:root {
  color-scheme: dark;
  --bg: #030711;
  --text: #f7f9ff;
  --muted: #9ba8c0;
  --line: rgba(255, 255, 255, .11);
  --cyan: #46dcff;
  --blue: #5577ff;
  --violet: #a868ff;
  --pink: #ee82e5;
  --safe: max(24px, calc((100vw - 1280px) / 2));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 50% -10%, rgba(55, 99, 255, .16), transparent 34rem),
    linear-gradient(180deg, #030711 0%, #050815 52%, #02050b 100%);
  font-family: "Segoe UI", "Microsoft YaHei UI", "Noto Sans SC", sans-serif;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
#audio-field {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: .86;
}
.aurora {
  position: fixed;
  z-index: 0;
  width: 52vw;
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(110px);
  pointer-events: none;
  opacity: .23;
}
.aurora-a { top: -18vw; left: -10vw; background: #175cff; animation: drift-a 18s ease-in-out infinite alternate; }
.aurora-b { right: -14vw; top: 20vh; background: #9a35f0; animation: drift-b 22s ease-in-out infinite alternate; }
.grain {
  position: fixed;
  inset: 0;
  z-index: 40;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.92' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.topbar {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 50;
  width: min(1280px, calc(100vw - 32px));
  min-height: 66px;
  padding: 8px 9px 8px 14px;
  display: flex;
  align-items: center;
  gap: 26px;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 20px;
  background: rgba(4, 8, 17, .68);
  box-shadow: 0 24px 80px rgba(0,0,0,.30), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter: blur(24px) saturate(1.35);
  transform: translateX(-50%);
}
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand img { width: 42px; height: 42px; border-radius: 12px; }
.brand-copy { display: grid; gap: 3px; }
.brand-copy strong { font-size: 15px; letter-spacing: .06em; }
.brand-copy small { color: #8996ad; font: 700 8px/1 "Segoe UI", sans-serif; letter-spacing: .24em; }
.nav-links { margin-left: auto; display: flex; gap: 28px; }
.nav-links a { color: rgba(255,255,255,.68); font-size: 13px; transition: color .2s; }
.nav-links a:hover { color: #fff; }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.sound-toggle, .language-pill {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.045);
  color: rgba(255,255,255,.82);
  cursor: pointer;
  transition: border-color .2s, background .2s, color .2s;
}
.sound-toggle {
  min-height: 38px;
  padding: 0 13px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 12px;
  font-size: 12px;
}
.sound-toggle:hover, .sound-toggle[aria-pressed="true"] {
  color: #fff;
  border-color: rgba(70,220,255,.45);
  background: rgba(70,220,255,.10);
}
.sound-icon { color: var(--cyan); font-size: 10px; }
.language-pill { height: 38px; padding: 0 12px; border-radius: 999px; }
.language-pill span { margin: 0 2px; }
.language-pill .is-muted { color: rgba(255,255,255,.34); }
html[lang="en"] .language-pill span:first-child { color: rgba(255,255,255,.34); }
html[lang="en"] .language-pill .is-muted { color: #fff; }
.nav-download {
  min-height: 44px;
  padding: 0 15px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border-radius: 13px;
  color: #030711;
  background: linear-gradient(115deg, #74ecff, #8ca7ff 55%, #ef9cff);
  box-shadow: 0 12px 28px rgba(77,133,255,.25);
  font-size: 13px;
  font-weight: 800;
}
.nav-download svg { width: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.hero {
  position: relative;
  z-index: 2;
  min-height: 100svh;
  padding: 132px var(--safe) 72px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(3,7,17,.92) 0%, rgba(3,7,17,.64) 37%, transparent 70%),
    radial-gradient(circle at 72% 48%, rgba(91,89,255,.18), transparent 31%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  width: min(1280px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(520px, 1.08fr);
