@media (max-width: 980px) {
  html.support-chat-open,
  html.support-chat-open body {
    overflow: hidden;
    height: 100%;
    overscroll-behavior: none;
  }
  html.support-chat-open .support-chat-panel {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    max-height: 100%;
    display: flex;
    flex-direction: column;
  }
  .support-chat-body {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    display: flex;
    flex-direction: column;
    padding: .55rem .7rem 1rem;
    background-color: #efeae2;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cg fill='%23000000' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/svg%3E");
  }
  .support-chat-messages {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: .28rem;
    min-height: 0;
    width: 100%;
  }
  .support-chat-compose {
    flex-shrink: 0;
    z-index: 6;
    padding: .35rem .4rem .4rem;
    background: #f0f2f5;
    gap: .28rem;
  }
  html.kb-open .support-chat-compose,
  html.kb-open .mchat-compose {
    padding-bottom: .35rem;
  }
  .support-mic-btn,
  .support-send-btn {
    width: 3rem;
    height: 3rem;
    border-radius: 999px;
    background: #00a884;
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 0;
    padding: 0;
  }
  .support-mic-btn { font-size: 0; }
  .support-attach-btn {
    width: 2.4rem;
    height: 2.4rem;
    font-size: 1.35rem;
  }
  .support-ticks {
    display: block;
    text-align: right;
    font-size: .72rem;
    margin-top: .15rem;
    letter-spacing: -.12em;
    color: #62757f;
    font-weight: 700;
  }
  .support-ticks.is-read { color: #53bdeb; }
}

.mchat-msgs {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.mchat-mic,
.mchat-send {
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  background: #00a884;
  color: #fff;
}