/* 基本設定 */
:root {
  --brand-dark: #0b2345;
  --brand-accent: #00a3d9;
}
* { box-sizing: border-box; }
body {
  font-family: "Segoe UI","Hiragino Kaku Gothic ProN",sans-serif;
  margin: 0;
  padding: 0;
  background: #ffffff;
  color: #222;
  line-height: 1.6;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* ヘッダー（紺色バナー） */
header {
  background: var(--brand-dark);
  color: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,.08);
}
header .inner {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: .8rem 0;
}
nav ul { list-style: none; display: flex; gap: 1.25rem; margin: 0; padding: 0; }
nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}
nav a:hover, nav a.active { border-color: var(--brand-accent); }

@media (max-width: 640px) {
  header .inner { flex-direction: column; gap: .5rem; }
}

/* バナー下ロゴ */
.logo-bar {
  background: #fff;
  padding: .8rem 0;
  border-bottom: 1px solid #eee;
}
.site-logo {
  height: 120px;   /* 固定で120pxの高さ */
  width: auto;     /* 縦横比は自動維持 */
  display: block;
}

/* ヒーロー */
.hero {
  text-align: center;
  padding: 4rem 1.5rem;
  background: linear-gradient(to right,#fff,#eaf6fc);
}
.hero h1 {
  font-size: clamp(1.6rem,3.5vw,2.2rem);
  color: var(--brand-dark);
  margin: 0;
}
.hero p {
  margin-top: 1rem;
  font-size: 1.1rem;
  color: #333;
}
.btn {
  display: inline-block;
  margin-top: 1.5rem;
  padding: .75rem 1.25rem;
  background: var(--brand-accent);
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
}
.btn:hover { filter: brightness(.92); }

/* 本文 */
main { padding: 2rem 0; }
table {
  border-collapse: collapse;
  width: 100%;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
}
th, td {
  border: 1px solid #e6e6e6;
  padding: .75rem;
}
th {
  background: #f7f7f7;
  text-align: left;
  width: 28%;
}

/* フッター */
footer {
  background: #f2f2f2;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
  color: #555;
  font-size: .95rem;
}