  align-items: center;
  gap: 42px;
}
.hero-copy { position: relative; z-index: 3; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #97dbff;
  font: 700 10px/1.2 "Segoe UI", sans-serif;
  letter-spacing: .2em;
}
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 16px var(--cyan); animation: pulse-dot 1.8s ease-in-out infinite; }
.hero-title {
  margin: 22px 0 24px;
  font-size: clamp(66px, 7.3vw, 122px);
  line-height: .86;
  letter-spacing: -.075em;
  font-weight: 900;
}
.hero-title > span { display: block; }
.hero-gradient {
  width: max-content;
  max-width: 100%;
  padding-bottom: .09em;
  background: linear-gradient(105deg, #73eaff 2%, #627cff 43%, #b26dff 72%, #ff9be8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 36px rgba(116,111,255,.20));
}
.hero-lede { max-width: 590px; margin: 0; color: #b7c1d5; font-size: 16px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.download-cta {
  min-height: 64px;
  padding: 8px 14px 8px 16px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border-radius: 18px;
  color: #030711;
  background: linear-gradient(115deg, #74ecff, #96b0ff 54%, #f1a7ff);
  box-shadow: 0 18px 46px rgba(84,132,255,.28), inset 0 1px 0 rgba(255,255,255,.56);
  transition: transform .23s, box-shadow .23s;
}
.download-cta:hover { transform: translateY(-3px); box-shadow: 0 24px 56px rgba(84,132,255,.36), inset 0 1px 0 rgba(255,255,255,.62); }
.windows-mark { font-size: 22px; line-height: 1; }
.download-copy { display: grid; gap: 3px; text-align: left; }
.download-copy strong { font-size: 14px; }
.download-copy small { color: rgba(3,7,17,.62); font-size: 9px; font-weight: 700; }
.download-arrow { width: 34px; height: 34px; margin-left: 6px; display: grid; place-items: center; border-radius: 11px; background: rgba(3,7,17,.10); font-size: 18px; }
.ghost-cta {
  min-height: 56px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: rgba(255,255,255,.85);
  background: rgba(255,255,255,.035);
  font-size: 13px;
}
.trust-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; color: #8e9ab0; font: 600 10px/1 "Segoe UI", sans-serif; }
.trust-row span { padding: 8px 10px; border: 1px solid rgba(255,255,255,.08); border-radius: 9px; }

.hero-stage {
  position: relative;
  min-height: 650px;
  display: grid;
  place-items: center;
  isolation: isolate;
}
.stage-glow {
  position: absolute;
  width: min(610px, 85%);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(85,119,255,.24), rgba(155,70,255,.11) 44%, transparent 70%);
  filter: blur(20px);
  animation: breathe 5s ease-in-out infinite;
}
.orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(103,185,255,.16);
  box-shadow: inset 0 0 50px rgba(90,80,255,.05);
}
.orbit-outer { width: min(570px, 82%); aspect-ratio: 1; transform: rotateX(72deg) rotateZ(12deg); animation: orbit-a 22s linear infinite; }
.orbit-inner { width: min(430px, 64%); aspect-ratio: 1; border-color: rgba(218,121,255,.18); transform: rotateX(68deg) rotateZ(-16deg); animation: orbit-b 16s linear infinite reverse; }
.frequency-ring { position: absolute; width: min(475px, 72%); aspect-ratio: 1; display: grid; place-items: center; }
.frequency-ring span {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 1px solid transparent;
  border-top-color: rgba(96,218,255,.42);
  border-right-color: rgba(178,96,255,.22);
  transform: rotate(calc(var(--i) * 45deg)) scale(calc(.75 + var(--i) * .045));
  animation: ring-spin calc(8s + var(--i) * 1.2s) linear infinite;
}
.frequency-ring span:nth-child(1) { --i: 0; }
.frequency-ring span:nth-child(2) { --i: 1; }
.frequency-ring span:nth-child(3) { --i: 2; }
.frequency-ring span:nth-child(4) { --i: 3; }
.frequency-ring span:nth-child(5) { --i: 4; }
.frequency-ring span:nth-child(6) { --i: 5; }
.brand-core {
  position: relative;
  z-index: 3;
  width: clamp(220px, 27vw, 350px);
  aspect-ratio: 1;
  border-radius: 29%;
