/* Langhui news article layout — CSP-safe replacement for Tailwind CDN */
:root {
  --na-primary: #E53E3E;
  --na-navy: #1A365D;
  --na-ink: #1A202C;
  --na-muted: #64748B;
  --na-line: #E2E8F0;
  --na-bg: #F8FAFC;
}
body.na-body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif;
  color: var(--na-ink);
  background: #fff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.na-crumb {
  background: var(--na-bg);
  border-bottom: 1px solid var(--na-line);
}
.na-crumb-inner {
  width: min(896px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 0.75rem 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0;
  font-size: 0.875rem;
}
.na-crumb a { color: var(--na-muted); text-decoration: none; }
.na-crumb a:hover { color: var(--na-primary); }
.na-crumb .sep { margin: 0 0.5rem; color: #94A3B8; }
.na-crumb .cur { color: var(--na-ink); font-weight: 600; }

.na-hero {
  width: min(896px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 0.5rem;
}
.na-tag {
  display: inline-block;
  background: #DBEAFE;
  color: #1D4ED8;
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}
.na-hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  line-height: 1.3;
  color: var(--na-ink);
  font-weight: 800;
}
.na-lead {
  margin: 0 0 1rem;
  font-size: 1.0625rem;
  color: var(--na-muted);
}
.na-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
  color: #94A3B8;
  margin-bottom: 1.5rem;
}
.na-cover {
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 10px 30px -12px rgba(15, 36, 64, 0.28);
  margin-bottom: 2rem;
}
.na-cover img {
  display: block;
  width: 100%;
  height: auto;
}

.na-article {
  width: min(896px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 0 0 3rem;
}
.na-section { margin-bottom: 2.5rem; }
.na-section h2 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--na-ink);
}
.na-section h2 .bar {
  width: 0.375rem;
  height: 1.75rem;
  background: #2563EB;
  border-radius: 999px;
  flex: none;
}
.na-prose {
  color: #334155;
  font-size: 1.05rem;
  line-height: 1.85;
}
.na-prose p { margin: 0 0 1rem; }
.na-prose p:last-child { margin-bottom: 0; }

.na-cta {
  margin: 2rem 0 0;
  padding: 1.5rem;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, #0F2440, #1A365D);
  color: #fff;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}
.na-cta p { margin: 0; color: rgba(226, 236, 250, 0.92); font-size: 0.95rem; max-width: 36rem; }
.na-cta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border-radius: 0.65rem;
  background: var(--na-primary);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 10px 22px rgba(229, 62, 62, 0.28);
}
.na-cta a:hover { background: #C53030; }

@media (max-width: 640px) {
  .na-hero, .na-article { width: min(100% - 1.5rem, 896px); }
  .na-cta { flex-direction: column; align-items: stretch; }
}