@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');

/* ─── 基本 ─── */
body {
  font-family: "Yu Gothic", "Noto Sans JP", sans-serif;
  background: #f8f9fa;
  margin: 0;
  padding: 0;
  line-height: 1.8;
  color: #222;
}

a { color: #456ffc; text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: 900px;
  margin: 40px auto;
  padding: 0 16px;
}

.welcome-box {
  background: #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  overflow: hidden;
  animation: fadeIn 0.8s ease;
}

/* ─── ヘッダー3段バー ─── */
.welcome-title {
  background: #456ffc;
  color: #fff;
  padding: 12px;
  font-size: 20px;
  text-align: center;
}

.welcome-message {
  background: #fe81ac;
  color: #fff;
  padding: 8px 12px;
  font-size: 16px;
  text-align: center;
  line-height: 1.4;
  margin: 4px 0;
}

.welcome-dept {
  background: #456ffc;
  color: #fff;
  padding: 10px;
  font-size: 16px;
  text-align: center;
}

/* ─── パンくず ─── */
.breadcrumb {
  font-size: 13px;
  color: #666;
  padding: 12px 24px;
  border-bottom: 1px solid #eee;
}
.breadcrumb a { color: #456ffc; }

/* ─── 記事タイトルバー ─── */
.article-header {
  background: #1a3a93;
  color: #fff;
  padding: 16px 24px;
}
.article-title {
  font-size: 22px;
  margin: 0;
  font-weight: 700;
  line-height: 1.4;
}
.article-title small {
  display: block;
  font-size: 13px;
  font-weight: 400;
  opacity: 0.8;
  margin-top: 4px;
}

/* ─── 記事本文 ─── */
.content-area {
  padding: 24px;
}
.content-area h2 {
  font-size: 20px;
  color: #333;
  margin: 1.5rem 0 0.6rem;
  padding-bottom: 6px;
  border-bottom: 2px solid #456ffc;
}
.content-area h3 {
  font-size: 17px;
  color: #456ffc;
  margin: 1.2rem 0 0.5rem;
}
.content-area p {
  margin: 0 0 14px;
  font-size: 15px;
}
.content-area img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 8px 0;
}

/* ─── 強調ボックス ─── */
.emph {
  background: #f3f9ff;
  border: 1px solid #cfe8ff;
  border-radius: 6px;
  padding: 16px;
  margin: 1rem 0;
}
.emph h2 {
  margin-top: 0;
}

/* ─── テーブル ─── */
.content-area table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0 18px;
  font-size: 14px;
}
.content-area th {
  background: #456ffc;
  color: #fff;
  padding: 8px 12px;
  text-align: left;
  font-weight: 700;
}
.content-area td {
  padding: 8px 12px;
  border-bottom: 1px solid #e2e8f0;
  vertical-align: top;
}
.content-area tr:nth-child(even) td {
  background: #f7f9ff;
}
.content-area td strong {
  color: #1a3a93;
}

/* ─── フッター ─── */
.page-footer {
  background: #456ffc;
  display: flex;
  justify-content: center;
  gap: 36px;
  padding: 12px 16px;
}
.page-footer a {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
}
.page-footer a:hover { color: #fff; text-decoration: none; }

/* ─── レスポンシブ ─── */
@media screen and (max-width: 600px) {
  .wrap { margin: 20px auto; padding: 0 12px; }
  .content-area { padding: 16px; }
  .article-header { padding: 14px 16px; }
  .article-title { font-size: 19px; }
  .content-area h2 { font-size: 18px; }
  .content-area table { font-size: 13px; }
  .content-area th, .content-area td { padding: 6px 8px; }
}

/* ─── 印刷 ─── */
@media print {
  .welcome-title, .welcome-message, .welcome-dept,
  .page-footer, .breadcrumb { display: none; }
  .content-area { padding: 0; }
}

/* ─── アニメーション ─── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}