/* ===== News Page Styles - Figma Design ===== */

:root {
  --nd-primary: #1D6DE5;
  --nd-text: #1A1A1A;
  --nd-text-muted: #6B7280;
  --nd-border: #E5E7EB;
  --nd-bg: #F9FAFB;
  --nd-radius: 8px;
  --nd-radius-sm: 4px;
}

/* ===== サイトヘッダー ===== */
.nd-site-header {
  background: #fff;
  border-bottom: 1px solid var(--nd-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nd-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nd-header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.nd-logo-icon { flex-shrink: 0; }
.nd-logo-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--nd-text);
  letter-spacing: 0.02em;
}
.nd-header-mypage {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  width: auto;
  min-width: 112px;
  height: 28px;
  padding: 0 10px 0 8px;
  gap: 2px;
  border: 1px solid #4A4A4A;
  border-radius: 32px;
  opacity: 1;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 14px;
  line-height: 100%;
  letter-spacing: 0;
  color: #4A4A4A;
  text-decoration: none;
  white-space: nowrap;
  transition: all .2s;
}
.nd-header-mypage svg { flex-shrink: 0; }
.nd-header-mypage:hover {
  border-color: var(--nd-primary);
  color: var(--nd-primary);
}

/* ===== サイトフッター ===== */
.nd-site-footer {
  background: #fff;
  border-top: 1px solid var(--nd-border);
  padding: 48px 0 0;
  margin-top: 80px;
}
.nd-footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  padding-bottom: 20px;
}
.nd-footer-brand { min-width: 160px; }
.nd-footer-tagline {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 13px;
  line-height: 100%;
  letter-spacing: 0;
  color: #71717A;
  margin: 10px 0 0;
}
.nd-footer-nav {
  display: flex;
  gap: 56px;
}

.nd-footer-col__title {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 700;
  font-size: 13px;
  line-height: 100%;
  letter-spacing: 0;
  color: #323232;
  margin: 0 0 12px;
}
.nd-footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.nd-footer-col ul li { margin: 0; }
.nd-footer-col ul li a {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 13px;
  line-height: 100%;
  letter-spacing: 0;
  color: #71717A;
  text-decoration: none;
  transition: color .2s;
}
.nd-footer-col ul li a:hover { color: var(--nd-primary); }
.nd-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid var(--nd-border);
}
.nd-footer-copy {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 12px;
  line-height: 100%;
  letter-spacing: 0;
  color: #A1A1AA;
  margin: 0;
}
.nd-footer-legal { display: flex; gap: 20px; }
.nd-footer-legal a {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 12px;
  line-height: 100%;
  letter-spacing: 0;
  color: #71717A;
  text-decoration: none;
  transition: color .2s;
}
.nd-footer-legal a:hover { color: var(--nd-primary); }
@media (max-width: 900px) {
  .nd-footer-top { flex-direction: column; }
  .nd-footer-brand { text-align: center; align-self: center; }
  .nd-footer-nav { flex-wrap: wrap; gap: 28px; }
}
@media (max-width: 480px) {
  .nd-footer-nav { flex-direction: column; gap: 24px; }
  .nd-footer-col__title { font-size: 16px; }
  .nd-footer-bottom { flex-direction: column; gap: 12px; align-items: flex-start; }
}

/* ===== ラッパー・コンテナ ===== */
.nd-news-wrap { background: #fff; min-height: 60vh; padding: 0 0 80px; }
.nd-container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ===== パンくずリスト ===== */
.nd-breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--nd-text-muted); padding: 20px 0 16px; }
.nd-breadcrumb a {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 14px;
  line-height: 100%;
  letter-spacing: 0;
  white-space: nowrap;
  text-decoration: underline;
  text-decoration-style: solid;
  text-underline-offset: 3px;
  text-decoration-thickness: auto;
  text-decoration-skip-ink: auto;
  color: #4A4A4A;
}
.nd-breadcrumb a:hover { color: var(--nd-primary); text-decoration: underline; }
.nd-breadcrumb__sep { color: #9CA3AF; }
.nd-breadcrumb__current {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 14px;
  line-height: 100%;
  letter-spacing: 0;
  color: #4A4A4A;
}

/* ===== ページタイトル ===== */
.nd-page-title { margin-bottom: 28px; }
.nd-page-title__en { font-family: 'Inter', sans-serif; font-size: 13px; font-weight: 600; line-height: 100%; letter-spacing: 1.5px; color: #2E76EB; margin: 0 0 4px; text-transform: uppercase; }
.nd-page-title__ja { font-family: 'Inter', sans-serif; font-size: 26px; font-weight: 700; line-height: 100%; letter-spacing: 0; color: #323232; margin: 0; }

