/* 关于我们页样式 */
.page-banner {
  position: relative;
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: var(--white);
  text-align: center;
  overflow: hidden;
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.2;
}

.page-banner-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.page-banner-subtitle {
  font-size: 20px;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
  opacity: 0.95;
}

.page-banner .breadcrumb {
  justify-content: center;
  position: relative;
  z-index: 1;
}

/* 公司宣传视频 */
.company-video-section {
  padding: 100px 0;
  background: var(--white);
}

.video-container {
  max-width: 1000px;
  margin: 0 auto;
}

.video-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.company-video {
  width: 100%;
  display: block;
}

/* Plyr视频播放器自定义样式 */
.video-wrapper .plyr {
  --plyr-color-main: var(--primary-color);
  border-radius: var(--radius-lg);
}

.video-info {
  background: var(--bg-color);
  border-radius: var(--radius-lg);
  padding: 30px;
}

.video-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.video-stat-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.video-stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.video-stat-item i {
  font-size: 32px;
  color: var(--primary-color);
}

.stat-content {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* 公司简介 */
.company-intro {
  padding: 100px 0;
  background: var(--bg-color);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.intro-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.intro-content h2 {
  text-align: left;
  margin-bottom: 30px;
}

.intro-content p {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-dark);
  margin-bottom: 20px;
}

/* 时间轴 */
.timeline-section {
  padding: 88px 0;
  background: linear-gradient(180deg, var(--white) 0%, var(--bg-color) 100%);
}

.timeline-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 32px;
  align-items: start;
  max-width: 1180px;
  margin: 0 auto;
}

.timeline-visual {
  position: relative;
  position: sticky;
  top: calc(50vh + 40px);
  transform: translateY(-50%);
  overflow: hidden;
  color: var(--white);
  background: #173e70;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.timeline-visual img {
  width: 100%;
  height: 230px;
  object-fit: cover;
}

.timeline-visual-card {
  padding: 24px 24px 20px;
  background: linear-gradient(180deg, rgba(27,78,143,0.94) 0%, rgba(6,102,93,0.96) 100%);
}

.timeline-visual-range {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  margin-bottom: 14px;
  color: #eaf4ff;
  font-size: 13px;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: var(--radius-full);
}

.timeline-visual-card strong {
  display: block;
  margin-bottom: 12px;
  font-size: 24px;
  line-height: 1.35;
  font-weight: 700;
}

.timeline-visual-card p {
  margin: 0;
  color: rgba(255,255,255,0.86);
  font-size: 14px;
  line-height: 1.8;
}

.timeline-visual-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 0 24px 24px;
  background: rgba(6,102,93,0.96);
}

.timeline-visual-points span {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 600;
  color: #f5fbff;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.08);
}

.timeline {
  position: relative;
  max-width: none;
  margin: 0;
  padding: 4px 0 4px 34px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  transform: none;
  box-shadow: none;
}

.timeline-item {
  position: relative;
  margin-bottom: 18px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-item:nth-child(odd) .timeline-content,
.timeline-item:nth-child(even) .timeline-content {
  text-align: left;
  padding: 22px 24px;
  margin: 0;
}

.timeline-marker {
  position: absolute;
  left: -24px;
  top: 30px;
  width: 16px;
  height: 16px;
  background: var(--primary-color);
  border: 3px solid var(--white);
  border-radius: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 0 4px rgba(27,78,143,0.14);
  z-index: 2;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.timeline-item:hover .timeline-marker {
  transform: translateX(-50%) scale(1.18);
  box-shadow: 0 0 0 7px rgba(27,78,143,0.18);
}

.timeline-marker::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: var(--white);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.timeline-year {
  display: inline-block;
  padding: 5px 12px;
  background: rgba(27,78,143,0.08);
  color: var(--primary-color);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
  transition: background var(--transition-base), color var(--transition-base);
}

.timeline-item:hover .timeline-year {
  background: var(--primary-color);
  color: var(--white);
}

.timeline-content {
  background: var(--white);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 8px rgba(27,78,143,0.08);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  position: relative;
}

.timeline-content::before {
  content: none;
}

.timeline-item:hover .timeline-content {
  transform: translateY(-2px);
  border-color: rgba(27,78,143,0.28);
  box-shadow: 0 4px 8px rgba(27,78,143,0.12);
}

