:root {
  --ink:#172b66;
  --blue:#09b5f0;
  --violet:#6124dd;
  --paper:#f7f9ff;
  --line:#d8e2f4;
  --dark:#101844;
  --pink:#f743a7;
  --lime:#b6f52b
}
* {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth
}
body {
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:"Microsoft YaHei",Arial,sans-serif;
  line-height:1.7
}
a {
  color:inherit;
  text-decoration:none
}
.shell {
  width:min(1160px,calc(100% - 48px));
  margin:auto
}
.site-header {
  position:fixed;
  z-index:30;
  top:0;
  left:0;
  width:100%;
  background:rgba(247,249,255,.95);
  border-bottom:1px solid var(--line)
}
.nav-wrap {
  display:flex;
  align-items:center;
  gap:34px;
  height:74px
}
.brand {
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:17px;
  font-weight:900;
  white-space:nowrap
}
.brand img {
  width:46px;
  height:46px;
  padding:3px;
  border-radius:5px;
  background:#f1f4ff
}
.site-header .brand-copy {
  display:grid;
  gap:4px;
  line-height:1.1
}
.site-header .brand-copy b {
  font-size:17px;
  letter-spacing:-.3px
}
.site-header .brand-copy small {
  color:#4f5f89;
  font-size:12px;
  font-weight:600;
  letter-spacing:.1px
}
.desktop-nav {
  display:flex;
  gap:21px;
  margin-left:auto;
  font-size:13px;
  font-weight:800
}
.desktop-nav a {
  padding:25px 0
}
.desktop-nav ul {
  display:flex;
  gap:21px;
  margin:0;
  padding:0;
  list-style:none
}
.nav-actions {
  display:flex;
  gap:12px
}
.nav-download {
  padding:10px 17px;
  border-radius:5px;
  color:#fff;
  background:var(--violet);
  font-size:14px;
  font-weight:900
}
.menu-toggle {
  display:none;
  width:39px;
  height:39px;
  padding:9px;
  border:1px solid var(--ink);
  border-radius:5px;
  background:transparent
}
.menu-toggle i {
  display:block;
  height:2px;
  margin:4px 0;
  background:var(--ink)
}
.mobile-nav {
  display:none
}
.mobile-nav ul {
  margin:0;
  padding:0;
  list-style:none
}
.hero {
  position:relative;
  padding:145px 0 88px;
  overflow:hidden;
  background:linear-gradient(115deg,#eef5ff 0 54%,#251258 54%)
}
.hero:before {
  position:absolute;
  inset:0 0 0 55%;
  content:"";
  background-image:linear-gradient(rgba(255,255,255,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.1) 1px,transparent 1px);
  background-size:34px 34px
}
.hero-layout {
  position:relative;
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  align-items:center;
  gap:70px
}
.eyebrow {
  margin:0 0 12px;
  color:var(--violet);
  font:800 12px/1 Arial;
  letter-spacing:2px
}
.hero h1 {
  margin:0 0 27px;
  font-size:clamp(49px,6.5vw,83px);
  font-weight:900;
  line-height:1;
  letter-spacing:-4px
}
.hero-intro {
  max-width:520px;
  margin:0;
  color:#3e4d75;
  font-size:17px;
  line-height:2
}
.hero-actions {
  margin-top:28px
}
.button {
  display:inline-flex;
  gap:38px;
  align-items:center;
  justify-content:space-between;
  padding:15px 18px 15px 22px;
  border-radius:5px;
  font-weight:900
}
.button b {
  font-size:22px
}
.hero-download {
  color:#fff;
  background:var(--violet)
}
.age-label {
  display:block;
  margin:12px 0 0;
  color:#596689;
  font-size:13px
}
.hero-tip {
  margin-top:32px;
  color:#40517b;
  font-size:12px;
  font-weight:700
}
.skin-stage {
  position:relative;
  display:grid;
  height:510px;
  place-items:center
}
.light-beam {
  position:absolute;
  width:370px;
  height:370px;
  border-radius:50%;
  filter:blur(3px)
}
.beam-a {
  background:rgba(9,181,240,.3);
  transform:translate(-60px,-70px)
}
.beam-b {
  background:rgba(247,67,167,.27);
  transform:translate(70px,70px)
}
.skin-console {
  position:relative;
  z-index:1;
  width:390px;
  border:1px solid rgba(255,255,255,.55);
  border-radius:6px;
  color:#fff;
  background:rgba(18,14,66,.9);
  box-shadow:20px 25px 0 rgba(7,4,30,.25);
  overflow:hidden
}
.skin-console header {
  display:flex;
  justify-content:space-between;
