/* 各板块样式 */

/* Hero 首屏 */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  margin-bottom: 20px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.9rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-title {
  font-size: 4.4rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: 18px;
  line-height: 1.08;
  max-width: 10ch;
  text-wrap: balance;
}

.hero-subtitle {
  font-size: 1.7rem;
  font-weight: var(--font-weight-semibold);
  margin-bottom: 14px;
  opacity: 0.96;
}

.hero-description {
  font-size: 1.08rem;
  margin-bottom: 28px;
  opacity: 0.86;
  max-width: 56ch;
  line-height: 1.9;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.86rem;
  font-weight: var(--font-weight-medium);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-primary-btn,
.hero-secondary-btn {
  min-width: 170px;
  padding: 14px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.96rem;
  font-weight: var(--font-weight-semibold);
  transition: transform var(--transition-base) var(--ease-in-out), box-shadow var(--transition-base) var(--ease-in-out), background var(--transition-base) var(--ease-in-out), color var(--transition-base) var(--ease-in-out);
}

.hero-primary-btn {
  background: linear-gradient(135deg, #f3cf79, #c9a961);
  color: var(--primary-dark);
  box-shadow: 0 18px 28px -18px rgba(201, 169, 97, 0.9);
}

.hero-primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 32px -20px rgba(201, 169, 97, 0.95);
}

.hero-secondary-btn {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
}

.hero-secondary-btn:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.14);
}

.hero-panel-intro {
  margin-bottom: 20px;
}

.hero-panel-kicker {
  display: inline-block;
  margin-bottom: 10px;
  color: #f0cd77;
  font-size: 0.82rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-panel-intro p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.96rem;
  line-height: 1.8;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.hero-metric {
  padding: 14px 12px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
  transition: background 0.25s, border-color 0.25s, transform 0.25s;
}

.hero-metric:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.28);
  transform: translateY(-2px);
}

.hero-metric strong {
  display: block;
  margin-bottom: 6px;
  color: #fff;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}

.hero-metric span {
  display: block;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
}

.hero-panel-list {
  display: grid;
  gap: 12px;
}

.hero-list-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: start;
}

.hero-list-item span {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(243, 207, 121, 0.16);
  color: #f3cf79;
  font-weight: var(--font-weight-bold);
}

.hero-list-item p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.92rem;
  line-height: 1.75;
}

/* 导师介绍板块 */
#mentor .container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.mentor-profile {
  position: sticky;
  top: 100px;
}

.mentor-photo {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
}

.mentor-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mentor-info-card {
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.mentor-name {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

.mentor-title {
  font-size: var(--font-size-lg);
  color: var(--accent-orange);
  margin-bottom: var(--spacing-md);
}

.mentor-info-item {
  display: flex;
  align-items: start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-base);
  color: var(--text-medium);
}

.mentor-info-item strong {
  color: var(--text-dark);
  min-width: 80px;
}

.mentor-details {
  background-color: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.mentor-bio {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--text-dark);
  margin-bottom: var(--spacing-xl);
  text-align: justify;
}

.mentor-achievements {
  margin-top: var(--spacing-xl);
}

.mentor-achievements h3 {
  font-size: var(--font-size-xl);
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.mentor-achievements ul {
  list-style: none;
}

.mentor-achievements li {
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  position: relative;
  line-height: 1.8;
}

.mentor-achievements li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent-orange);
  font-weight: bold;
}

/* 团队概况板块 */
#team {
  background-color: var(--bg-light);
}

.team-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-2xl);
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: var(--text-medium);
}

.team-category {
  margin-bottom: var(--spacing-2xl);
  padding: 28px;
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(201, 169, 97, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 247, 251, 0.98));
  border: 1px solid rgba(0, 61, 122, 0.08);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.06);
}

.team-category-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.team-category-eyebrow {
  margin: 0 0 8px;
  color: #8a6a13;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.team-category-brief {
  max-width: 380px;
  margin: 0;
  color: var(--text-medium);
  font-size: var(--font-size-sm);
  line-height: 1.7;
  text-align: right;
}

.team-category-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--primary-color);
  margin: 0;
  padding-left: 0;
  border-left: 0;
}

.team-student-groups {
  display: grid;
  gap: var(--spacing-xl);
}

.team-student-group {
  padding: 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(0, 61, 122, 0.07);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

.team-student-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.team-student-group-title {
  margin: 0;
  font-size: var(--font-size-xl);
  color: var(--primary-color);
  letter-spacing: 0.02em;
}

.team-student-group-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(196, 151, 47, 0.12);
  color: #8a6a13;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-md);
}