/* ===== カテゴリタブ ===== */
.nd-cat-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.nd-cat-tab {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  gap: 4px;
  border-radius: 32px;
  border: 1px solid #D9D9D9;
  background: #FFFFFF;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 14px;
  line-height: 100%;
  letter-spacing: 0;
  color: #4A4A4A;
  text-decoration: none;
  transition: all .2s;
}
.nd-cat-tab:hover { border-color: var(--nd-primary); color: var(--nd-primary); }
.nd-cat-tab--active { background: #2E76EB; border-color: #2E76EB; color: #FFFFFF; }
.nd-cat-tab--active:hover { background: #2E76EB; border-color: #2E76EB; color: #FFFFFF; }

/* ===== 2カラムレイアウト ===== */
.nd-layout { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; }
@media (max-width: 900px) { .nd-layout { grid-template-columns: 1fr; } }

/* ===== 記事カード ===== */
.nd-card { display: flex; gap: 20px; padding: 20px; border: 1.5px solid var(--nd-border); border-radius: var(--nd-radius); margin-bottom: 16px; background: #fff; transition: box-shadow .2s; }
.nd-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); }
.nd-card__thumb-link { flex-shrink: 0; }
.nd-card__thumb { width: 200px; height: 130px; opacity: 1; object-fit: cover; border-radius: 4px; display: block; }
.nd-card__thumb--gradient { width: 200px; height: 130px; opacity: 1; border-radius: 4px; }
.nd-card__body { flex: 1; min-width: 0; }
.nd-card__meta { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.nd-card__date {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 14px;
  line-height: 100%;
  letter-spacing: 0;
  color: #71717A;
}
.nd-badge { display: inline-block; padding: 3px 8px; border-radius: 4px; font-size: 12px; font-weight: 700; color: #fff; white-space: nowrap; }
.nd-badge--sm { font-size: 11px; padding: 2px 8px; }
.nd-card__title {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 18px;
  line-height: 150%;
  letter-spacing: 0;
  margin: 0 0 8px;
  color: #323232;
}
.nd-card__title a { color: #323232; text-decoration: none; }
.nd-card__title a:hover { color: var(--nd-primary); }
.nd-card__excerpt {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 14px;
  line-height: 165%;
  letter-spacing: 0;
  color: #71717A;
  margin: 0 0 12px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.nd-card__more {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 13px;
  line-height: 100%;
  letter-spacing: 0;
  color: #2E76EB;
  text-decoration: none;
}
.nd-card__more:hover { text-decoration: underline; }
@media (max-width: 480px) {
  .nd-card { flex-direction: column; }
  .nd-card__thumb, .nd-card__thumb--gradient { width: 100%; height: auto; aspect-ratio: 200 / 130; }
}

/* ===== ページネーション ===== */
.nd-pagination { margin-top: 32px; }
.nd-pagination__list { display: flex; align-items: center; gap: 10px; list-style: none; padding: 0; margin: 0; justify-content: center; }
.nd-page-nav {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 6px 8px;
  border-radius: 2px;
  background: #FFFFFF;
  border: 1.5px solid #000000;
  opacity: 1;
  color: #000000;
  font-size: 12px;
  text-decoration: none;
  transition: opacity .2s;
}
.nd-page-nav--disabled { opacity: 0.25; pointer-events: none; }
.nd-page-nav__icon { display: block; flex-shrink: 0; }
.nd-pagination__list .page-numbers {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 6px 8px;
  border-radius: 2px;
  border: 1.5px solid #000000;
  background: #FFFFFF;
  font-family: 'Kinto Sans', 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 12px;
  line-height: 100%;
  letter-spacing: 0;
  text-align: center;
  color: #000000;
  text-decoration: none;
}
.nd-pagination__list .page-numbers.current {
  background: #000000;
  border-color: #000000;
  font-weight: 700;
  color: #FFFFFF;
}
.nd-pagination__list .page-numbers.dots { border: none; background: transparent; }

