:root {
  color-scheme: light;
  --paper: #fffaf0;
  --paper-deep: #f3ead6;
  --ink: #211f1b;
  --muted: #615d54;
  --line: #2d2a24;
  --accent: #127c74;
  --accent-soft: #d8eee9;
  --warning: #8a471f;
  --max-width: 74rem;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper-deep);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.template-banner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 0.75rem;
  width: 100%;
  margin: 0;
  padding: 0.65rem 1rem;
  border-bottom: 0.15rem solid #5d2b14;
  color: #fffaf0;
  background: #8a471f;
  font-size: 0.9rem;
  line-height: 1.45;
  text-align: center;
}

.template-banner strong {
  white-space: nowrap;
}

a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 0.14em;
}

a:focus-visible {
  outline: 0.2rem solid var(--accent);
  outline-offset: 0.2rem;
}

.site-header,
.site-footer,
main {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
  border-bottom: 0.15rem solid var(--line);
}

.brand {
  color: var(--ink);
  font-size: 1.2rem;
  font-weight: 800;
  text-decoration: none;
}

.site-nav,
.language-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  align-items: center;
}

.site-nav a,
.language-nav a {
  font-weight: 700;
}

main {
  padding-block: 2.5rem 4rem;
}

.hero,
.language-block,
.notice {
  border: 0.12rem solid var(--line);
  background: #fffdf8;
  box-shadow: 0.4rem 0.4rem 0 var(--accent-soft);
}

.hero {
  padding: clamp(1.5rem, 4vw, 3rem);
  margin-bottom: 2rem;
}

.hero h1 {
  max-width: 22ch;
  margin: 0 0 0.8rem;
  font-size: clamp(2rem, 7vw, 4.2rem);
  line-height: 1.08;
}

.hero p {
  max-width: 66ch;
  margin: 0.5rem 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.language-block {
  padding: clamp(1.25rem, 3vw, 2.25rem);
  margin-block: 1.5rem;
  scroll-margin-top: 1rem;
}

.language-block > h1,
.language-block > h2 {
  margin-top: 0;
  line-height: 1.2;
}

.language-block h2 {
  margin-top: 2.1rem;
  border-bottom: 0.08rem solid var(--paper-deep);
  padding-bottom: 0.35rem;
  line-height: 1.3;
}

.language-block h3 {
  margin-top: 1.5rem;
  line-height: 1.35;
}

.language-block p,
.language-block li {
  max-width: 78ch;
}

.language-block li + li {
  margin-top: 0.45rem;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin-block: 1.5rem;
}

.summary-card {
  padding: 1.1rem;
  border: 0.1rem solid var(--line);
  background: var(--accent-soft);
}

.summary-card h2,
.summary-card h3 {
  margin-top: 0;
}

.button-link {
  display: inline-block;
  margin: 0.4rem 0.5rem 0.4rem 0;
  padding: 0.62rem 0.9rem;
  border: 0.12rem solid var(--line);
  color: var(--ink);
  background: #f7ce58;
  font-weight: 800;
  text-decoration: none;
}

.notice {
  padding: 1rem 1.2rem;
  margin-block: 1.5rem;
  border-left-width: 0.45rem;
  color: var(--warning);
  box-shadow: none;
}

.meta {
  color: var(--muted);
  font-size: 0.94rem;
}

code {
  padding: 0.1rem 0.25rem;
  background: var(--paper-deep);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

.site-footer {
  padding-block: 1.5rem 2.5rem;
  border-top: 0.12rem solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer p {
  margin: 0.35rem 0;
}

@media (max-width: 40rem) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  main {
    padding-top: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

@media print {
  html,
  body {
    background: #fff;
  }

  .site-nav,
  .language-nav,
  .button-link {
    display: none;
  }

  .hero,
  .language-block,
  .notice {
    border-color: #777;
    box-shadow: none;
  }
}