/* MLP Music — 与 PonyChat 主站设计语言统一 */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-deep: #0f172a;
  --bg-elevated: #1e293b;
  --surface: rgba(30, 41, 59, 0.72);
  --surface-hover: rgba(51, 65, 85, 0.88);
  --stroke: rgba(148, 163, 184, 0.12);
  --stroke-strong: rgba(167, 139, 250, 0.4);
  --text: #e0f2fe;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent-from: #a78bfa;
  --accent-to: #22d3ee;
  --accent-mid: #c4b5fd;
  --brand-gradient: linear-gradient(135deg, #a78bfa 0%, #22d3ee 100%);
  --shadow-glow: 0 0 80px rgba(167, 139, 250, 0.2);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --player-h: 80px;
  /* 顶栏内容区高度；总占用高度见 --header-h（含刘海安全区） */
  --header-inner-h: 58px;
  --header-h: calc(var(--header-inner-h) + env(safe-area-inset-top, 0px));
  --sidebar-w: 264px;
  --player-range-track-h: 5px;
}

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

body {
  height: 100dvh;
  max-height: 100dvh;
  background: var(--bg-deep);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

/* ── 背景层 ── */
.bg-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(167,139,250,.18), transparent),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(34,211,238,.10), transparent),
    radial-gradient(ellipse 50% 35% at 0% 80%, rgba(167,139,250,.08), transparent);
}


/* ── 顶栏 ── */
.top {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-right: 16px;
  padding-bottom: 0;
  padding-left: 12px;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(15,23,42,.88);
  border-bottom: 1px solid var(--stroke);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-img {
  width: 32px; height: 32px;
  border-radius: 10px;
  display: block;
  object-fit: contain;
  box-shadow: 0 6px 24px rgba(167,139,250,.4);
  animation: float 5s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

@media (prefers-reduced-motion: reduce) {
  .logo-img { animation: none; }
}

.brand-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -.03em;
  color: #e0f2fe;
}

.tabs {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.tab {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.875rem;
  font-family: var(--font-body);
  font-weight: 500;
  min-height: 36px;
  display: flex; align-items: center;
  transition: background .15s, color .15s, border-color .15s;
  -webkit-tap-highlight-color: transparent;
}

.tab.active {
  background: rgba(167,139,250,.15);
  border-color: var(--stroke-strong);
  color: var(--accent-mid);
}

.tab:not(.active):hover { background: rgba(148,163,184,.08); color: var(--text); }

.search-wrap { flex: 1; min-width: 0; }

.search {
  width: 100%;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: rgba(15,23,42,.6);
  color: var(--text);
  font-size: 0.9rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color .2s, background .2s;
}
.search::placeholder { color: var(--text-dim); }
.search:focus { border-color: var(--stroke-strong); background: rgba(30,41,59,.7); }

/* 移动端汉堡按钮（显示/隐藏侧边栏） */
.btn-menu {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.05);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
  align-items: center; justify-content: center;
  font-size: 18px;
  -webkit-tap-highlight-color: transparent;
}

/* 移动端搜索图标按钮（桌面隐藏） */
.btn-search-icon {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.05);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
  align-items: center; justify-content: center;
  -webkit-tap-highlight-color: transparent;
}

/* ── 整体布局：固定占用「顶栏～播放器」之间高度，避免整页滚动；左右列各自 overflow ── */
.shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: minmax(0, 1fr);
  height: calc(100dvh - var(--header-h) - var(--player-h));
  margin-top: var(--header-h);
  overflow: hidden;
  min-height: 0;
}

/* ── 侧边栏（音乐专辑筛选 + 乐谱列表共用） ── */
.sidebar {
  min-height: 0;
  height: 100%;
  max-height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 12px;
  border-right: 1px solid var(--stroke);
  background: rgba(15,23,42,.5);
  scrollbar-width: thin;
  scrollbar-color: rgba(167,139,250,.25) transparent;
  display: flex;
  flex-direction: column;
  align-self: stretch;
}

