.product_main {
  border-top: 1px solid #eee;
  padding: 4rem 0 6rem;
}

.product_breadcrumb {
  margin-bottom: 4rem;
}

.product_breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0;
  font-size: 1.4rem;
  color: var(--text);
}

.product_breadcrumb li {
  display: flex;
  align-items: center;
}

.product_breadcrumb li+li::before {
  content: '/';
  margin: 0 0.8rem;
  color: #ccc;
}

.product_breadcrumb a {
  transition: color 0.3s;
}

.product_breadcrumb a:hover {
  color: var(--primary);
}

.product_breadcrumb li[aria-current="page"] {
  color: var(--title);
  font-weight: 500;
}

.product_hero {
  gap: 5rem;
}

.product_gallery {
  width: 44%;
  max-width: 56rem;
}

.product_gallery_main .img.img_ab {
  background-color: #fbfbfb;
  padding-bottom: 100%;
  overflow: hidden;
}

.product_gallery_main .img.img_ab img {
  width: 100%;
  height: 100%;
  left: 0;
  transform: none;
  object-fit: cover;
}

.product_gallery_main .glightbox {
  display: block;
}

.gallery_thumbs.swiper_box {
  margin-top: 1.2rem;
}

.product_gallery_thumbs {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.gallery_thumbs_wrap {
  gap: 1rem;
}

.gallery_thumb_btn {
  flex-shrink: 0;
  width: 3.2rem;
  cursor: pointer;
  transition: all 0.3s;
  border: 1px solid #e6e9ee;
  background-color: #fff;
}

.gallery_thumb_btn::after {
  content: '';
  display: block;
  width: 100%;
  padding-bottom: 100%;
  transition: all 0.3s;
  background: url("../img/arrow.svg") no-repeat center / 38%;
  filter: contrast(0) brightness(0);
}

.gallery_thumb_btn:hover {
  border-color: var(--primary);
  background-color: var(--primary);
}

.gallery_thumb_btn:hover::after {
  filter: contrast(0) brightness(2);
}

.gallery_thumb_next::after {
  transform: rotate(180deg);
}

.gallery_thumb_btn.swiper-button-disabled {
  pointer-events: none;
  opacity: 0.35;
}

.product_gallery_thumbs .swiper-slide {
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.3s;
}

.product_gallery_thumbs .swiper-slide-thumb-active {
  opacity: 1;
}

.product_gallery_thumbs .img.img_ab {
  background-color: #fbfbfb;
  padding-bottom: 100%;
  border: 2px solid transparent;
  transition: border-color 0.3s;
  overflow: hidden;
}

.product_gallery_thumbs .swiper-slide-thumb-active .img.img_ab {
  border-color: var(--primary);
}

.product_gallery_thumbs .img.img_ab img {
  width: 100%;
  height: 100%;
  left: 0;
  transform: none;
  object-fit: cover;
}

.product_info {
  flex: 1;
  min-width: 30rem;
  max-width: 54rem;
  padding-top: 1rem;
}

.product_info .cat {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product_info .model {
  font-size: 1.4rem;
  color: var(--text);
  margin-top: 1.2rem;
  letter-spacing: -0.0086em;
}

.product_info h1 {
  font-size: 4.2rem;
  line-height: 1.15;
  font-weight: 600;
  color: var(--title);
  margin-top: 1.6rem;
}

.product_info .desc {
  font-size: 1.6rem;
  line-height: 1.625;
  color: var(--text);
  margin-top: 2rem;
}

.product_info .btn {
  margin-top: 3.5rem;
}

.product_anchor {
  position: sticky;
  top: var(--header-h, 0);
  z-index: 90;
  background-color: #fff;
  border-top: 1px solid #eee;
  border-bottom: 1px solid #eee;
  box-shadow: 0 0.4rem 1.2rem rgba(0, 0, 0, 0.04);
}

.product_anchor .nav_list {
  display: flex;
  flex-wrap: nowrap;
  gap: 3rem;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0.4rem 0;
}

.product_anchor .nav_list::-webkit-scrollbar {
  display: none;
}

.product_anchor .nav_item {
  display: block;
  flex-shrink: 0;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.3s;
  font-size: 1.6rem;
  font-weight: 500;
  color: #b2b2b2;
  border-bottom: 2px solid transparent;
  padding: 1.4rem 0;
}

.product_anchor .nav_item:hover {
  border-bottom-color: rgba(224, 0, 1, 0.2);
  color: var(--title);
}

