/* ============================================================
   blog.css  – テクノスフィア ブログ・技術コラム
   トンマナ: style.css の CSS変数を継承
   ============================================================ */

/* -------------------------------------------------------
   共通: ページ変数・リセット
------------------------------------------------------- */

/* ブログページ内のcontainerにスマホ用padding追加 */
.blog-page .container,
.article-hero .container,
.article-wrap .container,
.blog-breadcrumb .container {
  padding-left: 16px;
  padding-right: 16px;
  box-sizing: border-box;
}
@media screen and (min-width: 641px) {
  .blog-page .container,
  .article-hero .container,
  .article-wrap .container,
  .blog-breadcrumb .container {
    padding-left: 24px;
    padding-right: 24px;
  }
}

.blog-page {
  background: var(--ts-bg-light);
  color: var(--ts-text);
}

/* -------------------------------------------------------
   ヒーロー（一覧ページ）
------------------------------------------------------- */
.blog-hero {
  background: linear-gradient(135deg, rgba(14,48,80,0.82) 0%, rgba(26,42,74,0.80) 60%, rgba(27,67,50,0.78) 100%),
              url('/assets/img/blog/hero.jpg') center center / cover no-repeat;
  padding: 120px 0 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.blog-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.blog-hero__inner {
  position: relative;
  z-index: 1;
}
.blog-hero__eyebrow {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 6px 18px;
  border-radius: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.25);
  text-transform: uppercase;
}
.blog-hero__title {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
  font-family: 'Montserrat', 'M PLUS 1', sans-serif;
}
.blog-hero__title span {
  color: #fff;
  text-shadow: 0 0 20px rgba(91,191,222,0.6);
}
.blog-hero__desc {
  color: rgba(255,255,255,0.95);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}

/* -------------------------------------------------------
   パンくずリスト
------------------------------------------------------- */
.blog-breadcrumb {
  background: #fff;
  border-bottom: 1px solid #e8edf2;
  padding: 12px 0;
}
.blog-breadcrumb__list {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
  font-size: 13px;
}
.blog-breadcrumb__list li {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ts-text-muted);
}
.blog-breadcrumb__list li::after {
  content: '/';
  color: #ccc;
}
.blog-breadcrumb__list li:last-child::after {
  display: none;
}
.blog-breadcrumb__list a {
  color: var(--ts-primary);
  text-decoration: none;
}
.blog-breadcrumb__list a:hover {
  text-decoration: underline;
}
.blog-breadcrumb__list li:last-child {
  color: var(--ts-text);
  font-weight: 500;
}

/* -------------------------------------------------------
   一覧レイアウト
------------------------------------------------------- */
.blog-main {
  padding: 60px 0 80px;
}
.blog-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

/* -------------------------------------------------------
   記事カード
------------------------------------------------------- */
.blog-cards {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.blog-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.07);
  overflow: hidden;
  display: grid;
  grid-template-columns: 240px 1fr;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  text-decoration: none;
  color: inherit;
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}
.blog-card__thumb {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--ts-sky-blue) 0%, var(--ts-lime-green) 100%);
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.blog-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}
.blog-card__thumb-icon {
  font-size: 48px;
  color: rgba(255,255,255,0.6);
}
.blog-card__body {
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}
.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.blog-card__cat {
  display: inline-block;
  background: var(--ts-sky-blue);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
  letter-spacing: 0.05em;
}
.blog-card__cat--ai     { background: var(--ts-sky-blue); }
.blog-card__cat--embed  { background: var(--ts-lime-green-dark); }
.blog-card__cat--web    { background: var(--ts-orange); }
.blog-card__date {
  font-size: 12px;
  color: var(--ts-text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}
.blog-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ts-text);
  line-height: 1.5;
  margin: 0;
}
.blog-card:hover .blog-card__title {
  color: var(--ts-primary-dark);
}
.blog-card__excerpt {
  font-size: 14px;
  color: var(--ts-text-light);
  line-height: 1.7;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.blog-card__tag {
  display: inline-block;
  background: var(--ts-bg-gray);
  color: var(--ts-text-light);
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 10px;
  border: 1px solid #e0e8f0;
}
.blog-card__more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--ts-primary);
  font-size: 13px;
  font-weight: 600;
  margin-top: 4px;
}