/* 侧栏 / 主内容 / 侧栏内乐谱列表：统一细滚动条（WebKit 与 Firefox 变量一致） */
.sidebar::-webkit-scrollbar,
#panelMusic.panel.active::-webkit-scrollbar,
.sidebar-section--scores .score-list::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.sidebar::-webkit-scrollbar-track,
#panelMusic.panel.active::-webkit-scrollbar-track,
.sidebar-section--scores .score-list::-webkit-scrollbar-track {
  background: transparent;
}
.sidebar::-webkit-scrollbar-thumb,
#panelMusic.panel.active::-webkit-scrollbar-thumb,
.sidebar-section--scores .score-list::-webkit-scrollbar-thumb {
  background: rgba(167, 139, 250, 0.28);
  border-radius: 999px;
}
.sidebar::-webkit-scrollbar-thumb:hover,
#panelMusic.panel.active::-webkit-scrollbar-thumb:hover,
.sidebar-section--scores .score-list::-webkit-scrollbar-thumb:hover {
  background: rgba(167, 139, 250, 0.45);
}

.sidebar-section {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.sidebar-section.hidden {
  display: none !important;
}

.sidebar-section--scores .score-list {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.sidebar-title {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 4px 6px 10px;
}

.album-filter { list-style: none; }

.album-filter li { margin-bottom: 2px; }

.album-filter button {
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: .84rem;
  font-family: var(--font-body);
  line-height: 1.35;
  min-height: 36px;
  transition: background .15s, color .15s;
  -webkit-tap-highlight-color: transparent;
}

.album-filter button:hover,
.album-filter button.active {
  background: rgba(167,139,250,.12);
  color: var(--accent-mid);
}

.album-filter .badge {
  float: right;
  font-size: .7rem;
  color: var(--text-dim);
  background: rgba(148,163,184,.1);
  border-radius: 999px;
  padding: 1px 7px;
  line-height: 1.5;
  margin-top: 1px;
}

.album-filter li.extras-item {
  margin-bottom: 0;
}

.album-filter li.extras-item button {
  padding-left: 18px;
  font-size: .78rem;
  color: var(--text-dim);
  min-height: 30px;
}

.album-filter li.extras-item button::before {
  content: "↳ ";
  color: var(--text-dim);
  font-size: .72rem;
}

.album-filter li.extras-item button:hover,
.album-filter li.extras-item button.active {
  color: var(--text-muted);
  background: rgba(148,163,184,.08);
}

/* ── 主内容：占满 shell 右列，内部再滚动 ── */
.main {
  min-width: 0;
  min-height: 0;
  height: 100%;
  max-height: 100%;
  overflow: hidden;
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.panel { display: none; }
.panel.active {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}
/* 音乐：专辑/曲目列表整块可滚（滚动条样式与 .sidebar 一致，见上节 ::-webkit-scrollbar） */
#panelMusic.panel.active {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  min-height: 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(167,139,250,.25) transparent;
}
/* 乐谱面板激活时为 flex 布局（须与上一行并列，否则 #panelScores 单独写 display 会压过 .panel { display:none }） */
#panelScores.panel.active {
  display: flex;
}

/* ── 专辑网格 ── */
.album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}

.album-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(145deg, rgba(30,41,59,.85), rgba(15,23,42,.65));
  border: 1px solid var(--stroke);
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  -webkit-tap-highlight-color: transparent;
}

.album-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(167,139,250,.2);
  border-color: var(--stroke-strong);
}

.album-card.extras-card {
  opacity: 0.75;
  border-style: dashed;
}

.album-card.extras-card:hover {
  opacity: 1;
}

.album-card.extras-card .album-card-title {
  font-size: .82rem;
}

.album-card.playing {
  border-color: var(--stroke-strong);
  box-shadow: 0 0 0 1px rgba(167,139,250,.3), 0 8px 24px rgba(167,139,250,.15);
}

.album-card.playing .album-card-meta::before {
  content: "▶ 播放中  ";
  color: var(--accent-from);
  font-weight: 600;
}

.album-cover {
  aspect-ratio: 1;
  background: linear-gradient(145deg, rgba(167,139,250,.25), rgba(34,211,238,.15));
  background-size: cover;
  background-position: center;
}

.album-card-body { padding: 10px 12px 12px; }

.album-card-title {
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
  margin: 0 0 4px;
}

