body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 0;
  color: #222;
  background: #fafafa;
}

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 20px;
}

.lang {
  text-align: right;
  margin-bottom: 32px;
}

h1 {
  font-size: 2.4rem;
  margin-bottom: 0.2em;
}

.subtitle {
  font-size: 1.3rem;
  color: #555;
  margin-top: 0;
}

h2 {
  margin-top: 36px;
}

.card {
  background: white;
  border: 1px solid #ddd;
  border-radius: 14px;
  padding: 20px 24px;
  margin: 32px 0;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

a {
  color: #005bbb;
}

.notice {
  margin: 18px 0;
  padding: 14px 16px;
  background: #f3f7ff;
  border-left: 4px solid #005bbb;
}

.notice p {
  margin: 0 0 10px;
}

.notice p:last-child {
  margin-bottom: 0;
}

.button-link {
  display: inline-block;
  padding: 9px 12px;
  color: #fff;
  background: #005bbb;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
}

.button-link:hover,
.button-link:focus {
  background: #004999;
}