:root {
  color-scheme: dark;
  --bg: #06100c;
  --bg-2: #081814;
  --surface: rgba(255, 255, 255, 0.075);
  --surface-strong: rgba(255, 255, 255, 0.12);
  --line: rgba(214, 255, 223, 0.16);
  --text: #f4fff7;
  --muted: #a8b8ad;
  --soft: #d7f7dd;
  --green: #a7ff32;
  --green-2: #37f58d;
  --green-3: #0fae63;
  --black: #030705;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.48);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 14px;
  --container: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 15% 5%, rgba(167, 255, 50, 0.18), transparent 30%),
    radial-gradient(circle at 85% 10%, rgba(55, 245, 141, 0.14), transparent 32%),
    linear-gradient(180deg, #020504 0%, var(--bg) 42%, #030806 100%);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--green);
  color: var(--black);
  transform: translateY(-140%);
  transition: transform 0.2s ease;
}

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

:focus-visible {
  outline: 3px solid rgba(167, 255, 50, 0.72);
  outline-offset: 4px;
}

.container {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}

.section-pad {
  padding: 96px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(214, 255, 223, 0.1);
  background: rgba(2, 5, 4, 0.76);
  backdrop-filter: blur(22px);
}

.nav-shell {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.brand-logo {
  width: 176px;
  height: auto;
  object-fit: contain;
}

.side-brand-logo {
  width: 168px;
}

.footer-logo {
  width: 158px;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
}

.top-nav a,
.nav-cta {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.top-nav a {
  padding: 0 15px;
}

.top-nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.nav-cta {
  padding: 0 18px;
  background: rgba(167, 255, 50, 0.12);
  color: var(--green);
  border: 1px solid rgba(167, 255, 50, 0.28);
  font-weight: 760;
}

.nav-cta:hover {
  transform: translateY(-1px);
  background: rgba(167, 255, 50, 0.2);
}

.hero {
  position: relative;
  min-height: calc(92svh - 76px);
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 80% 45%, rgba(167, 255, 50, 0.12), transparent 30%),
    linear-gradient(90deg, rgba(2, 5, 4, 0.97) 0%, rgba(2, 5, 4, 0.88) 42%, rgba(2, 5, 4, 0.72) 100%),
    url("/assets/images/hero-soundscape.webp") center / cover no-repeat;
  opacity: 0.82;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 240px;
  background: linear-gradient(180deg, transparent, var(--bg));
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(400px, 0.82fr) minmax(520px, 1.18fr);
  align-items: center;
  gap: 56px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.section-head h2,
.guide h2 {
  margin: 0;
  letter-spacing: -0.06em;
  line-height: 1.05;
}

.hero h1 {
  max-width: 620px;
  font-size: clamp(42px, 4.8vw, 70px);
  text-wrap: balance;
}

.hero-lead {
  max-width: 560px;
  margin: 22px 0 0;
  color: var(--soft);
  font-size: clamp(17px, 1.35vw, 20px);
}

.download-panel {
  width: min(100%, 500px);
  margin-top: 30px;
  padding: 12px;
  border: 1px solid rgba(214, 255, 223, 0.14);
  border-radius: 28px;
  background: rgba(2, 8, 5, 0.58);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.download-primary {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--green), var(--green-2));
  color: #061006;
  font-weight: 820;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.download-primary:hover,
.version-card a:hover,
.download-secondary a:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.download-primary svg,
.download-secondary svg,
.side-link svg,
.search-box svg,
.album-meta button svg,
.controls svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  flex: 0 0 auto;
}

.download-primary span {
  display: grid;
  gap: 2px;
}

.download-primary small {
  font-size: 12px;
  font-weight: 700;
  opacity: 0.72;
}

.download-secondary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
}

.download-secondary a {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  transition: transform 0.2s ease, background 0.2s ease;
}

.download-secondary a:hover {
  background: rgba(255, 255, 255, 0.13);
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
  color: var(--soft);
}

.trust-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.trust-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 18px rgba(167, 255, 50, 0.8);
}

.hero-device {
  position: relative;
  min-width: 0;
  padding: 18px;
  border: 1px solid rgba(214, 255, 223, 0.11);
  border-radius: 44px;
  background:
    radial-gradient(circle at 30% 0%, rgba(167, 255, 50, 0.14), transparent 40%),
    rgba(255, 255, 255, 0.035);
  box-shadow: 0 30px 110px rgba(0, 0, 0, 0.42);
}

