.bannerWarp {
  box-sizing: border-box;
  width: 100%;
  height: 420px;
  background-image: url(../img/banner/case-banner.png);
  background-size: cover;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.banner-title {
  font-size: 45px;
  font-family: PingFang SC;
  font-weight: 600;
  color: #ffffff;
}
.banner-subtitle {
  margin-top: 53px;
  font-size: 26px;
  font-family: PingFang SC;
  font-weight: 400;
  color: #ffffff;
}
.banner-bottom {
  margin-top: 52px;
}
.banner-btn {
  width: 150px;
  height: 50px;
}
.case-list {
  padding: 100px 0;
}
.case-container {
  height: 724px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  align-content: space-between;
}
.case-container li {
  width: 306px;
  height: 339px;
  background: #ffffff;
  border: 1px solid #e1e1ed;
  border-radius: 10px;
  overflow: hidden;
  box-sizing: content-box;
}
.case-title {
  padding-left: 20px;
  margin-top: 24px;
  font-size: 18px;
  font-family: PingFang SC;
  font-weight: 500;
  color: #1a2d56;
}
.case-description {
  width: 306px;
  height: 72px;
  margin-top: 16px;
  padding: 0 20px;
  font-size: 14px;
  font-family: PingFang SC;
  font-weight: 400;
  color: #707c9b;
  line-height: 18px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}
.case-container li:hover {
  transform: translateY(-3px);
  box-shadow: 0px 0px 16px 2px rgba(85, 96, 122, 0.15);
}