:root {
  --ink: #111827;
  --muted: #64748b;
  --line: rgba(15, 23, 42, 0.12);
  --teal: #17a398;
  --teal-dark: #0d6b62;
  --gold: #d9a441;
  --blue: #2f80ed;
  --paper: #f7fafc;
  --soft: #eef5fb;
  --black: #07090d;
  font-family:
    Inter, "SF Pro Display", "SF Pro Text", "Microsoft YaHei UI", "PingFang SC",
    "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: #ffffff;
  text-rendering: geometricPrecision;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: #ffffff;
}

section {
  scroll-margin-top: 92px;
}

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

.topbar {
  position: fixed;
  z-index: 20;
  top: 14px;
  left: 50%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  width: min(1120px, calc(100% - 32px));
  height: 54px;
  padding: 0 14px 0 12px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 999px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  transform: translateX(-50%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 760;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 10px;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 28px;
  color: rgba(17, 24, 39, 0.66);
  font-size: 13px;
  font-weight: 650;
}

.nav-links a,
.nav-action,
.hero-actions a {
  transition: color .18s ease, transform .18s ease, background .18s ease, border-color .18s ease;
}

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

.nav-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 96px;
  height: 34px;
  padding: 0 16px;
  color: #ffffff;
  background: var(--ink);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 720;
}

.nav-tools {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 3px;
  background: rgba(15, 23, 42, 0.06);
  border: 1px solid rgba(15, 23, 42, 0.07);
  border-radius: 999px;
}

.lang-switch button {
  display: inline-grid;
  place-items: center;
  min-width: 30px;
  height: 26px;
  padding: 0 8px;
  color: rgba(17, 24, 39, 0.58);
  background: transparent;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-size: 12px;
  font-weight: 760;
  cursor: pointer;
}

.lang-switch button:hover {
  color: var(--ink);
}

.lang-switch button.active {
  color: #ffffff;
  background: var(--ink);
}

.nav-action:hover {
  background: var(--teal-dark);
  transform: translateY(-1px);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  min-height: 100svh;
  padding: 118px 24px 48px;
  overflow: hidden;
}

#hero-canvas,
.hero-vignette {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-vignette {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.26), rgba(255, 255, 255, 0) 28%, rgba(255, 255, 255, 0.62) 100%),
    radial-gradient(circle at 50% 42%, rgba(255, 255, 255, 0) 0, rgba(255, 255, 255, 0.78) 68%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(920px, 100%);
  margin: 0 auto;
  text-align: center;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 780;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  width: min(820px, 100%);
  margin: 0 auto;
  font-size: 76px;
  line-height: 1.02;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero-copy {
  width: min(700px, 100%);
  margin: 28px auto 0;
  color: rgba(17, 24, 39, 0.74);
  font-size: 20px;
  line-height: 1.6;
  font-weight: 520;
}

.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-facts {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-top: 30px;
}

.hero-facts span {
  display: grid;
  gap: 3px;
  min-width: 142px;
  padding: 0 24px;
  border-right: 1px solid rgba(15, 23, 42, 0.12);
}

.hero-facts span:last-child {
  border-right: 0;
}

.hero-facts strong {
  color: var(--ink);
  font-size: 18px;
}

.hero-facts em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 680;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 760;
}

.primary-action {
  color: #ffffff;
  background: var(--ink);
}

.secondary-action {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(15, 23, 42, 0.12);
}

.primary-action:hover,
.secondary-action:hover {
  transform: translateY(-2px);
}

.primary-action:hover {
  background: var(--teal-dark);
}

.secondary-action:hover {
  border-color: rgba(23, 163, 152, 0.36);
}

.hero-device {
  position: relative;
  z-index: 3;
  width: min(980px, 94vw);
  margin: 58px auto 0;
  perspective: 1600px;
}

.device-frame {
  overflow: hidden;
  min-height: 372px;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.94), rgba(245, 250, 253, 0.78)),
    linear-gradient(120deg, rgba(23, 163, 152, 0.12), rgba(217, 164, 65, 0.1));
  border: 1px solid rgba(255, 255, 255, 0.84);
  border-radius: 30px;
  box-shadow:
    0 34px 110px rgba(15, 23, 42, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  transform: rotateX(calc(7deg + var(--device-y, 0deg))) rotateY(var(--device-x, 0deg));
  transition: transform .25s ease-out;
}

