/* コラム詳細ページのスタイル - 再構築版 */

/* ======== ヒーローセクション ======== */
.site-hero-bg {
  position: relative;
  height: 120px;
  min-height: 0; /* base.cssのmin-heightをオーバーライド */
  padding: 0; /* base.cssのpaddingをオーバーライド */
  background-size: cover;
  background-position: center;
  margin-bottom: 40px;
}

.site-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.6));
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-hero-content {
  text-align: center;
  color: #fff;
  padding: 0 20px;
}

.site-hero-content h1 {
  font-size: 36px;
  font-weight: bold;
  margin: 0;
  color: #fff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
}

/* ======== コンテナとレイアウト ======== */
.column-detail {
  padding: 40px 0;
  background-color: #f8f8f8;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.column-detail__content-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
}

.column-detail__main {
  flex: 1;
  min-width: 0;
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  padding: 40px;
}

.column-detail__sidebar {
  width: 300px;
}

/* ======== 1. 冒頭セクション ======== */
.column-detail__intro {
  margin-bottom: 40px;
  border-bottom: 1px solid #eee;
  padding-bottom: 30px;
}

.column-detail__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 25px;
}

.column-detail__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.column-detail__date {
  font-size: 14px;
  color: #666;
}

.column-detail__categories {
  display: flex;
  gap: 10px;
}

.column-tag {
  display: inline-block;
  padding: 4px 12px;
  background-color: #EF454A;
  color: #fff;
  border-radius: 4px;
  font-size: 12px;
  text-decoration: none;
  transition: background-color 0.2s;
}

.column-tag:hover {
  background-color: #d63c42;
}

/* SNS共有ボタン - 冒頭位置 */
.column-detail__share {
  display: flex;
  align-items: center;
  gap: 15px;
}

.column-detail__share-top {
  margin-left: auto;
}

.column-detail__share-label {
  font-size: 14px;
  color: #666;
}

.column-detail__share-list {
  display: flex;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  transition: opacity 0.2s;
}

.share-btn:hover {
  opacity: 0.8;
}

.share-x {
  background-color: #000;
}

.share-facebook {
  background-color: #4267B2;
}

.share-linkedin {
  background-color: #0A66C2;
}

.share-btn i {
  color: #fff;
}

/* リード文 */
.column-detail__introduction {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 25px;
  color: #444;
  font-weight: 500;
}

/* 記事のポイント */
.column-detail__lead {
  background-color: #f8f8f8;
  border-left: 4px solid #EF454A;
  padding: 20px;
  margin-bottom: 30px;
}

.column-detail__lead p:first-child {
  margin-top: 0;
  font-weight: bold;
  color: #333;
}

.column-detail__lead p:last-child {
  margin-bottom: 0;
}

.column-detail__lead ul {
  margin: 15px 0 0;
  padding-left: 20px;
}

.column-detail__lead li {
  margin-bottom: 8px;
}

.column-detail__lead li:last-child {
  margin-bottom: 0;
}

/* 目次セクション */
.column-detail__toc {
  margin-bottom: 20px;
  background-color: #f8f8f8;
  border-radius: 8px;
  padding: 20px;
}

.column-detail__toc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.column-detail__toc-title {
  font-size: 18px;
  margin: 0;
  font-weight: bold;
}

.column-detail__toc-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
  width: 30px;
  height: 30px;
  position: relative;
}

.column-detail__toc-toggle-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 15px;
  height: 2px;
  background-color: #333;
}

.column-detail__toc-toggle-icon::before,
.column-detail__toc-toggle-icon::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: #333;
  transition: transform 0.2s;
}

.column-detail__toc-toggle-icon::before {
  transform: rotate(90deg);
}

.column-detail__toc-toggle.is-active .column-detail__toc-toggle-icon::before {
  transform: rotate(0);
}

.column-detail__toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.column-detail__toc-list-item {
  margin-bottom: 10px;
}