  padding: 7px;
  background: linear-gradient(145deg, rgba(115,235,255,.74), rgba(107,126,255,.24) 48%, rgba(246,134,255,.52));
  box-shadow: 0 38px 110px rgba(0,0,0,.62), 0 0 90px rgba(88,103,255,.24), inset 0 1px 0 rgba(255,255,255,.82);
  transform: perspective(1200px) rotateY(-8deg) rotateX(4deg);
  animation: core-float 6s ease-in-out infinite;
}
.brand-core img { width: 100%; height: 100%; display: block; border-radius: 26%; }
.core-shine {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(126deg, rgba(255,255,255,.22), transparent 32%, transparent 72%, rgba(255,255,255,.10));
  mix-blend-mode: screen;
}
.brand-orbit-label {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  width: min(600px, 88%);
  aspect-ratio: 1;
  transform: translate(-50%, -50%) rotate(-9deg);
  animation: label-spin 24s linear infinite;
  pointer-events: none;
}
.brand-orbit-label strong, .brand-orbit-label span {
  position: absolute;
  color: rgba(218,232,255,.38);
  font: 800 10px/1 "Segoe UI", sans-serif;
  letter-spacing: .34em;
}
.brand-orbit-label strong { top: 2%; left: 19%; }
.brand-orbit-label span { right: 13%; bottom: 5%; }
.player-card {
  position: absolute;
  right: -20px;
  bottom: 44px;
  z-index: 6;
  width: min(300px, 70%);
  padding: 15px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 20px;
  background: rgba(7,12,25,.76);
  box-shadow: 0 26px 70px rgba(0,0,0,.44), inset 0 1px 0 rgba(255,255,255,.09);
  backdrop-filter: blur(22px) saturate(1.2);
  animation: card-float 5s ease-in-out infinite;
}
.player-card-head { display: flex; align-items: center; gap: 5px; color: #7e8ca7; font: 700 8px/1 "Segoe UI", sans-serif; letter-spacing: .17em; }
.player-card-head i { width: 5px; height: 5px; border-radius: 50%; background: rgba(255,255,255,.17); }
.player-card-head i:first-of-type { margin-left: auto; }
.track-row { display: flex; align-items: center; gap: 10px; margin-top: 14px; }
.track-row img { width: 44px; height: 44px; border-radius: 12px; }
.track-row div { min-width: 0; display: grid; gap: 3px; }
.track-row strong { font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-row small { color: #8a97ad; font-size: 9px; }
.track-pulse { width: 8px; height: 8px; margin-left: auto; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 14px var(--cyan); }
.spectrum { height: 29px; margin-top: 13px; display: flex; align-items: end; gap: 4px; }
.spectrum i {
  flex: 1;
  min-width: 2px;
  height: calc(8px + (var(--level, .5) * 20px));
  border-radius: 2px 2px 0 0;
  background: linear-gradient(to top, #5edcff, #a26dff);
  opacity: .8;
  animation: spectrum 1s ease-in-out infinite alternate;
  animation-delay: calc(var(--level, .5) * -1s);
}
.spectrum i:nth-child(1), .spectrum i:nth-child(8) { --level: .22; }
.spectrum i:nth-child(2), .spectrum i:nth-child(9) { --level: .58; }
.spectrum i:nth-child(3), .spectrum i:nth-child(10) { --level: .88; }
.spectrum i:nth-child(4), .spectrum i:nth-child(11) { --level: .42; }
.spectrum i:nth-child(5), .spectrum i:nth-child(12) { --level: .72; }
.spectrum i:nth-child(6) { --level: .96; }
.spectrum i:nth-child(7) { --level: .64; }
.player-progress { height: 2px; margin-top: 11px; border-radius: 999px; background: rgba(255,255,255,.07); overflow: hidden; }
.player-progress span { display: block; width: 61%; height: 100%; background: linear-gradient(90deg, var(--cyan), var(--violet)); box-shadow: 0 0 12px rgba(70,220,255,.38); }
.stage-chip {
  position: absolute;
  z-index: 7;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px;
  background: rgba(7,12,25,.68);
  box-shadow: 0 14px 40px rgba(0,0,0,.28);
  backdrop-filter: blur(16px);
  animation: card-float 4.5s ease-in-out infinite;
}
.stage-chip div { display: grid; gap: 3px; }
.stage-chip strong { font-size: 10px; }
.stage-chip small { color: #8b98ae; font-size: 8px; }
.stage-chip-left { left: -8px; top: 18%; animation-delay: -1.4s; }
