.chat-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: #f5f7fa;
}
.header {
  display: flex;
  justify-content: space-between;
  padding: 16rpx 24rpx;
  background: #fff;
  border-bottom: 1rpx solid #eee;
}
.status {
  font-size: 28rpx;
}
.online { color: #07c160; }
.offline { color: #e64340; }
.user { font-size: 28rpx; color: #666; }

.sidebar {
  display: flex;
  flex-direction: row;
  flex: 1;
  overflow: hidden;
}
.tab-bar {
  width: 160rpx;
  background: #fff;
  border-right: 1rpx solid #eee;
}
.tab {
  padding: 24rpx 0;
  text-align: center;
  font-size: 28rpx;
  color: #666;
  border-bottom: 1rpx solid #f0f0f0;
}
.tab.active {
  color: #1989fa;
  background: #eef5ff;
}
.list {
  flex: 1;
  padding: 16rpx;
}
.item {
  padding: 20rpx;
  background: #fff;
  border-radius: 8rpx;
  margin-bottom: 16rpx;
}
.item-title {
  font-size: 30rpx;
  font-weight: 500;
  color: #333;
}
.item-meta {
  font-size: 24rpx;
  color: #999;
  margin-top: 8rpx;
}
.empty {
  text-align: center;
  color: #999;
  padding: 40rpx;
}

.chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.chat-header {
  padding: 20rpx;
  background: #fff;
  text-align: center;
  font-size: 30rpx;
  border-bottom: 1rpx solid #eee;
}
.message-list {
  flex: 1;
  padding: 20rpx;
}
.msg-row {
  display: flex;
  margin-bottom: 20rpx;
}
.msg-row.self {
  justify-content: flex-end;
}
.msg-row.other {
  justify-content: flex-start;
}
.msg-bubble {
  max-width: 70%;
  padding: 16rpx 20rpx;
  border-radius: 12rpx;
  background: #fff;
}
.msg-row.self .msg-bubble {
  background: #95ec69;
}
.msg-sender {
  font-size: 22rpx;
  color: #999;
  margin-bottom: 4rpx;
}
.msg-content {
  font-size: 30rpx;
  color: #333;
  word-break: break-all;
}
.msg-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 8rpx;
}
.tag {
  font-size: 20rpx;
  color: #1989fa;
}
.time {
  font-size: 20rpx;
  color: #999;
}

.input-area {
  display: flex;
  padding: 16rpx;
  background: #fff;
  border-top: 1rpx solid #eee;
}
.msg-input {
  flex: 1;
  height: 72rpx;
  border: 1rpx solid #ddd;
  border-radius: 8rpx;
  padding: 0 16rpx;
  font-size: 30rpx;
}
.send-btn {
  margin-left: 16rpx;
}
.empty-chat {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 32rpx;
}