.column-detail__toc-list-item--sub {
  margin-left: 20px;
}

.column-detail__toc-link {
  color: #333;
  text-decoration: none;
  font-size: 14px;
  display: inline-block;
  padding: 3px 0;
  border-bottom: 1px solid transparent;
  transition: all 0.2s;
}

.column-detail__toc-link:hover,
.column-detail__toc-link.is-active {
  color: #EF454A;
  border-bottom-color: #EF454A;
}

/* ======== 2. 本文セクション ======== */
.column-detail__body {
  font-size: 16px;
  line-height: 1.8;
  color: #333;
  margin-bottom: 50px;
}

.column-detail__body h2 {
  font-size: 24px;
  line-height: 1.4;
  margin: 40px 0 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #EF454A;
}

.column-detail__body h2:first-child {
  margin-top: 0;
}

.column-detail__body h3 {
  font-size: 20px;
  line-height: 1.4;
  margin: 30px 0 15px;
  padding-left: 12px;
  border-left: 4px solid #EF454A;
}

.column-detail__body h4 {
  font-size: 18px;
  line-height: 1.4;
  margin: 25px 0 15px;
}

.column-detail__body p {
  margin: 0 0 20px;
}

.column-detail__body ul,
.column-detail__body ol {
  margin: 0 0 20px;
  padding-left: 25px;
}

.column-detail__body li {
  margin-bottom: 10px;
}

.column-detail__body a {
  color: #2E86C1;
  text-decoration: underline;
}

.column-detail__body a:hover {
  text-decoration: none;
}

.column-detail__body strong {
  font-weight: bold;
}

.point-box {
  border-radius: 8px;
  margin: 10px 0;
  position: relative;
}
.point-title {
  color: #2B6CB0;
  font-size: 18px;
  margin-top: 0;
  margin-bottom: 12px;
  font-weight: bold;
  display: flex;
  align-items: center;
  gap: 8px;
}
.point-content {
  margin: 0;
  color: #1A365D;
  line-height: 1.6;
  background-color: #BEE3F8;
  padding: 12px 15px;
  border-radius: 6px;
  font-weight: 500;
  border-left: 4px solid #2B6CB0;
}

.column-detail__image {
  margin: 30px 0;
  text-align: center;
}

.column-detail__image img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.column-detail__image figcaption {
  margin-top: 10px;
  font-size: 14px;
  color: #666;
}

/* ======== 3. まとめセクション ======== */
.column-detail__summary {
  background-color: #f8f8f8;
  border-radius: 8px;
  padding: 30px;
  margin-top: 40px;
}

.column-detail__summary h2 {
  font-size: 24px;
  margin-top: 0;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #EF454A;
}

.summary-content {
  margin-bottom: 30px;
}

.summary-content p:last-child {
  margin-bottom: 0;
}

.related-services {
  margin-top: 30px;
  text-align: center;
}

.related-services h3 {
  font-size: 18px;
  margin-bottom: 15px;
}

.related-services__list {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
}

.related-service-btn {
  display: inline-block;
  background-color: #EF454A;
  color: white;
  padding: 10px 20px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.3s;
}

.related-service-btn:hover {
  background-color: #d63c42;
}

/* ======== サイドバー ======== */
.sidebar-section {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  padding: 25px;
  margin-bottom: 30px;
}

.sidebar-section__title {
  font-size: 18px;
  margin: 0 0 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #EF454A;
}

/* CTA */
.sidebar-cta__item {
  margin-bottom: 20px;
}

.sidebar-cta__item:last-child {
  margin-bottom: 0;
}

.sidebar-cta__image {
  margin-bottom: 10px;
  border-radius: 4px;
  overflow: hidden;
}

