:root {
  --bg: #fcfbfa;
  --ink: #1a1714;
  --muted: #78716a;
  --line: rgba(28, 22, 16, 0.08);
  --line-strong: rgba(28, 22, 16, 0.14);
  --surface: #ffffff;
  --brand: #f55e55;
  --brand-deep: #dd463c;
  --brand-soft: #fff1ef;
  --max: 1120px;
  --shadow-sm: 0 1px 2px rgba(28, 22, 16, 0.05), 0 10px 26px -20px rgba(28, 22, 16, 0.35);
  --font:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    radial-gradient(880px 460px at 50% -160px, rgba(245, 94, 85, 0.14), transparent 72%),
    radial-gradient(680px 380px at 88% -40px, rgba(249, 187, 184, 0.18), transparent 70%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

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

svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

::selection {
  background: rgba(245, 94, 85, 0.22);
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

/* 导航 */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  background: rgba(252, 251, 250, 0.72);
  border-bottom: 1px solid transparent;
  transition:
    border-color 0.3s ease,
    background 0.3s ease;
}

.nav.is-scrolled {
  background: rgba(252, 251, 250, 0.9);
  border-bottom-color: var(--line);
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  height: 64px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.brand img {
  border-radius: 7px;
}

.nav-links {
  display: flex;
  gap: 26px;
  flex: 1;
  font-size: 13.5px;
  color: #635c56;
}

.nav-links a {
  transition: color 0.2s ease;
}

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

.nav-gh {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  color: #2a2521;
  transition:
    background 0.2s ease,
    box-shadow 0.2s ease;
}

.nav-gh svg {
  width: 18px;
  height: 18px;
}

.nav-gh:hover {
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

/* 首屏 */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 60px 24px 80px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  max-width: 700px;
  margin: 0 auto 54px;
  text-align: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 30px;
  padding: 0 13px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  color: #6b6459;
  letter-spacing: 0.01em;
}

.pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #38a169;
  box-shadow: 0 0 0 3px rgba(56, 161, 105, 0.16);
}

.hero h1 {
  font-size: clamp(44px, 7.4vw, 78px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.045em;
  background: linear-gradient(180deg, #211c18 30%, #4a3f37 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lede {
  max-width: 540px;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.8;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition:
    transform 0.2s ease,
    box-shadow 0.25s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.btn svg {
  width: 17px;
  height: 17px;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(180deg, #f96b62, #ef4f45);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.35) inset,
    0 14px 26px -16px rgba(239, 79, 69, 0.95);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.35) inset,
    0 18px 32px -16px rgba(239, 79, 69, 0.95);
}

.btn-ghost {
  color: #2a2521;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line-strong);
}

.btn-ghost:hover {
  background: #fff;
  border-color: rgba(28, 22, 16, 0.22);
}

/* 客户端预览 */
.showcase {
  position: relative;
  max-width: 1040px;
  margin: 0 auto;
}

.frame {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow:
    0 1px 2px rgba(28, 22, 16, 0.04),
    0 50px 90px -50px rgba(48, 26, 18, 0.45),
    0 0 0 6px rgba(255, 255, 255, 0.5);
}

.frame-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 38px;
  padding: 0 14px;
  background: rgba(252, 251, 250, 0.9);
  border-bottom: 1px solid var(--line);
}

.dots {
  display: flex;
  gap: 6px;
}

.dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e8e3de;
}

.dots i:nth-child(1) {
  background: #f2766c;
}
.dots i:nth-child(2) {
  background: #f3c169;
}
.dots i:nth-child(3) {
  background: #7fcb8b;
}

.frame-title {
  flex: 1;
  text-align: center;
  font-size: 11.5px;
  color: #a8a09a;
  letter-spacing: 0.02em;
}

.frame-bar-end {
  width: 40px;
}

.frame-body {
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr);
  grid-template-rows: 100%;
  height: 508px;
}

/* 侧栏 */
.side {
  display: flex;
  flex-direction: column;
  padding: 14px 10px;
  background: #f9f7f5;
  border-right: 1px solid var(--line);
  font-size: 12.5px;
}

