/* ==========================================================================
   酷狗音乐官网 — 深色编辑风 UI 重构
   排版：移动优先，断点 576 / 768 / 992 / 1200
   ========================================================================== */

:root {
  --brand: #8B5CF6;
  --brand-deep: #6D28D9;
  --brand-2: #22D3EE;
  --accent: #F5B841;

  --bg: #07070A;
  --bg-2: #0B0B10;
  --bg-3: #0E0E14;
  --panel: #111118;
  --panel-2: #16161F;
  --line: #24242E;
  --line-soft: #1B1B23;
  --txt: #F2F2F5;
  --txt-2: #C7C7D2;
  --txt-dim: #9A9AAC;
  --txt-faint: #6E6E80;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Roboto, Helvetica,
    Arial, sans-serif;

  --r-xs: 8px;
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 28px;
  --r-pill: 999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, .4);
  --shadow-md: 0 18px 40px -18px rgba(0, 0, 0, .9);
  --shadow-lg: 0 40px 90px -30px rgba(0, 0, 0, .95);

  --head-h: 64px;
  --sec-pad: clamp(56px, 7vw, 96px);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(1100px 600px at 82% -8%, rgba(139, 92, 246, .10), transparent 62%),
    radial-gradient(900px 520px at 4% 6%, rgba(34, 211, 238, .055), transparent 58%),
    var(--bg);
  color: var(--txt);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, dt, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

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

::selection { background: rgba(139, 92, 246, .45); color: #fff; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

.skip {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 400;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--brand-deep);
  border-radius: var(--r-sm);
  transition: top .2s var(--ease);
}
.skip:focus { top: 12px; }

/* ------------------------------- 按钮 ---------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: .01em;
  border-radius: var(--r-pill);
  white-space: nowrap;
  transition: transform .22s var(--ease), background-color .22s var(--ease),
    border-color .22s var(--ease), box-shadow .22s var(--ease), color .22s var(--ease);
}
.btn-sm { min-height: 38px; padding: 0 18px; font-size: 13px; }

.btn-primary {
  color: #fff;
  background: linear-gradient(180deg, #A18BFF 0%, #7C3AED 100%);
  box-shadow: 0 10px 26px -10px rgba(124, 58, 237, .9),
    inset 0 1px 0 rgba(255, 255, 255, .22);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px -12px rgba(139, 92, 246, .95),
    inset 0 1px 0 rgba(255, 255, 255, .28);
}
.btn-primary:active { transform: translateY(0); }

.btn-line {
  color: var(--txt);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .025);
}
.btn-line:hover {
  border-color: #3A3A4A;
  background: rgba(255, 255, 255, .06);
  transform: translateY(-2px);
}

.btn-solid { color: #2E1065; background: #fff; }
.btn-solid:hover { background: #EDE9FE; transform: translateY(-2px); }

.btn-ghost-light {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .45);
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .7);
  transform: translateY(-2px);
}

/* ------------------------------- 页头 ---------------------------------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--bg);
  border-bottom: 1px solid var(--line-soft);
  transition: background-color .25s var(--ease), border-color .25s var(--ease),
    box-shadow .25s var(--ease);
}
.site-head.scrolled {
  background: rgba(7, 7, 10, .94);
  border-bottom-color: var(--line);
  box-shadow: 0 14px 34px -18px rgba(0, 0, 0, .9);
}

.head-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: var(--head-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--txt);
  flex: 0 0 auto;
}
.brand img {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  box-shadow: 0 4px 14px -4px rgba(139, 92, 246, .6);
}

.menu-btn {
  width: 42px;
  height: 42px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, .03);
}
.menu-btn span {
  width: 18px;
  height: 1.8px;
  background: var(--txt);
  border-radius: 2px;
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

.nav-drawer {
  position: fixed;
  left: 0;
  right: 0;
  top: var(--head-h);
  max-height: calc(100vh - var(--head-h));
  max-height: calc(100dvh - var(--head-h));
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 24px;
  padding: 24px 20px 40px;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity .22s var(--ease), transform .22s var(--ease),
    visibility .22s var(--ease);
}
.nav-drawer.open {
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
}

