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

:root {
  --ink: #13233b;
  --navy: #13233b;
  --navy-deep: #0c1728;
  --apricot: #efa36d;
  --aqua: #ccebe7;
  --lemon: #f5e59c;
  --lavender: #d8d3f3;
  --cream: #fff5df;
  --rust: #b84a32;
  --muted: #625d5a;
  --max: 1260px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

button {
  font: inherit;
}

.site-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: 30;
}

.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;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 31px;
  color: rgba(19, 35, 59, .75);
  font-size: 14px;
  font-weight: 700;
}

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

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

.head-download,
.main-download,
.final-cta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--cream);
  background: var(--navy);
  border-radius: 999px;
  font-weight: 900;
  transition: transform .2s ease, box-shadow .2s ease;
}

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

.head-download:hover,
.main-download:hover,
.final-cta a:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 38px rgba(12, 23, 40, .22);
}

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

.hero {
  width: min(calc(100% - 44px), 1420px);
  min-height: 730px;
  margin: 18px auto 82px;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  gap: 72px;
}

.hero-copy {
  padding-left: clamp(0px, 4vw, 76px);
}

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

.section-tag.pale {
  color: var(--lemon);
}

.hero h1 {
  max-width: 700px;
  margin: 0;
  font-size: clamp(58px, 6.8vw, 100px);
  line-height: .96;
  letter-spacing: -.076em;
  font-weight: 900;
}

.hero h1 span {
  color: var(--cream);
}

.lead {
  max-width: 650px;
  margin: 33px 0 0;
  color: rgba(19, 35, 59, .72);
  font-size: 18px;
  line-height: 1.95;
}

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

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

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

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

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

.hero-note {
  max-width: 640px;
  margin: 25px 0 0;
  color: rgba(19, 35, 59, .6);
  font-size: 13px;
  line-height: 1.75;
}

.hero-media {
  min-height: 630px;
  margin: 0;
  display: grid;
  place-items: center;
  position: relative;
}

.hero-media::before {
  content: "";
  position: absolute;
  width: 94%;
  aspect-ratio: 1.13;
  background: var(--aqua);
  clip-path: polygon(6% 1%, 94% 5%, 100% 43%, 87% 98%, 14% 100%, 0 61%);
}

.hero-media::after {
  content: "";
  position: absolute;
  width: 175px;
  height: 175px;
  right: 2%;
  top: 7%;
  background: var(--lemon);
  border-radius: 50%;
}

.hero-media img {
  width: min(93%, 820px);
  max-height: 600px;
  object-fit: contain;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 35px 42px rgba(19, 35, 59, .22));
}

.download,
.membership,
.maintenance,
.faq {
  width: min(calc(100% - 44px), var(--max));
  margin-left: auto;
  margin-right: auto;
}

.download {
  padding: 100px 0 140px;
}

.download-title {
  max-width: 850px;
}

.download-title h2,
.connection-title h2,
.membership-copy h2,
.maintenance-title h2,
.before-title h2,
.faq-title h2 {
  margin: 0;
  font-size: clamp(44px, 5.3vw, 76px);
  line-height: 1.07;
  letter-spacing: -.064em;
  font-weight: 900;
}

.download-title > p:last-child,
.membership-copy > p {
  max-width: 750px;
  margin: 24px 0 0;
  color: rgba(19, 35, 59, .68);
  font-size: 17px;
  line-height: 1.9;
}

.platform-list {
  margin-top: 82px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 64px 110px;
}

.platform-list > a {
  min-width: 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 7px 24px;
  align-items: end;
}

.platform-list span {
  font-size: clamp(45px, 5.2vw, 73px);
  line-height: .96;
  letter-spacing: -.065em;
  font-weight: 900;
}

.platform-list > a > i {
  grid-column: 2;
  grid-row: 1 / span 2;
  color: var(--rust);
  font-size: 43px;
}

.platform-list em {
  color: rgba(19, 35, 59, .62);
  font-size: 14px;
  font-style: normal;
}

.platform-list b {
  grid-column: 1 / -1;
  margin-top: 17px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
}

.platform-list b i {
  transition: transform .2s ease;
}

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

.connection {
  padding: 145px max(22px, calc((100vw - var(--max)) / 2));
  color: var(--cream);
  background: var(--navy);
  clip-path: polygon(0 5%, 90% 0, 100% 9%, 96% 95%, 14% 100%, 0 91%);
}

.connection-title {
  max-width: 880px;
}

.connection-title > p:last-child {
  max-width: 760px;
  margin: 24px 0 0;
  color: rgba(255, 245, 223, .7);
  font-size: 17px;
  line-height: 1.9;
}

.connection-visuals {
  margin-top: 80px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 75px;
}

.connection-visuals figure {
  margin: 0;
  text-align: center;
}

.connection-visuals img {
  width: min(100%, 520px);
  aspect-ratio: 1;
  margin: 0 auto;
  object-fit: cover;
  filter: drop-shadow(0 28px 35px rgba(0, 0, 0, .3));
}

.connection-visuals figure:first-child img {
  background: var(--lemon);
  clip-path: circle(48% at 50% 50%);
}

.connection-visuals figure:last-child img {
  background: var(--lavender);
  clip-path: polygon(7% 1%, 93% 4%, 100% 43%, 87% 98%, 15% 100%, 0 62%);
}

.connection-visuals figcaption {
  margin-top: 18px;
  color: rgba(255, 245, 223, .72);
  font-size: 14px;
  font-weight: 800;
}

