/* ============================================
   PharmaPulse - 样式表 v2
   主色: #1A3A6B (深蓝)  辅色: #2563EB (亮蓝)
   ============================================ */

/* -- Reset & Base -- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #1A3A6B;
  --primary-light: #2563EB;
  --primary-bg: #EFF6FF;
  --accent: #3B82F6;
  --high: #E53E3E;
  --high-bg: #FFF5F5;
  --medium: #D69E2E;
  --medium-bg: #FFFFF0;
  --low: #CBD5E0;
  --low-bg: #F7FAFC;
  --text: #1A202C;
  --text-secondary: #4A5568;
  --text-muted: #718096;
  --border: #E2E8F0;
  --bg: #F8FAFC;
  --white: #FFFFFF;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.05);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: all 0.2s ease;
  --max-width: 1200px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary-light);
  text-decoration: none;
  transition: var(--transition);
}
a:hover { color: var(--accent); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* -- Header -- */
.header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
  flex-shrink: 0;
}
.logo:hover { color: var(--primary); opacity: 0.9; }
.logo-icon { font-size: 1.5rem; }

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

.nav-link {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.nav-link:hover {
  background: var(--primary-bg);
  color: var(--primary);
}
.nav-link.active {
  background: var(--primary-bg);
  color: var(--primary-light);
  font-weight: 600;
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Date Navigation */
.date-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.date-nav-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--white);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.7rem;
  transition: var(--transition);
}
.date-nav-btn:hover:not(.disabled) {
  border-color: var(--accent);
  color: var(--primary-light);
  background: var(--primary-bg);
}
.date-nav-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.date-picker {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: var(--white);
  cursor: pointer;
  outline: none;
  transition: var(--transition);
}
.date-picker:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.1); }

.btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-subscribe {
  background: var(--primary);
  color: var(--white);
}
.btn-subscribe:hover {
  background: var(--primary-light);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Refresh Button */
.btn-refresh {
  background: linear-gradient(135deg, #10B981, #059669);
  color: var(--white);
  gap: 6px;
  position: relative;
  overflow: hidden;
}
.btn-refresh:hover {
  background: linear-gradient(135deg, #059669, #047857);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-refresh.spinning .refresh-icon {
  animation: spin 1s linear infinite;
}
.refresh-icon {
  font-size: 0.95rem;
  display: inline-block;
}

/* Refresh Modal */
.refresh-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
}

.refresh-modal {
  background: var(--white);
  border-radius: 16px;
  width: 90%;
  max-width: 480px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  animation: slideUp 0.3s ease;
  overflow: hidden;
}

.refresh-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.refresh-modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0;
}

.refresh-modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.refresh-modal-close:hover {
  background: var(--border);
  color: var(--text);
}

.refresh-modal-body {
  padding: 24px;
}

.refresh-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.refresh-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.refresh-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
}
.refresh-option:hover {
  border-color: var(--accent);
  background: var(--primary-bg);
}
.refresh-option input[type="radio"] {
  margin-top: 3px;
  accent-color: var(--primary-light);
}
.refresh-option input[type="radio"]:checked ~ .option-content strong {
  color: var(--primary-light);
}
.refresh-option:has(input:checked) {
  border-color: var(--primary-light);
  background: var(--primary-bg);
}

.option-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.option-content strong {
  font-size: 0.95rem;
  color: var(--text);
}
.option-content small {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.btn-start-refresh {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, #10B981, #059669);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-start-refresh:hover {
  background: linear-gradient(135deg, #059669, #047857);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-start-refresh:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.refresh-progress {
  text-align: center;
  padding: 20px 0 8px;
}

.refresh-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: #10B981;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 12px;
}

.refresh-status {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.refresh-elapsed {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.btn-cancel-refresh {
  margin-top: 12px;
  padding: 8px 24px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}
.btn-cancel-refresh:hover {
  background: #FFF5F5;
  border-color: #FEB2B2;
  color: #C53030;
}

.refresh-result {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
}
.refresh-result.success {
  background: #F0FFF4;
  color: #276749;
  border: 1px solid #C6F6D5;
}
.refresh-result.error {
  background: #FFF5F5;
  color: #C53030;
  border: 1px solid #FED7D7;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Mobile menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 12px 20px 16px;
  border-top: 1px solid var(--border);
  background: var(--white);
}
.mobile-menu.show { display: flex; }
.mobile-menu .nav-link { padding: 10px 0; }