.nav-links { display: flex; flex-direction: column; }
.nav-links a {
  display: block;
  padding: 15px 2px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--txt-2);
  border-bottom: 1px solid var(--line-soft);
  transition: color .2s var(--ease);
}
.nav-links a:hover,
.nav-links a.active { color: #fff; }

.nav-cta { display: flex; align-items: center; gap: 18px; }
.nav-login { font-size: 14px; color: var(--txt-dim); }
.nav-login:hover { color: var(--txt); }

body.menu-open { overflow: hidden; }

/* ------------------------------- Hero ---------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 32px 0 0;
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(760px 420px at 88% -12%, rgba(139, 92, 246, .24), transparent 62%),
    radial-gradient(620px 380px at 2% 12%, rgba(34, 211, 238, .10), transparent 60%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 50% 12%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 12%, #000 0%, transparent 72%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .4;
  pointer-events: none;
}
.ga { left: -160px; top: 100px; background: rgba(139, 92, 246, .55); }
.gb { right: -140px; bottom: -80px; background: rgba(34, 211, 238, .28); }

.hero-grid {
  position: relative;
  display: grid;
  gap: 44px;
  padding: 16px 0 52px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 14px 7px 11px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .04em;
  color: #CDBFFF;
  background: rgba(139, 92, 246, .10);
  border: 1px solid rgba(139, 92, 246, .30);
  border-radius: var(--r-pill);
}
.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-2);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, .6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 211, 238, .55); }
  70% { box-shadow: 0 0 0 9px rgba(34, 211, 238, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0); }
}

.hero h1 {
  margin-top: 20px;
  font-size: clamp(38px, 9.6vw, 52px);
  line-height: 1.08;
  letter-spacing: -.035em;
  font-weight: 800;
  color: #fff;
  text-wrap: balance;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(96deg, #B9A2FF 0%, #5EE7F5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  margin-top: 18px;
  max-width: 540px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--txt-dim);
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.hero-facts > div { min-width: 0; }
.hero-facts dt {
  order: 2;
  font-size: 12px;
  color: var(--txt-faint);
  letter-spacing: .02em;
}
.hero-facts dd {
  font-size: clamp(16px, 4.4vw, 19px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: #fff;
  white-space: nowrap;
}

/* 正在播放卡片 */
.hero-stage {
  position: relative;
  isolation: isolate;
}
.hero-stage::before {
  content: "";
  position: absolute;
  inset: 6% -8% -12% -8%;
  z-index: -1;
  background: radial-gradient(closest-side, rgba(139, 92, 246, .38), transparent 72%);
  filter: blur(46px);
  pointer-events: none;
}

.now-card {
  position: relative;
  padding: 20px;
  background: linear-gradient(168deg, #17171F 0%, #0B0B10 88%);
  border: 1px solid #2C2C39;
  border-radius: 26px;
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, .05);
  overflow: hidden;
}
.now-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, .8), transparent);
}
.now-card::after {
  content: "";
  position: absolute;
  inset: -40% 30% 60% -20%;
  background: radial-gradient(circle, rgba(139, 92, 246, .26), transparent 62%);
  pointer-events: none;
}

.now-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--txt-faint);
}
.now-tag { color: #CDBFFF; }
.now-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-2);
  box-shadow: 0 0 12px rgba(34, 211, 238, .85);
}

.disc-wrap {
  display: grid;
  place-items: center;
  padding: 26px 0 20px;
}
.disc {
  display: block;
  width: 142px;
  height: 142px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, #0A0A0E 0 25%, transparent 26%),
    repeating-radial-gradient(circle at 50% 50%, #1D1D27 0 2px, #121219 2px 5px),
    conic-gradient(from 0deg, #7C3AED, #22D3EE, #F5B841, #7C3AED);
  box-shadow: 0 22px 44px -16px rgba(0, 0, 0, .9),
    inset 0 0 0 1px rgba(255, 255, 255, .07);
  animation: spin 10s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.now-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: #fff;
  text-align: center;
}
.now-meta {
  margin-top: 4px;
  font-size: 12px;
  color: var(--txt-faint);
  text-align: center;
}