.timeline-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.75;
  margin: 0;
}

/* 隔离荣誉页时间轴样式，避免 about 页发展历程右侧概览被挤乱 */
#timeline .timeline-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 32px;
  align-items: start;
  max-width: 1180px;
  margin: 0 auto;
}

#timeline .timeline-visual {
  grid-column: 2;
  grid-row: 1;
  position: sticky;
  top: calc(50vh + 40px);
  transform: translateY(-50%);
  overflow: hidden;
  color: var(--white);
  background: #173e70;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

#timeline .timeline {
  grid-column: 1;
  grid-row: 1;
  position: relative;
  display: block;
  max-width: none;
  width: auto;
  margin: 0;
  padding: 4px 0 4px 34px;
}

#timeline .timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  transform: none;
  box-shadow: none;
}

#timeline .timeline-item,
#timeline .timeline-item:nth-child(odd),
#timeline .timeline-item:nth-child(even) {
  position: relative;
  display: block;
  margin-bottom: 18px;
}

#timeline .timeline-item:last-child {
  margin-bottom: 0;
}

#timeline .timeline-content,
#timeline .timeline-item:nth-child(odd) .timeline-content,
#timeline .timeline-item:nth-child(even) .timeline-content {
  width: auto;
  margin: 0;
  padding: 22px 24px;
  text-align: left;
  background: var(--white);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 8px rgba(27,78,143,0.08);
}

#timeline .timeline-year {
  display: inline-block;
  padding: 5px 12px;
  margin-bottom: 10px;
  color: var(--primary-color);
  background: rgba(27,78,143,0.08);
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
}

@media (max-width: 1023px) {
  #timeline .timeline-layout {
    grid-template-columns: 1fr;
  }

  #timeline .timeline-visual {
    grid-column: auto;
    grid-row: auto;
    position: relative;
    top: auto;
    transform: none;
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
  }

  #timeline .timeline {
    grid-column: auto;
    grid-row: auto;
  }

  #timeline .timeline-visual img {
    height: 100%;
    min-height: 260px;
  }

  #timeline .timeline-visual-card {
    min-height: 100%;
  }

  #timeline .timeline-visual-points {
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  #timeline .timeline-layout {
    gap: 24px;
  }

  #timeline .timeline-visual {
    display: block;
    border-radius: var(--radius-md);
  }

  #timeline .timeline-visual img {
    height: 180px;
    min-height: 0;
  }

  #timeline .timeline-visual-card {
    padding: 20px;
  }

  #timeline .timeline-visual-card strong {
    font-size: 20px;
  }

  #timeline .timeline-visual-points {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 0 20px 20px;
  }

  #timeline .timeline {
    padding: 0 0 0 40px;
  }

  #timeline .timeline::before {
    left: 20px;
  }

  #timeline .timeline-marker {
    left: -20px;
  }

  #timeline .timeline-item,
  #timeline .timeline-item:nth-child(odd),
  #timeline .timeline-item:nth-child(even) {
    margin-bottom: 16px;
  }

  #timeline .timeline-content,
  #timeline .timeline-item:nth-child(odd) .timeline-content,
  #timeline .timeline-item:nth-child(even) .timeline-content {
    width: auto;
    margin-left: 20px !important;
    margin-right: 0 !important;
    padding: 18px;
  }
}

/* 团队 */
.team-section {
  padding: 100px 0;
  background: var(--white);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.team-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.team-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.team-image {
  position: relative;
  width: 100%;
  height: 280px;
  overflow: hidden;
}

.team-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.team-card:hover .team-image img {
  transform: scale(1.1);
}

.team-info {
  padding: 24px;
  text-align: center;
}

.team-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.team-position {
  font-size: 14px;
  color: var(--primary-color);
  margin-bottom: 12px;
  font-weight: 500;
}

.team-bio {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* 产品师资 */
.teachers-section {
  padding: 100px 0;
  background: var(--bg-color);
}

/* 搜索框 */
.teacher-search-wrapper {
  max-width: 600px;
  margin: 0 auto 30px;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--white);
  border: 2px solid var(--bg-color);
  border-radius: var(--radius-full);
  padding: 12px 20px;
  transition: all var(--transition-base);
}

