}
/* ── NAV ── */
}
nav ul { list-style: none; display: flex; gap: 40px; align-items: center; }
nav ul li a { font-family: 'Playfair Display', serif; font-size: 14px; color: var(--text); text-decoration: none; opacity: 0.6; }
nav ul li a.active { opacity: 1; font-weight: 600; }
/* ── PAGE HERO ── */
#page-hero {
  padding: 148px 52px 72px;
  border-bottom: 1px solid var(--border);
}
.page-hero-inner { display: flex; gap: 100px; align-items: flex-end; }
.page-hero-label span {
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 4.5vw, 56px);
  font-weight: 700; line-height: 1;
  letter-spacing: -0.02em; display: block;
}
.page-hero-right { flex: 1; }
.page-hero-title {
  font-size: clamp(16px, 1.8vw, 24px);
  font-weight: 400; margin-bottom: 10px;
}
.page-hero-sub {
  font-size: 13px; font-weight: 300;
  line-height: 2; color: var(--text-soft);
}

/* ── BLOG GRID SECTION ── */
#blog-archive { padding: 80px 52px 120px; }

.blog-archive-inner {
  display: flex; gap: 80px; align-items: flex-start;
}

/* 左：グリッド */
.blog-archive-main { flex: 1; }

.blog-archive-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px 32px;
}

.ba-card {
  display: block; text-decoration: none; color: inherit;
  transition: opacity 0.3s;
}
.ba-card:hover { opacity: 0.8; }

.ba-thumb {
  aspect-ratio: 16/10;
  background: var(--off-white);
  overflow: hidden; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Playfair Display', serif;
  font-size: 36px; color: var(--border);
  position: relative;
}
.ba-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.6s; }
.ba-card:hover .ba-thumb img { transform: scale(1.04); }

.ba-cat {
  font-family: 'Playfair Display', serif;
  font-size: 10px; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--text-soft); display: block; margin-bottom: 10px;
}
.ba-title {
  font-size: 16px; font-weight: 400; line-height: 1.8;
  margin-bottom: 12px;
}
.ba-meta {
  display: flex; justify-content: space-between; align-items: center;
}
.ba-date {
  font-family: 'Playfair Display', serif;
  font-size: 11px; color: var(--text-soft); letter-spacing: 0.08em;
}
.ba-more {
  font-family: 'Playfair Display', serif;
  font-size: 11px; color: var(--text-soft); letter-spacing: 0.1em;
}

/* 1枚目だけ大きく */
.ba-card:first-child { grid-column: span 2; }
.ba-card:first-child .ba-thumb { aspect-ratio: 16/7; }
.ba-card:first-child .ba-title { font-size: 20px; }

/* 右：サイドバー */
.blog-archive-sidebar {
  width: 240px; flex-shrink: 0;
  position: sticky; top: 88px;
}

.sidebar-section { margin-bottom: 48px; }
.sidebar-section h4 {
  font-family: 'Playfair Display', serif;
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--text-soft); margin-bottom: 20px;
  padding-bottom: 12px; border-bottom: 1px solid var(--border);
}
.sidebar-cats { list-style: none; }
.sidebar-cats li { border-bottom: 1px solid var(--border); }
.sidebar-cats li a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 0;
  font-family: 'Playfair Display', serif;
  font-size: 13px; color: var(--text-mid); text-decoration: none;
  transition: color 0.25s;
}
.sidebar-cats li a:hover { color: var(--text); }
.sidebar-cats li a span {
  font-size: 11px; color: var(--text-soft);
}

.sidebar-recent { list-style: none; }
.sidebar-recent li { border-bottom: 1px solid var(--border); }
.sidebar-recent li a {
  display: block; padding: 14px 0;
  font-size: 13px; font-weight: 300; line-height: 1.7;
  color: var(--text-mid); text-decoration: none;
  transition: color 0.25s;
}
.sidebar-recent li a:hover { color: var(--text); }
.sidebar-recent li a small {
  display: block; margin-top: 4px;
  font-family: 'Playfair Display', serif;
  font-size: 10px; color: var(--text-soft);
}

/* ── ページネーション ── */
.blog-pagination {
  display: flex; justify-content: center; gap: 8px;
  margin-top: 72px;
}
.blog-pagination a, .blog-pagination span {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  font-family: 'Playfair Display', serif; font-size: 13px;
  border: 1px solid var(--border); color: var(--text-soft);
  text-decoration: none; transition: all 0.25s;
}
.blog-pagination a:hover { border-color: var(--text); color: var(--text); }
.blog-pagination .current { background: var(--text); border-color: var(--text); color: var(--white); }

/* ═══════════════════════════════
   SINGLE POST
═══════════════════════════════ */

/* ── SINGLE THUMB ── */
.sp-thumb {
  margin-top: 68px;
  width: 100%; aspect-ratio: 16/6;
  background: var(--off-white); overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Playfair Display', serif; font-size: 64px; color: var(--border);
}
.sp-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ── SINGLE HERO ── */
.sp-hero {
  padding: 56px 52px 48px;
  display: flex; gap: 100px; align-items: flex-start;
  border-bottom: 1px solid var(--border);
}
.sp-hero-label { flex-shrink: 0; width: 120px; padding-top: 4px; }
.sp-hero-label-text {
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 4.5vw, 56px);
  font-weight: 700; line-height: 1; letter-spacing: -0.02em; display: block;
}
.sp-hero-right { flex: 1; }
.sp-cat {
  font-family: 'Playfair Display', serif;
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--text-soft); display: block; margin-bottom: 16px;
  margin-top: clamp(28px, 4.5vw, 56px);
}
.sp-title {
  font-size: clamp(22px, 3vw, 36px); font-weight: 400;
  line-height: 1.6; margin-bottom: 16px;
}
.sp-meta {
  display: flex; gap: 24px; align-items: center;
}
.sp-date, .sp-author {
  font-family: 'Playfair Display', serif;
  font-size: 11px; color: var(--text-soft); letter-spacing: 0.08em;
}

