html {
  font-size: 100px;
}
body {
  margin: 0;
  padding: 0 0.2rem 0.2rem;
}
div {
  font-size: 0.16rem;
}
.list-item {
  border-bottom: 1px solid #f2f3f8;
}
.title-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.16rem 0;
  position: relative;
}
.title-box .tit {
  line-height: 0.2rem;
  font-size: 0.14rem;
  width: calc(100% - 0.12rem);
  color: #0c0d0e;
}
.title-box .title-click {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
}
.title-box .title-click:active {
  box-shadow: 0 0 15px #f2f3f8;
}
.content-box {
  color: #737a87;
  height: 0;
  overflow: hidden;
  transition: all 0.3s;
}
.content-box.show {
  margin-bottom: 0.16rem;
}
.content-box .txt {
  font-size: 0.12rem;
  line-height: 0.2rem;
}
.drop-btn {
  background-size: 0.12rem !important;
  width: 0.12rem;
  height: 0.12rem;
  padding: 0.04rem;
  transition: all 0.3s;
}
.drop-btn.shrink {
  transform: rotate(180deg);
}