*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: #1d1d1f;
  background: #f5f5f7;
}

header {
  background: #fff;
  border-bottom: 1px solid #e0e0e5;
  padding: 24px 20px;
  text-align: center;
}

header h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

header p {
  color: #6e6e73;
  margin-top: 4px;
  font-size: 15px;
}

main {
  max-width: 720px;
  margin: 48px auto;
  padding: 0 20px 80px;
}

h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 40px 0 16px;
  letter-spacing: -0.2px;
}

p { margin-bottom: 14px; }
p:last-child { margin-bottom: 0; }

.faq { display: flex; flex-direction: column; gap: 12px; }

details {
  background: #fff;
  border: 1px solid #e0e0e5;
  border-radius: 12px;
  padding: 16px 20px;
}

summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

summary::-webkit-details-marker { display: none; }

summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 300;
  color: #6e6e73;
  flex-shrink: 0;
  transition: transform 0.2s;
}

details[open] summary::after {
  content: "−";
}

details p {
  margin-top: 12px;
  color: #3a3a3c;
  font-size: 15px;
}

.contact-card {
  background: #fff;
  border: 1px solid #e0e0e5;
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}

.contact-card a {
  display: inline-block;
  margin-top: 12px;
  background: #0071e3;
  color: #fff;
  text-decoration: none;
  padding: 10px 24px;
  border-radius: 980px;
  font-size: 15px;
  font-weight: 500;
}

.contact-card a:hover { background: #0077ed; }

footer {
  text-align: center;
  padding: 32px 20px;
  font-size: 13px;
  color: #6e6e73;
  border-top: 1px solid #e0e0e5;
}

footer a { color: #0071e3; text-decoration: none; }
footer a:hover { text-decoration: underline; }

@media (max-width: 480px) {
  header h1 { font-size: 22px; }
  h2 { font-size: 19px; }
}