.search-box:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(27,78,143,0.1);
}

.search-box i.fa-search {
  color: var(--text-muted);
  margin-right: 12px;
  font-size: 16px;
}

.search-box input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 15px;
  color: var(--text-dark);
  background: transparent;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.btn-clear-search {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 8px;
  margin-left: 8px;
  border-radius: 50%;
  transition: all var(--transition-base);
}

.btn-clear-search:hover {
  background: var(--bg-color);
  color: var(--text-dark);
}

/* 筛选按钮 */
.teacher-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 50px;
}

.filter-btn {
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
  background: var(--white);
  border: 2px solid var(--bg-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.filter-btn.active {
  background: var(--gradient-primary);
  color: var(--white);
  border-color: transparent;
  box-shadow: var(--shadow-md);
}

/* 老师卡片网格 */
.teachers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.teacher-card {
  background: var(--white);
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 2px solid transparent;
  opacity: 1;
  transform: translateY(0);
}

.teacher-card.hidden-teacher {
  display: none;
}

.teacher-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

/* 老师头部 - 简洁版 */
.teacher-header {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--bg-color);
}

.teacher-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
  line-height: 1.2;
}

.teacher-meta {
  font-size: 15px;
  color: var(--text-light);
  margin: 0;
  line-height: 1.6;
}

.teacher-meta .separator {
  margin: 0 8px;
  color: var(--text-muted);
  font-weight: 300;
}

/* 成就标签 */
.teacher-achievements {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.achievement-tag {
  display: inline-block;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--white);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* 授课科目 */
.teacher-courses {
  padding-top: 20px;
  border-top: 1px solid var(--bg-color);
}

.teacher-courses strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.teacher-courses strong i {
  margin-right: 6px;
  color: var(--primary-color);
}

.teacher-courses p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  margin: 0;
}

/* 加载更多按钮 */
.load-more-wrapper {
  text-align: center;
  margin-top: 40px;
}

.btn-load-more {
  padding: 14px 50px;
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.btn-load-more:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-load-more i {
  margin-left: 8px;
  transition: transform var(--transition-base);
}

.btn-load-more:hover i {
  transform: translateY(3px);
}

/* 荣誉资质 */
.honors-section {
  padding: 100px 0;
  background: var(--white);
}

.honors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.honor-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.honor-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.honors-section .honor-image {
  position: relative;
  width: 100%;
  padding-top: 75%;
  overflow: hidden;
  background: var(--bg-color);
}

.honors-section .honor-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 20px;
  transition: transform var(--transition-base);
}

.honors-section .honor-item:hover .honor-image img {
  transform: scale(1.05);
}

.honors-section .honor-content {
  padding: 20px;
  text-align: center;
  background: var(--white);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.honors-section .honor-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.5;
  margin-bottom: 8px;
}

.honors-section .honor-date {
  font-size: 13px;
  color: var(--text-muted);
}

.honors-section .honor-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 20px;
  box-shadow: var(--shadow-md);
  z-index: 2;
}

/* 底部咨询卡片 */
.cta-section {
  padding: 36px 0 88px;
  background: transparent;
}

.about-cta-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 32px;
  max-width: 1040px;
  margin: 0 auto;
  padding: 34px 40px;
  border: 1px solid rgba(226, 232, 240, 0.95);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(27, 78, 143, 0.08) 0%, rgba(11, 127, 115, 0.06) 100%),
    var(--white);
  box-shadow: 0 18px 42px rgba(27, 78, 143, 0.12);
}

.about-cta-copy {
  min-width: 0;
}

.about-cta-kicker {
  display: inline-flex;
  align-items: center;
  margin-bottom: 10px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(27, 78, 143, 0.1);
  color: var(--primary-color);
  font-size: 13px;
  font-weight: 700;
}

.about-cta-card .cta-title {
  margin: 0 0 10px;
  color: var(--text-dark);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.35;
  text-align: left;
}

.about-cta-card .cta-subtitle {
  max-width: 620px;
  margin: 0;
  color: var(--text-light);
  font-size: 16px;
  line-height: 1.75;
  text-align: left;
}