/* -------------------------------------------------------
   サイドバー
------------------------------------------------------- */
.blog-sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.blog-sidebar__widget {
  background: #fff;
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
}
.blog-sidebar__widget-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ts-text);
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ts-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.blog-sidebar__widget-title i {
  color: var(--ts-primary);
}
/* カテゴリ一覧 */
.blog-cat-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.blog-cat-list li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--ts-text);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 8px;
  border-radius: 8px;
  transition: background 0.2s;
}
.blog-cat-list li a:hover {
  background: var(--ts-bg-gray);
  color: var(--ts-primary-dark);
}
.blog-cat-list .count {
  background: var(--ts-bg-gray);
  color: var(--ts-text-muted);
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 10px;
}
/* タグクラウド */
.blog-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.blog-tag-cloud a {
  display: inline-block;
  background: var(--ts-bg-gray);
  color: var(--ts-text-light);
  font-size: 12px;
  padding: 4px 11px;
  border-radius: 12px;
  border: 1px solid #dde5ee;
  text-decoration: none;
  transition: all 0.2s;
}
.blog-tag-cloud a:hover {
  background: var(--ts-primary);
  color: #fff;
  border-color: var(--ts-primary);
}
/* CTA バナー */
.blog-cta-banner {
  background: linear-gradient(135deg, var(--ts-sky-blue-dark), var(--ts-lime-green-dark));
  border-radius: 14px;
  padding: 24px;
  text-align: center;
  color: #fff;
}
.blog-cta-banner p {
  font-size: 13px;
  line-height: 1.7;
  margin: 0 0 16px;
  opacity: 0.9;
}
.blog-cta-banner .btn-cta {
  display: inline-block;
  background: #fff;
  color: var(--ts-sky-blue-dark);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 25px;
  text-decoration: none;
  transition: opacity 0.2s;
}
.blog-cta-banner .btn-cta:hover {
  opacity: 0.85;
}

/* -------------------------------------------------------
   記事詳細ページ
------------------------------------------------------- */
.article-page {
  background: var(--ts-bg-light);
}

/* 記事ヒーロー */
.article-hero {
  background: linear-gradient(135deg, var(--ts-sky-blue-dark) 0%, #1a2a4a 100%);
  padding: 120px 0 56px;
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}
/* パターンオーバーレイ */
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  z-index: 0;
}
/* 背景画像がある場合のダークオーバーレイ（テキスト可読性確保） */
.article-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 20, 40, 0.60) 0%,
    rgba(10, 20, 40, 0.70) 60%,
    rgba(10, 20, 40, 0.80) 100%
  );
  z-index: 0;
}
.article-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 840px;
  margin: 0 auto;
}
.article-hero__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.article-hero__cat {
  display: inline-block;
  background: var(--ts-sky-blue);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 14px;
  letter-spacing: 0.05em;
}
.article-hero__date {
  color: #fff;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 5px;
  text-shadow: 0 1px 6px rgba(0,0,0,0.8), 0 0 20px rgba(0,0,0,0.5);
}
.article-hero__h1 {
  font-size: clamp(20px, 4vw, 36px);
  font-weight: 800;
  color: #fff;
  line-height: 1.4;
  margin: 0 0 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,1), 0 1px 6px rgba(0,0,0,0.9), 0 0 40px rgba(0,0,0,0.5);
}
.article-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.article-hero__tags span {
  display: inline-block;
  background: rgba(255,255,255,0.25);
  color: #fff;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.45);
  text-shadow: 0 1px 6px rgba(0,0,0,0.7);
}
/* 記事タイトル（別パターン） */
.article-hero__title {
  font-size: clamp(20px, 4vw, 36px);
  font-weight: 800;
  color: #fff;
  line-height: 1.4;
  margin: 0 0 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,1), 0 1px 6px rgba(0,0,0,0.9), 0 0 40px rgba(0,0,0,0.5);
}
/* 記事リード文 */
.article-hero__lead {
  font-size: 15px;
  color: #fff;
  line-height: 1.7;
  margin: 0 0 20px;
  text-shadow: 0 1px 8px rgba(0,0,0,0.9), 0 0 20px rgba(0,0,0,0.6);
}
/* 記事タグ（別パターン） */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.article-tag {
  display: inline-block;
  background: rgba(255,255,255,0.25);
  color: #fff;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.45);
  text-shadow: 0 1px 6px rgba(0,0,0,0.7);
}
/* ヒーロー内のtime要素 */
.article-hero__meta time {
  color: #fff;
  font-size: 13px;
  text-shadow: 0 1px 6px rgba(0,0,0,0.8), 0 0 20px rgba(0,0,0,0.5);
}

/* 記事レイアウト */
.article-wrap {
  padding: 56px 0 80px;
}
.article-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
}

