/* ===== 导航栏「无损音乐」按钮 ===== */
/* 按钮沿用 .music-btn span 的 scoped 样式（JS 中已打 data-v-ebb79c36），此处只补交互态 */
.nav-iframe-trigger {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  cursor: pointer;
}
.nav-iframe-trigger:hover {
  border-color: #fff;
  color: #fff;
}
.nav-iframe-trigger.active {
  border-color: #d43c33;
  color: #fff;
}

/* 内嵌 iframe 面板：悬在内容区上方，介于导航栏与播放条之间 */
.nav-iframe-panel {
  position: fixed;
  z-index: 900;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  overflow: hidden;
  background: #1f1f1f;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  -webkit-box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}
.nav-iframe-panel .nav-iframe-head {
  -webkit-box-flex: 0;
  -ms-flex: 0 0 auto;
  flex: 0 0 auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  height: 40px;
  padding: 0 12px;
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  font-size: 14px;
}
.nav-iframe-panel .nav-iframe-close {
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
  padding: 0 6px;
  color: hsla(0, 0%, 100%, 0.7);
  -webkit-transition: color 0.2s;
  transition: color 0.2s;
}
.nav-iframe-panel .nav-iframe-close:hover {
  color: #fff;
}
.nav-iframe-panel iframe {
  -webkit-box-flex: 1;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  width: 100%;
  border: 0;
  background: #fff;
}

/* 小屏适配 */
@media (max-width: 768px) {
  .nav-iframe-panel {
    border-radius: 0;
  }
}