:root {
  --ink: #06130f;
  --ink-soft: #0c211a;
  --ink-card: #102a21;
  --lime: #d9ffb4;
  --lime-bright: #bdfc78;
  --pink: #ef6681;
  --cream: #f7f5ee;
  --paper: #fbfaf6;
  --sage: #afc0b8;
  --line: rgba(16, 42, 33, 0.14);
  --white-line: rgba(255, 255, 255, 0.12);
  --shadow: 0 30px 80px rgba(0, 20, 14, 0.18);
  --radius: 24px;
  --container: 1180px;
  --display: "Arial Rounded MT Bold", "Microsoft YaHei UI", "PingFang SC", sans-serif;
  --body: "Microsoft YaHei UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

body.modal-open {
  overflow: hidden;
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
  height: auto;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 999;
  padding: 10px 16px;
  border-radius: 10px;
  color: var(--ink);
  background: var(--lime);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 100;
  color: #fff;
}

.header-inner {
  min-height: 92px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
  border-bottom: 1px solid var(--white-line);
}

.brand {
  width: max-content;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand img,
.footer-brand img,
.floating-download img {
  flex: 0 0 auto;
  border-radius: 13px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.brand span,
.footer-brand span,
.floating-download span {
  display: grid;
  line-height: 1.2;
}

.brand strong,
.footer-brand strong,
.floating-download strong {
  font-family: var(--display);
  letter-spacing: 0.04em;
}

.brand small {
  margin-top: 3px;
  color: var(--sage);
  font: 0.62rem/1.2 Arial, sans-serif;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.9rem;
}

.site-nav a {
  position: relative;
  transition: color 180ms ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  background: var(--lime);
  transform: scaleX(0);
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: #fff;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

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

.nav-toggle {
  display: none;
}

.button {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 14px;
  background: transparent;
  font-weight: 700;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button svg,
.text-link svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button-small {
  min-height: 44px;
  padding-inline: 18px;
  border-radius: 12px;
  font-size: 0.86rem;
}

.button-primary,
.header-download {
  color: var(--ink);
  background: var(--lime);
  box-shadow: 0 12px 34px rgba(189, 252, 120, 0.14);
}

.button-primary:hover,
.header-download:hover {
  background: var(--lime-bright);
  box-shadow: 0 16px 36px rgba(189, 252, 120, 0.2);
}

.hero {
  position: relative;
  min-height: 810px;
  overflow: hidden;
  color: #fff;
  background:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    var(--ink);
  background-size: 64px 64px;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 160px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.18));
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(20px);
  pointer-events: none;
}

.hero-glow-one {
  width: 560px;
  height: 560px;
  top: 84px;
  right: -80px;
  background: radial-gradient(circle, rgba(218, 255, 181, 0.21), rgba(218, 255, 181, 0) 68%);
}

.hero-glow-two {
  width: 400px;
  height: 400px;
  bottom: -200px;
  left: 12%;
  background: radial-gradient(circle, rgba(239, 102, 129, 0.16), rgba(239, 102, 129, 0) 70%);
}

.hero-grid {
  min-height: 810px;
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  align-items: center;
  gap: 54px;
  padding-top: 118px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-bottom: 44px;
}

.availability {
  width: max-content;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 30px;
  padding: 8px 12px;
  border: 1px solid rgba(217, 255, 180, 0.2);
  border-radius: 999px;
  color: var(--lime);
  background: rgba(217, 255, 180, 0.06);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}

.availability-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime-bright);
  box-shadow: 0 0 0 5px rgba(189, 252, 120, 0.1);
  animation: breathe 2.2s ease-in-out infinite;
}

.hero-kicker,
.section-kicker,
.section-heading > p,
.download-copy > p {
  margin: 0 0 12px;
  color: var(--pink);
  font: 700 0.72rem/1.2 Arial, sans-serif;
  letter-spacing: 0.18em;
}

.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.5rem, 6.2vw, 6.4rem);
  line-height: 0.98;
  letter-spacing: -0.07em;
}

