:root {
  --ink: #fff8ea;
  --text: #fff8ea;
  --muted: rgba(255, 248, 234, 0.68);
  --deep: #120f18;
  --panel: rgba(255, 246, 232, 0.12);
  --panel-strong: rgba(255, 246, 232, 0.2);
  --line: rgba(255, 255, 255, 0.16);
  --pink: #f7b7c8;
  --hot: #ff5f8f;
  --mint: #b7e4d8;
  --violet: #b8a7ff;
  --amber: #ffc85a;
  --green: #7ed9be;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 6%, rgba(247, 183, 200, 0.28), transparent 28rem),
    radial-gradient(circle at 88% 16%, rgba(126, 217, 190, 0.28), transparent 30rem),
    radial-gradient(circle at 60% 90%, rgba(184, 167, 255, 0.20), transparent 34rem),
    linear-gradient(135deg, #17111c 0%, #100e17 42%, #211725 100%);
  font-family:
    "HarmonyOS Sans SC",
    "Microsoft YaHei",
    "PingFang SC",
    sans-serif;
  overflow-x: hidden;
}

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

.noise,
.grid-glow,
.aurora {
  position: fixed;
  pointer-events: none;
  inset: 0;
}

.noise {
  z-index: 2;
  opacity: 0.13;
  background-image:
    linear-gradient(115deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 8px),
    radial-gradient(circle at center, rgba(255, 255, 255, 0.22) 0 1px, transparent 1px 5px);
  mix-blend-mode: overlay;
}

.grid-glow {
  z-index: 0;
  opacity: 0.24;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 22%, black, transparent 68%);
}

.aurora {
  z-index: 0;
  filter: blur(34px);
  opacity: 0.64;
}

.aurora-a {
  background: radial-gradient(circle at 18% 28%, rgba(255, 95, 143, 0.42), transparent 21rem);
  animation: float-a 8s ease-in-out infinite alternate;
}

.aurora-b {
  background: radial-gradient(circle at 72% 32%, rgba(126, 217, 190, 0.40), transparent 24rem);
  animation: float-b 9s ease-in-out infinite alternate;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0;
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.header-download {
  border: 1px solid var(--line);
  background: rgba(255, 246, 232, 0.09);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.18);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 8px;
  border-radius: 999px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 12px;
}

.nav-links {
  display: flex;
  gap: 6px;
  padding: 6px;
  border-radius: 999px;
}

.nav-links a {
  padding: 10px 18px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 700;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.11);
}

.header-download {
  padding: 12px 18px;
  border-radius: 999px;
  color: #2e1828;
  background: linear-gradient(135deg, var(--pink), #ffe3bd);
  font-weight: 900;
}

main {
  position: relative;
  z-index: 1;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  gap: 58px;
  align-items: center;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 74px 0 96px;
}

.eyebrow,
.section-heading span,
.section-kicker,
.download-copy span {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--mint);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.live-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 8px rgba(126, 217, 190, 0.13), 0 0 24px var(--green);
}

.hero h1 {
  max-width: 720px;
  margin: 18px 0 20px;
  font-size: clamp(48px, 7vw, 92px);
  line-height: 0.94;
  letter-spacing: -0.06em;
}

.hero-copy p,
.community-panel p,
.download-copy p {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 0 22px;
  border-radius: 20px;
  font-weight: 950;
}

.primary-action {
  color: #321525;
  background: linear-gradient(135deg, var(--pink), var(--amber));
  box-shadow: 0 20px 54px rgba(247, 183, 200, 0.30);
}

.primary-action svg {
  width: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.secondary-action {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
}

.metric-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 42px;
}

.metric-row div {
  min-width: 128px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.08);
}

.metric-row strong,
.metric-row span {
  display: block;
}

.metric-row strong {
  font-size: 28px;
  line-height: 1;
}

.metric-row span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.hero-download-panel {
  position: relative;
  justify-self: stretch;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 40px;
  background:
    radial-gradient(circle at 86% 8%, rgba(247, 183, 200, 0.22), transparent 11rem),
    radial-gradient(circle at 16% 92%, rgba(183, 228, 216, 0.22), transparent 13rem),
    linear-gradient(145deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.06));
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
}

