*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;background:#f2f7f6;color:#1e2f2b;line-height:1.75}
a{color:#17705f;text-decoration:none}
a:hover{color:#2aa387}
.wrap{max-width:920px;margin:0 auto;padding:0 22px}
nav{background:#fff;border-bottom:1px solid #dcebe7;position:sticky;top:0;z-index:10}
nav .wrap{display:flex;align-items:center;height:56px;gap:24px}
nav .logo{font-weight:700;font-size:17px;color:#0f3d36}
nav .logo span{color:#17705f}
nav a{color:#54655f;font-size:14.5px}
nav a:hover,nav a.active{color:#17705f}
header.hero{padding:72px 0 56px;background:linear-gradient(150deg,#0f3d36 0%,#17705f 60%,#2aa387 100%);text-align:center;color:#fff}
header.hero h1{font-size:36px}
header.hero p{margin-top:12px;color:#d9f3eb;font-size:16.5px}
main{padding:50px 0 40px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:20px}
.card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 2px 12px rgba(15,61,54,.08);transition:.25s}
.card:hover{transform:translateY(-3px)}
.card h3{font-size:16.5px;margin-bottom:8px;color:#17705f}
.card p{font-size:13.5px;color:#54655f}
section{margin-bottom:46px}
h2.sec{font-size:22px;margin-bottom:8px;color:#0f3d36}
h2.sec small{font-size:13px;color:#7c8f89;font-weight:400;margin-left:10px;letter-spacing:1px}
p.desc{color:#54655f;margin-bottom:18px;font-size:14.5px}
article.doc{background:#fff;border-radius:12px;padding:30px 32px;box-shadow:0 2px 12px rgba(15,61,54,.08)}
article.doc h1{font-size:24px;color:#0f3d36;margin-bottom:6px}
article.doc h2{font-size:18px;color:#17705f;margin:26px 0 10px;padding-top:14px;border-top:1px dashed #dcebe7}
article.doc p,article.doc li{font-size:14.5px;color:#33443e}
article.doc ul,article.doc ol{padding-left:22px;margin:8px 0 14px}
article.doc code{background:#e8f3f0;border-radius:4px;padding:2px 7px;font-size:13px;color:#0f6a5a;font-family:Consolas,Menlo,monospace}
pre{background:#0f3d36;border-radius:8px;padding:16px 18px;overflow-x:auto;margin:10px 0 16px}
pre code{background:none;padding:0;color:#d9f3eb;font-size:13px;line-height:1.6;font-family:Consolas,Menlo,monospace}
.tip{background:#e8f3f0;border-radius:8px;padding:12px 16px;font-size:13.5px;color:#17705f;margin:12px 0}
ul.list{list-style:none;padding:0}
ul.list li{padding:11px 0;border-bottom:1px dashed #dcebe7;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
ul.list li .t{color:#1e2f2b;font-size:14.5px}
ul.list li .m{color:#7c8f89;font-size:12.5px}
footer{border-top:1px solid #dcebe7;padding:24px 0;text-align:center;font-size:13px;color:#7c8f89}
.crumb{font-size:13px;color:#7c8f89;margin-bottom:16px}