.page_banner::before {
  width: 100%;
  background: #000;
  opacity: 0.2;
}
.page_banner p {
  max-width: 81rem;
}
.page_banner .flex {
  padding-bottom: 11.6rem;
}
.materials_categories {
  padding: 6rem 0 7.3rem;
}
.materials_categories .nav {
  margin-top: 3.9rem;
}
.materials_categories .nav .nav_list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.materials_categories .nav .nav_item {
  display: block;
  cursor: pointer;
  transition: all 0.3s;
  border-radius: 100px;
  font-size: 1.797rem;
  font-weight: 500;
  color: var(--primary);
  border: 1px solid var(--primary);
  text-align: center;
  line-height: 3.9rem;
  padding: 0 1.45rem;
  min-width: 10.7rem;
}
.materials_categories .nav .nav_item.active,
.materials_categories .nav .nav_item:hover {
  color: #fff;
  background-color: var(--primary);
}
.materials_categories .list {
  border-top: 1px solid #efefef;
  margin-top: 1.9rem;
  padding-top: 3.2rem;
}
.materials_categories .list ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(25rem, 100%), 1fr));
  gap: 6.4rem 3.61111%;
}
.materials_categories .item {
  display: block;
  height: 100%;
  border-bottom: 1px solid #cad6e1;
  padding-bottom: 3.7rem;
}
.materials_categories .item:hover img {
  transform: scale(1.02);
}
.materials_categories .item:hover .info::after {
  animation-name: shakeX;
}
.materials_categories .item .img {
  border-radius: 0.6rem;
  padding-bottom: 75.38941%;
}
.materials_categories .item .info {
  position: relative;
  margin-top: 3.1rem;
  color: var(--primary);
  padding-right: 2rem;
}
.materials_categories .item .info::after {
  position: absolute;
  width: 1.5rem;
  height: 1.5rem;
  content: '';
  background: url("../img/nav-r.svg") no-repeat center right / contain;
  animation: 0.5s infinite alternate;
  right: 0;
  bottom: 1.5rem;
}
.materials_categories .item .info .percent {
  display: inline-block;
  font-size: 2rem;
  font-weight: 500;
  border-radius: 1.6rem;
  border: 1px solid #134084;
  line-height: 3rem;
  padding: 0 1.1rem;
}
.materials_categories .item .info .title {
  font-size: 2.079rem;
  font-weight: 600;
  margin-top: 1.4rem;
  letter-spacing: 0.01rem;
}
.materials_categories .item .info .desc {
  margin-top: 0.6rem;
  letter-spacing: -0.008rem;
}
.page_faqs {
  padding-bottom: 15.1rem;
}
.page_faqs .desc p {
  line-height: 3.2rem;
}
@media screen and (max-width: 768px) {
  .materials_categories {
    padding: 50px 0;
  }
  .materials_categories .nav {
    margin-top: 20px;
  }
  .materials_categories .nav .nav_list {
    width: calc(100% + 60px);
    margin: 0 -30px;
    padding: 0 30px;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 20px;
  }
  .materials_categories .nav .nav_list::-webkit-scrollbar {
    display: none;
  }
  .materials_categories .nav .nav_item {
    font-size: 14px;
    line-height: 34px;
    padding: 0 20px;
    min-width: 80px;
    min-width: max-content;
    white-space: nowrap;
  }
  .materials_categories .list {
    margin-top: 30px;
    padding-top: 20px;
  }
  .materials_categories .list ul {
    grid-template-columns: repeat(auto-fill, minmax(min(250px, 100%), 1fr));
    gap: 30px 16px;
  }
  .materials_categories .item {
    padding-bottom: 20px;
  }
  .materials_categories .item .info {
    margin-top: 14px;
  }
  .materials_categories .item .info::after {
    width: 12px;
    height: 12px;
    bottom: 0;
  }
  .materials_categories .item .info .percent {
    font-size: 14px;
    line-height: 20px;
    padding: 0 10px;
  }
  .materials_categories .item .info .title {
    font-size: 18px;
    letter-spacing: unset;
    margin-top: 10px;
  }
  .materials_categories .item .info .desc {
    margin-top: 5px;
    letter-spacing: unset;
  }
  .page_faqs {
    padding-bottom: 50px;
  }



}
@media screen and (max-width: 576px) {
  .materials_categories .nav .nav_list {
    width: calc(100% + 40px);
    margin: 0 -20px;
    padding: 0 20px;
  }
}