.company-hero {
  margin-top: 70px;
  height: 500px;
  background: linear-gradient(135deg, #0a3157 0%, #1e6fb4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.company-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("./images/5.jpg") center/cover;
  opacity: 0.3;
  z-index: 1;
}

.company-hero .container {
  position: relative;
  z-index: 2;
}

.company-hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  font-weight: 300;
  animation: fadeInUp 1s ease;
}

.company-hero p {
  font-size: 1.3rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
  animation: fadeInUp 1s ease 0.3s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.company-overview {
  padding: 80px 0;
  background: white;
}

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

.overview-text h2 {
  font-size: 2.5rem;
  color: #0a3157;
  margin-bottom: 30px;
  font-weight: 300;
}

.overview-text p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #667580;
  margin-bottom: 20px;
}

.overview-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.stat-card {
  background: #f5f7fa;
  padding: 25px;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-5px);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: #0a3157;
  margin-bottom: 10px;
}

.stat-label {
  color: #667580;
  font-size: 0.9rem;
}

.overview-image {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.overview-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.overview-image:hover img {
  transform: scale(1.05);
}

.company-history {
  padding: 80px 0;
  background: white;
}

.history-header {
  text-align: center;
  margin-bottom: 60px;
}

.history-header h2 {
  font-size: 2.5rem;
  color: #0a3157;
  margin-bottom: 15px;
  font-weight: 300;
}

.history-header p {
  font-size: 1.1rem;
  color: #667580;
  max-width: 600px;
  margin: 0 auto;
}

.timeline-container {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 0;
}

.timeline-header {
  text-align: center;
  margin-bottom: 60px;
}

.timeline-header h2 {
  font-size: 2.5rem;
  color: #0a3157;
  margin-bottom: 15px;
  font-weight: 300;
}

.timeline-header p {
  font-size: 1.1rem;
  color: #667580;
  max-width: 600px;
  margin: 0 auto;
}

.timeline-years {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 60px;
  flex-wrap: wrap;
  gap: 20px;
}

.timeline-year-btn {
  background: transparent;
  border: none;
  color: #0a3157;
  padding: 15px 25px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.2rem;
  transition: all 0.3s ease;
  position: relative;
  border-bottom: 3px solid transparent;
}

.timeline-year-btn:hover {
  color: #1e6fb4;
  border-bottom-color: #1e6fb4;
}

.timeline-year-btn.active {
  color: #1e6fb4;
  border-bottom-color: #1e6fb4;
  font-weight: 700;
}

.timeline-content-area {
  min-height: 200px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
  padding: 40px;
  margin-top: 40px;
  opacity: 1;
  transform: translateY(0);
  transition: all 0.5s ease;
}

.timeline-content {
  display: none;
}

.timeline-content.active {
  display: block;
}

.timeline-content h3 {
  font-size: 1.8rem;
  color: #0a3157;
  margin-bottom: 20px;
  font-weight: 600;
}

.timeline-content p {
  color: #667580;
  line-height: 1.8;
  font-size: 1.1rem;
  margin-bottom: 15px;
}

.timeline-content .highlight {
  background: linear-gradient(135deg, #0a3157, #1e6fb4);
  color: white;
  padding: 20px;
  border-radius: 8px;
  margin: 20px 0;
}

.company-culture {
  padding: 80px 0;
  background: #f5f7fa;
}

.culture-header {
  text-align: center;
  margin-bottom: 60px;
}

.culture-header h2 {
  font-size: 2.5rem;
  color: #0a3157;
  margin-bottom: 15px;
  font-weight: 300;
}

.culture-header p {
  font-size: 1.1rem;
  color: #667580;
}

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

.culture-card {
  background: white;
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.culture-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.culture-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: block;
}

.culture-card h3 {
  font-size: 1.3rem;
  color: #0a3157;
  margin-bottom: 15px;
  font-weight: 600;
}

.culture-card p {
  font-size: 0.95rem;
  color: #667580;
  line-height: 1.6;
  margin-bottom: 20px;
}

.achievement-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #1e465a 0%, #e8edf1 100%);
  color: white;
}

.achievement-header {
  text-align: center;
  margin-bottom: 60px;
}

.achievement-header h2 {
  font-size: 2.5rem;
  margin-bottom: 15px;
  font-weight: 300;
}

.achievement-header p {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.achievement-card {
  background: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: transform 0.3s ease;
}

.achievement-card:hover {
  transform: translateY(-5px);
}

.achievement-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  opacity: 0.9;
}

.achievement-card h3 {
  font-size: 1.2rem;
  margin-bottom: 15px;
  font-weight: 600;
}

.achievement-card p {
  opacity: 0.9;
  line-height: 1.6;
}

/* 企业成就照片展示样式 */
.achievement-photos {
  margin-top: 60px;
}

.photos-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.photo-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.photo-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.photo-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.photo-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: white;
  padding: 20px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.photo-item:hover .photo-overlay {
  transform: translateY(0);
}

.photo-overlay h4 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  font-weight: 500;
}

.photo-overlay p {
  font-size: 0.9rem;
  opacity: 0.9;
  line-height: 1.4;
}

@media (max-width: 768px) {
  .company-hero h1 {
    font-size: 2.5rem;
  }

  .overview-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .timeline-years {
    flex-direction: column;
    gap: 15px;
    align-items: center;
  }

  .timeline-year-btn {
    width: 100%;
    max-width: 200px;
    text-align: center;
  }

  .culture-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .culture-card {
    padding: 20px;
  }

  .culture-card h3 {
    font-size: 1.1rem;
  }

  .culture-card p {
    font-size: 0.9rem;
  }

  .achievement-grid {
    grid-template-columns: 1fr;
  }

  .photos-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .photo-item img {
    height: 180px;
  }

  .photo-overlay {
    padding: 15px;
  }

  .photo-overlay h4 {
    font-size: 1.1rem;
  }

  .photo-overlay p {
    font-size: 0.8rem;
  }
}