/* =========================================================
   トップページ専用CSS（index.css）
   対象ページ：index.html
========================================================= */

/* ----------------------------------------
   01. メインビジュアル（余白調整）
---------------------------------------- */
#mainvisual {
  margin-bottom: 40px;
}

/* ----------------------------------------
   02. トップページ専用 article-block の余白調整
---------------------------------------- */
.article-block {
  margin-top: 40px;
}

/* ----------------------------------------
   03. トップページ専用 h2 の余白調整
---------------------------------------- */
.article-block h2 {
  margin-bottom: 20px;
}

/* ----------------------------------------
   04. SDGsリンクの hover 効果
---------------------------------------- */
.sustainable-article .sdgs a span:hover {
  background-color: #d0ebd6;
  transition: background-color 0.2s ease;
}

/* ----------------------------------------
   05. 持続可能循環リサイクルシステム
---------------------------------------- */
.sustainable-article .lead {
  font-weight: 600;
  margin-bottom: 18px;
  font-size: 0.98rem;
}

.sustainable-article .sdgs span {
  display: inline-block;
  margin-right: 6px;
  padding: 2px 8px;
  border-radius: 12px;
  background-color: #e8f5e9;
  color: #1b5e20;
  font-size: 0.8rem;
}

/* ----------------------------------------
   06. SDGs概要（SDGs 12/13/15）
---------------------------------------- */
.sdgs-summary section {
  margin-top: 24px;
  padding: 18px 20px;
  border-left: 4px solid #145a32;
  background-color: #f7faf7;
  border-radius: 6px;
}

.sdgs-summary section h3 span.code {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 10px;
  border-radius: 12px;
  background-color: #e8f5e9;
  color: #1b5e20;
  font-size: 0.8rem;
  font-weight: 600;
}

.sdgs-summary .note {
  margin-top: 24px;
  font-size: 0.9rem;
  color: #555;
}

/* ----------------------------------------
   07. 無機繊維製品とは
---------------------------------------- */
.inorganic-fiber-article section {
  margin-top: 24px;
  padding: 18px 20px;
  background-color: #f7faf7;
  border-left: 4px solid #145a32;
  border-radius: 6px;
}

.inorganic-fiber-article section h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
  color: #1b5e20;
}

.inorganic-fiber-article ul {
  margin: 8px 0 0 1.2em;
  padding: 0;
  font-size: 0.96rem;
}

/* ----------------------------------------
   08. 更新履歴（余白調整＋デザイン）
---------------------------------------- */
.update-history {
  margin-top: 50px;
}

.update-history ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.update-history li {
  padding: 14px 18px;
  margin-bottom: 12px;
  background-color: #f7faf7;
  border-left: 4px solid #145a32;
  border-radius: 6px;
}

.update-history .date {
  font-weight: 600;
  color: #145a32;
  margin-right: 8px;
}

/* ----------------------------------------
   09. トップページ専用の署名位置調整
---------------------------------------- */
.sustainable-article .signature {
  margin-top: 30px;
}

/*    */
.catchcopy-block {
  text-align: center;
  padding: 40px 20px;
}

.catchcopy-ja {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.catchcopy-sub {
  font-size: 1.4rem;
  color: #555;
}