/* 灵气音乐首页 · iOS 视觉同步层
   仅作用于 body.home-page，不影响工作台与其它说明页面。 */

:root {
  color-scheme: dark;
  --bg: #111713;
  --bg-soft: #19211c;
  --bg-card: #202a24;
  --ink: #f5f7f5;
  --ink-soft: rgba(245, 247, 245, 0.78);
  --ink-mute: #9da9a1;
  --sage: #86aa91;
  --sage-deep: #668b72;
  --sand: #cdaa70;
  --sand-soft: #e0c596;
  --line: rgba(255, 255, 255, 0.09);
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.18);
  --shadow-md: 0 18px 44px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 28px 80px rgba(0, 0, 0, 0.4);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
}

html {
  background: var(--bg);
  scroll-padding-top: 92px;
}

body.home-page {
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    radial-gradient(900px 620px at -8% 18%, rgba(85, 122, 101, 0.28), transparent 64%),
    radial-gradient(820px 720px at 108% 62%, rgba(102, 86, 116, 0.2), transparent 62%),
    linear-gradient(180deg, rgba(12, 17, 14, 0.08), rgba(8, 12, 10, 0.38));
  background-attachment: scroll;
  min-height: 100vh;
}

body.home-page::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 520px;
  pointer-events: none;
  z-index: -1;
  background: radial-gradient(520px 320px at 52% 4%, rgba(205, 170, 112, 0.07), transparent 70%);
}

/* 顶栏 */
.home-page .nav {
  background: rgba(17, 23, 19, 0.97);
  border-bottom: 0;
  box-shadow: 0 16px 42px rgba(8, 12, 10, 0.18);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transform: translateZ(0);
}

.home-page .nav-inner {
  max-width: 1240px;
  min-height: 80px;
  padding: 12px 24px;
}

.home-page .logo {
  gap: 12px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.home-page .logo-text > span,
.home-page .hero h1,
.home-page .advanced-title,
.home-page .section-title,
.home-page .track-title,
.home-page .player-title,
.home-page .hero-stats strong,
.home-page h1,
.home-page h2,
.home-page h3,
.home-page h4,
.home-page h5,
.home-page h6 {
  font-family: var(--serif);
}

.home-page .logo-text > span {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.home-page .logo-mark {
  width: 48px;
  height: 48px;
  border-radius: 13px;
  background-image: url("app-logo.png");
  background-size: cover;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3), 0 0 28px rgba(134, 170, 145, 0.12);
}

.home-page .logo-text small {
  margin-top: 5px;
  color: var(--ink-mute);
  font-size: 10px;
  letter-spacing: 0.11em;
}

.home-page .nav-links a {
  color: var(--ink-mute);
  font-weight: 500;
}

.home-page .nav-links a:hover { color: var(--ink); }
.home-page .nav-links a.nav-charity { color: var(--sand); }

.home-page .nav-cta {
  padding: 10px 17px;
  color: #102017;
  background: var(--sage);
  box-shadow: 0 10px 30px rgba(102, 139, 114, 0.24);
}

.home-page .nav-cta:hover {
  background: #99bba3;
  box-shadow: 0 14px 34px rgba(102, 139, 114, 0.3);
}

.home-page .nav-cta-badge {
  color: #f4e5c9;
  background: rgba(17, 23, 19, 0.32);
}

/* Hero */
.home-page .hero {
  max-width: 1240px;
  min-height: 620px;
  padding: 112px 24px 82px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  grid-template-rows: repeat(4, auto);
  align-content: center;
  align-items: center;
  column-gap: clamp(48px, 8vw, 116px);
  text-align: left;
  background-image: url("hero-lines.svg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.home-page .hero > * { grid-column: 1; }

.home-page .hero::after {
  content: none;
}

.home-page .hero-eyebrow {
  justify-self: start;
  margin-bottom: 22px;
  color: var(--sage);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.28em;
}

.home-page .hero h1 {
  max-width: 720px;
  margin-bottom: 22px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(48px, 6vw, 78px);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.025em;
}

.home-page .hero p {
  max-width: 610px !important;
  margin: 0 0 40px;
  color: var(--ink-soft);
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.85;
}

.home-page .hero p span { white-space: normal !important; }

.home-page .hero-stats {
  justify-content: flex-start;
  gap: clamp(28px, 4vw, 52px);
  max-width: 620px;
  margin: 0;
  padding-top: 26px;
  border-color: var(--line);
}

.home-page .hero-stats div { text-align: left; }
.home-page .hero-stats strong {
  color: var(--ink);
  font-size: 25px;
  font-weight: 600;
}
.home-page .hero-stats span { color: var(--ink-mute); }

/* AI 创作入口 */
.home-page .advanced-banner {
  max-width: 1240px;
  padding: 0 24px;
}

.home-page .advanced-card {
  padding: 26px 30px;
  border: 1px solid rgba(134, 170, 145, 0.18);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(32, 42, 36, 0.98), rgba(24, 33, 28, 0.96));
  box-shadow: var(--shadow-md);
}

