/* header */
header {
  background: #191919;
}

header > .header_logo {
  width: 82px;
  height: 30px;
}

header > .header_logo i {
  background: url(/img/logo_popcon3.svg)no-repeat;
  background-size: 82px 30px;
}

.hidePc {
  display: none;
}

.hideMobile {
  display: block;
}

/* platform */
.platform {
  padding: 79px 83px 134px 83px;
  background: linear-gradient(183.22deg, #FFFFFF 60.13%, #CDDAFD 79.49%, #3A5EBF 106.23%);
}

.platform_view {
  width: 100%;
  max-height: 1122px;
  padding: 144px 0 155px 0;
  text-align: center;
  box-shadow: 0px 4px 30px 0 rgb(167 121 121 / 25%);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.8) 0%, rgba(220, 223, 254, 0.8) 50%, rgba(130, 138, 227, 0.8) 100%);
}

.platform_view > h1,
.platform_view > h1 span {
  font-size: var(--large-font-size40);
  font-weight: 900;
  color: #000;
}

.platform_view > p {
  font-size: var(--medium-font-size21);
  font-weight: 500;
  color: #707070;
  margin-top: 10px;
  margin-bottom: 83px;
}

.platform_view > div {
  position: relative;
  max-width: 1120.95px;
  width: 100%;
  aspect-ratio: 9/5.135;
  margin: 0 auto;
  background: url(/img/img_platform_notebook.svg) no-repeat;
  background-size: contain;
  background-position: center;
}

.platform_view > div .notebookTopWhiteSpace {
  width: 100%;
  aspect-ratio: 7/0.426;
}

.platform_view.digital_twin > div {
  /* padding-top: 27px; */
}

.platform_view > div > img {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0 auto;
  display: none;
}

.platform_view > div > .platformSwiper {
  width: 75.63%;
  aspect-ratio: 9/4.973;
}

.platform_view > div > .platform_video {
  width: 75.63%;
  /* aspect-ratio: 9/4.973; */
  position: relative;
  z-index: 1;
  margin: auto;
  overflow: hidden;
}

.platform_view > div  > .platform_video > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* intro */
.platform_intro {
  display: flex;
  max-width: 1600px;
  margin-top: 293px;
  flex-wrap: wrap;
  gap: 134px 133px;
  justify-content: center;
}

.platform_intro > div {
  max-width: 463px;
  width: 100%;
}

.platform_intro > div:nth-child(2) {
  padding-top: 361px;
}

.platform_intro > div .platform_card {
  margin-bottom: 134px;
}

.platform_intro > div .platform_card:last-child {
  margin-bottom: 0;
}

.platform_intro .platform_card {
  display: grid;
  max-width: 463px;
  width: 100%;
  padding: 48px 30px 49px 40px;
  background: #fff;
  border-radius: 20px;
  border: 1px solid var(--default-color2);
  grid-template-rows: min-content auto max-content;
}

.platform_intro .platform_card.hidden {
  visibility: hidden;
}

.platform_intro .platform_card > img {
  width: 45px;
  height: 45px;
  object-fit: contain;
  margin-bottom: 10px;
}

.platform_intro .platform_card > h3 {
  font-size: var(--large-font-size35);
  font-weight: 600;
  line-height: 47px;
  color: #0D0D0D;
  margin-bottom: 78.57px;
}

.platform_intro .platform_card > h3 > span {
  color: var(--default-color2);
  font-weight: 600;
}

.platform_intro .platform_card > h4 {    
  position: relative;
  color: #8070E4;
  font-size: var(--medium-font-size24);
  font-weight: 600;
  text-align: right;
  padding-right: 12px;
  line-height: 24px;
}

.platform_intro .platform_card > h4::after {    
  position: absolute;
  display: block;
  content: "";
  height: calc(100% - 5px);
  width: 2px;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  background-color: #989898;
}

