.page_banner .head {
  padding-bottom: 0.5%;
}
.materials_nav {
  background-color: var(--bg);
  padding: 10rem 0 7.6rem;
}
.materials_nav p {
  max-width: 121.2rem;
  margin: 2.8rem auto 0;
}
.materials_nav .nav {
  margin-top: 8.1rem;
}
.materials_nav .nav .nav_list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem 3%;
}
.materials_nav .nav .nav_list li {
  min-width: 15.4%;
}
.materials_nav .nav .nav_item {
  display: block;
  height: 100%;
  cursor: pointer;
}
.materials_nav .nav .nav_item.active .icon,
.materials_nav .nav .nav_item:hover .icon {
  background-color: var(--primary);
}
.materials_nav .nav .nav_item.active .icon::after,
.materials_nav .nav .nav_item:hover .icon::after {
  opacity: 1;
}
.materials_nav .nav .nav_item.active .title,
.materials_nav .nav .nav_item:hover .title {
  color: #101011;
}
.materials_nav .nav .nav_item.active .title {
  font-size: 2.2rem;
  font-weight: 600;
  margin-top: 2.8rem;
}
.materials_nav .nav .icon {
  width: 11.1rem;
  height: 11.1rem;
  border-radius: 50%;
  transition: all 0.3s;
  background-color: #000;
  margin: 0 auto;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.materials_nav .nav .icon::after {
  background: url("../img/icon-mask.svg") no-repeat center / contain;
  position: absolute;
  width: 114.4144%;
  padding-bottom: 114.4144%;
  content: '';
  transition: opacity 0.3s;
  opacity: 0;
  animation: rotate 7s linear infinite;
  pointer-events: none;
}
.materials_nav .nav .title {
  font-size: 2rem;
  font-weight: 500;
  color: #161616;
  transition: all 0.3s;
  text-align: center;
  margin-top: 3rem;
}
@keyframes rotate {
  0% {
    transform: rotate(0);
  }
  100% {
    transform: rotate(360deg);
  }
}
.materials_main {
  padding: 7.25rem 0;
}
.materials_main.sen1 {
  padding-top: 14.7rem;
}
.materials_main .lt {
  position: sticky;
  top: 12rem;
  width: 21.8055556%;
  min-width: 26rem;
}
.materials_main .lt .title {
  font-size: 2.8rem;
  font-weight: 600;
  color: #171717;
  border-bottom: 1px solid #e5e5e5;
  letter-spacing: 0.3px;
  padding: 0.9rem 0 2.1rem;
}
.materials_main .nav {
  margin-top: 2rem;
}
.materials_main .nav .nav_list {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.materials_main .nav li + li {
  margin-top: 1.2rem;
}
.materials_main .nav .nav_item {
  font-size: 1.8rem;
  line-height: 3rem;
  display: block;
  font-weight: 500;
  color: #0f0f0f;
  opacity: 0.75;
  cursor: pointer;
  border-radius: 100px;
  transition: all 0.3s;
  padding: 0 2rem;
}
.materials_main .nav .nav_item.active,
.materials_main .nav .nav_item:hover {
  background-color: var(--primary);
  color: #Fff;
  opacity: 1;
}
.materials_main .rt {
  flex: 1;
  width: 100%;
  max-width: 100.1rem;
}
.materials_main .rt h3 {
  font-size: 3rem;
  font-weight: 600;
  color: #161616;
  letter-spacing: 0.3px;
}
.materials_main .head h2 {
  font-size: 4.8rem;
  color: #000;
}
.materials_main .head p {
  hyphens: auto;
  margin-top: 2.8rem;
}
.materials_main .head .flex {
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 4.4rem;
}
.materials_main .head .img {
  width: 38.861%;
  border-radius: 1.6rem;
  border: 1px solid rgba(205, 209, 211, 0.54);
  background-image: var(--bg2);
  --h: 67.8%;
}
.materials_main .head ul {
  flex: 1;
  max-width: 55.8rem;
  width: 100%;
  font-size: 1.8rem;
  color: var(--text);
  padding-bottom: 0.4rem;
}
.materials_main .head ul li + li {
  margin-top: 1.5rem;
}
.materials_main .head ul li {
  position: relative;
  padding-left: 2.6rem;
}
.materials_main .head ul li::before {
  width: 1.6rem;
  height: 1.6rem;
  position: absolute;
  left: 0;
  top: 1px;
  content: '';
  background: url("../img/gou.svg") no-repeat center / contain;
}
