/* PE Laws - 私募股权基金监管法规知识库 */

:root {
  --color-bg: #ffffff;
  --color-surface: #f8f9fa;
  --color-surface-alt: #f1f3f5;
  --color-text: #1a1a2e;
  --color-text-secondary: #495057;
  --color-text-muted: #6c757d;
  --color-border: #dee2e6;
  --color-border-light: #e9ecef;
  --color-accent: #1a1a2e;
  --color-accent-light: #2d2d44;
  --color-primary: #07C160;
  --color-primary-light: #e6f7ed;
  --color-warning: #f59e0b;
  --color-warning-light: #fef3c7;
  --color-danger: #dc2626;
  --color-danger-light: #fef2f2;
  --color-success: #059669;
  --color-success-light: #ecfdf5;
  --color-info: #2563eb;
  --color-info-light: #eff6ff;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Monaco", "Inconsolata", "Fira Code", "Noto Sans Mono", monospace;
  --radius: 6px;
  --radius-lg: 10px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --max-width: 1200px;
  --header-height: 56px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 15px; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border-light);
  height: var(--header-height);
  display: flex; align-items: center;
}

.header-inner {
  max-width: var(--max-width); width: 100%; margin: 0 auto;
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}

.site-logo {
  font-size: 1.1rem; font-weight: 700; color: var(--color-text);
  text-decoration: none; display: flex; align-items: center; gap: 8px;
}

.site-logo .logo-mark {
  width: 24px; height: 24px; background: var(--color-primary);
  border-radius: 4px; display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 0.7rem; font-weight: 700;
}

.site-nav { display: flex; gap: 4px; }

.site-nav a {
  padding: 6px 12px; border-radius: var(--radius);
  font-size: 0.88rem; color: var(--color-text-secondary);
  text-decoration: none; transition: all 0.15s;
}

.site-nav a:hover, .site-nav a.active {
  color: var(--color-text); background: var(--color-surface-alt);
}

.site-nav a.mother-site-link {
  color: var(--color-primary);
  border: 1px solid var(--color-border-light);
  background: var(--color-primary-light);
}

.site-nav a.mother-site-link:hover {
  color: var(--color-primary);
  background: #d7eef2;
}

/* Mobile nav */
.mobile-menu-btn { display: none; background: none; border: none; font-size: 1.3rem; cursor: pointer; }

/* Container */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* Hero */
.hero {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  padding: 48px 0 36px;
}

.hero h1 {
  font-size: 1.9rem; font-weight: 700; line-height: 1.3;
  margin-bottom: 12px; color: var(--color-text);
}

.hero .subtitle {
  font-size: 1.05rem; color: var(--color-text-secondary);
  max-width: 640px; margin-bottom: 8px;
}

.hero .meta {
  font-size: 0.82rem; color: var(--color-text-muted);
  display: flex; gap: 16px; flex-wrap: wrap; margin-top: 4px;
}

.hero .meta span { display: flex; align-items: center; gap: 4px; }

/* Quick nav cards */
.quick-nav { padding: 32px 0; }

.quick-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.quick-nav-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.15s;
  display: flex; flex-direction: column; gap: 8px;
}

.quick-nav-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
}

.quick-nav-card .card-icon {
  width: 36px; height: 36px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; background: var(--color-surface-alt);
}

.quick-nav-card .card-title { font-size: 0.95rem; font-weight: 600; }

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

.quick-nav-card .card-tags {
  display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; padding-top: 8px;
}

/* Status badges */
.badge {
  display: inline-flex; align-items: center;
  font-size: 0.72rem; font-weight: 600;
  padding: 2px 8px; border-radius: 20px;
  letter-spacing: 0.01em; line-height: 1.4;
  white-space: nowrap;
}

.badge-valid { background: var(--color-success-light); color: var(--color-success); }
.badge-upcoming { background: var(--color-info-light); color: var(--color-info); }
.badge-draft { background: var(--color-warning-light); color: var(--color-warning); }
.badge-policy { background: #f3e8ff; color: #7c3aed; }
.badge-self { background: var(--color-surface-alt); color: var(--color-text-secondary); }
.badge-guide { background: var(--color-surface-alt); color: var(--color-text-muted); }
.badge-review { background: var(--color-danger-light); color: var(--color-danger); }
.badge-official-rule { background: #dbeafe; color: #1e40af; }
.badge-official-policy { background: #f3e8ff; color: #7c3aed; }
.badge-self-regulatory { background: #ecfdf5; color: #065f46; }
.badge-model-synthesis { background: #fef2f2; color: #991b1b; }

/* Page layout */
.page-header { padding: 32px 0 24px; border-bottom: 1px solid var(--color-border-light); margin-bottom: 24px; }
.page-header h1 { font-size: 1.5rem; font-weight: 700; margin-bottom: 6px; }
.page-header p { color: var(--color-text-secondary); font-size: 0.92rem; }

