:root {
  --hub-bg: #f7f8fb;
  --hub-text: #10162f;
  --hub-muted: #6c7082;
  --hub-line: rgba(16, 22, 47, 0.15);
  --hub-orange: #ff6a00;
}

.content-hub {
  background: var(--hub-bg);
  padding: 80px 24px 120px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.hub-head {
  max-width: 1100px;
  margin: 0 auto 40px;
  text-align: left;
}

.hub-head .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  color: var(--hub-orange);
}

.hub-head h2 {
  margin: 10px 0;
  font-size: 2.2rem;
  color: var(--hub-text);
}

.hub-head .description {
  margin: 0;
  color: var(--hub-muted);
  line-height: 1.8;
}

.hub-columns {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
}

.hub-section h2 {
  font-size: 1.4rem;
  margin: 0;
  color: var(--hub-text);
  letter-spacing: 0.05em;
}

.hub-divider {
  width: 100%;
  border-top: 3px solid var(--hub-text);
  margin: 16px 0 0;
}

.article-lines {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.article-lines li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--hub-line);
}

.article-title {
  font-weight: 600;
  color: var(--hub-text);
  text-decoration: none;
}

.article-title:hover {
  color: var(--hub-orange);
}

.article-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 0.9rem;
  color: var(--hub-muted);
  white-space: nowrap;
}

.article-meta time {
  font-variant-numeric: tabular-nums;
}

@media (max-width: 768px) {
  .content-hub {
    padding: 60px 16px;
  }
  .article-lines li {
    flex-direction: column;
    gap: 8px;
  }
  .article-meta {
    justify-content: space-between;
  }
}