#chartPlayerModal .chart-player-controls {
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

#chartPlayerModal .chart-control-btn { grid-column: span 2; }
#chartPlayerModal .chart-control-field.course { grid-column: span 3; }
#chartPlayerModal .chart-control-field.hands,
#chartPlayerModal .chart-control-field.dominant { min-width: 0; }

#chartPlayerModal .chart-control-row {
  grid-column: 1 / -1;
  display: grid;
  gap: 12px;
  min-width: 0;
}

#chartPlayerModal .chart-control-row.hand-row {
  grid-template-columns: minmax(0, 1.7fr) minmax(170px, 1fr);
}

#chartPlayerModal .chart-control-row.speed-row {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

#chartPlayerModal .chart-control-row.chart-row {
  grid-template-columns: minmax(0, 1.35fr) minmax(120px, 1fr);
}

#chartPlayerModal .chart-control-row.chart-row:has(.branch[hidden]) {
  grid-template-columns: minmax(0, 1fr);
}

#chartPlayerModal .chart-control-row.chart-row > .chart-control-field.course,
#chartPlayerModal .chart-control-row.chart-row > .chart-control-field.branch {
  grid-column: auto;
  width: 100%;
  min-width: 0;
}

#chartPlayerModal .chart-control-field.branch[hidden] {
  display: none;
}

#chartPlayerModal .double-settings {
  grid-column: 1 / -1;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 12px;
  background: var(--bg2);
}

#chartPlayerModal .double-settings summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding: 0 14px;
  color: var(--text);
  font-size: .82rem;
  font-weight: 900;
  cursor: pointer;
  list-style: none;
}

#chartPlayerModal .double-settings summary::-webkit-details-marker { display: none; }
#chartPlayerModal .double-settings[open] summary { border-bottom: 1px solid rgba(255,255,255,.1); }
#chartPlayerModal .double-summary-actions { display: flex; align-items: center; gap: 12px; }
#chartPlayerModal .double-summary-state { color: var(--muted); font-size: .68rem; font-weight: 700; }
#chartPlayerModal .double-summary-state::before { content: '展开'; }
#chartPlayerModal .double-settings[open] .double-summary-state::before { content: '收起'; }

#chartPlayerModal .double-master-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

#chartPlayerModal .double-master-switch input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

#chartPlayerModal .double-switch-track {
  position: relative;
  width: 44px;
  height: 24px;
  border-radius: 999px;
  background: #474657;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.08);
  transition: background .18s ease;
}

#chartPlayerModal .double-switch-track::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #d5d2dc;
  box-shadow: 0 2px 5px rgba(0,0,0,.35);
  transition: transform .18s ease, background .18s ease;
}

#chartPlayerModal .double-master-switch input:checked + .double-switch-track { background: var(--red); }
#chartPlayerModal .double-master-switch input:checked + .double-switch-track::after { transform: translateX(20px); background: #fff; }
#chartPlayerModal .double-master-switch input:focus-visible + .double-switch-track { outline: 2px solid #79d9ff; outline-offset: 3px; }

#chartPlayerModal .double-settings-body { display: grid; gap: 10px; padding: 12px; }
#chartPlayerModal .double-settings-level { display: grid; grid-template-columns: 110px minmax(0, 1fr); align-items: start; gap: 10px; }
#chartPlayerModal .double-settings-level-title { padding-top: 14px; color: var(--muted); font-size: .68rem; font-weight: 700; }
#chartPlayerModal .chart-check-group {
  min-height: 46px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 7px 9px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  background: var(--bg3);
}

#chartPlayerModal .chart-check {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 32px;
  padding: 5px 10px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 9px;
  color: #d8d6e3;
  font-size: .72rem;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}

#chartPlayerModal .chart-check input { width: 17px; height: 17px; margin: 0; accent-color: var(--red); }
#chartPlayerModal .chart-check:has(input:checked) { border-color: #ef5069; background: rgba(239,32,64,.12); color: #fff; }
#chartPlayerModal .double-settings:has(#chartPlayerDoubleEnabled:not(:checked)) .double-settings-level { opacity: .46; }
#chartPlayerModal .double-settings-stack { display: grid; gap: 8px; }
#chartPlayerModal .quad-pattern-row {
  display: grid;
  grid-template-columns: 100px minmax(0, 220px);
  align-items: center;
  gap: 10px;
  padding: 7px 9px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  background: var(--bg3);
}
#chartPlayerModal .quad-pattern-row label { color: var(--muted); font-size: .68rem; }
#chartPlayerModal .quad-pattern-row .chart-control-select:disabled { opacity: .42; cursor: not-allowed; }

@media (max-width: 680px), (hover: none) and (pointer: coarse) {
  #chartPlayerModal .chart-player-controls { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  #chartPlayerModal .chart-control-btn { grid-column: span 2; }
  #chartPlayerModal .chart-control-field.course { grid-column: 1 / -1; }
  #chartPlayerModal .chart-control-row > .chart-control-field { grid-column: auto !important; }
  #chartPlayerModal .chart-control-row.hand-row { grid-template-columns: minmax(0, 1.45fr) minmax(120px, 1fr); }
  #chartPlayerModal .chart-control-row.speed-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #chartPlayerModal .double-settings-level { grid-template-columns: 1fr; gap: 4px; }
  #chartPlayerModal .double-settings-level-title { padding: 0 2px; }
  #chartPlayerModal .quad-pattern-row { grid-template-columns: 90px minmax(0, 1fr); }
}

