.post_head .bn_mask {
  height: auto;
  top: unset;
  bottom: 0;
  max-height: 100%;
}
.post_head .flex {
  min-height: 77.9rem;
  padding: 18.4rem 0 22rem;
}
.post_head .head {
  position: relative;
  z-index: 2;
}
.post_head .head h1 {
  font-size: 6rem;
  line-height: 1.2666667;
}
.post_head .head .metas {
  font-size: 1.8rem;
  margin-top: 5.8rem;
}
.post_head .head .metas strong {
  font-size: 2.6rem;
  font-weight: 600;
}
.post_head .mask_img {
  position: absolute;
  width: 82.357143%;
  height: auto;
  right: -11.5%;
  bottom: -8.4724%;
  pointer-events: none;
}
.post_main {
  padding: 7.5rem 0 6.9rem;
}
.post_main .lt {
  flex: 1;
  max-width: 96.6rem;
  width: 100%;
}
.post_main .post_img {
  z-index: 3;
  width: 100%;
  border-radius: 2.4rem;
  padding-bottom: 51.966874%;
  margin-top: -27rem;
}
.post_main .infos {
  margin-top: 2.6rem;
}
.post_main .infos ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 0;
}
.post_main .infos li {
  font-size: 1.542rem;
  font-weight: 500;
  color: #828282;
  display: flex;
  align-items: center;
}
.post_main .infos li span {
  font-weight: 700;
  color: #141414;
}
.post_main .infos li::before {
  content: ' | ';
  display: inline-block;
  margin: 0 1.1rem 0 1.2rem;
}
.post_main .infos li:first-child::before {
  display: none;
}
.post_main .infos .author img {
  width: 3.4rem;
  height: 3.4rem;
  margin-right: 1.1rem;
  border-radius: 50%;
  object-fit: cover;
}
.post_main .infos img {
  display: inline-block;
  object-fit: contain;
  width: 2.2rem;
  height: 2.2rem;
  margin-right: 0.8rem;
}
.post_main .postdetail {
  margin-top: 4rem;
  line-height: 1.713125;
  color: #565656;
  hyphens: auto;
}
.post_main .postdetail .content > *:first-child {
  margin-top: 0;
}
.post_main .postdetail .content > *:last-child {
  margin-bottom: 0;
}
.post_main .postdetail h1,
.post_main .postdetail h2,
.post_main .postdetail h3,
.post_main .postdetail strong {
  font-family: "Open Sans", sans-serif;
}
.post_main .postdetail h2 {
  font-size: 2.8rem;
  font-weight: 600;
  color: #0f0f0f;
  margin: 4rem 0 1.2rem;
}
.post_main .postdetail h3 {
  font-size: 2rem;
  font-weight: 600;
  color: #0f0f0f;
  margin: 2rem 0 1rem;
}
.post_main .postdetail p {
  margin: 0.9rem 0;
}
.post_main .postdetail a {
  color: var(--primary);
  text-decoration: underline;
  transition: all 0.3s;
}
.post_main .postdetail a:hover {
  color: var(--secondary);
  text-decoration-color: transparent;
}
.post_main .postdetail img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 2.4rem;
  object-fit: cover;
  margin: 4rem 0;
}
.post_main .postdetail ul {
  margin: 3rem 0;
}
.post_main .postdetail ul li {
  position: relative;
  padding-left: 2.9rem;
}
.post_main .postdetail ul li::before {
  width: 0.8rem;
  height: 0.8rem;
  position: absolute;
  left: 0;
  top: 1rem;
  content: '';
  border-radius: 50%;
  background-color: var(--primary);
}
.post_main .postdetail ul li + li {
  margin-top: 1rem;
}
.post_main .postdetail .wp-block-columns {
  gap: 16px;
}
.post_main .rt {
  width: 24.857%;
  min-width: 28rem;
  position: sticky;
  top: 12rem;
}
.post_main .rt .nav li + li {
  margin-top: 1.9rem;
}
.post_main .rt .nav .nav_item {
  display: block;
  cursor: pointer;
  transition: all 0.3s;
  text-align: center;
  border-radius: 100px;
  background-color: transparent;
  border: 1px solid #495461;
  font-weight: 700;
  font-size: 2.2rem;
  line-height: 6.3rem;
  padding: 0 3rem;
}
.post_main .rt .nav .nav_item:hover,
.post_main .rt .nav .nav_item.active {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.post_main .rt .list {
  margin-top: 5rem;
}
.post_main .rt .list ul {
  display: grid;
  gap: 2.3rem;
}
.post_main .rt .list a {
  display: block;
  height: 100%;
  transition: all 0.3s;
  border-radius: 1.6rem;
  border: 1px solid #dbddde;
  background-color: #fff;
  padding: 1rem 1.1rem 2.8rem 1.1rem;
}
.post_main .rt .list .img {
  padding-bottom: 46.5615385%;
  border-radius: 1.6rem;
}
.post_main .rt .list .title {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  font-size: 2.4rem;
  line-height: 1.4166667;
  font-weight: 600;
  hyphens: auto;
  margin-top: 2.2rem;
}
.post_main .rt .slide .title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #0f0f0f;
  margin-bottom: 1.6rem;
}
.post_main .rt .tags {
  margin-top: 4.1rem;
}
.post_main .rt .tags ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.post_main .rt .tags li {
  transition: all 0.3s;
  font-size: 1.495rem;
  font-weight: 500;
  color: rgba(20, 20, 20, 0.8);
  border-radius: 100px;
  border: 1px solid #e5e5e5;
  background-color: #fcfcfc;
  padding: 1rem 1.9rem;
}
