body { margin: 0; background: #f4f6f1; color: #12312b; font: 16px/1.6 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 20px 64px; }
h1 { font-size: 32px; line-height: 1.2; margin: 8px 0; }
h2 { font-size: 20px; margin: 32px 0 8px; }
a { color: #1f5d4e; }
.back { margin: 0; font-weight: 600; }
.date { color: #5c6f69; margin-top: 0; }
.notice { background: #fff; border-left: 4px solid #c1121f; border-radius: 6px; padding: 14px 16px; margin: 20px 0; }
li { margin-bottom: 8px; }