:root {
  color-scheme: light;
  --ink: #18312b;
  --muted: #61736d;
  --line: #dce7e1;
  --paper: #f7faf7;
  --green: #23624d;
  --soft: #e9f3ed;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.7 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--green); }
.wrap { width: min(900px, calc(100% - 36px)); margin: 0 auto; }
header { padding: 42px 0 28px; border-bottom: 1px solid var(--line); }
.brand { color: var(--green); font-size: 14px; font-weight: 750; letter-spacing: .09em; text-transform: uppercase; }
h1 { margin: 8px 0 4px; font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; letter-spacing: -.04em; }
.updated, .intro { color: var(--muted); }
nav { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 22px; }
nav a { font-size: 14px; font-weight: 650; text-decoration: none; }
main { padding: 32px 0 60px; }
h2 { margin: 32px 0 8px; font-size: 1.25rem; letter-spacing: -.02em; }
h3 { margin: 22px 0 6px; font-size: 1.05rem; }
p, ul { margin: 8px 0 14px; }
li { margin: 5px 0; }
.notice { padding: 16px 18px; border: 1px solid #d8c88d; border-radius: 12px; background: #fff9e6; color: #4e4528; }
.contact { padding: 20px; border-radius: 16px; background: var(--soft); }
.action { display: inline-block; padding: 10px 16px; border-radius: 10px; background: var(--green); color: white; font-weight: 700; text-decoration: none; }
.lang { margin-top: 44px; padding-top: 24px; border-top: 2px solid var(--line); }
footer { padding: 20px 0 34px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
footer a { margin-right: 14px; }
@media (max-width: 560px) { header { padding-top: 28px; } main { padding-top: 20px; } }