.album-card-meta { font-size: .76rem; color: var(--text-dim); }

/* ── 曲目面板 ── */
.track-panel.hidden { display: none; }

.back {
  margin-bottom: 14px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.05);
  color: var(--text-muted);
  cursor: pointer;
  font-size: .875rem;
  font-family: var(--font-body);
  min-height: 40px;
  transition: background .15s, color .15s;
  -webkit-tap-highlight-color: transparent;
}
.back:hover { background: rgba(255,255,255,.08); color: var(--text); }

#trackPanelTitle {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text);
  margin-bottom: 14px;
}

.track-list { list-style: none; }

.track-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  border-bottom: 1px solid var(--stroke);
  transition: background .12s;
  cursor: pointer;
}

.track-list li:hover { background: rgba(148,163,184,.06); }

.track-list li.playing {
  background: rgba(167,139,250,.1);
  border-left: 2px solid var(--accent-from);
  padding-left: 8px;
}

.track-list li.playing .track-name {
  color: var(--accent-mid);
  font-weight: 600;
}

.track-list li.playing .track-num {
  color: var(--accent-from);
}

.track-num {
  flex-shrink: 0;
  width: 2rem;
  text-align: right;
  font-size: .8rem;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

.track-name { flex: 1; min-width: 0; font-size: .9rem; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.track-actions {
  flex-shrink: 0;
  display: flex;
  gap: 6px;
}

.track-actions button,
.track-actions a {
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--stroke-strong);
  background: rgba(167,139,250,.1);
  color: var(--accent-mid);
  cursor: pointer;
  font-size: .78rem;
  font-family: var(--font-body);
  text-decoration: none;
  min-height: 32px;
  display: flex; align-items: center;
  transition: background .15s;
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
}
.track-actions button:hover,
.track-actions a:hover { background: rgba(167,139,250,.2); }

/* ── 乐谱面板（列表在统一侧边栏；此处仅预览区；高度随主栏，不用 100dvh 撑破页面） ── */
#panelScores {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.score-list {
  list-style: none;
  scrollbar-width: thin;
  scrollbar-color: rgba(167,139,250,.2) transparent;
}

.score-list li {
  padding: 8px 8px 8px 14px;
  border-bottom: 1px solid var(--stroke);
  cursor: pointer;
  font-size: .84rem;
  color: var(--text-muted);
  line-height: 1.35;
  min-height: 44px;
  display: flex; align-items: center; gap: 6px;
  transition: background .12s, color .12s;
  -webkit-tap-highlight-color: transparent;
}
.score-list li:hover { background: rgba(167,139,250,.08); color: var(--text); }
.score-list li.active { background: rgba(167,139,250,.14); color: var(--accent-mid); }

.score-item-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  /* 允许折行让标题完整显示 */
  white-space: normal;
  line-height: 1.3;
}

/* 侧边栏里的 PDF 下载按钮 */
.btn-score-pdf-dl {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.04);
  color: var(--text-dim);
  font-size: .9rem;
  display: flex; align-items: center; justify-content: center;
  text-decoration: none;
  transition: background .12s, color .12s, border-color .12s;
  -webkit-tap-highlight-color: transparent;
  flex-shrink: 0;
}
.btn-score-pdf-dl:hover { background: rgba(167,139,250,.15); color: var(--accent-mid); border-color: var(--stroke-strong); }

/* 预览区 */
.score-viewer {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* 导航栏：翻页 + 下载当前页 */
.score-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  border-bottom: 1px solid var(--stroke);
  background: rgba(15,23,42,.8);
  flex-shrink: 0;
  gap: 12px;
}

.score-nav.hidden { display: none; }

.score-nav-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-score-nav {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.05);
  color: var(--text);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .12s, border-color .12s;
  -webkit-tap-highlight-color: transparent;
  outline: none;
}
.btn-score-nav:hover:not(:disabled) { background: rgba(255,255,255,.1); border-color: rgba(148,163,184,.3); }
.btn-score-nav:disabled { opacity: .3; cursor: default; }

