/* ヒーローセクションを非表示 */
.hero { display: none !important; }

/* ヘッダーを白背景（solidスタイル）に強制する */
header#mainHeader {
  background: rgba(255, 255, 255, 0.96) !important;
  backdrop-filter: blur(12px) !important;
  box-shadow: 0 1px 0 var(--rule) !important;
}
header#mainHeader .logo-text { color: var(--navy) !important; }
header#mainHeader .logo-mark path, header#mainHeader .logo-mark circle { stroke: var(--navy) !important; }
header#mainHeader nav a { color: var(--body) !important; }
header#mainHeader .header-cta { border-color: var(--teal) !important; color: var(--teal) !important; }
header#mainHeader .hamburger span { background: var(--navy) !important; }

/* ─── SINGLE NEWS STYLES (Layout inspired by reference) ─── */
.single-page-wrapper {
  /* fixedヘッダー分の余白 */
  padding-top: 72px; 
}
.page_header {
  padding: 80px 0;
  text-align: center;
  border-bottom: 1px solid var(--rule);
  background-color: var(--bg-soft); /* ほんのり背景色をつけて分離 */
}
.page_header_title {
  font-family: 'DM Mono', monospace;
  font-size: 2.5rem;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.page_header p {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--muted);
  font-size: 0.95rem;
}
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 5%;
	text-align: left;
}
.page_main {
  padding: 80px 5% 120px;
  background-color: var(--bg);
}
.post_title {
  font-size: 1.8rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--navy);
  margin-bottom: 48px;
  text-align: left;
}
.post_content {
  font-size: 1rem;
  line-height: 2;
  color: var(--body);
  margin-bottom: 80px;
}
.post_content h2 {
  font-size: 1.5rem;
  color: var(--navy);
  margin-top: 56px;
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--teal);
}
.post_content h3 {
  font-size: 1.25rem;
  color: var(--navy);
  margin-top: 40px;
  margin-bottom: 20px;
  border-left: 4px solid var(--teal);
  padding-left: 12px;
}
.post_content p {
  margin-bottom: 24px;
}
.post_content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 32px 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}
.post_content a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.post_content a:hover {
  color: var(--teal-dark);
}
.post_content ul,
.post_content ol {
  margin-bottom: 24px;
  padding-left: 24px;
}
.post_content li {
  margin-bottom: 8px;
}
.news_nav_wrap {
  margin-top: 64px;
  border-top: 1px solid var(--rule);
  padding-top: 48px;
}
.news_nav {
  display: flex;
  justify-content: space-between;
  margin-bottom: 48px;
}
.news_nav_block a {
  color: var(--navy);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s;
}
.news_nav_block a:hover {
  color: var(--teal);
}
.nav_previous a::before {
  content: '« ';
}
.nav_next a::after {
  content: ' »';
}
.news_back_wrap {
  text-align: center;
}
.back-to-news {
  display: inline-block;
  padding: 14px 40px;
  border: 1px solid var(--teal);
  color: var(--teal);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
  border-radius: 4px;
}
.back-to-news:hover {
  background: var(--teal);
  color: #fff;
}

@media (max-width: 768px) {
  .page_header {
    padding: 50px 0;
  }
  .page_header_title {
    font-size: 2rem;
  }
  .post_title {
    font-size: 1.5rem;
    margin-bottom: 32px;
  }
  .page_main {
    padding: 50px 5% 80px;
  }
  .news_nav {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }
}