.eq {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
  height: 36px;
  margin: 18px 0 14px;
}
.eq i {
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, #22D3EE, #8B5CF6);
  opacity: .85;
  animation: eq 1.4s ease-in-out infinite;
}
.eq i:nth-child(3n) { animation-duration: 1.1s; }
.eq i:nth-child(4n) { animation-duration: 1.7s; }
.eq i:nth-child(1) { height: 30%; }
.eq i:nth-child(2) { height: 62%; }
.eq i:nth-child(3) { height: 44%; }
.eq i:nth-child(4) { height: 80%; }
.eq i:nth-child(5) { height: 52%; }
.eq i:nth-child(6) { height: 68%; }
.eq i:nth-child(7) { height: 36%; }
.eq i:nth-child(8) { height: 90%; }
.eq i:nth-child(9) { height: 48%; }
.eq i:nth-child(10) { height: 72%; }
.eq i:nth-child(11) { height: 40%; }
.eq i:nth-child(12) { height: 84%; }
.eq i:nth-child(13) { height: 56%; }
.eq i:nth-child(14) { height: 66%; }
.eq i:nth-child(15) { height: 34%; }
.eq i:nth-child(16) { height: 76%; }
.eq i:nth-child(17) { height: 46%; }
.eq i:nth-child(18) { height: 58%; }
@keyframes eq {
  0%, 100% { transform: scaleY(.6); }
  50% { transform: scaleY(1); }
}

.now-bar {
  height: 4px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .1);
  overflow: hidden;
}
.now-bar span {
  display: block;
  width: 32%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
}
.now-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 11px;
  color: var(--txt-faint);
  font-variant-numeric: tabular-nums;
}
.now-ctrl { letter-spacing: .3em; color: #CDBFFF; }

.float-note {
  display: none;
  position: absolute;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-size: 12px;
  color: var(--txt-2);
  background: rgba(17, 17, 24, .94);
  border: 1px solid #333342;
  border-radius: var(--r-pill);
  box-shadow: 0 14px 30px -12px rgba(0, 0, 0, .9);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.float-note b {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  font-size: 10px;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  border-radius: 50%;
}
.note-ai { left: -12px; bottom: -16px; }
.note-hq { right: 0; top: -16px; }

/* Ticker */
.ticker {
  position: relative;
  padding: 13px 0;
  border-top: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, .012);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.ticker-track {
  display: flex;
  width: max-content;
  gap: 30px;
  animation: slide 32s linear infinite;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-track span {
  display: inline-flex;
  align-items: center;
  gap: 30px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--txt-faint);
  white-space: nowrap;
}
.ticker-track span::after {
  content: "◆";
  font-size: 6px;
  color: var(--brand);
}
@keyframes slide {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ------------------------------- 数据条 -------------------------------- */
.metrics {
  background: var(--bg-2);
  border-bottom: 1px solid var(--line-soft);
}
.metrics-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 28px;
}
.metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.metric strong {
  font-size: clamp(21px, 2.6vw, 26px);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.2;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.metric small { font-size: 13px; color: var(--brand-2); font-weight: 600; }
.metric span { font-size: 12px; color: var(--txt-faint); letter-spacing: .02em; }

/* ------------------------------- 通用区块 ------------------------------- */
.section {
  padding: var(--sec-pad) 0;
  counter-increment: sec;
  scroll-margin-top: calc(var(--head-h) + 12px);
}
body { counter-reset: sec; }

.section-dark {
  background: var(--bg-2);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.section-head {
  display: grid;
  gap: 12px;
  max-width: 760px;
  margin-bottom: clamp(30px, 4vw, 52px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--brand-2);
}
.eyebrow::before {
  content: "";
  width: 20px;
  height: 1px;
  background: currentColor;
  opacity: .65;
}
.section-head .eyebrow::before {
  counter-increment: sec;
  content: "0" counter(sec);
  width: auto;
  height: auto;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--txt-faint);
  background: none;
  opacity: 1;
  font-variant-numeric: tabular-nums;
}

.section-head h2,
.ai-copy h2 {
  margin-top: 4px;
  font-size: clamp(26px, 4.4vw, 38px);
  line-height: 1.22;
  letter-spacing: -.03em;
  font-weight: 800;
  color: #fff;
  text-wrap: balance;
}
.section-head .lead,
.ai-copy .lead {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--txt-dim);
}