  padding:17px 19px;
  border-bottom:1px solid rgba(255,255,255,.17);
  font-size:11px;
  font-weight:800
}
.skin-console header b {
  color:var(--lime)
}
.skin-preview {
  padding:20px;
  text-align:center
}
.avatar-shape {
  position:relative;
  width:125px;
  height:130px;
  margin:auto;
  border:3px solid #bd99ff;
  border-radius:50% 50% 25% 25%;
  background:linear-gradient(145deg,#7240ef,#f743a7);
  box-shadow:0 0 0 13px rgba(154,103,255,.16)
}
.avatar-shape:before {
  position:absolute;
  top:20px;
  left:38px;
  width:45px;
  height:45px;
  border-radius:50%;
  content:"";
  background:#f4c6b8
}
.avatar-shape i {
  position:absolute;
  width:34px;
  height:54px;
  border-radius:16px;
  background:#252050
}
.avatar-shape i:nth-child(1) {
  left:19px;
  bottom:10px
}
.avatar-shape i:nth-child(2) {
  right:19px;
  bottom:10px
}
.avatar-shape i:nth-child(3) {
  left:48px;
  bottom:3px;
  width:30px;
  height:63px;
  background:#3d2282
}
.skin-preview p {
  margin:19px 0 2px;
  font-size:16px;
  font-weight:900
}
.skin-preview small {
  color:#bdb7d8;
  font-size:10px
}
.skin-tabs {
  display:flex;
  padding:5px 15px;
  background:rgba(255,255,255,.08)
}
.skin-tab {
  flex:1;
  padding:9px 0;
  border:0;
  border-bottom:2px solid transparent;
  color:#cbc4e2;
  background:transparent;
  font-weight:800;
  cursor:pointer
}
.skin-tab.is-active {
  border-color:var(--lime);
  color:#fff
}
.skin-meta {
  display:flex;
  justify-content:space-between;
  padding:16px 20px;
  color:#cbc4e2;
  font-size:11px
}
.skin-meta b {
  color:var(--lime)
}
.skin-select {
  display:flex;
  justify-content:space-between;
  width:calc(100% - 40px);
  padding:11px;
  margin:0 20px 20px;
  border:0;
  border-radius:4px;
  color:#192043;
  background:var(--lime);
  font-weight:900
}
.skin-tip {
  position:absolute;
  right:0;
  bottom:-7px;
  color:#d1c8ed;
  font-size:11px;
  font-weight:700
}
.skin-tip i {
  display:inline-block;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--pink)
}
.section-heading h2,.review-heading h2,.download-section h2 {
  margin:0;
  font-size:clamp(38px,5vw,62px);
  font-weight:900;
  line-height:1;
  letter-spacing:-3px
}
.section-heading>p:not(.eyebrow) {
  max-width:480px;
  margin:18px 0 0;
  color:#657192
}
.features-section {
  padding:105px 0;
  background:#fff
}
.feature-grid {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  margin-top:58px;
  border-top:1px solid var(--ink)
}
.feature-grid article {
  min-height:265px;
  padding:23px;
  border-right:1px solid var(--line)
}
.feature-grid article:first-child {
  border-left:1px solid var(--line)
}
.feature-grid span {
  color:var(--violet);
  font:900 12px Arial
}
.feature-grid h3 {
  margin:50px 0 10px;
  font-size:19px
}
.feature-grid p {
  margin:0;
  color:#5f6a85;
  font-size:14px
}
.sets-section {
  padding:106px 0;
  color:#fff;
  background:#17104a
}
.sets-section .eyebrow {
  color:var(--lime)
}
.split-heading,.review-heading {
  display:flex;
  align-items:end;
  justify-content:space-between
}
.split-heading>p:not(.eyebrow),.review-heading>p {
  max-width:360px;
  margin:0
}
.set-grid {
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  grid-template-rows:210px 210px;
  gap:18px;
  margin-top:49px
}
.set-grid figure {
  position:relative;
  margin:0;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  border-radius:8px;
  background:#0e0938
}
.set-grid img {
  width:100%;
  height:100%;
  object-fit:contain;
  background:#0e0938
}
.set-grid figcaption {
  position:absolute;
  bottom:0;
  left:0;
  padding:7px 10px;
  color:#fff;
  background:rgba(12,8,47,.82);
  font-size:11px;
  font-weight:700
}
.set-large {
  grid-column:span 5;
  grid-row:span 2
}
.set-grid figure:nth-child(2) {
  grid-column:span 4
}
.set-grid figure:nth-child(3) {
  grid-column:span 3
}