.post_main .rt .tags li:hover {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.post_main .rt .share {
  margin-top: 4.5rem;
}
.post_main .rt .share ul {
  gap: 2rem 1.4rem;
  display: flex;
  flex-wrap: wrap;
}
.post_main .rt .share .active a {
  background-color: var(--primary);
}
.post_main .rt .share .active a::after {
  filter: contrast(0) brightness(2);
}
.post_main .rt .share a {
  opacity: 1;
  display: block;
  width: 5.4rem;
  height: 5.4rem;
  overflow: hidden;
  text-indent: -999px;
  position: relative;
  transition: all 0.3s;
  border-radius: 50%;
  background-color: #efefef;
}
.post_main .rt .share a::after {
  content: '';
  display: block;
  position: absolute;
  inset: 0;
  background: no-repeat center / contain;
  transition: all 0.3s;
}
.post_main .rt .share .facebook a::after {
  background-image: url(../img/facebook.svg);
}
.post_main .rt .share .twitter a::after {
  background-image: url(../img/twitter.svg);
}
.post_main .rt .share .linkedin a::after {
  background-image: url(../img/linkedin.svg);
}
.page_cases {
  padding-top: 6.8rem;
  padding-bottom: 1.9rem;
}
@media screen and (min-width: 769px) and (max-width: 1440px) {
  .post_head .mask_img {
    right: 0;
    width: 75%;
  }
}
@media screen and (min-width: 769px) and (max-width: 1024px) {
  .post_head .head h1 {
    font-size: 5rem;
  }
  .post_head .mask_img {
    bottom: 0;
  }
}
@media screen and (max-width: 768px) {
  .post_head .flex {
    min-height: unset;
    padding: 30px 0 90px;
  }
  .post_head .head h1 {
    font-size: 22px;
    line-height: 1.3;
  }
  .post_head .head .metas {
    font-size: 14px;
    margin-top: 12px;
  }
  .post_head .head .metas strong {
    font-size: 15px;
  }
  .post_head .mask_img {
    width: 50%;
    right: 0;
  }
  .post_main {
    padding: 30px 0 50px;
  }
  .post_main .flex {
    gap: 40px;
  }
  .post_main .post_img {
    margin-top: -80px;
    border-radius: 10px;
  }
  .post_main .infos {
    margin-top: 20px;
  }
  .post_main .infos li {
    font-size: 14px;
  }
  .post_main .infos li::before {
    margin: 0 10px;
  }
  .post_main .infos .author img {
    width: 30px;
    height: 30px;
    margin-right: 10px;
  }
  .post_main .infos img {
    width: 18px;
    height: 18px;
    margin-right: 10px;
  }
  .post_main .postdetail {
    font-size: 14px;
    line-height: 1.5;
    margin-top: 30px;
  }
  .post_main .postdetail h2 {
    font-size: 18px;
    margin: 20px 0 14px;
    letter-spacing: unset;
  }
  .post_main .postdetail h3 {
    font-size: 16px;
    margin: 14px 0;
  }
  .post_main .postdetail p {
    margin: 10px 0;
  }
  .post_main .postdetail img {
    border-radius: 10px;
    margin: 30px 0;
  }
  .post_main .postdetail ul {
    margin: 14px 0;
  }
  .post_main .postdetail ul li + li {
    margin-top: 10px;
  }
  .post_main .postdetail ul li {
    padding-left: 25px;
  }
  .post_main .postdetail ul li::before {
    width: 7px;
    height: 7px;
    top: 7px;
  }
  .post_main .rt {
    width: 100%;
    min-width: unset;
    position: static;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px 20px;
  }
  .post_main .rt .nav {
    width: 100%;
  }
  .post_main .rt .nav .nav_list {
    width: calc(100% + 60px);
    margin: 0 -30px;
    padding: 0 30px;
    flex-wrap: nowrap;
    gap: 20px;
    white-space: nowrap;
    display: flex;
    overflow-x: auto;
  }
  .post_main .rt .nav .nav_list::-webkit-scrollbar {
    display: none;
  }
  .post_main .rt .nav .nav_list li {
    flex: 1 0 120px;
  }
  .post_main .rt .nav .nav_list li + li {
    margin: 0;
  }
  .post_main .rt .nav .nav_item {
    font-size: 14px;
    line-height: 40px;
    padding: 0 20px;
  }
  .post_main .rt .list {
    width: 100%;
    margin: 0;
  }
  .post_main .rt .list ul {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .post_main .rt .list a {
    padding: 10px;
    border-radius: 10px;
  }
  .post_main .rt .list .img {
    border-radius: 10px;
  }
  .post_main .rt .list .title {
    font-size: 16px;
    line-height: 1.5;
    margin-top: 14px;
  }
  .post_main .rt .slide {
    margin-top: 0;
    width: calc((100% - 20px) / 2);
  }
  .post_main .rt .slide .title {
    font-size: 18px;
    margin-bottom: 20px;
  }
  .post_main .rt .tags ul {
    gap: 12px;
  }
  .post_main .rt .tags ul li {
    font-size: 14px;
    padding: 5px 20px;
  }
  .post_main .rt .share ul {
    gap: 16px;
  }
  .post_main .rt .share ul a {
    width: 40px;
    height: 40px;
  }
}
@media screen and (max-width: 576px) {
  .post_main .rt .list ul {
    grid-template-columns: 1fr;
  }
  .post_main .rt .slide {
    width: 100%;
  }
  .post_main .rt .nav .nav_list {
    width: calc(100% + 40px);
    margin: 0 -20px;
    padding: 0 20px;
  }
}