.reveal.in { animation: rise .6s cubic-bezier(.2, .7, .3, 1) both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

/* ------------------------------- Bento --------------------------------- */
.bento {
  display: grid;
  gap: 16px;
}

.tile {
  position: relative;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, 0) 55%),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: border-color .22s var(--ease), transform .22s var(--ease),
    box-shadow .22s var(--ease);
}
.tile:hover {
  border-color: #3A3A4A;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.tile h3 {
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.35;
  letter-spacing: -.02em;
  color: #fff;
}
.tile p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--txt-dim);
}
.tile-ico {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 16px;
  font-size: 17px;
  color: var(--brand-2);
  background: rgba(34, 211, 238, .07);
  border: 1px solid rgba(34, 211, 238, .22);
  border-radius: 12px;
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tags li {
  padding: 4px 11px;
  font-size: 11px;
  letter-spacing: .03em;
  color: #CDBFFF;
  background: rgba(139, 92, 246, .12);
  border: 1px solid rgba(139, 92, 246, .26);
  border-radius: var(--r-pill);
}
.mock { margin-top: 20px; }
.mock svg {
  width: 100%;
  height: auto;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-soft);
}
.mock-sq { max-width: 280px; }

/* ------------------------------- 场景 ---------------------------------- */
.scene-deck {
  display: grid;
  gap: 14px;
}

.scene-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 176px;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color .22s var(--ease), background-color .22s var(--ease),
    transform .22s var(--ease);
}
.scene-tile::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--brand), var(--brand-2));
  opacity: 0;
  transition: opacity .22s var(--ease);
}
.scene-tile:hover {
  border-color: #3A3A4A;
  background: var(--panel-2);
  transform: translateY(-3px);
}
.scene-tile:hover::before { opacity: 1; }

.scene-no {
  position: absolute;
  top: 12px;
  right: 18px;
  font-size: 40px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.05em;
  color: rgba(255, 255, 255, .055);
  font-variant-numeric: tabular-nums;
}
.scene-tile h3 {
  font-size: 18px;
  letter-spacing: -.01em;
  color: #fff;
}
.scene-tile p {
  margin: 8px 0 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--txt-dim);
}
.scene-go {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-2);
}
.scene-go::after { content: "↗"; font-size: 12px; }
.scene-go:hover { color: #fff; }

/* ------------------------------- 歌单表 -------------------------------- */
.song-table {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--panel);
}
.song-head,
.song-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 62px;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
}
.song-head {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--txt-faint);
  background: rgba(255, 255, 255, .025);
  border-bottom: 1px solid var(--line);
}
.song-head span:nth-child(3),
.song-head span:nth-child(5) { display: none; }
.song-row {
  border-bottom: 1px solid var(--line-soft);
  font-size: 14px;
  color: var(--txt);
  transition: background-color .18s var(--ease);
}
.song-row:last-child { border-bottom: 0; }
.song-row:hover { background: rgba(139, 92, 246, .07); }
.song-idx {
  font-size: 12px;
  color: var(--brand-2);
  font-variant-numeric: tabular-nums;
}
.song-name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.song-row > span:nth-child(3),
.song-row > span:nth-child(5) { display: none; }
.song-row > span:nth-child(4) {
  text-align: right;
  color: var(--txt-dim);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}
.song-style { color: var(--txt-dim); }

.lib-actions { margin-top: 24px; }

/* ------------------------------- AI ------------------------------------ */
.ai-grid {
  display: grid;
  gap: 40px;
  align-items: center;
}

.chat {
  position: relative;
  padding: 20px;
  background: linear-gradient(168deg, #16161F 0%, #0B0B10 90%);
  border: 1px solid #2C2C39;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.chat::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, .6), transparent);
}
.chat-top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}
.chat-bot {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  font-size: 11px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  border-radius: 50%;
}
.chat-top strong { display: block; font-size: 13px; color: #fff; }
.chat-top span { font-size: 11px; color: var(--txt-faint); }

