/* Shared visual language: one canvas, open sections, a single alignment rhythm. */
:root {
  color-scheme: light;
  --ink: #123d62; --muted: #456983; --blue: #216cba;
  --line: rgba(29,85,127,.24); --paper: #f1f8fc; --ok: #267057;
  --art: 'Michroma','Clemii Wide UI','Bahnschrift','Microsoft YaHei',sans-serif;
  --sans: 'Clemii Sans UI',-apple-system,BlinkMacSystemFont,'Segoe UI','Microsoft YaHei',sans-serif;
  --mono: Consolas,'Clemii Sans UI','SFMono-Regular',monospace;
  --page-width: 1280px; --page-gutter: clamp(24px,5.5vw,88px);
}
* { box-sizing: border-box; }
html { min-width: 0; }
body { position: relative; margin: 0; min-height: 100svh; color: var(--ink); background: var(--paper); font: 14px/1.6 var(--sans); isolation: isolate; }
button,input { font: inherit; }
button { color: inherit; cursor: pointer; }
button:disabled { cursor: default; opacity: .55; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--blue); }
a:focus-visible,button:focus-visible,input:focus-visible { outline: 2px solid var(--blue); outline-offset: 5px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: fixed; left: 20px; top: -100px; z-index: 20; padding: 10px 20px; background: white; }
.skip:focus { top: 15px; }
.shell { width: min(var(--page-width),calc(100% - var(--page-gutter)*2)); margin: 0 auto; min-height: 100svh; display: flex; flex-direction: column; }
.site-head { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.wordmark { font: 400 10px/1.5 var(--art); letter-spacing: 1.5px; }
.wordmark span { color: var(--muted); }
.clock { font: 400 17px/1 var(--art); letter-spacing: -.5px; }
.eyebrow,.section-label { font: 400 10px/1.5 var(--mono); letter-spacing: 2px; color: var(--muted); margin: 0; }
.section-label { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.section-label span { color: var(--blue); letter-spacing: 0; }
.site-foot { margin-top: auto; padding: 24px 0 30px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 18px; font: 10px/1.6 var(--mono); color: var(--muted); letter-spacing: 1px; }
.site-foot a { font-family: var(--sans); letter-spacing: 0; }
@media(max-width:700px) {
  .site-head { min-height: 72px; }
  .wordmark { font-size: 8px; letter-spacing: .7px; }
  .clock { font-size: 13px; }
  .site-foot { flex-wrap: wrap; font-size: 9px; padding-bottom: max(24px,env(safe-area-inset-bottom)); }
}
@media(prefers-reduced-motion:reduce) { *,*::before,*::after { scroll-behavior:auto !important; transition:none !important; } }