.team-member-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base) var(--ease-in-out);
}

.team-member-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.team-member-photo {
  width: 100%;
  aspect-ratio: 2/3;
  overflow: hidden;
  background-color: var(--bg-light);
}

.team-member-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-member-info {
  padding: 8px;
}

.team-member-name-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 2px;
  min-width: 0;
}

.team-member-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--primary-color);
  margin-bottom: 0;
  min-width: 0;
}

.responsibility-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.64rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  flex-shrink: 0;
  box-shadow: 0 10px 20px -16px rgba(15, 23, 42, 0.65);
}

.team-member-position {
  font-size: 0.75rem;
  color: var(--text-medium);
  margin-bottom: 2px;
}

.team-member-email {
  font-size: 0.7rem;
  color: var(--text-medium);
  margin-bottom: 4px;
}

.team-member-bio {
  font-size: 0.7rem;
  color: var(--text-medium);
  line-height: 1.6;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
}

.team-member-homepage {
  margin-bottom: 4px;
}

.team-member-homepage a {
  font-size: 0.68rem;
  color: var(--primary-color);
  font-weight: var(--font-weight-semibold);
}

.team-member-research {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.team-member-research .tag {
  font-size: 0.65rem;
  padding: 2px 6px;
  margin: 0 2px 2px 0;
}

/* 研究方向板块 */
#research {
  background-color: var(--white);
}

.research-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: var(--spacing-2xl);
}

.research-card {
  --research-card-collapsed-height: 212px;
  position: relative;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.985), rgba(244, 248, 253, 0.985));
  border: 1px solid rgba(0, 61, 122, 0.12);
  border-radius: 30px;
  height: var(--research-card-collapsed-height);
  transition: height 0.42s cubic-bezier(0.22, 1, 0.36, 1), border-color var(--transition-base) var(--ease-in-out), box-shadow var(--transition-base) var(--ease-in-out), transform var(--transition-base) var(--ease-in-out);
  overflow: hidden;
  will-change: height;
}

.research-card.is-expanded {
  height: auto;
}

.research-card:hover {
  border-color: var(--accent-gold);
  transform: translateY(-4px);
  box-shadow: 0 26px 44px -30px rgba(0, 61, 122, 0.3);
}

.research-card.is-collapsible {
  cursor: pointer;
}

.research-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 8% 16%, rgba(201, 169, 97, 0.1), transparent 24%),
    linear-gradient(90deg, rgba(0, 61, 122, 0.04), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.32), transparent 42%);
  pointer-events: none;
}

.research-card-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 196px minmax(0, 1fr) 170px;
  gap: 30px;
  align-items: center;
  min-height: calc(var(--research-card-collapsed-height) - 2px);
  padding: 22px 30px;
}

.research-card-header {
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
}

.research-icon {
  width: 164px;
  height: 164px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 36px;
  background: linear-gradient(145deg, rgba(239, 244, 250, 0.96), rgba(225, 234, 244, 0.92));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.96), 0 24px 38px -28px rgba(0, 61, 122, 0.35);
  overflow: hidden;
  flex-shrink: 0;
}

.research-icon-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.08);
}

.research-icon-fallback {
  font-size: 4.6rem;
  line-height: 1;
  color: var(--primary-color);
}

.research-card-content {
  display: flex;
  flex-direction: column;
  min-width: 0;
  justify-content: center;
  transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.32s ease;
}

.research-card-title {
  font-size: 2.15rem;
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
  margin-bottom: 14px;
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-align: left;
}

.research-card-desc {
  font-size: 1.02rem;
  color: #5a6c81;
  line-height: 1.84;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  opacity: 0.92;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
}

.research-tags {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  justify-content: flex-start;
  align-items: center;
  margin: 18px 0 0;
  max-width: 100%;
  min-height: 38px;
  max-height: 38px;
  overflow: hidden;
  opacity: 0.78;
  transform: translateY(12px);
  transition: opacity 0.34s ease 0.03s, transform 0.46s cubic-bezier(0.22, 1, 0.36, 1) 0.03s, max-height 0.42s cubic-bezier(0.22, 1, 0.36, 1);
  mask-image: linear-gradient(90deg, #000 0%, #000 82%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, #000 0%, #000 82%, transparent 100%);
}

.research-tags .tag {
  margin: 0;
  padding: 8px 14px;
  font-size: 0.76rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.2;
  border-radius: 999px;
  background: linear-gradient(135deg, #edf3f9, #f7fafc);
  border: 1px solid rgba(0, 61, 122, 0.08);
  color: #4b6785;
  white-space: nowrap;
}

