:root {
  --bg: #141518;
  --bg-soft: #1c1d21;
  --surface: #292a2f;
  --raised: #313238;
  --border: #414249;
  --mint: #58e6a7;
  --mint-ink: #071b13;
  --sky: #70c9af;
  --text: #f2f0ea;
  --muted: #a9a6a2;
  --dim: #77767a;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
}

a { color: inherit; }

.wrap {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
}

.site-header .wrap,
.site-footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.brand img {
  width: 30px;
  height: 30px;
  border-radius: 8px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

.nav a { text-decoration: none; }
.nav a:hover { color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.btn-mint {
  background: var(--mint);
  color: var(--mint-ink);
}

.btn-mint:hover { filter: brightness(1.06); }

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover { background: var(--raised); }

.btn-small {
  min-height: 36px;
  padding: 0 14px;
  font-size: 13px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 72px;
  align-items: center;
  padding: 88px 0 72px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--sky);
  font-size: 13px;
  letter-spacing: 0.12em;
}

h1 {
  margin: 0;
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.06em;
}

.lead {
  margin: 22px 0 0;
  max-width: 28em;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.meta {
  margin: 14px 0 0;
  color: var(--dim);
  font-size: 13px;
}

.phone {
  width: min(320px, 100%);
  margin: 0 auto;
  padding: 12px;
  border-radius: 36px;
  background: #0c0d10;
  border: 1px solid #2c2d33;
  box-shadow: var(--shadow);
}

.phone-screen {
  overflow: hidden;
  border-radius: 26px;
  background: #232329;
}

.phone-bar {
  display: flex;
  justify-content: space-between;
  padding: 12px 16px 4px;
  color: var(--dim);
  font-size: 11px;
}

.app-title {
  padding: 8px 18px 4px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.search {
  margin: 10px 14px 14px;
  padding: 10px 12px;
  border-radius: 999px;
  background: #191a1e;
  color: var(--dim);
  font-size: 12px;
}

.track {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 10px;
  align-items: center;
  margin: 0 12px 8px;
  padding: 8px;
  border-radius: 14px;
}

.track.active {
  background: #2a3532;
}

.cover {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.t1 { background: linear-gradient(135deg, #58e6a7, #1d6b55); }
.t2 { background: linear-gradient(135deg, #6ea8ff, #243868); }
.t3 { background: linear-gradient(135deg, #d4a574, #5a3d28); }
.t4 { background: linear-gradient(135deg, #70c9af, #23463f); }

.track b,
.now-playing b,
.mini-player b,
.np b {
  display: block;
  font-size: 13px;
  font-weight: 600;
}

.track span,
.now-playing span,
.mini-player span,
.np span {
  display: block;
  color: var(--muted);
  font-size: 11px;
}

.mini-player {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
  padding: 12px 14px 16px;
  background: #1c1d21;
}

.mini-player > div { min-width: 0; }

.mini-cover {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: cover;
}

.progress {
  height: 3px;
  margin-top: 8px;
  border-radius: 99px;
  background: #33343a;
}

.progress i {
  display: block;
  width: 62%;
  height: 100%;
  border-radius: inherit;
  background: var(--mint);
}

.trust {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 8px 0 80px;
}

.trust article {
  padding: 22px 22px 20px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--bg-soft);
}

.trust h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

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

.section {
  padding: 28px 0 88px;
}

.section h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.045em;
}

.section .copy {
  margin: 0;
  max-width: 36em;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.split.reverse { grid-template-columns: 1.1fr 0.9fr; }
.split.reverse .copy-col { order: 2; }

.desktop {
  padding: 14px;
  border-radius: 24px;
  background: #101114;
  border: 1px solid #2c2d33;
  box-shadow: var(--shadow);
}

.desktop-screen {
  display: grid;
  grid-template-columns: 1fr 200px;
  min-height: 320px;
  border-radius: 16px;
  background: #232329;
}

.list-pane { padding: 18px 16px; }

.np {
  padding: 18px 16px;
  background: #1c1d21;
  border-left: 1px solid #2c2d33;
}

.np-art {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 18px;
  object-fit: cover;
  margin: 18px 0 16px;
}

.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 72px;
}

.panel {
  min-height: 280px;
  padding: 24px;
  border-radius: 22px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
}

.panel h3 {
  margin: 0 0 8px;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.panel p {
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.7;
}

.lyrics {
  display: grid;
  gap: 10px;
  color: var(--dim);
  font-size: 15px;
}

.lyrics .on {
  color: var(--mint);
  font-weight: 600;
}

.create {
  margin-top: 18px;
  padding: 28px;
  border-radius: 22px;
  background:
    radial-gradient(circle at 90% 10%, color-mix(in srgb, var(--mint) 16%, transparent), transparent 28%),
    var(--bg-soft);
  border: 1px solid var(--border);
}

.create-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

.prompt {
  padding: 16px 16px 14px;
  border-radius: 16px;
  background: #191a1e;
  color: var(--muted);
  line-height: 1.6;
}

.prompt strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
}

.chip {
  display: inline-flex;
  margin-top: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--mint) 16%, transparent);
  color: var(--mint);
  font-size: 12px;
}

.download-band {
  padding: 88px 0;
  text-align: center;
}

.download-band h2 {
  margin: 0 0 12px;
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: -0.05em;
}

.download-band p {
  margin: 0 auto 28px;
  max-width: 26em;
  color: var(--muted);
  line-height: 1.7;
}

.site-footer {
  border-top: 1px solid #2a2b31;
  color: var(--dim);
  font-size: 13px;
}

.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--text); }

.legal {
  width: min(720px, calc(100% - 48px));
  margin: 0 auto;
  padding: 24px 0 80px;
}

.legal h1 {
  font-size: 40px;
  margin: 28px 0 18px;
}

.legal p {
  color: var(--muted);
  line-height: 1.75;
  font-size: 16px;
}

@media (max-width: 860px) {
  .hero,
  .split,
  .split.reverse,
  .pair,
  .create-grid,
  .trust,
  .desktop-screen {
    grid-template-columns: 1fr;
  }

  .hero { padding-top: 48px; gap: 40px; }
  .split.reverse .copy-col { order: 0; }
  .nav .hide-sm { display: none; }
  .np { border-left: 0; border-top: 1px solid #2c2d33; }
}