.stage-chip-right { right: -10px; top: 11%; animation-delay: -2.7s; }
.chip-pulse { width: 17px; height: 17px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 20px rgba(70,220,255,.7); }
.chip-grid { width: 17px; height: 17px; border-radius: 5px; background: linear-gradient(135deg, var(--cyan), var(--violet)); }
.hero-rail {
  position: relative;
  z-index: 3;
  width: min(1280px, 100%);
  margin: 28px auto 0;
  padding-top: 17px;
  display: flex;
  align-items: center;
  gap: 18px;
  border-top: 1px solid rgba(255,255,255,.09);
  color: rgba(192,207,230,.34);
  font: 700 9px/1 "Segoe UI", sans-serif;
  letter-spacing: .18em;
  overflow: hidden;
  white-space: nowrap;
}
.hero-rail i { width: 4px; height: 4px; flex: 0 0 auto; border-radius: 50%; background: rgba(95,220,255,.55); }
.scroll-hint { position: absolute; left: 50%; bottom: 20px; width: 22px; height: 36px; border: 1px solid rgba(255,255,255,.18); border-radius: 12px; transform: translateX(-50%); }
.scroll-hint span { position: absolute; left: 50%; top: 8px; width: 3px; height: 7px; border-radius: 3px; background: var(--cyan); transform: translateX(-50%); animation: scroll-dot 1.8s ease-in-out infinite; }

.section { position: relative; z-index: 2; width: min(1240px, calc(100vw - 48px)); margin: 0 auto; padding: 126px 0; }
.section-title { max-width: 790px; margin-bottom: 46px; }
.section-title.compact { max-width: 620px; }
.section-kicker { color: #78dfff; font: 800 10px/1.2 "Segoe UI", sans-serif; letter-spacing: .22em; }
.section-kicker.light { color: #8beeff; }
.section-title h2, .desktop-copy h2, .privacy-section h2, .download-section h2 {
  margin: 15px 0 17px;
  font-size: clamp(38px, 5vw, 70px);
  line-height: .98;
  letter-spacing: -.055em;
}
.section-title p, .desktop-copy p { max-width: 690px; margin: 0; color: #9da9bf; font-size: 14px; line-height: 1.9; }
.feature-grid { display: grid; grid-template-columns: 1.35fr .825fr .825fr; gap: 14px; }
.feature-card {
  position: relative;
  min-height: 340px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(255,255,255,.055), rgba(255,255,255,.018));
  transition: transform .25s, border-color .25s;
}
.feature-card:hover { transform: translateY(-5px); border-color: rgba(102,211,255,.30); }
.feature-card-wide { min-height: 420px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.feature-index { color: #748198; font: 700 9px/1 "Segoe UI", sans-serif; letter-spacing: .16em; }
.feature-card h3 { margin: 25px 0 10px; font-size: 23px; letter-spacing: -.035em; }
.feature-card p { margin: 0; max-width: 540px; color: #98a5ba; font-size: 13px; line-height: 1.85; }
.feature-copy { max-width: 54%; }
.wave-card { flex: 0 0 38%; min-height: 280px; position: relative; border: 1px solid rgba(255,255,255,.09); border-radius: 22px; background: radial-gradient(circle at 50% 52%, rgba(78,153,255,.18), transparent 60%), rgba(0,0,0,.18); overflow: hidden; }
.wave-card > span { position: absolute; left: 14px; bottom: 13px; color: #7595aa; font: 700 8px/1 "Segoe UI", sans-serif; letter-spacing: .2em; }
.wave-lines { position: absolute; inset: 26px 19px 40px; display: flex; align-items: center; justify-content: center; gap: 4px; }
.wave-lines i { width: 4px; height: calc(8px + var(--h, .4) * 180px); border-radius: 4px; background: linear-gradient(to top, #57dcff, #b46dff); opacity: .78; animation: wave-line 1.1s ease-in-out infinite alternate; animation-delay: calc(var(--h, .4) * -1.3s); }
.particle-orb { position: relative; height: 126px; margin-top: 22px; display: grid; place-items: center; }
.particle-orb i { position: absolute; border-radius: 50%; border: 1px solid rgba(96,208,255,.25); }
.particle-orb i:nth-child(1) { width: 64px; height: 64px; background: radial-gradient(circle, rgba(91,208,255,.24), transparent 66%); }
