/**
 * 良心云机场 · 方案 C：极光方舟 (LXY-ARK-C01)
 * 附属页面与文章单栏排版系统 ark-editorial.css
 */

.ark-page-header {
  padding-top: clamp(140px, 16vh, 180px);
  padding-bottom: clamp(40px, 6vh, 60px);
  background: radial-gradient(circle at 50% 0%, rgba(154, 124, 255, 0.15) 0%, rgba(8, 10, 22, 0) 70%);
  text-align: center;
  position: relative;
}

.ark-breadcrumbs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ark-text-muted);
  margin-bottom: 24px;
}
.ark-breadcrumbs a {
  color: var(--ark-text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}
.ark-breadcrumbs a:hover {
  color: var(--ark-cyan);
}
.ark-breadcrumbs span.sep {
  color: var(--ark-border-subtle);
}

.ark-page-title {
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--ark-text-primary);
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

.ark-page-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-size: 13.5px;
  color: var(--ark-text-muted);
}
.ark-page-meta time {
  color: var(--ark-cyan);
}

/* 专注单栏阅读容器 */
.ark-article-container {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 24px clamp(80px, 10vh, 120px) 24px;
}

.ark-article-body {
  font-size: 17px;
  line-height: 1.85;
  color: #D6DCF0;
}

.ark-article-body p {
  margin-bottom: 28px;
}

.ark-article-body h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  color: var(--ark-text-primary);
  margin-top: 56px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ark-border-subtle);
  letter-spacing: -0.01em;
}

.ark-article-body h3 {
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 600;
  color: var(--ark-silver);
  margin-top: 36px;
  margin-bottom: 16px;
}

.ark-article-body ul,
.ark-article-body ol {
  margin-bottom: 28px;
  padding-left: 24px;
}

.ark-article-body li {
  margin-bottom: 10px;
  color: var(--ark-text-secondary);
}

.ark-article-body strong {
  color: var(--ark-text-primary);
  font-weight: 600;
}

.ark-callout {
  background: rgba(16, 22, 41, 0.8);
  border-left: 4px solid var(--ark-cyan);
  border-radius: 0 12px 12px 0;
  padding: 24px 28px;
  margin: 36px 0;
  border-top: 1px solid var(--ark-border-subtle);
  border-right: 1px solid var(--ark-border-subtle);
  border-bottom: 1px solid var(--ark-border-subtle);
}
.ark-callout-title {
  font-weight: 700;
  color: var(--ark-cyan);
  font-size: 15px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.ark-callout p {
  margin-bottom: 0;
  font-size: 15px;
  color: var(--ark-text-secondary);
  line-height: 1.7;
}

/* 文章内置 FAQ */
.ark-article-faq {
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--ark-border-subtle);
}
.ark-article-faq h3 {
  font-size: 24px;
  color: var(--ark-text-primary);
  margin-bottom: 24px;
}

/* 底部文章内部推荐导航 */
.ark-article-footer-nav {
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--ark-border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.ark-article-footer-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ark-cyan);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
  transition: color 0.2s;
}
.ark-article-footer-nav a:hover {
  color: #FFFFFF;
}

/* 知识库列表专有 */
.ark-knowledge-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.ark-knowledge-card {
  background: var(--ark-bg-card);
  border: 1px solid var(--ark-border-subtle);
  border-radius: 18px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition: all 0.25s ease;
}
.ark-knowledge-card:hover {
  transform: translateY(-3px);
  border-color: var(--ark-border-hover);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}
.ark-knowledge-tag {
  font-size: 12px;
  color: var(--ark-purple);
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.ark-knowledge-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ark-text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}
.ark-knowledge-desc {
  font-size: 14.5px;
  color: var(--ark-text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}
.ark-knowledge-meta {
  font-size: 13px;
  color: var(--ark-cyan);
  display: flex;
  align-items: center;
  gap: 6px;
}

@media (max-width: 768px) {
  .ark-knowledge-grid {
    grid-template-columns: 1fr;
  }
}