:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --line: #e3e6ea;
  --text: #1f2329;
  --muted: #7a8189;
  --primary: #1aad7a;
  --primary-dark: #148a62;
  --danger: #d54941;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.6;
}
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; background: var(--card); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.topbar h1 { font-size: 18px; font-weight: 700; }
.badge { font-size: 12px; color: var(--muted); border: 1px solid var(--line); border-radius: 20px; padding: 3px 10px; }
.badge.on { color: var(--primary); border-color: var(--primary); }
.tabs { display: flex; gap: 4px; padding: 10px 20px 0; background: var(--card); border-bottom: 1px solid var(--line); }
.tab {
  border: none; background: none; padding: 10px 16px; font-size: 14px; cursor: pointer;
  color: var(--muted); border-bottom: 2px solid transparent;
}
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
main { max-width: 860px; margin: 0 auto; padding: 20px; }
.panel { display: none; }
.panel.active { display: block; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
input[type=text], textarea {
  flex: 1; min-width: 220px; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 8px; font-size: 14px; background: var(--card); outline: none;
}
input[type=text]:focus, textarea:focus { border-color: var(--primary); }
textarea { width: 100%; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; margin-bottom: 10px; }
.btn {
  display: inline-block; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--card); color: var(--text); font-size: 14px; cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); color: #fff; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.pl-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.pl-btn.active:hover { color: #fff; }
.hint { color: var(--muted); font-size: 13px; margin: 8px 0; }
.hint.error { color: var(--danger); }
.chk { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 5px; }
.list { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px;
}
.item .meta { overflow: hidden; }
.item .name { font-weight: 600; }
.item .sub { color: var(--muted); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item .ops { display: flex; gap: 8px; flex-shrink: 0; }
.item .ops .btn { padding: 6px 12px; font-size: 13px; }
/* 歌曲名旁的平台标签 */
.name-row { display: flex; align-items: center; gap: 8px; }
.pl-tag { font-size: 11px; padding: 1px 8px; border-radius: 10px; flex-shrink: 0; font-weight: 600; }
.pl-tag.netease { color: #c20c0c; border: 1px solid #c20c0c; background: rgba(194, 12, 12, .06); }
.pl-tag.qq { color: #31c27c; border: 1px solid #31c27c; background: rgba(49, 194, 124, .08); }
/* 歌曲条目下方内联展开的歌词区 */
.item-lrc {
  width: 100%; margin-top: 10px; padding: 12px;
  background: var(--bg); border: 1px dashed var(--line); border-radius: 8px;
}
.item-lrc .item-lrc-title { font-weight: 600; font-size: 14px; min-width: 0; word-break: break-all; }
.item-lrc pre {
  margin-top: 8px; max-height: 260px; overflow: auto;
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12.5px;
  white-space: pre-wrap; word-break: break-all;
}
.lyric-box { margin-top: 16px; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.lyric-box h3 { font-size: 16px; }
.lyric-box pre { margin-top: 10px; max-height: 420px; overflow: auto; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; white-space: pre-wrap; word-break: break-all; }
.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 24px 0 30px; }
@media (max-width: 600px) {
  main { padding: 12px; }
  .tabs { padding: 8px 10px 0; overflow-x: auto; }
  .tab { padding: 8px 12px; font-size: 13px; }
  .item { flex-direction: column; align-items: flex-start; }
  .item .ops { width: 100%; justify-content: flex-end; }
}
.sep { border: 0; border-top: 1px solid var(--line); margin: 18px 0; }
#qrcode { margin: 12px 0; }
#qrcode img, #qrcode canvas { display: block; border: 1px solid var(--line); border-radius: 8px; }