/* ===== サイドバー ===== */
.nd-sidebar { position: sticky; top: 88px; }
.nd-sidebar__widget { margin-bottom: 28px; }
.nd-sidebar__title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 700;
  font-size: 16px;
  line-height: 100%;
  letter-spacing: 0;
  color: #323232;
  margin: 0 0 12px;
}
.nd-sidebar__title::before {
  content: "";
  display: block;
  flex-shrink: 0;
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: #2E76EB;
}
.nd-search-form {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 340px;
  height: 48px;
  padding: 14px 16px;
  border-radius: 12px;
  background: #FFFFFF;
  border: 1px solid #E4E4E7;
}
.nd-search-input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  padding: 0;
  background: transparent;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-size: 14px;
  color: var(--nd-text);
}
.nd-search-input::placeholder {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 14px;
  line-height: 100%;
  letter-spacing: 0;
  color: #A1A1AA;
}
.nd-search-btn { background: transparent; border: none; padding: 0; margin-left: 8px; cursor: pointer; color: var(--nd-text-muted); display: flex; align-items: center; flex-shrink: 0; }
.nd-search-btn:hover { color: var(--nd-primary); }
.nd-cat-list { list-style: none; padding: 0; margin: 0; }
.nd-cat-list__item { display: flex; justify-content: space-between; align-items: center; padding: 9px 0; border-bottom: 1px solid var(--nd-border); }
.nd-cat-list__item:last-child { border-bottom: none; }
.nd-cat-list__link {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 14px;
  line-height: 100%;
  letter-spacing: 0;
  color: #4A4A4A;
  text-decoration: none;
}
.nd-cat-list__link:hover { color: var(--nd-primary); }
.nd-cat-list__count {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 13px;
  line-height: 100%;
  letter-spacing: 0;
  color: #A1A1AA;
}
.nd-popular-list { list-style: none; padding: 0; margin: 0; }
.nd-popular-item { margin-bottom: 12px; }
.nd-popular-item:last-child { margin-bottom: 0; }
.nd-popular-item__link { display: flex; gap: 12px; text-decoration: none; }
.nd-popular-item__thumb { width: 64px; height: 64px; object-fit: cover; border-radius: 4px; flex-shrink: 0; }
.nd-popular-item__thumb--gradient { width: 64px; height: 64px; border-radius: 4px; flex-shrink: 0; }
.nd-popular-item__info { flex: 1; min-width: 0; }
.nd-popular-item__date {
  display: block;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 12px;
  line-height: 100%;
  letter-spacing: 0;
  color: #A1A1AA;
  margin-bottom: 4px;
}
.nd-popular-item__title {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 13px;
  line-height: 150%;
  letter-spacing: 0;
  color: #323232;
  margin: 0;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.nd-popular-item__link:hover .nd-popular-item__title { color: var(--nd-primary); }
.nd-tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.nd-tag {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 4px;
  background: #F4F4F5;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 13px;
  line-height: 100%;
  letter-spacing: 0;
  color: #52525B;
  text-decoration: none;
  transition: all .2s;
}
.nd-tag:hover { background: var(--nd-primary); color: #fff; }

/* ===== 詳細ページ ===== */
.nd-single__header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.nd-single__date { font-size: 14px; color: var(--nd-text-muted); }
.nd-single__title {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 700;
  font-size: 28px;
  line-height: 145%;
  letter-spacing: 0;
  color: #323232;
  margin: 0 0 24px;
}
.nd-single__hero { margin-bottom: 28px; border-radius: var(--nd-radius); overflow: hidden; }
.nd-single__hero-img { width: 100%; height: 360px; object-fit: cover; display: block; }
.nd-single__hero-img--gradient { height: 360px; width: 100%; display: block; }

/* 本文スタイル */
.nd-prose {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 185%;
  letter-spacing: 0;
  color: var(--nd-text);
  margin-bottom: 32px;
}
.nd-prose h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 700;
  font-size: 20px;
  line-height: 100%;
  letter-spacing: 0;
  color: #323232;
  margin: 32px 0 12px;
}
.nd-prose h2::before {
  content: "";
  display: block;
  flex-shrink: 0;
  width: 5px;
  height: 22px;
  border-radius: 2px;
  background: #2E76EB;
}
.nd-prose h3 { font-size: 16px; font-weight: 700; margin: 24px 0 10px; }
.nd-prose p { margin: 0 0 16px; }
.nd-prose ul,.nd-prose ol { list-style: none; padding-left: 0; margin: 0 0 16px; }
.nd-prose li { position: relative; margin-bottom: 6px; padding-left: 17px; }
.nd-prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 7px;
  height: 7px;
  background: #2E76EB;
}
.nd-prose ol { counter-reset: nd-ol; }
.nd-prose ol > li { counter-increment: nd-ol; }
.nd-prose ol > li::before { content: counter(nd-ol) "."; width: auto; height: auto; background: none; color: #2E76EB; font-weight: 700; transform: none; top: 0; }
.nd-prose blockquote {
  display: flex;
  align-items: stretch;
  gap: 16px;
  max-width: 820px;
  min-height: 92px;
  padding: 20px 24px;
  margin: 16px 0;
  border-radius: 4px;
  background: #F5F8FF;
}
.nd-prose blockquote::before {
  content: "";
  flex-shrink: 0;
  align-self: stretch;
  width: 4px;
  background: #2E76EB;
}
.nd-prose blockquote p {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 15px;
  line-height: 185%;
  letter-spacing: 0;
  color: #4A4A4A;
  margin: 0;
}
.nd-prose a { color: var(--nd-primary); }
.nd-prose img { max-width: 100%; border-radius: var(--nd-radius-sm); }
.nd-prose figure { margin: 16px 0; }
.nd-prose figcaption { font-size: 12px; color: var(--nd-text-muted); text-align: center; margin-top: 6px; }