.side-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 2px 9px 14px;
  font-size: 13px;
  font-weight: 650;
  color: #2a2724;
}

.side-brand img {
  border-radius: 6px;
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.side-nav a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 9px;
  border-radius: 8px;
  color: #635c56;
}

.side-nav svg {
  width: 15px;
  height: 15px;
}

.side-nav a.is-active {
  background: rgba(245, 94, 85, 0.13);
  color: var(--brand-deep);
  font-weight: 600;
}

.side-label {
  padding: 14px 9px 6px;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: #aaa29b;
}

.side-pls {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.side-pl {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 9px;
  border-radius: 8px;
  color: #635c56;
}

.side-pl img {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  object-fit: cover;
}

/* 主区域 */
.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: #fff;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
}

.toolbar-nav {
  display: flex;
  gap: 6px;
}

.toolbar-nav i {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #f4f1ee;
}

.searchbar {
  display: flex;
  align-items: center;
  gap: 7px;
  flex: 1;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: #f6f3f1;
  font-size: 11.5px;
  color: #a8a09a;
}

.searchbar svg {
  width: 13px;
  height: 13px;
}

.avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}

.content {
  flex: 1;
  min-height: 0;
  padding: 16px 18px 8px;
  overflow: hidden;
}

.album-head {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 14px;
}

.album-cover {
  width: 104px;
  height: 104px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 14px 26px -16px rgba(30, 20, 15, 0.65);
}

.album-meta {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-bottom: 2px;
}

.tag {
  align-self: flex-start;
  padding: 2px 7px;
  border-radius: 5px;
  border: 1px solid rgba(245, 94, 85, 0.25);
  background: var(--brand-soft);
  color: var(--brand-deep);
  font-size: 10px;
}

.album-meta h3 {
  font-size: 20px;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #221e1a;
}

.album-meta p {
  font-size: 11.5px;
  line-height: 1.4;
  color: #a8a09a;
}

.album-actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

.mini-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font-size: 11.5px;
  color: #4a443f;
}

.mini-btn svg {
  width: 12px;
  height: 12px;
}

.mini-btn-primary {
  border-color: transparent;
  background: var(--brand);
  color: #fff;
  box-shadow: 0 8px 16px -10px rgba(245, 94, 85, 0.95);
}

.tracks {
  list-style: none;
}

.tracks li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) 1fr 46px;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 8px;
  font-size: 12px;
  color: #4f4943;
}

.tracks li.is-playing {
  background: #fdf3f1;
}

.col-idx {
  font-size: 11px;
  color: #b3aca5;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.eq {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 2px;
  height: 12px;
}

.eq i {
  width: 2.5px;
  border-radius: 2px;
  background: var(--brand);
  animation: eq 0.9s ease-in-out infinite;
}

.eq i:nth-child(1) {
  height: 6px;
  animation-delay: -0.2s;
}

.eq i:nth-child(2) {
  height: 12px;
  animation-delay: -0.5s;
}

.eq i:nth-child(3) {
  height: 8px;
  animation-delay: -0.8s;
}

@keyframes eq {
  0%,
  100% {
    transform: scaleY(0.35);
  }
  50% {
    transform: scaleY(1);
  }
}

.col-title {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.col-title img {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  object-fit: cover;
  flex: none;
}

.tt {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.tt b {
  font-size: 12px;
  line-height: 1.45;
  font-weight: 600;
  color: #2b2724;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tt small {
  font-size: 10.5px;
  line-height: 1.4;
  color: #a8a09a;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.is-playing .tt b {
  color: var(--brand-deep);
}

.col-album {
  font-size: 11px;
  color: #a8a09a;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.col-time {
  font-size: 11px;
  color: #b3aca5;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.player {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  height: 76px;
  padding: 0 16px;
  background: #fff;
  border-top: 1px solid var(--line);
}

.player-song {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.player-song img {
  width: 40px;
  height: 40px;
  border-radius: 7px;
  object-fit: cover;
}

