:root {
  --bg: #f3f5f9;
  --card: #ffffff;
  --ink: #1f2733;
  --muted: #6b7686;
  --line: #e3e8ef;
  --brand: #e8472b;
  --brand-d: #c5371f;
  --accent: #2b7de8;
  --ok: #1f9d55;
  --dot: #c0392b;
  --shadow: 0 6px 20px rgba(20, 30, 50, .08);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
  line-height: 1.5;
}

.topbar {
  background: linear-gradient(135deg, #ff6a4d, #e8472b);
  color: #fff;
  padding: 22px 18px 26px;
  text-align: center;
  box-shadow: var(--shadow);
}
.topbar h1 { margin: 0; font-size: 22px; letter-spacing: 1px; }
.topbar .sub { margin: 6px 0 0; font-size: 13px; opacity: .92; }

.wrap { max-width: 720px; margin: 0 auto; padding: 16px 14px 40px; }

.card {
  background: var(--card);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 12px; font-size: 16px; }

/* 录音区 */
.rec-area { display: flex; align-items: center; gap: 16px; }
.rec-btn {
  width: 92px; height: 92px; border-radius: 50%;
  border: none; cursor: pointer; flex: 0 0 auto;
  background: radial-gradient(circle at 35% 30%, #ff8a72, #e8472b);
  box-shadow: 0 8px 20px rgba(232, 71, 43, .4);
  color: #fff; font-size: 38px;
  display: flex; align-items: center; justify-content: center;
  transition: transform .12s ease, box-shadow .12s ease;
}
.rec-btn:active { transform: scale(.95); }
.rec-btn.recording {
  background: radial-gradient(circle at 35% 30%, #555, #222);
  box-shadow: 0 8px 20px rgba(0, 0, 0, .35);
  animation: pulse 1.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(232, 71, 43, .5); }
  70% { box-shadow: 0 0 0 16px rgba(232, 71, 43, 0); }
  100% { box-shadow: 0 0 0 0 rgba(232, 71, 43, 0); }
}
.rec-meta { flex: 1 1 auto; min-width: 0; }
.rec-state { font-size: 15px; font-weight: 600; }
.level {
  height: 10px; background: #eef1f6; border-radius: 6px;
  overflow: hidden; margin: 8px 0 6px;
}
.level-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, #2bd07a, #e8c12b, #e8472b);
  transition: width .06s linear;
}
.rec-elapsed { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }

.status { margin-top: 12px; font-size: 13px; color: var(--muted); min-height: 18px; }
.status.busy { color: var(--accent); }
.status.ok { color: var(--ok); }
.status.err { color: var(--brand-d); }

/* 按钮 */
.row { display: flex; gap: 10px; margin-top: 12px; }
.row.wrap { flex-wrap: wrap; }
.btn {
  appearance: none; border: 1px solid var(--line); background: #fff;
  color: var(--ink); border-radius: 10px; padding: 10px 14px;
  font-size: 14px; cursor: pointer; flex: 1 1 auto;
  transition: background .12s, border-color .12s;
}
.btn:hover { background: #f7f9fc; }
.btn:active { background: #eef2f8; }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.primary:hover { background: #1f6fd0; }
.btn.ghost { color: var(--muted); }
.btn.full { width: 100%; margin-top: 12px; }

/* 设置网格 */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid label { display: flex; flex-direction: column; font-size: 13px; color: var(--muted); gap: 6px; }
.grid input, .grid select {
  font-size: 15px; padding: 9px 10px; border: 1px solid var(--line);
  border-radius: 9px; color: var(--ink); background: #fff;
}

/* 结果 */
.meta { font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.score {
  background: #fbfcfe; border: 1px solid var(--line); border-radius: 10px;
  padding: 16px 12px; overflow-x: auto; min-height: 64px;
  display: flex; flex-wrap: wrap; align-items: flex-end; gap: 2px;
  font-family: "Songti SC", "SimSun", serif;
}
.score:empty::before { content: "（录音或上传音频后在此显示简谱）"; color: var(--muted); font-family: system-ui; }

.jp-measure { display: inline-flex; align-items: flex-end; gap: 3px; padding: 0 10px; border-right: 2px solid #c7ced8; }
.jp-measure:last-child { border-right: none; }
.jp-sym { display: inline-flex; align-items: flex-start; }
.jp-note, .jp-rest { display: inline-flex; align-items: flex-start; }
.jp-col { display: flex; flex-direction: column; align-items: center; line-height: 1; }
.jp-above, .jp-below { font-size: 10px; height: 10px; color: var(--dot); }
.jp-num { font-size: 28px; font-weight: 700; color: var(--ink); }
.jp-note.u1 .jp-num { border-bottom: 2px solid var(--ink); }
.jp-note.u2 .jp-num { border-bottom: 4px double var(--ink); }
.jp-ext { font-size: 20px; align-self: center; color: var(--ink); white-space: pre; }

.score-text {
  margin: 12px 0 0; padding: 12px; background: #0f1620; color: #d6f5e0;
  border-radius: 10px; font-size: 15px; line-height: 1.7;
  overflow-x: auto; white-space: pre-wrap; word-break: break-all; font-family: "SFMono-Regular", Consolas, monospace;
}

/* 帮助 */
.help ul { margin: 0; padding-left: 18px; font-size: 13px; color: var(--muted); }
.help li { margin: 6px 0; }
.help .note { font-size: 12px; color: var(--muted); margin-top: 10px; }

/* 编辑模式 */
.score.editable .jp-sym { cursor: pointer; border-radius: 8px; transition: background .12s; }
.score.editable .jp-sym:hover { background: #fff3e8; }
.score.editable .jp-sym.selected { background: #ffe2d6; outline: 2px solid var(--brand); }
.score.editable .jp-sym.dim { opacity: .35; }

.edit-panel {
  margin-top: 14px; padding: 14px; background: #fff8f4;
  border: 1px solid #ffd9c7; border-radius: 12px;
}
.edit-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.edit-title { font-size: 14px; font-weight: 600; }
.edit-title b { color: var(--brand); }
.edit-close {
  border: 1px solid var(--brand); background: #fff; color: var(--brand);
  border-radius: 9px; padding: 6px 14px; font-size: 13px; cursor: pointer;
}
.edit-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.edit-label { font-size: 13px; color: var(--muted); width: 36px; flex: 0 0 auto; }
.seg { display: inline-flex; gap: 4px; flex-wrap: wrap; }
.seg button, .seg-btn, .mini {
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  border-radius: 8px; padding: 7px 11px; font-size: 14px; cursor: pointer;
  min-width: 38px; transition: background .1s, border-color .1s, color .1s;
}
.seg button.active { background: var(--brand); border-color: var(--brand); color: #fff; }
.seg-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.mini { font-size: 13px; padding: 7px 10px; }
.mini.danger { color: var(--brand-d); border-color: #f0c0b4; }
.edit-actions { border-top: 1px dashed var(--line); padding-top: 10px; margin-bottom: 0; }

@media (max-width: 520px) {
  .grid { grid-template-columns: 1fr 1fr; }
  .rec-btn { width: 80px; height: 80px; font-size: 34px; }
  .wrap { padding: 12px 10px 36px; }
  .btn { padding: 11px 8px; font-size: 13px; }
  .seg button, .seg-btn, .mini { padding: 8px 9px; font-size: 13px; min-width: 34px; }
}