/* 详情页通用样式 */

.detail-page {
  min-height: 100vh;
}

.detail-header {
  background: linear-gradient(135deg, var(--primary-color, #003D7A), var(--tech-blue, #0066CC));
  color: #fff;
  padding: 60px 0 40px;
  margin-bottom: 40px;
}
.detail-header h1 {
  font-size: 2rem;
  margin-bottom: 10px;
}
.detail-header p {
  opacity: 0.85;
  font-size: 1.05rem;
}

.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 20px;
  transition: color 0.2s;
}
.detail-back:hover { color: #fff; }

.detail-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

/* 研究方向详情 */
.research-detail-item {
  margin-bottom: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid #eee;
}
.research-detail-item:last-child { border-bottom: none; }

.research-detail-item h2 {
  font-size: 1.6rem;
  color: var(--primary-color, #003D7A);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.research-detail-item h2 .icon { font-size: 1.8rem; }

.research-detail-image {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: 8px;
  margin: 20px 0;
}

.research-keywords-detail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}
.research-keywords-detail .tag {
  padding: 4px 14px;
  background: #e8f4fd;
  color: var(--primary-color, #003D7A);
  border-radius: 16px;
  font-size: 0.85rem;
}

.research-content-text {
  line-height: 1.9;
  color: #444;
  font-size: 1rem;
}
.research-content-text img {
  max-width: 100%;
  border-radius: 8px;
  margin: 16px 0;
}

.research-results {
  margin-top: 24px;
  padding: 20px;
  background: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid var(--accent-gold, #C4972F);
}
.research-results h3 {
  color: var(--primary-color, #003D7A);
  margin-bottom: 12px;
  font-size: 1.1rem;
}

/* 试验条件详情 */
.lab-detail-section {
  margin-bottom: 50px;
}
.lab-detail-section h2 {
  font-size: 1.5rem;
  color: var(--primary-color, #003D7A);
  margin-bottom: 24px;
  padding-left: 14px;
  border-left: 4px solid var(--accent-gold, #C4972F);
}

/* 设备卡片 - 上下布局+悬停展开 */
.equipment-detail-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.equip-card {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  border: 1px solid #eef1f5;
  transition: box-shadow 0.3s, border-color 0.3s;
}
.equip-card:hover {
  box-shadow: 0 8px 30px rgba(102,126,234,0.1);
  border-color: rgba(102,126,234,0.15);
}
/* 顶部区域 - 固定高度 */
.equip-card-top {
  display: flex;
  height: 180px;
}
.equip-card-img-wrap {
  width: 260px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}
.equip-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.equip-card:hover .equip-card-img-wrap img {
  transform: scale(1.06);
}
.equip-card-img-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 3rem;
}
.equip-card-name-badge {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.75));
  color: #fff;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}
/* 右侧信息区 */
.equip-card-info {
  flex: 1;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.equip-card-info-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: #667eea;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.equip-card-specs {
  font-size: 0.9rem;
  color: #4a5568;
  line-height: 1.8;
}
.equip-card-specs p { margin: 0 0 8px 0; }
.equip-card-specs ul, .equip-card-specs ol {
  margin: 0 0 8px 0;
  padding-left: 20px;
}
.equip-card-specs li { margin-bottom: 4px; }
.equip-card-specs strong { color: #2d3748; font-weight: 600; }
/* 底部展开区 */
.equip-card-bottom {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s ease;
  background: linear-gradient(to bottom, #f8fafc, #f1f4f9);
  border-top: 1px solid #eef1f5;
}
.equip-card:hover .equip-card-bottom,
.equip-card.expanded .equip-card-bottom {
  grid-template-rows: 1fr;
}
.equip-card-bottom-inner {
  overflow: hidden;
  padding: 0 24px;
  transition: padding 0.4s ease;
}
.equip-card:hover .equip-card-bottom-inner,
.equip-card.expanded .equip-card-bottom-inner {
  padding: 20px 24px;
}
.equip-card-bottom-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  font-weight: 600;
  color: #764ba2;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.equip-card-bottom-label::before {
  content: '';
  width: 16px;
  height: 2px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  border-radius: 2px;
}
.equip-card-desc {
  font-size: 0.9rem;
  color: #4a5568;
  line-height: 1.8;
}
.equip-card-desc p { margin: 0 0 10px 0; }
.equip-card-desc ul, .equip-card-desc ol {
  margin: 0 0 10px 0;
  padding-left: 20px;
}
.equip-card-desc li { margin-bottom: 5px; }
.equip-card-desc h1, .equip-card-desc h2, .equip-card-desc h3 {
  font-size: 1rem;
  color: #2d3748;
  margin: 14px 0 8px 0;
  font-weight: 600;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.gallery-item {
  cursor: pointer;
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 4/3;
  transition: transform 0.3s;
}
.gallery-item:hover { transform: scale(1.03); }
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 视频轮播布局 */
.video-carousel-wrapper {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.video-player-layout {
  display: grid;
  grid-template-columns: 3fr 2fr;
  min-height: 360px;
}