.device-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(214, 255, 223, 0.16);
  border-radius: 30px;
  background: #09110d;
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.38);
}

.device-toolbar {
  display: flex;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(214, 255, 223, 0.1);
  background: rgba(0, 0, 0, 0.28);
}

.device-toolbar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.24);
}

.device-toolbar span:nth-child(1) {
  background: #ff665f;
}

.device-toolbar span:nth-child(2) {
  background: #ffbd44;
}

.device-toolbar span:nth-child(3) {
  background: #2cdb5d;
}

.device-frame img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9.6;
  object-fit: cover;
  object-position: center top;
  opacity: 0.98;
}

.device-frame::before {
  content: "";
  position: absolute;
  inset: 41px 0 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0) 38%, rgba(2, 5, 4, 0.82) 100%),
    linear-gradient(90deg, rgba(2, 5, 4, 0.58), transparent 44%);
  pointer-events: none;
}

.device-overlay {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 22px;
  z-index: 2;
  display: grid;
  gap: 5px;
}

.device-overlay span,
.tag {
  width: max-content;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(167, 255, 50, 0.15);
  color: var(--green);
  font-size: 12px;
  font-weight: 850;
}

.device-overlay strong {
  max-width: 520px;
  font-size: clamp(22px, 2.2vw, 34px);
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.device-overlay small {
  color: var(--muted);
}

.floating-card {
  position: absolute;
  right: 0;
  bottom: -18px;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 13px;
  min-width: 210px;
  padding: 16px;
  border: 1px solid rgba(214, 255, 223, 0.18);
  border-radius: 20px;
  background: rgba(7, 22, 14, 0.88);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(16px);
}

.floating-card-top {
  right: auto;
  left: 0;
  top: 54px;
  bottom: auto;
  min-width: 176px;
}

.floating-card > span {
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent),
    linear-gradient(135deg, var(--green), var(--green-3));
}

.floating-card > .pulse-dot {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--green) 0 34%, rgba(167, 255, 50, 0.22) 36% 100%);
}

.floating-card > .album-dot {
  background:
    radial-gradient(circle at 65% 35%, rgba(255, 255, 255, 0.28), transparent 24%),
    linear-gradient(135deg, var(--green), var(--green-3));
}

.floating-card strong,
.floating-card small {
  display: block;
}

.floating-card small {
  color: var(--muted);
}

.section-head {
  max-width: 760px;
  margin: 0 auto 44px;
  text-align: center;
}

.section-head.narrow {
  max-width: 680px;
}

.section-head h2,
.guide h2 {
  font-size: clamp(34px, 4vw, 56px);
}

.section-head p:not(.eyebrow) {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.player-section {
  background:
    radial-gradient(circle at 50% 0%, rgba(167, 255, 50, 0.1), transparent 32%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
}

.sound-desk {
  display: grid;
  grid-template-columns: 260px 1fr;
  overflow: hidden;
  min-height: 640px;
  border: 1px solid rgba(214, 255, 223, 0.18);
  border-radius: 34px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035));
  box-shadow: var(--shadow);
}

.sound-sidebar {
  padding: 26px 22px;
  border-right: 1px solid rgba(214, 255, 223, 0.1);
  background: rgba(2, 8, 5, 0.38);
}

.traffic {
  display: flex;
  gap: 8px;
  margin-bottom: 48px;
}

.traffic span {
  width: 13px;
  height: 13px;
  border-radius: 50%;
}

.traffic span:nth-child(1) {
  background: #ff665f;
}

.traffic span:nth-child(2) {
  background: #ffbd44;
}

.traffic span:nth-child(3) {
  background: #2cdb5d;
}

.side-logo {
  display: flex;
  align-items: center;
  margin-bottom: 34px;
}

.side-link {
  min-height: 50px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  border-radius: 15px;
  color: var(--muted);
  font-weight: 760;
}

.side-link + .side-link {
  margin-top: 8px;
}

.side-link.active,
.side-link:hover {
  background: rgba(167, 255, 50, 0.12);
  color: var(--text);
}

.sound-main {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-width: 0;
}

.sound-topbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  padding: 24px 28px;
}

.search-box {
  width: min(100%, 360px);
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
  color: #c6d6cb;
}

