body {
  margin: 0;
  color: #1f2937;
  background: #f6f7f9;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
}
.topbar {
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 24px;
  border-bottom: 1px solid #e5e7eb;
  background: #ffffff;
}
.brand {
  color: #111827;
  text-decoration: none;
  font-weight: 700;
  white-space: nowrap;
}
nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 16px;
}
nav a {
  color: #4b5563;
  text-decoration: none;
  font-size: 14px;
}
nav a:hover { color: #111827; }
.home {
  max-width: 1180px;
  margin: 0 auto;
  padding: 34px 22px 56px;
}
.hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  margin-bottom: 24px;
}
.hero h1 {
  margin: 0 0 8px;
  font-size: 30px;
  line-height: 1.25;
}
.hero p {
  margin: 0;
  color: #6b7280;
  font-size: 15px;
}
.updated {
  color: #6b7280;
  font-size: 13px;
  white-space: nowrap;
}
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 210px;
  padding: 18px;
  border: 1px solid #d9dde3;
  border-radius: 8px;
  background: #ffffff;
  color: inherit;
  text-decoration: none;
}
.card:hover {
  border-color: #9ca3af;
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.08);
}
.card .index {
  display: inline-flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: #eef2ff;
  color: #3730a3;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
}
.card h2 {
  margin: 0;
  font-size: 18px;
  line-height: 1.35;
}
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}
.source {
  margin-top: 6px;
  color: #6b7280;
  font-size: 13px;
}
.tag {
  flex: 0 0 auto;
  padding: 5px 9px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 13px;
  white-space: nowrap;
}
.blue { background: #dbeafe; color: #1d4ed8; border-color: #bfdbfe; }
.gray { background: #f3f4f6; color: #4b5563; border-color: #d1d5db; }
.amber { background: #fef3c7; color: #92400e; border-color: #fde68a; }
.green { background: #dcfce7; color: #166534; border-color: #bbf7d0; }
.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.metric {
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 10px;
  background: #fafafa;
}
.metric-label {
  color: #6b7280;
  font-size: 12px;
  margin-bottom: 5px;
}
.metric-value {
  font-size: 17px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.note {
  margin: 0;
  color: #4b5563;
  line-height: 1.65;
  font-size: 14px;
}
.card-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid #eef0f3;
  color: #6b7280;
  font-size: 13px;
}
.meta {
  margin-top: 22px;
  color: #6b7280;
  font-size: 13px;
}
.report-page {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 18px 48px;
}
.md-report, .empty {
  background: #ffffff;
  border: 1px solid #d9dde3;
  border-radius: 8px;
  padding: 24px;
}
.md-report h1 { margin-top: 0; font-size: 24px; }
.md-report h2 { margin-top: 28px; font-size: 20px; }
.md-report h3 { margin-top: 22px; font-size: 17px; }
.md-report p, .md-report li {
  line-height: 1.75;
  color: #374151;
}
.md-report code {
  padding: 1px 5px;
  border-radius: 4px;
  background: #f3f4f6;
}
.md-report pre {
  overflow-x: auto;
  padding: 14px;
  border-radius: 8px;
  background: #111827;
  color: #e5e7eb;
}
.eyebrow {
  margin: 0 0 8px;
  color: #6b7280;
  font-size: 13px;
}
.button {
  display: inline-flex;
  margin-top: 14px;
  padding: 8px 12px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  color: #111827;
  text-decoration: none;
  background: #ffffff;
}
@media (max-width: 720px) {
  .topbar { align-items: flex-start; flex-direction: column; padding: 14px 18px; }
  nav { justify-content: flex-start; }
  .hero { align-items: flex-start; flex-direction: column; }
  .grid { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr; }
}