:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #14221d;
  background: #eef3f0;
  line-height: 1.65;
}
* { box-sizing: border-box; }
body { margin: 0; }
header { background: #10231c; color: white; padding: 1.2rem clamp(1rem, 5vw, 4rem); }
header a { color: white; text-decoration: none; }
header h1 { margin: 0; font-size: clamp(1.4rem, 3vw, 2rem); }
main { max-width: 900px; margin: 1.2rem auto; padding: 0 1rem; }
article { background: white; border-radius: 16px; box-shadow: 0 3px 16px rgba(20,40,32,.08); padding: clamp(1rem, 4vw, 2rem); }
h2 { margin-top: 1.8rem; }
h2:first-child { margin-top: 0; }
a { color: #176b4e; font-weight: 650; }
.notice { background: #f1faf6; border-left: 4px solid #2d8a64; padding: .8rem 1rem; border-radius: 8px; }
footer { max-width: 900px; margin: 0 auto; padding: 1rem; color: #66766e; }
footer nav { display: flex; flex-wrap: wrap; gap: 1rem; }