/* ============================================
   网易云音乐客户端 — music.css
   ============================================ */

/* ===== CSS Variables ===== */
:root {
  /* 复用现有设计系统 */
  --bg: #070707;
  --panel: #0f0f10;
  --panel-2: #121215;
  --border: #1e1e22;
  --accent: #f2a8c4;
  --accent-2: #e48fb0;
  --text: #f6c6d7;
  --muted: #e2a3bb;

  /* 音乐客户端专用 */
  --sidebar-width: 220px;
  --topbar-height: 56px;
  --player-height: 72px;

  /* 网易云品牌色 */
  --ncm-red: #c62f2f;
  --ncm-bg: #0a0a0c;
  --ncm-hover: rgba(255,255,255,0.04);
  --ncm-active: rgba(255,255,255,0.08);
  --ncm-text2: #8c8c99;

  /* 播放器 */
  --player-bg: rgba(15,15,18,0.94);
  --progress-bg: #2a2a30;
  --progress-fill: var(--accent);

  /* 玻璃态 */
  --glass-border: rgba(255,255,255,0.08);
  --glass-blur: 16px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ===== Background ===== */
.app-bg {
  position: fixed; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(242,168,196,0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(242,168,196,0.04) 0%, transparent 50%),
    var(--ncm-bg);
  pointer-events: none;
}

/* ===== 4-Panel Grid Layout ===== */
.music-app {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--topbar-height) 1fr var(--player-height);
  grid-template-areas:
    "sidebar topbar"
    "sidebar main"
    "player player";
  height: 100vh; width: 100vw;
  position: relative; z-index: 1;
}

/* ========================================
   SIDEBAR
   ======================================== */
.sidebar {
  grid-area: sidebar;
  background: rgba(10,10,14,0.95);
  border-right: 1px solid var(--glass-border);
  display: flex; flex-direction: column;
  overflow: hidden;
  user-select: none;
}

.sidebar-logo {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 20px 14px;
  font-size: 16px; font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.5px;
}
.sidebar-logo-img { width: 28px; height: 28px; border-radius: 6px; }

.sidebar-nav {
  display: flex; flex-direction: column;
  padding: 0 10px; gap: 2px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px;
  color: var(--muted); text-decoration: none;
  font-size: 14px; cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.nav-item:hover { background: var(--ncm-hover); color: var(--text); }
.nav-item.active { background: var(--ncm-active); color: var(--accent); font-weight: 600; }
.nav-icon { font-size: 16px; width: 20px; text-align: center; }

.sidebar-divider {
  height: 1px; background: var(--glass-border);
  margin: 8px 16px;
}

.sidebar-section { flex: 1; overflow: hidden; display: flex; flex-direction: column; }
.sidebar-section-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 20px 6px;
  font-size: 11px; color: var(--ncm-text2);
  text-transform: uppercase; letter-spacing: 1px;
}
.playlist-count { font-size: 10px; }

.playlist-sidebar-list {
  flex: 1; overflow-y: auto; padding: 0 10px;
}
.playlist-sidebar-list::-webkit-scrollbar { width: 3px; }
.playlist-sidebar-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

.playlist-sidebar-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: 6px;
  color: var(--muted); font-size: 13px;
  cursor: pointer; transition: all 0.15s;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.playlist-sidebar-item:hover { background: var(--ncm-hover); color: var(--text); }
.playlist-sidebar-item.active { color: var(--accent); font-weight: 600; }
.playlist-sidebar-item .pl-icon { font-size: 14px; flex-shrink: 0; }

.sidebar-hint { color: var(--ncm-text2); font-size: 12px; text-align: center; padding: 20px; }

.sidebar-user { padding: 12px; border-top: 1px solid var(--glass-border); }
.sidebar-user-logged { display: flex; align-items: center; gap: 10px; padding: 6px 8px; }
.sidebar-user-avatar { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; }
.sidebar-user-name { font-size: 13px; color: var(--text); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sidebar-logout-btn {
  background: none; border: none; color: var(--ncm-text2);
  font-size: 11px; cursor: pointer; padding: 2px 6px;
}
.sidebar-logout-btn:hover { color: var(--ncm-red); }

.sidebar-login-btn {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  width: 100%; padding: 10px;
  background: var(--ncm-red); color: #fff;
  border: none; border-radius: 8px;
  font-size: 14px; cursor: pointer;
  transition: opacity 0.2s;
}
.sidebar-login-btn:hover { opacity: 0.85; }