.hero h1 em {
  display: inline-block;
  color: var(--lime);
  font-size: 0.68em;
  font-style: normal;
  letter-spacing: -0.04em;
}

.hero-lead {
  max-width: 580px;
  margin: 28px 0 34px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 1.02rem;
  line-height: 1.9;
}

.hero-lead strong {
  color: #fff;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin: 28px 0 0;
  padding: 0;
  color: rgba(255, 255, 255, 0.76);
  list-style: none;
  font-size: 0.86rem;
}

.hero-points li {
  display: flex;
  align-items: center;
  gap: 7px;
}

.hero-points svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--lime);
  stroke-width: 2;
}

.hero-stage {
  position: relative;
  z-index: 1;
  min-height: 650px;
  display: grid;
  place-items: center;
}

.hero-stage::before {
  content: "";
  position: absolute;
  width: 490px;
  height: 490px;
  border: 1px solid rgba(217, 255, 180, 0.1);
  border-radius: 50%;
}

.hero-stage::after {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  animation: slow-spin 36s linear infinite;
}

.phone {
  position: relative;
  z-index: 4;
  width: 284px;
  height: 578px;
  padding: 11px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 42px;
  background: #111916;
  box-shadow: 0 44px 90px rgba(0, 0, 0, 0.46), inset 0 0 0 2px rgba(255, 255, 255, 0.05);
  transform: rotate(3deg);
}

.phone-top {
  position: absolute;
  top: 17px;
  left: 50%;
  z-index: 6;
  width: 82px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 99px;
  background: #070d0a;
  transform: translateX(-50%);
}

.phone-speaker {
  width: 28px;
  height: 4px;
  border-radius: 8px;
  background: #1b2b25;
}

.phone-camera {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #263f35;
}

.phone-screen {
  height: 100%;
  overflow: hidden;
  padding: 44px 16px 0;
  border-radius: 32px;
  background: #eff9e5;
}

.screen-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--ink);
}

.screen-header img {
  border-radius: 13px;
  box-shadow: 0 6px 16px rgba(7, 22, 17, 0.12);
}

.screen-header div {
  display: grid;
  line-height: 1.35;
}

.screen-header strong {
  font-size: 0.92rem;
}

.screen-header span {
  color: #66766f;
  font-size: 0.62rem;
}

.featured-poster {
  position: relative;
  height: 240px;
  overflow: hidden;
  padding: 18px;
  border-radius: 20px;
  color: #fff;
  background:
    radial-gradient(circle at 78% 24%, rgba(239, 102, 129, 0.7), transparent 26%),
    radial-gradient(circle at 70% 64%, rgba(217, 255, 180, 0.34), transparent 32%),
    linear-gradient(145deg, #152c27, #513141 75%, #cb6178);
}

.featured-poster::before,
.featured-poster::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.featured-poster::before {
  width: 150px;
  height: 150px;
  right: -38px;
  bottom: -46px;
}

.featured-poster::after {
  width: 82px;
  height: 82px;
  top: 42px;
  right: 30px;
}

.poster-tag {
  position: relative;
  z-index: 1;
  font-size: 0.56rem;
  letter-spacing: 0.14em;
}

.poster-title {
  position: relative;
  z-index: 1;
  margin-top: 18px;
  font-family: var(--display);
  font-size: 1.85rem;
  line-height: 1.1;
  letter-spacing: 0.06em;
}

.featured-poster button {
  position: absolute;
  bottom: 18px;
  left: 18px;
  z-index: 2;
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0 11px;
  border: 0;
  border-radius: 99px;
  color: var(--ink);
  background: var(--lime);
  font-size: 0.58rem;
  font-weight: 700;
}

.featured-poster button svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.screen-section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 16px 2px 9px;
  font-size: 0.65rem;
}

.screen-section-title span {
  color: #718078;
  font-size: 0.55rem;
}

.poster-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
}

.mini-poster {
  position: relative;
  height: 92px;
  overflow: hidden;
  border-radius: 10px;
}