.platform_intro .platform_card > p {
  display: flex;
  flex-direction: column;
  gap: 15px;
  text-align: right;
  color: #989898;
  font-size: 22px;
  font-weight: 500;
  line-height: 28px;
  margin-top: 9px;
  margin-bottom: 36px;
}

.platform_intro .platform_card > p > span {    
  display: block;
  position: relative;
  font-size: var(--medium-font-size24);
  font-weight: 500;
  line-height: 25px;
  color: #989898;
  padding-right: 11px;
}

.platform_intro .platform_card > p > span::after {
  content: "";
  display: block;
  position: absolute;
  width: 3px;
  height: 24px;
  top: 0;
  right: 0;
  background: #989898;
}

.platform_intro .platform_card > *:last-child {
  margin-bottom: 0;
}

.swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

@media screen and (max-width: 1680px) {
  .platform_view {
    padding: 4.6rem;
  }

  .platform_view > div > img {
    width: 100%;
  }

  .platform_intro {
    flex-direction: column;
    align-items: center;
  }
  .platform_intro > div:nth-child(2) {
    padding-top: 0;
  }
}

@media screen and (max-width: 1024px) {
  html {
    font-size: 87.5%;
  }
}

@media screen and (max-width: 768px) {
  html {
    font-size: 75%;
  }
}

@media screen and (max-width: 480px) {
  html {
    font-size: 62.5%;
  }

  header > .header_logo {
    width: 8.1rem;
    height: 0.8rem;
  }

  header > .header_logo i {
    background: url(/img/logo_popcon_mobile.svg) no-repeat;
    background-size: contain;
  }

  .hidePc {
    display: block;
  }

  .hideMobile {
    display: none;
  }

  .platform {
    padding: 0;
  }

  .platform_view {
    display: flex;
    flex-direction: column;
    min-height: 435px;
    padding: 49px 35px 50px 35px;
    border-radius: 0;
    box-shadow: none;
    background: linear-gradient(180deg, #fff 0%, #f0f0f0 63%, #E8E8E8 100%);
  }

  .platform_view h1 {
    font-size: 2rem;
    line-height: 4.8rem;
    margin-bottom: 0.5rem;
  }

  .platform_view h1:has(span) {
    font-size: 2rem;
    line-height: 2.6rem;
    margin-bottom: 1.91rem;
  }

  .platform_view > h1 span {
    font-size: 1.6rem;
    line-height: 100%;
  }

  .platform_view p {
    font-size: 1.3rem;
    line-height: 1.7rem;
    margin-top: 0;
    margin-bottom: 0;
  }

  .platform_view > div {
    margin-top: auto;
    background: url(/img/img_browser_frame.svg);
    background-position: center top;
    background-size: cover;
    aspect-ratio: 9/5.309;
    display: flex;
    flex-direction: column;
  }

  .platform_view > div .notebookTopWhiteSpace {
    aspect-ratio: 237.273/9;
  }

  .platform_view > div .platformSwiper,
  .platform_view > div .platform_video {
    width: 100%;
    margin: 0;
    box-shadow: 0 8px 8px rgba(0, 0, 0, 0.25);
  }

  .platform_intro {
    margin: 0;
    padding: 62px 35px;
    gap: 3rem;
  }

  .platform_intro > div .platform_card {
    padding: 3rem 2.4rem;
    margin-bottom: 3rem;
    border: 1.5px solid var(--default-color2);
  }

  .platform_intro .platform_card img {
    width: 3rem;
    height: 3rem;
  }

  .platform_intro .platform_card h3 {
    font-size: 2rem;
    line-height: 2.7rem;
    margin-bottom: 4.6rem;
  }

  .platform_intro .platform_card h4 {
    font-size: 1.3rem;
    line-height: 2.5rem;
    padding-right: 0.6rem;
  }

  .platform_intro .platform_card h4::after {
    width: 2px;
    height: 1.2rem;
  }

  .platform_intro .platform_card p {
    font-size: 1.3rem;
    line-height: normal;
    margin-top: 0;
    margin-bottom: 1.4rem;
  }
}