.sec-nav {
  line-height: 60px;
  height: 60px;
  background: #f8f8f8;
  border-bottom: 1px solid #999;
  color: #666;
}
.sec-nav-con {
  max-width: 1200px;
  text-align: center;
  margin: 0 auto;
  display: flex;
  justify-content: center;
}
.sec-nav-one {
  flex: 0 0 250px;
  text-align: center;
  display: inline-block;
  cursor: pointer;
}
.sec-nav-one-selected {
  color: #00a2ff;
}
.menu {
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px 0;
}
.article {
  max-width: 1200px;
  margin: 0 auto;
}
.article-con {
  display: flex;
  justify-content: space-between;
  margin-bottom: 30px;
}
.article-one {
  box-sizing: border-box;
  flex: 0 0 200px;
  padding: 20px;
  box-shadow: #ccc 5px 10px 10px;
  height: 800px;
  overflow-y: auto;
}
.article-one::-webkit-scrollbar {
  width: 5px;
  height: 1px;
  background-color: #f5f5f5;
}
.article-one::-webkit-scrollbar-thumb {
  /*滚动条里面小方块*/
  border-radius: 10px;
  box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
  background: #535353;
}
.rticle-one-title {
  font-size: 18px;
  font-weight: 600;
}
.rticle-one-li {
  padding: 30px 0;
  line-height: 36px;
}
.rticle-one-col {
  display: flex;
  align-items: center;
  height: 36px;
  font-size: 18px;
  cursor: pointer;
}
.rticle-one-col-word {
  width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  font-size: 16px;
}
.word-blue {
  color: #00a2ff;
}
.article-two {
  flex: 1;
  margin-left: 50px;
}
.article-two-li {
  padding: 15px 10px;
  border-bottom: 1px solid #aaa;
  height: 140px;
  overflow: hidden;
  display: flex;
  box-sizing: border-box;
  /* align-items: center; */
  cursor: pointer;
}
.article-two-li:hover {
  border: #00a2ff 2px solid;
}
.article-two-left {
  flex: 0 0 160px;
  text-align: center;
}
.article-two-left img {
  width: 150px;
  height: 105px;
}
.article-two-right {
  flex: 1;
  padding: 0 20px;
}
.article-two-right-title {
  font-size: 18px;
  overflow: hidden;
  font-weight: 600;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  letter-spacing: 0.7px;
}
.article-two-right-content {
  padding-top: 5px;
  font-size: 14px;
  overflow: hidden;
  color: #666;
  height: 60px;
  line-height: 20px;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  letter-spacing: 0.7px;
}
.article-two-right-tip {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: #666;
  padding-top: 5px;
}
.article-author {
  text-align: left;
}
.article-author {
  text-align: right;
}
.sec {
  background-color: #fdfdfd;
}
.guide {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}
.guide-con {
  display: flex;
  justify-content: space-between;
}
.guide-one {
  width: 270px;
  height: 200px;
  overflow: hidden;
  background-color: #fff;
  box-shadow: #ddd 0px 0px 10px 1px;
  border-radius: 5px;
}
.video-title {
  padding: 10px;
  text-align: center;
}
.attestation {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}
.attestation-con {
  display: flex;
}
.attestation-one {
  display: flex;
  align-items: center;
  flex: 1;
  margin: 0 30px 30px 30px;
  height: 250px;
  box-shadow: #ddd 0px 0px 10px 1px;
  overflow: hidden;
}
.attestation-one-left {
  text-align: center;
  flex: 0 0 200px;
}
.attestation-one-left img {
  width: 141px;
  height: 141px;
}
.contract {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}
.contract-con {
  display: flex;
  justify-content: space-between;
  margin: 0 50px;
  margin-bottom: 50px;
}
.contract-one {
  flex: 0 0 200px;
}
.contract-one-img {
  padding: 50px;
  border-bottom: 2px solid #f4b800;
  margin-bottom: 40px;
}
.contract-one-img img {
  width: 65px;
  height: 65px;
}
.contract-one-word {
  font-size: 18px;
}
.search {
  height: 330px;
  background-image: url(./../images/resource_part1_1.png);
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}
.search-con {
}
.search-input {
  border: 0;
  border-radius: 3px;
  outline-style: none;
  font-size: 18px;
  padding: 0 20px;
  width: 350px;
  line-height: 40px;
  height: 40px;
}
.search-btn {
  display: inline-block;
  padding: 0 25px;
  height: 40px;
  line-height: 40px;
  background: #00a2ff;
  color: #fff;
  cursor: pointer;
  border-radius: 5px;
}
.problem {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}
.problem-li {
  text-align: left;
  background: #fefefe;
  margin: 10px 0;
  padding: 10px;
  border-bottom: 1px solid #aaa;
}
.problem-title {
  font-size: 16px;
  cursor: pointer;
  padding-bottom: 15px;
}
.problem-detail {
  padding-bottom: 15px;
  line-height: 36px;
  color: #666;
  font-size: 15px;
}
.detail-content{
	padding:30px 0;
	overflow: hidden;
}
.detail-content img{
	max-width: 100%;
}