/* -- Overview Section -- */
.overview {
  padding: 32px 0 24px;
}

.overview-header {
  margin-bottom: 24px;
}

.overview-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.overview-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.last-updated {
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--primary-bg);
  padding: 2px 10px;
  border-radius: 12px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 16px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  border-top: 3px solid var(--border);
  transition: var(--transition);
  cursor: default;
}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-total { border-top-color: var(--primary); }
.stat-domestic { border-top-color: #E53E3E; }
.stat-international { border-top-color: #2563EB; }
.stat-regulatory { border-top-color: #6366F1; }
.stat-clinical { border-top-color: #10B981; }
.stat-corporate { border-top-color: #F59E0B; }
.stat-market { border-top-color: #EC4899; }

.stat-number {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.stat-total .stat-number { color: var(--primary); }
.stat-domestic .stat-number { color: #E53E3E; }
.stat-international .stat-number { color: #2563EB; }
.stat-regulatory .stat-number { color: #6366F1; }
.stat-clinical .stat-number { color: #10B981; }
.stat-corporate .stat-number { color: #F59E0B; }
.stat-market .stat-number { color: #EC4899; }

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 500;
}

/* -- Filter Bar -- */
.filter-bar {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.filter-top {
  margin-bottom: 12px;
}

/* Region Bar / Tabs */
.region-bar {
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.region-tabs {
  display: flex;
  gap: 8px;
}

.region-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  background: var(--white);
  border: 2px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.region-tab:hover {
  border-color: var(--accent);
  color: var(--primary-light);
  background: var(--primary-bg);
}
.region-tab.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.region-tab.active[data-region="domestic"] {
  background: #E53E3E;
  border-color: #E53E3E;
}
.region-tab.active[data-region="international"] {
  background: #2563EB;
  border-color: #2563EB;
}

.region-icon {
  font-size: 1.1rem;
}

/* Region Block Titles */
.news-region-block {
  margin-bottom: 32px;
}

.region-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}

.region-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  font-size: 1rem;
  margin-right: 4px;
}
.region-badge.domestic {
  background: #FEE2E2;
}
.region-badge.international {
  background: #DBEAFE;
}

.region-title-domestic {
  color: #E53E3E;
}
.region-title-international {
  color: #2563EB;
}

/* Region tags on cards */
.tag-region {
  font-weight: 600;
}
.tag-region-domestic {
  background: #FEE2E2;
  color: #DC2626;
}
.tag-region-international {
  background: #DBEAFE;
  color: #2563EB;
}

/* Search Box */
.search-box {
  position: relative;
  max-width: 500px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 10px 40px 10px 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text);
  background: var(--white);
  outline: none;
  transition: var(--transition);
}
.search-input::placeholder {
  color: var(--text-muted);
  font-size: 0.85rem;
}
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.search-clear {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  border: none;
  background: var(--border);
  color: var(--text-muted);
  border-radius: 50%;
  font-size: 0.7rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.search-clear:hover {
  background: var(--text-muted);
  color: var(--white);
}

.filter-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.tab {
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.tab:hover {
  border-color: var(--accent);
  color: var(--primary-light);
}
.tab.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.filter-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.select-filter {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: var(--white);
  cursor: pointer;
  outline: none;
}
.select-filter:focus { border-color: var(--accent); }

.btn-expand-all {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--white);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.btn-expand-all:hover {
  border-color: var(--accent);
  color: var(--primary-light);
}

/* -- News Section -- */
.news-section {
  padding-bottom: 48px;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.news-all-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.news-all-header .section-title {
  margin-bottom: 0;
}

.news-count {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-high { background: var(--high); }
.dot-medium { background: var(--medium); }
.dot-low { background: var(--low); }

.news-highlight {
  margin-bottom: 32px;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* -- News Card -- */
.news-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--low);
  transition: var(--transition);
  animation: fadeInUp 0.4s ease both;
}
.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.news-card.importance-high {
  border-left-color: var(--high);
  background: var(--high-bg);
}
.news-card.importance-medium {
  border-left-color: var(--medium);
  background: var(--medium-bg);
}
.news-card.importance-low {
  border-left-color: var(--low);
}