.set-grid figure:nth-child(4) {
  grid-column:span 7
}
.screens-section {
  padding:106px 0;
  background:#f1f6ff
}
.screens-scroll {
  margin-top:47px
}
.screens-grid {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px
}
.screens-grid figure {
  margin:0;
  padding:12px;
  border:1px solid var(--line);
  border-radius:5px;
  background:#fff
}
.screens-grid img {
  display:block;
  width:100%;
  height:auto;
  border-radius:3px;
  object-fit:contain
}
.screens-grid figcaption {
  margin-top:11px;
  color:#425174;
  font-size:12px;
  font-weight:700
}
.faq-section {
  padding:108px 0;
  background:#fff
}
.faq-layout {
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:105px
}
.faq-list {
  border-top:1px solid var(--ink)
}
.faq-list article {
  border-bottom:1px solid var(--line)
}
.faq-list button {
  display:flex;
  justify-content:space-between;
  width:100%;
  padding:21px 0;
  border:0;
  background:transparent;
  font:800 17px inherit;
  text-align:left
}
.faq-list button b {
  font-size:25px;
  font-weight:400
}
.faq-list article>div {
  display:grid;
  grid-template-rows:0fr
}
.faq-list article.is-open>div {
  grid-template-rows:1fr
}
.faq-list article p {
  margin:0;
  overflow:hidden;
  color:#5f6a85;
  font-size:14px
}
.faq-list article.is-open p {
  padding:0 30px 20px 0
}
.review-section {
  padding:105px 0;
  color:#fff;
  background:#241243
}
.review-section .eyebrow {
  color:var(--lime)
}
.review-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  margin-top:50px
}
.review-grid article {
  display:flex;
  flex-direction:column;
  min-height:272px;
  padding:23px;
  border-top:4px solid var(--pink);
  border-radius:5px;
  color:#182757;
  background:#fff
}
.review-grid article:nth-child(2),.review-grid article:nth-child(5) {
  border-top-color:var(--lime)
}
.review-grid header {
  display:flex;
  gap:9px;
  align-items:center;
  font-size:14px
}
.review-grid header i {
  width:35px;
  height:35px;
  border-radius:50%;
  background:var(--pink) url('../icons/avatar.svg') center/20px no-repeat
}
.review-grid header span {
  margin-left:auto;
  color:var(--pink);
  font-size:12px
}
.review-grid article>p {
  margin:20px 0;
  font-size:13px;
  line-height:1.85
}
.review-grid footer {
  margin-top:auto;
  color:#69718a;
  font-size:11px;
  text-align:right
}
.download-section {
  padding:92px 0;
  color:#fff;
  background:linear-gradient(110deg,#06b6ee,#6124dd)
}
.download-section .eyebrow {
  color:#e4ff73
}
.download-section p:not(.eyebrow) {
  margin:14px 0 0;
  color:#e7e4ff
}
.download-layout {
  display:flex;
  align-items:center;
  justify-content:space-between
}
.download-button {
  min-width:190px;
  color:#fff;
  background:#19114b;
  box-shadow:7px 7px 0 rgba(18,9,58,.27)
}
.download-button small {
  display:block;
  margin-top:4px;
  color:#cfc8ee;
  font-size:9px
}
.back-to-top {
  position:fixed;
  z-index:25;
  right:26px;
  bottom:25px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  width:52px;
  height:52px;
  border-radius:5px;
  color:#fff;
  background:var(--violet);
  opacity:0;
  visibility:hidden;
  pointer-events:none
}
.back-to-top.is-visible {
  opacity:1;
  visibility:visible;
  pointer-events:auto
}
.back-to-top span {
  font-size:20px
}
.back-to-top b {
  font-size:9px
}
.site-footer {
  padding:17px 0;
  color:#fff;
  background:#080717;
  border-top:1px solid rgba(182,245,43,.55)
}
.footer-layout {
  display:grid;
  grid-template-columns:1fr auto 1fr;
  gap:35px;
  align-items:center;
  min-height:62px
}
.footer-brand img {
  width:43px;
  height:43px;
  filter:invert(1)
}
.footer-brand small {
  display:block;
  color:#9490ad;
  font-size:10px
}
.footer-map {
  display:flex;
  gap:19px
}
.footer-map a {
  font-size:12px;
  font-weight:800
}
.footer-copyright {
  margin:0;
  color:#a9a6ba;
  font-size:12px;