.mini-poster::before {
  content: "";
  position: absolute;
  width: 50px;
  height: 50px;
  top: 10px;
  right: -12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
}

.mini-poster span {
  position: absolute;
  right: 5px;
  bottom: 7px;
  left: 7px;
  color: #fff;
  font-size: 0.52rem;
  font-weight: 700;
}

.poster-a {
  background: linear-gradient(145deg, #243c35, #5d8e7c);
}

.poster-b {
  background: linear-gradient(145deg, #8d5a63, #e68a75);
}

.poster-c {
  background: linear-gradient(145deg, #334761, #6c7594);
}

.screen-tabs {
  display: flex;
  justify-content: space-around;
  margin: 14px -16px 0;
  padding: 9px 4px;
  border-top: 1px solid rgba(6, 19, 15, 0.08);
  color: #839087;
  background: rgba(255, 255, 255, 0.46);
  font-size: 0.46rem;
}

.screen-tabs span {
  display: grid;
  place-items: center;
  gap: 3px;
}

.screen-tabs i {
  width: 14px;
  height: 3px;
  display: block;
  border-radius: 99px;
  background: currentColor;
}

.screen-tabs .active {
  color: var(--ink);
}

.film-orbit {
  position: absolute;
  z-index: 2;
}

.film-orbit span {
  position: absolute;
  display: block;
  border: 3px solid rgba(255, 255, 255, 0.84);
  border-radius: 5px;
  box-shadow: var(--shadow);
}

.film-orbit span::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 2px;
  background: linear-gradient(135deg, rgba(239, 102, 129, 0.9), rgba(6, 19, 15, 0.2)), #2b6754;
}

.film-orbit-one {
  width: 550px;
  height: 510px;
}

.film-orbit-one span:nth-child(1) {
  width: 86px;
  height: 116px;
  top: 18px;
  left: 38px;
  transform: rotate(-15deg);
}

.film-orbit-one span:nth-child(2) {
  width: 70px;
  height: 96px;
  top: 78px;
  right: 5px;
  transform: rotate(13deg);
}

.film-orbit-one span:nth-child(3) {
  width: 74px;
  height: 100px;
  right: 20px;
  bottom: 28px;
  transform: rotate(-10deg);
}

.film-orbit-one span:nth-child(4) {
  width: 62px;
  height: 84px;
  bottom: 24px;
  left: 36px;
  transform: rotate(12deg);
}

.film-orbit-two {
  z-index: 5;
  width: 390px;
  height: 560px;
  pointer-events: none;
}

.film-orbit-two span:nth-child(1) {
  width: 54px;
  height: 74px;
  top: 118px;
  left: -12px;
  transform: rotate(18deg);
}

.film-orbit-two span:nth-child(2) {
  width: 58px;
  height: 80px;
  top: 226px;
  right: -24px;
  transform: rotate(-14deg);
}

.film-orbit-two span:nth-child(3) {
  width: 50px;
  height: 68px;
  right: 12px;
  bottom: 34px;
  transform: rotate(16deg);
}

.version-card {
  position: absolute;
  z-index: 7;
  right: 10px;
  bottom: 75px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px 11px 11px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  background: rgba(16, 42, 33, 0.88);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(16px);
}

.android-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: var(--ink);
  background: var(--lime);
}

.android-mark svg {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.version-card > span:last-child {
  display: grid;
  line-height: 1.3;
}

.version-card small {
  color: var(--sage);
  font-size: 0.6rem;
}

.version-card strong {
  font-size: 0.88rem;
}

.facts {
  position: relative;
  z-index: 3;
  color: #fff;
  background: var(--ink-soft);
}

.seo-intro {
  padding: 72px 0 16px;
}

.seo-intro-inner {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: 70px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--line);
}

.seo-intro-label {
  padding-top: 9px;
  color: var(--pink);
  font: 700 0.7rem/1.2 Arial, sans-serif;
  letter-spacing: 0.18em;
}

.seo-intro h2 {
  margin: 0 0 16px;
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: -0.05em;
}

