:root{color-scheme:light;font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:#17312d;background:#f7faf9}*{box-sizing:border-box}body{margin:0;border-top:6px solid #147d64}main{max-width:860px;margin:0 auto;padding:48px 24px 64px}header{border-bottom:1px solid #d4e2dc;padding-bottom:24px;margin-bottom:32px}h1{font-size:clamp(1.8rem,5vw,2.7rem);line-height:1.3;margin:0 0 12px;letter-spacing:.02em}h2{font-size:1.3rem;margin:32px 0 12px}p,li{font-size:1rem;line-height:1.9;overflow-wrap:anywhere}a{color:#08644e;text-underline-offset:.2em}a:focus-visible{outline:3px solid #dba916;outline-offset:4px}.meta,footer{color:#506b62;font-size:.9rem;line-height:1.8}nav{display:flex;flex-wrap:wrap;gap:16px 24px;margin:28px 0}footer{border-top:1px solid #d4e2dc;margin-top:40px;padding-top:20px}@media(max-width:500px){main{padding:32px 20px 48px}}