.research-tags.is-empty {
  max-height: none;
  min-height: 0;
  mask-image: none;
  -webkit-mask-image: none;
}

.research-card-empty {
  color: #98a8b8;
  font-size: 0.84rem;
}

.research-card.is-expanded .research-card-desc {
  display: block;
  -webkit-line-clamp: unset;
  line-clamp: unset;
  overflow: visible;
  opacity: 1;
  transform: translateY(0);
}

.research-card.is-expanded .research-tags {
  flex-wrap: wrap;
  max-height: none;
  min-height: 0;
  overflow: visible;
  opacity: 1;
  transform: translateY(0);
  mask-image: none;
  -webkit-mask-image: none;
}

.research-card.is-expanded .research-card-content {
  transform: translateY(0);
}

.research-card-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: stretch;
  justify-content: center;
  align-self: center;
}

.research-card-button {
  width: 100%;
  min-width: 0;
  padding: 14px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: var(--font-weight-semibold);
  transition: transform var(--transition-base) var(--ease-in-out), box-shadow var(--transition-base) var(--ease-in-out), background var(--transition-base) var(--ease-in-out);
}

.research-card-button {
  background: linear-gradient(135deg, #0c4d90, #003d7a);
  color: #fff;
  box-shadow: 0 18px 30px -20px rgba(0, 61, 122, 0.78);
}

.research-card-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 32px -20px rgba(0, 61, 122, 0.9);
  background: linear-gradient(135deg, #0f5ba9, #00478f);
}

.research-card-button-arrow {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  font-size: 1rem;
}

/* 试验平台板块 */
#lab {
  background-color: var(--bg-light);
}

.lab-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.lab-image-gallery,
.lab-equipment-showcase {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

.lab-image-gallery {
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.06);
}

.lab-equipment-showcase {
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.06);
  background:
    radial-gradient(circle at top right, rgba(201, 169, 97, 0.1), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 247, 251, 0.98));
}

.gallery-header,
.showcase-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--bg-light);
}

.gallery-header h3,
.showcase-title-row h3,
.showcase-header h3 {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-color);
}

.lab-carousel {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
}

.lab-carousel .carousel {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.lab-carousel .carousel-inner {
  flex: 1;
  height: 0;
  padding-bottom: 66.66%;
  /* 3:2 aspect ratio */
  min-height: 280px;
}

/* 试验室图片画廊 - 一次显示4张 */

.gallery-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.gallery-nav-btn {
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--primary-color);
  background: transparent;
  color: var(--primary-color);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.gallery-nav-btn:hover {
  background: var(--primary-color);
  color: var(--white);
}

.gallery-counter {
  font-size: 0.9rem;
  color: var(--text-medium);
  min-width: 50px;
  text-align: center;
  font-weight: 500;
}

.gallery-counter span:first-child {
  color: var(--primary-color);
  font-weight: 700;
  font-size: 1.1rem;
}

.gallery-viewport {
  overflow: hidden;
  position: relative;
}

.gallery-track {
  display: flex;
  gap: var(--spacing-md);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item {
  flex: 0 0 calc(25% - var(--spacing-md) * 0.75);
  aspect-ratio: 3/2;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s;
  position: relative;
  background: var(--bg-light);
}

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-item .gallery-item-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 10px 12px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: 0.85rem;
  text-align: center;
  border-radius: 0 0 8px 8px;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.gallery-item:hover .gallery-item-caption {
  opacity: 1;
}

.gallery-empty {
  text-align: center;
  padding: 40px;
  color: var(--text-medium);
  font-size: 0.95rem;
}

.gallery-empty-icon {
  font-size: 3rem;
  margin-bottom: 10px;
  opacity: 0.5;
}

.lab-equipment {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}

.lab-equipment .equipment-list {
  flex: 1;
}

/* 试验设备展示台 - 现代风格 */
.lab-equipment-showcase {
  display: flex;
  flex-direction: column;
}

.showcase-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.showcase-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.showcase-nav-btn {
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--primary-color);
  background: transparent;
  color: var(--primary-color);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.showcase-nav-btn:hover {
  background: var(--primary-color);
  color: var(--white);
}

.showcase-counter {
  font-size: 0.9rem;
  color: var(--text-medium);
  min-width: 50px;
  text-align: center;
  font-weight: 500;
}

.showcase-counter span:first-child {
  color: var(--primary-color);
  font-weight: 700;
  font-size: 1.1rem;
}