.particle-orb i:nth-child(2) { width: 100px; height: 100px; border-color: rgba(176,100,255,.20); animation: orbit-a 8s linear infinite; }
.particle-orb i:nth-child(3) { width: 126px; height: 126px; border-color: rgba(243,139,255,.12); transform: rotateX(65deg); animation: orbit-b 10s linear infinite; }
.lyrics-lines { display: grid; gap: 12px; margin-top: 43px; }
.lyrics-lines i { display: block; height: 18px; border-radius: 5px; background: linear-gradient(90deg, rgba(78,222,255,.08), rgba(127,137,255,.37), rgba(201,99,255,.08)); }
.lyrics-lines i:nth-child(1) { width: 70%; opacity: .42; }
.lyrics-lines i:nth-child(2) { width: 94%; opacity: 1; box-shadow: 0 0 24px rgba(88,184,255,.14); }
.lyrics-lines i:nth-child(3) { width: 56%; margin-left: 12%; opacity: .28; }

.desktop-panel {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  align-items: center;
  gap: 44px;
  padding: 55px;
  border: 1px solid var(--line);
  border-radius: 38px;
  background: radial-gradient(circle at 86% 24%, rgba(118,80,255,.16), transparent 35%), linear-gradient(145deg, rgba(255,255,255,.048), rgba(255,255,255,.017));
  overflow: hidden;
}
.desktop-copy ul { display: grid; gap: 11px; margin: 26px 0 0; padding: 0; list-style: none; color: #cbd4e4; font-size: 13px; }
.desktop-copy li::before { content: "↗"; margin-right: 9px; color: var(--cyan); }
.desktop-stage { position: relative; min-height: 430px; border: 1px solid rgba(255,255,255,.12); border-radius: 27px; overflow: hidden; background: #060b19; }
.desktop-planet { position: absolute; inset: -18%; background: conic-gradient(from 215deg at 50% 50%, #04122d, #1b285f, #7c35a8, #06162e); filter: blur(22px); animation: wallpaper-drift 13s ease-in-out infinite alternate; }
.desktop-stage::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 40% 44%, rgba(74,218,255,.25), transparent 24%), linear-gradient(130deg, rgba(8,14,31,.18), rgba(3,7,17,.58)); }
.desktop-icon-cloud { position: absolute; inset: 22px; z-index: 2; display: grid; grid-template-columns: repeat(6, 19px); align-content: start; gap: 20px; opacity: .24; }
.desktop-icon-cloud i { width: 19px; height: 15px; border: 1px solid #fff; border-radius: 3px; }
.desktop-lyric { position: absolute; z-index: 3; top: 43%; left: 8%; right: 8%; text-align: center; color: #f7f9ff; font-size: clamp(13px, 1.4vw, 18px); font-weight: 650; text-shadow: 0 0 28px rgba(98,220,255,.45); }
.mini-player { position: absolute; z-index: 4; left: 50%; bottom: 30px; width: 72%; padding: 13px; display: flex; align-items: center; gap: 11px; border: 1px solid rgba(255,255,255,.16); border-radius: 17px; background: rgba(8,13,27,.76); backdrop-filter: blur(20px); transform: translateX(-50%); }
.mini-player img { width: 44px; height: 44px; border-radius: 11px; }
.mini-player div { display: grid; gap: 3px; }
.mini-player strong { font-size: 11px; }
.mini-player small { color: #8996ac; font-size: 8px; }
.mini-wave { margin-left: auto; height: 28px; display: flex; align-items: end; gap: 3px; }
.mini-wave i { width: 3px; background: linear-gradient(to top, #5adfff, #bd72ff); animation: mini-eq 1s ease-in-out infinite alternate; }
.mini-wave i:nth-child(1) { height: 11px; }
.mini-wave i:nth-child(2) { height: 24px; animation-delay: -.3s; }
.mini-wave i:nth-child(3) { height: 17px; animation-delay: -.6s; }
.mini-wave i:nth-child(4) { height: 27px; animation-delay: -.15s; }

.mode-section { padding-top: 88px; }
.mode-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
.mode-card { position: relative; min-height: 330px; padding: 23px; display: flex; flex-direction: column; justify-content: flex-end; border: 1px solid var(--line); border-radius: 25px; overflow: hidden; }
.mode-card::before { content: ""; position: absolute; inset: 0; opacity: .68; transition: transform .5s; }
.mode-card:hover::before { transform: scale(1.06); }