/* ========================================
   TOP BAR
   ======================================== */
.topbar {
  grid-area: topbar;
  display: flex; align-items: center; gap: 16px;
  padding: 0 24px;
  background: rgba(10,10,14,0.9);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  z-index: 20;
}

.topbar-back {
  background: none; border: none; color: var(--muted);
  font-size: 20px; cursor: pointer; padding: 4px 8px; border-radius: 6px;
  transition: all 0.15s; flex-shrink: 0;
}
.topbar-back:hover { color: var(--text); background: var(--ncm-hover); }

.search-wrapper {
  position: relative; flex: 1; max-width: 480px;
}
.search-icon {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  font-size: 14px; pointer-events: none; opacity: 0.5;
}
.search-input {
  width: 100%; padding: 9px 36px 9px 36px;
  background: rgba(255,255,255,0.06); border: 1px solid transparent;
  border-radius: 20px; color: var(--text); font-size: 13px;
  outline: none; transition: all 0.2s;
}
.search-input:focus { background: rgba(20,20,26,0.9); border-color: rgba(255,255,255,0.15); }
.search-input::placeholder { color: var(--ncm-text2); }

.search-clear {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: var(--ncm-text2);
  cursor: pointer; font-size: 14px; padding: 4px;
}

.search-suggestions {
  display: none; position: absolute; top: calc(100% + 6px);
  left: 0; right: 0;
  background: rgba(20,20,26,0.98); border: 1px solid var(--glass-border);
  border-radius: 10px; overflow: hidden; z-index: 50;
  backdrop-filter: blur(20px);
}
.search-suggestions.active { display: block; }

.suggestion-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px; cursor: pointer; font-size: 13px;
  transition: background 0.1s;
}
.suggestion-item:hover { background: var(--ncm-hover); }
.suggestion-item .sug-icon { opacity: 0.5; font-size: 12px; }

.topbar-right { flex: 1; }

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
  grid-area: main;
  overflow-y: auto; overflow-x: hidden;
  padding: 24px;
  scroll-behavior: smooth;
}
.main-content::-webkit-scrollbar { width: 6px; }
.main-content::-webkit-scrollbar-track { background: transparent; }
.main-content::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
.main-content::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

.page-view { display: none; }
.page-view.active { display: block; }

/* Content sections */
.content-section { margin-bottom: 36px; }
.section-title {
  font-size: 18px; font-weight: 700; color: var(--text);
  margin-bottom: 16px; display: flex; align-items: center; gap: 8px;
}

/* Playlist horizontal scroll */
.playlist-scroll {
  display: flex; gap: 16px; overflow-x: auto; padding-bottom: 8px;
  scroll-snap-type: x mandatory;
}
.playlist-scroll::-webkit-scrollbar { height: 4px; }
.playlist-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.playlist-card {
  flex-shrink: 0; width: 160px;
  cursor: pointer; scroll-snap-align: start;
  transition: transform 0.2s;
}
.playlist-card:hover { transform: translateY(-4px); }
.playlist-card-cover {
  width: 160px; height: 160px; border-radius: 10px;
  object-fit: cover; background: var(--panel-2);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.playlist-card-title {
  margin-top: 8px; font-size: 13px; color: var(--text);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden; line-height: 1.3;
}
.playlist-card-count {
  font-size: 11px; color: var(--ncm-text2); margin-top: 2px;
}

/* Song simple list (new songs) */
.song-simple-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: 8px; cursor: pointer;
  transition: background 0.15s;
}
.song-simple-item:hover { background: var(--ncm-hover); }
.song-simple-cover {
  width: 48px; height: 48px; border-radius: 6px; object-fit: cover;
  background: var(--panel-2); flex-shrink: 0;
}
.song-simple-info { flex: 1; min-width: 0; }
.song-simple-name { font-size: 14px; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.song-simple-artist { font-size: 12px; color: var(--ncm-text2); margin-top: 2px; }
.song-simple-idx { color: var(--ncm-text2); font-size: 13px; width: 24px; text-align: center; flex-shrink: 0; }

/* ===== Search ===== */
.search-tabs { display: flex; gap: 0; margin-bottom: 20px; }
.search-tab {
  padding: 8px 20px; background: none; border: none;
  color: var(--ncm-text2); font-size: 14px; cursor: pointer;
  border-bottom: 2px solid transparent; transition: all 0.15s;
}
.search-tab:hover { color: var(--text); }
.search-tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

