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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "ヒラギノ角ゴ ProN W3", Meiryo, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fafafa;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}

header {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 2px solid #e0e0e0;
}

h1 {
  font-size: 2rem;
  color: #444;
  font-weight: 600;
}

.about {
  margin-bottom: 50px;
  text-align: center;
}

.about p {
  font-size: 1.1rem;
  color: #666;
  line-height: 1.8;
}

.services h2 {
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: #444;
  font-weight: 600;
}

.service-item {
  background: white;
  padding: 24px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  margin-bottom: 16px;
}

.service-item h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: #333;
  font-weight: 500;
}

.service-item a {
  color: #0066cc;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.service-item a:hover {
  color: #0052a3;
  text-decoration: underline;
}

@media (max-width: 600px) {
  .container {
    padding: 30px 16px;
  }

  h1 {
    font-size: 1.75rem;
  }

  .about p {
    font-size: 1rem;
  }
}