.seo-intro p {
  max-width: 760px;
  margin: 0;
  color: #65716b;
  font-size: 0.92rem;
  line-height: 1.9;
}

.seo-intro p strong {
  color: var(--ink);
}

.keyword-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.keyword-links a {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: var(--cream);
  font-size: 0.72rem;
  font-weight: 700;
}

.keyword-links a:hover {
  border-color: rgba(239, 102, 129, 0.35);
  color: #b43e58;
}

.fact-grid {
  min-height: 116px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
}

.fact-grid > div {
  display: grid;
  gap: 4px;
  padding: 8px 26px;
  border-left: 1px solid var(--white-line);
}

.fact-grid > div:last-child {
  border-right: 1px solid var(--white-line);
}

.fact-grid span {
  color: var(--sage);
  font-size: 0.67rem;
  letter-spacing: 0.08em;
}

.fact-grid strong {
  font-size: 0.92rem;
}

.section {
  padding: 120px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  align-items: end;
  gap: 24px 80px;
  margin-bottom: 54px;
}

.section-heading > p {
  grid-column: 1 / -1;
  margin-bottom: -10px;
}

.section-heading h2,
.install-copy h2,
.download-copy h2,
.faq-heading h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.5rem, 5vw, 4.7rem);
  line-height: 1.08;
  letter-spacing: -0.06em;
}

.section-heading > span {
  max-width: 520px;
  justify-self: end;
  color: #68756f;
  font-size: 0.92rem;
  line-height: 1.9;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
}

.feature-card {
  position: relative;
  min-height: 286px;
  overflow: hidden;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--cream);
}

.feature-card-large {
  grid-row: span 2;
  min-height: 590px;
  padding-bottom: 250px;
  color: #fff;
  background: var(--ink-card);
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  margin-bottom: 46px;
  border-radius: 15px;
  color: var(--ink);
  background: var(--lime);
}

.feature-card:not(.feature-card-large) .feature-icon {
  color: var(--pink);
  background: rgba(239, 102, 129, 0.1);
}

.feature-icon svg {
  width: 25px;
  height: 25px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-index {
  position: absolute;
  top: 34px;
  right: 34px;
  color: #8b9892;
  font: 700 0.7rem/1 Arial, sans-serif;
  letter-spacing: 0.16em;
}

.feature-card h3 {
  margin: 0 0 12px;
  font-family: var(--display);
  font-size: 1.55rem;
  letter-spacing: -0.03em;
}

.feature-card p {
  max-width: 430px;
  margin: 0;
  color: #6b7771;
  font-size: 0.9rem;
}

.feature-card-large p {
  color: var(--sage);
}

.quiet-screen {
  position: absolute;
  right: 46px;
  bottom: -48px;
  left: 46px;
  height: 270px;
  padding: 36px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 28px 28px 0 0;
  background:
    radial-gradient(circle at 75% 35%, rgba(239, 102, 129, 0.36), transparent 25%),
    linear-gradient(140deg, #183d31, #281f27);
  transform: perspective(600px) rotateX(5deg);
}

.quiet-screen::before {
  content: "";
  position: absolute;
  inset: 44px 50px;
  border: 1px solid rgba(217, 255, 180, 0.2);
  border-radius: 50%;
}

.quiet-screen span {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
}

.quiet-screen span:nth-child(1) {
  top: 34%;
  left: 36%;
}

.quiet-screen span:nth-child(2) {
  top: 48%;
  right: 30%;
}

.quiet-screen span:nth-child(3) {
  right: 44%;
  bottom: 25%;
}

.quiet-screen i {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 70px;
  height: 70px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.8);
  font: 800 0.82rem/1 Arial, sans-serif;
  letter-spacing: 0.08em;
  transform: translate(-50%, -50%);
}

.quiet-screen i::after {
  content: "";
  position: absolute;
  width: 90px;
  height: 2px;
  background: var(--pink);
  transform: rotate(-42deg);
}