.materials_main .type {
  margin-top: 6.2rem;
}
.materials_main .type .tags {
  margin-top: 2.3rem;
}
.materials_main .type ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.materials_main .type ul li {
  font-size: 1.5rem;
  font-weight: 600;
  color: #242424;
  transition: all 0.3s;
  border-radius: 3rem;
  border: 1px solid rgba(165, 165, 165, 0.5);
  line-height: 3.9rem;
  padding: 0 2rem;
}
.materials_main .type ul li:hover {
  color: #fff;
  background-color: var(--primary);
  border-color: var(--primary);
}
.materials_main .apps {
  margin-top: 6.1rem;
}
.materials_main .apps .ls {
  margin-top: 2.3rem;
}
.materials_main .apps ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(25rem, 100%), 1fr));
  gap: 1.9rem 1.898102%;
}
.materials_main .apps li {
  border-radius: 1.6rem;
  border: 1px solid rgba(165, 165, 165, 0.5);
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  min-height: 24.1rem;
}
.materials_main .apps li.active {
  background-color: #000;
  border-color: #000;
}
.materials_main .apps li.active strong,
.materials_main .apps li.active p {
  color: #fff;
}
.materials_main .apps li.active p {
  opacity: 0.7;
}
.materials_main .apps li strong {
  font-size: 2.4rem;
  font-weight: 600;
  color: #000;
  transition: all 0.3s;
  letter-spacing: 0.25px;
  margin-top: 2px;
}
.materials_main .apps li p {
  font-size: 1.8rem;
  line-height: 2.7rem;
  color: var(--text);
  max-width: 24.4rem;
  transition: all 0.3s;
  margin-top: 1.9rem;
}
.page_faqs {
  padding-top: 14.1rem;
}
.material_img_lists {
  padding: 10rem 0;
  background-color: #fafafa;
}
.material_img_lists .head {
  margin-bottom: 8rem;
}
.material_img_lists .items {
  display: flex;
  flex-direction: column;
  gap: 8rem;
}

.material_img_lists .item strong {
  font-size: 3rem;
  font-weight: 600;
  color: #101011;
  display: block;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}
.material_img_lists .item ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(24rem, 100%), 1fr));
  gap: 3rem 2.5%;
}
.material_img_lists .item ul li {
  cursor: pointer;
  transition: all 0.3s;
}
.material_img_lists .item ul li:hover {
  transform: translateY(-6px);
}
.material_img_lists .item ul li:hover .img {
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}
.material_img_lists .item ul li:hover p {
  color: var(--primary);
}
.material_img_lists .item .img {
  background-image: var(--bg2);
  aspect-ratio: 1/0.8;
  border-radius: 1.2rem;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s;
}
.material_img_lists .item p {
  font-size: 1.8rem;
  font-weight: 500;
  color: #161616;
  margin-top: 1.6rem;
  text-align: center;
  transition: all 0.3s;
}
.material_img_lists .item .material-item.hidden {
  display: none;
}
.material_img_lists .load-more-wrapper {
  text-align: center;
  margin-top: 3rem;
}
.material_img_lists .load-more-btn {
  background-color: var(--primary);
  color: #fff;
  border: none;
  border-radius: 3rem;
  padding: 1.2rem 3rem;
  font-size: 1.6rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}
.material_img_lists .load-more-btn:hover {
  background-color: #005a9c;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 106, 180, 0.3);
}
.material_img_lists .load-more-btn.hidden {
  display: none;
}



@media screen and (max-width: 768px) {
  .materials_nav {
    padding: 50px 0;
  }
  .materials_nav .nav {
    margin-top: 20px;
  }
  .materials_nav .nav .nav_list {
    width: calc(100% + 60px);
    margin: 0 -30px;
    padding: 10px 30px;
    flex-wrap: nowrap;
    justify-content: unset;
    gap: 30px;
    overflow-x: auto;
  }
  .materials_nav .nav .nav_list::-webkit-scrollbar {
    display: none;
  }
  .materials_nav .nav .nav_list li:first-child {
