:root {
  color: #17231b;
  background: #f4f7f4;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

* { box-sizing: border-box; }
body { margin: 0; background: #f4f7f4; }
main { width: min(100% - 32px, 760px); margin: 0 auto; padding: 40px 0 64px; }
header { border-bottom: 2px solid #16643a; padding-bottom: 22px; }
h1 { margin: 0; color: #123c27; font-size: 30px; line-height: 1.25; letter-spacing: 0; }
.meta { margin: 12px 0 0; color: #55705e; font-size: 14px; line-height: 1.8; }
.notice { margin: 24px 0; border-left: 4px solid #16643a; background: #e8f2ea; padding: 14px 16px; line-height: 1.75; }
section { margin-top: 28px; }
h2 { margin: 0 0 12px; color: #123c27; font-size: 20px; line-height: 1.4; letter-spacing: 0; }
p, li { color: #273c2e; font-size: 16px; line-height: 1.85; }
p { margin: 10px 0; }
ul, ol { margin: 8px 0; padding-left: 24px; }
li + li { margin-top: 6px; }
a { color: #0f6237; overflow-wrap: anywhere; }
footer { margin-top: 40px; border-top: 1px solid #cdd9cf; padding-top: 18px; color: #5e7163; font-size: 14px; line-height: 1.8; }

@media (max-width: 480px) {
  main { width: min(100% - 24px, 760px); padding-top: 26px; }
  h1 { font-size: 25px; }
  h2 { font-size: 18px; }
  p, li { font-size: 15px; }
}