.player-meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.player-meta b {
  font-size: 12px;
  font-weight: 600;
  color: #2b2724;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-meta small {
  font-size: 10.5px;
  color: #a8a09a;
}

.player-like {
  width: 15px;
  height: 15px;
  color: #b3aca5;
  flex: none;
}

.player-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 220px;
}

.player-btns {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #6b6560;
}

.player-btns svg {
  width: 15px;
  height: 15px;
}

.player-play {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  box-shadow: 0 8px 16px -9px rgba(245, 94, 85, 0.95);
}

.player-play svg {
  width: 13px;
  height: 13px;
}

.player-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.player-progress .time {
  font-size: 9.5px;
  color: #b3aca5;
  font-variant-numeric: tabular-nums;
}

.bar {
  position: relative;
  flex: 1;
  height: 3px;
  border-radius: 99px;
  background: #efeae6;
}

.bar i {
  position: absolute;
  inset: 0 auto 0 0;
  width: 33%;
  border-radius: 99px;
  background: var(--brand);
}

.bar i::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
  transform: translateY(-50%);
  box-shadow: 0 0 0 3px rgba(245, 94, 85, 0.16);
}

.player-tools {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
  color: #b3aca5;
}

.player-tools svg {
  width: 15px;
  height: 15px;
}

.vol {
  position: relative;
  width: 52px;
  height: 3px;
  border-radius: 99px;
  background: #efeae6;
}

.vol i {
  position: absolute;
  inset: 0 auto 0 0;
  width: 60%;
  border-radius: 99px;
  background: #c9c2bb;
}

/* 悬浮歌词 */
.lyric-card {
  position: absolute;
  right: -30px;
  bottom: 92px;
  width: 286px;
  padding: 15px 18px 16px;
  border-radius: 15px;
  background: rgba(24, 20, 18, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: rgba(255, 255, 255, 0.42);
  box-shadow: 0 30px 60px -28px rgba(24, 12, 8, 0.8);
}

.lyric-head {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.5);
}

.lyric-head svg {
  width: 13px;
  height: 13px;
}

.lyric-card p {
  font-size: 13px;
  line-height: 2;
  transition: color 0.4s ease;
}

.lyric-card p.current {
  font-size: 15.5px;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 0 22px rgba(245, 94, 85, 0.45);
}

/* 区块 */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 76px 24px;
}

.section-head {
  max-width: 620px;
  margin-bottom: 38px;
}

.eyebrow {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--brand-deep);
}

.section-head h2 {
  margin: 12px 0 10px;
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 700;
  letter-spacing: -0.035em;
}

.section-head p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* 功能卡片 */
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  transition:
    transform 0.3s cubic-bezier(0.2, 0.7, 0.3, 1),
    box-shadow 0.3s ease,
    border-color 0.3s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(245, 94, 85, 0.28);
  box-shadow: 0 22px 44px -32px rgba(48, 26, 18, 0.55);
}

.ico {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 14px;
  border-radius: 11px;
  background: var(--brand-soft);
  color: var(--brand-deep);
}

.ico svg {
  width: 19px;
  height: 19px;
}

.card h3 {
  margin-bottom: 6px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.card p {
  font-size: 13.2px;
  line-height: 1.72;
  color: var(--muted);
}

/* 下载 */
.os-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.os-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  transition:
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.os-card:hover {
  border-color: rgba(245, 94, 85, 0.28);
  box-shadow: 0 22px 44px -32px rgba(48, 26, 18, 0.55);
}

.os-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.os-top h3 {
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.os-badge {
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 10.5px;
  color: #8c857e;
  white-space: nowrap;
}

.os-formats {
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 14px;
}

.btn-line {
  height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  font-size: 13px;
  color: #2a2521;
  justify-content: space-between;
  margin-top: auto;
  background: #fff;
}

.btn-line svg {
  width: 15px;
  height: 15px;
  color: #9a938c;
}

.btn-line:hover {
  border-color: rgba(245, 94, 85, 0.4);
  background: var(--brand-soft);
  color: var(--brand-deep);
}