/* 展示视口 - 自适应高度 */
.showcase-viewport {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f4f9 100%);
  border-radius: var(--radius-md);
  border: 1px solid #eef1f5;
}

.showcase-track {
  display: flex;
  flex-direction: column;
}

.showcase-item {
  display: none;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
  padding: 10px 14px 6px;
}

.showcase-item.active {
  display: grid;
}

.showcase-item-image-wrap {
  position: relative;
  overflow: hidden;
  width: min(78%, 560px);
  margin: 0 auto;
  aspect-ratio: 16 / 8;
  border-radius: 20px;
  background: linear-gradient(135deg, #eef3f9 0%, #dde8f4 100%);
  box-shadow: 0 18px 30px -26px rgba(0, 61, 122, 0.4);
}

.showcase-item-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.showcase-item-image-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-medium);
  font-size: 0.95rem;
}

.showcase-item-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0 2px 4px;
}

.showcase-item-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.showcase-item-name::before {
  content: '';
  width: 4px;
  height: 22px;
  background: linear-gradient(180deg, var(--primary-color), var(--tech-blue));
  border-radius: 2px;
}

.showcase-item-summary {
  font-size: 0.9rem;
  color: var(--text-medium);
  line-height: 1.72;
  word-break: break-word;
  padding: 18px 18px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(0, 61, 122, 0.08);
}

.showcase-item-summary p {
  margin: 0 0 10px 0;
}

.showcase-item-summary ul,
.showcase-item-summary ol {
  margin: 0 0 6px 0;
  padding-left: 16px;
}

.showcase-item-summary li {
  margin-bottom: 3px;
}

.showcase-item-summary strong {
  color: var(--text-dark);
}

.showcase-item-summary h1,
.showcase-item-summary h2,
.showcase-item-summary h3 {
  font-size: 0.8rem;
  color: var(--primary-color);
  margin: 12px 0 6px 0;
  font-weight: 600;
}

/* 底部指示点 */
.showcase-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: var(--spacing-md);
}

.showcase-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #dde2e8;
  cursor: pointer;
  transition: all 0.3s;
}

.showcase-dot.active {
  background: var(--primary-color);
  width: 24px;
  border-radius: 4px;
}

/* 展示台查看详情按钮 - 现代风格 */
.showcase-detail-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 14px;
  background: linear-gradient(135deg, var(--primary-color, #003D7A), var(--tech-blue, #0066CC));
  color: #fff;
  border: none;
  border-radius: 16px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 2px 6px rgba(0, 61, 122, 0.2);
  text-decoration: none;
}

.showcase-detail-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(0, 61, 122, 0.3);
  background: linear-gradient(135deg, var(--tech-blue, #0066CC), var(--primary-color, #003D7A));
}

.showcase-detail-btn svg {
  transition: transform 0.2s;
}

.showcase-detail-btn:hover svg {
  transform: translateX(2px);
}

/* 轮播图片加载失败占位符 */
.carousel-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #e8f0fe 0%, #f0f4f8 50%, #e3ecf7 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-medium);
  gap: var(--spacing-sm);
}

.carousel-placeholder-icon {
  font-size: 3.5rem;
  opacity: 0.6;
}

.carousel-placeholder span:last-child {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--primary-color);
  opacity: 0.7;
}

/* 团队成员翻页器 */
.team-grid.has-team-pager {
  display: block;
}

.team-cards-viewport {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  transition: opacity 0.25s ease;
}

/* 研究方向分页视口 */
.research-grid.has-research-pager {
  display: block;
}

.research-cards-viewport {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  transition: opacity 0.25s ease;
}

.team-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.team-pager-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--primary-color);
  background: transparent;
  color: var(--primary-color);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.team-pager-btn:hover:not(:disabled) {
  background: var(--primary-color);
  color: var(--white);
}

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

.team-pager-info {
  font-size: var(--font-size-sm);
  color: var(--text-medium);
  min-width: 50px;
  text-align: center;
}

.lab-equipment h3 {
  font-size: var(--font-size-xl);
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
}

.equipment-list {
  list-style: none;
}

.equipment-item {
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base) var(--ease-in-out);
  cursor: pointer;
}

.equipment-item:hover {
  background-color: var(--bg-light);
}

.equipment-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

.equipment-specs {
  font-size: var(--font-size-sm);
  color: var(--text-medium);
  line-height: 1.6;
}

.equipment-specs p {
  margin: 0 0 4px 0;
}

.equipment-specs ul,
.equipment-specs ol {
  margin: 0 0 4px 0;
  padding-left: 16px;
}