.card-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.72rem;
  font-weight: 600;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1.6;
}

.importance-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}
.importance-dot.high { background: var(--high); }
.importance-dot.medium { background: var(--medium); }
.importance-dot.low { background: var(--low); }

.card-title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
  flex: 1;
}
.card-title a {
  color: var(--text);
  transition: var(--transition);
}
.card-title a:hover {
  color: var(--primary-light);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.card-source {
  font-weight: 600;
  color: var(--text-secondary);
}

.card-time {
  color: var(--text-muted);
}

.card-summary {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 12px;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.card-summary.collapsed {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.72rem;
  font-weight: 500;
  background: var(--primary-bg);
  color: var(--primary-light);
}

.tag-category {
  background: #EDE9FE;
  color: #6366F1;
}
.tag-category.clinical { background: #D1FAE5; color: #059669; }
.tag-category.corporate { background: #FEF3C7; color: #B45309; }
.tag-category.market { background: #FCE7F3; color: #DB2777; }

.tag-importance {
  font-weight: 600;
}
.tag-importance-high {
  background: #FEE2E2;
  color: #DC2626;
}
.tag-importance-medium {
  background: #FEF3C7;
  color: #B45309;
}

.card-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.btn-toggle {
  background: none;
  border: none;
  font-size: 0.8rem;
  color: var(--accent);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
  padding: 4px 0;
}
.btn-toggle:hover { color: var(--primary); }

.btn-read {
  font-size: 0.8rem;
  color: var(--primary-light);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.btn-read:hover { color: var(--primary); }
.btn-read::after { content: " →"; }

/* Search Highlight */
mark.search-highlight {
  background: #FEFCBF;
  color: var(--text);
  padding: 1px 2px;
  border-radius: 2px;
}

/* -- Empty & Loading & Error States -- */
.empty-state,
.error-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-icon,
.error-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-title,
.error-title { font-size: 1.1rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.empty-subtitle,
.error-msg { font-size: 0.9rem; color: var(--text-muted); }

.error-state {
  color: var(--high);
}

.loading {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 12px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* -- Footer -- */
.footer {
  background: var(--primary);
  color: rgba(255,255,255,0.8);
  margin-top: auto;
  padding: 40px 0 24px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-brand {
  flex: 1;
  min-width: 200px;
}
.footer-brand .logo-icon { font-size: 1.3rem; }
.footer-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-left: 6px;
}
.footer-desc {
  font-size: 0.85rem;
  margin-top: 8px;
  opacity: 0.7;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  padding: 3px 0;
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  width: 100%;
  padding-top: 24px;
  margin-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 0.8rem;
  opacity: 0.6;
}

/* -- Archive Page -- */
.archive-section {
  padding: 32px 0 48px;
}

.archive-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.archive-desc {
  color: var(--text-muted);
  margin-bottom: 24px;
}

.archive-date-input {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 24px;
}

.archive-date-input input[type="date"] {
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  background: var(--white);
  outline: none;
}
.archive-date-input input[type="date"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  padding: 10px 24px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}

.archive-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.archive-item {
  background: var(--white);
  padding: 16px 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  color: var(--text);
}
.archive-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  color: var(--primary-light);
}
.archive-item-date { font-weight: 600; color: var(--primary); }
.archive-item-stats {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}
.archive-item-total {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
}
.archive-item-breakdown {
  font-size: 0.72rem;
  color: var(--text-muted);
}
.archive-item-count { font-size: 0.85rem; color: var(--text-muted); }

/* -- About & Subscribe Pages -- */
.page-section {
  padding: 40px 0 60px;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.page-subtitle {
  color: var(--text-muted);
  margin-bottom: 32px;
  font-size: 0.95rem;
}

.content-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.content-card h3 {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.content-card p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.content-card ul {
  list-style: none;
  padding: 0;
}
.content-card ul li {
  padding: 6px 0;
  color: var(--text-secondary);
  position: relative;
  padding-left: 20px;
}
.content-card ul li::before {
  content: "\2022";
  color: var(--accent);
  font-size: 1.2em;
  position: absolute;
  left: 0;
  top: 5px;
}

