/* 稀土科研动态列表页 */
.hzbgs-page-research-news {
  --rn-accent: rgba(0, 113, 227, 0.92);
  --rn-surface: rgba(255, 255, 255, 0.72);
  --rn-border: rgba(255, 255, 255, 0.55);
}

.hzbgs-rn-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 20px 56px;
}

.hzbgs-rn-hero {
  margin-bottom: 28px;
  padding: 24px 22px;
  border-radius: 20px;
  background: linear-gradient(
    145deg,
    rgba(230, 245, 255, 0.55) 0%,
    rgba(255, 255, 255, 0.65) 50%,
    rgba(248, 250, 252, 0.9) 100%
  );
  border: 1px solid var(--rn-border);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.hzbgs-rn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  padding: 8px 14px 8px 12px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--rn-accent);
  text-decoration: none;
  border-radius: 999px;
  background: rgba(0, 113, 227, 0.08);
  border: 1px solid rgba(0, 113, 227, 0.2);
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
  width: fit-content;
}

.hzbgs-rn-back:hover {
  background: rgba(0, 113, 227, 0.14);
  border-color: rgba(0, 113, 227, 0.32);
  color: rgba(0, 90, 200, 1);
  text-decoration: none;
}

.hzbgs-rn-back:focus-visible {
  outline: 2px solid var(--rn-accent);
  outline-offset: 3px;
}

.hzbgs-rn-back i {
  font-size: 12px;
  opacity: 0.92;
}

.hzbgs-rn-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.35rem, 2vw + 0.6rem, 1.75rem);
  font-weight: 650;
  letter-spacing: -0.03em;
  color: rgba(0, 0, 0, 0.9);
}

.hzbgs-rn-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: rgba(60, 60, 67, 0.82);
  max-width: 72ch;
}

.hzbgs-rn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 18px;
}

.hzbgs-rn-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 18px 18px 16px;
  border-radius: 18px;
  background: var(--rn-surface);
  backdrop-filter: blur(16px) saturate(1.5);
  -webkit-backdrop-filter: blur(16px) saturate(1.5);
  border: 1px solid var(--rn-border);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.06);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.hzbgs-rn-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.08);
  border-color: rgba(0, 113, 227, 0.22);
}

.hzbgs-rn-cardTop {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  margin-bottom: 10px;
}

.hzbgs-rn-date {
  font-size: 12px;
  font-weight: 600;
  color: rgba(60, 60, 67, 0.55);
  letter-spacing: 0.02em;
}

.hzbgs-rn-cat {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(0, 113, 227, 0.1);
  color: var(--rn-accent);
}

.hzbgs-rn-cardTitle {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 650;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: rgba(0, 0, 0, 0.9);
}

.hzbgs-rn-source {
  margin: 0 0 10px;
  font-size: 12px;
  color: rgba(60, 60, 67, 0.65);
}

.hzbgs-rn-source strong {
  font-weight: 600;
  color: rgba(60, 60, 67, 0.85);
}

.hzbgs-rn-summary {
  margin: 0 0 12px;
  flex: 1 1 auto;
  font-size: 14px;
  line-height: 1.55;
  color: rgba(60, 60, 67, 0.88);
}

.hzbgs-rn-impact {
  margin: 0 0 14px;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.45;
  color: rgba(40, 80, 60, 0.9);
  background: rgba(45, 160, 90, 0.08);
  border-radius: 12px;
  border-left: 3px solid rgba(45, 160, 90, 0.45);
}

.hzbgs-rn-impactLabel {
  font-weight: 700;
  margin-right: 6px;
  color: rgba(30, 100, 60, 0.95);
}

.hzbgs-rn-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--rn-accent);
  text-decoration: none;
}

.hzbgs-rn-link:hover {
  text-decoration: underline;
}

.hzbgs-rn-footnote {
  margin-top: 36px;
  padding: 16px 18px;
  font-size: 12px;
  line-height: 1.5;
  color: rgba(60, 60, 67, 0.65);
  background: rgba(0, 0, 0, 0.03);
  border-radius: 14px;
}

@media (prefers-reduced-motion: reduce) {
  .hzbgs-rn-card {
    transition: none;
  }

  .hzbgs-rn-card:hover {
    transform: none;
  }
}