  text-align:right;
  white-space:nowrap
}
@media(max-width:800px) {
  .shell {
    width:min(100% - 30px,590px)
  }
  .nav-wrap {
    height:65px;
    gap:10px
  }
  .brand {
    font-size:14px
  }
  .brand img {
    width:37px;
    height:37px
  }
  .desktop-nav {
    display:none
  }
  .nav-actions {
    margin-left:auto
  }
  .nav-download {
    padding:9px 13px;
    font-size:13px
  }
  .menu-toggle {
    display:block
  }
  .mobile-nav {
    padding:10px 15px;
    background:var(--paper)
  }
  .mobile-nav.is-open {
    display:block
  }
  .mobile-nav ul {
    display:grid;
    gap:6px
  }
  .mobile-nav a {
    display:block;
    padding:9px;
    border:1px solid var(--line);
    font-size:13px;
    font-weight:800
  }
  .hero {
    padding:92px 0 52px;
    background:#eef5ff
  }
  .hero:before {
    display:none
  }
  .hero-layout {
    grid-template-columns:1fr;
    gap:28px
  }
  .hero-copy {
    max-width:560px;
    margin:auto;
    text-align:center
  }
  .hero h1 {
    font-size:50px;
    letter-spacing:-3px
  }
  .hero-intro {
    max-width:390px;
    margin:auto;
    font-size:15px;
    line-height:1.9
  }
  .age-label {
    width:max-content;
    margin:12px auto
  }
  .skin-stage {
    width:100%;
    height:440px;
    border-radius:16px;
    background:linear-gradient(145deg,#17104a,#30206c)
  }
  .skin-console {
    width:calc(100% - 26px);
    max-width:390px;
    transform:none
  }
  .skin-tip {
    right:0
  }
  .features-section,.sets-section,.screens-section,.faq-section,.review-section {
    padding:70px 0
  }
  .feature-grid {
    grid-template-columns:repeat(2,1fr);
    margin-top:35px
  }
  .feature-grid article {
    min-height:220px;
    border-bottom:1px solid var(--line)
  }
  .feature-grid article:nth-child(3) {
    border-left:1px solid var(--line)
  }
  .feature-grid h3 {
    margin-top:32px;
    font-size:17px
  }
  .split-heading,.review-heading,.download-layout {
    display:block
  }
  .split-heading>p:not(.eyebrow),.review-heading>p {
    margin:18px 0 0
  }
  .set-grid {
    grid-template-columns:1fr 1fr;
    grid-template-rows:285px 150px 170px;
    gap:12px;
    margin-top:30px
  }
  .set-large {
    grid-column:span 2;
    grid-row:auto
  }
  .set-grid figure:nth-child(2),.set-grid figure:nth-child(3) {
    grid-column:span 1
  }
  .set-grid figure:nth-child(4) {
    grid-column:span 2
  }
  .screens-scroll {
    margin-top:31px;
    overflow-x:auto;
    scroll-snap-type:x mandatory
  }
  .screens-grid {
    display:flex;
    gap:12px;
    width:max-content
  }
  .screens-grid figure {
    flex:0 0 74vw;
    width:74vw;
    scroll-snap-align:start
  }
  .faq-layout {
    grid-template-columns:1fr;
    gap:38px
  }
  .review-grid {
    grid-template-columns:1fr;
    gap:11px;
    margin-top:33px
  }
  .review-grid article {
    min-height:0
  }
  .download-section {
    text-align:center
  }
  .download-layout .button {
    margin:27px auto 0
  }
  .back-to-top {
    right:15px;
    bottom:15px
  }
  .footer-layout {
    grid-template-columns:1fr;
    justify-items:center;
    text-align:center
  }
  .footer-brand {
    justify-content:center
  }
  .footer-map {
    flex-wrap:wrap;
    justify-content:center;
    max-width:280px
  }
  .footer-copyright {
    text-align:center;
    white-space:normal
  }
  a,button {
    -webkit-tap-highlight-color:transparent
  }
}
@media(max-width:390px) {
  .brand {
    gap:6px
  }
  .brand img {
    width:36px;
    height:36px
  }
  .site-header .brand-copy b {
    font-size:13px
  }
  .site-header .brand-copy small {
    font-size:10px
  }
  .hero h1 {
    font-size:45px
  }
  .skin-stage {
    height:410px;
    margin:0
  }
  .skin-console {
    width:calc(100% - 22px)
  }
  .set-grid {
    grid-template-rows:250px 135px 155px
  }
  .screens-grid figure {
    flex-basis:78vw;
    width:78vw
  }
}