.window-bar {
  display: flex;
  gap: 8px;
  align-items: center;
  height: 42px;
  padding: 0 18px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.window-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #d8e2eb;
}

.window-bar span:first-child {
  background: #ff6b5f;
}

.window-bar span:nth-child(2) {
  background: #f4be4f;
}

.window-bar span:nth-child(3) {
  background: #58c26b;
}

.screen-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 120px;
  gap: 16px;
  min-height: 330px;
  padding: 18px;
}

.song-list,
.stage-preview,
.mixer-panel,
.signal-card,
.license-panel,
.story-grid article {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 18px;
  box-shadow: 0 12px 38px rgba(15, 23, 42, 0.06);
}

.song-list {
  padding: 14px;
}

.mini-title {
  width: 64px;
  height: 8px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: #b9c7d5;
}

.song-row {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  align-items: center;
  height: 48px;
  margin-bottom: 9px;
  padding: 0 10px;
  color: #617083;
  border-radius: 12px;
}

.song-row.active {
  color: var(--ink);
  background: #eef8f7;
}

.song-row span {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: linear-gradient(145deg, var(--teal), var(--blue));
}

.song-row strong {
  overflow: hidden;
  font-size: 12px;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.stage-preview {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 28px;
  text-align: center;
}

.stage-preview::before {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, transparent 0 7px, rgba(47, 128, 237, 0.025) 7px 8px);
  content: "";
  pointer-events: none;
}

.playhead {
  position: absolute;
  z-index: 2;
  top: 78px;
  bottom: 28px;
  left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(23, 163, 152, 0.75), transparent);
  box-shadow: 0 0 18px rgba(23, 163, 152, 0.55);
}

.status-line {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 36px;
}

.status-line span {
  padding: 7px 11px;
  color: var(--teal-dark);
  background: rgba(23, 163, 152, 0.1);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 780;
}

.lyric-line {
  color: #8a99aa;
  font-size: 18px;
  line-height: 1.4;
}

.lyric-line.active {
  margin-top: 8px;
  color: var(--ink);
  font-size: 28px;
  font-weight: 820;
}

.melody-bars {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 34px;
}

.melody-bars i {
  display: block;
  width: 46px;
  height: 6px;
  border-radius: 999px;
  background: var(--teal);
}

.melody-bars i:nth-child(2),
.melody-bars i:nth-child(6) {
  transform: translateY(-10px);
}

.melody-bars i:nth-child(4) {
  transform: translateY(9px);
  background: var(--gold);
}

.mixer-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  align-items: end;
  padding: 18px 14px;
}

.meter {
  position: relative;
  overflow: hidden;
  height: 240px;
  border-radius: 999px;
  background: #eef3f7;
}

.meter span {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, #59e5d6, #17a398 60%, #d9a441);
}

.meter:nth-child(1) span { animation: meter-pulse 1.8s ease-in-out infinite alternate; }
.meter:nth-child(2) span { animation: meter-pulse 1.35s ease-in-out .18s infinite alternate-reverse; }
.meter:nth-child(3) span { animation: meter-pulse 1.55s ease-in-out .3s infinite alternate; }
.meter:nth-child(4) span { animation: meter-pulse 2.1s ease-in-out .12s infinite alternate-reverse; }

@keyframes meter-pulse {
  from { transform: scaleY(.72); transform-origin: bottom; }
  to { transform: scaleY(1); transform-origin: bottom; }
}

.intro-band {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, .65fr);
  gap: 80px;
  align-items: end;
  min-height: 420px;
  padding: 104px max(24px, calc((100vw - 1120px) / 2));
  background: #ffffff;
}

.intro-heading h2 {
  max-width: 720px;
  margin: 0;
  font-size: 56px;
  line-height: 1.08;
  text-wrap: balance;
}