.vip-chip,
.mode {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(167, 255, 50, 0.15);
  color: var(--green);
  font-weight: 900;
}

.lyrics-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.86fr) minmax(280px, 1fr);
  align-items: center;
  gap: 64px;
  padding: 20px 64px 56px;
}

.album-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 24px;
  border: 1px solid rgba(214, 255, 223, 0.16);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}

.album-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 20px;
}

.album-meta strong,
.album-meta span {
  display: block;
}

.album-meta strong {
  font-size: 24px;
  letter-spacing: -0.04em;
}

.album-meta span {
  color: var(--muted);
}

.album-meta button,
.controls button {
  min-width: 48px;
  min-height: 48px;
  display: inline-grid;
  place-items: center;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
}

.album-meta button {
  color: var(--green);
}

.album-meta button:hover,
.controls button:hover {
  transform: scale(1.04);
  background: rgba(255, 255, 255, 0.16);
}

.lyrics-list {
  display: grid;
  gap: 18px;
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 850;
  letter-spacing: -0.055em;
  color: rgba(244, 255, 247, 0.24);
}

.lyrics-list p {
  margin: 0;
}

.lyrics-list .active {
  color: var(--text);
  text-shadow: 0 0 34px rgba(167, 255, 50, 0.28);
}

.player-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 20px;
  padding: 20px 32px 28px;
  border-top: 1px solid rgba(214, 255, 223, 0.1);
  color: var(--muted);
}

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

.controls .play {
  min-width: 68px;
  min-height: 58px;
  background: rgba(167, 255, 50, 0.18);
  color: var(--green);
}

.mode {
  justify-self: end;
}

.feature-grid,
.version-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-grid article,
.version-card,
.faq details,
.steps li {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18);
}

.feature-grid article {
  padding: 28px;
  min-height: 250px;
}

.feature-index {
  display: block;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.feature-grid h3,
.version-card h3 {
  margin: 42px 0 12px;
  font-size: 25px;
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.feature-grid p,
.version-card p,
.site-footer p {
  margin: 0;
  color: var(--muted);
}

.versions {
  background: rgba(255, 255, 255, 0.025);
}

.version-card {
  min-height: 310px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 26px;
}

.version-card.featured {
  background:
    linear-gradient(135deg, rgba(167, 255, 50, 0.17), transparent 64%),
    var(--surface-strong);
}

.tag.muted {
  color: var(--soft);
  background: rgba(255, 255, 255, 0.1);
}

.version-card a {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--text);
  color: var(--black);
  font-weight: 850;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.version-card.featured a {
  background: linear-gradient(135deg, var(--green), var(--green-2));
}

.guide-grid {
  display: grid;
  grid-template-columns: 0.6fr 1fr;
  gap: 54px;
  align-items: start;
}

.steps {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 22px 22px 22px 72px;
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 22px;
  top: 22px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(167, 255, 50, 0.15);
  color: var(--green);
  font-weight: 900;
}

.steps strong {
  font-size: 18px;
}

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

.faq-list {
  display: grid;
  gap: 14px;
  max-width: 860px;
  margin: 0 auto;
}

.articles-section {
  background:
    radial-gradient(circle at 18% 0%, rgba(167, 255, 50, 0.1), transparent 30%),
    rgba(255, 255, 255, 0.018);
}

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

.article-card {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.065);
  box-shadow: 0 18px 56px rgba(0, 0, 0, 0.18);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: rgba(167, 255, 50, 0.34);
  background: rgba(255, 255, 255, 0.09);
}

.article-card time {
  color: var(--green);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.05em;
}

.article-card h3 {
  margin: 18px 0 12px;
  color: var(--text);
  font-size: 21px;
  line-height: 1.25;
  letter-spacing: -0.035em;
}

.article-card h3 a {
  min-height: 44px;
  display: inline-flex;
  align-items: flex-start;
}

.article-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.read-more {
  width: max-content;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  margin-top: auto;
  color: var(--green);
  font-weight: 850;
}

.read-more::after {
  content: "→";
  margin-left: 8px;
}

.article-page {
  background:
    radial-gradient(circle at 50% 0%, rgba(167, 255, 50, 0.12), transparent 36%),
    linear-gradient(180deg, #020504, var(--bg));
}

