:root{
  --bg:#0b1020;
  --bg2:#060813;
  --card:rgba(255,255,255,.045);
  --border:rgba(255,255,255,.12);
  --text:#e9eeff;
  --muted:#9fb0d0;
  --accent:#7cc7ff;
  --accent2:#a7ffcf;
  --shadow:0 14px 40px rgba(0,0,0,.35);
  --r:18px;
  --max:1120px;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans";
  background:
    radial-gradient(1200px 800px at 15% 0%, rgba(124,199,255,.18), transparent 60%),
    radial-gradient(900px 700px at 80% 18%, rgba(167,255,207,.12), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2) 68%);
  color:var(--text);
  line-height:1.6;
}
.container{max-width:var(--max); margin:0 auto; padding:0 18px}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
header{
  position:sticky; top:0; z-index:50;
  background: rgba(11,16,32,.68);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}
.nav{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding:14px 0;
}
.brand{display:flex; align-items:center; gap:12px}
.logo{
  width:36px; height:36px; border-radius:14px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: var(--shadow);
}
.brand h1{margin:0; font-size:1.05rem; letter-spacing:.2px}
.brand .small{margin:0}
.menu{display:flex; flex-wrap:wrap; gap:8px; align-items:center}
.menu a{
  color:var(--text); opacity:.92;
  padding:8px 10px; border-radius:12px;
  border:1px solid transparent;
}
.menu a.active, .menu a:hover{
  background: rgba(255,255,255,.05);
  border-color: var(--border);
  text-decoration:none;
}
.hero{padding:40px 0 18px}
.hero-grid{display:grid; grid-template-columns:1.25fr .75fr; gap:16px}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}}
.card{
  background: var(--card);
  border:1px solid var(--border);
  border-radius: var(--r);
  box-shadow: var(--shadow);
}
.pad{padding:18px}
.kicker{color:var(--muted); font-size:.95rem}
h1.big{margin:10px 0 12px; font-size:2.05rem; line-height:1.12}
h2{margin:18px 0 10px; font-size:1.35rem}
h3{margin:14px 0 8px; font-size:1.1rem}
p{margin:10px 0}
.badges{display:flex; flex-wrap:wrap; gap:10px; margin-top:10px}
.badge{
  font-size:.92rem; color: var(--text);
  padding:7px 10px;
  border:1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.04);
}
.grid{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
@media(max-width:980px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.grid{grid-template-columns:1fr}}
.small{color:var(--muted); font-size:.95rem}
.hr{height:1px; background: var(--border); margin:14px 0}
.notice{
  padding:12px 14px;
  border:1px dashed rgba(124,199,255,.35);
  border-radius: 14px;
  background: rgba(124,199,255,.07);
}
.table{
  width:100%;
  border-collapse: collapse;
  overflow:hidden;
  border-radius: 14px;
  border:1px solid var(--border);
}
.table th, .table td{
  padding:10px 12px;
  border-bottom:1px solid var(--border);
  vertical-align:top;
}
.table th{background: rgba(255,255,255,.04); text-align:left}
.table tr:last-child td{border-bottom:none}
.input{
  width:100%;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background: rgba(0,0,0,.18);
  color: var(--text);
  outline:none;
}
.footer{
  margin-top:34px;
  padding:22px 0 28px;
  border-top:1px solid var(--border);
  color: var(--muted);
  font-size:.92rem;
}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{font-size:.9rem;padding:7px 10px;border:1px solid var(--border);border-radius:999px;background:rgba(255,255,255,.04)}
.toc a{display:block;padding:6px 0}
.list li{margin:6px 0}