.bubble {
  max-width: 92%;
  margin-top: 12px;
  padding: 11px 14px;
  font-size: 13px;
  line-height: 1.65;
  border-radius: 14px;
}
.bubble.them {
  color: var(--txt-2);
  background: rgba(255, 255, 255, .05);
  border-top-left-radius: 5px;
}
.bubble.me {
  margin-left: auto;
  color: #fff;
  background: linear-gradient(120deg, var(--brand), #7C3AED);
  border-top-right-radius: 5px;
}

.chat-songs { margin-top: 12px; }
.chat-songs li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  margin-bottom: 8px;
  font-size: 13px;
  background: rgba(255, 255, 255, .02);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xs);
}
.chat-songs li span {
  font-size: 11px;
  color: var(--brand-2);
  font-variant-numeric: tabular-nums;
}
.chat-songs em {
  margin-left: auto;
  font-style: normal;
  font-size: 11px;
  color: var(--txt-faint);
}
.chat-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chat-chips span {
  padding: 5px 12px;
  font-size: 12px;
  color: #CDBFFF;
  border: 1px solid rgba(139, 92, 246, .32);
  border-radius: var(--r-pill);
}

.checks { margin-top: 24px; }
.checks li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 11px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--txt-dim);
}
.checks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  font-size: 13px;
  color: var(--brand-2);
  font-weight: 700;
}
.ai-copy .btn { margin-top: 26px; }

/* ------------------------------- 下载 ---------------------------------- */
.dl-wrap { text-align: center; }
.dl-wrap .section-head {
  display: block;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}
.dl-wrap .section-head .eyebrow { justify-content: center; }
.dl-wrap .section-head .lead { max-width: 540px; margin-left: auto; margin-right: auto; }

.platform-pills {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  text-align: left;
}
.platform {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: border-color .22s var(--ease), transform .22s var(--ease),
    background-color .22s var(--ease);
}
.platform:hover {
  border-color: rgba(139, 92, 246, .55);
  background: var(--panel-2);
  transform: translateY(-3px);
}
.pf-badge {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .02em;
  color: #fff;
  background: linear-gradient(135deg, rgba(139, 92, 246, .4), rgba(34, 211, 238, .18));
  border: 1px solid rgba(139, 92, 246, .34);
  border-radius: 12px;
}
.platform b { font-size: 15px; color: #fff; letter-spacing: -.01em; }
.platform small { font-size: 11px; color: var(--txt-faint); }

.dl-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

/* ------------------------------- 背书 ---------------------------------- */
.proof-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 40px;
}
.figure {
  padding: 26px 20px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .028), transparent 60%),
    var(--panel);
}
.figure strong {
  display: block;
  font-size: clamp(26px, 3.6vw, 34px);
  font-weight: 800;
  letter-spacing: -.03em;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.figure small { font-size: 15px; color: var(--brand-2); font-weight: 600; }
.figure span { font-size: 12px; color: var(--txt-faint); }

.quotes { display: grid; gap: 12px; }
.quote {
  display: flex;
  flex-direction: column;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}
.stars { color: var(--accent); font-size: 12px; letter-spacing: 3px; }
.quote blockquote {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--txt-2);
}
.quote figcaption {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 18px;
  font-size: 12px;
  color: var(--txt-faint);
}
.quote figcaption b { display: block; font-size: 13px; color: #fff; }
.ava {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  font-size: 13px;
  color: #CDBFFF;
  background: rgba(139, 92, 246, .16);
  border: 1px solid rgba(139, 92, 246, .3);
  border-radius: 50%;
}

.partners { margin-top: 40px; text-align: center; }
.partners > p {
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--txt-faint);
}
.partners ul {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 16px;
}
.partners li {
  padding: 14px 8px;
  font-size: 12px;
  color: #7C7C8C;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xs);
  background: rgba(255, 255, 255, .015);
}

