:root{color-scheme:light;--ink:#192e2a;--muted:#52665f;--green:#17674c;--line:#d8e3dc;--paper:#fafbf7}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.85 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}
a{color:var(--green);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible{outline:3px solid #db9d35;outline-offset:5px}
.wrap{max-width:1080px;margin:auto;padding:0 28px}header{border-bottom:1px solid var(--line)}.bar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:24px;padding-bottom:24px}
.brand{font-weight:750;font-size:21px;text-decoration:none;color:var(--ink)}nav{display:flex;gap:24px;flex-wrap:wrap}nav a{font-size:15px}nav a[aria-current=page]{font-weight:750}
.hero{padding:76px 0 42px;max-width:820px}.eyebrow{color:var(--green);font-size:13px;letter-spacing:2px;font-weight:750}h1{font-size:clamp(34px,5vw,58px);line-height:1.18;letter-spacing:-1.5px;margin:20px 0 24px}h2{font-size:25px;line-height:1.4;margin:34px 0 12px}h3{font-size:18px}.lead{font-size:20px;color:var(--muted);max-width:750px}.button{display:inline-block;padding:11px 22px;background:var(--green);color:white;border-radius:8px;text-decoration:none;margin-top:12px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:0 0 44px}.card{border:1px solid var(--line);border-radius:14px;background:white;padding:25px}.card strong{display:block;font-size:30px;color:var(--green)}.card p{margin:6px 0;color:var(--muted)}.note{background:#edf3ed;border-left:4px solid var(--green);padding:20px 24px;border-radius:0 8px 8px 0;margin:28px 0}
article{max-width:800px;margin:50px auto 70px}article h1{font-size:42px}p,li{overflow-wrap:anywhere}.meta,footer{font-size:14px;color:var(--muted)}code{background:#edf3ed;padding:2px 5px;border-radius:4px;overflow-wrap:anywhere}footer{border-top:1px solid var(--line);padding:25px 0 35px;margin-top:55px}.skip{position:absolute;left:12px;top:-100px;background:white;padding:8px;z-index:1}.skip:focus{top:8px}
@media(max-width:650px){.wrap{padding-left:20px;padding-right:20px}.bar{align-items:flex-start;flex-direction:column;gap:12px}nav{gap:18px}.hero{padding-top:42px}.cards{grid-template-columns:1fr;gap:12px}.card{padding:20px}article{margin-top:32px}article h1{font-size:34px}}