/* ==========================================================================
   云翼网络 (yunyiwangluo.sbs) 专栏文章专属样式表
   零外部依赖 | 纯原生 CSS3 | 极致阅读体验与 SEO 结构化布局
   ========================================================================== */

@import url("style.css");

/* 文章页面特有布局规范 */
.article-page {
  padding-top: 110px;
  padding-bottom: 80px;
}

.article-container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 面包屑导航 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--accent-cyan);
}

.breadcrumb-separator {
  color: var(--text-muted);
}

/* 文章头部区域 */
.article-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 30px;
  margin-bottom: 40px;
}

.article-main-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 900;
  color: #ffffff;
  line-height: 1.35;
  margin-bottom: 18px;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.86rem;
  color: var(--text-secondary);
}

.article-meta-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* 关键词标签区 */
.article-keywords-box {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.keyword-label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.keyword-tag {
  font-size: 0.78rem;
  padding: 3px 10px;
  background: rgba(0, 245, 255, 0.08);
  border: 1px solid rgba(0, 245, 255, 0.22);
  border-radius: var(--radius-full);
  color: var(--accent-cyan);
}

/* 核心正文样式 */
.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #cbd5e1;
}

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

.article-body h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: #ffffff;
  margin: 48px 0 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(56, 189, 248, 0.25);
  position: relative;
}

.article-body h2::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 50px;
  height: 2px;
  background: var(--gradient-brand);
}

.article-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #f1f5f9;
  margin: 32px 0 16px;
}

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

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 10px;
  color: #cbd5e1;
}

.article-body strong {
  color: #ffffff;
  font-weight: 700;
}

/* 警告/高亮/引用卡片 */
.callout-box {
  background: rgba(16, 24, 42, 0.9);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 24px;
  margin: 28px 0;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.callout-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent-cyan);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.callout-content {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* 文章内部内嵌的优惠与注册卡片 */
.article-inline-cta {
  background: linear-gradient(135deg, rgba(0, 136, 255, 0.15) 0%, rgba(168, 85, 247, 0.12) 100%);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin: 40px 0;
  text-align: center;
}

.article-inline-cta h4 {
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
}

.article-inline-cta p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 20px;
}

/* 文章内部对比表格 */
.article-table-wrap {
  overflow-x: auto;
  margin: 28px 0;
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
}

.article-table th, 
.article-table td {
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: left;
}

.article-table th {
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  font-weight: 700;
}

.article-table td {
  background: rgba(16, 24, 42, 0.6);
}

.article-table tr:hover td {
  background: rgba(24, 35, 60, 0.7);
}

/* 内部跳转/相关文章导航 (Internal Links) */
.related-articles-section {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.related-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 24px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all var(--transition-fast);
}

.related-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.related-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
  line-height: 1.4;
}

.related-card:hover .related-card-title {
  color: var(--accent-cyan);
}

.related-card-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
  .article-container {
    padding: 0 16px;
  }
}