.install {
  color: #fff;
  background: var(--ink);
}

.install-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 100px;
}

.install-copy {
  align-self: center;
}

.install-copy > p:not(.section-kicker) {
  margin: 24px 0 28px;
  color: var(--sage);
  font-size: 0.92rem;
  line-height: 1.9;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--lime);
  font-size: 0.9rem;
  font-weight: 700;
}

.text-link svg {
  transition: transform 180ms ease;
}

.text-link:hover svg {
  transform: translateX(4px);
}

.install-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: install;
}

.install-steps li {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 26px;
  padding: 32px 0;
  border-top: 1px solid var(--white-line);
}

.install-steps li:last-child {
  border-bottom: 1px solid var(--white-line);
}

.install-steps > li > span {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(217, 255, 180, 0.22);
  border-radius: 50%;
  color: var(--lime);
  font: 700 0.68rem/1 Arial, sans-serif;
}

.install-steps h3 {
  margin: 0 0 6px;
  font-family: var(--display);
  font-size: 1.25rem;
}

.install-steps p {
  margin: 0;
  color: var(--sage);
  font-size: 0.88rem;
}

.download-section {
  padding-bottom: 70px;
}

.download-panel {
  position: relative;
  min-height: 520px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  overflow: hidden;
  border-radius: 34px;
  color: #fff;
  background:
    radial-gradient(circle at 15% 45%, rgba(217, 255, 180, 0.22), transparent 28%),
    radial-gradient(circle at 88% 8%, rgba(239, 102, 129, 0.26), transparent 30%),
    #1c4437;
}

.download-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.16;
  background-image: radial-gradient(rgba(255, 255, 255, 0.62) 1px, transparent 1px);
  background-size: 18px 18px;
  mask-image: linear-gradient(90deg, #000, transparent 62%);
}

.download-art {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
}

.download-art img {
  position: relative;
  z-index: 2;
  width: 150px;
  height: 150px;
  border: 8px solid rgba(255, 255, 255, 0.78);
  border-radius: 34px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.3);
  transform: rotate(-7deg);
}

.download-ring,
.download-ring::before,
.download-ring::after {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 50%;
}

.download-ring {
  width: 360px;
  height: 360px;
}

.download-ring::before,
.download-ring::after {
  content: "";
  inset: 44px;
}

.download-ring::after {
  inset: 95px;
  border-style: dashed;
}

.download-copy {
  position: relative;
  z-index: 2;
  padding: 60px 80px 60px 30px;
}

.download-copy h2 {
  font-size: clamp(2.8rem, 5vw, 5.1rem);
}

.download-meta {
  display: flex;
  gap: 8px;
  margin: 26px 0;
}

.download-meta span {
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.7rem;
}

.button-light {
  color: var(--ink);
  background: #fff;
}

.button-light:hover {
  background: var(--lime);
}

.faq-section {
  padding-top: 70px;
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 90px;
}

.faq-heading {
  position: sticky;
  top: 36px;
  align-self: start;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0;
  font-family: var(--display);
  font-size: 1.08rem;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary span {
  position: relative;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.faq-list summary span::before,
.faq-list summary span::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 1px;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform 180ms ease;
}

.faq-list summary span::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-list details[open] summary span::after {
  transform: translate(-50%, -50%) rotate(0);
}

.faq-list details p {
  max-width: 660px;
  margin: -10px 50px 28px 0;
  color: #68756f;
  font-size: 0.9rem;
}

.safety-note {
  padding-bottom: 100px;
}

.safety-inner {
  display: flex;
  gap: 18px;
  padding: 24px 28px;
  border: 1px solid rgba(239, 102, 129, 0.22);
  border-radius: 18px;
  background: rgba(239, 102, 129, 0.06);
}

.safety-inner > svg {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--pink);
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.safety-inner strong {
  font-size: 0.92rem;
}

.safety-inner p {
  margin: 3px 0 0;
  color: #6d7772;
  font-size: 0.83rem;
}

.site-footer {
  padding: 48px 0 120px;
  color: #fff;
  background: var(--ink);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr auto;
  align-items: center;
  gap: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand small {
  margin-top: 4px;
  color: var(--sage);
  font-size: 0.64rem;
}

