.products-hero {
  background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('https://via.placeholder.com/1920x600/0077b6/ffffff?text=产品中心') center/cover;
  color: white;
  text-align: center;
  padding: 100px 20px;
}

.products-hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.products-hero p {
  font-size: 1.3rem;
  max-width: 800px;
  margin: 0 auto;
}

.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 3rem auto;
  max-width: 800px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 12px 24px;
  background: #f8f9fa;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn.active, .filter-btn:hover {
  background: #00b4d8;
  color: white;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 4rem 0;
}

.product-card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
  position: relative;
}

.product-card:hover {
  transform: translateY(-10px);
}

.product-img {
  height: 200px;
  background: #00b4d8;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 3rem;
}

.product-info {
  padding: 1.5rem;
}

.product-info h3 {
  font-size: 1.4rem;
  color: #0d1b2a;
  margin-bottom: 0.8rem;
}

.product-info p {
  color: #555;
  line-height: 1.6;
}

.product-link {
  display: inline-block;
  margin-top: 1rem;
  color: #00b4d8;
  font-weight: 600;
  text-decoration: none;
}

.product-link i {
  margin-left: 5px;
  transition: transform 0.3s ease;
}

.product-card:hover .product-link i {
  transform: translateX(5px);
}

.features {
  padding: 5rem 0;
  background: #f0f4f8;
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-item {
  padding: 2rem;
  background: white;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.feature-icon {
  font-size: 3rem;
  color: #00b4d8;
  margin-bottom: 1rem;
}

.feature-item h3 {
  font-size: 1.3rem;
  color: #0d1b2a;
}