:root {
  color-scheme: light;
  --page: #f5f5f7;
  --surface: #ffffff;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --line: #d2d2d7;
  --blue: #0071e3;
  --black: #050507;
  --soft-black: #101014;
  --green: #12b76a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--page);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI",
    "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  backdrop-filter: saturate(180%) blur(20px);
  color: var(--ink);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  height: 52px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: grid;
  place-items: center;
  background: #111;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-links a {
  color: #424245;
  text-decoration: none;
  font-size: 13px;
}

.nav-links a:hover {
  color: var(--blue);
}

.hero {
  min-height: 100svh;
  padding: 96px 0 54px;
  display: grid;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 74%, rgba(255, 255, 255, 0.12), transparent 34%),
    #000;
  color: #fff;
}

.hero-inner {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  text-align: center;
}

.eyebrow,
.kicker,
.feature-label {
  display: inline-block;
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}

.hero h1 {
  max-width: 940px;
  margin: 18px auto 0;
  font-size: clamp(52px, 10vw, 118px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero h1 span {
  display: block;
  white-space: nowrap;
}

.hero-copy {
  max-width: 760px;
  margin: 24px auto 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: clamp(19px, 2.4vw, 28px);
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.hero-actions,
.section-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 19px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
}

.button-primary {
  background: var(--blue);
  color: #fff;
}

.button-primary:hover {
  background: #147ce5;
}

.button-ghost {
  border-color: rgba(255, 255, 255, 0.32);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

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

.hero-product {
  width: min(760px, 100%);
  margin: 58px auto 0;
}

.island-orbit {
  position: relative;
  min-height: clamp(300px, 44vw, 500px);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.island-orbit::before {
  content: "";
  position: absolute;
  width: min(680px, 92vw);
  height: min(680px, 92vw);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.island-orbit .lottie-player {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.clean-product .hero-fallback {
  animation: floatProduct 5.6s ease-in-out infinite;
}

.hero-fallback {
  width: min(560px, 86vw);
  height: auto;
  object-fit: contain;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 28px 58px rgba(0, 0, 0, 0.45));
}

.statement {
  padding: clamp(80px, 14vw, 170px) 0;
  background: #fff;
}

.statement p {
  max-width: 1040px;
  margin: 0 auto;
  font-size: clamp(34px, 6vw, 72px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: 0;
  text-align: center;
}

.statement p span {
  display: block;
}

main {
  background: var(--page);
}

.section {
  padding: clamp(74px, 10vw, 132px) 0;
}

.section-white {
  background: #fff;
}

.wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.center-head {
  text-align: center;
  margin-inline: auto;
}

.section-head {
  max-width: 780px;
  margin-bottom: 42px;
}

.section h2,
.cta h2 {
  margin: 12px 0 0;
  font-size: clamp(38px, 6vw, 76px);
  line-height: 1.04;
  letter-spacing: 0;
}

.section-lead {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.guide-section {
  background: #fff;
  padding-top: clamp(72px, 11vw, 142px);
}

.guide-head {
  max-width: 860px;
}

.guide-head h2 span {
  display: block;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.guide-card {
  min-height: 620px;
  padding: 18px 18px 24px;
  display: grid;
  align-content: space-between;
  border-radius: 28px;
  background: #f5f5f7;
  overflow: hidden;
}

.guide-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 720 / 754;
  display: grid;
  place-items: center;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 246, 248, 0.92)),
    #fff;
  overflow: hidden;
}

.guide-stage .lottie-player {
  width: 100%;
  height: 100%;
}

.guide-copy {
  padding: 22px 6px 0;
}

.guide-index {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.guide-card h3 {
  margin: 16px 0 0;
  font-size: clamp(24px, 2.4vw, 34px);
  line-height: 1.08;
  letter-spacing: 0;
}

.guide-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.58;
}

.dark-section {
  background: var(--soft-black);
  color: #fff;
}

.dark-section .section-lead,
.black-feature p,
.cta p {
  color: rgba(255, 255, 255, 0.72);
}

.motion-showcase {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.motion-hero-card {
  min-height: 660px;
  padding: 28px;
  display: grid;
  align-content: space-between;
  border-radius: 28px;
  background: #f5f5f7;
  color: var(--ink);
  overflow: hidden;
}

.motion-hero-card h3,
.large-feature h3 {
  margin: 10px 0 0;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.08;
  letter-spacing: 0;
}

.motion-hero-card p,
.large-feature p,
.story-copy p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.58;
}

.animation-stage {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 22px;
  background: #fff;
}

.large-stage {
  height: 420px;
  margin-bottom: 24px;
}

.animation-stage .lottie-player {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.lottie-player svg,
.lottie-player canvas {
  width: 100% !important;
  height: 100% !important;
}

.lottie-fallback {
  position: relative;
  z-index: 1;
  width: min(86%, 360px);
  height: auto;
  object-fit: contain;
}