/* 正式播放器：进度条保持在谱面下方，设置与鼓面在宽屏并排。 */
#chartPlayerModal .chart-player-progress-row {
  padding-bottom: 10px;
}

#chartPlayerModal .chart-player-music-test[hidden] {
  display: none !important;
}

#chartPlayerModal .chart-player-music-test {
  margin: 0 20px 12px;
  padding: 12px 14px;
  border: 1px solid rgba(86, 174, 255, .32);
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(32, 92, 148, .18), rgba(20, 20, 30, .96));
}

#chartPlayerModal .chart-player-music-head,
#chartPlayerModal .chart-player-music-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

#chartPlayerModal .chart-player-music-head strong,
#chartPlayerModal .chart-player-music-head small {
  display: block;
}

#chartPlayerModal .chart-player-music-head small,
#chartPlayerModal .chart-player-music-status,
#chartPlayerModal .chart-player-music-bytes {
  margin-top: 3px;
  color: #8e8b9e;
  font-size: 11px;
}

#chartPlayerModal .chart-player-music-toggle,
#chartPlayerModal .chart-player-music-controls label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #dedbe7;
  font-size: 12px;
}

#chartPlayerModal .chart-player-music-toggle input {
  width: 18px;
  height: 18px;
  accent-color: #ef2847;
}

#chartPlayerModal .chart-player-music-controls {
  justify-content: flex-start;
  margin-top: 10px;
}

#chartPlayerModal #chartPlayerMusicVolume {
  width: min(220px, 38vw);
  accent-color: #ef2847;
}

#chartPlayerModal .chart-player-music-reset {
  padding: 6px 10px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 8px;
  background: #20202b;
  color: #d9d6df;
  cursor: pointer;
}

#chartPlayerModal .chart-player-music-status.is-error {
  color: #ff8493;
}

#chartPlayerModal .chart-player-music-bytes {
  color: #86c9ff;
  font-variant-numeric: tabular-nums;
}

#chartPlayerModal .chart-player-lower-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: stretch;
  gap: 12px;
  margin: 0 20px 18px;
}

#chartPlayerModal .chart-player-options-pane,
#chartPlayerModal .chart-player-drum-pane {
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px;
  background: #171720;
}

#chartPlayerModal .chart-player-options-pane .chart-player-controls {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  padding: 12px;
}

#chartPlayerModal .chart-player-options-pane .chart-control-btn {
  grid-column: span 2;
  min-width: 0;
  padding-inline: 6px;
}

#chartPlayerModal .chart-player-options-pane .chart-control-field.course {
  grid-column: 1 / -1;
}

#chartPlayerModal .chart-player-options-pane .chart-control-row.hand-row {
  grid-template-columns: minmax(0, 1.55fr) minmax(118px, 1fr);
}

#chartPlayerModal .chart-player-options-pane .double-settings-level {
  grid-template-columns: 1fr;
  gap: 4px;
}

#chartPlayerModal .chart-player-options-pane .double-settings-level-title {
  padding: 0 2px;
}

#chartPlayerModal .chart-player-options-pane .quad-pattern-row {
  grid-template-columns: 88px minmax(0, 1fr);
}

#chartPlayerModal .chart-player-options-pane .chart-player-foot {
  padding: 2px 12px 12px;
  flex-direction: column;
  gap: 3px;
}

#chartPlayerModal .chart-player-drum-pane {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  background: #08090e;
}

#chartPlayerModal .chart-player-drum-stage {
  width: 100%;
  overflow: hidden;
}

#chartPlayerModal #chartPlayerDrumCanvas {
  display: block;
  width: 145%;
  max-width: none;
  height: auto;
  margin-left: -22.5%;
}

/* 半栏开始拥挤时就恢复上下排列，不等待最窄的手机断点。 */
@media (max-width: 900px) {
  #chartPlayerModal .chart-player-lower-grid {
    grid-template-columns: minmax(0, 1fr);
    margin: 0 10px 12px;
  }

  #chartPlayerModal .chart-player-drum-pane {
    order: -1;
    min-height: 0;
  }

  #chartPlayerModal #chartPlayerDrumCanvas {
    width: 100%;
    margin-left: 0;
  }
}

@media (max-width: 560px) {
  #chartPlayerModal .chart-player-progress-row {
    padding-inline: 8px;
  }

  #chartPlayerModal .chart-player-options-pane .chart-control-row.hand-row,
  #chartPlayerModal .chart-player-options-pane .chart-control-row.speed-row {
    grid-template-columns: minmax(0, 1fr);
  }

  #chartPlayerModal .chart-player-options-pane .chart-control-row > .chart-control-field {
    width: 100%;
    min-width: 0;
  }

  #chartPlayerModal .chart-player-music-test {
    margin-inline: 8px;
  }

  #chartPlayerModal .chart-player-music-head {
    align-items: flex-start;
    flex-direction: column;
  }

  #chartPlayerModal .chart-player-music-controls {
    align-items: flex-start;
    flex-direction: column;
  }

  #chartPlayerModal #chartPlayerMusicVolume {
    width: min(230px, 68vw);
  }
}