.article-layout {
  max-width: 920px;
  padding-top: 72px;
  padding-bottom: 96px;
}

.breadcrumb {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--soft);
}

.breadcrumb a:hover {
  color: var(--green);
}

.article-hero {
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(167, 255, 50, 0.12), transparent 52%),
    rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
}

.article-hero h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.055em;
}

.article-hero p {
  margin: 18px 0 0;
  color: var(--soft);
  font-size: 18px;
}

.article-hero time {
  display: inline-flex;
  margin-top: 24px;
  color: var(--green);
  font-weight: 850;
}

.article-content {
  margin-top: 38px;
  padding: 42px;
  border: 1px solid rgba(214, 255, 223, 0.12);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.04);
}

.article-content h2 {
  margin: 34px 0 12px;
  font-size: 28px;
  line-height: 1.22;
  letter-spacing: -0.04em;
}

.article-content h2:first-child {
  margin-top: 0;
}

.article-content p,
.article-content li {
  color: #d4e7d9;
  font-size: 17px;
  line-height: 1.85;
}

.article-content ul {
  padding-left: 22px;
}

.article-cta {
  margin-top: 38px;
  padding: 26px;
  border: 1px solid rgba(167, 255, 50, 0.25);
  border-radius: var(--radius-md);
  background: rgba(167, 255, 50, 0.1);
}

.article-cta strong {
  display: block;
  font-size: 22px;
}

.article-cta p {
  margin: 8px 0 18px;
}

.article-cta a {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--green), var(--green-2));
  color: var(--black);
  font-weight: 900;
}

.faq details {
  padding: 0;
}

.faq summary {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 850;
  list-style: none;
}

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

.faq summary::after {
  content: "+";
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(167, 255, 50, 0.13);
  color: var(--green);
  flex: 0 0 auto;
}

.faq details[open] summary::after {
  content: "−";
}

.faq p {
  margin: 0;
  padding: 0 22px 22px;
  color: var(--muted);
}

.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--line);
  background: #020504;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.footer-grid > div {
  max-width: 520px;
}

.footer-brand {
  margin-bottom: 12px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
  justify-content: flex-end;
}

.site-footer nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.06);
}

.site-footer nav a:hover {
  color: var(--text);
}

@media (max-width: 1024px) {
  .hero {
    min-height: auto;
  }

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

  .hero-grid {
    gap: 48px;
  }

  .hero-device {
    max-width: 680px;
    margin: 0 auto;
  }

  .floating-card {
    display: none;
  }

  .sound-desk {
    grid-template-columns: 1fr;
  }

  .sound-sidebar {
    display: none;
  }

  .lyrics-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 16px 28px 42px;
  }

  .album-card {
    max-width: 520px;
    margin: 0 auto;
  }

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

  .feature-grid article,
  .version-card,
  .article-card {
    min-height: auto;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .section-pad {
    padding: 72px 0;
  }

  .nav-shell {
    min-height: 68px;
  }

  .top-nav {
    display: none;
  }

  .nav-cta {
    padding: 0 14px;
  }

  .hero {
    padding-top: 36px;
  }

  .hero h1 {
    font-size: clamp(38px, 13vw, 58px);
  }

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

  .download-secondary,
  .player-bar {
    grid-template-columns: 1fr;
  }

  .player-bar {
    justify-items: center;
  }

  .time,
  .mode {
    justify-self: center;
  }

  .sound-topbar {
    justify-content: center;
    padding: 20px 18px;
  }

  .vip-chip {
    display: none;
  }

  .lyrics-grid {
    padding-inline: 18px;
  }

  .lyrics-list {
    font-size: 26px;
    gap: 12px;
  }

  .floating-card {
    display: none;
  }

  .article-hero,
  .article-content {
    padding: 26px;
    border-radius: 24px;
  }

  .footer-grid {
    display: grid;
  }

  .site-footer nav {
    justify-content: flex-start;
  }
}

@media (max-width: 430px) {
  .brand {
    min-height: 40px;
  }

  .brand-logo {
    width: 138px;
  }

  .nav-cta {
    font-size: 14px;
  }

  .hero-lead,
  .section-head p:not(.eyebrow) {
    font-size: 16px;
  }

  .download-primary {
    justify-content: flex-start;
  }

  .device-frame,
  .sound-desk {
    border-radius: 24px;
  }

  .album-meta {
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}