@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700;800;900&family=Noto+Serif+SC:wght@700;900&display=swap");

:root {
  --parchment: #f3ead9;
  --paper: #fffaf0;
  --blue: #1946d8;
  --blue-deep: #102f9c;
  --wine: #7e1933;
  --sun: #ffd34f;
  --charcoal: #262426;
  --sage: #bfd5c5;
  --muted: #6f6961;
  --max: 1260px;
  --at20-shift: 20deg;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--charcoal);
  background: var(--parchment);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
}

.atlas-head {
  width: min(calc(100% - 44px), var(--max));
  min-height: 90px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 48px;
  position: relative;
  z-index: 40;
}

.atlas-brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -.04em;
}

.atlas-brand img,
.footer-brand img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.atlas-nav {
  display: flex;
  justify-content: center;
  gap: 30px;
  color: #57504a;
  font-size: 14px;
  font-weight: 800;
}

.atlas-nav a {
  transition: color .2s ease, transform .2s ease;
}

.atlas-nav a:hover {
  color: var(--blue);
  transform: translateY(-2px);
}

.atlas-download,
.gateway-primary,
.atlas-closing a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--paper);
  background: var(--blue);
  border-radius: 999px;
  font-weight: 900;
  transition: transform .2s ease, box-shadow .2s ease;
}

.atlas-download {
  min-height: 46px;
  padding: 0 23px;
  font-size: 14px;
}

.atlas-download:hover,
.gateway-primary:hover,
.atlas-closing a:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 38px rgba(25, 70, 216, .22);
}

.atlas-menu {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--charcoal);
  background: transparent;
  border: 0;
  font-size: 20px;
  cursor: pointer;
}

.gateway {
  width: min(calc(100% - 44px), 1390px);
  min-height: 740px;
  margin: 22px auto 85px;
  display: grid;
  grid-template-columns: .2fr .9fr .9fr;
  gap: 45px;
  align-items: center;
  position: relative;
}

.gateway-index {
  align-self: stretch;
  display: flex;
  align-items: flex-end;
  padding-bottom: 68px;
  color: var(--wine);
  font-size: clamp(96px, 12vw, 170px);
  line-height: .75;
  font-weight: 900;
  letter-spacing: -.1em;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.gateway-copy {
  position: relative;
  z-index: 2;
}

.small-cap,
.section-mark {
  margin: 0 0 21px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.section-mark.light {
  color: var(--sun);
}

.section-mark.dark {
  color: var(--wine);
}

.gateway h1 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(60px, 6.9vw, 102px);
  line-height: .98;
  letter-spacing: -.07em;
  font-weight: 900;
}

.gateway h1 span {
  color: var(--blue);
}

.gateway-text {
  max-width: 650px;
  margin: 31px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.95;
}

.gateway-actions {
  margin-top: 38px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 25px;
}

.gateway-primary {
  min-height: 60px;
  padding: 0 32px;
  font-size: 16px;
}

.gateway-secondary {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 15px;
  font-weight: 900;
}

.gateway-secondary i {
  transition: transform .2s ease;
}

.gateway-secondary:hover i {
  transform: translateX(5px);
}

.gateway-note {
  max-width: 650px;
  margin: 25px 0 0;
  color: #777068;
  font-size: 13px;
  line-height: 1.75;
}

.gateway-platforms {
  min-height: 530px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 42px;
  padding: 70px 65px;
  color: var(--paper);
  background: var(--wine);
  clip-path: polygon(8% 0, 100% 7%, 93% 100%, 0 92%);
}

.gateway-platforms a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 5px 20px;
  align-items: center;
}

.gateway-platforms span {
  font-family: "Noto Serif SC", serif;
  font-size: clamp(30px, 3.2vw, 46px);
  line-height: 1;
  font-weight: 900;
}

.gateway-platforms em {
  color: rgba(255, 250, 240, .68);
  font-size: 13px;
  font-style: normal;
}

.gateway-platforms i {
  grid-row: 1 / span 2;
  grid-column: 2;
  color: var(--sun);
  font-size: 32px;
}

.routefield,
.reasonfield,
.checkfield {
  width: min(calc(100% - 44px), var(--max));
  margin-left: auto;
  margin-right: auto;
}

.routefield {
  padding: 105px 0 145px;
  display: grid;
  grid-template-columns: .76fr 1.24fr;
  gap: 105px;
}

.routefield-copy h2,
.launchstory-copy h2,
.reasonfield-heading h2,
.desktop-side h2,
.mobile-side h2,
.checkfield-copy h2,
.questionfield-title h2 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(44px, 5.2vw, 75px);
  line-height: 1.08;
  letter-spacing: -.055em;
  font-weight: 900;
}

.routefield-copy > p {
  max-width: 700px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.routefield-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 55px 65px;
}

