body {
  font-family: "Hiragino Sans", "Meiryo", sans-serif;
  background: #f9f9f9;
  color: #333;
  margin: 0;
  padding: 0;
  line-height: 1.8;
}

header {
  background: linear-gradient(90deg, #9370db, #48d1cc);
  color: #fff;
  text-align: center;
  padding: 20px 15px;
}

header a {
  color: #fff;
  text-decoration: none;
  font-size: 26px;
  font-weight: bold;
}

main.guide-page {
  max-width: 800px;
  margin: 40px auto;
  padding: 0 16px;
}

.page-header {
  text-align: center;
  margin-bottom: 40px;
}

.page-header h2 {
  font-size: 28px;
  color: #444;
  margin-bottom: 10px;
  border-left: none; 
}

.page-header p {
  color: #555;
  font-size: 15px;
}


.guide-section {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  margin-bottom: 30px;
  padding: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.guide-section:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}


.guide-section h3 {
  font-size: 20px;
  color: #6a5acd;
  margin-top: 0;
  border-left: 4px solid #6a5acd; 
  padding-left: 10px;
}

.guide-section p,
.guide-section ul {
  font-size: 15px;
  margin: 12px 0;
}

.guide-section a {
  text-decoration: underline;
}

.guide-section a:hover {
  color: #6a5acd;
}

.back-link {
  text-align: center;
  margin-top: 40px;
}

.back-link a {
  display: inline-block;
  background: linear-gradient(90deg, #6a5acd, #48d1cc);
  color: #fff;
  padding: 10px 18px;
  border-radius: 6px;
  text-decoration: none;
  transition: opacity 0.3s;
}

.back-link a:hover {
  opacity: 0.85;
}




@media (max-width: 600px) {
  header a { font-size: 22px; }
  .page-header h2 { font-size: 24px; }
  .guide-section h3 { font-size: 18px; }
}