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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell,
    'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  color: #333;
  background: #fff;
}

.content-section {
  padding: 80px 24px;
}

.content-section:first-of-type {
  padding-top: 120px;
}

.content-section-inner {
  max-width: 800px;
  margin: 0 auto;
}

.content-section h1 {
  font-size: 2.8rem;
  font-weight: 700;
  color: #111;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.content-section h2 {
  font-size: 1.8rem;
  font-weight: bold;
  color: #333;
  margin-bottom: 16px;
}

.content-section p {
  font-size: 1rem;
  color: #555;
  line-height: 1.8;
  margin-bottom: 16px;
}

.note {
  background-color: #fff8e1;
  border-left: 4px solid #ffc107;
  padding: 15px 20px;
  border-radius: 0 6px 6px 0;
  margin: 20px 0;
  font-size: 0.95rem;
  color: #555;
  line-height: 1.7;
}

.note a {
  color: #555;
}

.version {
  margin-bottom: 32px;
}

.version:last-child {
  margin-bottom: 0;
}

.version h2 {
  margin-bottom: 12px;
}

.version ul {
  padding-left: 20px;
  margin: 0;
}

.version li {
  font-size: 0.95rem;
  color: #555;
  line-height: 1.7;
  margin-bottom: 6px;
}

.footer {
  background: #333;
  color: #999;
  padding: 32px 24px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer-logo {
  font-size: 1.1rem;
  font-weight: bold;
  color: #fff;
}

.footer-copy {
  font-size: 0.8rem;
  color: #777;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: #999;
  text-decoration: none;
  font-size: 0.85rem;
}

.footer-links a:hover {
  color: #fff;
}

@media (max-width: 768px) {
  .content-section {
    padding: 60px 20px;
  }

  .content-section:first-of-type {
    padding-top: 100px;
  }

  .content-section h1 {
    font-size: 2rem;
  }

  .content-section h2 {
    font-size: 1.4rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-left {
    flex-direction: column;
    gap: 8px;
  }
}