@charset "UTF-8";
/* ========== ========== ==========
コラム記事 新レイアウト（v2）
templateParts/single-column.php 用
========== ========== ========== */

.c-col {
  --col-main: #6460c1;
  --col-main-dark: #4d49a3;
  --col-main-pale: #f3f2fb;
  --col-text: #2b2b33;
  --col-sub: #6b6b78;
  --col-line: #e4e3ee;
  --col-radius: 12px;
  color: var(--col-text);
}

.c-col__wrap {
  max-width: 1160px;
  margin-inline: auto;
  padding: 150px 24px 140px;
}

/* パンくず（共通部品 templateParts/breadcrumb.php） */
.c-col__wrap > .breadcrumb {
  margin-bottom: 20px;
}

/* 2カラム */
.c-col__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}

.c-col__article {
  min-width: 0;
  padding: 56px 64px 64px;
  background: #fff;
  border-radius: var(--col-radius);
  box-shadow: 0 2px 20px rgba(80, 76, 160, 0.08);
}

/* ---------- 記事ヘッダー ---------- */
.c-col__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--col-sub);
}

.c-col__cat {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  background: var(--col-main-pale);
  color: var(--col-main);
  font-weight: 700;
  text-decoration: none;
}

.c-col__title {
  margin: 0 0 24px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.c-col__byline {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--col-line);
}

.c-col__byline-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
}

.c-col__byline-text {
  display: flex;
  flex-direction: column;
  line-height: 1.4;
}

.c-col__byline-label {
  font-size: 12px;
  color: var(--col-sub);
}

.c-col__byline-name {
  font-size: 15px;
  font-weight: 700;
}

.c-col__thumb {
  margin: 32px 0 40px;
}

.c-col__thumb img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

/* ---------- 本文 ---------- */
.c-col__body {
  font-size: 16px;
  line-height: 1.95;
  letter-spacing: 0.04em;
}

.c-col__body > * + * {
  margin-top: 1.5em;
}

.c-col__body p {
  margin: 0;
}

.c-col__body > p + p {
  margin-top: 1.4em;
}

.c-col__body a {
  color: var(--col-main);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.c-col__body strong {
  font-weight: 700;
  background: linear-gradient(transparent 62%, #e6e3fb 62%);
}

.c-col__body h2 {
  margin: 80px 0 32px;
  padding: 16px 20px;
  border-left: 5px solid var(--col-main);
  border-radius: 0 6px 6px 0;
  background: var(--col-main-pale);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.02em;
}

.c-col__body h3 {
  position: relative;
  margin: 56px 0 24px;
  padding: 0 0 12px;
  border-bottom: 1px solid var(--col-line);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.6;
}

.c-col__body h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 64px;
  height: 3px;
  background: var(--col-main);
}

.c-col__body h4 {
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--col-main);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
}

.c-col__body h2 + *,
.c-col__body h3 + *,
.c-col__body h4 + * {
  margin-top: 0;
}

.c-col__body ul,
.c-col__body ol {
  padding: 20px 24px 20px 44px;
  border-radius: 8px;
  background: #f8f8fc;
}

.c-col__body ul li {
  list-style: disc;
}

.c-col__body ol li {
  list-style: decimal;
}

.c-col__body li {
  line-height: 1.8;
}

.c-col__body li + li {
  margin-top: 0.5em;
}

.c-col__body li::marker {
  color: var(--col-main);
}

.c-col__body img {
  max-width: 100%;
  height: auto;
}

.c-col__body hr {
  margin: 56px 0;
  border: none;
  border-top: 1px solid var(--col-line);
}

.c-col__body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.c-col__body th,
.c-col__body td {
  padding: 12px 14px;
  border: 1px solid var(--col-line);
  line-height: 1.7;
}

.c-col__body th {
  background: var(--col-main-pale);
  font-weight: 700;
}

/* 目次（Rich Table of Contents） */
.c-col__body .rtoc-mokuji-content {
  margin: 40px 0 0 !important;
  padding: 28px 32px !important;
  border: 1px solid var(--col-line) !important;
  border-radius: 10px !important;
  background: #fafafe !important;
}

.c-col__body .rtoc-mokuji-content::before,
.c-col__body .rtoc-mokuji-content::after {
  display: none !important;
}

.c-col__body .rtoc-mokuji-content ol,
.c-col__body .rtoc-mokuji-content ul {
  padding: 0;
  background: none;
}

.c-col__body .rtoc-mokuji-content li {
  list-style: none;
}

.c-col__body .rtoc-mokuji-content a {
  color: var(--col-text);
  text-decoration: none;
}

.c-col__body .rtoc-mokuji-content a:hover {
  color: var(--col-main);
  text-decoration: underline;
}

/* AIOSEO 著者ボックス */
.c-col__body .aioseo-author-bio-compact {
  margin-top: 64px;
}

/* ---------- 記事下 ---------- */
.c-col__cta {
  margin-top: 72px;
  padding: 36px 40px;
  border-radius: var(--col-radius);
  background: linear-gradient(135deg, #eeecfb 0%, #e6f2fd 100%);
  text-align: center;
}

.c-col__cta-label {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.5;
}

.c-col__cta-text {
  max-width: 34em;
  margin: 12px auto 0;
  font-size: 15px;
  line-height: 1.85;
  color: #44444f;
}