.mode-card span { position: absolute; top: 20px; left: 21px; z-index: 2; color: rgba(255,255,255,.34); font: 700 9px/1 "Segoe UI", sans-serif; }
.mode-card strong, .mode-card small { position: relative; z-index: 2; }
.mode-card strong { font-size: 20px; letter-spacing: -.03em; }
.mode-card small { margin-top: 5px; color: rgba(255,255,255,.43); }
.mode-a::before { background: radial-gradient(circle at 35% 28%, rgba(74,216,255,.36), transparent 34%), linear-gradient(160deg,#0b1732,#1d2c65 55%,#040814); }
.mode-b::before { background: radial-gradient(circle at 62% 28%, rgba(255,110,179,.32), transparent 34%), linear-gradient(160deg,#1b0a23,#67265f 58%,#08040c); }
.mode-c::before { background: radial-gradient(circle at 45% 36%, rgba(143,100,255,.39), transparent 36%), linear-gradient(160deg,#0b0b22,#422a73 60%,#080914); }
.mode-d::before { background: radial-gradient(circle at 50% 24%, rgba(75,222,199,.30), transparent 34%), linear-gradient(160deg,#07191a,#244e4d 58%,#050a0c); }

.privacy-section { display: grid; grid-template-columns: 190px 1fr; align-items: center; gap: 50px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.privacy-core { width: 172px; height: 172px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.10); border-radius: 50%; color: rgba(146,220,255,.72); background: radial-gradient(circle, rgba(89,207,255,.17), transparent 62%); font-size: 74px; font-weight: 900; }
.privacy-section p { max-width: 720px; margin: 0; color: #9eabc0; line-height: 1.85; }

.download-section {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100vw - 48px));
  margin: 36px auto 90px;
  padding: 80px 30px;
  display: grid;
  justify-items: center;
  text-align: center;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 40px;
  overflow: hidden;
  background: radial-gradient(circle at 50% 12%, rgba(88,124,255,.23), transparent 46%), rgba(255,255,255,.022);
}
.download-aura { position: absolute; width: 560px; height: 270px; top: 5px; left: 50%; background: rgba(117,106,255,.22); filter: blur(80px); transform: translateX(-50%); }
.download-section > *:not(.download-aura) { position: relative; }
.download-icon { width: 112px; height: 112px; border-radius: 27px; box-shadow: 0 28px 74px rgba(0,0,0,.35), 0 0 60px rgba(125,99,255,.17); }
.download-section .section-kicker { margin-top: 23px; }
.download-section h2 { margin: 14px 0 12px; font-size: clamp(42px, 6vw, 78px); }
.download-section p { margin: 0; color: #a3afc4; line-height: 1.7; }
.download-cta-large { margin-top: 28px; min-width: 286px; }
.download-version { margin-top: 13px; color: #79dfff; font: 700 10px/1 "Segoe UI", sans-serif; letter-spacing: .13em; }
.download-note { margin-top: 12px; color: #7f8ba0; }

footer {
  position: relative;
  z-index: 2;
  width: min(1240px, calc(100vw - 48px));
  margin: 0 auto;
  padding: 26px 0 42px;
  display: flex;
  align-items: center;
  gap: 18px;
  border-top: 1px solid var(--line);
  color: #7e8aa0;
  font-size: 11px;
}
.footer-brand img { width: 31px; height: 31px; border-radius: 9px; }
footer p { margin: 0; }
footer > span:last-child { margin-left: auto; }

@keyframes pulse-dot { 0%,100% { opacity:.45; transform:scale(.84); } 50% { opacity:1; transform:scale(1.08); } }
@keyframes drift-a { to { transform: translate(8vw, 8vh) scale(1.15); } }
@keyframes drift-b { to { transform: translate(-8vw, 10vh) scale(1.2); } }
@keyframes breathe { 0%,100% { transform:scale(.94); opacity:.7; } 50% { transform:scale(1.07); opacity:1; } }
@keyframes orbit-a { to { transform: rotateX(72deg) rotateZ(372deg); } }
@keyframes orbit-b { to { transform: rotateX(68deg) rotateZ(344deg); } }
@keyframes ring-spin { to { transform: rotate(calc(var(--i) * 45deg + 360deg)) scale(calc(.75 + var(--i) * .045)); } }
@keyframes label-spin { to { transform: translate(-50%, -50%) rotate(351deg); } }
@keyframes core-float { 0%,100% { transform: perspective(1200px) rotateY(-8deg) rotateX(4deg) translateY(0); } 50% { transform: perspective(1200px) rotateY(-4deg) rotateX(2deg) translateY(-13px); } }