.routefield-links a {
  min-width: 0;
}

.routefield-links strong,
.routefield-links span {
  display: block;
}

.routefield-links strong {
  color: var(--wine);
  font-size: 26px;
}

.routefield-links span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.routefield-links b {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
}

.routefield-links b i {
  transition: transform .2s ease;
}

.routefield-links a:hover b i {
  transform: translateX(5px);
}

.launchstory {
  padding: 140px max(22px, calc((100vw - var(--max)) / 2));
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  gap: 95px;
  align-items: center;
  color: var(--paper);
  background: var(--blue);
}

.launchstory-copy > p {
  max-width: 740px;
  margin: 24px 0 0;
  color: rgba(255, 250, 240, .74);
  font-size: 17px;
  line-height: 1.9;
}

.launch-steps {
  margin: 45px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 35px 45px;
  list-style: none;
}

.launch-steps li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 17px;
}

.launch-steps li > span {
  color: var(--sun);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
}

.launch-steps h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.launch-steps p {
  margin: 0;
  color: rgba(255, 250, 240, .68);
  line-height: 1.8;
}

.launchstory-media {
  margin: 0;
  min-height: 560px;
  display: grid;
  place-items: center;
  background: var(--sun);
  clip-path: ellipse(49% 46% at 50% 50%);
}

.launchstory-media img {
  width: 87%;
  max-height: 520px;
  object-fit: contain;
}

.reasonfield {
  padding: 145px 0 150px;
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 105px;
  align-items: start;
}

.reasonfield-heading {
  position: sticky;
  top: 105px;
}

.reasonfield-copy {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 58px 65px;
}

.reasonfield-copy article > span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .15em;
}

.reasonfield-copy h3 {
  margin: 11px 0 10px;
  font-size: 26px;
}

.reasonfield-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.devicepair {
  width: 100%;
}

.desktop-side,
.mobile-side {
  min-height: 650px;
  padding: 115px max(22px, calc((100vw - var(--max)) / 2));
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 95px;
  align-items: center;
}

.desktop-side {
  color: var(--paper);
  background: var(--wine);
}

.mobile-side {
  color: var(--charcoal);
  background: var(--sun);
}

.desktop-side figure,
.mobile-side figure {
  margin: 0;
  min-height: 500px;
  display: grid;
  place-items: center;
}

.desktop-side figure {
  background: var(--sage);
  clip-path: polygon(7% 0, 96% 5%, 100% 48%, 87% 100%, 9% 94%, 0 43%);
}

.mobile-side figure {
  background: var(--paper);
  clip-path: ellipse(49% 46% at 50% 50%);
}

.desktop-side img,
.mobile-side img {
  width: 88%;
  max-height: 470px;
  object-fit: contain;
}

.desktop-side p,
.mobile-side p {
  max-width: 730px;
  margin: 24px 0 0;
  font-size: 17px;
  line-height: 1.9;
}

.desktop-side p {
  color: rgba(255, 250, 240, .74);
}

.mobile-side p {
  color: rgba(38, 36, 38, .7);
}

.mobile-side a {
  margin-top: 34px;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--wine);
  font-weight: 900;
}

.mobile-side a i {
  transition: transform .2s ease;
}

.mobile-side a:hover i {
  transform: translateX(5px);
}

.checkfield {
  padding: 145px 0 150px;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 95px;
  align-items: center;
}

.checkfield-media {
  margin: 0;
  min-height: 520px;
  display: grid;
  place-items: center;
  background: var(--sage);
  clip-path: polygon(7% 0, 96% 5%, 100% 48%, 87% 100%, 9% 94%, 0 43%);
}

.checkfield-media img {
  width: 87%;
  max-height: 485px;
  object-fit: contain;
}

.checkfield-notes {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 35px 45px;
}

.checkfield-notes p {
  margin: 0;
}

.checkfield-notes strong,
.checkfield-notes span {
  display: block;
}

.checkfield-notes strong {
  color: var(--blue);
  font-size: 22px;
}

.checkfield-notes span {
  margin-top: 9px;
  color: var(--muted);
  line-height: 1.8;
}

.questionfield {
  padding: 145px max(22px, calc((100vw - var(--max)) / 2));
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 120px;
  align-items: start;
  color: var(--paper);
  background: var(--charcoal);
}

.questionfield-title {
  position: sticky;
  top: 100px;
}

.questionfield-list {
  display: grid;
  gap: 34px;
}

.questionfield-list summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  list-style: none;
  font-size: 20px;
  line-height: 1.55;
  font-weight: 900;
}

.questionfield-list summary::-webkit-details-marker {
  display: none;
}

.questionfield-list summary i {
  margin-top: 8px;
  color: var(--sun);
  font-size: 14px;
  transition: transform .2s ease;
}

.questionfield-list details[open] summary i {
  transform: rotate(45deg);
}

.questionfield-list p {
  max-width: 760px;
  margin: 14px 0 0;
  color: rgba(255, 250, 240, .68);
  line-height: 1.85;
}

