/* this website */
/* flex */
/* font-size */
/* color */
/* margin */
/* padding */
/* 动画 */
/* other */
.whmax {
  width: 100%;
  height: 100%;
}
.product_class {
  position: sticky;
  top: 12rem;
  width: 22rem;
  margin-right: 4rem;
}
.product_class h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 2rem;
  color: #333;
}
.product_class .proclassbox ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.product_class .proclassbox ul li {
  margin-bottom: 1.2rem;
}
.product_class .proclassbox ul li:last-child {
  margin-bottom: 0;
}
.product_class .proclassbox ul li a {
  display: block;
  padding: 0.8rem 1.5rem;
  background: #fff;
  border-radius: 5rem;
  font-size: 1.6rem;
  color: #666;
  transition: all 0.3s ease;
  box-shadow: 0 0.2rem 0.5rem rgba(0, 0, 0, 0.05);
}
.product_class .proclassbox ul li a:hover {
  color: #4FBFB6;
  box-shadow: 0 0.4rem 1rem rgba(0, 0, 0, 0.1);
}
.product_class .proclassbox ul li a.active {
  background: #4FBFB6;
  color: #fff;
  box-shadow: 0 0.4rem 1rem rgba(79, 191, 182, 0.2);
}
.product_class .proclassbox ul li ul {
  margin-top: 1rem;
  margin-left: 2rem;
}
.product_class .proclassbox ul li ul li {
  margin-bottom: 0.8rem;
}
.product_class .proclassbox ul li ul li a {
  padding: 0.8rem 1.2rem;
  font-size: 1.4rem;
  background: #f1f3f5;
}
.product_class .proclassbox ul li ul li a:hover {
  background: #e9ecef;
}
.product_class .proclassbox ul li ul li a.active {
  background: #e0f7f5;
  color: #4FBFB6;
  font-weight: 500;
  box-shadow: 0 0.2rem 0.5rem rgba(79, 191, 182, 0.1);
}
@media screen and (max-width: 768px) {
  .product_list .section_main {
    display: block;
  }
  .product_class {
    position: static;
    width: 100%;
    margin-bottom: 3rem;
  }
  .product_class .proclassbox ul li ul {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
  }
  .product_class .proclassbox ul li a {
    font-size: 2rem;
    padding: 1rem 1.5rem;
  }
  .product_list .product_img .product_hover p {
    display: none;
  }
  .product_class .proclassbox ul li ul li a {
    font-size: 1.8rem;
  }
}