:root{
  --bg:#0b1020;--bg2:#0e1530;--card:#141d3a;--line:#243056;
  --accent:#5b8cff;--accent2:#8b6cff;--text:#e9edf8;--muted:#9aa6c4;--ok:#34d399;
  --max:1080px;--radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:radial-gradient(1100px 560px at 75% -10%,#1a2550,transparent),var(--bg);
  color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:0 22px}
header.site{position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);
  background:rgba(11,16,32,.78);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:800;letter-spacing:.4px;color:var(--text);font-size:1.05rem}
.brand span{color:var(--accent)}
.nav nav a{color:var(--muted);margin-left:22px;font-weight:600;font-size:.95rem}
.nav nav a:hover{color:var(--text);text-decoration:none}
.hero{padding:78px 0 46px;text-align:center}
.kicker{color:var(--accent);font-weight:700;letter-spacing:1px;text-transform:uppercase;font-size:.8rem}
h1{font-size:clamp(2.1rem,5vw,3.5rem);line-height:1.08;margin:14px 0 16px}
h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:0 0 14px}
h3{font-size:1.15rem;margin:0 0 8px}
.lead{color:var(--muted);font-size:1.15rem;max-width:680px;margin:0 auto 26px}
.btn{display:inline-block;background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#06122e;font-weight:800;padding:13px 28px;border-radius:999px;transition:.15s}
.btn:hover{transform:translateY(-2px);text-decoration:none;filter:brightness(1.07)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.grid{display:grid;gap:20px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.card .ico{font-size:1.6rem;margin-bottom:10px}
.muted{color:var(--muted)}
section{padding:50px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 34px}
.faq{background:var(--card);border:1px solid var(--line);border-radius:14px;margin:12px 0;overflow:hidden}
.faq summary{cursor:pointer;padding:18px 22px;font-weight:700;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:1.3rem}
.faq[open] summary::after{content:"–"}
.faq .body{padding:0 22px 20px;color:var(--muted)}
.post{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column}
.post .tag{color:var(--accent);font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.post h3{margin:8px 0}.post p{color:var(--muted);font-size:.96rem;flex:1}
.post a.more{margin-top:14px;font-weight:700}
.article{max-width:760px;margin:0 auto}
.article p{margin:16px 0;color:#d4dbf0}
.article h2{margin-top:34px}
.article ul{margin:14px 0 14px 22px;color:#d4dbf0}
.article li{margin:6px 0}
.breadcrumb{color:var(--muted);font-size:.88rem;margin:22px 0}
.cta-band{background:linear-gradient(135deg,#16224a,#1c1740);border:1px solid var(--line);
  border-radius:22px;padding:42px;text-align:center;margin:40px 0}
footer.site{border-top:1px solid var(--line);padding:36px 0;color:var(--muted);margin-top:30px}
.foot-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px}
.foot-grid a{color:var(--muted);display:block;margin:6px 0}
@media(max-width:820px){.grid.c3,.grid.c2{grid-template-columns:1fr}
  .nav nav a{margin-left:14px}.hero{padding:54px 0 30px}}