.source-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}
.source-table th,
.source-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.source-table th {
  background: var(--primary-bg);
  color: var(--primary);
  font-weight: 600;
}

/* Subscribe Form */
.subscribe-form {
  max-width: 480px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.form-group input[type="email"],
.form-group input[type="text"] {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}
.form-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.form-group .checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 8px;
}
.form-group .checkbox-group label {
  font-weight: 400;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.btn-submit {
  background: var(--primary);
  color: var(--white);
  padding: 12px 32px;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-submit:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* -- Responsive -- */
@media (max-width: 768px) {
  .header-inner { gap: 12px; }

  .nav { display: none; }
  .header-actions .btn-subscribe,
  .header-actions .date-nav { display: none; }
  .header-actions { gap: 8px; }
  .btn-refresh { padding: 6px 12px; font-size: 0.8rem; }

  .mobile-menu-btn { display: flex; margin-left: auto; }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-total {
    grid-column: 1 / -1;
  }

  .filter-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .filter-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .search-box {
    max-width: 100%;
  }

  .tabs {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
  }
  .tab { flex-shrink: 0; }

  .region-tabs {
    width: 100%;
  }
  .region-tab {
    flex: 1;
    justify-content: center;
    padding: 8px 12px;
    font-size: 0.85rem;
  }

  .news-card {
    padding: 16px;
  }

  .overview-title { font-size: 1.35rem; }

  .footer-inner { flex-direction: column; gap: 24px; }
  .footer-links { gap: 32px; }

  .region-block-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .card-meta { font-size: 0.75rem; }
  .card-summary { font-size: 0.85rem; }
}

/* ============================================
   暗色模式 (Dark Mode)
   ============================================ */
[data-theme="dark"] {
  --primary: #5b8dee;
  --primary-light: #74a7f7;
  --primary-bg: #1e2a3a;
  --accent: #60a5fa;
  --high: #fc8181;
  --high-bg: #2d1f1f;
  --medium: #f6c05c;
  --medium-bg: #2d2510;
  --low: #718096;
  --low-bg: #1f2738;
  --text: #e2e8f0;
  --text-secondary: #a0aec0;
  --text-muted: #718096;
  --border: #2d3748;
  --bg: #111827;
  --white: #1e2533;
  --shadow: 0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.35), 0 2px 4px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.4), 0 4px 6px rgba(0,0,0,0.3);
}

[data-theme="dark"] .header {
  background: #161d2b;
  border-color: #2d3748;
}
[data-theme="dark"] .news-card,
[data-theme="dark"] .lit-card,
[data-theme="dark"] .lit-trends-card,
[data-theme="dark"] .lit-intro-card {
  background: #1e2533;
}
[data-theme="dark"] .footer {
  background: #0f1623;
}
[data-theme="dark"] .modal-panel {
  background: #1e2533;
  border-color: #2d3748;
}
[data-theme="dark"] .modal-header {
  border-color: #2d3748;
}
[data-theme="dark"] select,
[data-theme="dark"] input[type="date"],
[data-theme="dark"] .lit-search-input {
  background: #1e2533;
  color: var(--text);
  border-color: #2d3748;
}
[data-theme="dark"] .lit-advanced-panel {
  background: #1a2030;
  border-color: #2d3748;
}
[data-theme="dark"] .mesh-tag {
  background: #1a2a3d;
  color: #74a7f7;
  border-color: #2d4a6a;
}
[data-theme="dark"] .mesh-tag:hover {
  background: #234060;
}
[data-theme="dark"] .lit-abstract-body {
  background: #161d2b;
  border-color: #2d3748;
}
[data-theme="dark"] .citation-text {
  background: #161d2b;
  border-color: #2d3748;
  color: #a0aec0;
}
[data-theme="dark"] .page-btn {
  background: #1e2533;
  border-color: #2d3748;
  color: var(--text);
}
[data-theme="dark"] .page-btn.active {
  background: var(--primary);
  color: #fff;
}

/* 暗色模式下主题切换按钮 */
.btn-theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: var(--transition);
  flex-shrink: 0;
}
.btn-theme-toggle:hover {
  background: var(--primary-bg);
  color: var(--primary-light);
}

/* ============================================
   文献检索页 (literature.html)
   ============================================ */

