/* ===== 記事ヘッダー ===== */
.article-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 48px 24px 40px;
}

.article-header-inner {
  max-width: 720px;
  margin: 0 auto;
}

.article-date {
  font-family: var(--font-en);
  font-size: 0.8rem;
  color: var(--text-sub);
  margin: 10px 0 8px;
}

.article-title {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.45;
  margin-bottom: 24px;
}

.article-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.article-author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.article-author-name {
  font-size: 0.85rem;
  font-weight: 700;
}

.article-read-time {
  font-family: var(--font-en);
  font-size: 0.72rem;
  color: var(--text-sub);
}

/* ===== アイキャッチ ===== */
.article-eyecatch {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
  transform: translateY(-1px);
}

.article-eyecatch-img {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 0 0 var(--radius) var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-eyecatch-emoji {
  font-size: 6rem;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2));
}

/* ===== 記事本文 ===== */
.article-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  font-size: 1rem;
  line-height: 2;
  color: var(--text);
}

.article-content h2 {
  font-size: 1.4rem;
  font-weight: 900;
  margin: 48px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--pop-pink);
}

.article-content h2:first-child {
  margin-top: 0;
}

.article-content p {
  margin-bottom: 20px;
}

.article-content ul {
  margin: 16px 0 24px 20px;
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.8;
}

.article-content blockquote {
  margin: 32px 0;
  padding: 20px 24px;
  background: var(--bg);
  border-left: 4px solid var(--pop-purple);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-sub);
  line-height: 1.8;
}

/* 記事内画像 */
.article-figure {
  margin: 40px 0;
}

.article-figure-img {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

.article-figure figcaption {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-sub);
  margin-top: 10px;
}

/* ===== タグ ===== */
.article-tags {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 32px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.article-tag {
  display: inline-block;
  padding: 6px 16px;
  border: 1.5px solid var(--border);
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 600;
  transition: all 0.2s;
}

.article-tag:hover {
  background: var(--text);
  color: #fff;
  border-color: var(--text);
}

/* ===== シェア ===== */
.article-share {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 40px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.article-share-label {
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-sub);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.article-share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--text);
  color: #fff;
  transition: opacity 0.2s;
}

.article-share-btn:hover { opacity: 0.7; }

/* ===== 著者ボックス ===== */
.article-author-box {
  max-width: 720px;
  margin: 0 auto 48px;
  padding: 0 24px;
}

.article-author-box {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.article-author-box-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.article-author-box-name {
  font-size: 1rem;
  font-weight: 900;
  margin-bottom: 6px;
}

.article-author-box-bio {
  font-size: 0.85rem;
  color: var(--text-sub);
  line-height: 1.7;
}

/* ===== 関連記事 ===== */
.related-section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 56px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ===== レスポンシブ ===== */
@media (max-width: 768px) {
  .article-title { font-size: 1.6rem; }
  .article-eyecatch-emoji { font-size: 4rem; }
  .article-content h2 { font-size: 1.2rem; }
  .related-grid { grid-template-columns: 1fr; }
  .article-author-box { flex-direction: column; align-items: center; text-align: center; }
}