.product_anchor .nav_item.active {
  border-bottom-color: var(--primary);
  color: var(--title);
  font-weight: 600;
}

.product_section {
  padding: 8rem 0;
}

.product_section.alt {
  background-color: var(--bg);
}

.product_intro .content {
  line-height: 1.625;
  color: var(--text);
}

.product_intro .content>*:first-child {
  margin-top: 0;
}

.product_intro .content>*:last-child {
  margin-bottom: 0;
}

.product_intro h2 {
  font-size: 3.2rem;
  font-weight: 600;
  color: var(--title);
  margin-bottom: 2rem;
}

.product_intro h3 {
  font-size: 2rem;
  font-weight: 500;
  color: var(--title);
  margin: 3rem 0 1.5rem;
}

.product_intro p {
  margin: 1rem 0;
  font-size: 1.6rem;
}

.product_intro strong {
  font-weight: 600;
  color: var(--title);
}

.product_intro a {
  color: var(--primary);
  text-decoration: underline;
  transition: all 0.3s;
}

.product_intro a:hover {
  text-decoration-color: transparent;
}

.product_intro ul {
  margin: 1.5rem 0;
}

.product_intro ul li {
  position: relative;
  padding-left: 1.2em;
  font-size: 1.6rem;
}

.product_intro ul li::before {
  width: 0.4em;
  height: 0.4em;
  position: absolute;
  left: 0;
  top: 0.6em;
  content: '';
  border-radius: 50%;
  background-color: var(--primary);
}

.product_intro ul li+li {
  margin-top: 0.4em;
}

.product_intro ol {
  counter-reset: num;
  margin: 1.5rem 0;
}

.product_intro ol li {
  position: relative;
  padding-left: 1.3em;
  font-size: 1.6rem;
}

.product_intro ol li::before {
  position: absolute;
  left: 0;
  top: 0;
  counter-increment: num;
  content: counter(num) '.';
  color: var(--primary);
  font-weight: 600;
}

.product_intro ol li+li {
  margin-top: 0.4em;
}

.product_media .media_block {
  gap: 6rem;
}

.product_media .media_img {
  width: 48%;
}

.product_media .media_img .img.img_ab {
  padding-bottom: 66.666%;
  overflow: hidden;
  border-radius: 0.4rem;
}

.product_media .media_text {
  flex: 1;
  min-width: 28rem;
  max-width: 56rem;
}

.product_media .media_text em {
  display: inline-grid;
  grid-template-columns: 2.7rem 1fr;
  align-items: center;
  text-transform: uppercase;
  font-size: 1.4rem;
  line-height: 1.2;
  font-weight: 500;
  font-style: normal;
  color: var(--text);
  gap: 0.5em;
  margin-bottom: 1.8rem;
  letter-spacing: 0.057143em;
}

.product_media .media_text em::before {
  display: block;
  padding-bottom: 33.333%;
  content: '';
  background-color: var(--primary);
  clip-path: polygon(22.2% 0, 100% 0, 77.8% 100%, 0 100%);
}

.product_media .media_text h2 {
  font-size: 3.6rem;
  line-height: 1.2;
  font-weight: 600;
  color: var(--title);
}

.product_media .media_text p {
  font-size: 1.6rem;
  line-height: 1.625;
  color: var(--text);
  margin-top: 2rem;
}

.product_media .media_text .media_desc {
  font-size: 1.6rem;
  line-height: 1.625;
  color: var(--text);
  margin-top: 2rem;
}

.product_media .media_text .media_desc>*:first-child {
  margin-top: 0;
}

.product_media .media_text .media_desc h2,
.product_media .media_text .media_desc h3 {
  color: var(--title);
  margin: 2rem 0 1rem;
}

.product_media .media_text .media_desc h2 {
  font-size: 2.4rem;
  font-weight: 600;
}

.product_media .media_text .media_desc h3 {
  font-size: 2rem;
  font-weight: 500;
}

.product_media .media_text .media_desc p {
  margin: 1rem 0;
}

.product_media .media_text .media_desc strong {
  font-weight: 600;
  color: var(--title);
}

.product_media .media_text .media_desc a {
  color: var(--primary);
  text-decoration: underline;
}

.product_media .media_text .media_desc ul,
.product_media .media_text .media_desc ol {
  margin: 1.5rem 0;
}

.product_media .media_text .media_desc ul li {
  position: relative;
  padding-left: 1.2em;
}

.product_media .media_text .media_desc ul li::before {
  width: 0.4em;
  height: 0.4em;
  position: absolute;
  left: 0;
  top: 0.6em;
  content: '';
  border-radius: 50%;
  background-color: var(--primary);
}

