:root{color-scheme:dark;--bg:#08080D;--surface:#12131A;--surface2:#181A23;--line:#24262F;--ink:#EEEDF4;--muted:#A3A1B2;--dim:#75738A;--g:#1FCB7A;--grad:linear-gradient(135deg,#2BD98A,#0B8F55);--amber:#FFB86B}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.75 Manrope,system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}
a{color:#5FE3B0}a:hover{color:#8FF0C8}
.top{position:sticky;top:0;z-index:5;background:rgba(8,8,13,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .in{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:18px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font:800 18px Unbounded,Manrope,sans-serif;white-space:nowrap}.logo b{color:var(--g)}
.top nav{display:flex;gap:20px;margin-left:auto;align-items:center}.top nav a{color:var(--muted);text-decoration:none;font-weight:600;font-size:15px}.top nav a:hover{color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--grad);color:#04170D!important;font-weight:800;text-decoration:none;border:0;border-radius:12px;padding:11px 18px;font-size:15px;cursor:pointer}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--ink)!important}
main{max-width:760px;margin:0 auto;padding:36px 20px 80px}
main.wide{max-width:1080px}
.crumbs{font-size:14px;color:var(--dim);margin-bottom:14px}.crumbs a{color:var(--muted);text-decoration:none}
h1{font:800 clamp(30px,5vw,44px)/1.15 Unbounded,Manrope,sans-serif;letter-spacing:-.02em;margin:6px 0 14px}
h2{font:800 25px/1.3 Manrope,sans-serif;margin:44px 0 10px;letter-spacing:-.01em}
h3{font:800 19px/1.35 Manrope,sans-serif;margin:28px 0 6px}
p,li{color:#D6D5E0}ul,ol{padding-left:22px}li{margin:6px 0}
.meta{color:var(--dim);font-size:14.5px;display:flex;gap:14px;flex-wrap:wrap}
.lede{font-size:19.5px;color:var(--ink)}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 20px;margin:26px 0}
.toc b{display:block;font-size:14px;color:var(--muted);margin-bottom:4px}.toc ol{margin:0}.toc a{color:var(--ink);text-decoration:none}
.tip{border-left:3px solid var(--g);background:rgba(31,203,122,.07);padding:12px 16px;border-radius:0 12px 12px 0;margin:20px 0}
.cta{margin:36px 0;padding:24px;border-radius:18px;background:radial-gradient(circle at 80% 0,rgba(31,203,122,.18),transparent 60%),var(--surface);border:1px solid var(--line)}
.cta h3{margin-top:0}.cta p{margin:6px 0 16px}
table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15.5px;display:block;overflow-x:auto}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--muted);font-weight:700;white-space:nowrap}
.faq details{border-bottom:1px solid var(--line);padding:12px 0}.faq summary{cursor:pointer;font-weight:700}.faq p{margin:8px 0 0}
.related{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-top:14px}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;text-decoration:none;color:var(--ink);transition:border-color .2s,transform .2s}
.card:hover{border-color:rgba(31,203,122,.5);transform:translateY(-2px);color:var(--ink)}
.card .k{font-size:12.5px;color:var(--g);font-weight:800;text-transform:uppercase;letter-spacing:.06em}.card h3{margin:6px 0 6px;font-size:18px}.card p{margin:0;font-size:15px;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin-top:26px}
.grid .card{padding:22px}.grid .card h3{font-size:20px}
.foot{border-top:1px solid var(--line);color:var(--dim);font-size:14.5px}.foot .in{max-width:1080px;margin:0 auto;padding:26px 20px;display:flex;gap:10px 18px;flex-wrap:wrap}.foot a{color:var(--muted)}
form .f{margin:14px 0}form label{display:block;font-weight:700;font-size:15px;margin-bottom:6px}
input,select,textarea{width:100%;background:var(--surface);border:1px solid var(--line);border-radius:12px;color:var(--ink);font:16px Manrope,sans-serif;padding:12px 14px}
textarea{min-height:150px;resize:vertical}input:focus,select:focus,textarea:focus{outline:2px solid rgba(31,203,122,.5);border-color:transparent}
.msg{margin-top:12px;color:var(--amber);min-height:24px}
@media (max-width:640px){body{font-size:16.5px}.top nav a:not(.btn){display:none}.top nav{gap:10px}h2{font-size:22px}.logo{font-size:16px}}