/* ========================================
   お役立ちコラム (renewal-column.php)
   カラー: 青 #007acc / 紺 #000000 / オレンジ #ff7f32 / 淡背景 #f2f9ff
   ======================================== */

.column-layout {
  display: flex;
  align-items: flex-start;
}

.breadcrumb {
  padding-top: 0;
}

/* ========================================
   サイドバー：新着記事一覧
   ======================================== */

.column-sidebar {
  flex: 0 0 500px;
  max-width: 500px;
  padding: 70px 60px;
  position: sticky;
  top: 50px;
  align-self: flex-start;
  max-height: calc(100vh - 70px);
  overflow-y: auto;
}

.column-sidebar-title {
  border-left: 5px solid #007acc;
  padding-left: 12px;
  margin-bottom: 25px;
}

.column-sidebar-title h2 {
  font-size: 3rem;
  font-weight: 700;
  color: #000000;
  line-height: 1.3;
}

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

.column-article-list > li {
  border-bottom: 1px solid #dce3ea;
  padding: 20px 0;
}

.column-article-list > li:first-child {
  padding-top: 0;
}

.column-article-list a {
  display: block;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.column-article-list a:hover {
  opacity: 0.7;
}

/* 表示中の記事（サイドバー） */
.column-article-list > li.is-current a {
  opacity: 0.5;
  pointer-events: none;
}

.column-article-date {
  display: block;
  color: #6b6b6b;
  font-family: "Noto Sans JP";
  font-size: 2.2rem;
  font-style: normal;
  font-weight: 500;
}

.column-article-name {
  font-size: 2rem;
  font-weight: 700;
  color: #000000;
  line-height: 1.5;
  margin-bottom: 10px;
}

/* ========================================
   タグ・バッジ
   ======================================== */

.column-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.column-tag {
  display: inline-block;
  background: #007acc;
  color: #fff;
  font-size: 1.8rem;
  letter-spacing: 3.6px;
  font-weight: 500;
  line-height: 1;
  padding: 9px 25px;
  padding-right: 21px;
  border-radius: 2px;
}

.column-sidebar .column-tag {
  font-size: 1.6rem;
  padding: 6px 15px;
  padding-right: 12px;
  letter-spacing: 3.2px;
}

.column-badge {
  display: inline-block;
  background: #ff7f32;
  color: #fff;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
  padding: 7px 14px;
  border-radius: 2px;
}

/* ========================================
   メイン：記事本文
   ======================================== */

.column-main {
  flex: 1 1 auto;
  min-width: 0;
  padding: 70px 100px;
  background-color: #e8f0fa;
}

.column-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 18px;
}

.column-dates {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 2.2rem;
  color: #777;
}

.column-dates > span {
  position: relative;
}

.column-dates > span:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 1.2em;
  background: #ccc;
}

.column-main > .column-tags {
  margin-top: 50px;
  margin-bottom: 30px;
}

.column-article-title {
  font-size: 3rem;
  font-weight: 700;
  color: #000000;
  line-height: 1.4;
  margin-bottom: 30px;
}

.column-readtime {
  display: inline-block;
  font-size: 2.2rem;
  color: #000000;
  border: 1px solid #007acc;
  background-color: #fff;
  padding: 8px 16px;
  border-radius: 2px;
}

.column-hero {
  margin: 35px 0;
}

.column-hero img {
  width: 100%;
  height: auto;
  display: block;
}

/* ========================================
   目次
   ======================================== */

.column-toc {
  border: 2px solid #007acc;
  background: #fff;
  padding: 32px 40px;
  /* hero 画像が無くても直前の要素と余白が空くよう上マージンを確保。
     hero ありの場合は .column-hero の下マージンと相殺され二重にならない。 */
  margin-top: 35px;
  margin-bottom: 50px;
}

.column-toc-title {
  font-size: 2.6rem;
  font-weight: 700;
  color: #000000;
  line-height: 1.2;
  margin-bottom: 22px;
  border-left: 5px solid #007acc;
  padding-left: 14px;
}