.product_media .media_text .media_desc ol li {
  position: relative;
  padding-left: 1.3em;
}

.product_media .media_text .media_desc ol li::before {
  position: absolute;
  left: 0;
  top: 0;
  counter-increment: num;
  content: counter(num) '.';
  color: var(--primary);
  font-weight: 600;
}

.product_media .media_text .media_desc ol {
  counter-reset: num;
}

.product_media .media_text .btn_l {
  margin-top: 3rem;
}

.product_features .section_head {
  margin-bottom: 5rem;
}

.product_features .feature_grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem 2.4rem;
}

.product_features .feature_grid li {
  background-color: #fff;
  border: 1px solid #e6e9ee;
  padding: 3rem 2.8rem;
  transition: box-shadow 0.3s;
}

.product_features .feature_grid li:hover {
  box-shadow: 0 0.8rem 2rem rgba(229, 229, 229, 0.5);
}

.product_features .feature_grid h3 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--title);
  margin-bottom: 1.2rem;
}

.product_features .feature_grid p {
  font-size: 1.5rem;
  line-height: 1.6;
  color: var(--text);
}

.product_faq .section_head {
  margin-bottom: 4rem;
}

.product_faq .faq_list {
  max-width: 96rem;
  margin: 0 auto;
}

.product_faq .faq_list>li {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.product_faq .faq_list>li:first-child {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.product_faq .faq_question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  text-align: left;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--title);
  padding: 2.4rem 0;
  cursor: pointer;
  transition: color 0.3s;
}

.product_faq .faq_question::after {
  flex-shrink: 0;
  content: '';
  width: 1.2rem;
  height: 1.2rem;
  border-right: 2px solid var(--title);
  border-bottom: 2px solid var(--title);
  transform: rotate(45deg);
  transition: transform 0.3s;
  margin-top: -0.4rem;
}

.product_faq .faq_list>li.active .faq_question {
  color: var(--primary);
}

.product_faq .faq_list>li.active .faq_question::after {
  transform: rotate(-135deg);
  margin-top: 0.4rem;
  border-color: var(--primary);
}

.product_faq .faq_answer {
  display: none;
}

.product_faq .faq_answer_inner {
  padding-bottom: 2.4rem;
}

.product_faq .faq_answer p {
  font-size: 1.6rem;
  line-height: 1.625;
  color: var(--text);
}

.product_related {
  background-color: #fff !important;
  padding-bottom: 10rem;
}

.product_related .head {
  margin-bottom: 4rem;
}

.product_related .swiper_box {
  margin-top: 0;
}

@media screen and (max-width: 1024px) {
  .product_gallery {
    width: 100%;
    max-width: 48rem;
  }

  .product_gallery_thumbs {
    max-width: 100%;
  }

  .gallery_thumbs_wrap {
    max-width: 100%;
  }

  .product_info {
    max-width: none;
  }

  .product_features .feature_grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product_media .media_img {
    width: 100%;
  }

  .product_media .media_block.row_reverse {
    flex-direction: column-reverse;
  }
}

@media screen and (max-width: 768px) {
  .product_main {
    padding: 30px 0 40px;
  }

  .product_breadcrumb {
    margin-bottom: 24px;
  }

  .product_hero {
    gap: 30px;
  }

  .product_info h1 {
    font-size: 28px;
  }

  .product_info .desc {
    font-size: 15px;
  }

  .product_info .btn {
    margin-top: 24px;
  }

  .product_anchor .nav_item {
    font-size: 14px;
    padding: 12px 0;
  }

  .product_section {
    padding: 50px 0;
  }

  .product_intro h2 {
    font-size: 24px;
  }

  .product_intro h3 {
    font-size: 18px;
  }

  .product_intro p,
  .product_intro ul li,
  .product_intro ol li {
    font-size: 15px;
  }

  .product_media .media_block {
    gap: 30px;
  }

  .product_media .media_text h2 {
    font-size: 24px;
  }

  .product_media .media_text p {
    font-size: 15px;
  }

  .product_features .feature_grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .product_features .feature_grid li {
    padding: 24px 20px;
  }

  .product_faq .faq_question {
    font-size: 16px;
    padding: 18px 0;
  }

  .product_related {
    padding-bottom: 50px;
  }
}

@media screen and (max-width: 576px) {
  .product_breadcrumb ol {
    font-size: 13px;
  }

  .product_info h1 {
    font-size: 24px;
  }
}