var(--display); letter-spacing: .1em; }
footer p { margin: 0; }

@media (max-width: 720px) {
  .site-header { align-items: flex-start; }
  .brand small { display: none; }
  .language-menu summary { min-width: 0; grid-template-columns: 22px 24px 14px; }
  .language-menu summary > span:nth-child(3) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .language-options { min-width: min(238px, calc(100vw - 32px)); }
  main { width: min(calc(100% - 32px), 1180px); }
  .hero { min-height: auto; padding-block: 5rem; }
  .route-line { display: none; }
  h1 { font-size: clamp(3.25rem, 16vw, 5.5rem); }
  .actions { display: grid; }
  .button { width: 100%; }
  .facts { grid-template-columns: 1fr; }
  .fact { padding-inline: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .fact:last-child { border-bottom: 0; }
  .process { grid-template-columns: 1fr; }
  footer { grid-template-columns: 1fr; text-align: center; }
}