/* タグ */
.nd-single__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.nd-single__tags a {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 4px;
  background: #F4F4F5;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 13px;
  line-height: 100%;
  letter-spacing: 0;
  color: #52525B;
  text-decoration: none;
}
.nd-single__tags a:hover { background: var(--nd-primary); color: #fff; }

/* SNSシェア */
.nd-share { text-align: center; padding: 24px 0; border-bottom: 1px solid var(--nd-border); margin-bottom: 28px; }
.nd-share__label {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 700;
  font-size: 14px;
  line-height: 100%;
  letter-spacing: 0;
  color: #323232;
  margin: 0 0 12px;
}
.nd-share__btns { display: flex; justify-content: center; gap: 10px; }
.nd-share__btn { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; font-size: 14px; font-weight: 700; color: #fff; text-decoration: none; border: none; cursor: pointer; transition: opacity .2s; }
.nd-share__btn:hover { opacity: .8; }
.nd-share__btn--x { background: #000; }
.nd-share__btn--fb { background: #1877F2; }
.nd-share__btn--line { background: #06C755; font-size: 11px; }
.nd-share__btn--copy { background: #6B7280; }

/* 前後記事ナビ */
.nd-post-nav { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.nd-post-nav__prev,.nd-post-nav__next { flex: 1; font-size: 13px; }
.nd-post-nav__next { text-align: right; }
.nd-post-nav__label {
  display: block;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 13px;
  line-height: 100%;
  letter-spacing: 0;
  color: #71717A;
  margin-bottom: 4px;
}
.nd-post-nav a {
  display: block;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 14px;
  line-height: 150%;
  letter-spacing: 0;
  color: #323232;
  text-decoration: none;
}
.nd-post-nav a:hover { color: var(--nd-primary); }
.nd-post-nav__divider { border: none; border-top: 1px solid var(--nd-border); margin: 0 0 28px; }

/* 一覧へ戻るボタン */
.nd-back-btn-wrap { text-align: center; margin-bottom: 48px; }
.nd-back-btn {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 48px;
  padding: 8px 16px;
  border-radius: 12px;
  background: #E5E7EB;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 100%;
  letter-spacing: 0;
  color: #09090B;
  text-decoration: none;
  transition: all .2s;
}
.nd-back-btn:hover { opacity: .85; }

/* セクションタイトル */
.nd-section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 700;
  font-size: 20px;
  line-height: 100%;
  letter-spacing: 0;
  color: #323232;
  margin: 0 0 20px;
}
.nd-section-title::before {
  content: "";
  display: block;
  flex-shrink: 0;
  width: 5px;
  height: 22px;
  border-radius: 2px;
  background: #2E76EB;
}

/* 関連記事グリッド */
.nd-related__grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
@media (max-width: 700px) { .nd-related__grid { grid-template-columns: 1fr; } }
.nd-related-card { display: block; text-decoration: none; }
.nd-related-card__thumb { width: 100%; height: 140px; object-fit: cover; border-radius: var(--nd-radius-sm); display: block; margin-bottom: 10px; }
.nd-related-card__thumb--gradient { width: 100%; height: 140px; border-radius: var(--nd-radius-sm); display: block; margin-bottom: 10px; }
.nd-related-card__meta { display: flex; align-items: center; gap: 8px; margin: 10px 0 4px; }
.nd-related-card__date {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 12px;
  line-height: 100%;
  letter-spacing: 0;
  color: #A1A1AA;
}
.nd-related-card__title {
  font-family: 'Inter', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
  font-weight: 500;
  font-size: 14px;
  line-height: 155%;
  letter-spacing: 0;
  color: #323232;
  margin: 0;
}
.nd-related-card:hover .nd-related-card__title { color: var(--nd-primary); }