body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f9fafb;
  color: #111;
}

/* ヘッダー */
.header {
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  border-bottom: 1px solid #eee;
}

.container {
  max-width: 1000px;
  margin: auto;
  padding: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 20px;
  font-weight: 600;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #555;
  font-weight: 500;
}

nav a:hover {
  color: #000;
}

/* ヒーロー */
.hero {
  max-width: 1000px;
  margin: 60px auto;
  padding: 20px;
  text-align: center;
}

.hero-content h2 {
  font-size: 32px;
  margin-bottom: 10px;
}

.hero-content p {
  color: #666;
  margin-bottom: 30px;
}

.hero-image {
  width: 100%;
  max-width: 600px;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* ポリシー */
.policy {
  display: flex;
  justify-content: center;
  padding: 40px 20px;
}

.card {
  max-width: 800px;
  background: white;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

pre {
  white-space: pre-wrap;
  font-size: 14px;
  line-height: 1.7;
}

/* フッター */
footer {
  text-align: center;
  padding: 40px 20px;
  color: #777;
}