/* ==========================================================================
   魔戒机场 · 知识科普与 SEO 文章独立样式表
   项目代号: MRA-SILVER-C03
   设计原则: 单栏高易读性 / 严谨排版 / 响应式导航 / 统一暗夜银环视觉
   ========================================================================== */

.article-page {
  padding: 60px 0 100px;
}

.article-container {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 面包屑导航 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}
.breadcrumb a {
  color: var(--color-silver-dim);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.breadcrumb a:hover {
  color: var(--color-ice-blue);
}
.breadcrumb-separator {
  color: rgba(232, 240, 247, 0.3);
}

/* 文章头部 */
.article-header {
  margin-bottom: 40px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-silver);
}
.article-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-ice-blue);
  background: rgba(145, 221, 245, 0.1);
  border: 1px solid rgba(145, 221, 245, 0.25);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.article-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-silver);
  margin-bottom: 18px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* 导读摘要框 */
.article-summary-card {
  background: rgba(11, 20, 34, 0.7);
  border-left: 4px solid var(--color-ice-blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
  margin-bottom: 40px;
  font-size: 0.96rem;
  color: var(--color-silver-dim);
  line-height: 1.7;
}

/* 正文样式 */
.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #D3DFEB;
}
.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-silver);
  margin: 44px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(232, 240, 247, 0.1);
}
.article-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #E0EBF5;
  margin: 32px 0 14px;
}
.article-body p {
  margin-bottom: 22px;
}
.article-body ul, .article-body ol {
  margin: 0 0 24px 28px;
  color: var(--color-text-muted);
}
.article-body li {
  margin-bottom: 10px;
}
.article-body strong {
  color: #FFFFFF;
}
.article-body a {
  color: var(--color-ice-blue);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.article-body a:hover {
  color: #FFFFFF;
}

/* 文章内部 FAQ 模块 */
.article-faq {
  margin-top: 50px;
  padding-top: 36px;
  border-top: 1px solid var(--border-silver);
}
.article-faq h3 {
  margin-bottom: 20px;
}

/* 文章底部 CTA 与相关阅读 */
.article-footer-cta {
  margin-top: 60px;
  padding: 36px;
  background: linear-gradient(135deg, rgba(14, 24, 41, 0.8) 0%, rgba(5, 8, 14, 0.9) 100%);
  border: 1px solid rgba(145, 221, 245, 0.3);
  border-radius: var(--radius-lg);
  text-align: center;
}
.article-footer-cta h4 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-silver);
  margin-bottom: 12px;
}
.article-footer-cta p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  max-width: 540px;
  margin: 0 auto 24px;
}

.related-articles {
  margin-top: 50px;
}
.related-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  list-style: none;
  margin: 20px 0 0 0 !important;
}
.related-item a {
  display: block;
  padding: 16px 20px;
  background: rgba(14, 24, 41, 0.5);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-sm);
  color: var(--color-silver-dim);
  text-decoration: none;
  font-size: 0.92rem;
  transition: all var(--transition-fast);
}
.related-item a:hover {
  background: rgba(14, 24, 41, 0.9);
  border-color: var(--color-ice-blue);
  color: #FFFFFF;
}

/* 科普中心列表页专有样式 */
.articles-catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.catalog-card {
  background: var(--color-space-card);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  text-decoration: none;
}
.catalog-card:hover {
  border-color: rgba(145, 221, 245, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}
.catalog-card-tag {
  font-size: 0.75rem;
  color: var(--color-ice-blue);
  font-weight: 600;
  margin-bottom: 12px;
}
.catalog-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-silver);
  margin-bottom: 12px;
  line-height: 1.4;
}
.catalog-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}
.catalog-card-arrow {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ice-blue);
  display: flex;
  align-items: center;
  gap: 6px;
}

@media (max-width: 680px) {
  .related-list {
    grid-template-columns: 1fr;
  }
  .articles-catalog-grid {
    grid-template-columns: 1fr;
  }
  .article-title {
    font-size: 1.6rem;
  }
}