.home-page .advanced-card::before {
  background-image:
    radial-gradient(480px 240px at 92% 46%, rgba(134, 170, 145, 0.18), transparent 72%),
    radial-gradient(280px 180px at 5% 110%, rgba(102, 86, 116, 0.18), transparent 72%);
}

.home-page .advanced-icon {
  width: 58px;
  height: 58px;
  color: var(--sage);
  background: rgba(134, 170, 145, 0.11);
  border-color: rgba(134, 170, 145, 0.22);
}

.home-page .advanced-eyebrow { color: var(--sage); }
.home-page .advanced-title {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
}
.home-page .advanced-desc { color: var(--ink-mute); }
.home-page .advanced-arrow {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.05);
}

/* 音乐库 */
.home-page .section {
  max-width: 1240px;
  padding: 84px 24px 40px;
}

.home-page .section-header { margin-bottom: 22px; }
.home-page .section-sub {
  color: var(--sage);
  font-weight: 600;
  letter-spacing: 0.18em;
}
.home-page .section-title {
  margin-top: 4px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 600;
  letter-spacing: -0.015em;
}

.home-page .filters {
  gap: 9px;
  margin-bottom: 30px;
}

.home-page .chip {
  padding: 9px 17px;
  color: var(--ink-soft);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.035);
  font-weight: 500;
}
.home-page .chip:hover {
  color: var(--ink);
  border-color: rgba(134, 170, 145, 0.4);
  background: rgba(134, 170, 145, 0.09);
}
.home-page .chip.active {
  color: #102017;
  border-color: var(--sage);
  background: var(--sage);
}

.home-page .tracks {
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}

.home-page .track {
  gap: 14px;
  padding: 12px;
  overflow: hidden;
  border-color: var(--line);
  border-radius: var(--radius-md);
  background: rgba(31, 41, 35, 0.94);
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.12);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  content-visibility: auto;
  contain: layout paint style;
  contain-intrinsic-size: auto 390px;
}
.home-page .track:hover {
  transform: translateY(-4px);
  border-color: rgba(134, 170, 145, 0.22);
  box-shadow: var(--shadow-md);
}
.home-page .track.playing {
  border-color: var(--sage);
  box-shadow: 0 0 0 2px rgba(134, 170, 145, 0.16), var(--shadow-md);
}

.home-page .track-cover { border-radius: 12px; }
.home-page .track-cover .cover-placeholder,
.home-page .player-cover .cover-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1;
  filter: none;
}
.home-page .track-cover .duration {
  color: var(--ink);
  background: rgba(9, 13, 11, 0.68);
}
.home-page .track-title {
  color: var(--ink);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0;
}
.home-page .track-meta { color: var(--ink-mute); }
.home-page .track-actions {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(44px, 1fr);
  gap: 9px;
  width: 100%;
  border-color: var(--line);
}

.home-page .btn-play {
  width: 100%;
  height: 42px;
  padding: 0 17px;
  gap: 7px;
  flex: none;
  font-weight: 600;
  color: #102017;
  background: var(--sage);
}
.home-page .btn-play:hover { background: #9bbda5; }
.home-page .btn-download {
  width: 100%;
  height: 42px;
  min-width: 0;
  padding: 0;
  flex: none;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.055);
}
.home-page .btn-download:hover {
  color: var(--ink);
  background: rgba(134, 170, 145, 0.13);
}

.home-page .empty { color: var(--ink-mute); }
.home-page .share-toast {
  color: var(--ink);
  background: rgba(31, 41, 35, 0.96);
  border: 1px solid var(--line);
}

/* 仅首页播放器改为 iOS 暗色浮层 */
.home-page .player {
  left: 18px;
  right: 18px;
  bottom: 16px;
  padding: 12px 20px;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 22px;
  background: rgba(14, 20, 16, 0.97);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.48);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transform: translateZ(0);
}
.home-page .player-inner { max-width: 1160px; }
.home-page .player-cover { border-radius: 10px; }
.home-page .player-title { color: var(--ink); font-weight: 600; }
.home-page .player-cat { color: var(--ink-mute); }
.home-page .player-btn { color: var(--ink-soft); }
.home-page .player-btn:hover { color: var(--ink); }
.home-page .player-btn-main { color: #102017; background: var(--sage); }
.home-page .player-btn-main:hover { color: #102017; background: #9bbda5; }
.home-page .progress-bar,
.home-page .volume-slider { background: rgba(255, 255, 255, 0.12); }
.home-page .progress-fill { background: var(--sage); }
.home-page .volume-slider::-webkit-slider-thumb { background: var(--ink); }
.home-page .volume-slider::-moz-range-thumb { background: var(--ink); }
.home-page .player .btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  min-width: 42px;
  padding: 0;
  flex: 0 0 42px;
  gap: 0;
  line-height: 0;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.07);
}
.home-page .player .btn-download svg {
  display: block;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin: 0;
}
.home-page .player .btn-download span { display: none; }
.home-page .player .btn-download:hover {
  color: var(--ink);
  background: rgba(134, 170, 145, 0.14);
}

