:root {
  --bg: #f7fbff;
  --card: rgba(255, 255, 255, 0.85);
  --text: #0f172a;
  --muted: #5b6b82;
  --primary: #1eb7ff;
  --primary-2: #0b7ee8;
  --shadow: 0 20px 60px rgba(21, 101, 192, 0.12);
  --shadow-soft: 0 10px 30px rgba(30, 183, 255, 0.12);
  --max: 860px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 10%, rgba(30, 183, 255, 0.18), transparent 28%),
    radial-gradient(circle at 90% 15%, rgba(125, 223, 255, 0.22), transparent 24%),
    linear-gradient(180deg, #fcfeff 0%, #f4faff 48%, #eef7ff 100%);
  line-height: 1.6;
}
a { color: #0b7ee8; text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; padding: 28px 0 64px; }
.nav {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(247, 251, 255, 0.84);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}
.nav-inner {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 12px 0;
}
.brand { display: flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; font-weight: 800; }
.brand img { width: 40px; height: 40px; border-radius: 12px; object-fit: cover; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px; padding: 12px 20px; font-weight: 700; text-decoration: none;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: white; box-shadow: var(--shadow-soft);
}
.btn:hover { text-decoration: none; filter: brightness(1.03); }
.card {
  background: var(--card); border: 1px solid rgba(255,255,255,0.7);
  box-shadow: var(--shadow); border-radius: 20px; padding: 28px;
}
h1 { font-size: clamp(28px, 4vw, 42px); line-height: 1.15; letter-spacing: -0.03em; margin: 0 0 14px; }
h2 { font-size: 24px; margin: 28px 0 12px; letter-spacing: -0.02em; }
p, li { color: var(--muted); }
ul { padding-left: 1.2em; }
.muted { color: var(--muted); font-size: 15px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0; }
.faq { margin-top: 18px; }
.faq-item { border-top: 1px solid rgba(15,23,42,0.08); padding: 16px 0; }
.faq-item h3 { margin: 0 0 8px; font-size: 17px; color: var(--text); }
.links { display: grid; gap: 8px; margin-top: 18px; }
footer { padding: 24px 0 40px; color: var(--muted); font-size: 14px; }