.c-col__cta-btns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
}

.c-col__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s;
}

.c-col__btn--main {
  background: var(--col-main);
  color: #fff;
}

.c-col__btn--main:hover {
  background: var(--col-main-dark);
}

.c-col__btn--sub {
  border: 1px solid var(--col-main);
  background: #fff;
  color: var(--col-main);
}

.c-col__btn--sub:hover {
  background: var(--col-main-pale);
}

.c-col__related {
  margin-top: 72px;
}

.c-col__section-title {
  margin-bottom: 24px;
  font-size: 20px;
  font-weight: 700;
}

.c-col__related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.c-col__card {
  display: block;
  color: var(--col-text);
  text-decoration: none;
}

.c-col__card-img {
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 8px;
  background: var(--col-main-pale);
}

.c-col__card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.c-col__card:hover .c-col__card-img img {
  transform: scale(1.04);
}

.c-col__card time {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  color: var(--col-sub);
}

.c-col__card-title {
  display: -webkit-box;
  margin-top: 4px;
  overflow: hidden;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.6;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.c-col__back {
  margin-top: 56px;
  text-align: center;
}

.c-col__back a {
  color: var(--col-main);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}

.c-col__back a::before {
  content: "← ";
}

/* ---------- サイドバー ---------- */
.c-col__side-inner {
  position: sticky;
  top: 110px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.c-col__side-box {
  padding: 24px;
  border-radius: var(--col-radius);
  background: #fff;
  box-shadow: 0 2px 20px rgba(80, 76, 160, 0.08);
}

.c-col__side-title {
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--col-line);
  font-size: 16px;
  font-weight: 700;
}

.c-col__side-list li + li {
  border-top: 1px dashed var(--col-line);
}

.c-col__side-item {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  color: var(--col-text);
  text-decoration: none;
}

.c-col__side-img {
  flex: 0 0 64px;
  width: 64px;
  height: 64px;
  overflow: hidden;
  border-radius: 6px;
  background: var(--col-main-pale);
}

.c-col__side-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.c-col__side-text {
  min-width: 0;
}

.c-col__side-text time {
  display: block;
  font-size: 11px;
  color: var(--col-sub);
}

.c-col__side-name {
  display: -webkit-box;
  margin-top: 2px;
  overflow: hidden;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.55;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.c-col__side-item:hover .c-col__side-name {
  color: var(--col-main);
}

.c-col__side-cta {
  background: linear-gradient(135deg, #eeecfb 0%, #e6f2fd 100%);
  text-align: center;
}

.c-col__side-cta-title {
  font-size: 17px;
  font-weight: 700;
}

.c-col__side-cta-text {
  margin: 8px 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: #44444f;
}

.c-col__side-cta .c-col__btn {
  width: 100%;
  min-height: 46px;
  font-size: 14px;
}

/* ---------- タブレット ---------- */
@media screen and (max-width: 1100px) {
  .c-col__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .c-col__article {
    max-width: 820px;
    width: 100%;
    margin-inline: auto;
  }

  .c-col__side {
    max-width: 820px;
    width: 100%;
    margin-inline: auto;
  }

  .c-col__side-inner {
    position: static;
  }
}

/* ---------- スマホ ---------- */
@media screen and (max-width: 768px) {
  .c-col__wrap {
    padding: 80px 0 80px;
  }

  .c-col__wrap > .breadcrumb {
    padding: 0 20px;
  }

  .c-col__grid {
    gap: 32px;
  }

  .c-col__article {
    padding: 28px 20px 40px;
    border-radius: 0;
    box-shadow: none;
  }

  .c-col__title {
    font-size: 22px;
    line-height: 1.55;
  }

  .c-col__byline {
    padding-bottom: 20px;
  }

  .c-col__thumb {
    margin: 24px 0 28px;
  }

  .c-col__body {
    font-size: 15.5px;
    line-height: 1.9;
    letter-spacing: 0.03em;
  }

  .c-col__body h2 {
    margin: 56px -20px 24px;
    padding: 14px 20px;
    border-radius: 0;
    font-size: 19px;
  }

  .c-col__body h3 {
    margin: 44px 0 20px;
    font-size: 17px;
  }

  .c-col__body h4 {
    font-size: 16px;
  }

  .c-col__body ul,
  .c-col__body ol {
    padding: 16px 16px 16px 36px;
  }

  .c-col__body .rtoc-mokuji-content {
    padding: 20px !important;
  }

  .c-col__cta {
    padding: 28px 20px;
  }

  .c-col__cta-label {
    font-size: 18px;
  }

  .c-col__cta-btns {
    flex-direction: column;
  }

  .c-col__btn {
    width: 100%;
  }

  .c-col__related-list {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .c-col__related-list li + li {
    border-top: 1px dashed var(--col-line);
  }

  .c-col__card {
    display: grid;
    grid-template-columns: 112px 1fr;
    grid-template-rows: auto 1fr;
    column-gap: 14px;
    padding: 14px 0;
  }

  .c-col__card-img {
    grid-row: 1 / 3;
  }

  .c-col__card time {
    margin-top: 0;
  }

  .c-col__side {
    padding: 0 20px;
  }
}

/* 目次の開閉ボタンが「CLOS / E」と折り返すのを防ぐ */
.c-col__body .rtoc_open_close {
  width: auto !important;
  padding: 2px 10px !important;
  white-space: nowrap;
}

/* 著者ページは廃止したため、AIOSEO著者ボックスのリンクを出さない */
.c-col__body .aioseo-author-bio-compact .author-bio-link {
  display: none;
}