:root {
  --ink: #1b1530;
  --muted: #5d5872;
  --bg: #ffffff;
  --soft: #f6f4fb;
  --line: #e6e2f0;
  --brand: #4b2bd6;
  --brand-ink: #ffffff;
  --accent: #fe0072;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
a { color: var(--brand); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
header.top {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.logo { font-weight: 800; font-size: 20px; letter-spacing: -.02em; color: var(--ink); text-decoration: none; }
.logo span { color: var(--brand); }
nav a { margin-left: 20px; color: var(--muted); text-decoration: none; font-size: 15px; }
nav a:hover { color: var(--ink); }
.btn {
  display: inline-block; padding: 12px 20px; border-radius: 10px; border: 0;
  background: var(--brand); color: var(--brand-ink); font-weight: 600; font-size: 15px;
  text-decoration: none; cursor: pointer;
}
.btn.ghost { background: transparent; color: var(--brand); border: 1px solid var(--brand); }
.hero { padding: 80px 0 64px; background: linear-gradient(180deg, var(--soft), #fff); }
.hero h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -.03em; max-width: 760px; }
.hero p { font-size: 19px; color: var(--muted); max-width: 620px; margin: 0 0 28px; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; }
section { padding: 64px 0; }
section h2 { font-size: 32px; letter-spacing: -.02em; margin: 0 0 8px; }
section .lead { color: var(--muted); margin: 0 0 32px; }
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; background: #fff; }
.card h3 { margin: 0 0 8px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); }
.price { font-size: 30px; font-weight: 800; margin: 8px 0 4px; }
.card ul { padding-left: 18px; color: var(--muted); margin: 12px 0 0; }
.card.featured { border: 2px solid var(--brand); }
form.demo { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; max-width: 720px; }
form.demo label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
form.demo input, form.demo select {
  font: inherit; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); background: #fff;
}
form.demo .full { grid-column: 1 / -1; }
@media (max-width: 640px) { form.demo { grid-template-columns: 1fr; } nav a:not(.btn) { display: none; } }
details { border-bottom: 1px solid var(--line); padding: 14px 0; }
details summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 8px 0 0; }
.agents {
  background: #1f1238; color: #ece6ff; border-radius: var(--radius); padding: 28px;
}
.agents h2 { color: #fff; font-size: 24px; }
.agents a { color: #ff9ccb; }
.agents code { background: rgba(255,255,255,.08); padding: 2px 6px; border-radius: 6px; }
footer { border-top: 1px solid var(--line); padding: 32px 0 96px; color: var(--muted); font-size: 14px; }
.notice { margin-top: 12px; padding: 12px 16px; border-radius: 10px; background: #eaf7ee; color: #14532d; display: none; }