:root {
  --quick-oem-blue: #1e40af;
  --quick-oem-light: #3b82f6;
  --quick-oem-dark: #1e3a8a;
  --quick-oem-accent: #06b6d4;
  --bg-soft: #f8fafc;
  --text-main: #1f2937;
  --text-muted: #64748b;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-soft);
  color: var(--text-main);
  line-height: 1.75;
}

.navbar {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #e2e8f0;
  position: sticky;
  top: 0;
  z-index: 50;
}

.hero-gradient {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #06b6d4 100%);
}

.section-title {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35rem;
  bottom: 0.35rem;
  width: 5px;
  background: var(--quick-oem-accent);
  border-radius: 3px;
}

.card-hover {
  transition: transform 0.2s, box-shadow 0.2s;
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -10px rgba(30, 64, 175, 0.15);
}

.metric-card {
  background: white;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  padding: 1.5rem;
  text-align: center;
}

.metric-value {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, #1e40af, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.table-wrap {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th {
  background: #eff6ff;
  color: #1e40af;
  font-weight: 600;
  text-align: left;
  padding: 0.8rem 1rem;
  border-bottom: 2px solid #dbeafe;
}

.data-table td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid #e2e8f0;
}

.data-table tr:hover td {
  background: #f8fafc;
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  background: #dbeafe;
  color: #1e40af;
  margin: 0.25rem 0.25rem 0.25rem 0;
}

.timeline {
  position: relative;
  padding-left: 1.5rem;
  border-left: 3px solid #dbeafe;
}

.timeline-item {
  position: relative;
  padding-bottom: 1.5rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.78rem;
  top: 0.4rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--quick-oem-light);
  border: 2px solid white;
  box-shadow: 0 0 0 2px #dbeafe;
}

.footer-cta {
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  color: #fff;
  text-align: center;
  padding: 3rem 1rem;
}

.footer-cta h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.footer-cta .cta-sub {
  color: rgba(255,255,255,0.75);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.footer-cta .cta-btn {
  display: inline-block;
  background: #f59e0b;
  color: #0f172a;
  font-weight: 700;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  text-decoration: none;
  margin-bottom: 2rem;
  transition: background 0.2s;
}

.footer-cta .cta-btn:hover {
  background: #fbbf24;
}

.footer-cta .qr-hint {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-top: 0.5rem;
}

.footer-cta .cta-footer-text {
  color: rgba(255,255,255,0.7);
  font-size: 0.75rem;
  margin-top: 1rem;
  line-height: 1.8;
}

.footer-cta .cta-slogan {
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
  margin-top: 1rem;
  font-weight: 500;
}

@media (max-width: 768px) {
  .metric-value { font-size: 1.5rem; }
}