* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: var(--canvas);
  color: var(--ink-950);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
[hidden] { display: none !important; }
.page-main { min-height: calc(100vh - 170px); }
.container { width: min(960px, calc(100% - 40px)); margin-inline: auto; }
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 9999;
  padding: 9px 13px;
  border-radius: 8px;
  background: var(--ink-950);
  color: #fff;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform .16s ease;
}
.skip-link:focus { transform: none; }
:focus-visible { outline: 3px solid rgba(36, 93, 134, .25); outline-offset: 2px; }
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}