.page-body { padding-bottom: 64px; }

/* Filters */
.filter-bar {
  display: flex; gap: 12px; flex-wrap: wrap; align-items: center;
  padding: 16px 0; margin-bottom: 8px;
}

.filter-group { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

.filter-label { font-size: 0.82rem; color: var(--color-text-muted); font-weight: 500; }

.filter-btn {
  font-size: 0.8rem; padding: 4px 12px; border-radius: 20px;
  border: 1px solid var(--color-border-light); background: var(--color-bg);
  color: var(--color-text-secondary); cursor: pointer; transition: all 0.15s;
}

.filter-btn:hover { border-color: var(--color-border); }
.filter-btn.active {
  background: var(--color-accent); color: #fff; border-color: var(--color-accent);
}

/* Regulation cards */
.reg-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 16px;
  transition: all 0.15s;
}

.reg-card:hover { border-color: var(--color-border); box-shadow: var(--shadow); }

.reg-card-header {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 12px;
  margin-bottom: 12px;
}

.reg-card-title {
  font-size: 1.05rem; font-weight: 600; line-height: 1.4;
}

.reg-card-title a { color: var(--color-text); text-decoration: none; }
.reg-card-title a:hover { color: var(--color-primary); text-decoration: underline; }

.reg-card-meta {
  display: flex; gap: 12px; flex-wrap: wrap;
  font-size: 0.82rem; color: var(--color-text-muted);
  margin-bottom: 12px;
}

.reg-card-meta span { display: flex; align-items: center; gap: 4px; }

.reg-card-body { font-size: 0.88rem; color: var(--color-text-secondary); line-height: 1.6; }

.reg-card-body p { margin-bottom: 8px; }

.reg-card-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }

.reg-card-tag {
  font-size: 0.72rem; padding: 2px 8px; border-radius: 4px;
  background: var(--color-surface-alt); color: var(--color-text-muted);
}

/* Timeline */
.timeline { position: relative; padding-left: 24px; }
.timeline::before {
  content: ''; position: absolute; left: 5px; top: 0; bottom: 0;
  width: 2px; background: var(--color-border-light);
}

.timeline-item { position: relative; padding-bottom: 28px; }
.timeline-item::before {
  content: ''; position: absolute; left: -24px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--color-bg); border: 2px solid var(--color-border);
}
.timeline-item.active::before { border-color: var(--color-primary); background: var(--color-primary-light); }
.timeline-item.current::before { border-color: var(--color-warning); background: var(--color-warning); }

.timeline-year {
  font-size: 0.78rem; font-weight: 700; color: var(--color-primary);
  margin-bottom: 2px; letter-spacing: 0.02em;
}

.timeline-title { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.timeline-file { font-size: 0.78rem; color: var(--color-text-muted); margin-bottom: 6px; }
.timeline-body { font-size: 0.88rem; color: var(--color-text-secondary); line-height: 1.6; }
.timeline-body p { margin-bottom: 6px; }

/* Manager map sections */
.map-section { margin-bottom: 32px; }
.map-section-title {
  font-size: 1.15rem; font-weight: 700; padding: 12px 0;
  border-bottom: 2px solid var(--color-accent); display: inline-block;
  margin-bottom: 16px;
}

.map-table-wrapper { overflow-x: auto; }

.map-table {
  width: 100%; border-collapse: collapse; font-size: 0.85rem;
  min-width: 800px;
}

.map-table th {
  background: var(--color-surface); text-align: left; padding: 10px 12px;
  font-weight: 600; font-size: 0.8rem; color: var(--color-text-secondary);
  border-bottom: 2px solid var(--color-border-light);
  white-space: nowrap;
}

.map-table td {
  padding: 10px 12px; border-bottom: 1px solid var(--color-border-light);
  vertical-align: top; line-height: 1.5;
}

.map-table tr:hover td { background: var(--color-surface); }

.map-table .col-source { width: 18%; min-width: 160px; }
.map-table .col-points { width: 25%; min-width: 200px; }
.map-table .col-questions { width: 22%; min-width: 180px; }
.map-table .col-risk { width: 18%; min-width: 140px; }
.map-table .col-suggest { width: 17%; min-width: 150px; }

/* Lifecycle stages */
.stage-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px;
}

.stage-card {
  background: var(--color-bg); border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg); padding: 20px;
  transition: all 0.15s;
}

.stage-card:hover { border-color: var(--color-border); box-shadow: var(--shadow); }

.stage-card-header {
  display: flex; align-items: center; gap: 10px; margin-bottom: 14px;
}

.stage-number {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--color-accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 700; flex-shrink: 0;
}

.stage-card-title { font-size: 1rem; font-weight: 600; line-height: 1.3; }

.stage-card-body { font-size: 0.85rem; color: var(--color-text-secondary); line-height: 1.6; }
.stage-card-body p { margin-bottom: 8px; }
.stage-card-body .label { font-weight: 600; color: var(--color-text); font-size: 0.78rem; }