.hero-logo {
  width: 92px;
  height: 92px;
  margin-bottom: 30px;
  border-radius: 28px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.hero-download-panel h2 {
  max-width: 420px;
  margin: 14px 0 16px;
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.hero-download-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.hero-panel-download {
  margin-top: 30px;
}

.download-status {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.hero-device {
  position: relative;
  justify-self: center;
}

.phone-shell {
  width: min(390px, 86vw);
  padding: 10px;
  border: 2px solid rgba(255, 255, 255, 0.44);
  border-radius: 48px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.12));
  box-shadow: var(--shadow);
}

.phone-screen {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  border-radius: 38px;
  background: #fff6e8;
  color: #3a2238;
}

.status-bar {
  display: flex;
  justify-content: space-between;
  padding: 22px 28px 0;
  font-size: 13px;
  font-weight: 900;
}

.phone-bg {
  position: absolute;
  top: 20px;
  right: -58px;
  width: 360px;
  opacity: 0.88;
}

.mode-pill,
.hello,
.feature-grid {
  position: relative;
  z-index: 1;
}

.mode-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 44px 0 0 28px;
  padding: 8px 10px;
  border-radius: 18px;
  background: rgba(255, 253, 248, 0.84);
  box-shadow: 0 18px 50px rgba(123, 111, 99, 0.14);
}

.mode-pill img {
  width: 34px;
  height: 34px;
  border-radius: 12px;
}

.mode-pill span {
  font-size: 12px;
  font-weight: 900;
}

.hello {
  margin: 64px 28px 24px;
}

.hello strong {
  display: block;
  font-size: 30px;
  line-height: 1.15;
}

.hello span {
  display: block;
  margin-top: 10px;
  color: #7b6f63;
  font-size: 14px;
  font-weight: 800;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 0 24px 26px;
}

.mini-card {
  min-height: 160px;
  padding: 18px;
  border-radius: 28px;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.68);
  box-shadow: 0 20px 44px rgba(123, 111, 99, 0.12);
}

.mini-card img {
  width: 70px;
  height: 70px;
  object-fit: contain;
  filter: drop-shadow(0 12px 14px rgba(0, 0, 0, 0.16));
}

.mini-card b,
.mini-card span {
  display: block;
}

.mini-card b {
  margin-top: 26px;
  font-size: 19px;
  text-shadow: 0 3px 10px rgba(0, 0, 0, 0.18);
}

.mini-card span {
  margin-top: 5px;
  opacity: 0.84;
  font-size: 13px;
  font-weight: 800;
}

.pink { background: linear-gradient(135deg, #f7b7c8, #ff8eb3); }
.mint { background: linear-gradient(135deg, #b7e4d8, #76d8d7); }
.violet { background: linear-gradient(135deg, #b8a7ff, #937cff); }
.green { background: linear-gradient(135deg, #b7e4d8, #8bd7af); }

.orbit-chip {
  position: absolute;
  display: grid;
  place-items: center;
  min-width: 64px;
  height: 42px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(18, 15, 24, 0.62);
  backdrop-filter: blur(18px);
  font-weight: 950;
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.22);
  animation: chip-drift 4.5s ease-in-out infinite alternate;
}

.chip-one { top: 9%; right: -14%; color: var(--pink); }
.chip-two { top: 56%; left: -18%; color: var(--mint); animation-delay: -1.2s; }
.chip-three { bottom: 9%; right: -8%; color: var(--amber); animation-delay: -2s; }

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 70px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 26px;
}

.section-heading h2,
.community-panel h2,
.download-copy h2 {
  margin: 12px 0 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

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

.feature-cards article,
.community-panel,
.download-section {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.05));
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(24px);
}

.feature-cards article {
  min-height: 300px;
  padding: 22px;
  border-radius: 34px;
  transition: transform 220ms ease, border-color 220ms ease;
}

.feature-cards article:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 255, 255, 0.36);
}

