.product-info {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 4rem;
    gap: 4rem;
    line-height: 1.8;
    font-family: "SimSun"
}

.product-item {
 flex:1;
}

.product-item .h3 {
   margin:1rem 0px;
    font-size: 16px;
    font-weight: 800;
    line-height: 2;
}

.section-paragraph {
  font-size:16px;
}

 @media (max-width: 768px) {

   .product-info {
       flex-direction: column;
      gap: 1rem;
     padding: 10px;
   }

  .product-item .h3 {
      font-size: 16px;
    line-height: 2;
 }
}