:root { color-scheme: light; font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; color: #17231f; background: #f4f7f5; }
main { width: min(760px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0 72px; }
nav { display: flex; align-items: center; justify-content: space-between; margin-bottom: 52px; }
nav a { color: #087d6d; text-decoration: none; font-weight: 700; }
.brand { color: #17231f; font-size: 18px; }
article { padding: clamp(24px, 5vw, 52px); border: 1px solid #d8e2de; background: #fff; border-radius: 8px; box-shadow: 0 18px 50px rgba(21, 60, 50, .08); }
h1 { margin: 0; font-size: clamp(30px, 6vw, 46px); line-height: 1.2; letter-spacing: 0; }
.updated { margin: 12px 0 36px; color: #71807b; font-size: 14px; }
h2 { margin: 34px 0 10px; font-size: 20px; letter-spacing: 0; }
p, li { color: #4d5c57; font-size: 15px; line-height: 1.8; }
ul { padding-left: 22px; }
.contact { margin-top: 36px; padding-top: 20px; border-top: 1px solid #e3e9e6; }
@media (max-width: 520px) { main { padding-top: 24px; } nav { margin-bottom: 28px; } article { padding: 24px 20px; } }