.atlas-closing {
  min-height: 500px;
  padding: 90px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--paper);
  background: var(--blue);
}

.atlas-closing > p {
  margin: 0 0 17px;
  color: var(--sun);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .16em;
}

.atlas-closing h2 {
  max-width: 930px;
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(56px, 7vw, 102px);
  line-height: .98;
  letter-spacing: -.06em;
  font-weight: 900;
}

.atlas-closing a {
  min-height: 62px;
  margin-top: 40px;
  padding: 0 34px;
  color: var(--charcoal);
  background: var(--sun);
  font-size: 17px;
}

.atlas-closing > span {
  margin-top: 19px;
  color: rgba(255, 250, 240, .62);
  font-size: 13px;
}

.atlas-footer {
  width: 100%;
  min-height: 126px;
  padding: 0 max(22px, calc((100vw - var(--max)) / 2));
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 38px;
  color: var(--paper);
  background: var(--wine);
  font-size: 13px;
}

.footer-brand {
  color: var(--paper);
  font-size: 18px;
}

.footer-brand img {
  width: 31px;
  height: 31px;
}

@media (max-width: 1040px) {
  .atlas-head {
    grid-template-columns: auto 1fr auto auto;
    gap: 16px;
  }

  .atlas-nav {
    display: none;
    position: fixed;
    inset: 78px 0 auto;
    width: 100%;
    padding: 35px 24px 39px;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    color: var(--paper);
    background: rgba(38, 36, 38, .98);
    backdrop-filter: blur(18px);
  }

  .atlas-nav.is-open {
    display: flex;
  }

  .atlas-menu {
    display: grid;
    place-items: center;
  }

  .atlas-download {
    justify-self: end;
  }

  .gateway {
    grid-template-columns: auto 1fr;
    min-height: auto;
    padding-top: 55px;
  }

  .gateway-platforms {
    grid-column: 1 / -1;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
  }

  .routefield,
  .launchstory,
  .reasonfield,
  .desktop-side,
  .mobile-side,
  .checkfield,
  .questionfield {
    grid-template-columns: 1fr;
  }

  .reasonfield-heading,
  .questionfield-title {
    position: static;
  }

  .launchstory-media,
  .desktop-side figure,
  .mobile-side figure,
  .checkfield-media {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
  }
}

@media (max-width: 720px) {
  .atlas-head {
    width: min(calc(100% - 28px), var(--max));
    min-height: 76px;
    grid-template-columns: auto 1fr auto;
  }

  .atlas-download {
    display: none;
  }

  .gateway,
  .routefield,
  .reasonfield,
  .checkfield {
    width: min(calc(100% - 30px), var(--max));
  }

  .gateway {
    margin-top: 0;
    margin-bottom: 35px;
    grid-template-columns: 1fr;
    gap: 35px;
  }

  .gateway-index {
    display: none;
  }

  .gateway h1 {
    font-size: clamp(50px, 14.5vw, 70px);
  }

  .gateway-text {
    margin-top: 25px;
    font-size: 16px;
    line-height: 1.85;
  }

  .gateway-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 18px;
  }

  .gateway-primary {
    width: 100%;
  }

  .gateway-secondary {
    justify-content: center;
  }

  .gateway-platforms {
    min-height: auto;
    padding: 60px 34px;
  }

  .routefield,
  .reasonfield,
  .checkfield {
    padding-top: 84px;
    padding-bottom: 92px;
    gap: 52px;
  }

  .routefield-links,
  .reasonfield-copy {
    grid-template-columns: 1fr;
    gap: 47px;
  }

  .launchstory {
    padding-top: 90px;
    padding-bottom: 95px;
    gap: 48px;
  }

  .launch-steps {
    grid-template-columns: 1fr;
    gap: 33px;
  }

  .launchstory-media,
  .desktop-side figure,
  .mobile-side figure,
  .checkfield-media {
    min-height: 350px;
  }

  .desktop-side,
  .mobile-side {
    min-height: auto;
    padding-top: 90px;
    padding-bottom: 95px;
    gap: 48px;
  }

  .mobile-side figure {
    order: -1;
  }

  .checkfield-notes {
    grid-template-columns: 1fr;
    gap: 37px;
  }

  .questionfield {
    padding-top: 95px;
    padding-bottom: 100px;
    gap: 52px;
  }

  .questionfield-list summary {
    font-size: 18px;
  }

  .atlas-closing {
    min-height: 430px;
    padding: 75px 20px;
  }

  .atlas-closing h2 {
    font-size: clamp(48px, 13.8vw, 68px);
  }

  .atlas-footer {
    padding: 36px 20px;
    grid-template-columns: 1fr;
    gap: 13px;
    text-align: center;
  }

  .footer-brand {
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}