.score-page-label {
  font-size: .84rem;
  color: var(--text-muted);
  min-width: 52px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.btn-score-dl-page {
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--stroke-strong);
  background: rgba(167,139,250,.12);
  color: var(--accent-mid);
  font-size: .78rem;
  font-family: var(--font-body);
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s;
  -webkit-tap-highlight-color: transparent;
  outline: none;
}
.btn-score-dl-page:hover { background: rgba(167,139,250,.24); }

/* 画布滚动区（单页显示） */
.score-canvas-wrap {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(15,23,42,.3);
  scrollbar-width: thin;
  scrollbar-color: rgba(167,139,250,.2) transparent;
}

.score-canvas-wrap canvas {
  width: 100%;
  max-width: 900px;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
  cursor: zoom-in;
  -webkit-tap-highlight-color: transparent;
}

/* ── 乐谱全屏预览 ── */
.score-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: env(safe-area-inset-top, 0) env(safe-area-inset-right, 0) env(safe-area-inset-bottom, 0) env(safe-area-inset-left, 0);
}

.score-lightbox.hidden { display: none !important; }

.score-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 15, 0.94);
  z-index: 0;
}

.score-lightbox-close {
  position: absolute;
  top: max(10px, env(safe-area-inset-top, 10px));
  right: max(10px, env(safe-area-inset-right, 10px));
  z-index: 2;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  color: var(--text);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s;
  -webkit-tap-highlight-color: transparent;
  outline: none;
}
.score-lightbox-close:hover { background: rgba(255,255,255,.18); }

.score-lightbox-chrome {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  padding: 10px 48px 8px;
  text-align: center;
  pointer-events: none;
}

.score-lightbox-page {
  display: block;
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.score-lightbox-hint {
  display: block;
  margin-top: 4px;
  font-size: .72rem;
  color: var(--text-dim);
}

.score-lightbox-stage {
  position: relative;
  z-index: 1;
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px 16px;
  touch-action: pan-y pinch-zoom;
}

.score-lightbox-canvas {
  max-width: 100%;
  max-height: calc(100dvh - 120px);
  width: auto !important;
  height: auto !important;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 40px rgba(0,0,0,.55);
  user-select: none;
  -webkit-user-select: none;
}

.pdf-hint {
  padding: 40px 24px;
  font-size: .84rem;
  color: var(--text-dim);
  text-align: center;
  align-self: center;
}

/* ── 播放器 ── */
.player {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--player-h);
  z-index: 30;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  padding-bottom: max(0px, env(safe-area-inset-bottom, 0px));
  background: rgba(15,23,42,.92);
  border-top: 1px solid var(--stroke);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* 桌面：左为封面/曲名/控制；DOM 中进度在首，故用 order 与视觉一致 */
.player-now {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 1 auto;
  min-width: 0;
  order: 1;
}

.player-art {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--brand-gradient);
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}

.player-meta {
  min-width: 0;
  flex: 0 1 180px;
}

.player-title {
  font-weight: 600;
  font-size: .9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

.player-sub {
  font-size: .75rem;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.btn-icon {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.06);
  color: var(--text);
  cursor: pointer;
  font-size: .95rem;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, border-color .15s, box-shadow .15s;
  -webkit-tap-highlight-color: transparent;
  flex-shrink: 0;
  outline: none;
}
.btn-icon:focus-visible {
  box-shadow: 0 0 0 2px rgba(167,139,250,.7);
}
.btn-icon:hover { background: rgba(255,255,255,.1); border-color: rgba(148,163,184,.3); }

.btn-icon .btn-icon-svg {
  display: block;
  flex-shrink: 0;
}

.btn-icon.primary {
  background: var(--brand-gradient);
  border: none;
  width: 42px; height: 42px;
  box-shadow: 0 4px 16px rgba(167,139,250,.35);
}

/* 播放/暂停：自绘 SVG，纯白矢量，无 emoji 字体边框 */
.btn-play {
  padding: 0;
  color: #fff;
}
.btn-play .btn-play-icon {
  display: block;
  flex-shrink: 0;
}
.btn-play .icon-pause.hidden,
.btn-play .icon-play.hidden {
  display: none !important;
}

.player-progress {
  flex: 1;
  min-width: 80px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  align-self: center;
  min-height: 0;
  order: 2;
}

