/* ===========================
   BLOG PAGES
=========================== */

/* ページヒーロー */
.page-hero {
  padding: 160px 0 80px;
  background: linear-gradient(160deg, #0f0f0f 0%, #1a1a1a 60%, #0a0a0a 100%);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 80%, rgba(201, 168, 76, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.page-hero__label {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.page-hero__title {
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 24px;
}

.page-hero__desc {
  font-size: clamp(14px, 1.8vw, 16px);
  color: var(--color-text-muted);
  line-height: 1.9;
}

.header__nav-list a.is-current {
  color: var(--color-primary);
}

/* ===========================
   BLOG LIST
=========================== */

.blog-section {
  padding: 80px 0 120px;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.blog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
}

.blog-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.blog-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #1a1a1a;
}

.blog-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.blog-card:hover .blog-card__image img {
  transform: scale(1.04);
}

.blog-card__body {
  padding: 24px;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.blog-card__date {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.blog-card__category {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: 2px 8px;
  border-radius: 2px;
}

.blog-card__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 12px;
}

.blog-card__excerpt {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.blog-card__link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

/* ===========================
   ARTICLE
=========================== */

.article-hero {
  padding: 160px 0 60px;
  background: linear-gradient(160deg, #0f0f0f 0%, #1a1a1a 60%, #0a0a0a 100%);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 80%, rgba(201, 168, 76, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.article-hero__inner {
  max-width: 800px;
  margin: 0 auto;
}

.article-hero__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.article-hero__category {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: 3px 10px;
  border-radius: 2px;
}

.article-hero__date {
  font-family: var(--font-en);
  font-size: 13px;
  color: var(--color-text-muted);
}

.article-hero__title {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.4;
}

/* 記事本文 */
.article-body {
  padding: 80px 0 100px;
}

.article-body__inner {
  max-width: 800px;
  margin: 0 auto;
}

.article-content {
  font-size: 16px;
  line-height: 2;
  color: var(--color-text);
}

.article-content h2 {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  margin: 64px 0 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.article-content h3 {
  font-size: clamp(17px, 2.5vw, 20px);
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--color-primary);
}

.article-content p {
  margin-bottom: 24px;
}

.article-content ul,
.article-content ol {
  padding-left: 1.5em;
  margin-bottom: 24px;
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.9;
}

.article-content img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 32px 0;
}

.article-content strong {
  color: var(--color-primary);
  font-weight: 700;
}

.article-content blockquote {
  border-left: 3px solid var(--color-primary);
  padding: 16px 24px;
  margin: 32px 0;
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.9;
}

/* 記事末尾 LINE CTA */
.article-cta {
  margin-top: 64px;
  padding: 48px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  text-align: center;
}

.article-cta__label {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.article-cta__title {
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: 700;
  margin-bottom: 12px;
}

.article-cta__desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 32px;
}

/* 記事ナビ */
.article-nav {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.article-nav__back {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.article-nav__back:hover {
  color: var(--color-primary);
}

/* レスポンシブ */
@media (max-width: 900px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .article-hero {
    padding: 120px 0 48px;
  }

  .article-cta {
    padding: 32px 24px;
  }

  .article-nav {
    flex-direction: column;
    align-items: flex-start;
  }
}