:root{
  --bg:#0b1020;
  --bg-2:#11182d;
  --paper:#131c33;
  --paper-2:#1a2442;
  --ink:#edf2ff;
  --muted:#a9b5d4;
  --line:#2a3558;
  --accent:#8cb4ff;
  --accent-2:#5c7ed6;
  --soft:#17213d;
  --soft-2:#0f1730;
  --success:#8fe0bf;
  --shadow:0 18px 46px rgba(0,0,0,.34);
  --radius:20px;
  --max:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at top left, rgba(140,180,255,.10), transparent 26%),
    radial-gradient(circle at bottom right, rgba(92,126,214,.12), transparent 24%),
    linear-gradient(180deg, var(--bg) 0%, #0e1427 100%);
  line-height:1.7;
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max); margin:0 auto; padding:0 24px}
.site-header{
  position:sticky; top:0; z-index:10;
  backdrop-filter:blur(14px);
  background:rgba(11,16,32,.74);
  border-bottom:1px solid rgba(42,53,88,.9);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between; gap:20px;
  padding:18px 0;
}
.brand-title{margin:0; font-size:1.2rem; font-weight:800; letter-spacing:.01em}
.brand-sub{margin:3px 0 0; color:var(--muted); font-size:.95rem}
.nav{display:flex; flex-wrap:wrap; gap:16px}
.nav a{color:var(--ink); font-weight:600; font-size:.95rem; padding:6px 0}
.hero{padding:84px 0 42px}
.hero-grid{display:grid; grid-template-columns:1.2fr .8fr; gap:26px; align-items:stretch}
.hero-card, .panel, .post-card, .contact-card{
  background:linear-gradient(180deg, rgba(24,34,62,.96) 0%, rgba(19,28,51,.98) 100%);
  border:1px solid rgba(42,53,88,.95);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.hero-card{padding:38px}
.kicker{
  display:inline-block;
  padding:7px 12px;
  background:rgba(140,180,255,.08);
  border:1px solid rgba(140,180,255,.22);
  border-radius:999px;
  color:#c4d8ff;
  font-weight:700;
  font-size:.85rem;
  letter-spacing:.02em;
  margin-bottom:14px;
}
.hero h1{font-size:clamp(2.2rem, 4vw, 4.1rem); line-height:1.08; margin:.15em 0 .35em; letter-spacing:-.03em}
.lead{font-size:1.13rem; color:#d9e3fb}
.hero-side{display:grid; gap:18px}
.metric{padding:24px}
.metric strong{display:block; font-size:2rem; line-height:1; margin-bottom:10px}
.metric span{color:var(--muted)}
section{padding:18px 0}
.section-head{display:flex; align-items:end; justify-content:space-between; gap:16px; margin-bottom:16px}
.section-head h2{margin:0; font-size:1.75rem; letter-spacing:-.02em}
.section-head p{margin:0; color:var(--muted)}
.grid-2, .grid-3{display:grid; gap:20px}
.grid-2{grid-template-columns:repeat(2, minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3, minmax(0,1fr))}
.panel{padding:28px}
.panel h2,.panel h3{margin-top:0}
.panel p:last-child{margin-bottom:0}
.soft-list{padding-left:20px; margin:10px 0 0}
.soft-list li{margin:8px 0}
.statement{
  margin:10px 0 0; padding:16px 18px; border-left:4px solid var(--accent);
  background:linear-gradient(90deg, rgba(140,180,255,.10), rgba(140,180,255,.04));
  border-radius:12px;
}
.cta-band{
  margin:18px 0 28px; padding:26px;
  background:linear-gradient(135deg, #233f7b 0%, #355db5 100%);
  color:#fff; border-radius:22px; box-shadow:var(--shadow);
}
.cta-band h3{margin-top:0; color:#fff}
.cta-band a{color:#fff; font-weight:700}
.diagram{
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space:pre-wrap; background:#0b1020; color:#ecf2ff; border-radius:18px;
  padding:20px; overflow:auto; line-height:1.55; font-size:.95rem; border:1px solid #2a3558;
}
.compare-wrap{display:grid; grid-template-columns:1fr 1fr; gap:20px; margin-top:10px}
.compare-card{
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  background:linear-gradient(180deg, #131c33, #0f1730);
  box-shadow:var(--shadow);
}
.compare-head{
  padding:14px 18px;
  font-weight:800;
  letter-spacing:.01em;
  border-bottom:1px solid var(--line);
}
.compare-card.before .compare-head{
  background:linear-gradient(90deg, rgba(255,120,120,.16), rgba(255,120,120,.05));
  color:#ffd4d4;
}
.compare-card.after .compare-head{
  background:linear-gradient(90deg, rgba(143,224,191,.16), rgba(143,224,191,.05));
  color:#d6ffe9;
}
.compare-body{padding:18px}
.timeline{display:grid; gap:16px; margin-top:10px}
.step{padding:18px 20px; border:1px solid var(--line); border-radius:16px; background:linear-gradient(180deg, #151e37, #11182d)}
.step h4{margin:0 0 6px}
.cards-list{display:grid; gap:16px}
.post-card{padding:24px}
.post-meta{font-size:.92rem; color:var(--muted); margin-top:-2px}
.post-card h3{margin:.25em 0}
.footer{margin-top:46px; padding:30px 0 60px; color:var(--muted)}
.footer-inner{
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex; flex-wrap:wrap; justify-content:space-between; gap:16px;
}
.muted{color:var(--muted)}
.quote{font-size:1.15rem; color:#f0f5ff; font-weight:600}
.contact-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:20px}
.contact-card{padding:28px}
.button{
  display:inline-block; margin-top:10px; padding:11px 16px; border-radius:999px;
  background:var(--accent); color:#08111f; font-weight:800;
}
.button.secondary{background:#fff; color:var(--accent-2); border:1px solid var(--line)}
hr.sep{border:none; border-top:1px solid var(--line); margin:28px 0}
.article{max-width:780px}
.article h1{font-size:clamp(2rem,3.2vw,3.3rem); line-height:1.12; letter-spacing:-.03em}
.article h2{margin-top:1.8em}
.article p, .article li{font-size:1.05rem}
.tag-row{display:flex; flex-wrap:wrap; gap:10px; margin-top:14px}
.tag{
  padding:6px 10px; background:rgba(140,180,255,.09); border:1px solid rgba(140,180,255,.18);
  border-radius:999px; color:#c8dbff; font-size:.9rem; font-weight:700;
}
@media (max-width: 900px){
  .hero-grid, .grid-2, .grid-3, .contact-grid, .compare-wrap{grid-template-columns:1fr}
  .header-inner{align-items:flex-start; flex-direction:column}
  .hero{padding-top:48px}
}