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

:root {
  --paper: #fbfaf6;
  --ink: #171717;
  --red: #e63b32;
  --red-dark: #b62521;
  --ice: #dfe9ef;
  --stone: #e8e5de;
  --white: #ffffff;
  --muted: #696763;
  --max: 1240px;
  --nr18-phase: 18deg;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

button {
  font: inherit;
}

.edition-rail {
  position: fixed;
  inset: 0 auto 0 0;
  width: 78px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
  color: var(--white);
  background: var(--red);
  z-index: 50;
}

.edition-rail span,
.edition-rail em {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 11px;
  font-style: normal;
  font-weight: 800;
  letter-spacing: .18em;
}

.edition-rail strong {
  font-size: 35px;
  line-height: 1;
  font-weight: 900;
}

.masthead {
  width: min(calc(100% - 150px), 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;
}

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

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

.nav {
  display: flex;
  justify-content: center;
  gap: 30px;
  color: #4e4b47;
  font-size: 14px;
  font-weight: 800;
}

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

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

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

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

.header-download:hover,
.primary-download:hover,
.closing-section a:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 38px rgba(23, 23, 23, .2);
}

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

.frontpage {
  width: min(calc(100% - 150px), 1370px);
  min-height: 730px;
  margin: 22px auto 85px;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 78px;
  align-items: center;
  position: relative;
}

.front-copy {
  position: relative;
  z-index: 3;
}

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

.section-label.pale {
  color: var(--ice);
}

.frontpage h1 {
  margin: 0;
  font-size: clamp(58px, 6.8vw, 100px);
  line-height: .94;
  letter-spacing: -.08em;
  font-weight: 900;
}

.frontpage h1 span {
  color: var(--red);
}

.front-text {
  max-width: 650px;
  margin: 32px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.95;
}

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

.primary-download {
  min-height: 60px;
  padding: 0 32px;
  background: var(--red);
  font-size: 16px;
}

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

.front-link i {
  transition: transform .2s ease;
}

.front-link:hover i {
  transform: translateX(5px);
}

.front-note {
  max-width: 640px;
  margin: 25px 0 0;
  color: #77726c;
  font-size: 13px;
  line-height: 1.75;
}

.front-media {
  min-height: 620px;
  margin: 0;
  display: grid;
  place-items: center;
  position: relative;
}

.front-media::before {
  content: "";
  position: absolute;
  width: 94%;
  aspect-ratio: 1.16;
  background: var(--ice);
  clip-path: polygon(5% 0, 94% 4%, 100% 44%, 87% 98%, 13% 100%, 0 61%);
}

.front-media::after {
  content: "";
  position: absolute;
  width: 165px;
  height: 165px;
  right: 2%;
  top: 7%;
  background: var(--red);
  border-radius: 50%;
}

.front-media img {
  width: min(93%, 820px);
  max-height: 590px;
  object-fit: contain;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 34px 42px rgba(23, 23, 23, .2));
}

.front-stamp {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 180px;
  height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
  background: var(--ink);
  border-radius: 50%;
  z-index: 4;
}

.front-stamp strong {
  font-size: 68px;
  line-height: .9;
}

.front-stamp span,
.front-stamp em {
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
}

.download-section,
.scene-section,
.status-section {
  width: min(calc(100% - 150px), var(--max));
  margin-left: auto;
  margin-right: auto;
}

.download-section {
  padding: 105px 0 145px;
}

.section-heading {
  max-width: 900px;
}

.section-heading h2,
.how-copy h2,
.scene-heading h2,
.service-copy h2,
.status-title h2,
.faq-heading h2 {
  margin: 0;
  font-size: clamp(44px, 5.3vw, 76px);
  line-height: 1.07;
  letter-spacing: -.065em;
  font-weight: 900;
}

.section-heading > p:last-child {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.download-words {
  margin-top: 82px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 68px 115px;
}

.download-words > a {
  min-width: 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 24px;
  align-items: center;
}

.download-words span {
  font-size: clamp(47px, 5vw, 72px);
  line-height: .95;
  letter-spacing: -.065em;
  font-weight: 900;
}

.download-words > a > i {
  grid-row: 1 / span 2;
  grid-column: 2;
  color: var(--red);
  font-size: 44px;
}

.download-words em {
  color: var(--muted);
  font-size: 14px;
  font-style: normal;
}

.download-words b {
  grid-column: 1 / -1;
  margin-top: 15px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
}

.download-words b i {
  transition: transform .2s ease;
}

.download-words > a:hover b i {
  transform: translateX(5px);
}

.how-section {
  padding: 145px max(22px, calc((100vw - var(--max)) / 2 + 39px));
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 100px;
  align-items: center;
  color: var(--white);
  background: var(--ink);
}

.how-copy > p {
  max-width: 760px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, .68);
  font-size: 17px;
  line-height: 1.9;
}

.how-steps {
  margin: 45px 0 0;
  padding: 0;
  display: grid;
  gap: 31px;
  list-style: none;
}

.how-steps li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
}

.how-steps li > span {
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .13em;
}

.how-steps h3 {
  margin: 0 0 8px;
  font-size: 23px;
}

.how-steps p {
  margin: 0;
  color: rgba(255, 255, 255, .66);
  line-height: 1.8;
}

.how-media {
  margin: 0;
  min-height: 550px;
  display: grid;
  place-items: center;
  background: var(--red);
  clip-path: ellipse(49% 46% at 50% 50%);
}

.how-media img {
  width: 88%;
  max-height: 520px;
  object-fit: contain;
}

.scene-section {
  padding: 145px 0 150px;
  display: grid;
  grid-template-columns: .78fr 1.22fr;
  gap: 105px;
  align-items: start;
}