.intro-copy {
  max-width: 430px;
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.capability-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto 72px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.capability-strip article {
  min-height: 210px;
  padding: 28px 26px;
  border-right: 1px solid var(--line);
}

.capability-strip article:last-child {
  border-right: 0;
}

.capability-strip span,
.option-index {
  color: var(--teal);
  font-size: 12px;
  font-weight: 840;
}

.capability-strip strong {
  display: block;
  margin-top: 52px;
  font-size: 22px;
}

.capability-strip p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.feature-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 80px;
  align-items: center;
  min-height: 680px;
  padding: 96px max(24px, calc((100vw - 1120px) / 2));
  opacity: 1;
  transform: translateY(0);
  transition: opacity .7s ease, transform .7s ease;
}

.section-copy {
  max-width: 520px;
}

.feature-section.dark .section-copy {
  justify-self: end;
}

.feature-section.visible,
.story-grid article.visible,
.download-section.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-section.light {
  background: var(--paper);
}

.feature-section.dark {
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  color: #ffffff;
  background:
    linear-gradient(180deg, #080b10, #111827 56%, #07090d);
}

.modes-section {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(520px, 1.18fr);
  gap: 72px;
  align-items: center;
  min-height: 820px;
  padding: 110px max(24px, calc((100vw - 1120px) / 2));
  color: #fff;
  background: #07090d;
}

.modes-heading h2,
.routing-options-heading h2 {
  margin: 0;
  font-size: 56px;
  line-height: 1.08;
  text-wrap: balance;
}

.modes-heading > p:last-child {
  margin: 24px 0 0;
  color: rgba(255, 255, 255, .66);
  font-size: 18px;
  line-height: 1.65;
}

.mode-console {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.mode-orbit {
  position: relative;
  display: grid;
  place-items: center;
  width: 230px;
  aspect-ratio: 1;
}

.mode-orbit::before,
.mode-orbit::after,
.mode-orbit i {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 50%;
  content: "";
}

.mode-orbit::before { inset: 0; }
.mode-orbit::after { inset: 32px; border-color: rgba(23, 163, 152, .35); }
.mode-orbit i:nth-of-type(1) { inset: 64px; border-color: rgba(217, 164, 65, .42); }
.mode-orbit i:nth-of-type(2) {
  top: 12px;
  left: 50%;
  width: 10px;
  height: 10px;
  border: 0;
  background: var(--teal);
  box-shadow: 0 0 22px rgba(86, 234, 217, .8);
  animation: orbit-spin 6s linear infinite;
  transform-origin: 0 103px;
}
.mode-orbit i:nth-of-type(3) { display: none; }

.orbit-core {
  display: grid;
  place-items: center;
  width: 104px;
  height: 104px;
  background: linear-gradient(145deg, #172330, #0b1119);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 50%;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .44), inset 0 0 24px rgba(23, 163, 152, .12);
  font-size: 14px;
  font-weight: 820;
}

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

.mode-list {
  border-top: 1px solid rgba(255, 255, 255, .12);
}

.mode-list article {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  min-height: 112px;
  padding: 22px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  opacity: .46;
  transition: opacity .25s ease, padding-left .25s ease, background .25s ease;
}

.mode-list article.active,
.mode-list article:hover {
  padding-left: 20px;
  background: linear-gradient(90deg, rgba(23, 163, 152, .12), transparent);
  opacity: 1;
}

.mode-list article > span {
  color: var(--teal);
  font-size: 12px;
  font-weight: 840;
}

.mode-list strong { font-size: 21px; }
.mode-list p { margin: 7px 0 0; color: rgba(255, 255, 255, .58); font-size: 13px; line-height: 1.5; }

.section-copy h2,
.story-heading h2,
.download-heading h2 {
  margin: 0;
  font-size: 58px;
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-copy p:last-child,
.download-heading p:last-of-type {
  max-width: 540px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.dark .section-copy p:last-child {
  color: rgba(255, 255, 255, 0.72);
}

.feature-visual,
.routing-visual {
  min-height: 420px;
}

.mic-visual {
  display: grid;
  place-items: center;
}

.signal-card {
  width: min(520px, 100%);
  padding: 26px;
  background: rgba(255, 255, 255, 0.82);
}