.footer-inner > p {
  margin: 0;
  color: var(--sage);
  font-size: 0.76rem;
}

.footer-inner > a {
  color: var(--lime);
  font-size: 0.78rem;
}

.footer-links {
  display: flex;
  gap: 18px;
  white-space: nowrap;
}

.footer-links a {
  color: var(--lime);
  font-size: 0.78rem;
}

.safety-inner a {
  color: #b43e58;
  font-weight: 700;
}

/* 免责声明独立页面 */
.legal-page {
  background: var(--paper);
}

.legal-page .site-header {
  position: static;
  background: var(--ink);
}

.legal-main {
  min-height: 70vh;
}

.legal-hero {
  padding: 90px 0 80px;
  color: #fff;
  background:
    radial-gradient(circle at 82% 18%, rgba(217, 255, 180, 0.12), transparent 30%),
    var(--ink-soft);
}

.legal-hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.4rem, 8vw, 7rem);
  line-height: 1;
  letter-spacing: -0.07em;
}

.legal-hero > .container > p:not(.section-kicker) {
  max-width: 720px;
  margin: 26px 0 0;
  color: var(--sage);
  font-size: 0.96rem;
}

.legal-hero > .container > p strong {
  color: #fff;
}

.legal-update {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 34px;
  font-size: 0.74rem;
}

.legal-update span {
  padding: 5px 9px;
  border: 1px solid var(--white-line);
  border-radius: 99px;
  color: var(--sage);
}

.legal-content {
  padding: 90px 0 120px;
}

.legal-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  align-items: start;
  gap: 72px;
}

.legal-summary {
  position: sticky;
  top: 30px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--cream);
}

.legal-summary strong {
  font-family: var(--display);
  font-size: 1.15rem;
}

.legal-summary p {
  margin: 14px 0 0;
  color: #68756f;
  font-size: 0.8rem;
}

.legal-summary a {
  display: inline-flex;
  margin-top: 20px;
  color: #b43e58;
  font-size: 0.82rem;
  font-weight: 700;
}

.legal-sections {
  display: grid;
  gap: 18px;
}

.legal-alert,
.legal-block {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
}

.legal-alert {
  padding: 28px 30px;
  border-color: rgba(239, 102, 129, 0.28);
  background: rgba(239, 102, 129, 0.07);
}

.legal-alert h2,
.legal-block h2 {
  margin: 0;
  font-family: var(--display);
  letter-spacing: -0.03em;
}

.legal-alert h2 {
  color: #b43e58;
  font-size: 1.35rem;
}

.legal-alert p {
  margin: 10px 0 0;
  color: #5e6964;
  font-size: 0.88rem;
}

.legal-block {
  position: relative;
  padding: 34px;
}

.legal-block > span {
  position: absolute;
  top: 35px;
  right: 34px;
  color: #93a099;
  font: 700 0.68rem/1 Arial, sans-serif;
  letter-spacing: 0.16em;
}

.legal-block h2 {
  padding-right: 54px;
  font-size: 1.42rem;
}

.legal-block p,
.legal-block li {
  color: #606d67;
  font-size: 0.86rem;
  line-height: 1.9;
}

.legal-block p {
  margin: 16px 0 0;
}

.legal-block ul {
  margin: 14px 0 0;
  padding-left: 1.25em;
}

.legal-block a {
  color: #a9324b;
  font-weight: 700;
  word-break: break-word;
}

.legal-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.legal-sources a {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #5f6d66;
  background: var(--cream);
  font-size: 0.7rem;
}

.floating-download {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 200;
  padding: 12px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(120%);
  transition: opacity 240ms ease, visibility 240ms ease, transform 240ms ease;
}

.floating-download.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.download-modal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 240ms ease, visibility 240ms ease;
  will-change: opacity;
}