/* 記事本文 */
.article-body {
  background: #fff;
  border-radius: 16px;
  padding: 48px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.07);
  line-height: 1.9;
  font-size: 16px;
  color: var(--ts-text);
}
.article-body h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ts-text);
  margin: 48px 0 18px;
  padding: 14px 20px;
  background: var(--ts-bg-light);
  border-left: 4px solid var(--ts-primary);
  border-radius: 0 8px 8px 0;
  line-height: 1.4;
}
.article-body h2:first-child {
  margin-top: 0;
}
.article-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ts-text);
  margin: 36px 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px dashed var(--ts-primary-light);
}
.article-body p {
  margin: 0 0 20px;
  line-height: 1.9;
}
.article-body ul,
.article-body ol {
  padding-left: 1.5em;
  margin: 0 0 20px;
}
.article-body ul li,
.article-body ol li {
  margin-bottom: 8px;
  line-height: 1.8;
}
.article-body ul li::marker {
  color: var(--ts-primary);
}
.article-body strong {
  font-weight: 700;
  color: var(--ts-sky-blue-dark);
}
/* ポイントボックス */
.article-point-box {
  background: linear-gradient(135deg, rgba(91,191,222,0.08), rgba(141,198,63,0.08));
  border: 1px solid rgba(91,191,222,0.25);
  border-radius: 12px;
  padding: 24px 28px;
  margin: 28px 0;
}
.article-point-box__title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ts-sky-blue-dark);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.article-point-box ul {
  margin: 0;
  padding-left: 1.3em;
}
.article-point-box ul li {
  font-size: 15px;
  margin-bottom: 8px;
  line-height: 1.7;
}
/* 注目ボックス */
.article-highlight {
  background: var(--ts-sky-blue);
  color: #fff;
  border-radius: 12px;
  padding: 20px 24px;
  margin: 28px 0;
  font-size: 15px;
  line-height: 1.7;
}
.article-highlight strong {
  color: #fff;
}
/* まとめ */
.article-summary {
  background: var(--ts-bg-light);
  border-radius: 12px;
  padding: 28px;
  margin: 36px 0 0;
  border: 1px solid #dde8f0;
}
.article-summary__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ts-text);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.article-summary__title i {
  color: var(--ts-lime-green-dark);
}

/* 記事フッター（シェア・タグ） */
.article-footer {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid #e8edf2;
}
.article-footer__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 24px;
}
.article-footer__tag {
  display: inline-block;
  background: var(--ts-bg-gray);
  color: var(--ts-text-light);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 12px;
  border: 1px solid #dde5ee;
  text-decoration: none;
  transition: all 0.2s;
}
.article-footer__tag:hover {
  background: var(--ts-primary);
  color: #fff;
  border-color: var(--ts-primary);
}
.article-share {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.article-share__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ts-text-light);
}
.article-share__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s;
}
.article-share__btn:hover { opacity: 0.8; }
.article-share__btn--x       { background: #000; color: #fff; }
.article-share__btn--fb      { background: #1877f2; color: #fff; }
.article-share__btn--line    { background: #06c755; color: #fff; }

/* 前後ナビ */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}
.article-nav__item {
  background: #fff;
  border-radius: 12px;
  padding: 18px 20px;
  text-decoration: none;
  color: var(--ts-text);
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.article-nav__item:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}
.article-nav__label {
  font-size: 11px;
  font-weight: 700;
  color: var(--ts-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.article-nav__title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
}

/* 記事内サイドバー */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 88px;
}
/* 目次 */
.article-toc {
  background: #fff;
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
}
.article-toc__title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ts-text);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ts-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.article-toc__title i { color: var(--ts-primary); }
.article-toc__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.article-toc__list li a {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--ts-text-light);
  font-size: 13px;
  text-decoration: none;
  line-height: 1.5;
  transition: color 0.2s;
}
.article-toc__list li a:hover {
  color: var(--ts-primary-dark);
}
.article-toc__list li a::before {
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--ts-primary);
  flex-shrink: 0;
  margin-top: 7px;
}
/* 関連記事 */
.related-articles {
  background: #fff;
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
}
.related-articles__title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ts-text);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ts-lime-green);
  display: flex;
  align-items: center;
  gap: 6px;
}
.related-articles__title i { color: var(--ts-lime-green-dark); }
.related-article-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid #f0f0f0;
  text-decoration: none;
  color: var(--ts-text);
  transition: color 0.2s;
}
.related-article-item:last-child { border-bottom: none; }
.related-article-item:hover { color: var(--ts-primary-dark); }
.related-article-item__thumb {
  width: 60px;
  height: 48px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--ts-sky-blue), var(--ts-lime-green));
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 18px;
}
.related-article-item__title {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
/* 記事内CTA */
.article-cta {
  background: linear-gradient(135deg, var(--ts-sky-blue-dark), var(--ts-lime-green-dark));
  border-radius: 14px;
  padding: 24px;
  text-align: center;
  color: #fff;
}
.article-cta p {
  font-size: 13px;
  line-height: 1.7;
  margin: 0 0 14px;
  opacity: 0.9;
}
.article-cta .btn-cta {
  display: inline-block;
  background: #fff;
  color: var(--ts-sky-blue-dark);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 25px;
  text-decoration: none;
  transition: opacity 0.2s;
}
.article-cta .btn-cta:hover { opacity: 0.85; }

