/* 产品详情页样式 */

.product-hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 120px 20px 60px;
  color: #fff;
}

.product-badge {
  background: rgba(255,255,255,0.2);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.product-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.product-hero .lead {
  font-size: 1.3rem;
  opacity: 0.95;
}

.btn-light {
  background: #fff;
  color: #667eea;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: transform 0.3s;
}

.btn-light:hover {
  transform: translateY(-2px);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
  padding: 0.75rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s;
}

.btn-outline-light:hover {
  background: #fff;
  color: #667eea;
}

/* Features Section */
.features-section {
  padding: 80px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 3rem;
  color: #333;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.feature-item {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 15px;
  transition: transform 0.3s;
}

.feature-item:hover {
  transform: translateY(-5px);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature-item h4 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: #333;
}

.feature-item p {
  color: #666;
  line-height: 1.7;
}

/* Pricing Section */
.pricing-section {
  padding: 80px 20px;
  background: #f8f9fa;
}

.pricing-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.pricing-card {
  background: #fff;
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: 0 5px 30px rgba(0,0,0,0.1);
  text-align: center;
}

.pricing-card.featured {
  border: 2px solid #667eea;
  position: relative;
}

.pricing-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: #667eea;
  color: #fff;
  padding: 0.5rem 1.5rem;
  border-radius: 20px;
  font-size: 0.85rem;
}

.pricing-card h4 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 700;
  color: #667eea;
  margin: 1.5rem 0;
}

.pricing-price small {
  font-size: 1rem;
  font-weight: 400;
  color: #666;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin: 2rem 0;
}

.pricing-features li {
  padding: 0.75rem 0;
  border-bottom: 1px solid #eee;
  color: #666;
}

.pricing-features li:before {
  content: "✓ ";
  color: #198754;
  font-weight: bold;
  margin-right: 0.5rem;
}

/* Back Link */
.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  color: #667eea;
  text-decoration: none;
  font-weight: 600;
}

.back-link:before {
  content: "← ";
}

/* Responsive */
@media (max-width: 768px) {
  .feature-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .product-hero h1 {
    font-size: 2rem;
  }
}