:root{--ink:#283B48;--teal:#12B5A5;--teal-d:#0E9B8E;--muted:#5E6E78;--line:#E5ECEF;--bg-soft:#F6F9FA;--maxw:760px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#36464f;line-height:1.7;background:#fff;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:'Sora','Inter',sans-serif;letter-spacing:-.02em;line-height:1.2;color:var(--ink)}
a{color:var(--teal-d);text-decoration:none}
a:hover{text-decoration:underline}
.nav{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);z-index:20}
.nav-in{max-width:1140px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}
.brand{font-family:'Sora',sans-serif;font-weight:800;font-size:20px;letter-spacing:-.03em}
.brand .a{color:var(--ink)}.brand .b{color:var(--teal)}
.brand .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--teal);margin-left:2px}
.nav .cta{font-size:14px;font-weight:600;color:#fff;background:var(--teal);padding:9px 16px;border-radius:10px}
.nav .cta:hover{background:var(--teal-d);text-decoration:none}
.doc{max-width:var(--maxw);margin:0 auto;padding:48px 24px 24px}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-d);margin-bottom:10px}
.doc h1{font-size:40px;font-weight:800;margin-bottom:8px;color:var(--ink)}
.updated{color:var(--muted);font-size:14px;margin-bottom:30px}
.doc h2{font-size:24px;font-weight:700;margin:38px 0 12px}
.doc h3{font-size:18px;font-weight:700;margin:24px 0 8px}
.doc p,.doc li{font-size:16.5px;margin-bottom:14px}
.doc ul,.doc ol{margin:0 0 16px 22px}
.doc li{margin-bottom:8px}
.lead{font-size:19px;color:var(--muted);margin-bottom:22px}
.callout{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin:22px 0;font-size:15.5px;color:var(--muted)}
.cta-box{background:var(--ink);border-radius:16px;padding:28px 30px;margin:40px 0 8px;color:#fff}
.cta-box h3{color:#fff;font-size:22px;margin-bottom:8px}
.cta-box p{color:#c6d2d9;font-size:16px;margin-bottom:0}
.cta-box a.btn{display:inline-block;margin-top:16px;background:var(--teal);color:#fff;font-weight:600;padding:12px 22px;border-radius:11px}
.cta-box a.btn:hover{background:var(--teal-d);text-decoration:none}
table.tbl{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
table.tbl th,table.tbl td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
table.tbl th{background:var(--bg-soft);font-weight:700;color:var(--ink)}
.foot{border-top:1px solid var(--line);background:#16242d;color:#9fb0b8;padding:30px 0;margin-top:40px;font-size:14px}
.foot-in{max-width:1140px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
.foot a{color:#9fb0b8}.foot a:hover{color:#fff}
.meta-row{display:flex;gap:14px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);margin-bottom:26px}
.post-list{list-style:none;margin:0;padding:0}
.post-list li{margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.post-list a.title{font-family:'Sora',sans-serif;font-weight:700;font-size:21px;color:var(--ink)}
.post-list a.title:hover{color:var(--teal-d)}
.post-list .ex{font-size:15.5px;color:var(--muted);margin-top:6px}
@media(max-width:560px){.doc h1{font-size:30px}}