.sf-player {
  background: #f4f4f4;
  border-radius: 8px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 100%;
  margin: 1rem 0;
}
.sf-play {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sf-progress {
  flex: 1;
  height: 6px;
  background: #ddd;
  border-radius: 3px;
  cursor: pointer;
  position: relative;
}
.sf-progress-bar {
  height: 100%;
  background: #333;
  border-radius: 3px;
  width: 0;
  transition: width 0.1s linear;
}
.sf-time {
  font-size: 0.8rem;
  color: #666;
  white-space: nowrap;
  min-width: 80px;
}
.sf-speed {
  background: #e0e0e0;
  border: none;
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 0.75rem;
  cursor: pointer;
  font-weight: 600;
}
@media screen and (max-width: 30em) {
  .sf-player { flex-wrap: wrap; gap: 8px; }
  .sf-time { order: 4; width: 100%; text-align: center; }
}