    margin-left: auto;
  }
  .materials_nav .nav .nav_list li:last-child {
    margin-right: auto;
  }
  .materials_nav .nav .nav_list li {
    min-width: 100px;
    flex-shrink: 0;
  }
  .materials_nav .nav .nav_item.active .title {
    font-size: 14px;
    margin-top: 20px;
  }
  .materials_nav .nav .icon {
    width: 80px;
    height: 80px;
  }
  .materials_nav .nav .title {
    font-size: 14px;
    margin-top: 20px;
  }
  .materials_main {
    padding: 50px 0;
  }
  .materials_main.sen1 {
    padding-top: 50px;
  }
  .materials_main .lt {
    min-width: unset;
    position: static;
    width: 100%;
  }
  .materials_main .lt .title {
    font-size: 18px;
    letter-spacing: unset;
    padding: 0 0 14px;
  }
  .materials_main .nav {
    margin-top: 20px;
  }
  .materials_main .nav .nav_list {
    width: calc(100% + 60px);
    margin: 0 -30px;
    padding: 0 30px;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 10px;
    white-space: nowrap;
    overflow-x: auto;
  }
  .materials_main .nav .nav_list::-webkit-scrollbar {
    display: none;
  }
  .materials_main .nav .nav_item {
    font-size: 14px;
    line-height: 35px;
  }
  .materials_main .nav li + li {
    margin-top: 0;
  }
  .materials_main .rt h3 {
    font-size: 18px;
    letter-spacing: unset;
  }
  .materials_main .head h2 {
    font-size: 22px;
  }
  .materials_main .head p {
    margin-top: 12px;
  }
  .materials_main .head .flex {
    margin-top: 20px;
  }
  .materials_main .head .img {
    border-radius: 10px;
  }
  .materials_main .head ul {
    font-size: 14px;
    padding: 0;
  }
  .materials_main .head ul li + li {
    margin-top: 10px;
  }
  .materials_main .head ul li {
    padding-left: 25px;
  }
  .materials_main .head ul li::before {
    width: 14px;
    height: 14px;
    top: 2px;
  }
  .materials_main .type {
    margin-top: 30px;
  }
  .materials_main .type .tags {
    margin-top: 20px;
  }
  .materials_main .type ul {
    gap: 10px;
  }
  .materials_main .type ul li {
    font-size: 14px;
    line-height: 2;
  }
  .materials_main .apps {
    margin-top: 30px;
  }
  .materials_main .apps .ls {
    margin-top: 20px;
  }
  .materials_main .apps ul {
    grid-template-columns: repeat(auto-fill, minmax(min(200px, 100%), 1fr));
    gap: 16px;
  }
  .materials_main .apps li {
    border-radius: 10px;
    min-height: 130px;
    padding: 20px;
  }
  .materials_main .apps li strong {
    font-size: 16px;
    letter-spacing: unset;
    margin: 0;
  }
  .materials_main .apps li p {
    font-size: 14px;
    line-height: 1.5;
    margin-top: 10px;
  }
  .page_faqs {
    padding-top: 50px;
  }
  .material_img_lists {
    padding: 50px 0;
  }
  .material_img_lists .head {
    margin-bottom: 40px;
  }
  .material_img_lists .items {
    gap: 40px;
  }
  .material_img_lists .item {
    border-radius: 12px;
    padding: 0;
  }
  .material_img_lists .item strong {
    font-size: 18px;
    margin-bottom: 20px;
    padding-bottom: 14px;
  }
  .material_img_lists .item ul {
    grid-template-columns: repeat(auto-fill, minmax(min(140px, 100%), 1fr));
    gap: 20px;
  }
  .material_img_lists .item .img {
    border-radius: 8px;
  }
  .material_img_lists .item p {
    font-size: 14px;
    margin-top: 10px;
  }
  .material_img_lists .load-more-wrapper {
    margin-top: 20px;
  }
  .material_img_lists .load-more-btn {
    padding: 10px 24px;
    font-size: 14px;
  }
}
@media screen and (max-width: 576px) {
  .materials_nav .nav .nav_list {
    width: calc(100% + 40px);
    margin: 0 -20px;
    padding: 10px 20px;
  }
  .materials_main .nav .nav_list {
    width: calc(100% + 40px);
    margin: 0 -20px;
    padding: 0 20px;
  }
  .materials_main .head .img {
    width: 100%;
  }
}