.player-progress input[type="range"],
.player-vol input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: var(--player-range-track-h);
  margin: 0;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--accent-from) 0%,
    var(--accent-from) var(--fill, 0%),
    rgba(148,163,184,.18) var(--fill, 0%),
    rgba(148,163,184,.18) 100%
  );
  outline: none;
  cursor: pointer;
}

.player-progress input[type="range"] {
  flex: 1;
  min-width: 0;
}

.player-progress input[type="range"]::-webkit-slider-thumb,
.player-vol input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--brand-gradient);
  box-shadow: 0 0 6px rgba(167,139,250,.5);
  cursor: pointer;
}

.player-progress input[type="range"]::-moz-range-thumb,
.player-vol input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: none;
  border-radius: 50%;
  background: var(--brand-gradient);
  box-shadow: 0 0 6px rgba(167,139,250,.5);
  cursor: pointer;
}

.time,
.time-combined {
  font-size: .72rem;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  line-height: 1;
  white-space: nowrap;
}

/* 桌面：单行「当前 / 总时长」；手机端由 .player-progress-mobile-times 展示，此处隐藏 */
.player-progress-mobile-times {
  display: none;
}

.player-vol {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  flex: 0 0 110px;
  align-self: center;
  order: 3;
}

.player-vol input[type="range"] {
  flex: 1;
  min-width: 0;
}

.vol-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-dim);
}
.vol-icon-svg {
  display: block;
}

.btn-dl {
  flex-shrink: 0;
  order: 4;
  padding: 7px 13px;
  border-radius: 999px;
  background: rgba(167,139,250,.15);
  border: 1px solid var(--stroke-strong);
  color: var(--accent-mid);
  text-decoration: none;
  font-size: .78rem;
  font-family: var(--font-body);
  font-weight: 500;
  white-space: nowrap;
  min-height: 34px;
  display: flex; align-items: center;
  transition: background .15s;
  -webkit-tap-highlight-color: transparent;
}
.btn-dl:hover { background: rgba(167,139,250,.25); }

.hidden { display: none !important; }

/* 键盘焦点（主要交互控件） */
.tab:focus-visible,
.btn-menu:focus-visible,
.btn-search-icon:focus-visible,
.album-filter button:focus-visible,
.search:focus-visible,
.track-list a:focus-visible {
  outline: 2px solid var(--accent-mid);
  outline-offset: 2px;
}

/* ── 遮罩层（移动端侧边栏；透明但保留点击检测） ── */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: var(--header-h);
  bottom: var(--player-h);
  right: 0;
  background: transparent;
  z-index: 25;
}

/* ──────── 响应式断点 ──────── */

/* 平板（1024px 以下）：收窄侧栏；保留品牌文案以利识别（仅极窄屏再隐藏，见 ≤768） */
@media (max-width: 1024px) {
  :root { --sidebar-w: 216px; }
  .player-vol { flex: 0 0 90px; }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .main {
    padding: 20px 24px;
  }
}

/* ────── 手机 / 小平板（≤768px）────── */
@media (max-width: 768px) {
  :root {
    --sidebar-w: 288px;
    /* 顶栏细进度条 + 时间行 + 封面与控制行（.player-now） */
    --player-h: 92px;
  }

  /* ── 顶栏 ── */
  .top {
    gap: 8px;
    padding-top: env(safe-area-inset-top, 0px);
    padding-right: max(8px, env(safe-area-inset-right, 0px));
    padding-bottom: 0;
    padding-left: max(8px, env(safe-area-inset-left, 0px));
  }
  .btn-menu { display: flex; }
  .brand-text { display: block; }

  /* 搜索框换为图标，图标展开后再显示输入框；图标贴右上角（靠 flex 余量顶到右缘） */
  .search-wrap { display: none; }
  .btn-search-icon {
    display: flex;
    margin-left: auto;
  }

  /* 搜索展开态：顶栏加 search-active 类后显示搜索框、隐藏图标 */
  .top.search-active .search-wrap {
    display: flex;
    flex: 1;
    min-width: 0;
  }
  .top.search-active .btn-search-icon { display: none; }
  .top.search-active .tabs { display: none; }