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

.column-toc li:not(:last-child) {
  margin-bottom: 16px;
}

.column-toc a {
  position: relative;
  display: inline-block;
  padding-left: 28px;
  font-size: 2.4rem;
  color: #000000;
  text-decoration: underline;
  transition: color 0.3s ease;
}

.column-toc a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #000000;
}

.column-toc a:hover {
  color: #ff7f32;
}

/* ========================================
   本文
   ======================================== */

/* 目次が無い記事でも、hero の有無に関わらず本文前に余白が空くようにする。
   目次あり(.column-toc margin-bottom:50px)・hero あり(margin:35px 0)の場合は相殺される。 */
.column-body {
  margin-top: 35px;
}

.column-body section {
  margin-bottom: 50px;
}

.column-body h3 {
  font-size: 2.7rem;
  font-weight: 700;
  color: #000000;
  line-height: 1.4;
  margin-bottom: 22px;
}

.column-body h4 {
  font-size: 2rem;
  font-weight: 700;
  color: #000000;
  line-height: 1.5;
  margin: 30px 0 12px;
}

.column-body p {
  font-size: 2rem;
  line-height: 1.9;
  color: #333;
}

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

.column-body strong {
  font-weight: 700;
  color: #002244;
}

.column-body a {
  color: #007acc;
  text-decoration: underline;
  transition: color 0.3s ease;
}

.column-body a:hover {
  color: #ff7f32;
}

/* ========================================
   比較テーブル
   ======================================== */

.column-table-wrap {
  overflow-x: auto;
  margin: 25px 0;
  -webkit-overflow-scrolling: touch;
}

/* 「横スクロールできます」注意書き（既定は非表示。スマホ時のみ表示）
   sticky+left:0 で、表を横スクロールしても文言は左端に固定される。 */
.column-table-wrap::before {
  content: "← 表は横にスクロールできます →";
  display: none;
  position: sticky;
  left: 0;
  width: max-content;
  margin-bottom: 8px;
  color: #007acc;
  font-weight: 700;
  font-size: 1.6rem;
  line-height: 1.4;
}

.column-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 2rem;
  border: 1px solid #000;
}

.column-table th,
.column-table td {
  border-bottom: 1px solid #002244;
  padding: 16px 20px;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}

/* 列の区切り線（外周の左右・上には引かない＝内側の罫線＋下罫線のみ） */
.column-table th + th,
.column-table td + td {
  border-left: 1px solid #002244;
}

.column-table thead th {
  background: #f6f6f6;
  color: #002244;
  font-weight: 700;
  white-space: nowrap;
}

.column-table tbody td {
  background: #fff;
  color: #333;
}

.column-table tbody td:first-child {
  color: #002244;
  white-space: nowrap;
}

/* ========================================
   まとめ箇条書き
   ======================================== */

.column-summary-list {
  margin: 20px 0;
  padding: 0;
  list-style: none;
}

.column-summary-list li {
  position: relative;
  padding-left: 30px;
  font-size: 2rem;
  line-height: 1.9;
  color: #333;
}

.column-summary-list li + li {
  margin-top: 10px;
}

/* 行頭のドット（アクセント青。1行目の文字の高さに合わせて配置） */
.column-summary-list li::before {
  content: "";
  position: absolute;
  left: 8px;
  top: calc(0.95em - 4px);
  width: 8px;
  height: 8px;
  background: #007acc;
  border-radius: 50%;
}

/* ========================================
   CTAボックス
   ======================================== */

.column-cta {
  background: #eaf2fa;
  padding: 60px 0;
  border-top: 2px solid rgba(153, 153, 153, 0.4);
  border-bottom: 2px solid rgba(153, 153, 153, 0.4);
}

.column-cta-title {
  border-left: 5px solid #007acc;
  padding-left: 14px;
  margin-bottom: 22px;
}

