body {
  font-family: "Hiragino Sans", "Noto Sans JP", sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #333;
}

/* 上部ロゴヘッダー */
.site-header {
  background: #fff;          /* 白背景 */
  padding: 0.5rem 1rem;
  border-bottom: 1px solid #ddd;
}
.site-header .logo {
  display: inline-block;
}
.site-header .logo img {
  height: 50px;
  display: block;
}

/* ページタイトル用ヘッダー */
.page-header {
  background: #f0f0f0;
  padding: 1rem;
  text-align: center;
  border-bottom: 1px solid #ccc;
}
.page-header h1 {
  font-size: 1.5rem;
  margin: 0;
  color: #003366;
}

main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 1rem;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

section {
  margin-bottom: 2rem;
}

h2 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: #003366;
}

img {
  max-width: 100%;
  border: 1px solid #ccc;
  border-radius: 6px;
  display: block;
  margin: 0 auto;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #f0f0f0;
  font-size: 0.9rem;
  color: #666;
}