.home-page .footer {
  margin-top: 82px;
  padding-bottom: 150px;
  color: var(--ink-mute);
  border-color: var(--line);
  background: rgba(9, 13, 11, 0.32);
}
.home-page .footer-quote { color: var(--ink-soft); }

@media (max-width: 900px) {
  .home-page .hero {
    min-height: 540px;
    grid-template-columns: minmax(0, 1fr) 220px;
    column-gap: 44px;
    padding-top: 82px;
  }
  .home-page .nav-links { gap: 18px; }
}

@media (max-width: 680px) {
  html { scroll-padding-top: 76px; }
  body.home-page { padding-bottom: 132px; }

  .home-page .nav-inner {
    min-height: 70px;
    padding: 10px 16px;
  }
  .home-page .logo-mark {
    width: 42px;
    height: 42px;
    border-radius: 12px;
  }
  .home-page .logo { font-size: 18px; }
  .home-page .logo-text small { display: none; }
  .home-page .nav-cta { padding: 9px 12px; font-size: 12px; }
  .home-page .nav-cta-spark { display: none; }

  .home-page .hero {
    min-height: 0;
    display: block;
    padding: 76px 16px 50px;
  }
  .home-page .hero {
    background-position: 61% center;
    background-size: auto 100%;
  }
  .home-page .hero-eyebrow { margin-bottom: 16px; font-size: 10px; }
  .home-page .hero h1 {
    margin-bottom: 18px;
    font-size: clamp(40px, 12vw, 54px);
    line-height: 1.08;
  }
  .home-page .hero p { margin-bottom: 30px; font-size: 15px; line-height: 1.75; }
  .home-page .hero-stats { gap: 24px; padding-top: 22px; }
  .home-page .hero-stats strong { font-size: 20px; }
  .home-page .hero-stats span { font-size: 9px; letter-spacing: 0.12em; }

  .home-page .advanced-banner { padding: 0 16px; }
  .home-page .advanced-card { padding: 18px; border-radius: 20px; }
  .home-page .advanced-icon { width: 48px; height: 48px; }
  .home-page .advanced-title { font-size: 17px; }
  .home-page .advanced-desc { display: none; }

  .home-page .section { padding: 62px 16px 28px; }
  .home-page .section-title { font-size: 32px; }
  .home-page .filters { margin-right: -16px; margin-bottom: 24px; padding-right: 16px; }

  /* 手机端转成接近 iOS 音乐库的紧凑列表，同时保留全部操作。 */
  .home-page .tracks { display: flex; flex-direction: column; gap: 5px; }
  .home-page .track {
    display: grid;
    grid-template-columns: 78px minmax(0, 1fr);
    grid-template-rows: auto auto;
    align-items: center;
    gap: 4px 13px;
    padding: 9px;
    border-color: transparent;
    border-radius: 14px;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    contain-intrinsic-size: auto 96px;
  }
  .home-page .track:hover {
    transform: none;
    border-color: transparent;
    background: rgba(255, 255, 255, 0.035);
    box-shadow: none;
  }
  .home-page .track.playing {
    border-color: rgba(134, 170, 145, 0.25);
    background: rgba(134, 170, 145, 0.07);
    box-shadow: none;
  }
  .home-page .track-cover {
    grid-column: 1;
    grid-row: 1 / 3;
    width: 78px;
    height: 78px;
    aspect-ratio: 1;
  }
  .home-page .track-cover .duration { bottom: 5px; right: 5px; padding: 2px 6px; }
  .home-page .track-info { grid-column: 2; min-width: 0; }
  .home-page .track-title {
    overflow: hidden;
    font-size: 16px;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .home-page .track-meta {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .home-page .track-actions {
    grid-column: 2;
    grid-template-columns: minmax(0, 2fr) minmax(34px, 1fr);
    gap: 7px;
    width: 100%;
    padding-top: 4px;
    border: 0;
  }
  .home-page .btn-play { width: 100%; height: 34px; padding: 0 12px; }
  .home-page .btn-download {
    width: 100%;
    height: 34px;
    min-width: 0;
    padding: 0;
    flex: none;
  }

  .home-page .player {
    left: 10px;
    right: 10px;
    bottom: max(10px, env(safe-area-inset-bottom));
    padding: 10px 12px;
    border-radius: 18px;
  }
  .home-page .player-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
  }
  .home-page .player-track { min-width: 0; }
  .home-page .player-cover { width: 44px; height: 44px; }
  .home-page .player-controls { width: auto; }
  .home-page .player-buttons { gap: 3px; }
  .home-page .player-buttons .player-btn:not(.player-btn-main),
  .home-page .player-progress,
  .home-page .player-extra { display: none; }
  .home-page .player-btn-main { width: 42px; height: 42px; }

  .home-page .footer { margin-top: 54px; padding-bottom: 130px; }
}

@media (prefers-reduced-motion: reduce) {
  .home-page .track:hover,
  .home-page .advanced-card:hover,
  .home-page .nav-cta:hover { transform: none; }
}