* {
      box-sizing: border-box;
    }

    .product-card {
      border: 0px solid #888888;
      border-radius: 12px;
      background: #ffffff;
      padding: 20px;
      margin: 0 auto;
      margin-bottom: 20px;
      max-width: 1000px;
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
    }

    .product-title {
      font-size: 30px; /*1.5rem;*/
      line-height: 120%;
      font-weight: 600;
      margin-bottom: 10px;
      color: #365f91;
    }

    .product-brief {
      font-size: 24px;
      line-height: 120%;
      margin-bottom: 15px;
      color: #365f91;
      text-indent: 1.5em;
    }

    .product-image {
      width: 100%;
      max-height: 300px;
      object-fit: contain;
      margin-bottom: 15px;
      border-radius: 8px;
    }

    .product-description {
      overflow: hidden;
      max-height: 3.2em;
      font-size: 24px;
      line-height: 120%;
      color: #365f91;
      transition: max-height 0.5s ease, color 0.3s ease;
      text-indent: 1.5em;
    }

    .product-description.open {
      max-height: 1000px;
      color: #365f91;
    }

    .product-details {
      margin-top: 15px;
      font-size: 24px;
      line-height: 120%;
      display: none;
      color: #365f91;
    }

    .product-details.open {
      display: block;
    }
    
    .product-specs {
      margin-top: 10px;
      padding-left: 20px;
    }
    
    .product-specs-title {
        text-align: center;
        font-size: 30px; /*1.2rem;*/
        font-weight: bold;
        margin-bottom: 10px;
    }
    
    
    .product-specs ul {
      list-style: none;
      padding: 0;
    }

    .product-specs li {
      display: flex;
      justify-content: space-between;
      padding: 5px 0;
      border-bottom: 1px solid #ddd;
    }

    .toggle-btn {
      margin-top: 15px;
      background-color: #365f91;
      color: white;
      border: none;
      padding: 10px 20px;
      border-radius: 8px;
      font-size: 1rem;
      cursor: pointer;
      transition: background-color 0.3s ease;
    }

    .toggle-btn:hover {
      background-color: #4e7cb0;
    }

    @media (max-width: 768px) {
      .product-card {
        padding: 15px;
      }

      .product-title {
        font-size: 1.2rem;
      }

      .toggle-btn {
        width: 100%;
      }
    }