.btn-line:hover svg {
  color: var(--brand-deep);
}

.dev-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.dev-label {
  font-size: 12.5px;
  color: #9a938c;
}

.link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 550;
  color: #2a2521;
  transition: color 0.2s ease;
}

.link svg {
  width: 14px;
  height: 14px;
  color: #9a938c;
  transition: transform 0.2s ease;
}

.link:hover {
  color: var(--brand-deep);
}

.link:hover svg {
  color: var(--brand-deep);
  transform: translate(1px, -1px);
}

/* 部署 */
.deploy-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 14px;
  align-items: start;
}

.code-card {
  padding: 16px 18px 18px;
  border-radius: 16px;
  background: #17151a;
  box-shadow: 0 30px 60px -40px rgba(24, 14, 10, 0.9);
}

.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.code-name {
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: #b3aca6;
  text-transform: uppercase;
}

.copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 9px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.06);
  color: #cfc8c1;
  font-family: inherit;
  font-size: 11.5px;
  cursor: pointer;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease;
}

.copy svg {
  width: 12px;
  height: 12px;
}

.copy:hover {
  background: rgba(255, 255, 255, 0.13);
}

.copy.is-done {
  color: #8fe0b0;
  border-color: rgba(143, 224, 176, 0.4);
}

pre {
  overflow-x: auto;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 12.6px;
  line-height: 1.9;
  color: #f2efeb;
}

.code-note {
  margin-top: 10px;
  font-size: 12px;
  color: #8d8680;
}

/* 页脚 */
.footer {
  margin-top: 40px;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 30px 24px 46px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  font-weight: 650;
}

.footer-brand img {
  border-radius: 6px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-left: auto;
  font-size: 13px;
  color: var(--muted);
}

.footer-links a {
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--brand-deep);
}

.copyright {
  width: 100%;
  font-size: 12.5px;
  color: #a8a09a;
}

/* 入场动画 */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.7s cubic-bezier(0.2, 0.7, 0.3, 1),
    transform 0.7s cubic-bezier(0.2, 0.7, 0.3, 1);
}

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

/* 响应式 */
@media (max-width: 1100px) {
  .lyric-card {
    display: none;
  }
}

@media (max-width: 960px) {
  .grid,
  .os-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .frame-body {
    grid-template-columns: 180px minmax(0, 1fr);
    height: 470px;
  }

  .tracks li:nth-child(n + 5) {
    display: none;
  }

  .album-cover {
    width: 88px;
    height: 88px;
  }

  .album-meta h3 {
    font-size: 18px;
  }
}

@media (max-width: 780px) {
  .nav-inner {
    gap: 18px;
  }

  .hero {
    padding: 44px 20px 60px;
  }

  .section {
    padding: 56px 20px;
  }

  .frame-body {
    grid-template-columns: minmax(0, 1fr);
    height: 456px;
  }

  .side {
    display: none;
  }

  .tracks li {
    grid-template-columns: 24px minmax(0, 1fr) 44px;
  }

  .col-album {
    display: none;
  }

  .player {
    grid-template-columns: 1fr auto;
    gap: 12px;
    height: 72px;
  }

  .player-tools {
    display: none;
  }

  .player-center {
    min-width: 160px;
  }
}

@media (max-width: 620px) {
  .nav-links {
    gap: 18px;
    font-size: 13px;
  }

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

  .hero-copy {
    margin-bottom: 40px;
  }

  .btn {
    height: 44px;
    padding: 0 18px;
    font-size: 14px;
  }

  .album-actions,
  .album-meta p {
    display: none;
  }

  .tracks li:nth-child(n + 4) {
    display: none;
  }

  .frame-body {
    height: 388px;
  }

  .footer-links {
    margin-left: 0;
    gap: 16px;
  }
}

@media (max-width: 430px) {
  .nav-inner {
    gap: 14px;
    padding: 0 18px;
  }

  .nav-links {
    gap: 14px;
    font-size: 12.5px;
  }

  .brand {
    font-size: 14.5px;
  }

  .hero,
  .section {
    padding-left: 18px;
    padding-right: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .eq i {
    animation: none;
  }
}