:root {
  --bg: #eef6f5;
  --text: #0c1a24;
  --muted: #5c6b78;
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --accent: #6366f1;
  --card: rgba(255, 255, 255, 0.92);
  --border: rgba(13, 148, 136, 0.14);
  --shadow: 0 16px 48px rgba(13, 148, 136, 0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(ellipse 120% 80% at 10% -10%, rgba(13, 148, 136, 0.18), transparent 55%),
    radial-gradient(ellipse 90% 70% at 100% 0%, rgba(99, 102, 241, 0.14), transparent 50%),
    var(--bg);
  min-height: 100vh;
}

a { color: var(--primary-dark); font-weight: 600; }

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.site-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.site-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, #0d9488, #6366f1);
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: var(--shadow);
}

.site-brand strong {
  display: block;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
}

.site-brand span {
  font-size: 0.82rem;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 28px 24px;
  box-shadow: var(--shadow);
}

.card h1 {
  margin: 0 0 8px;
  font-size: 1.75rem;
  letter-spacing: -0.03em;
}

.card .meta {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 0.92rem;
}

.card h2 {
  font-size: 1.05rem;
  margin: 1.75rem 0 0.5rem;
}

.card p, .card li { color: #24323d; }

.card ul { padding-left: 1.2rem; }

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(13, 148, 136, 0.1);
  text-decoration: none;
  font-size: 0.88rem;
}

.site-footer {
  margin-top: 28px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
}

.faq dt {
  font-weight: 700;
  margin-top: 1rem;
}

.faq dd {
  margin: 0.35rem 0 0;
  color: #24323d;
}

.contact-box {
  margin-top: 1.5rem;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(13, 148, 136, 0.08);
  border: 1px solid var(--border);
}