/* ==========================================================================
   JXKit Compliance Knowledge Hub Styles (hub.css)
   Applied to /rules (统一知识库与落地页导航大厅)
   ========================================================================== */

.hub-hero {
  text-align: center;
  margin-bottom: 3.5rem;
}

.hub-hero .header-badge {
  margin: 0 auto 1.25rem;
}

.hub-hero h1 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
  color: var(--text-primary);
}

.hub-hero p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 板块大分类 */
.hub-pillar {
  margin-bottom: 3.5rem;
}

.hub-pillar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hub-pillar-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hub-pillar-count {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* 落地页卡片网格 */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.25rem;
}

.hub-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
  transition: all 0.22s ease;
  position: relative;
  overflow: hidden;
}

.hub-card:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-cf);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(243, 128, 32, 0.12);
}

.hub-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.hub-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  white-space: nowrap;
}

.hub-tag.tag-hot { background: rgba(239, 68, 68, 0.12); color: #ef4444; border: 1px solid rgba(239, 68, 68, 0.25); }
.hub-tag.tag-guide { background: rgba(243, 128, 32, 0.12); color: var(--accent-cf); border: 1px solid rgba(243, 128, 32, 0.25); }
.hub-tag.tag-tool { background: rgba(16, 185, 129, 0.12); color: #10b981; border: 1px solid rgba(16, 185, 129, 0.25); }
.hub-tag.tag-law { background: rgba(139, 92, 246, 0.12); color: #a78bfa; border: 1px solid rgba(139, 92, 246, 0.25); }

.hub-card-title {
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  transition: color 0.2s;
}

.hub-card:hover .hub-card-title {
  color: var(--accent-cf);
}

.hub-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.hub-card-action {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--accent-cf);
}

.hub-card-action svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s;
}

.hub-card:hover .hub-card-action svg {
  transform: translateX(4px);
}