@keyframes card-float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
@keyframes spectrum { to { transform: scaleY(.48); opacity:.52; } }
@keyframes wave-line { to { transform: scaleY(.46); opacity:.48; } }
@keyframes mini-eq { from { transform:scaleY(.45); } to { transform:scaleY(1); } }
@keyframes wallpaper-drift { from { transform:scale(1) rotate(-2deg); } to { transform:scale(1.09) rotate(2deg); } }
@keyframes scroll-dot { 0%,100% { opacity:.25; transform:translate(-50%,0); } 50% { opacity:1; transform:translate(-50%,12px); } }

@media (max-width: 1080px) {
  .nav-links { display: none; }
  .nav-actions { margin-left: auto; }
  .hero { padding-top: 122px; }
  .hero-grid { grid-template-columns: 1fr; gap: 20px; }
  .hero-copy { text-align: center; }
  .eyebrow, .hero-actions, .trust-row { justify-content: center; }
  .hero-lede { margin-inline: auto; }
  .hero-title { font-size: clamp(64px, 11vw, 108px); }
  .hero-stage { min-height: 570px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-card-wide { grid-column: span 2; }
  .desktop-panel { grid-template-columns: 1fr; padding: 38px; }
  .mode-grid { grid-template-columns: 1fr 1fr; }
  .privacy-section { grid-template-columns: 1fr; justify-items: center; text-align: center; }
}

@media (max-width: 720px) {
  :root { --safe: 16px; }
  .topbar { top: 10px; width: calc(100vw - 20px); min-height: 58px; padding: 7px 8px 7px 10px; gap: 8px; }
  .brand img { width: 37px; height: 37px; }
  .brand-copy strong { font-size: 13px; }
  .brand-copy small { font-size: 7px; }
  .sound-toggle { display: none; }
  .language-pill { height: 36px; padding: 0 9px; }
  .nav-download { min-height: 38px; padding: 0 11px; font-size: 11px; }
  .nav-download svg { display: none; }
  .hero { min-height: auto; padding-top: 104px; padding-bottom: 62px; }
  .hero::before { background: linear-gradient(180deg, rgba(3,7,17,.35), rgba(3,7,17,.82) 77%); }
  .hero-title { margin-top: 18px; font-size: clamp(56px, 17vw, 82px); line-height: .9; }
  .hero-lede { max-width: 420px; font-size: 14px; }
  .hero-actions { margin-top: 24px; }
  .download-cta { min-height: 58px; }
  .ghost-cta { min-height: 50px; }
  .trust-row { font-size: 9px; }
  .hero-stage { min-height: 465px; }
  .brand-core { width: min(245px, 64vw); }
  .orbit-outer { width: 95%; }
  .orbit-inner { width: 76%; }
  .frequency-ring { width: 84%; }
  .brand-orbit-label { display: none; }
  .player-card { right: 5px; bottom: 5px; width: 63%; padding: 12px; }
  .stage-chip { padding: 8px 9px; }
  .stage-chip small { display: none; }
  .stage-chip-left { left: 0; top: 22%; }
  .stage-chip-right { right: 0; top: 12%; }
  .hero-rail { margin-top: 4px; gap: 12px; }
  .scroll-hint { display: none; }
  .section { width: calc(100vw - 28px); padding: 84px 0; }
  .section-title { margin-bottom: 32px; }
  .section-title h2, .desktop-copy h2, .privacy-section h2 { font-size: clamp(36px, 11vw, 54px); }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card-wide { grid-column: auto; display: block; }
  .feature-copy { max-width: none; }
  .wave-card { min-height: 180px; margin-top: 28px; }
  .feature-card { min-height: 300px; }
  .desktop-panel { padding: 28px 20px; border-radius: 28px; }
  .desktop-stage { min-height: 350px; }
  .mode-grid { grid-template-columns: 1fr; }
  .mode-card { min-height: 250px; }
  .download-section { width: calc(100vw - 28px); padding: 58px 18px; border-radius: 30px; margin-bottom: 60px; }
  .download-section h2 { font-size: clamp(38px, 12vw, 58px); }
  .download-cta-large { min-width: 0; width: 100%; max-width: 360px; }
  footer { width: calc(100vw - 28px); flex-wrap: wrap; }
  footer > span:last-child { width: 100%; margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  #audio-field { display: none; }
}