.search-result-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: 8px; cursor: pointer;
  transition: background 0.15s;
}
.search-result-item:hover { background: var(--ncm-hover); }
.search-result-idx { color: var(--ncm-text2); font-size: 14px; width: 28px; text-align: center; flex-shrink: 0; }
.search-result-cover { width: 44px; height: 44px; border-radius: 6px; object-fit: cover; flex-shrink: 0; background: var(--panel-2); }
.search-result-info { flex: 1; min-width: 0; }
.search-result-name { font-size: 14px; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.search-result-sub { font-size: 12px; color: var(--ncm-text2); margin-top: 2px; }

.search-playlist-item {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 12px; border-radius: 8px; cursor: pointer;
  transition: background 0.15s;
}
.search-playlist-item:hover { background: var(--ncm-hover); }
.search-playlist-cover { width: 60px; height: 60px; border-radius: 8px; object-fit: cover; flex-shrink: 0; }
.search-playlist-info { flex: 1; }

/* ===== Playlist Detail ===== */
.playlist-detail-header {
  display: flex; gap: 24px; margin-bottom: 24px;
  flex-wrap: wrap;
}
.playlist-detail-cover {
  width: 200px; height: 200px; border-radius: 12px; object-fit: cover;
  flex-shrink: 0; box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  background: var(--panel-2);
}
.playlist-detail-info { flex: 1; min-width: 260px; display: flex; flex-direction: column; gap: 8px; }
.playlist-tag {
  display: inline-block; padding: 2px 8px; background: var(--ncm-red);
  color: #fff; font-size: 11px; border-radius: 4px; width: fit-content;
}
.playlist-detail-title { font-size: 26px; font-weight: 700; color: var(--text); line-height: 1.2; }
.playlist-detail-creator { font-size: 13px; color: var(--ncm-text2); }
.playlist-detail-desc { font-size: 12px; color: var(--ncm-text2); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.playlist-detail-actions { margin-top: 8px; display: flex; gap: 10px; }

.play-all-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 28px;
  background: var(--accent); color: #0a0a0c;
  border: none; border-radius: 24px;
  font-size: 14px; font-weight: 700; cursor: pointer;
  transition: all 0.2s;
}
.play-all-btn:hover { transform: scale(1.04); box-shadow: 0 4px 20px rgba(242,168,196,0.3); }

/* Track list */
.track-list-header {
  display: grid;
  grid-template-columns: 36px 1fr 180px 60px;
  padding: 8px 12px; font-size: 12px; color: var(--ncm-text2);
  border-bottom: 1px solid var(--glass-border);
}
.track-item {
  display: grid;
  grid-template-columns: 36px 1fr 180px 60px;
  align-items: center; padding: 10px 12px; border-radius: 8px;
  cursor: pointer; transition: background 0.1s;
}
.track-item:hover { background: var(--ncm-hover); }
.track-item.active { background: rgba(242,168,196,0.08); }
.track-item.active .track-name { color: var(--accent); }
.track-idx { color: var(--ncm-text2); font-size: 14px; text-align: center; }
.track-item.active .track-idx { color: var(--accent); }
.track-info { min-width: 0; }
.track-name { font-size: 14px; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-art { font-size: 12px; color: var(--ncm-text2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-album { font-size: 12px; color: var(--ncm-text2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-duration { font-size: 12px; color: var(--ncm-text2); text-align: center; }

/* ========================================
   LOADING / EMPTY / ERROR
   ======================================== */
.loading-placeholder { color: var(--ncm-text2); font-size: 13px; padding: 20px; text-align: center; }
.empty-hint { color: var(--ncm-text2); font-size: 14px; text-align: center; padding: 60px 20px; }
.page-loading { text-align: center; padding: 80px 20px; color: var(--ncm-text2); }
.page-error { text-align: center; padding: 80px 20px; color: var(--ncm-text2); }

.loading-spinner {
  width: 32px; height: 32px; margin: 0 auto 16px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.retry-btn {
  margin-top: 12px; padding: 8px 24px;
  background: var(--panel-2); color: var(--accent);
  border: 1px solid var(--glass-border); border-radius: 20px;
  font-size: 13px; cursor: pointer; transition: all 0.2s;
}
.retry-btn:hover { border-color: var(--accent); background: var(--ncm-active); }

/* ========================================
   BOTTOM PLAYER BAR
   ======================================== */
.player-bar {
  grid-area: player;
  display: flex; align-items: center;
  padding: 0 20px; gap: 20px;
  background: var(--player-bg);
  border-top: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  z-index: 30;
}

