miniProgram/custom-tab-bar/index.wxss

.m-tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 62px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
}

.m-tab-list {
  display: flex;
  width: 100%;
  flex-direction: row;
}

.bg-tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  flex-direction: column;
  z-index: -1;
  display: flex;
}

.bg-bottom {
  background: white;
  padding-bottom: env(safe-area-inset-bottom);

}

.m-tab-box {
  display: flex;
  padding-top: 26px;
  padding-bottom: env(safe-area-inset-bottom);
  flex: 1;
}

.m-tab-box-l {
  padding-right: 40px;
}


.m-tab-box-r {
  padding-left: 40px;
}

/* .tab-bar-border {
  background-color: rgba(0, 0, 0, 0.33);
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 1px;
  transform: scaleY(0.5);
} */

.m-tab-bar-item {
  flex: 1;
  text-align: center;
  display: flex;
  padding: 13px 0 10px 0;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.m-tab-bar-item image {
  width: 22px;
  height: 22px;
  display: block;
}

.m-tab-bar-item view {
  font-size: 10px;
}

.scan-code-btn-view {
  display: flex;
  flex-direction: column;
  position: fixed;
  left: calc(50vw - 38px);
  bottom: 100px;
  padding-bottom: env(safe-area-inset-bottom);
}

.scan-code-btn {
  width: 80px;
  height: 80px;
  position: fixed;
}