.video-player-box {
  background: #000;
  display: flex;
  align-items: center;
}

.video-player-box video {
  width: 100%;
  max-height: 400px;
}

.video-info-panel {
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.video-info-title {
  font-size: 1.3rem;
  color: var(--primary-color, #003D7A);
  margin-bottom: 16px;
}

.video-info-desc {
  color: #555;
  line-height: 1.8;
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex: 1;
}

.video-info-meta {
  font-size: 0.85rem;
  color: #aaa;
  margin-bottom: 16px;
}

.video-nav-btns {
  display: flex;
  gap: 12px;
}

.video-nav-btn {
  padding: 8px 20px;
  border: 2px solid var(--primary-color, #003D7A);
  background: transparent;
  color: var(--primary-color, #003D7A);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s;
}

.video-nav-btn:hover:not(:disabled) {
  background: var(--primary-color, #003D7A);
  color: #fff;
}

.video-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* 项目详情 */
.projects-overview {
  background: #f8f9fa;
  padding: 30px;
  border-radius: 12px;
  margin-bottom: 40px;
  line-height: 1.9;
}
.projects-overview img { max-width: 100%; border-radius: 8px; }

.year-group {
  margin-bottom: 30px;
}
.year-group h3 {
  font-size: 1.3rem;
  color: var(--primary-color, #003D7A);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #e8f4fd;
}

.project-card {
  display: flex;
  gap: 16px;
  padding: 16px;
  margin-bottom: 12px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.project-card .project-no {
  flex-shrink: 0;
  padding: 4px 12px;
  background: #e8f4fd;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--primary-color, #003D7A);
  align-self: flex-start;
}
.project-card h4 { font-size: 1rem; color: #333; margin-bottom: 6px; }
.project-card .meta { font-size: 0.85rem; color: #888; }
.project-card .meta .status-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  margin-left: 8px;
}
.status-tag.ongoing { background: #d4edda; color: #155724; }
.status-tag.completed { background: #e2e3e5; color: #383d41; }

.stats-summary {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  margin: 30px 0;
}
.stat-box {
  flex: 1;
  min-width: 150px;
  text-align: center;
  padding: 24px;
  background: linear-gradient(135deg, var(--primary-color, #003D7A), var(--tech-blue, #0066CC));
  color: #fff;
  border-radius: 12px;
}
.stat-box .number { font-size: 2.5rem; font-weight: bold; }
.stat-box .label { font-size: 0.9rem; opacity: 0.85; margin-top: 4px; }

.projects-outlook {
  margin-top: 40px;
  padding: 30px;
  background: linear-gradient(135deg, #f8f9fa, #e8f4fd);
  border-radius: 12px;
  line-height: 1.9;
}
.projects-outlook h2 {
  color: var(--primary-color, #003D7A);
  margin-bottom: 16px;
}
.projects-outlook img { max-width: 100%; border-radius: 8px; }

