.product-hero {
      background: linear-gradient(rgba(44, 62, 80, 0.75), rgba(44, 62, 80, 0.75)),
                  url('images/engine-oil.png') center/cover no-repeat;
      color: white;
      padding: 80px 0;
      position: relative;
      z-index: 1;
    }

    .product-hero h1 {
      font-size: 48px;
      font-weight: 700;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
      position: relative;
      z-index: 10;
    }

    .product-hero p {
      font-size: 20px;
      opacity: 0.95;
      font-weight: 300;
      position: relative;
      z-index: 10;
    }

    .product-hero .container {
      position: relative;
      z-index: 10;
    }

    .product-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      margin-bottom: 48px;
    }

    .product-image {
      width: 100%;
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    }

    .product-info h2 {
      font-size: 32px;
      margin-bottom: 20px;
      color: #2c3e50;
      font-weight: 700;
    }

    .product-info h3 {
      font-size: 24px;
      margin: 32px 0 16px;
      color: #2c3e50;
      font-weight: 600;
    }

    .product-info p {
      line-height: 1.8;
      margin-bottom: 16px;
      color: #555;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 32px;
      margin-top: 48px;
    }

    .feature-card {
      background: white;
      padding: 40px 32px;
      border-radius: 8px;
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
      border: 1px solid #e8e8e8;
      transition: all 0.3s ease, opacity 0.8s ease, transform 0.8s ease;
      position: relative;
      opacity: 0;
      transform: translateY(40px);
    }

    .feature-card.animate-in {
      opacity: 1;
      transform: translateY(0);
    }

    .feature-card.animate-in:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    }

    .animate-section {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .animate-section.animate-in {
      opacity: 1;
      transform: translateY(0);
    }

    .specs-table {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .specs-table.animate-in {
      opacity: 1;
      transform: translateY(0);
    }

    .feature-number {
      font-size: 48px;
      font-weight: 800;
      color: #337ab7;
      margin-bottom: 16px;
      line-height: 1;
      opacity: 0.8;
    }

    .feature-card h3 {
      font-size: 20px;
      margin: 0 0 12px 0;
      color: #2c3e50;
      font-weight: 600;
    }

    .feature-card p {
      font-size: 15px;
      line-height: 1.7;
      color: #666;
      margin: 0;
    }

    .specs-table {
      width: 100%;
      max-width: 900px;
      margin: 32px auto;
      border-collapse: collapse;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      border-radius: 8px;
      overflow: hidden;
    }

    .specs-table th,
    .specs-table td {
      padding: 20px 24px;
      text-align: left;
      border-bottom: 1px solid #e8e8e8;
    }

    .specs-table th {
      background-color: #2c3e50;
      color: white;
      font-weight: 600;
      width: 200px;
      min-width: 120px;
    }

    .specs-table td {
      background-color: white;
    }

    .specs-table tr:hover td {
      background-color: #f8f9fa;
    }

    .product-divider {
      margin: 80px 0;
      height: 2px;
      background: linear-gradient(to right, transparent, #e8e8e8, transparent);
    }

    @media (max-width: 768px) {
      .product-hero h1 {
        font-size: 36px;
      }

      .product-content {
        grid-template-columns: 1fr;
        gap: 24px;
      }

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

      .specs-table {
        width: 100%;
        border: none;
        box-shadow: none;
      }

      .specs-table tr {
        display: block;
        margin-bottom: 16px;
        border: 1px solid #e8e8e8;
        border-radius: 8px;
        overflow: hidden;
      }

      .specs-table th,
      .specs-table td {
        display: block;
        width: 100%;
        padding: 12px 16px;
        border: none;
      }

      .specs-table th {
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
      }
    }