:root{color-scheme:light;font-family:"Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;color:#153e32;background:#f5f8f6;font-synthesis:none;}
*{box-sizing:border-box;}
body{margin:0;line-height:1.75;}
main{max-width:900px;margin:auto;padding:28px 28px 36px;}
nav{display:flex;justify-content:space-between;align-items:center;margin-bottom:44px;gap:16px;}
a{color:#167758;text-underline-offset:4px;}
nav a{text-decoration:none;font-weight:600;}
nav a:first-child{font-size:22px;color:#153e32;}
header{text-align:center;padding:12px 28px 38px;}
.mark{display:grid;place-items:center;width:68px;height:68px;border:1px solid #c3e3d5;background:#eaf5ee;border-radius:19px;margin:0 auto 18px;color:#07836a;}
.mark svg{width:34px;height:34px;}
.eyebrow{font-size:14px;color:#42765f;margin:0 0 12px;}
h1{font-size:38px;line-height:1.45;letter-spacing:.02em;margin:0 0 18px;}
.intro{max-width:580px;margin:0 auto 24px;color:#617168;font-size:16px;}
.download{display:inline-flex;justify-content:center;align-items:center;padding:12px 26px;border:1px solid #126747;border-radius:12px;background:#167758;color:white;text-decoration:none;font-weight:600;font-size:16px;}
.download:hover{background:#105b42;}
a:focus-visible{outline:3px solid #6aa78c;outline-offset:4px;}
.hint{font-size:13px;color:#718079;margin:12px 0 0;}
section{background:#fff;border:1px solid #dce8e0;border-radius:18px;padding:26px 30px;margin:18px 0;}
h2{font-size:21px;margin:0 0 22px;}
.steps{list-style:none;counter-reset:step;margin:0;padding:0;display:grid;gap:24px;}
.steps li{counter-increment:step;position:relative;padding-left:48px;}
.steps li:before{content:counter(step);position:absolute;left:0;top:0;display:grid;place-items:center;background:#edf6f0;color:#197457;border-radius:10px;width:32px;height:32px;font-weight:700;}
h3{font-size:16px;margin:0 0 5px;}
section p{font-size:14px;color:#5b6f63;margin:0;}
code{font-family:Consolas,monospace;font-size:13px;background:#f0f4f1;padding:2px 5px;border-radius:4px;overflow-wrap:anywhere;}
.notes p+p{margin-top:12px;}
.notes h2{margin-bottom:14px;}
footer{text-align:center;font-size:12px;color:#758079;margin-top:30px;}
footer p{margin:8px 0;}
@media(max-width:600px){main{padding:20px 16px;}header{padding:6px 0 24px;}h1{font-size:28px;}section{padding:22px 18px;}nav{margin-bottom:24px;}}