/* ==========================================================================
   kuromis 机场 - 知识库与教程板块专用样式表
   ========================================================================== */

/* Knowledge Portal Hub Styles */
.kp-hero {
  padding: 60px 0 40px;
  text-align: center;
  position: relative;
}

.kp-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.kp-breadcrumbs a {
  color: var(--accent-cyan);
}
.kp-breadcrumbs a:hover {
  text-decoration: underline;
}

.kp-hero-title {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.kp-hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 30px;
}

.kp-filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.filter-btn {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.2), rgba(121, 40, 202, 0.25));
  border-color: var(--accent-cyan);
  color: #fff;
}

/* Articles Grid */
.articles-portal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 28px;
  margin-bottom: 70px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.article-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0, 242, 254, 0.4);
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5), 0 0 25px rgba(0, 242, 254, 0.12);
}

.card-tag-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.article-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 242, 254, 0.25);
}

.article-readtime {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.article-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 12px;
}

.article-card-title a {
  color: #fff;
}
.article-card-title a:hover {
  color: var(--accent-cyan);
}

.article-card-excerpt {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.card-footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.article-link-action {
  color: var(--accent-cyan);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.article-card:hover .article-link-action {
  color: #fff;
  text-shadow: var(--text-glow);
}

/* ==========================================================================
   Single Article Detail Page Layout
   ========================================================================== */
.article-detail-wrap {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  padding: 40px 0 90px;
  align-items: start;
}

/* Article Sidebar & Table of Contents */
.article-sidebar {
  position: sticky;
  top: 100px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
}

.toc-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 10px;
}

.toc-list {
  list-style: none;
  font-size: 0.86rem;
}

.toc-list li {
  margin-bottom: 10px;
}

.toc-list a {
  color: var(--text-secondary);
  display: block;
  line-height: 1.4;
  transition: var(--transition);
}

.toc-list a:hover {
  color: var(--accent-cyan);
  transform: translateX(4px);
}

.sidebar-cta-box {
  margin-top: 24px;
  padding: 16px;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.1), rgba(121, 40, 202, 0.15));
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-sm);
  text-align: center;
}

.sidebar-cta-text {
  font-size: 0.82rem;
  color: #cbd5e1;
  margin-bottom: 10px;
}

.sidebar-cta-btn {
  display: block;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent-cyan), #2563eb);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
}

/* Article Main Content */
.article-main-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 44px 48px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.article-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 24px;
  margin-bottom: 32px;
}

.article-meta-tags {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.article-main-title {
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1.3;
  color: #fff;
  margin-bottom: 16px;
}

.article-subtitle-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Typography Inside Articles */
.article-body h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  margin: 40px 0 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(0, 242, 254, 0.2);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #e2e8f0;
  margin: 28px 0 14px;
}

.article-body p {
  font-size: 1rem;
  color: #cbd5e1;
  line-height: 1.85;
  margin-bottom: 20px;
}

.article-body ul, .article-body ol {
  margin: 14px 0 24px 24px;
  color: #cbd5e1;
  line-height: 1.8;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body strong {
  color: #fff;
}

/* Callouts / Alert Blocks */
.info-callout {
  background: rgba(0, 242, 254, 0.06);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  margin: 24px 0;
  color: #e0f2fe;
}

.info-callout p {
  margin: 0;
  font-size: 0.95rem;
  color: #e0f2fe;
}

.warning-callout {
  background: rgba(255, 153, 0, 0.08);
  border-left: 4px solid var(--accent-orange);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  margin: 24px 0;
}
.warning-callout p {
  margin: 0;
  font-size: 0.95rem;
  color: #fed7aa;
}

/* Code Blocks */
.code-block {
  background: #060912;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin: 24px 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #38bdf8;
  line-height: 1.6;
}

/* Comparison Tables */
.article-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9rem;
}

.article-table th, .article-table td {
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
}

.article-table th {
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
  font-weight: 700;
}

.article-table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* In-Article Promotion Card */
.article-promo-card {
  margin: 40px 0;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.12) 0%, rgba(121, 40, 202, 0.15) 100%);
  border: 1px solid rgba(0, 242, 254, 0.4);
  border-radius: var(--radius-md);
  padding: 26px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.promo-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 4px;
}

.promo-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Next / Prev Navigation */
.article-pagination {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.pagination-btn {
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 48%;
}
.pagination-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-cyan);
  border-color: rgba(0, 242, 254, 0.3);
}

@media (max-width: 900px) {
  .article-detail-wrap { grid-template-columns: 1fr; }
  .article-sidebar { display: none; }
  .article-main-content { padding: 28px 20px; }
  .article-main-title { font-size: 1.8rem; }
  .article-promo-card { flex-direction: column; text-align: center; }
}