/* -------------------------------------------------------
   記事一覧に戻るリンク
------------------------------------------------------- */
.back-to-blog {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ts-primary);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  margin-bottom: 32px;
  transition: gap 0.2s;
}
.back-to-blog:hover { gap: 10px; }

/* -------------------------------------------------------
   Responsive
------------------------------------------------------- */

/* ── タブレット (〜900px) ── */
@media screen and (max-width: 900px) {
  .blog-layout,
  .article-layout {
    grid-template-columns: 1fr;
  }
  .blog-sidebar,
  .article-sidebar {
    position: static;
  }
  .article-nav {
    grid-template-columns: 1fr;
  }
  .article-toc {
    margin-bottom: 24px;
  }
  .article-body {
    padding: 36px 28px;
  }
}

/* ── スマートフォン (〜640px) ── */
@media screen and (max-width: 640px) {

  /* ヒーロー */
  .blog-hero {
    padding: 90px 0 40px;
  }
  .blog-hero__title {
    font-size: clamp(22px, 6vw, 32px);
  }
  .blog-hero__desc {
    font-size: 14px;
  }
  .article-hero {
    padding: 90px 0 32px;
  }
  .article-hero__h1 {
    font-size: clamp(18px, 5.5vw, 26px);
    text-shadow: 0 2px 20px rgba(0,0,0,0.95), 0 1px 6px rgba(0,0,0,0.8);
  }
  .article-hero__cat {
    font-size: 10px;
    padding: 3px 10px;
  }
  .article-hero__date {
    font-size: 12px;
  }
  .article-hero__tags span {
    font-size: 11px;
    padding: 3px 8px;
  }

  /* パンくず */
  .blog-breadcrumb {
    padding: 10px 0;
    font-size: 12px;
  }

  /* 記事一覧カード */
  .blog-card {
    grid-template-columns: 1fr;
  }
  .blog-card__thumb {
    min-height: 160px;
  }

  /* 記事本文 */
  .article-wrap {
    padding: 28px 0 48px;
  }
  .article-body {
    padding: 24px 16px;
    font-size: 15px;
    border-radius: 10px;
  }
  .article-body h2 {
    font-size: 17px;
    padding: 10px 14px;
    margin: 36px 0 14px;
  }
  .article-body h3 {
    font-size: 15px;
    margin: 24px 0 10px;
    padding-left: 10px;
  }
  .article-body p {
    font-size: 15px;
    line-height: 1.85;
  }
  .article-body ul,
  .article-body ol {
    padding-left: 20px;
  }
  .article-body pre,
  .article-body code {
    font-size: 13px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
  }
  .article-body img {
    max-width: 100%;
    height: auto;
  }
  .article-body table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    font-size: 13px;
  }

  /* 目次 */
  .article-toc {
    padding: 16px;
    border-radius: 10px;
  }
  .article-toc__title {
    font-size: 14px;
  }
  .article-toc__list li a {
    font-size: 13px;
    padding: 5px 0;
  }

  /* サイドバー */
  .article-sidebar {
    display: none;
  }

  /* 前後ナビ */
  .article-nav {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 32px;
  }
  .article-nav__item {
    padding: 14px 16px;
  }
  .article-nav__title {
    font-size: 13px;
  }
}

/* ── 超小型端末 (〜375px iPhone SE等) ── */
@media screen and (max-width: 375px) {
  .article-hero {
    padding: 80px 0 28px;
  }
  .article-hero__h1 {
    font-size: clamp(16px, 5vw, 22px);
  }
  .article-body {
    padding: 20px 12px;
  }
  .article-body h2 {
    font-size: 16px;
    padding: 8px 12px;
  }
  .article-cta {
    padding: 24px 16px;
  }
}