.app-background {
  background-color: #1c1c1c;
  height: 100vh;
}
body,
.mobile-chat,
.van-sticky,
.van-nav-bar,
.van-list,
.message-list-box,
.van-cell,
.chat-box,
.van-cell-group,
.van-field {
  background-color: #1c1c1c !important;
  color: #fff !important;
}
.chat-box-wrapper {
  position: fixed;
  bottom: 0;
  width: 100%;
  background-color: #1c1c1c;
}
.icon-box .van-icon,
.mobile-chat .van-nav-bar__title .van-dropdown-menu__title,
.mobile-chat .van-nav-bar__title .van-cell__title,
.mobile-chat .van-nav-bar__right .van-icon {
  color: #fff !important;
}
.mobile-chat .van-nav-bar__title .van-dropdown-menu__title {
  margin-right: 15px;
}
.mobile-chat .van-nav-bar__title .van-cell__title {
  text-align: left;
}
.mobile-chat .chat-list-wrapper {
  position: fixed;
  top: 50px;
  bottom: 60px;
  width: 100vw;
  overflow-y: scroll;
}
.mobile-chat .van-nav-bar__right .van-icon {
  font-size: 20px;
}