.feature-cards img {
  width: 94px;
  height: 94px;
  object-fit: contain;
}

.feature-cards h3 {
  margin: 28px 0 10px;
  font-size: 24px;
}

.feature-cards p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.community-panel {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 430px);
  gap: 38px;
  align-items: center;
  padding: 42px;
  border-radius: 40px;
}

.proof-list {
  display: grid;
  gap: 14px;
}

.proof-list div {
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.08);
}

.proof-list strong,
.proof-list span {
  display: block;
}

.proof-list strong {
  font-size: 20px;
}

.proof-list span {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.6;
}

.social-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.social-card {
  min-height: 154px;
  padding: 18px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 74% 24%, rgba(255, 255, 255, 0.20), transparent 5rem),
    linear-gradient(135deg, rgba(247, 183, 200, 0.24), rgba(183, 228, 216, 0.15));
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.social-card.wide {
  grid-column: 1 / -1;
}

.social-card.accent {
  background: linear-gradient(135deg, rgba(184, 167, 255, 0.32), rgba(255, 200, 90, 0.16));
}

.social-card span,
.social-card strong,
.social-card em {
  display: block;
}

.social-card span {
  color: var(--mint);
  font-size: 12px;
  font-weight: 950;
}

.social-card strong {
  margin-top: 34px;
  font-size: 22px;
}

.social-card em {
  margin-top: 10px;
  color: var(--muted);
  font-style: normal;
}

.download-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  width: min(1180px, calc(100% - 40px));
  margin: 70px auto 90px;
  padding: 42px;
  border-radius: 44px;
}

.download-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.download-card,
.qr-card {
  min-height: 178px;
  padding: 22px;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.download-card {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: transform 220ms ease, background 220ms ease;
}

.download-card:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.13);
}

.main-download {
  color: #2c1725;
  background: linear-gradient(135deg, var(--pink), var(--amber));
}

.platform {
  margin-bottom: auto;
  color: currentColor;
  opacity: 0.72;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.download-card strong,
.qr-card strong {
  display: block;
  font-size: 24px;
}

.download-card small,
.qr-card small {
  display: block;
  margin-top: 8px;
  color: currentColor;
  opacity: 0.72;
  line-height: 1.6;
}

.qr-card {
  display: grid;
  grid-template-columns: 100px 1fr;
  grid-column: 1 / -1;
  gap: 18px;
  align-items: center;
}

.qr-pattern {
  width: 100px;
  height: 100px;
  border-radius: 22px;
  background:
    linear-gradient(90deg, #fff 10px, transparent 10px 18px, #fff 18px 28px, transparent 28px),
    linear-gradient(#fff 10px, transparent 10px 18px, #fff 18px 28px, transparent 28px),
    #211725;
  background-size: 28px 28px;
  border: 10px solid #fff8ea;
}

.site-footer {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 0 0 34px;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(26px) scale(0.985);
  transition:
    opacity 700ms cubic-bezier(0.2, 0.9, 0.2, 1),
    transform 700ms cubic-bezier(0.2, 0.9, 0.2, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes float-a {
  to { transform: translate3d(2vw, 4vh, 0) scale(1.05); }
}

@keyframes float-b {
  to { transform: translate3d(-3vw, 2vh, 0) scale(0.96); }
}

@keyframes chip-drift {
  to { transform: translateY(-16px) rotate(2deg); }
}

@media (max-width: 960px) {
  .hero,
  .community-panel,
  .download-section {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 44px;
  }

  .hero-device {
    order: -1;
  }

  .feature-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .site-header {
    width: calc(100% - 24px);
    gap: 10px;
  }

  .brand span,
  .nav-links,
  .header-download {
    display: none;
  }

  .hero,
  .section,
  .download-section {
    width: calc(100% - 28px);
  }

  .hero {
    gap: 34px;
    padding-bottom: 54px;
  }

  .hero h1 {
    font-size: 48px;
  }

  .phone-screen {
    min-height: 720px;
  }

  .feature-grid,
  .feature-cards,
  .download-cards,
  .social-stack {
    grid-template-columns: 1fr;
  }

  .qr-card {
    grid-template-columns: 1fr;
  }

  .site-footer {
    width: calc(100% - 28px);
  }
}