/* ------------------------------- 最新资讯 ------------------------------ */
.news-grid { display: grid; gap: 12px; }
.news-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: border-color .22s var(--ease), transform .22s var(--ease),
    background-color .22s var(--ease);
}
.news-card:hover {
  border-color: rgba(139, 92, 246, .5);
  background: var(--panel-2);
  transform: translateY(-3px);
}
.news-card > a {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 20px;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--txt-faint);
  font-variant-numeric: tabular-nums;
}
.news-tag {
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 500;
  color: #CDBFFF;
  background: rgba(139, 92, 246, .12);
  border: 1px solid rgba(139, 92, 246, .28);
  border-radius: var(--r-pill);
}
.news-card h3 {
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -.01em;
  color: #fff;
}
.news-card p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--txt-dim);
}
.news-more {
  margin-top: auto;
  padding-top: 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-2);
}
.news-card:hover .news-more { color: #fff; }

.news-actions { margin-top: 28px; text-align: center; }

.news-date-group { margin-top: 40px; }
.news-date-group:first-of-type { margin-top: 32px; }
.news-date-group h2 {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--txt-dim);
  font-variant-numeric: tabular-nums;
}
.news-date-group h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
.news-date-group .news-grid { margin-top: 16px; }

.doc-wrap .art-lede {
  margin-top: 16px;
  font-size: clamp(16px, 2.2vw, 18px);
  line-height: 1.75;
  color: var(--txt-2);
}
.art-nav {
  display: grid;
  gap: 10px;
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}
.art-nav span:empty { display: none; }
.art-nav a {
  display: block;
  padding: 15px 18px;
  color: var(--txt-2);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  transition: border-color .2s var(--ease), color .2s var(--ease),
    transform .2s var(--ease);
}
.art-nav a:hover {
  color: #fff;
  border-color: rgba(139, 92, 246, .5);
  transform: translateY(-2px);
}
.doc-wide { max-width: 1120px; }

/* ------------------------------- FAQ ----------------------------------- */
.faq-grid { display: grid; gap: 10px; }
.qa {
  padding: 2px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}
.qa:hover { border-color: #34343F; }
.qa[open] {
  border-color: rgba(139, 92, 246, .45);
  background: var(--panel-2);
}
.qa summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--txt);
}
.qa summary::after {
  content: "+";
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  font-size: 15px;
  line-height: 1;
  color: var(--brand-2);
  border: 1px solid rgba(34, 211, 238, .25);
  border-radius: 50%;
  transition: transform .2s var(--ease), background-color .2s var(--ease);
}
.qa[open] summary::after {
  transform: rotate(45deg);
  background: rgba(34, 211, 238, .1);
}
.qa-body { padding-bottom: 18px; }
.qa-body p { font-size: 14px; line-height: 1.8; color: var(--txt-dim); }

/* ------------------------------- 底部 CTA ------------------------------ */
.cta-wrap {
  padding: 0 clamp(20px, 3vw, 28px) clamp(64px, 8vw, 96px);
}
.cta-inner {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(44px, 7vw, 76px) clamp(24px, 3vw, 32px);
  text-align: center;
  background:
    radial-gradient(800px 320px at 12% -10%, rgba(34, 211, 238, .26), transparent 62%),
    radial-gradient(700px 420px at 92% 110%, rgba(245, 184, 65, .14), transparent 58%),
    linear-gradient(140deg, #3B1785 0%, #5B21B6 46%, #221A52 100%);
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: clamp(20px, 3vw, 30px);
  box-shadow: 0 40px 90px -40px rgba(109, 40, 217, .8);
  overflow: hidden;
}
.cta-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 50%, #000, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000, transparent 78%);
  opacity: .5;
  pointer-events: none;
}
.cta-inner > * { position: relative; }
.cta-inner h2 {
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.22;
  letter-spacing: -.03em;
  font-weight: 800;
  color: #fff;
  text-wrap: balance;
}
.cta-inner p {
  margin-top: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, .8);
}
.cta-btns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

/* ------------------------------- 页脚 ---------------------------------- */
.foot {
  padding: 56px 0 28px;
  background: #050507;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  color: var(--txt-dim);
}
.foot-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 20px;
}
.foot-brand { grid-column: 1 / -1; }
.foot-brand .brand { color: #fff; }
.foot-brand p {
  margin-top: 14px;
  max-width: 320px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--txt-faint);
}
.foot-title {
  margin-bottom: 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #fff;
}
.foot-col ul { display: flex; flex-direction: column; gap: 10px; }
.foot-col a { font-size: 13px; color: var(--txt-dim); transition: color .2s var(--ease); }
.foot-col a:hover { color: #fff; }
.social { flex-direction: row; flex-wrap: wrap; gap: 8px; }
.social a {
  display: inline-block;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--txt-dim);
  border: 1px solid #23232C;
  border-radius: var(--r-pill);
  transition: border-color .2s var(--ease), color .2s var(--ease),
    background-color .2s var(--ease);
}
.social a:hover { color: #fff; border-color: #3A3A4A; background: #0E0E14; }