.about-cta-card .cta-buttons {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  flex-wrap: wrap;
}

.about-cta-card .cta-buttons .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 140px;
}

.about-cta-card .cta-buttons .btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  border-color: transparent;
}

.about-cta-card .cta-buttons .btn-outline {
  background: var(--white);
  color: var(--primary-color);
  border-color: rgba(27, 78, 143, 0.28);
}

.about-cta-card .cta-buttons .btn-outline:hover {
  background: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
}

/* 响应式 */
@media (max-width: 1023px) {
  .intro-grid { grid-template-columns: 1fr; }
  .timeline-layout { grid-template-columns: 1fr; }
  .timeline-visual {
    position: relative;
    top: auto;
    transform: none;
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
  }
  .timeline-visual img {
    height: 100%;
    min-height: 260px;
  }
  .timeline-visual-card {
    min-height: 100%;
  }
  .timeline-visual-points {
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .honors-grid { grid-template-columns: repeat(2, 1fr); }
  .video-stats { grid-template-columns: 1fr; gap: 16px; }
  .about-cta-card {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .about-cta-card .cta-buttons {
    justify-content: flex-start;
  }
}

@media (max-width: 767px) {
  .page-banner { padding: 100px 0 50px; }
  .page-banner-title { font-size: 32px; }
  .company-video-section, .company-intro, .timeline-section, .team-section, .honors-section { padding: 60px 0; }
  .team-grid, .honors-grid { grid-template-columns: 1fr; }
  .video-stats { gap: 12px; }
  .video-stat-item { padding: 16px; }
  .video-stat-item i { font-size: 24px; }
  .stat-number { font-size: 20px; }
  
  .timeline-layout { gap: 24px; }
  .timeline-visual {
    display: block;
    border-radius: var(--radius-md);
  }
  .timeline-visual img {
    height: 180px;
    min-height: 0;
  }
  .timeline-visual-card { padding: 20px; }
  .timeline-visual-card strong { font-size: 20px; }
  .timeline-visual-points {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 0 20px 20px;
  }
  .timeline { padding: 0 0 0 28px; }
  .timeline::before { left: 8px; }
  .timeline-item { margin-bottom: 16px; }
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content { padding: 18px; }
  .timeline-marker {
    left: -20px;
    top: 26px;
    width: 14px;
    height: 14px;
  }
  .timeline-item:hover .timeline-marker { transform: translateX(-50%) scale(1.12); }
  .timeline-content h3 {
    font-size: 18px;
  }
  
  .timeline-content p {
    font-size: 14px;
  }
  .cta-section {
    padding: 24px 0 62px;
  }
  .about-cta-card {
    padding: 24px 20px;
    border-radius: var(--radius-md);
  }
  .about-cta-card .cta-title {
    font-size: 24px;
  }
  .about-cta-card .cta-subtitle {
    font-size: 14px;
  }
  .about-cta-card .cta-buttons {
    width: 100%;
  }
  .about-cta-card .cta-buttons .btn {
    width: 100%;
  }
}



/* 公司简介数据展示 */
.intro-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 30px;
  padding-top: 30px;
  border-top: 2px solid var(--bg-color);
}

.intro-stat-item {
  text-align: center;
  padding: 24px 15px;
  background: linear-gradient(135deg, rgba(27,78,143,0.05) 0%, rgba(11,127,115,0.05) 100%);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  min-height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.intro-stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, rgba(27,78,143,0.08) 0%, rgba(11,127,115,0.08) 100%);
}

.intro-stat-item .stat-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1.2;
  margin-bottom: 10px;
  white-space: nowrap;
}

.intro-stat-item .stat-label {
  font-size: 14px;
  color: var(--text-dark);
  font-weight: 500;
  white-space: nowrap;
}

/* 公司优势 */
.advantages-section {
  padding: 72px 0 76px;
  background: var(--bg-color);
}

.advantages-section .section-title {
  margin-bottom: 34px;
}

.advantages-culture-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(0, 1.55fr);
  gap: 28px;
  align-items: stretch;
}

.culture-panel {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 30px;
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.culture-label {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 6px 14px;
  margin-bottom: 18px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.94);
  font-size: 13px;
  font-weight: 600;
}