/* ── SINGLE LAYOUT ── */
.sp-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 80px;
  padding: 72px 52px 120px;
  align-items: start;
}

/* ── SINGLE BODY ── */
.sp-body {
  font-size: 15px; font-weight: 300; line-height: 2.4; color: var(--text-mid);
}
.sp-body p { margin-bottom: 28px; }
.sp-body h2 {
  font-size: 20px; font-weight: 500; color: var(--text);
  margin: 52px 0 16px;
  padding-left: 16px; border-left: 3px solid var(--text);
}
.sp-body h3 {
  font-size: 17px; font-weight: 500; color: var(--text);
  margin: 40px 0 12px;
}
.sp-body ul, .sp-body ol {
  padding-left: 24px; margin-bottom: 28px;
}
.sp-body li { margin-bottom: 8px; }
.sp-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 16px 24px; margin: 32px 0;
  background: var(--off-white);
  font-style: italic; color: var(--text-mid);
}

/* CTAと関連記事 */
.sp-cta {
  margin-top: 72px; padding-top: 56px;
  border-top: 1px solid var(--border);
}
.sp-cta h4 { font-size: 18px; font-weight: 400; margin-bottom: 12px; }
.sp-cta p { font-size: 13px; font-weight: 300; color: var(--text-soft); margin-bottom: 28px; line-height: 2; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--text); color: var(--white);
  font-family: 'Playfair Display', serif;
  font-size: 13px; letter-spacing: 0.2em;
  padding: 16px 36px; text-decoration: none;
}
.btn-primary:hover { background: var(--text-mid); }

/* ── SINGLE SIDEBAR ── */
.sp-sidebar { position: sticky; top: 88px; }

.sp-info-box { background: var(--off-white); padding: 28px; margin-bottom: 32px; }
.sp-info-box h4 {
  font-family: 'Playfair Display', serif;
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--text-soft); margin-bottom: 16px;
}
.sp-info-box p { font-size: 13px; font-weight: 300; line-height: 2; color: var(--text-mid); }

.sp-related { margin-bottom: 32px; }
.sp-related h4 {
  font-family: 'Playfair Display', serif;
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--text-soft); margin-bottom: 20px;
}
.sp-related-card {
  display: flex; gap: 12px; align-items: center;
  text-decoration: none; color: inherit;
  padding: 14px 0; border-bottom: 1px solid var(--border);
  transition: opacity 0.25s;
}
.sp-related-card:first-of-type { border-top: 1px solid var(--border); }
.sp-related-card:hover { opacity: 0.6; }
.sp-related-thumb {
  flex-shrink: 0; width: 56px; height: 56px;
  background: var(--off-white);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Playfair Display', serif; font-size: 13px; color: var(--border);
  overflow: hidden;
}
.sp-related-thumb img { width: 100%; height: 100%; object-fit: cover; }
.sp-related-body {}
.sp-related-cat {
  font-family: 'Playfair Display', serif;
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--text-soft); display: block; margin-bottom: 4px;
}
.sp-related-body p { font-size: 12px; font-weight: 300; line-height: 1.6; }

.sp-back {
  display: block;
  font-family: 'Playfair Display', serif;
  font-size: 12px; letter-spacing: 0.15em;
  color: var(--text-soft); text-decoration: none;
  transition: color 0.25s;
}
.sp-back:hover { color: var(--text); }

/* ── FOOTER ── */
/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  nav { padding: 0 32px; }
  #page-hero { padding: 120px 32px 56px; }
  .page-hero-inner { gap: 48px; }
  #blog-archive { padding: 60px 32px 80px; }
  .blog-archive-inner { flex-direction: column; gap: 48px; }
  .blog-archive-sidebar { width: 100%; position: static; }
  .sp-hero { padding: 40px 32px 40px; gap: 48px; }
  .sp-layout { grid-template-columns: 1fr; padding: 60px 32px 80px; gap: 48px; }
  .sp-sidebar { position: static; }
}
@media (max-width: 768px) {
  nav { padding: 0 20px; height: 60px; }
  nav ul { display: none; }
  .preview-tabs { display: none; }
  #page-hero { padding: 110px 20px 48px; }
  .page-hero-inner { flex-direction: column; gap: 20px; align-items: flex-start; }
  #blog-archive { padding: 48px 20px 80px; }
  .blog-archive-grid { grid-template-columns: 1fr; }
  .ba-card:first-child { grid-column: span 1; }
  .ba-card:first-child .ba-thumb { aspect-ratio: 16/10; }
  .ba-card:first-child .ba-title { font-size: 16px; }
  .sp-thumb { aspect-ratio: 4/3; }
  .sp-hero { flex-direction: column; gap: 16px; padding: 28px 20px; }
  .sp-layout { padding: 40px 20px 80px; }
  footer { padding: 48px 20px 28px; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}