.foot-bottom {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #171719;
  font-size: 12px;
  color: var(--txt-faint);
}
.foot-links { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.foot-links a:hover { color: #fff; }

/* ------------------------------- 内页文档 ------------------------------- */
.doc-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  white-space: nowrap;
}
.doc-nav > a:not(.btn) { color: var(--txt-dim); }
.doc-nav > a:not(.btn):hover { color: #fff; }

.doc-wrap {
  max-width: 780px;
  margin: 0 auto;
  padding: 36px 20px 72px;
}
.doc-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  margin-bottom: 24px;
  font-size: 13px;
  color: var(--txt-dim);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .02);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.doc-back:hover { color: #fff; border-color: #3A3A4A; }

.doc-wrap h1 {
  margin-top: 10px;
  font-size: clamp(28px, 4.6vw, 40px);
  line-height: 1.22;
  letter-spacing: -.03em;
  font-weight: 800;
  color: #fff;
  text-wrap: balance;
}
.doc-wrap .doc-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--txt-faint);
  font-variant-numeric: tabular-nums;
}
.doc-wrap h2 {
  margin-top: 44px;
  padding-top: 26px;
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.4;
  letter-spacing: -.02em;
  color: #fff;
  border-top: 1px solid var(--line-soft);
}
.doc-wrap h2:first-of-type { margin-top: 36px; }
.doc-wrap > p,
.doc-wrap > ul > li {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--txt-dim);
}
.doc-wrap > ul { list-style: disc; padding-left: 22px; }
.doc-wrap > ul > li { margin-top: 8px; }
.doc-wrap :where(p, li) a {
  color: var(--brand-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.doc-wrap :where(p, li) a:hover { color: #fff; }

.doc-wrap .doc-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}
.doc-wrap .doc-foot a {
  color: var(--txt-dim);
  text-decoration: none;
}
.doc-wrap .doc-foot a:hover { color: #fff; }

main.doc-wrap .news-date-group h2 {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 40px;
  padding-top: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--txt-dim);
  border-top: 0;
  font-variant-numeric: tabular-nums;
}
main.doc-wrap .news-date-group h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
main.doc-wrap .news-date-group:first-of-type h2 { margin-top: 32px; }

/* ------------------------------- 断点 ---------------------------------- */
@media (min-width: 576px) {
  .hero { padding-top: 44px; }
  .metrics-row { grid-template-columns: repeat(4, 1fr); gap: 0 24px; }
  .scene-deck { grid-template-columns: repeat(2, 1fr); }
  .proof-grid { grid-template-columns: repeat(3, 1fr); }
  .partners ul { grid-template-columns: repeat(6, 1fr); }
  .platform-pills { grid-template-columns: repeat(4, 1fr); }
  .song-head,
  .song-row { grid-template-columns: 40px minmax(0, 1fr) 116px 58px; }
  .song-head span:nth-child(3),
  .song-row > span:nth-child(3) { display: block; }
  .song-row > span:nth-child(4) { text-align: right; }
  .quotes { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .news-lead { grid-column: 1 / -1; }
  .news-lead > a { padding: 24px; }
  .news-lead h3 { font-size: 20px; }
  .doc-wrap { padding-left: 24px; padding-right: 24px; }
}

@media (min-width: 768px) {
  :root { --head-h: 72px; }

  .container { padding: 0 28px; }
  .hero { padding-top: 56px; }
  .hero-grid { padding: 28px 0 68px; }