  /* ── 侧边栏抽屉 ── */
  .shell { grid-template-columns: 1fr; }

  .sidebar {
    position: fixed;
    top: var(--header-h);
    left: 0;
    bottom: var(--player-h);
    width: var(--sidebar-w);
    z-index: 28;
    transform: translateX(-100%);
    transition: transform .25s ease;
    height: auto;
    background: rgba(13,19,36,.98);
    border-right: 1px solid var(--stroke-strong);
    backdrop-filter: none;
  }

  .sidebar.open { transform: translateX(0); }

  /* 遮罩只盖主内容（侧边栏右侧） */
  .sidebar-overlay.open {
    display: block;
    left: var(--sidebar-w);  /* 关键：从侧边栏右边缘开始 */
  }

  /* ── 曲目列表：整行可点击（与桌面一致，已无单独「播放」按钮） ── */
  .track-list li:active { background: rgba(167,139,250,.1); }

  .track-actions a {
    padding: 6px 10px;
    font-size: 0;        /* 隐藏文字 */
    min-width: 34px;
    justify-content: center;
  }
  .track-actions a::before { content: "↓"; font-size: .85rem; }

  /* ── 播放器：上进度下主控（DOM 顺序即布局顺序，无需 order） ── */
  .player {
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 0;
    padding: 0;
    padding-bottom: max(0px, env(safe-area-inset-bottom, 0px));
  }

  /* 勿 flex:1 撑满剩余高度，否则单行会在区域内垂直居中，时间行与封面行间距过大 */
  .player-now {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    flex: 0 0 auto;
    min-height: 0;
    width: 100%;
    padding: 4px 12px 0;
    gap: 10px;
    box-sizing: border-box;
    order: unset;
  }

  /* 进度条与时间行全宽；时间行与 .player-now 共用 12px 水平内边距 */
  .player-progress {
    flex: 0 0 auto;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    flex-direction: column;
    align-items: stretch;
    align-self: stretch;
    gap: 3px;
    padding: 5px 0 2px;
    margin: 0;
    height: auto;
    overflow: visible;
    cursor: pointer;
    box-sizing: border-box;
    order: unset;
  }

  .player-progress input[type="range"] {
    flex: 0 0 auto;
    display: block;
    width: 100%;
    max-width: none;
    height: 4px;
    border-radius: 0;
    background: linear-gradient(
      to right,
      var(--accent-from) 0%,
      var(--accent-from) var(--fill, 0%),
      rgba(148,163,184,.2) var(--fill, 0%),
      rgba(148,163,184,.2) 100%
    );
  }

  /* 正常时不显示拖拽点，touch 时出现 */
  .player-progress input[type="range"]::-webkit-slider-thumb {
    width: 0;
    height: 0;
    background: var(--accent-from);
    box-shadow: none;
    transition: width .12s, height .12s;
  }
  .player-progress input[type="range"]:active::-webkit-slider-thumb {
    width: 14px;
    height: 14px;
    box-shadow: 0 0 8px rgba(167,139,250,.6);
  }

  .player-progress .time-combined {
    display: none;
  }

  .player-progress-mobile-times {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
    padding: 0 12px;
    margin: 0;
    flex-shrink: 0;
  }

  .time-current,
  .time-total {
    font-size: .68rem;
    color: var(--text-dim);
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
  }

  .player-art {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    flex-shrink: 0;
    margin: 0;
    align-self: center;
  }

  .player-meta {
    flex: 1;
    min-width: 0;
    align-self: center;
  }

  .player-controls {
    gap: 6px;
    margin: 0;
    flex-shrink: 0;
    align-self: center;
  }

  .btn-icon { width: 36px; height: 36px; font-size: .9rem; }
  .btn-icon.primary { width: 44px; height: 44px; font-size: 1rem; }

  .player-vol { display: none; }
  .btn-dl { display: none; }

  /* ── 专辑网格 ── */
  .main { padding: 14px 12px; }
  .album-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 10px; }
}

/* ── 极窄手机（≤380px） ── */
@media (max-width: 380px) {
  .logo-img { width: 26px; height: 26px; border-radius: 8px; }
  .album-grid { grid-template-columns: repeat(2, 1fr); }
}