:root {
  color-scheme: light;
  --ink: #1f2328;
  --muted: #66707a;
  --line: #d8dee4;
  --paper: #fbfaf6;
  --panel: #fff;
  --violet: #6d28d9;
  --teal: #0f766e;
  --gold: #b7791f;
  --staff: #d7dce2;
  --soft-violet: #f2ecff;
  --soft-teal: #e9f8f5;
  --shadow: 0 16px 38px rgba(31, 35, 40, .08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(109, 40, 217, .08), transparent 34%),
    linear-gradient(225deg, rgba(15, 118, 110, .08), transparent 38%),
    var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

button, a { font: inherit; }

button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, .5);
  border-radius: 6px;
  color: #fff;
  background: rgba(255, 255, 255, .12);
  cursor: pointer;
}

button:hover { background: rgba(255, 255, 255, .2); }

.page {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 42px;
}

.hero {
  overflow: hidden;
  border-radius: 8px;
  color: #fff;
  background:
    linear-gradient(120deg, rgba(24, 16, 48, .97), rgba(76, 29, 149, .92) 52%, rgba(15, 118, 110, .9)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .12) 0 2px, transparent 2px 50px);
  box-shadow: var(--shadow);
}

.hero nav {
  display: flex;
  gap: 10px;
  padding: 18px 22px 0;
}

.hero nav a {
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, .48);
  border-radius: 6px;
  color: #fff;
  text-decoration: none;
}

.hero section { padding: 34px 32px 40px; }

.kicker {
  margin: 0 0 12px;
  color: rgba(255, 255, 255, .74);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: 44px;
  line-height: 1.14;
  letter-spacing: 0;
}

.hero p:last-child {
  max-width: 960px;
  margin: 16px 0 0;
  color: rgba(255, 255, 255, .88);
  line-height: 1.8;
}

.song-meta, .guide, .score-card, .practice {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

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

.label {
  margin: 0 0 8px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
}

h2 {
  margin: 0;
  font-size: 24px;
  line-height: 1.25;
  letter-spacing: 0;
}

p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.76;
}

.meta-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 8px;
}

.meta-tags span {
  min-width: 48px;
  min-height: 36px;
  padding: 7px 12px;
  border-radius: 6px;
  color: var(--violet);
  background: var(--soft-violet);
  font-weight: 800;
  display: inline-grid;
  place-items: center;
}

.guide {
  margin-top: 16px;
  padding: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.guide article {
  padding: 15px;
  border: 1px solid #e6edf2;
  border-radius: 8px;
  background: #fbfcfd;
}

.guide strong {
  color: var(--teal);
  font-size: 18px;
}

.score-card {
  margin-top: 16px;
  padding: 20px;
}

.score-title {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
  margin-bottom: 16px;
}

.score-title span {
  flex: 0 0 auto;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--teal);
  background: var(--soft-teal);
  font-size: 13px;
  font-weight: 800;
}

.score-line {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.score-line + .score-line {
  margin-top: 14px;
}

.bar {
  min-height: 126px;
  padding: 12px;
  border: 1px solid #dfe5eb;
  border-radius: 8px;
  background:
    linear-gradient(#fff, #fff),
    repeating-linear-gradient(0deg, transparent 0 13px, var(--staff) 13px 14px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 8px;
}

.bar b {
  color: var(--violet);
  font-size: 20px;
}

.notes {
  min-height: 48px;
  color: #111827;
  font-family: "Times New Roman", "Microsoft YaHei", serif;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0;
  display: flex;
  align-items: center;
  word-spacing: 8px;
}

.lyrics {
  min-height: 30px;
  padding-top: 9px;
  border-top: 1px dashed #c9d1d9;
  color: #424a53;
  font-size: 16px;
  word-spacing: 6px;
}

.practice {
  margin-top: 16px;
  padding: 20px;
}

ol {
  margin: 12px 0 0;
  padding-left: 22px;
}

li {
  margin: 8px 0;
  color: var(--muted);
  line-height: 1.72;
}

@media (max-width: 900px) {
  .guide, .score-line {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .song-meta {
    align-items: start;
    flex-direction: column;
  }

  .meta-tags {
    justify-content: start;
  }
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 20px, 1180px);
    padding-top: 10px;
  }

  .hero nav {
    flex-direction: column;
    padding: 14px 14px 0;
  }

  .hero section {
    padding: 26px 18px 30px;
  }

  h1 { font-size: 32px; }

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

  .song-meta, .guide, .score-card, .practice {
    padding: 16px;
  }
}

@media print {
  body { background: #fff; }
  .page { width: 100%; padding: 0; }
  .hero, .song-meta, .guide, .score-card, .practice { box-shadow: none; }
  .hero {
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--line);
  }
  .hero nav { display: none; }
  .hero p:last-child, .kicker { color: var(--muted); }
  .score-card, .practice { break-inside: avoid; }
}