.clean-stage {
  background: #fbfbfd;
}

.animated-asset {
  width: min(86%, 390px);
  height: auto;
  object-fit: contain;
  animation: floatProduct 5s ease-in-out infinite;
}

@keyframes floatProduct {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }

  50% {
    transform: translate3d(0, -12px, 0) scale(1.015);
  }
}

.product-section {
  background: #fff;
}

.feature-story {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(30px, 7vw, 88px);
  align-items: center;
}

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

.story-copy h2 {
  margin: 12px 0 0;
  font-size: clamp(42px, 7vw, 86px);
  line-height: 1.02;
}

.story-visual {
  min-height: 520px;
  border-radius: 32px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  background: #f5f5f7;
  box-shadow: var(--shadow);
}

.story-visual .lottie-player {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.story-visual img {
  width: min(78%, 430px);
  height: auto;
  object-fit: contain;
  position: relative;
  z-index: 1;
}

.story-visual.image-only img {
  width: min(86%, 500px);
}

.light-band {
  background: var(--page);
}

.large-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.large-feature {
  min-height: 620px;
  padding: 28px;
  border-radius: 28px;
  background: #fff;
  overflow: hidden;
}

.large-feature img {
  width: 100%;
  height: 330px;
  object-fit: contain;
  display: block;
  margin-bottom: 24px;
}

.black-feature {
  background: #000;
  color: #fff;
}

.black-feature .story-visual {
  background: #151518;
  box-shadow: none;
}

.update-layout {
  display: grid;
  grid-template-columns: 1fr minmax(320px, 460px);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
}

.release-box {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fff;
  padding: 28px;
}

.glass-box {
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.08);
}

.release-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.release-row:last-child {
  border-bottom: 0;
}

.release-row span {
  color: var(--muted);
}

.release-row strong {
  text-align: right;
  overflow-wrap: anywhere;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  counter-reset: steps;
}

.step {
  min-height: 230px;
  padding: 28px;
  border-radius: 28px;
  background: #fff;
  counter-increment: steps;
}

.step::before {
  content: counter(steps);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
  margin-bottom: 28px;
}

.step h3 {
  margin: 0;
  font-size: 26px;
}

.step p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

.cta {
  padding: clamp(70px, 10vw, 120px) 0;
  background: #000;
  color: #fff;
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}

.cta p {
  max-width: 680px;
  margin: 16px 0 0;
  font-size: 19px;
  line-height: 1.6;
}

.site-footer {
  padding: 28px 0;
  background: #000;
  color: rgba(255, 255, 255, 0.56);
}

.footer-inner {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
}

.notice-page {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
  background: #f5f5f7;
}

.notice-box {
  width: min(560px, 100%);
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
}

.notice-box h1 {
  margin: 0;
  font-size: 32px;
}

.notice-box p {
  color: var(--muted);
  line-height: 1.8;
}

.notice-box code {
  display: block;
  padding: 12px;
  border-radius: 12px;
  background: #f5f5f7;
  overflow-wrap: anywhere;
}

@media (max-width: 940px) {
  .nav-links {
    display: none;
  }

	  .motion-showcase,
	  .guide-grid,
	  .feature-story,
	  .feature-story.reverse,
	  .large-feature-grid,
  .update-layout,
  .steps,
	  .cta-inner {
	    grid-template-columns: 1fr;
	  }

	  .guide-grid {
	    grid-template-columns: repeat(2, minmax(0, 1fr));
	  }

	  .motion-hero-card,
	  .guide-card,
	  .large-feature {
	    min-height: auto;
	  }

  .story-visual {
    min-height: 420px;
  }

  .cta-inner .hero-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .nav {
    width: calc(100% - 24px);
  }

  .hero {
    padding: 84px 0 44px;
  }

  .hero-inner,
  .wrap,
  .footer-inner {
    width: calc(100% - 24px);
  }

  .hero h1 {
    font-size: clamp(48px, 14vw, 72px);
  }

  .hero-copy {
    font-size: 18px;
  }

	  .hero-actions,
	  .section-actions {
	    display: grid;
	    grid-template-columns: 1fr;
	  }

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

  .button {
    width: 100%;
  }

  .island-orbit {
    min-height: 300px;
  }

  .statement p {
    text-align: left;
  }

	  .motion-hero-card,
	  .guide-card,
	  .large-feature,
	  .step,
	  .release-box,
  .story-visual {
    border-radius: 18px;
  }

	  .motion-hero-card,
	  .guide-card,
	  .large-feature,
	  .step {
	    padding: 22px;
  }

  .large-stage {
    height: 300px;
  }

  .story-visual {
    min-height: 330px;
  }

  .large-feature img {
    height: 250px;
  }

  .release-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .release-row strong {
    text-align: left;
  }
}