.column-cta-title h3 {
  font-size: 2.4rem;
  font-weight: 700;
  color: #002244;
  line-height: 1.4;
}

.column-cta p {
  font-size: 2rem;
  line-height: 1.9;
  color: #333;
  margin-bottom: 14px;
}

.column-cta-list {
  list-style: none;
  margin: 18px 0;
  padding: 0;
}

.column-cta-list li {
  position: relative;
  padding-left: 28px;
  font-size: 2.4rem;
  line-height: 1.7;
  font-weight: 500;
  color: #002244;
  margin-bottom: 10px;
}

.column-cta-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 20px;
  height: 20px;
  background: #007acc;
}

.column-cta-lead {
  color: #002244 !important;
  font-weight: 700;
  margin-top: 28px !important;
}

/* 矢印は従来の青のまま、テキストのみ #002244 */
.column-cta-lead-arrow {
  color: #007acc;
}

.column-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  margin-top: 10px;
}

.column-cta .column-cta-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-width: 290px;
  padding: 18px 30px;
  background: #002244;
  color: #fff;
  font-size: 2.2rem;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid #002244;
  transition: all 0.3s ease;
}

.column-cta-button img {
  width: 24px;
  height: auto;
}

.column-cta .column-cta-button:hover {
  background: #fff;
  color: #000000;
}

.column-cta-button:hover img {
  filter: brightness(0) saturate(100%) invert(9%) sepia(46%) saturate(2698%) hue-rotate(196deg) brightness(95%)
    contrast(101%);
}

/* ========================================
   前後の記事ナビ
   ======================================== */

.column-pager {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 40px 0;
}

.column-pager-button {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 220px;
  padding: 16px 28px;
  border: 1px solid #0f4c94;
  color: #000000;
  font-size: 2.4rem;
  font-weight: 500;
  text-decoration: none;
  background: #fff;
  transition: all 0.3s ease;
}

.column-pager-next {
  margin-left: auto;
  justify-content: flex-end;
}

.column-pager-button img {
  width: 16px;
  height: auto;
}

.column-pager-prev img {
  transform: rotate(180deg);
}

.column-pager-button:hover {
  background: #0f4c94;
  color: #fff;
}

.column-pager-button:hover img {
  filter: brightness(0) invert(1);
}

/* ========================================
   レスポンシブ
   ======================================== */
@media screen and (max-width: 1400px) {
  .column-sidebar {
    flex: 0 0 350px;
    max-width: 350px;
    padding: 70px 30px;
  }

  .column-main {
    padding: 70px 40px;
  }
}

@media screen and (max-width: 1100px) {
  /* 2カラム → 1カラム（メインを先頭、サイドバーを下に） */
  .column-layout {
    flex-direction: column;
    gap: 20px;
  }

  .column-sidebar {
    order: 2;
    flex: 1 1 auto;
    max-width: 100%;
    width: 100%;
    position: static;
    max-height: none;
    overflow-y: visible;
    padding: 50px 40px;
  }

  .column-main {
    order: 1;
    width: 100%;
    padding: 50px 40px;
  }
}

@media screen and (max-width: 768px) {
  .column-layout {
    padding-bottom: 50px;
  }

  .column-main {
    padding: 40px 24px;
  }

  .column-sidebar {
    padding: 36px 24px;
  }

  /* サイドバー */
  .column-sidebar-title h2 {
    font-size: 2.5rem;
  }

  .column-article-date {
    font-size: 1.8rem;
  }

  .column-article-name {
    font-size: 1.8rem;
  }

  /* 記事ヘッダー */
  .column-dates {
    font-size: 1.7rem;
  }

  .column-readtime {
    font-size: 1.7rem;
  }

  .column-article-title {
    font-size: 2.5rem;
  }

  /* 目次 */
  .column-toc {
    padding: 20px;
    margin-bottom: 40px;
  }

  .column-main > .column-tags {
    margin-top: 10px;
    margin-bottom: 15px;
  }

  /* タグを少し小さく（16px 未満にはしない） */
  .column-tag {
    font-size: 1.6rem;
    padding: 6px 9px;
    padding-right: 7px;
    letter-spacing: 3.2px;
  }