.culture-panel h3 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.42;
  margin: 0 0 12px;
  text-wrap: balance;
}

.culture-panel > p {
  color: rgba(255, 255, 255, 0.86);
  font-size: 15px;
  line-height: 1.76;
  margin: 0 0 24px;
}

.culture-values {
  display: grid;
  gap: 14px;
  margin-top: auto;
}

.culture-value {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.culture-value-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 18px;
}

.culture-value h4 {
  color: var(--white);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 6px;
}

.culture-value p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  line-height: 1.75;
  margin: 0;
}

.advantage-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.advantage-card {
  background: var(--white);
  padding: 18px 20px;
  border: 1px solid rgba(27, 78, 143, 0.08);
  border-radius: var(--radius-md);
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.advantage-card:hover {
  transform: translateY(-4px);
  border-color: rgba(27, 78, 143, 0.18);
  box-shadow: var(--shadow-md);
}

.advantage-icon {
  width: 42px;
  height: 42px;
  background: rgba(27, 78, 143, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary-color);
  transition: all var(--transition-base);
}

.advantage-card:hover .advantage-icon {
  background: var(--primary-color);
  color: var(--white);
}

.advantage-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 0 0 6px;
  line-height: 1.45;
}

.advantage-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.64;
  margin: 0;
}

.advantage-card:last-child {
  grid-column: 1 / -1;
}

/* 响应式优化 */
@media (max-width: 1023px) {
  .intro-stats { grid-template-columns: repeat(2, 1fr); }
  .advantages-culture-layout { grid-template-columns: 1fr; }
  .culture-panel {
    min-height: auto;
    padding: 30px;
  }
  .culture-values {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .teachers-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .advantages-section { padding: 52px 0; }
  .advantages-section .section-title { margin-bottom: 24px; }
  .advantages-section .section-title-sub { font-size: 16px; line-height: 1.7; }
  .advantages-culture-layout { gap: 14px; }
  .culture-panel { padding: 20px; }
  .culture-label { margin-bottom: 14px; }
  .culture-panel h3 { font-size: 21px; line-height: 1.38; }
  .culture-panel > p { font-size: 14px; line-height: 1.68; margin-bottom: 18px; }
  .culture-values { grid-template-columns: 1fr; gap: 8px; }
  .culture-value {
    grid-template-columns: 36px 1fr;
    gap: 10px;
    padding: 12px 0;
  }
  .culture-value-icon {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }
  .culture-value h4 { font-size: 16px; margin-bottom: 4px; }
  .culture-value p { font-size: 13px; line-height: 1.62; }
  .advantage-list { grid-template-columns: 1fr; gap: 10px; }
  .advantage-card {
    grid-template-columns: 36px 1fr;
    gap: 10px;
    padding: 14px;
  }
  .advantage-icon {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }
  .advantage-card h3 { font-size: 16px; margin-bottom: 4px; }
  .advantage-card p { font-size: 13px; line-height: 1.55; }
  
  .intro-stats { 
    grid-template-columns: repeat(2, 1fr); 
    gap: 15px;
  }
  
  .intro-stat-item {
    padding: 20px 10px;
    min-height: 100px;
  }
  
  .intro-stat-item .stat-number { 
    font-size: 28px; 
  }
  
  .intro-stat-item .stat-label { 
    font-size: 13px;
  }

  .teachers-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .teacher-card { padding: 28px 24px; }
  .teacher-name { font-size: 22px; }
  .teacher-meta { font-size: 14px; }
  
  .team-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .intro-stats { 
    grid-template-columns: 1fr; 
  }
  
  .intro-stat-item {
    padding: 24px 20px;
  }
  
  .intro-stat-item .stat-number { 
    font-size: 32px; 
  }
  
  .teacher-filters {
    gap: 8px;
  }
  
  .filter-btn {
    padding: 8px 16px;
    font-size: 13px;
  }
  
  .teachers-grid { grid-template-columns: 1fr; }
  .teacher-card { padding: 24px 20px; }
  .teacher-name { font-size: 20px; }
  .teacher-meta { font-size: 13px; }
  .teacher-meta .separator { margin: 0 6px; }
}