.breadcrumbs {
  position: relative;
  padding-bottom: 0;
  padding-top: 0;
  z-index: 2;
  text-align: left;
  background-color: #eb4435;
  height: 92px;
}

/* 产品介绍头部 */
.product-hero {
  padding: 100px 0;
  background: #f8f9fa;
  overflow: hidden;
}

.product-title {
  margin-bottom: 50px;
}

.product-title h1 {
  font-size: 36px;
  font-weight: 700;
  color: #333;
  margin-bottom: 20px;
}

.title-line {
  width: 80px;
  height: 4px;
  background: linear-gradient(45deg, #eb4435, #ff6b6b);
  border-radius: 2px;
  margin-top: 20px;
}
.title-line.center {
  margin: 20px auto 0;
}
.tech-advantages {
  margin-top: 40px;
}

.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px;
  margin-bottom: 20px;
  background: #fff;
  border-radius: 15px;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.advantage-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.advantage-item .icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eb443510;
  border-radius: 15px;
}

.advantage-item .icon i {
  font-size: 28px;
  color: #eb4435;
}

.advantage-item .content h4 {
  font-size: 18px;
  font-weight: 600;
  color: #333;
  margin-bottom: 8px;
}

.advantage-item .content p {
  font-size: 14px;
  color: #666;
  margin: 0;
}

.product-image {
  text-align: center;
}

.product-image img {
  max-width: 100%;
  height: 500px;
  border-radius: 20px;
}

/* 技术优势 */
.tech-features {
  padding: 100px 0;
  background: #fff;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 32px;
  color: #333;
  margin-bottom: 20px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin: 0 auto;
  max-width: 1200px;
}

.feature-card {
  padding: 40px 30px;
  background: #f8f9fa;
  border-radius: 20px;
  text-align: center;
  transition: all 0.3s ease;
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
  background: #fff;
}

.feature-card .icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eb443510;
  border-radius: 20px;
}

.feature-card .icon i {
  font-size: 36px;
  color: #eb4435;
}

.feature-card h4 {
  font-size: 20px;
  color: #333;
  margin-bottom: 15px;
}

.feature-card p {
  font-size: 15px;
  color: #666;
  line-height: 1.6;
}

/* 技术参数 */
.tech-specs {
  padding: 100px 0;
  background: #f8f9fa;
}

.specs-content h2,
.material-content h2 {
  font-size: 32px;
  color: #333;
  margin-bottom: 20px;
}

.specs-list {
  margin-top: 40px;
}

.specs-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  background: #fff;
  border-radius: 10px;
  margin-bottom: 15px;
  transition: all 0.3s ease;
}

.specs-item:hover {
  transform: translateX(10px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.specs-item .label {
  font-size: 16px;
  color: #666;
}

.specs-item .value {
  font-size: 16px;
  font-weight: 600;
  color: #333;
}

.material-desc {
  margin-top: 40px;
  padding: 30px;
  background: #fff;
  border-radius: 20px;
}

.material-desc p {
  font-size: 16px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 30px;
}

.material-features {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 30px;
}

.feature-tag {
  padding: 8px 20px;
  background: #eb443510;
  color: #eb4435;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}

.material-image {
  text-align: center;
  margin-top: 30px;
}

.material-image img {
  max-width: 100%;
  border-radius: 10px;
}

/* 响应式适配 */
@media (max-width: 991px) {
  .product-hero {
    padding: 80px 0;
  }
  
  .product-title h1 {
    font-size: 30px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .material-content {
    margin-top: 50px;
  }
}

@media (max-width: 767px) {
  .advantage-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .specs-item {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }
}