ul {
  list-style: none;
}

.project-first {
  height: 728px;
}

.project-second {
  display: flex;
  flex-direction: column;
  margin-bottom: 70px;
}

.project-second-top {
  height: 68px;
  background-color: #ffffff;
  box-shadow: 0px 2px 8px 0px rgba(0, 0, 0, 0.16),
    inset 0px 1px 1px 0px rgba(255, 255, 255, 0.4)
}

.project-second-top div {
  display: flex;
  justify-content: space-between;
  width: 730px;
  line-height: 68px;
  margin: 0 auto;

}

.project-second-top div a {
  font-family: HarmonyOS_Sans_SC;
  font-size: 18px;
  color: black;
  text-decoration: none;
}

.project-second-top div .actived {
  color: rgb(47, 212, 254);
}

.project-second-top div a:hover,
.project-second-top div a:focus {
  color: rgb(47, 212, 254);
  /* 鼠标悬停或点击时颜色变为蓝色 */
}

.project-second-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  width: 1448px;
  margin: 56px auto;
}

.project-second-bottom div {
  position: relative;
  width: 449px;
  height: 325px;
  background-color: #f4f4f4;
  margin: 0 16px 31px;
}

.project-second-bottom div:hover {
  box-shadow: 0px 2px 8px 0px rgba(0, 0, 0, 0.16),
    inset 0px 1px 1px 0px rgba(255, 255, 255, 0.4)
}

.project-second-bottom div img {
  width: 449px;
  height: 325px;
}

.project-second-bottom div h3 {
  position: absolute;
  left: 22px;
  bottom: 30px;
  height: 25px;
  font-family: HarmonyOS_Sans_SC_Light;
  font-size: 18px;
  line-height: 25px;
  padding: 0 22px;
  color: #7e7e7e;
  font-weight: 500;
  background: url(../images/project/yousanjiao.png) no-repeat left center/13px 15px;
}

.project-second-sec {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  width: 1513px;
  margin: 56px auto;
}

.project-second-left {
  width: 212px;
}

.project-second-left-title {
  width: 212px;
  height: 41px;
  background-color: #21bbfc;
  margin-bottom: 1.5px;
  line-height: 41px;
  padding-left: 20px;
  color: #f8f8f8;
  position: relative;
}

.project-second-left-title img {
  position: absolute;
  right: 15px;
  bottom: 10px;
  width: 20px;
  height: 20px;
}

.project-second-left ul li {
  width: 212px;
  height: 41px;
  background-color: #f8f8f8;
  margin-bottom: 1.5px;
  line-height: 41px;
  padding-left: 20px;
  color: #6a6b6b;
  border-bottom: 1.5px solid #e0e1e1;
}

.project-second-left ul li.active {
  color: #21bbfc;
}

.project-second-left ul li:hover {
  color: #21bbfc;
  cursor: pointer;
}


.project-second-right {
  width: 1216px;
  background-color: #ffffff;
}

.project-second-right .detailTitle {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 60px auto;

}

.project-second-right .detailTitle img {
  width: 38px;
  vertical-align: middle;
}

.project-second-right .detailTitle h3 {
  font-family: HarmonyOS_Sans_SC;
  font-size: 35px;
  height: 45px;
  line-height: 45px;
  font-weight: 500;
  text-align: right;
  color: #3b3b3b;
  margin-left: 10px;
}



.project-second-right p {
  font-family: HarmonyOS_Sans_SC_Light;
  font-size: 20px;
  text-indent: 2em;
  line-height: 48px;
  color: #575757;
  margin: 10px 0;
}

.project-second-right .project-second-right-img {
  width: 1217px;
  margin: 30px 0;

}

.project-second-right h4 {
  font-family: HarmonyOS_Sans_SC_Light;
  font-size: 20px;
  font-weight: normal;
  line-height: 42px;
  color: #000000;
  text-align: center;
  margin: 10px 0 30px;
}

.project-second-right-title {
  height: 45px;
  line-height: 45px;
  padding-left: 10px;
  font-family: HarmonyOS_Sans_SC;
  font-size: 25px;
  font-weight: 500;
  color: #204e8c;
  background-color: #e5f5fd;
  border-left: 10px solid #204e8c;
  margin-top: 50px;
}

/* .project-second-right table tr {
  border-bottom: 2px solid #c0dcf0;
  background-color: #ffffff;
  height: 64px;
  width: 1217px;
} */