.signal-header,
.signal-grid,
.license-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.signal-header span,
.signal-grid span,
.license-row span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 680;
}

.signal-header strong {
  font-size: 34px;
}

.signal-wave {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 150px;
  margin: 26px 0;
  padding: 0 8px;
  background: #f4f8fb;
  border-radius: 16px;
}

.signal-wave span {
  width: 12px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--gold), var(--teal));
}

.signal-wave span:nth-child(1) { height: 34px; }
.signal-wave span:nth-child(2) { height: 58px; }
.signal-wave span:nth-child(3) { height: 92px; }
.signal-wave span:nth-child(4) { height: 120px; }
.signal-wave span:nth-child(5) { height: 74px; }
.signal-wave span:nth-child(6) { height: 42px; }
.signal-wave span:nth-child(7) { height: 66px; }
.signal-wave span:nth-child(8) { height: 128px; }
.signal-wave span:nth-child(9) { height: 104px; }
.signal-wave span:nth-child(10) { height: 70px; }
.signal-wave span:nth-child(11) { height: 48px; }
.signal-wave span:nth-child(12) { height: 84px; }

.signal-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px 20px;
}

.routing-visual {
  display: grid;
  gap: 34px;
  align-content: center;
  width: 100%;
  padding: 34px 20px;
}

.node {
  display: grid;
  place-items: center;
  width: 112px;
  height: 112px;
  border-radius: 24px;
  font-weight: 860;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
}

.app-node {
  background: linear-gradient(145deg, #ffffff, #d9f9f5);
  color: var(--teal-dark);
}

.daw-node {
  background: linear-gradient(145deg, #fff2c9, #d9a441);
  color: #4a3208;
}

.route-core {
  display: grid;
  grid-template-columns: 112px minmax(100px, 1fr) 112px;
  gap: 0;
  align-items: center;
  width: min(560px, 100%);
  margin: 0 auto;
}

.route-lines {
  display: grid;
  gap: 16px;
  padding: 0 10px;
}

.route-lines i {
  display: block;
  height: 1px;
  background: linear-gradient(90deg, rgba(23, 163, 152, .25), #17a398 28%, #d9a441 78%, rgba(217, 164, 65, .35));
  box-shadow: 0 0 12px rgba(23, 163, 152, .16);
}

.route-lines i:nth-child(2) { opacity: .82; }
.route-lines i:nth-child(3) { opacity: .64; }
.route-lines i:nth-child(4) { opacity: .46; }

.bus-stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 12px;
  width: min(420px, calc(100% - 80px));
  margin-left: auto;
}

.bus-stack span {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 11px 14px;
  color: rgba(255, 255, 255, 0.84);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 760;
}

.bus-stack span i {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 10px rgba(86, 234, 217, .55);
}

.bus-stack span:nth-child(2) i { background: var(--gold); box-shadow: 0 0 10px rgba(217, 164, 65, .5); }
.bus-stack span:nth-child(3) i { background: var(--blue); box-shadow: 0 0 10px rgba(47, 128, 237, .5); }
.bus-stack span:nth-child(4) i { background: #a9b8c8; box-shadow: none; }

.routing-options {
  padding: 112px max(24px, calc((100vw - 1120px) / 2));
  background: #fff;
}

.routing-options-heading {
  width: min(820px, 100%);
}

.routing-option-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 52px;
}

.routing-option-grid article {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 320px;
  padding: 28px;
  overflow: hidden;
  background: #f7fafc;
  border: 1px solid rgba(15, 23, 42, .08);
  border-radius: 8px;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.routing-option-grid article:hover {
  border-color: rgba(23, 163, 152, .34);
  box-shadow: 0 24px 64px rgba(15, 23, 42, .1);
  transform: translateY(-5px);
}

.routing-option-grid article.recommended {
  color: #fff;
  background: #101820;
}

.routing-option-grid article.recommended::after {
  position: absolute;
  top: -80px;
  right: -70px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(86, 234, 217, .28);
  border-radius: 50%;
  content: "";
}

