* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
li {
  list-style: none;
}
.nav {
  height: 70px;
  background: #333333;
  display: flex;
}
.nav .log {
  width: 251px;
  align-self: center;
  text-align: center;
  color: #fdfdfd;
  font-size: 22px;
  padding-left: 10px;
}
.nav .nav-item {
  flex: 1;
  display: flex;
  color: #fdfdfd;
  padding-left: 30px;
}
.nav .nav-item li {
  align-self: center;
  padding: 0 15px;
  font-size: 14px;
}
.nav .info {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  width: 180px;
  color: #fdfdfd;
  padding-right: 30px;
}
.nav .info li {
  padding: 0 15px;
  font-size: 14px;
}
.des {
  height: 190px;
  background: #f2f2f2;
  overflow: hidden;
  position: relative;
}
.des img {
  position: absolute;
  width: 100%;
}
.content {
  background: #fff;
  display: flex;
  padding: 40px 40px 0 40px;
}
.content .left {
  width: 210px;
  height: 600px;
  border-right: solid 1px #cccccc;
}
.content .left ul .td {
  border-bottom: solid 1px #cccccc;
}
.content .left ul .td li:nth-child(1) input {
  width: 125px;
  height: 30px;
  padding-left: 10px;
  border-radius: 5px;
  outline: none;
  border: solid 1px #cccccc;
}
.content .left ul .td li {
  color: #555555;
  font-size: 16px;
}
.content .left ul .td li:nth-of-type(n+2) {
  margin-top: 20px;
}
.content .left ul .td li:last-child {
  margin-bottom: 20px;
}
.content .left ul .td li.active {
  color: #3ea3ff;
}
.content .left ul .td li:hover {
  color: #3ea3ff;
  cursor: pointer;
}
.content .left ul .bd {
  padding-top: 20px;
}
.content .left ul .bd li {
  margin-bottom: 10px;
  color: #555555;
  font-size: 14px;
}
.content .left ul .bd li:hover {
  color: #3ea3ff;
  cursor: pointer;
}
.content .right {
  flex: 1;
  height: 600px;
  margin-left: 40px;
}
.content .right ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.content .right ul li {
  width: 30%;
  height: 360px;
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
  border: solid 1px #e5e5e5;
}
.content .right ul li .hd {
  flex: 2;
  background: #e5e5e5;
  position: relative;
  overflow: hidden;
}
.content .right ul li .hd img {
  width: 100%;
  position: absolute;
}
.content .right ul li .td {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.content .right ul li .td > div:nth-child(1) {
  flex: 1;
  padding: 18px 0 0 18px;
  border-top: solid 1px #f4f4f4;
}
.content .right ul li .td > div:nth-child(1) h3 {
  font-weight: normal;
  color: #666666;
  font-size: 16px;
}
.content .right ul li .td > div:nth-child(2) {
  height: 50px;
  border-top: solid 1px #f4f4f4;
  display: flex;
}
.content .right ul li .td > div:nth-child(2) > span {
  flex: 1;
  line-height: 50px;
  padding-left: 15px;
  font-size: 14px;
  color: #666666;
}
.content .right ul li .td > div:nth-child(2) > div {
  display: flex;
  align-items: center;
}
.content .right ul li .td > div:nth-child(2) > div button {
  height: 28px;
  width: 60px;
  outline: none;
  border: none;
  margin-right: 15px;
  font-size: 12px;
}
.content .right ul li .td > div:nth-child(2) > div .gray-btn {
  background: #333333;
  color: #fff;
  border: solid 1px #333333;
}
.content .right ul li .td > div:nth-child(2) > div .gray-btn:hover {
  background: #000000;
  border: solid 1px #000000;
}
.content .right ul li .td > div:nth-child(2) > div .white-btn {
  border: solid 1px #e5e5e5;
  background: #ffffff;
}
.content .right ul li .td > div:nth-child(2) > div .white-btn:hover {
  border: solid 1px #aaaaaa;
}
.content .right ul > li:hover {
  box-shadow: 0 0px 7px rgba(0, 0, 0, 0.3);
}