.equipment-specs li {
  margin-bottom: 2px;
}

.equipment-specs strong {
  color: var(--text-dark);
}

/* 成果项目板块 */
#achievements {
  background-color: var(--white);
}

.achievements-tabs {
  margin-top: var(--spacing-2xl);
}

.achievements-content {
  background-color: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  min-height: 400px;
}

.achievement-list {
  list-style: none;
}

.achievement-item {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base) var(--ease-in-out), transform var(--transition-base) var(--ease-in-out), box-shadow var(--transition-base) var(--ease-in-out);
  border: 1px solid rgba(0, 61, 122, 0.08);
}

.achievement-item:hover {
  background-color: var(--bg-light);
  transform: translateY(-2px);
  box-shadow: 0 18px 34px -28px rgba(0, 61, 122, 0.45);
}

.achievement-item-interactive {
  cursor: pointer;
}

.achievement-item-interactive:focus-visible {
  outline: 3px solid rgba(0, 102, 204, 0.22);
  outline-offset: 2px;
}

.achievement-year {
  flex-shrink: 0;
  width: 80px;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--accent-orange);
}

.achievement-details {
  flex: 1;
}

.achievement-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.achievement-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
  line-height: 1.6;
}

.achievement-header .achievement-title {
  margin-bottom: 0;
}

.achievement-meta {
  font-size: var(--font-size-sm);
  color: var(--text-medium);
  line-height: 1.6;
}

.achievement-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.achievement-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(0, 61, 122, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(239, 246, 255, 0.96));
  color: var(--primary-color);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 12px 24px -20px rgba(0, 61, 122, 0.55);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  flex-shrink: 0;
}

.achievement-action-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(0, 61, 122, 0.24);
  box-shadow: 0 18px 28px -22px rgba(0, 61, 122, 0.45);
}

.achievement-action-btn-primary {
  background: linear-gradient(135deg, rgba(0, 61, 122, 0.96), rgba(0, 102, 204, 0.92));
  border-color: transparent;
  color: #fff;
}

.achievement-action-btn-secondary {
  background: rgba(255, 255, 255, 0.92);
}

.achievement-action-btn-download {
  background: linear-gradient(135deg, rgba(201, 169, 97, 0.16), rgba(255, 255, 255, 0.98));
}

.achievement-status {
  display: inline-block;
  padding: 2px var(--spacing-xs);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
  margin-left: var(--spacing-sm);
}

.status-completed {
  background-color: #d4edda;
  color: #155724;
}

.status-ongoing {
  background-color: #fff3cd;
  color: #856404;
}

.status-published {
  background-color: #d1ecf1;
  color: #0c5460;
}

/* 页脚 */
.footer {
  position: relative;
  background:
    radial-gradient(circle at 12% 18%, rgba(201, 169, 97, 0.22), transparent 28%),
    radial-gradient(circle at 88% 12%, rgba(44, 95, 141, 0.22), transparent 24%),
    linear-gradient(135deg, #07294c 0%, #0a3c71 48%, #082746 100%);
  color: #e8f1fb;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 26%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 120px);
  opacity: 0.45;
  pointer-events: none;
}

.footer .container {
  position: relative;
  z-index: 1;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.footer-section {
  min-height: 100%;
  padding: 28px 26px 24px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.05));
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 24px 42px -32px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(14px);
}

.footer-section h3 {
  font-size: 1.6rem;
  margin-bottom: 18px;
  color: var(--accent-gold);
  line-height: 1.2;
}

.footer-section p,
.footer-section a {
  font-size: 0.98rem;
  line-height: 1.85;
  color: rgba(232, 241, 251, 0.9);
  margin-bottom: 10px;
}

.footer-section a:hover {
  color: #fff3c4;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
}

.footer-links li {
  margin-bottom: 0;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  color: rgba(232, 241, 251, 0.92);
}

.footer-links a::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: linear-gradient(135deg, #f0cd77, #c9a961);
  flex-shrink: 0;
}

.footer-contact-item {
  margin-bottom: 12px;
}

.footer-contact-item p {
  margin-bottom: 0;
}

.footer-contact-item strong {
  color: #fff;
}

.footer-bottom {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(232, 241, 251, 0.68);
}

/* 科研成果分页器 */
.ach-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--bg-light);
}

.ach-pager-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--primary-color);
  background: transparent;
  color: var(--primary-color);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.ach-pager-btn:hover:not(:disabled) {
  background: var(--primary-color);
  color: var(--white);
}

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

.ach-pager-info {
  font-size: var(--font-size-sm);
  color: var(--text-medium);
}