body {
  font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 20px;
  background-color: #f8f9fa;
  color: #333;
}

.container {
  margin: 0 auto;
  background-color: white;
  padding: 30px 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

h1 {
  text-align: center;
  color: #2c3e50;
  border-bottom: 1px solid #eee;
  padding-bottom: 15px;
  margin-top: 0;
}

.breadcrumb {
  font-size: 13px;
  color: #888;
  margin-bottom: 16px;
}

.breadcrumb a {
  color: #4c86e5;
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb-sep {
  margin: 0 6px;
}

@media (max-width: 600px) {
  body { padding: 10px; }
  .container { padding: 16px 10px; }
}