:root {
  color-scheme: light dark;
  --paper: #eceee6;
  --panel: #f5f6f1;
  --ink: #1e2433;
  --muted: #50596a;
  --line: #c4c9bd;
  --accent: #704807;
  --focus: #3d5a80;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #161b27;
    --panel: #1f2533;
    --ink: #dce0e8;
    --muted: #b1b9c8;
    --line: #485369;
    --accent: #edbd67;
    --focus: #a5c5ef;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.85;
  overflow-wrap: anywhere;
}
a { color: var(--accent); text-underline-offset: 0.22em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
.site-header, .site-footer {
  width: min(100% - 3rem, 70rem);
  margin-inline: auto;
  padding-block: 1.5rem;
}
.site-header { border-bottom: 1px solid var(--line); }
.brand { color: var(--ink); font-size: 1.35rem; font-weight: 700; text-decoration: none; }
.brand span { margin-left: 0.35em; font-size: 0.8em; letter-spacing: 0.12em; }
nav { display: flex; flex-wrap: wrap; gap: 0.3rem 1.35rem; margin-top: 0.9rem; }
nav a { padding-block: 0.3rem; font-size: 0.9rem; }
nav a[aria-current="page"] { color: var(--ink); font-weight: 700; }
main { width: min(100% - 3rem, 48rem); margin: 3rem auto 4rem; }
h1, h2, h3 { line-height: 1.4; text-wrap: balance; }
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); margin: 0 0 1.2rem; letter-spacing: 0.02em; }
h2 { font-size: 1.4rem; margin-top: 2.7rem; }
h3 { font-size: 1.15rem; margin-top: 2rem; }
p { margin-block: 1.15rem; }
.eyebrow { color: var(--muted); font-size: 0.85rem; letter-spacing: 0.12em; }
.lead { font-size: 1.2rem; line-height: 1.8; }
.features { padding-left: 1.4rem; }
.features li { margin-block: 1rem; padding-left: 0.3rem; }
.language-links { padding-block: 0.75rem; border-block: 1px solid var(--line); }
section[lang="en"] { border-top: 1px solid var(--line); margin-top: 3rem; }
section { scroll-margin-top: 1rem; }
.action { display: inline-block; padding: 0.6rem 1rem; margin-right: 1rem; background: var(--panel); border: 1px solid var(--line); border-radius: 0.4rem; }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
.site-footer p { margin: 0 0 0.3rem; }
.skip-link { position: absolute; top: -10rem; left: 1rem; padding: 0.75rem 1rem; background: var(--panel); }
.skip-link:focus { top: 1rem; }
@media (max-width: 36rem) {
  main, .site-header, .site-footer { width: calc(100% - 2rem); }
  main { margin-block: 2rem 3rem; }
  nav { gap: 0.3rem 1rem; }
}
@media print {
  :root { --paper: white; --ink: black; --muted: #333; --accent: black; }
  nav, .skip-link, .language-links { display: none; }
  main { width: 100%; margin: 1rem 0; }
  h2, h3 { break-after: avoid; }
}