:root {
  --bg-top: #1c1738;
  --bg: #0a0814;
  --card: #14111f;
  --stroke: rgba(255, 255, 255, 0.08);
  --primary: #9e82f5;
  --accent: #7398fa;
  --text: #f2f2fb;
  --text-dim: #a3a3bd;
  --text-faint: #6f6f8c;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg-top) 0%, var(--bg) 60%);
  background-attachment: fixed;
  line-height: 1.65;
  min-height: 100vh;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 48px 22px 80px; }
header.hero { text-align: center; padding: 64px 22px 28px; }
.logo {
  width: 96px; height: 96px; border-radius: 24px; margin: 0 auto 20px;
  background: radial-gradient(circle at 50% 35%, #8e6bf5, #2e1e5c);
  display: flex; align-items: center; justify-content: center; font-size: 48px;
  box-shadow: 0 12px 40px rgba(120, 90, 240, 0.35);
}
h1 { font-size: 2.1rem; font-weight: 800; letter-spacing: -0.5px; }
.tagline { color: var(--text-dim); font-size: 1.1rem; margin-top: 8px; }
.badge {
  display: inline-block; margin-top: 16px; padding: 7px 14px; border-radius: 999px;
  background: rgba(158, 130, 245, 0.15); color: var(--primary);
  font-size: 0.85rem; font-weight: 600;
}
.card {
  background: var(--card); border: 1px solid var(--stroke);
  border-radius: 18px; padding: 26px; margin: 18px 0;
}
.features { list-style: none; }
.features li { display: flex; gap: 12px; padding: 10px 0; color: var(--text); }
.features .ic { color: var(--primary); font-size: 1.2rem; }
h2 { font-size: 1.25rem; margin: 26px 0 8px; }
h2:first-child { margin-top: 0; }
p, li { color: var(--text-dim); }
.content p { margin: 8px 0; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--text-faint); font-size: 0.85rem; }
nav.links { text-align: center; margin-top: 28px; display: flex; gap: 22px; justify-content: center; flex-wrap: wrap; }
footer { text-align: center; color: var(--text-faint); font-size: 0.8rem; padding: 40px 22px; }
.back { display: inline-block; margin-bottom: 22px; color: var(--text-dim); font-size: 0.9rem; }