  .column-toc-title {
    font-size: 2.2rem;
  }

  .column-toc a {
    font-size: 2rem;
    padding-left: 19px;
  }

  .column-toc a::before {
    width: 9px;
    height: 9px;
  }

  .column-body section {
    margin-bottom: 35px;
  }

  /* 本文 */
  .column-body h3 {
    font-size: 2.3rem;
    margin-bottom: 13px;
  }

  .column-body h4 {
    font-size: 1.8rem;
    margin: 10px 0 0px;
  }

  .column-body p {
    font-size: 1.8rem;
  }

  .column-summary-list li {
    font-size: 1.8rem;
  }

  /* テーブルは横スクロール（潰さない）。注意書きをスマホ時のみ表示 */
  .column-table-wrap::before {
    display: block;
  }

  .column-table {
    font-size: 1.6rem;
    width: auto;
    min-width: 600px;
  }

  .column-table th,
  .column-table td {
    padding: 10px 12px;
  }

  /* CTA */
  .column-cta {
    padding: 30px 0;
  }

  .column-cta-title h3 {
    font-size: 2.1rem;
  }

  .column-cta p {
    font-size: 1.8rem;
  }

  .column-cta-list li {
    font-size: 2rem;
  }

  .column-cta-list li::before {
    width: 15px;
    height: 15px;
  }

  .column-cta-buttons {
    flex-direction: column;
    align-items: stretch;
    gap: 15px;
  }

  .column-cta .column-cta-button {
    min-width: 0;
    width: 100%;
    font-size: 2rem;
  }

  .column-article-list {
    height: 300px;
    overflow-y: scroll;
    border: 1px solid #0f4c94;
    padding: 12px 10px;
  }

  .column-article-list > li {
    padding: 12px 0;
  }

  /* 前後ナビ：縦積み */
  .column-pager {
    flex-direction: column;
    padding: 20px;
  }

  .column-pager-button {
    width: 100%;
    min-width: 0;
    justify-content: center;
    font-size: 2rem;
  }

  .column-pager-button img {
    width: 10px;
  }

  .column-pager-next {
    margin-left: 0;
    justify-content: center;
  }
}

@media screen and (max-width: 480px) {
  .column-main {
    padding: 28px 16px;
  }

  .column-sidebar {
    padding: 26px 18px;
  }

  /* サイドバー */
  .column-sidebar-title h2 {
    font-size: 2.2rem;
  }

  .column-article-date {
    font-size: 1.7rem;
  }

  .column-article-name {
    font-size: 1.7rem;
  }

  /* 記事ヘッダー */
  .column-meta {
    gap: 10px;
  }

  .column-dates {
    font-size: 1.6rem;
  }

  .column-readtime {
    font-size: 1.6rem;
  }

  .column-article-title {
    font-size: 2.2rem;
    margin-bottom: 15px;
  }

  /* 目次 */
  .column-toc-title {
    font-size: 2rem;
  }

  .column-toc a {
    font-size: 1.9rem;
  }

  /* 本文 */
  .column-body h3 {
    font-size: 2.1rem;
  }

  .column-body h4 {
    font-size: 1.7rem;
  }

  .column-body p {
    font-size: 1.7rem;
  }

  .column-summary-list li {
    font-size: 1.7rem;
  }

  .column-table {
    font-size: 1.5rem;
  }

  /* CTA */
  .column-cta-title h3 {
    font-size: 1.9rem;
  }

  .column-cta p {
    font-size: 1.7rem;
  }

  .column-cta-list li {
    font-size: 1.8rem;
  }

  .column-cta .column-cta-button {
    font-size: 1.9rem;
  }

  /* 前後ナビ */
  .column-pager-button {
    font-size: 1.9rem;
  }
}