  .menu-btn { display: none; }
  .nav-drawer {
    position: static;
    inset: auto;
    max-height: none;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 28px;
    padding: 0;
    background: transparent;
    border: 0;
    overflow: visible;
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }
  .nav-links { flex-direction: row; gap: 26px; }
  .nav-links a {
    position: relative;
    padding: 6px 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--txt-dim);
    border-bottom: 0;
  }
  .nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1.5px;
    background: var(--brand-2);
    transform: scaleX(0);
    transition: transform .2s var(--ease);
  }
  .nav-links a:hover,
  .nav-links a.active { color: #fff; }
  .nav-links a:hover::after,
  .nav-links a.active::after { transform: scaleX(1); }

  .hero h1 { font-size: 56px; }
  .lede { font-size: 16px; }
  .float-note { display: inline-flex; }

  .bento { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .tile { padding: 28px; }
  .tile-wide {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1.02fr .98fr;
    gap: 40px;
    align-items: center;
  }
  .tile-wide .mock { margin-top: 0; }

  .scene-deck { grid-template-columns: repeat(3, 1fr); gap: 16px; }

  .song-head,
  .song-row { grid-template-columns: 44px minmax(0, 1fr) 130px 78px 108px; }
  .song-head span:nth-child(5),
  .song-row > span:nth-child(5) { display: block; }
  .song-row > span:nth-child(5) { color: var(--txt-dim); font-size: 12px; }
  .song-head span:nth-child(4),
  .song-head span:nth-child(5) { text-align: right; }

  .ai-grid { grid-template-columns: 1fr 1fr; gap: 48px; }
  .quotes { grid-template-columns: repeat(3, 1fr); }

  .foot-grid { grid-template-columns: repeat(5, 1fr); gap: 28px; }
  .foot-brand { grid-column: span 2; }
  .foot-bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .doc-wrap { padding: 48px 28px 84px; }
  .doc-nav { gap: 24px; }
  .art-nav { grid-template-columns: 1fr 1fr; }
  .art-nav a:only-child { grid-column: 1 / -1; }
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.02fr .98fr;
    gap: 64px;
    padding: 44px 0 86px;
  }
  .hero h1 { font-size: 64px; }
  .now-card { padding: 24px; }
  .disc { width: 156px; height: 156px; }
  .now-title { font-size: 18px; }

  .section-head {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .72fr);
    column-gap: 56px;
    row-gap: 14px;
    max-width: none;
    align-items: end;
  }
  .section-head .eyebrow { grid-column: 1; }
  .section-head h2 { grid-column: 1; margin-top: 0; }
  .section-head .lead {
    grid-column: 2;
    grid-row: 2;
    margin-top: 0;
    padding-bottom: 4px;
  }
  .dl-wrap .section-head {
    display: block;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
  }

  .bento { grid-template-columns: repeat(2, 1fr); }
  .tile-wide { grid-template-columns: 1.04fr .96fr; gap: 48px; }

  .faq-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .faq-grid .qa { align-self: start; }

  .news-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .news-lead { grid-column: 1 / -1; }
  .news-lead > a {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    column-gap: 40px;
    row-gap: 0;
    align-items: start;
    padding: 30px;
  }
  .news-lead .news-meta { grid-column: 1 / -1; }
  .news-lead h3 {
    grid-column: 1;
    grid-row: 2;
    margin-top: 14px;
    font-size: 25px;
    line-height: 1.35;
  }
  .news-lead p {
    grid-column: 2;
    grid-row: 2;
    margin-top: 18px;
    font-size: 14px;
    padding-left: 32px;
    border-left: 1px solid var(--line);
  }
  .news-lead .news-more { grid-column: 2; grid-row: 3; padding-left: 32px; }

  .doc-wrap { max-width: 800px; }
  .doc-wide { max-width: 1120px; }
}

@media (min-width: 1200px) {
  .hero h1 { font-size: 70px; }
  .section-head h2 { font-size: 38px; }
}

@media (max-width: 639px) {
  .doc-nav > a:not(.btn) { display: none; }
  .doc-nav .btn { min-height: 36px; padding: 0 14px; }
}

@media (max-width: 400px) {
  .hero-facts { grid-template-columns: repeat(2, 1fr); row-gap: 14px; }
  .platform-pills { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .disc, .eq i, .ticker-track, .pulse { animation: none !important; }
  .reveal.in { animation: none !important; }
  * { transition-duration: .01ms !important; }
}