/* Left */
.player-left {
  display: flex; align-items: center; gap: 10px;
  width: 240px; flex-shrink: 0;
}
.player-cover-wrap { flex-shrink: 0; }
.player-cover {
  width: 48px; height: 48px; border-radius: 8px; object-fit: cover;
  background: var(--panel-2);
}
.player-meta { min-width: 0; flex: 1; }
.player-title {
  font-size: 13px; font-weight: 600; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.player-artist {
  font-size: 11px; color: var(--ncm-text2); margin-top: 2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.player-like-btn {
  background: none; border: none; color: var(--ncm-text2);
  font-size: 18px; cursor: pointer; flex-shrink: 0; padding: 4px;
}
.player-like-btn:hover { color: var(--ncm-red); }
.player-like-btn.liked { color: var(--ncm-red); }

/* Center */
.player-center { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px; min-width: 0; }
.player-controls { display: flex; align-items: center; gap: 12px; }
.player-ctrl-btn {
  background: none; border: none; color: var(--muted);
  font-size: 16px; cursor: pointer; padding: 4px 6px; border-radius: 6px;
  transition: all 0.15s;
}
.player-ctrl-btn:hover { color: var(--text); background: var(--ncm-hover); }
.player-play-btn {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  background: var(--accent); color: #0a0a0c; border-radius: 50%;
  font-size: 14px; font-weight: 700;
}
.player-play-btn:hover { transform: scale(1.08); box-shadow: 0 0 16px rgba(242,168,196,0.3); color: #0a0a0c; background: var(--accent); }

.player-progress-row { display: flex; align-items: center; gap: 10px; width: 100%; max-width: 600px; }
.player-time {
  font-size: 10px; color: var(--ncm-text2); width: 36px;
  text-align: center; flex-shrink: 0; font-variant-numeric: tabular-nums;
}
.player-progress-wrap { flex: 1; }

/* Custom range */
.player-progress {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 5px; border-radius: 999px;
  background: var(--progress-bg); outline: none; cursor: pointer;
}
.player-progress::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent);
  border: 2px solid #fff; cursor: pointer;
  box-shadow: 0 0 8px rgba(242,168,196,0.4);
  opacity: 0; transition: opacity 0.2s;
}
.player-progress::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); border: 2px solid #fff; cursor: pointer;
}
.player-progress:hover::-webkit-slider-thumb { opacity: 1; }
.player-progress-wrap:hover .player-progress::-webkit-slider-thumb { opacity: 1; }

/* Right */
.player-right { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.player-volume-wrap { width: 90px; }

.player-volume {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 3px; border-radius: 999px;
  background: var(--progress-bg); outline: none; cursor: pointer;
}
.player-volume::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--muted); cursor: pointer;
}
.player-volume::-moz-range-thumb {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--muted); cursor: pointer;
}

/* ========================================
   MODALS
   ======================================== */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.7); z-index: 100;
  align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
}
.modal-overlay.active { display: flex; }

.modal-content {
  background: rgba(20,20,28,0.98);
  border: 1px solid var(--glass-border);
  border-radius: 16px; padding: 32px;
  text-align: center; position: relative;
  min-width: 320px; max-width: 90vw;
  backdrop-filter: blur(20px);
}
.modal-close {
  position: absolute; top: 12px; right: 12px;
  background: none; border: none; color: var(--ncm-text2);
  font-size: 20px; cursor: pointer; padding: 4px 8px;
}
.modal-close:hover { color: var(--text); }

.modal-content h3 { font-size: 18px; margin-bottom: 20px; color: var(--text); }

.qr-wrap { position: relative; width: 200px; height: 200px; margin: 0 auto 16px; }
.qr-image { width: 200px; height: 200px; border-radius: 8px; }
.qr-expired {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.85); border-radius: 8px;
  color: var(--ncm-text2); font-size: 13px;
}
.qr-hint { font-size: 12px; color: var(--ncm-text2); margin-bottom: 4px; }
.qr-status { font-size: 12px; color: var(--accent); min-height: 20px; }

/* Queue modal */
.queue-modal { width: 460px; max-height: 60vh; }
.queue-list { max-height: 400px; overflow-y: auto; text-align: left; }
.queue-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: 8px; cursor: pointer;
}
.queue-item:hover { background: var(--ncm-hover); }
.queue-item.active .queue-name { color: var(--accent); }
.queue-idx { color: var(--ncm-text2); font-size: 13px; width: 24px; text-align: center; flex-shrink: 0; }
.queue-cover { width: 36px; height: 36px; border-radius: 4px; object-fit: cover; flex-shrink: 0; }
.queue-info { flex: 1; min-width: 0; }
.queue-name { font-size: 13px; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.queue-art { font-size: 11px; color: var(--ncm-text2); }

