:root{
  --bg:var(--ds-background-default); --bg-2:var(--ds-background-subtle); --card:var(--ds-layer-01); --line:var(--ds-border-subtle); --line-2:var(--ds-border-subtle);
  --text:var(--ds-text-primary); --text-2:var(--ds-gray-80); --muted:var(--ds-text-secondary); --muted-2:var(--ds-text-placeholder);
  --accent:var(--ds-orange-60); --accent-ink:var(--ds-text-accent); --accent-soft:var(--ds-layer-highlight);
  --dk:var(--ds-background-inverse); --dk-2:var(--ds-layer-inverse-01); --dk-line:var(--ds-border-subtle-inverse); --ok:#1F9D55;
  --display:var(--ds-font-display); --body:var(--ds-font-body); --mono:var(--ds-font-mono);
  --nav:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav) + 16px)}
html,body{overflow-x:clip}
body{font-family:var(--body);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.55}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.wrap{max-width:1376px;margin:0 auto;padding:0 48px}
h1,h2,h3{font-family:var(--display);font-weight:700;letter-spacing:-.025em;line-height:1.1;color:var(--text)}
.eyebrow{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:var(--ds-button-m);padding:0 18px;border-radius:var(--ds-radius-control);font-weight:600;font-size:14px;transition:background .2s,border-color .2s;white-space:nowrap}
.btn-primary{background:var(--text);color:#fff}.btn-primary:hover{background:#2B3445}
.btn-ghost{border:1px solid #CDD1D8;color:var(--text)}.btn-ghost:hover{background:#fff}
.ext{font-size:12px;opacity:.6}

.nav{position:fixed;top:0;left:0;right:0;z-index:50;height:var(--nav);background:var(--bg);border-bottom:1px solid var(--line-2);color:var(--text)}
.nav .wrap{display:flex;align-items:center;height:100%;gap:40px;max-width:1360px}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:18px;letter-spacing:-.02em;white-space:nowrap}
.logo-mark{width:22px;height:22px;border-radius:4px;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700}
.logo .sub{font-weight:500;opacity:.5}
.menu{display:flex;gap:2px;flex:1;justify-content:center}
.menu>li{list-style:none;position:relative}
.menu>li>a{display:flex;align-items:center;gap:6px;padding:10px 14px;border-radius:8px;font-size:14px;font-weight:500;opacity:.78;white-space:nowrap}
.menu>li>a:hover,.menu>li>a.cur{opacity:1}
.chev{width:10px;height:10px;transition:transform .2s}
.has-drop:hover .chev{transform:rotate(180deg)}
.drop{position:absolute;top:100%;left:-12px;padding-top:10px;opacity:0;visibility:hidden;transform:translateY(6px);transition:.18s}
.has-drop:hover .drop,.has-drop:focus-within .drop{opacity:1;visibility:visible;transform:none}
.drop-inner{width:460px;background:#FFFFFF;border:1px solid var(--line);border-radius:8px;box-shadow:0 12px 32px rgba(17,24,39,.10);padding:8px;display:grid;grid-template-columns:1fr 1fr;gap:2px}
.drop-item{padding:14px;border-radius:6px;display:block}
.drop-item:hover,.drop-item.cur{background:var(--bg)}
.drop-item b{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;margin-bottom:4px}
.drop-item.cur b::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.drop-item small{font-size:12px;color:var(--muted);line-height:1.4;display:block}
.nav-right{display:flex;align-items:center;gap:18px;font-size:14px}
.nav-right .btn{height:38px;font-size:14px}
.lang{opacity:.7;display:flex;gap:6px;align-items:center;white-space:nowrap}
.burger{display:none;width:38px;height:38px;border-radius:8px;border:1px solid var(--line);place-items:center}
.burger svg{width:18px;height:18px}
@media (max-width:1200px){.nav .wrap{gap:20px}.menu>li>a{padding:8px 9px;font-size:14px}.nav-right{gap:12px}}
@media (max-width:1000px){
  .menu,.lang{display:none}.nav-right{margin-left:auto}.burger{display:grid}
  .nav.open .menu{display:flex;flex-direction:column;justify-content:flex-start;position:fixed;top:var(--nav);left:0;right:0;padding:12px 16px 24px;background:var(--ds-background-subtle);border-bottom:1px solid var(--line)}
  .nav.open .drop{position:static;opacity:1;visibility:visible;transform:none;padding:0 0 6px}
  .nav.open .drop-inner{width:auto;grid-template-columns:1fr;background:none;border:0;box-shadow:none;padding:0 0 0 12px}
  .nav.open .drop-item small{display:none}.nav.open .chev{display:none}
  .ft .f-grid{grid-template-columns:1fr 1fr}
}
.demo-note{position:fixed;left:16px;bottom:16px;z-index:60;background:var(--ds-gray-100);color:#fff;font-size:11px;padding:8px 12px;border-radius:4px;font-family:var(--mono)}
.demo-note a{text-decoration:underline;margin-left:8px}