.routing-option-grid strong {
  margin-top: 70px;
  font-size: 28px;
}

.routing-option-grid p {
  margin: 14px 0 24px;
  color: var(--muted);
  line-height: 1.65;
}

.routing-option-grid .recommended p { color: rgba(255, 255, 255, .65); }
.routing-option-grid em { margin-top: auto; color: var(--teal-dark); font-size: 12px; font-style: normal; font-weight: 800; }
.routing-option-grid .recommended em { color: #59e5d6; }

.story-section {
  padding: 112px max(24px, calc((100vw - 1120px) / 2));
  background: #ffffff;
}

.story-heading {
  width: min(760px, 100%);
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 48px;
}

.story-grid article {
  min-height: 260px;
  padding: 28px;
  opacity: 1;
  transform: translateY(0);
  transition: opacity .7s ease, transform .7s ease;
}

.story-grid span {
  color: var(--teal);
  font-size: 13px;
  font-weight: 840;
}

.story-grid h3 {
  margin: 54px 0 12px;
  font-size: 28px;
}

.story-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
}

.security-section {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.78fr);
}

.license-panel {
  position: relative;
  overflow: hidden;
  padding: 28px;
}

.license-row {
  min-height: 58px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.license-row:last-of-type {
  border-bottom: 0;
}

.license-row strong {
  color: var(--teal-dark);
}

.license-pulse {
  width: 100%;
  height: 120px;
  margin-top: 18px;
  border-radius: 16px;
  background:
    linear-gradient(90deg, rgba(23, 163, 152, 0.06), rgba(47, 128, 237, 0.08), rgba(217, 164, 65, 0.1)),
    repeating-linear-gradient(90deg, rgba(15, 23, 42, 0.08) 0 1px, transparent 1px 28px);
}

.download-section {
  display: grid;
  place-items: center;
  min-height: 680px;
  padding: 112px 24px;
  text-align: center;
  background:
    linear-gradient(180deg, #ffffff, #f5faf9 56%, #ffffff);
  opacity: 1;
  transform: translateY(0);
  transition: opacity .7s ease, transform .7s ease;
}

.download-heading {
  width: min(820px, 100%);
}

.download-heading img {
  width: 86px;
  height: 86px;
  margin-bottom: 28px;
  border-radius: 22px;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.14);
}

.download-heading p:last-of-type {
  margin-left: auto;
  margin-right: auto;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  width: min(960px, 100%);
  margin-top: 42px;
}

.download-card {
  display: grid;
  gap: 12px;
  min-height: 190px;
  padding: 24px;
  text-align: left;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 18px;
  box-shadow: 0 18px 52px rgba(15, 23, 42, 0.08);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.download-card:hover {
  border-color: rgba(23, 163, 152, 0.32);
  box-shadow: 0 24px 66px rgba(15, 23, 42, 0.12);
  transform: translateY(-3px);
}

.download-card.primary-download {
  color: #ffffff;
  background:
    linear-gradient(145deg, rgba(23, 163, 152, 0.95), rgba(17, 24, 39, 0.96)),
    #111827;
}

.download-type {
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 820;
  text-transform: uppercase;
}

.primary-download .download-type {
  color: rgba(255, 255, 255, 0.72);
}

.download-card strong {
  font-size: 26px;
  line-height: 1.12;
}

.download-card em {
  align-self: end;
  color: var(--muted);
  font-style: normal;
  font-size: 14px;
  font-weight: 680;
}

.primary-download em {
  color: rgba(255, 255, 255, 0.72);
}

.download-note {
  width: min(760px, 100%);
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.compatibility-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  margin-top: 28px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 720;
}

.compatibility-row span {
  padding: 0 16px;
  border-right: 1px solid var(--line);
}

.compatibility-row span:last-child { border-right: 0; }

.site-footer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
  min-height: 120px;
  padding: 28px max(24px, calc((100vw - 1120px) / 2));
  color: rgba(255, 255, 255, .58);
  background: #07090d;
  font-size: 12px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}

.footer-brand img { width: 34px; height: 34px; border-radius: 8px; }
.site-footer p { margin: 0; text-align: center; }

