:root{
  --bg:#0b1220;
  --fg:#e8eefc;
  --muted:#a9b4d0;
  --card:#111a2f;
  --line:rgba(255,255,255,.12);
  --accent:#c0cadb; /* steel-ish */
  --max:980px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  background: radial-gradient(1200px 600px at 20% 0%, rgba(192,202,219,.10), transparent 50%),
              radial-gradient(1000px 500px at 90% 10%, rgba(232,238,252,.08), transparent 55%),
              var(--bg);
  color:var(--fg);
}
a{color:inherit}
.wrap{
  max-width:var(--max);
  margin:0 auto;
  padding:56px 20px 72px;
}
.header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
}
.brand{
  display:flex;
  align-items:center;
  gap:14px;
}
.mark{
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:14px;
  background: linear-gradient(135deg, rgba(192,202,219,.18), rgba(255,255,255,.02));
}
h1{
  font-size:32px;
  line-height:1.1;
  letter-spacing:.2px;
  margin:0;
}
.tag{
  margin:8px 0 0;
  color:var(--muted);
  font-size:14px;
}
.grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:18px;
}
@media (max-width: 860px){
  .grid{grid-template-columns:1fr}
}
.card{
  border:1px solid var(--line);
  border-radius:18px;
  padding:22px;
  background: rgba(17,26,47,.72);
  backdrop-filter: blur(8px);
}
h2{
  margin:0 0 10px;
  font-size:16px;
  color:var(--accent);
  letter-spacing:.5px;
  text-transform:uppercase;
}
p{margin:0 0 10px;color:var(--fg)}
.small{color:var(--muted);font-size:14px;line-height:1.6}
.kv{
  font-size:18px;
  line-height:1.7;
  margin-top:6px;
}
.list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:14px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  text-decoration:none;
  background: rgba(255,255,255,.03);
}
.pill:hover{background: rgba(255,255,255,.06)}
.footer{
  margin-top:22px;
  padding-top:16px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}