.connection-steps {
  margin: 82px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 76px;
  list-style: none;
}

.connection-steps li > span {
  display: block;
  margin-bottom: 24px;
  color: var(--lemon);
  font-size: 90px;
  line-height: .78;
  font-weight: 900;
  letter-spacing: -.08em;
}

.connection-steps h3 {
  margin: 0 0 13px;
  font-size: 24px;
}

.connection-steps p {
  margin: 0;
  color: rgba(255, 245, 223, .68);
  line-height: 1.85;
}

.membership {
  padding: 145px 0 150px;
  display: grid;
  grid-template-columns: .94fr 1.06fr;
  gap: 100px;
  align-items: center;
}

.membership-notes {
  margin-top: 41px;
  display: grid;
  gap: 24px;
}

.membership-notes p {
  margin: 0;
  display: grid;
  grid-template-columns: 125px 1fr;
  gap: 18px;
  color: rgba(19, 35, 59, .68);
  line-height: 1.75;
}

.membership-notes strong {
  color: var(--rust);
}

.membership-media {
  margin: 0;
  min-height: 570px;
  display: grid;
  place-items: center;
  background: var(--lemon);
  clip-path: ellipse(49% 46% at 50% 50%);
}

.membership-media img {
  width: 100%;
  max-height: 540px;
  object-fit: contain;
}

.maintenance {
  padding: 145px 0 150px;
}

.maintenance-title {
  max-width: 870px;
}

.maintenance-title > p:last-child {
  max-width: 750px;
  margin: 24px 0 0;
  color: rgba(19, 35, 59, .68);
  font-size: 17px;
  line-height: 1.9;
}

.maintenance-flow {
  margin-top: 82px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 72px;
}

.maintenance-flow article > span {
  color: var(--rust);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .15em;
}

.maintenance-flow h3 {
  margin: 11px 0 11px;
  font-size: 26px;
}

.maintenance-flow p {
  margin: 0;
  color: rgba(19, 35, 59, .68);
  line-height: 1.85;
}

.before-use {
  padding: 135px max(22px, calc((100vw - var(--max)) / 2));
  display: grid;
  grid-template-columns: .78fr 1.22fr;
  gap: 105px;
  color: var(--navy);
  background: var(--aqua);
}

.before-notes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 46px 60px;
}

.before-notes p {
  margin: 0;
}

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

.before-notes strong {
  font-size: 23px;
}

.before-notes span {
  margin-top: 9px;
  color: rgba(19, 35, 59, .68);
  line-height: 1.8;
}

.faq {
  padding: 145px 0 155px;
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 120px;
  align-items: start;
}

.faq-title {
  position: sticky;
  top: 95px;
}

.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(--rust);
  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(19, 35, 59, .68);
  line-height: 1.85;
}

.final-cta {
  min-height: 500px;
  padding: 90px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--cream);
  background: var(--rust);
}

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

.final-cta h2 {
  max-width: 930px;
  margin: 0;
  font-size: clamp(52px, 7vw, 98px);
  line-height: 1;
  letter-spacing: -.075em;
  font-weight: 900;
}

.final-cta a {
  min-height: 62px;
  margin-top: 40px;
  padding: 0 34px;
  color: var(--navy);
  background: var(--lemon);
  font-size: 17px;
}

.final-cta > span {
  margin-top: 19px;
  color: rgba(255, 245, 223, .62);
  font-size: 13px;
}

.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(--cream);
  background: var(--navy-deep);
  font-size: 13px;
}

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

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

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

  .main-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(--cream);
    background: rgba(19, 35, 59, .98);
    backdrop-filter: blur(18px);
  }

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

  .nav-switch {
    display: grid;
    place-items: center;
  }

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

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

  .hero-copy {
    max-width: 850px;
  }

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

  .membership,
  .before-use,
  .faq {
    grid-template-columns: 1fr;
  }

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

  .faq-title {
    position: static;
  }
}

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

  .head-download {
    display: none;
  }

  .hero,
  .download,
  .membership,
  .maintenance,
  .faq {
    width: min(calc(100% - 30px), var(--max));
  }

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

  .hero-copy {
    padding-left: 0;
  }

  .hero h1 {
    font-size: clamp(51px, 14.7vw, 71px);
  }

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

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

  .main-download {
    width: 100%;
  }

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

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

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

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

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

  .download,
  .membership,
  .maintenance,
  .faq {
    padding-top: 84px;
    padding-bottom: 92px;
  }

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

  .connection {
    padding-top: 105px;
    padding-bottom: 115px;
    clip-path: polygon(0 2%, 90% 0, 100% 3%, 97% 98%, 14% 100%, 0 96%);
  }

  .connection-visuals {
    margin-top: 55px;
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .connection-steps {
    margin-top: 58px;
    grid-template-columns: 1fr;
    gap: 55px;
  }

  .connection-steps li > span {
    margin-bottom: 20px;
    font-size: 76px;
  }

  .membership {
    gap: 48px;
  }

  .membership-notes p {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .membership-media {
    min-height: 360px;
  }

  .maintenance-flow {
    margin-top: 58px;
    grid-template-columns: 1fr;
    gap: 47px;
  }

  .before-use {
    padding-top: 90px;
    padding-bottom: 95px;
    gap: 52px;
  }

  .before-notes {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .faq {
    gap: 52px;
  }

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

  .final-cta {
    min-height: 430px;
    padding: 75px 20px;
  }

  .final-cta 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;
  }
}