.stage-topics { margin-top: 12px; }
.stage-topics .topic-label { font-size: 0.75rem; font-weight: 600; color: var(--color-text-muted); margin-bottom: 4px; }
.stage-topics .topic-list { display: flex; flex-wrap: wrap; gap: 6px; }
.stage-topics .topic-tag {
  font-size: 0.72rem; padding: 2px 8px; border-radius: 4px;
  background: var(--color-primary-light); color: var(--color-primary);
}

/* Special pages */
.special-page { background: var(--color-surface); border-radius: var(--radius-lg); padding: 32px; margin-bottom: 24px; }
.special-page h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 16px; }
.special-page h3 { font-size: 1rem; font-weight: 600; margin: 20px 0 10px; }
.special-page p { font-size: 0.9rem; color: var(--color-text-secondary); margin-bottom: 10px; line-height: 1.7; }
.special-page ul { margin-left: 20px; margin-bottom: 12px; }
.special-page ul li { font-size: 0.88rem; color: var(--color-text-secondary); margin-bottom: 6px; line-height: 1.6; }

.highlight-box {
  background: var(--color-warning-light); border-left: 3px solid var(--color-warning);
  padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0; margin: 16px 0;
  font-size: 0.88rem; color: var(--color-text-secondary); line-height: 1.6;
}

.danger-box {
  background: var(--color-danger-light); border-left: 3px solid var(--color-danger);
  padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0; margin: 16px 0;
  font-size: 0.88rem; color: var(--color-text-secondary); line-height: 1.6;
}

.info-box {
  background: var(--color-info-light); border-left: 3px solid var(--color-info);
  padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0; margin: 16px 0;
  font-size: 0.88rem; color: var(--color-text-secondary); line-height: 1.6;
}

/* Checklist */
.checklist-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
.checklist-table th {
  background: var(--color-surface); text-align: left; padding: 10px 12px;
  font-weight: 600; font-size: 0.78rem; color: var(--color-text-secondary);
  border-bottom: 2px solid var(--color-border-light); white-space: nowrap;
}
.checklist-table td { padding: 8px 12px; border-bottom: 1px solid var(--color-border-light); vertical-align: top; line-height: 1.5; }
.checklist-table tr:hover td { background: var(--color-surface); }

/* Guide cards */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}
.guide-card {
  display: flex;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.15s;
}
.guide-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
}
.guide-card-icon {
  font-size: 2rem;
  flex-shrink: 0;
  line-height: 1;
}
.guide-card-content {
  flex: 1;
  min-width: 0;
}
.guide-card-title {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 6px;
}
.guide-card-desc {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}
.guide-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .guide-grid { grid-template-columns: 1fr; }
  .guide-card { flex-direction: column; gap: 10px; }
}

/* Footer */
.site-footer {
  background: var(--color-surface); border-top: 1px solid var(--color-border-light);
  padding: 32px 0; margin-top: 48px;
}

.footer-inner { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

.footer-disclaimer {
  font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.6;
  border-left: 3px solid var(--color-border-light); padding-left: 14px;
  margin-bottom: 16px;
}

.footer-meta { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 0.78rem; color: var(--color-text-muted); }

/* Utilities */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }

.hidden { display: none; }

/* Responsive */
@media (max-width: 768px) {
  .site-nav { display: none; }
  .mobile-menu-btn { display: block; }
  .header-inner { padding: 0 16px; }
  .container { padding: 0 16px; }
  .hero h1 { font-size: 1.4rem; }
  .quick-nav-grid { grid-template-columns: 1fr; }
  .stage-grid { grid-template-columns: 1fr; }
  .reg-card-header { flex-direction: column; }
  .map-table { font-size: 0.78rem; }
  .special-page { padding: 20px; }
  .filter-bar { flex-direction: column; align-items: flex-start; }
  .footer-meta { flex-direction: column; }
}

/* Mobile menu overlay */
.mobile-nav-overlay {
  position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,0.4);
  display: none;
}
.mobile-nav-overlay.active { display: block; }

.mobile-nav-panel {
  position: fixed; top: 0; right: 0; bottom: 0; width: 260px;
  background: var(--color-bg); z-index: 201;
  padding: 20px; transform: translateX(100%); transition: transform 0.2s;
  box-shadow: -4px 0 12px rgba(0,0,0,0.1);
}
.mobile-nav-panel.active { transform: translateX(0); }

.mobile-nav-panel a {
  display: block; padding: 10px 0; color: var(--color-text);
  text-decoration: none; font-size: 0.95rem; border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav-close {
  position: absolute; top: 12px; right: 16px;
  background: none; border: none; font-size: 1.5rem; cursor: pointer;
}