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

.scene-copy {
  display: grid;
  gap: 52px;
}

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

.scene-copy h3 {
  margin: 11px 0 10px;
  font-size: 27px;
}

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

.scene-media {
  grid-column: 1 / -1;
  margin: 15px 0 0;
  min-height: 520px;
  display: grid;
  place-items: center;
  background: var(--ice);
  clip-path: polygon(5% 0, 94% 4%, 100% 44%, 87% 98%, 13% 100%, 0 61%);
}

.scene-media img {
  width: min(90%, 860px);
  max-height: 490px;
  object-fit: contain;
}

.service-section {
  padding: 135px max(22px, calc((100vw - var(--max)) / 2 + 39px));
  display: grid;
  grid-template-columns: .94fr 1.06fr;
  gap: 100px;
  align-items: center;
  color: var(--white);
  background: var(--red);
}

.service-media {
  margin: 0;
  min-height: 540px;
  display: grid;
  place-items: center;
  background: var(--paper);
  clip-path: circle(48% at 50% 50%);
}

.service-media img {
  width: 88%;
  max-height: 510px;
  object-fit: contain;
}

.service-copy > p {
  max-width: 760px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, .76);
  font-size: 17px;
  line-height: 1.9;
}

.service-points {
  margin-top: 40px;
  display: grid;
  gap: 23px;
}

.service-points p {
  margin: 0;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  color: rgba(255, 255, 255, .78);
  line-height: 1.75;
}

.service-points strong {
  color: var(--ice);
}

.service-copy > a {
  margin-top: 34px;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ice);
  font-weight: 900;
}

.service-copy > a i {
  transition: transform .2s ease;
}

.service-copy > a:hover i {
  transform: translateX(5px);
}

.status-section {
  padding: 140px 0 145px;
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 100px;
}

.status-copy {
  display: grid;
  gap: 33px;
}

.status-copy p {
  margin: 0;
}

.status-copy strong,
.status-copy span {
  display: block;
}

.status-copy strong {
  font-size: 24px;
}

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

.faq-section {
  padding: 145px max(22px, calc((100vw - var(--max)) / 2 + 39px));
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 120px;
  align-items: start;
  color: var(--white);
  background: var(--ink);
}

.faq-heading {
  position: sticky;
  top: 100px;
}

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

.faq-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;
}

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

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

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

.faq-list p {
  max-width: 760px;
  margin: 14px 0 0;
  color: rgba(255, 255, 255, .66);
  line-height: 1.85;
}

.closing-section {
  min-height: 500px;
  padding: 90px 24px 90px 102px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  background: var(--red);
}

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

.closing-section h2 {
  max-width: 930px;
  margin: 0;
  font-size: clamp(56px, 7vw, 102px);
  line-height: .98;
  letter-spacing: -.075em;
  font-weight: 900;
}

.closing-section a {
  min-height: 62px;
  margin-top: 40px;
  padding: 0 34px;
  font-size: 17px;
}

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

.footer {
  width: 100%;
  min-height: 126px;
  padding: 0 max(22px, calc((100vw - var(--max)) / 2 + 39px));
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 38px;
  color: var(--white);
  background: var(--red-dark);
  font-size: 13px;
}

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

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

@media (max-width: 1040px) {
  .edition-rail {
    display: none;
  }

  .masthead,
  .frontpage,
  .download-section,
  .scene-section,
  .status-section {
    width: min(calc(100% - 44px), var(--max));
  }

  .masthead {
    grid-template-columns: auto 1fr auto auto;
    gap: 16px;
  }

  .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(--white);
    background: rgba(23, 23, 23, .98);
    backdrop-filter: blur(18px);
  }

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

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

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

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

  .front-media {
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
  }

  .front-stamp {
    right: 4%;
    bottom: 2%;
  }

  .how-section,
  .scene-section,
  .service-section,
  .status-section,
  .faq-section {
    grid-template-columns: 1fr;
  }

  .how-section,
  .service-section,
  .faq-section {
    padding-left: max(22px, calc((100vw - var(--max)) / 2));
    padding-right: max(22px, calc((100vw - var(--max)) / 2));
  }

  .how-media,
  .service-media {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
  }

  .scene-heading,
  .faq-heading {
    position: static;
  }

  .closing-section {
    padding-left: 24px;
  }

  .footer {
    padding-left: max(22px, calc((100vw - var(--max)) / 2));
    padding-right: max(22px, calc((100vw - var(--max)) / 2));
  }
}

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

  .header-download {
    display: none;
  }

  .frontpage,
  .download-section,
  .scene-section,
  .status-section {
    width: min(calc(100% - 30px), var(--max));
  }

  .frontpage {
    margin-top: 0;
    margin-bottom: 35px;
    gap: 35px;
  }

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

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

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

  .primary-download {
    width: 100%;
  }

  .front-link {
    justify-content: center;
  }

  .front-media {
    min-height: 390px;
  }

  .front-media::before {
    width: 100%;
  }

  .front-media::after {
    width: 110px;
    height: 110px;
  }

  .front-media img {
    max-height: 370px;
  }

  .front-stamp {
    width: 125px;
    height: 125px;
    right: 0;
  }

  .front-stamp strong {
    font-size: 48px;
  }

  .download-section,
  .scene-section,
  .status-section {
    padding-top: 84px;
    padding-bottom: 92px;
  }

  .download-words {
    margin-top: 55px;
    grid-template-columns: 1fr;
    gap: 53px;
  }

  .how-section {
    padding-top: 95px;
    padding-bottom: 100px;
    gap: 48px;
  }

  .how-media,
  .service-media {
    min-height: 350px;
  }

  .scene-section {
    gap: 52px;
  }

  .scene-media {
    min-height: 340px;
  }

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

  .service-points p {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .status-section {
    gap: 52px;
  }

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

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

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

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

  .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;
  }
}