.download-modal[hidden] {
  display: none;
}

.download-modal.is-open {
  opacity: 1;
  visibility: visible;
}

.download-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 12, 9, 0.82);
}

.download-modal-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 430px);
  padding: 34px 32px 26px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 26px;
  color: #fff;
  background:
    radial-gradient(circle at 90% 4%, rgba(217, 255, 180, 0.13), transparent 30%),
    var(--ink-soft);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.46);
  opacity: 0;
  transform: translate3d(0, 24px, 0) scale(0.96);
  transition:
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 220ms ease;
  backface-visibility: hidden;
  will-change: transform, opacity;
}

.download-modal.is-open .download-modal-panel {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

.download-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  padding: 0 0 2px;
  border: 1px solid var(--white-line);
  border-radius: 50%;
  color: var(--sage);
  background: rgba(255, 255, 255, 0.04);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.download-modal-close:hover {
  color: var(--ink);
  background: var(--lime);
}

.download-modal-kicker {
  margin: 0 0 8px;
  color: var(--pink);
  font: 700 0.65rem/1.2 Arial, sans-serif;
  letter-spacing: 0.18em;
}

.download-modal-panel h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.75rem;
  letter-spacing: -0.04em;
}

.download-modal-panel > p:not(.download-modal-kicker) {
  margin: 8px 0 20px;
  color: var(--sage);
  font-size: 0.8rem;
}

.download-modal-code {
  margin: 0;
  padding: 12px;
  border-radius: 19px;
  background: #fff;
}

.download-modal-code img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 10px;
}

.download-modal-code figcaption {
  padding: 9px 4px 1px;
  color: #68756f;
  font-size: 0.67rem;
  text-align: center;
}

.download-modal-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-top: 18px;
}

.download-modal-footer > span {
  flex: 0 0 auto;
  color: var(--sage);
  font-size: 0.64rem;
}

.download-modal-footer a {
  color: var(--lime);
  font-size: 0.72rem;
  font-weight: 700;
  text-align: right;
}

.download-modal-footer a:hover {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.floating-inner {
  width: min(calc(100% - 24px), 620px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-inline: auto;
  padding: 10px 10px 10px 13px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  color: #fff;
  background: rgba(6, 19, 15, 0.92);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.floating-inner > div {
  display: flex;
  align-items: center;
  gap: 11px;
}

.floating-download small {
  color: var(--sage);
  font-size: 0.64rem;
}

:focus-visible {
  outline: 3px solid rgba(239, 102, 129, 0.45);
  outline-offset: 3px;
}

@keyframes breathe {
  50% {
    box-shadow: 0 0 0 8px rgba(189, 252, 120, 0.04);
  }
}

@keyframes slow-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 1040px) {
  .hero-grid {
    grid-template-columns: 1fr 0.85fr;
    gap: 20px;
  }

  .hero-stage {
    transform: scale(0.86);
  }

  .film-orbit-one {
    transform: scale(0.86);
  }

  .fact-grid strong {
    font-size: 0.82rem;
  }

  .install-grid {
    gap: 60px;
  }
}

@media (max-width: 820px) {
  .container {
    width: min(calc(100% - 30px), var(--container));
  }

  .header-inner {
    min-height: 76px;
    display: flex;
  }

  .brand {
    margin-right: auto;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .header-download {
    display: none;
  }

  .nav-toggle {
    position: relative;
    z-index: 102;
    width: 42px;
    height: 42px;
    display: grid;
    place-content: center;
    gap: 7px;
    padding: 0;
    border: 1px solid var(--white-line);
    border-radius: 12px;
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
    cursor: pointer;
  }

  .nav-toggle span {
    width: 18px;
    height: 1px;
    display: block;
    background: currentColor;
    transition: transform 180ms ease;
  }

  .site-header.is-open .nav-toggle span:first-child {
    transform: translateY(4px) rotate(45deg);
  }

  .site-header.is-open .nav-toggle span:last-child {
    transform: translateY(-4px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 101;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    padding: 80px 28px;
    color: #fff;
    background: rgba(6, 19, 15, 0.98);
    opacity: 0;
    visibility: hidden;
    transition: opacity 180ms ease, visibility 180ms ease;
  }