/* Hero 搜索区 */
.lit-hero {
  text-align: center;
  padding: 48px 0 32px;
}
.lit-hero-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}
.lit-hero-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 28px;
}
.lit-search-wrap {
  max-width: 720px;
  margin: 0 auto;
}
.lit-search-box {
  display: flex;
  align-items: center;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: 50px;
  padding: 6px 6px 6px 16px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.lit-search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(59,130,246,0.12);
}
.lit-search-box .search-icon {
  font-size: 1.1rem;
  margin-right: 8px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.lit-search-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1rem;
  background: transparent;
  color: var(--text);
  padding: 6px 8px 6px 0;
}
.lit-search-input::placeholder { color: var(--text-muted); }
.lit-search-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 10px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}
.lit-search-btn:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}

/* 高级筛选 */
.lit-advanced-toggle {
  text-align: right;
  margin-top: 8px;
}
.lit-advanced-panel {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-top: 8px;
  text-align: left;
}
.lit-advanced-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}
.lit-filter-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.lit-date-range {
  display: flex;
  align-items: center;
  gap: 8px;
}
.lit-date-input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  background: var(--bg);
  outline: none;
  min-width: 0;
}
.lit-date-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(59,130,246,0.1);
}
.lit-date-sep { color: var(--text-muted); font-size: 0.85rem; }
.preset-btn-group {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.btn-preset {
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.8rem;
  background: var(--bg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.btn-preset:hover, .btn-preset.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* 热门主题 */
.lit-hot-topics {
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}
.hot-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.hot-tag {
  background: var(--primary-bg);
  color: var(--primary-light);
  border: 1px solid rgba(37,99,235,0.2);
  border-radius: 50px;
  padding: 4px 14px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}
.hot-tag:hover {
  background: var(--primary);
  color: #fff;
}

/* 结果统计栏 */
.lit-results-section { padding: 0 0 48px; }
.lit-results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.lit-results-count {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* 文献卡片 */
.lit-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.lit-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.lit-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.lit-card-pmid {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: monospace;
}
.lit-card-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: auto;
}
.lit-badge {
  font-size: 0.72rem;
  background: var(--primary-bg);
  color: var(--primary-light);
  border-radius: 50px;
  padding: 2px 9px;
  font-weight: 500;
}
.lit-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.5;
  cursor: pointer;
  margin-bottom: 6px;
}
.lit-card-title:hover { color: var(--primary-light); text-decoration: underline; }
.lit-card-authors {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 2px;
}
.lit-card-journal {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 10px;
}
.lit-card-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 0;
}
.lit-abstract-body {
  margin-top: 12px;
  padding: 14px 16px;
  background: var(--bg);
  border-radius: var(--radius);
  border-left: 3px solid var(--accent);
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  animation: fadeIn 0.2s ease;
}
.lit-abstract-loading { color: var(--text-muted); font-style: italic; }

/* 分页 */
.lit-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.page-btn {
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
}
.page-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--primary-light);
}
.page-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  font-weight: 600;
}
.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.page-ellipsis {
  color: var(--text-muted);
  padding: 0 4px;
  line-height: 36px;
}

/* 趋势图 */
.lit-trends-section { padding: 0 0 40px; }
.lit-trends-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
}
.lit-trends-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.lit-trends-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.lit-trends-badge {
  font-size: 0.75rem;
  background: var(--primary-bg);
  color: var(--primary-light);
  border-radius: 50px;
  padding: 2px 10px;
}
.lit-trends-chart-wrap { position: relative; }