@media (max-width: 900px) {
  .topbar {
    grid-template-columns: auto auto;
    justify-content: space-between;
    gap: 12px;
  }

  .nav-links {
    display: none;
  }

  .nav-tools {
    gap: 8px;
  }

  .hero {
    padding-top: 104px;
  }

  .hero h1 { font-size: 60px; }
  .intro-heading h2 { font-size: 48px; }
  .section-copy h2,
  .story-heading h2,
  .download-heading h2,
  .modes-heading h2,
  .routing-options-heading h2 { font-size: 48px; }

  .screen-layout,
  .feature-section,
  .feature-section.dark,
  .security-section,
  .story-grid,
  .download-grid,
  .modes-section,
  .routing-option-grid {
    grid-template-columns: 1fr;
  }

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

  .intro-band {
    grid-template-columns: 1fr;
    gap: 28px;
    min-height: 0;
    padding-top: 82px;
    padding-bottom: 82px;
  }

  .intro-copy {
    max-width: 640px;
  }

  .capability-strip article:nth-child(2) { border-right: 0; }
  .capability-strip article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }

  .screen-layout {
    min-height: 0;
  }

  .mixer-panel {
    min-height: 120px;
  }

  .meter {
    height: 110px;
  }

  .feature-section {
    gap: 34px;
    min-height: 0;
    padding-top: 76px;
    padding-bottom: 76px;
  }

  .modes-section {
    gap: 48px;
    min-height: 0;
    padding-top: 84px;
    padding-bottom: 84px;
  }

  .mode-console {
    grid-template-columns: 190px minmax(0, 1fr);
  }

  .mode-orbit { width: 190px; }

  .routing-options { padding-top: 84px; padding-bottom: 84px; }

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

  .bus-stack {
    width: min(420px, 100%);
    margin: 0 auto;
  }
}

@media (max-width: 560px) {
  .topbar {
    top: 10px;
    width: calc(100% - 20px);
    height: 50px;
  }

  .brand span {
    display: none;
  }

  .nav-action {
    min-width: 84px;
    padding: 0 12px;
  }

  .lang-switch {
    height: 32px;
  }

  .lang-switch button {
    min-width: 26px;
    height: 24px;
    padding: 0 6px;
  }

  .hero h1 {
    font-size: 42px;
    line-height: 1.04;
  }

  .hero-copy {
    font-size: 18px;
    line-height: 1.5;
  }

  .hero-facts span {
    min-width: 0;
    padding: 0 12px;
  }

  .hero-facts em { font-size: 10px; }

  .hero-device {
    width: 100%;
  }

  .device-frame {
    min-height: 0;
    border-radius: 22px;
    transform: none;
  }

  .screen-layout {
    padding: 12px;
  }

  .song-list,
  .mixer-panel {
    display: none;
  }

  .stage-preview {
    min-height: 260px;
  }

  .melody-bars i {
    width: 28px;
  }

  .intro-heading h2 { font-size: 40px; }
  .intro-copy { font-size: 16px; }

  .capability-strip {
    grid-template-columns: 1fr;
    width: calc(100% - 32px);
  }

  .capability-strip article {
    min-height: 170px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .capability-strip article:last-child { border-bottom: 0; }
  .capability-strip strong { margin-top: 34px; }

  .mode-console { grid-template-columns: 1fr; }
  .mode-orbit { justify-self: center; }
  .mode-list article { min-height: 100px; }

  .section-copy h2,
  .story-heading h2,
  .download-heading h2,
  .modes-heading h2,
  .routing-options-heading h2 { font-size: 40px; }

  .section-copy p:last-child,
  .download-heading p:last-of-type,
  .modes-heading > p:last-child { font-size: 16px; }

  .route-core {
    grid-template-columns: 86px minmax(48px, 1fr) 86px;
  }

  .node {
    width: 86px;
    height: 86px;
    border-radius: 18px;
    font-size: 13px;
  }

  .bus-stack {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .download-section {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 16px;
    text-align: center;
  }

  .footer-brand { justify-self: center; }
  .compatibility-row span { padding: 0 9px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }

  .mode-orbit i:nth-of-type(2),
  .meter span {
    animation: none !important;
  }
}