:root {
  --accent: #ff6b35;
  --text: #1f1f1f;
  --muted: #666;
  --line: #eee;
  --bg-soft: #fff7f2;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: #fff;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

header.site {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

header.site a {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 22px;
}

header.site img { width: 36px; height: 36px; border-radius: 8px; }

nav.lang {
  display: flex;
  gap: 12px;
  margin: 0 0 24px;
  padding: 10px 0;
  font-size: 14px;
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 10;
}

nav.lang a {
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 4px 14px;
  text-decoration: none;
}

h1 { font-size: 28px; line-height: 1.25; margin: 0 0 4px; }
h2 { font-size: 19px; margin: 32px 0 8px; }
h3 { font-size: 16px; margin: 20px 0 6px; }

a { color: var(--accent); }

.meta { color: var(--muted); font-size: 14px; margin: 0 0 24px; }

.lang-section { scroll-margin-top: 56px; }

.lang-section + .lang-section {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 2px solid var(--line);
}

.note {
  background: var(--bg-soft);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  border-radius: 6px;
  margin: 16px 0;
}

table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 8px 0; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }

ul { padding-left: 22px; }
li { margin: 4px 0; }

footer.site {
  margin-top: 64px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

footer.site a { color: var(--muted); }