/* 介绍卡片 */
.lit-intro { padding: 24px 0 48px; }
.lit-intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}
.lit-intro-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: var(--shadow);
  text-align: center;
}
.lit-intro-icon { font-size: 2rem; margin-bottom: 12px; }
.lit-intro-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}
.lit-intro-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 文献详情弹窗 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px 16px;
  overflow-y: auto;
  backdrop-filter: blur(2px);
}
.modal-panel {
  background: var(--white);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 780px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.2s ease;
  position: relative;
}
.modal-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px 24px 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--white);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  z-index: 1;
}
.modal-title {
  flex: 1;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
}
.modal-close {
  flex-shrink: 0;
  background: none;
  border: none;
  font-size: 1.2rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius);
  transition: var(--transition);
}
.modal-close:hover {
  background: var(--border);
  color: var(--text);
}
.modal-body {
  padding: 20px 24px 28px;
  overflow-y: auto;
  max-height: calc(90vh - 80px);
}
.modal-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.modal-journal {
  font-weight: 600;
  color: var(--primary-light);
  font-size: 0.9rem;
}
.modal-date, .modal-vol {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.modal-authors {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}
.modal-author {
  cursor: default;
}
.modal-author[title]:hover {
  text-decoration: underline dotted;
  color: var(--primary-light);
}
.modal-section { margin-top: 20px; }
.modal-section-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.modal-abstract {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.8;
}
.modal-abstract p { margin-bottom: 10px; }
.modal-abstract p:last-child { margin-bottom: 0; }
.modal-mesh {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.mesh-tag {
  background: var(--primary-bg);
  color: var(--primary-light);
  border: 1px solid rgba(37,99,235,0.2);
  border-radius: 50px;
  padding: 3px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}
.mesh-tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.modal-ids { display: flex; flex-direction: column; gap: 8px; }
.modal-id-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
}
.modal-id-label {
  font-weight: 600;
  color: var(--text-muted);
  min-width: 70px;
}
.modal-citation-section {}
.modal-citation-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 10px 12px;
}
.citation-format-label {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--primary-bg);
  color: var(--primary-light);
  border-radius: 4px;
  padding: 2px 7px;
  margin-top: 2px;
}
.citation-text {
  flex: 1;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  word-break: break-all;
}
.btn-copy-cite {
  flex-shrink: 0;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.8rem;
  background: var(--white);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.btn-copy-cite:hover, .btn-copy-cite.copied {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* 通用辅助 */
.btn-link {
  background: none;
  border: none;
  color: var(--primary-light);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0;
  transition: var(--transition);
}
.btn-link:hover { color: var(--accent); text-decoration: underline; }
.text-muted { color: var(--text-muted); font-style: italic; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 文献页响应式 */
@media (max-width: 768px) {
  .lit-hero { padding: 32px 0 24px; }
  .lit-hero-title { font-size: 1.5rem; }
  .lit-search-box { border-radius: var(--radius-lg); padding: 6px 6px 6px 12px; }
  .lit-search-btn { padding: 9px 16px; font-size: 0.875rem; }
  .lit-advanced-grid { grid-template-columns: 1fr; }
  .modal-panel { max-width: 100%; margin: 0; border-radius: var(--radius) var(--radius) 0 0; }
  .modal-overlay { padding: 0; align-items: flex-end; }
  .lit-intro-grid { grid-template-columns: 1fr 1fr; }
  .lit-results-header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .header-actions .btn-theme-toggle { display: flex; }
}

/* -- TLDR & 引用数 & OA -- */
.lit-tldr {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 8px 0 4px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.tldr-label {
  flex-shrink: 0;
  font-size: 0.68rem;
  font-weight: 700;
  background: var(--medium-bg);
  color: var(--medium);
  border-radius: 4px;
  padding: 2px 6px;
  margin-top: 2px;
  letter-spacing: 0.5px;
}
.modal-tldr {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: var(--medium-bg);
  border-left: 3px solid var(--medium);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin: 12px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.lit-cite-count {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-left: 4px;
}
.lit-oa-badge {
  font-size: 0.68rem;
  font-weight: 600;
  background: #d1fae5;
  color: #065f46;
  border-radius: 50px;
  padding: 2px 8px;
}
[data-theme="dark"] .lit-oa-badge {
  background: #064e3b;
  color: #6ee7b7;
}
.lit-badge-field {
  background: #f0fdf4;
  color: #166534;
  border-radius: 50px;
}
[data-theme="dark"] .lit-badge-field {
  background: #14532d;
  color: #86efac;
}

/* -- 参考文献 -- */
.modal-refs { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.modal-ref-item {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: baseline;
  padding: 6px 10px;
  background: var(--bg);
  border-radius: var(--radius);
}
.ref-year {
  flex-shrink: 0;
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--border);
  border-radius: 4px;
  padding: 1px 6px;
}
.ref-authors { color: var(--text-muted); font-size: 0.8rem; }
.ref-title { color: var(--text); }