/* 科研成果汇总区域 */
.achievements-summary-section {
  margin-top: 50px;
  padding-top: 40px;
  border-top: 2px solid #e8f4fd;
}
.achievements-summary-section h2 {
  font-size: 1.5rem;
  color: var(--primary-color, #003D7A);
  margin-bottom: 24px;
  padding-left: 14px;
  border-left: 4px solid var(--accent-gold, #C4972F);
}

.summary-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.summary-tab {
  padding: 8px 22px;
  border: 2px solid var(--primary-color, #003D7A);
  background: transparent;
  color: var(--primary-color, #003D7A);
  border-radius: 24px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.25s;
}
.summary-tab:hover,
.summary-tab.active {
  background: var(--primary-color, #003D7A);
  color: #fff;
}

/* achievement-list/item/status 在 projects.html 中需要独立定义（不引用sections.css） */
.achievements-summary-section .achievement-list { list-style: none; padding: 0; margin: 0; }
.achievements-summary-section .achievement-item {
  display: flex;
  gap: 20px;
  padding: 16px;
  border-radius: 8px;
  background: #fff;
  margin-bottom: 8px;
  transition: background 0.2s;
}
.achievements-summary-section .achievement-item:hover { background: #f8f9fa; }
.achievements-summary-section .achievement-year {
  flex-shrink: 0;
  width: 48px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-color, #003D7A);
  text-align: center;
  padding-top: 2px;
}
.achievements-summary-section .achievement-title {
  font-size: 0.95rem;
  color: #222;
  margin-bottom: 6px;
  line-height: 1.5;
}
.achievements-summary-section .achievement-meta {
  font-size: 0.82rem;
  color: #888;
  line-height: 1.6;
}
.achievements-summary-section .achievement-status {
  display: inline-block;
  padding: 1px 8px;
  font-size: 0.75rem;
  border-radius: 4px;
  margin-left: 6px;
}
.achievements-summary-section .status-published { background: #d4edda; color: #155724; }
.achievements-summary-section .status-completed { background: #e2e3e5; color: #383d41; }
.achievements-summary-section .status-ongoing   { background: #fff3cd; color: #856404; }

/* 试验条件页分页器 */
.lab-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--bg-light, #f0f4f8);
}

.lab-pager-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1px solid var(--primary-color, #003D7A);
  border-radius: 6px;
  background: #fff;
  color: var(--primary-color, #003D7A);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}

.lab-pager-btn:hover:not(:disabled) {
  background: var(--primary-color, #003D7A);
  color: #fff;
}

.lab-pager-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.lab-pager-info {
  font-size: 0.9rem;
  color: var(--text-medium, #666);
  min-width: 60px;
  text-align: center;
}

/* 响应式 */
@media (max-width: 768px) {
  .detail-header h1 { font-size: 1.5rem; }
  .equipment-detail-grid { gap: 16px; }
  .equip-card-top { flex-direction: column; height: auto; }
  .equip-card-img-wrap { width: 100%; height: 160px; }
  .equip-card-name-badge { position: relative; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); padding: 12px 16px; }
  .equip-card-info { padding: 16px; }
  .equip-card-bottom { display: none; }
  .equip-card.expanded .equip-card-bottom { display: grid; grid-template-rows: 1fr; }
  .equip-card.expanded .equip-card-bottom-inner { padding: 16px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .video-player-layout { grid-template-columns: 1fr; }
  .video-info-panel { padding: 20px; }
  .stats-summary { flex-direction: column; }
  .project-card { flex-direction: column; }
  .achievements-summary-section .achievement-item { flex-direction: column; gap: 8px; }
  .lab-pager-btn { padding: 7px 12px; font-size: 0.82rem; }
}