:root{--accent:#065BF9;--accent2:#8415FE;--ink:#0b1224;--muted:#696969;--line:#e5e5e5}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;font-size:16px;line-height:1.6;color:#000;background:#fff;overflow-wrap:anywhere}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
.wr{max-width:1200px;margin:0 auto;padding:0 24px}
/* header */
header{position:fixed;top:0;left:0;right:0;height:70px;z-index:99;background:#fff;border-bottom:1px solid var(--line)}
.nav{height:100%;display:flex;align-items:center;justify-content:space-between}
.logo img{height:34px;width:auto}
.menu{display:flex;gap:34px;font-size:15px;font-weight:500;color:#334155}.menu a:hover,.dd>button:hover{color:var(--accent)}
.dd{position:relative}.dd>button{border:0;background:none;font:inherit;color:inherit;cursor:pointer;display:flex;gap:5px;align-items:center}
.dd-box{position:absolute;top:100%;left:50%;transform:translateX(-50%);padding-top:14px;opacity:0;pointer-events:none;transition:.2s}
.dd:hover .dd-box{opacity:1;pointer-events:auto}
.dd-in{background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;min-width:260px;box-shadow:0 20px 50px rgba(15,23,42,.12)}
.dd-in a{display:block;padding:10px 12px;border-radius:10px;font-size:14px}.dd-in a:hover{background:#f2f6ff;color:var(--accent)}
.cta{display:flex;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:12px;padding:12px 20px;font-size:14px;font-weight:600;transition:.2s}
.btn:hover{transform:translateY(-1px)}
.btn-o{border:1px solid #d7dce5;background:#fff}.btn-g{color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 10px 24px rgba(78,58,240,.2)}
.burger{display:none;border:0;background:none}.mm{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 24px}.mm a{display:block;padding:10px 0;font-weight:500}.mm.open{display:block}
/* content */
main{padding-top:70px}
.sec{padding:50px 0 0}
h1{font-size:48px;line-height:1.15;font-weight:600;margin:0 0 6px}
.upd{margin:0 0 24px;color:var(--muted)}
h2{font-size:22px;font-weight:600;margin:38px 0 10px}
h3.sub{font-size:18px;font-weight:600;margin:24px 0 8px}
p{margin:0 0 14px}ul{margin:0 0 14px;padding-left:24px}li{margin-bottom:6px}
.short{color:#333}
.box{background:#f7f7f7;border:1px solid var(--line);border-radius:10px;padding:18px 22px;margin:18px 0}
.lnk,main a:not(.btn){color:var(--accent);font-weight:500}.lnk:hover,main a:not(.btn):hover{text-decoration:underline}
table{border-collapse:collapse;width:100%;margin:12px 0 18px;font-size:14px}th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}th{background:#f7f7f7;font-weight:600}
.table-wrap{overflow-x:auto}
.toc{columns:2;column-gap:40px;padding-left:20px}.toc li{break-inside:avoid}
/* contact */
.contact{padding:60px 0;text-align:center}
.contact h2{font-size:40px;font-weight:600;margin:0 0 36px}
.cgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:3em}
.ci{display:flex;flex-direction:column;align-items:center}.ci .ic{width:60px;height:60px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,rgba(6,91,249,.12),rgba(132,21,254,.14));color:var(--accent);margin-bottom:14px}
.ci h3{font-size:20px;font-weight:500;margin:0 0 6px}.ci p{margin:0;color:#333}
/* footer */
footer{border-top:1px solid var(--line);padding:34px 0 80px}
.fgrid{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.fbrand img{width:170px;height:auto;margin-bottom:12px}.fbrand p{margin:0 0 4px;font-size:14px;color:#333}
.soc{display:flex;gap:10px;margin-top:14px}.soc a{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#f1f5f9;color:#334155}.soc a:hover{background:#0f172a;color:#fff}
.fcols{display:flex;gap:70px;flex-wrap:wrap}.fcols h4{margin:0 0 12px;font-size:15px;font-weight:600}.fcols ul{list-style:none;margin:0;padding:0}.fcols li{margin-bottom:9px}.fcols a{font-size:14px;color:#333}.fcols a:hover{color:var(--accent)}
@media(max-width:860px){.menu,.cta{display:none}.burger{display:block}h1{font-size:34px}.toc{columns:1}.contact h2{font-size:30px}}