@media screen and (max-width: 960px) {
  body {
    background: url('../images/mb-index-bg.png') no-repeat top -1.34rem left / 100vw #FBFBFB;
  }
  .header {
    position: relative;
  }
  .header .header-bg {
    display: block;
    height: 0.43rem;
    background: url('../images/mb-index-bg.png') no-repeat top -1.34rem left / 100vw rgba(0, 0, 0, 0.3);
    filter: blur(1px);
    margin-top: -0.01rem;
  }
  .header .container {
    position: absolute;
    left: 0;
    bottom: 0;
    top: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.1);
  }
  .header .container .mb-select-btn {
    background-image: url('../images/mb-menu-btn-bg-1.png');
  }
}