/* ========================================
   LYRICS PANEL
   ======================================== */
.lyrics-panel {
  position: fixed; right: 0; top: 0; bottom: var(--player-height);
  width: 360px; z-index: 40;
  background: rgba(15,15,20,0.96);
  border-left: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  transform: translateX(100%); transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
  display: flex; flex-direction: column;
}
.lyrics-panel.active { transform: translateX(0); }

.lyrics-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 20px; border-bottom: 1px solid var(--glass-border);
  font-size: 15px; font-weight: 600; color: var(--text);
}
.lyrics-close {
  background: none; border: none; color: var(--ncm-text2);
  font-size: 18px; cursor: pointer; padding: 4px;
}
.lyrics-content {
  flex: 1; overflow-y: auto; padding: 20px 0;
  scroll-behavior: smooth;
}
.lyrics-content::-webkit-scrollbar { width: 3px; }
.lyrics-content::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); }

.lyrics-line {
  padding: 8px 24px; font-size: 14px; color: var(--ncm-text2);
  text-align: center; transition: all 0.3s; cursor: default;
  line-height: 1.6;
}
.lyrics-line.active {
  color: var(--accent); font-size: 16px; font-weight: 600;
  text-shadow: 0 0 8px rgba(242,168,196,0.3);
}
.lyrics-empty { color: var(--ncm-text2); text-align: center; padding: 40px; }

/* ========================================
   TOAST
   ======================================== */
.toast-container {
  position: fixed; top: 80px; left: 50%; transform: translateX(-50%);
  z-index: 200; display: flex; flex-direction: column; gap: 8px;
  pointer-events: none;
}
.toast {
  padding: 10px 24px;
  background: rgba(20,20,28,0.95); color: var(--text);
  border: 1px solid var(--glass-border); border-radius: 20px;
  font-size: 13px; pointer-events: auto;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2s forwards;
  white-space: nowrap; text-align: center;
  backdrop-filter: blur(10px);
}
@keyframes toastIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; } }

/* ========================================
   SKELETON LOADING
   ======================================== */
.skeleton {
  background: linear-gradient(90deg, var(--panel-2) 25%, rgba(255,255,255,0.05) 50%, var(--panel-2) 75%);
  background-size: 200% 100%; animation: skeletonWave 1.5s infinite;
  border-radius: 6px;
}
@keyframes skeletonWave { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ========================================
   OFFLINE BANNER
   ======================================== */
.offline-banner {
  position: fixed; top: 0; left: 0; right: 0;
  background: var(--ncm-red); color: #fff;
  text-align: center; padding: 6px; font-size: 12px;
  z-index: 300; display: none;
}
.offline-banner.show { display: block; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  :root { --sidebar-width: 0px; }
  .sidebar { display: none; }
  .music-app {
    grid-template-columns: 1fr;
    grid-template-areas:
      "topbar"
      "main"
      "player";
  }
  .topbar { padding: 0 16px; }
  .main-content { padding: 16px; }
  .player-left { width: 160px; }
  .player-cover { width: 40px; height: 40px; }
  .player-volume-wrap { display: none; }
  .player-like-btn { display: none; }
  .track-list-header { grid-template-columns: 36px 1fr 80px 50px; }
  .track-item { grid-template-columns: 36px 1fr 80px 50px; }
  .tlh-artist, .track-album { display: none; }
}

@media (max-width: 640px) {
  :root { --topbar-height: 48px; --player-height: 60px; }
  .player-bar { padding: 0 10px; gap: 8px; }
  .player-left { width: auto; }
  .player-meta { display: none; }
  .player-progress-row { gap: 4px; }
  .player-time { font-size: 9px; width: 24px; }
  .lyrics-panel { width: 100%; }
  .playlist-detail-header { flex-direction: column; align-items: center; text-align: center; }
  .playlist-detail-cover { width: 160px; height: 160px; }
  .playlist-detail-info { text-align: center; }
  .playlist-detail-actions { justify-content: center; }
  .playlist-scroll { gap: 12px; }
  .playlist-card { width: 130px; }
  .playlist-card-cover { width: 130px; height: 130px; }
}