  .site-header.is-open .site-nav {
    opacity: 1;
    visibility: visible;
  }

  .site-nav a {
    width: 100%;
    padding: 20px 0;
    border-bottom: 1px solid var(--white-line);
    font-family: var(--display);
    font-size: 1.5rem;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 132px;
  }

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

  .hero h1 {
    font-size: clamp(3.2rem, 13vw, 5.2rem);
  }

  .hero-stage {
    min-height: 620px;
    transform: scale(0.92);
  }

  .facts {
    margin-top: -12px;
  }

  .fact-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 16px 0;
  }

  .fact-grid > div {
    min-height: 78px;
    justify-content: center;
  }

  .fact-grid > div:nth-child(3) {
    border-top: 1px solid var(--white-line);
  }

  .fact-grid > div:nth-child(4) {
    border-top: 1px solid var(--white-line);
    border-right: 1px solid var(--white-line);
  }

  .section {
    padding: 88px 0;
  }

  .section-heading,
  .seo-intro-inner,
  .install-grid,
  .download-panel,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .section-heading {
    gap: 20px;
    margin-bottom: 38px;
  }

  .seo-intro-inner {
    gap: 18px;
  }

  .section-heading > span {
    justify-self: start;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-card-large {
    grid-row: auto;
  }

  .install-grid {
    gap: 48px;
  }

  .download-panel {
    padding-bottom: 50px;
  }

  .download-art {
    min-height: 330px;
  }

  .download-copy {
    padding: 0 34px;
    text-align: center;
  }

  .download-meta {
    justify-content: center;
  }

  .faq-heading {
    position: static;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .legal-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .legal-summary {
    position: static;
  }
}

@media (max-width: 520px) {
  .brand span {
    display: none;
  }

  .availability {
    white-space: normal;
  }

  .hero-actions {
    display: grid;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-points {
    gap: 12px 16px;
  }

  .hero-stage {
    min-height: 540px;
    margin: -22px 0 -28px;
    transform: scale(0.76);
  }

  .film-orbit-one {
    transform: scale(0.84);
  }

  .version-card {
    right: -16px;
  }

  .fact-grid > div {
    padding-inline: 15px;
  }

  .section-heading h2,
  .install-copy h2,
  .faq-heading h2 {
    font-size: 2.55rem;
  }

  .feature-card {
    padding: 28px;
  }

  .feature-card-large {
    min-height: 520px;
    padding-bottom: 230px;
  }

  .quiet-screen {
    right: 24px;
    left: 24px;
  }

  .install-steps li {
    grid-template-columns: 50px 1fr;
    gap: 14px;
  }

  .install-steps > li > span {
    width: 42px;
    height: 42px;
  }

  .download-section {
    padding-bottom: 44px;
  }

  .download-panel {
    border-radius: 24px;
  }

  .download-art {
    min-height: 290px;
    transform: scale(0.84);
  }

  .download-copy h2 {
    font-size: 3rem;
  }

  .download-meta {
    flex-wrap: wrap;
  }

  .download-copy .button {
    width: 100%;
  }

  .faq-section {
    padding-top: 44px;
  }

  .faq-list summary {
    font-size: 1rem;
  }

  .safety-note {
    padding-bottom: 72px;
  }

  .safety-inner {
    padding: 20px;
  }

  .floating-inner {
    width: 100%;
  }

  .download-modal {
    padding: 14px;
  }

  .download-modal-panel {
    padding: 30px 22px 22px;
    border-radius: 22px;
  }

  .download-modal-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .download-modal-footer a {
    align-self: flex-end;
  }

  .legal-hero {
    padding: 68px 0 62px;
  }

  .legal-content {
    padding: 58px 0 80px;
  }

  .legal-block {
    padding: 26px 22px;
  }

  .legal-block > span {
    top: 28px;
    right: 22px;
  }

  .legal-alert {
    padding: 24px 22px;
  }

  .footer-links {
    flex-wrap: wrap;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}