.sidebar-cta__image img {
  width: 100%;
  height: auto;
  display: block;
}

.sidebar-cta__title {
  font-size: 16px;
  margin: 0 0 10px;
}

.sidebar-cta__desc {
  font-size: 14px;
  color: #666;
  margin: 0 0 10px;
}

.sidebar-cta__link {
  display: inline-block;
  color: #2E86C1;
  font-size: 14px;
  text-decoration: none;
  font-weight: bold;
}

.sidebar-cta__link:hover {
  text-decoration: underline;
}

/* カテゴリ一覧 */
.sidebar-categories__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-categories__list li {
  margin-bottom: 10px;
  border-bottom: 1px solid #eee;
  padding-bottom: 10px;
}

.sidebar-categories__list li:last-child {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.sidebar-categories__list a {
  color: #333;
  text-decoration: none;
  display: block;
  transition: color 0.2s;
}

.sidebar-categories__list a:hover {
  color: #EF454A;
}

/* タグクラウド */
.sidebar-tags__cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sidebar-tags__cloud a {
  display: inline-block;
  padding: 5px 10px;
  background-color: #f8f8f8;
  color: #333;
  text-decoration: none;
  border-radius: 4px;
  font-size: 13px;
  transition: background-color 0.2s, color 0.2s;
}

.sidebar-tags__cloud a:hover {
  background-color: #EF454A;
  color: #fff;
}

.tag-size-1 { font-size: 12px; }
.tag-size-2 { font-size: 13px; }
.tag-size-3 { font-size: 14px; }
.tag-size-4 { font-size: 15px; }
.tag-size-5 { font-size: 16px; }

/* 最新コラム */
.sidebar-recent__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-recent__item {
  margin-bottom: 15px;
  padding-bottom: 15px;
  border-bottom: 1px solid #eee;
}

.sidebar-recent__item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.sidebar-recent__link {
  display: flex;
  gap: 15px;
  color: #333;
  text-decoration: none;
}

.sidebar-recent__image {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  border-radius: 4px;
  overflow: hidden;
}

.sidebar-recent__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sidebar-recent__content {
  flex: 1;
  min-width: 0;
}

.sidebar-recent__title {
  margin: 0 0 5px;
  font-weight: bold;
  font-size: 14px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.sidebar-recent__date {
  font-size: 12px;
  color: #666;
  margin: 0;
}

/* レスポンシブ対応 */
@media screen and (max-width: 1024px) {
  .column-detail__content-wrapper {
    flex-direction: column;
  }
  
  .column-detail__sidebar {
    width: 100%;
  }
  
  .column-detail__header {
    flex-direction: column;
    gap: 15px;
  }
  
  .column-detail__share-top {
    margin-left: 0;
  }
}

@media screen and (max-width: 768px) {
  .site-hero-bg {
    height: 100px;
  }
  
  .site-hero-content h1 {
    font-size: 28px;
  }
  
  .column-detail__main {
    padding: 25px;
  }
  
  .column-detail__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  
  .column-detail__introduction {
    font-size: 16px;
  }
  
  .column-detail__body h2 {
    font-size: 22px;
  }
  
  .column-detail__body h3 {
    font-size: 18px;
  }
  
  .column-detail__toc-toggle {
    display: block;
  }
  
  .column-detail__toc-content {
    display: none;
  }
  
  .column-detail__toc-content.is-open {
    display: block;
  }
  
  .column-detail__summary {
    padding: 20px;
  }
  
  .related-services__list {
    flex-direction: column;
    gap: 10px;
  }
}

@media screen and (max-width: 480px) {
  .site-hero-bg {
    height: 80px;
  }
  
  .site-hero-content h1 {
    font-size: 24px;
  }
  
  .column-detail__main {
    padding: 20px 15px;
  }
  
  .column-detail__lead {
    padding: 15px;
  }
  
  .column-detail__toc {
    padding: 15px;
  }
  
  .column-detail__body h2 {
    font-size: 20px;
  }
  
  .column-detail__summary {
    padding: 15px;
  }
}