:root{
  --primary:#2E7D32; --primary-surface:#E8F5E9; --bg:#F8FAF7; --surface:#fff;
  --text:#1B1B1B; --text-soft:#5b6470; --border:#E5E7EB;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:780px;margin:0 auto;padding:0 24px}
header.lhead{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
.lhead .row{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;font-size:20px;letter-spacing:-.5px}
.back{font-size:14px;font-weight:600}
main{padding:48px 0 64px}
.kicker{color:var(--primary);font-weight:700;text-transform:uppercase;letter-spacing:.4px;font-size:12.5px}
h1{font-size:38px;letter-spacing:-1px;font-weight:850;margin:8px 0 6px}
.updated{color:var(--text-soft);font-size:14px;margin-bottom:8px}
.intro{font-size:17px;color:var(--text-soft);margin:18px 0 8px}
.note{background:var(--primary-surface);border:1px solid #cfe8d6;border-radius:12px;padding:14px 18px;font-size:14.5px;color:#214d24;margin:20px 0}
.toc{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px 22px;margin:24px 0}
.toc h2{font-size:14px;text-transform:uppercase;letter-spacing:.3px;color:var(--text-soft);margin-bottom:10px}
.toc ol{margin-left:18px;columns:2;column-gap:28px;font-size:14.5px}
.toc li{margin:4px 0;break-inside:avoid}
h2.sec{font-size:22px;font-weight:800;margin:36px 0 10px;letter-spacing:-.3px;scroll-margin-top:80px}
h3{font-size:17px;font-weight:700;margin:20px 0 6px}
p{margin:10px 0}
ul,ol.list{margin:10px 0 10px 22px}
li{margin:6px 0}
table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14.5px}
th,td{text-align:left;padding:10px 12px;border:1px solid var(--border);vertical-align:top}
th{background:var(--primary-surface);font-weight:700}
.ph{background:#FEF3C7;border-radius:4px;padding:0 4px;font-weight:600;color:#7c5e00}
footer.lfoot{border-top:1px solid var(--border);margin-top:48px;padding:28px 0;color:var(--text-soft);font-size:14px}
.lfoot a{margin-right:16px}
@media(max-width:640px){h1{font-size:30px}.toc ol{columns:1}}