* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --green: #6cbf84;
  --green-dark: #4e9e67;
  --bg: #f6f7f6;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #8a94a0;
  --border: #e6e8ea;
  --red: #ef4444;
}
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); padding-bottom: 80px;
}
header {
  background: var(--green); color: #fff; padding: 18px 20px;
}
.brand { display: flex; align-items: center; gap: 12px; max-width: 900px; margin: 0 auto; }
.logo { font-size: 30px; }
header h1 { font-size: 22px; }
.sub { font-size: 12px; opacity: .85; }
main { max-width: 900px; margin: 18px auto; padding: 0 16px; display: flex; flex-direction: column; gap: 16px; }
.card { background: var(--card); border-radius: 14px; padding: 18px; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.card h2 { font-size: 16px; margin-bottom: 12px; }
.row-between { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.inline { display: flex; gap: 8px; }
.count { color: var(--muted); font-size: 13px; font-weight: normal; }

.dropzone {
  border: 2px dashed var(--green); border-radius: 12px; padding: 28px; text-align: center;
  cursor: pointer; color: var(--green-dark); transition: background .15s;
}
.dropzone.drag { background: #edf7f0; }
.dropzone .hint { font-size: 12px; color: var(--muted); margin-top: 6px; }

.upload-list { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; }
.upload-item { font-size: 13px; display: flex; justify-content: space-between; padding: 6px 10px; background: var(--bg); border-radius: 8px; }
.upload-item.ok { color: var(--green-dark); }
.upload-item.err { color: var(--red); }

input, select, button {
  font-size: 14px; padding: 8px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: #fff; color: var(--text); outline: none;
}
button { background: var(--green); color: #fff; border: none; cursor: pointer; }
button:hover { background: var(--green-dark); }
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
button.danger { background: transparent; color: var(--red); border: 1px solid #f3c6c6; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: flex; align-items: center; gap: 6px; background: var(--bg); border-radius: 20px; padding: 6px 12px; font-size: 13px; }
.chip .cnt { color: var(--muted); font-size: 11px; }
.chip .x { cursor: pointer; color: var(--muted); }
.chip .x:hover { color: var(--red); }
.chip .edit { cursor: pointer; color: var(--muted); }

.track-list { display: flex; flex-direction: column; gap: 8px; }
.track { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; }
.track .play { cursor: pointer; font-size: 18px; background: none; padding: 0; color: var(--green-dark); }
.track .title { flex: 1; font-size: 14px; word-break: break-all; }
.track .meta { font-size: 11px; color: var(--muted); }
.track select { padding: 5px 8px; font-size: 12px; }
.track .acts { display: flex; gap: 6px; }
.track .acts button { padding: 5px 10px; font-size: 12px; }
.empty { text-align: center; color: var(--muted); padding: 20px; font-size: 14px; }