header {
  background: #e5e5e5;
}
header > div {
  position: relative;
  width: 1180px;
  height: 104px;
  margin: 0 auto;
  text-align: center;
}
header h1 {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translate(0, -50%);
}
header nav {
  z-index: 30;
}
header nav > ul {
  position: absolute;
  left: 50%;
  transform: translate(-50%, 0);
  font-size: 0;
  z-index: 30;
}
header nav > ul > li {
  display: inline-block;
  position: relative;
  padding-top: 26px;
}
header nav > ul > li > a {
  display: inline-block;
  height: 54px;
  padding: 0 28px;
  line-height: 54px;
  font-size: 14px;
  color: #333;
  font-weight: bold;
}
/* a:after에 배경을 주지않고 요소a에 직접 준다. */
header nav > ul > li > a:hover {
  color: #fff;
  background-color: #1428a0;
  border-radius: 30px;
}
header nav > ul > li:hover:after {
}
header .search {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translate(0, -50%);
}
header .search a {
  display: block;
  width: 53px;
  height: 53px;
  border: 1px solid #636363;
  box-sizing: border-box;
  line-height: 53px;
  color: transparent;
  font-size: 0;
}
header .search a:after {
  content: "";
  position: absolute;
  background: url(../images/ico_search1.png) no-repeat center;
  width: 21px;
  height: 21px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.5s;
}
header .search:hover a {
  background-color: #1428a0;
}
/* header .search.on{ background: url(../images/ico_search1_focus.png) no-repeat center #1428a0;} */

header .search:hover a:after {
  background: url(../images/ico_search1_focus.png);
}
header .search:focus a:after {
  background: url(../images/ico_search1_focus.png);
}
header .search.on a:after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 11px;
  height: 11px;
  background: url(../images/ico_search1_1.png) no-repeat center;
}
.search2 {
  display: none;
  position: absolute;
  top: 105px;
  width: 100%;
  height: 120px;
  background: #fff;
  border-bottom: 1px solid #d6d6d6;
  z-index: 10;
}
.search2 > div {
  position: relative;
  width: 1180px;
  margin: 0 auto;
  padding: 40px 0 0;
}
.search2 input[type="text"] {
  width: 380px;
  height: 35px;
  border: none;
  border-bottom: 1px solid #333;
}
.search2 a {
  position: absolute;
  right: 415px;
  top: 47px;
  width: 17px;
  height: 18px;
  background: url(../images/ico_search1_2.png) no-repeat center;
  font-size: 0;
}

header .menu2 {
  display: none;
  background: #fff;
  width: 100%;
}
header .menu2 > div {
  width: 1180px;
  height: 100%;
  background: #fff;
  border-top: 1px solid #636363;
  margin: 0 auto;
  padding: 39px 100px 0 100px;
  box-sizing: border-box;
}
header .menu2 > div > div {
  float: left;
  border-left: 1px solid #d6d6d6;
  height: 371px;
  text-align: left;
  box-sizing: border-box;
  padding-left: 30px;
}
header .menu2 > div > div:first-child {
  width: 210px;
  border-left: none;
  padding-left: 0;
}
header .menu2 > div > div:last-child {
  width: 205px;
}
header .menu2 > div > div.menu2_middle {
  width: 565px;
  padding: 0 55px;
}
header .menu2 > div > div > ul > li {
  line-height: 40px;
}
header .menu2 ul li a:hover {
  color: #13289f;
}
header .menu2 .menu2_middle > ul > li > a {
  font-weight: bold;
}
header .menu2 .menu2_middle > ul > li ul {
  padding-bottom: 7px;
}
header .menu2 .menu2_middle > ul > li ul li {
  line-height: 25px;
  float: left;
  width: 50%;
}
header .menu2 .manu2_ad img {
  margin: 38px 0 99px;
}
header .menu2 > div > div h2 {
  font-size: 18px;
  color: #1428a0;
  padding-bottom: 24px;
}
header .menu2 > div > div li a {
  font-size: 14px;
  color: #636363;
}

.visual1 {
  position: relative;
  background: url(../images/bg_visual1.jpg) no-repeat center;
  height: 585px;
  text-align: center;
}
.visual1 > div {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  line-height: 70px;
}
.visual1 p {
  font-size: 41px;
  color: #fff;
  font-weight: bold;
}
.visual1 > div div {
  font-size: 15px;
  color: #fff;
  line-height: 31px;
  padding: 20px 0 29px;
}
.visual1 a {
  display: inline-block;
  font-size: 13px;
  color: #fff;
  width: 183px;
  height: 42px;
  line-height: 42px;
  background: #1428a0;
  border-radius: 42px;
}
.visual1 a:before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 11px;
  background: url(../images/bu_arrow.png) no-repeat center;
  margin-right: 15px;
}
.swiper-container {
  position: relative;
}
.swiper-pagination {
  position: absolute;
  bottom: 49px;
  width: 100%;
  text-align: center;
  z-index: 10;
}
.swiper-pagination span {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 10px;
  background: #fff;
  transition: all 0.2s;
  margin-right: 19px;
}
.swiper-pagination span:last-child {
  margin-right: 0;
}
.swiper-pagination span.swiper-pagination-bullet-active {
  width: 45px;
  background: #1428a0;
}
.visual2 {
  position: relative;
  background: url(../images/bg_visual2.jpg) no-repeat center;
  height: 585px;
  text-align: center;
}
.slide .next,
.slide .prev {
  position: absolute;
  width: 74px;
  height: 74px;
  border: 2px solid #fff;
  top: 50%;
  transform: translate(0, -50%);
  box-sizing: border-box;
  z-index: 10;
  transition: all 0.5s;
}
.slide .prev {
  left: 50px;
}
.slide .next {
  right: 50px;
}
.slide .prev:after {
  content: "";
  position: absolute;
  left: 29px;
  top: 27px;
  width: 9px;
  height: 16px;
  background: url(../images/bu_arrow_visual.png) no-repeat center;
}
.slide .next:after {
  content: "";
  position: absolute;
  left: 29px;
  top: 27px;
  transform: scaleX(-1);
  filter: FlipH;
  width: 9px;
  height: 16px;
  background: url(../images/bu_arrow_visual.png) no-repeat center;
}
.slide .next:hover,
.slide .prev:hover {
  background: #1428a0;
  border-color: #1428a0;
}

.researchareas {
  position: relative;
  background: #e5e5e5;
  padding: 105px 0 120px;
}
.researchareas h2 {
  font-size: 26px;
  color: #333;
  text-align: center;
  line-height: 100%;
  padding-bottom: 58px;
}
.researchareas ul {
  position: relative;
  width: 1180px;
  margin: 0 auto;
}
.researchareas li {
  position: relative;
  float: left;
  width: 380px;
  height: 185px;
  background: no-repeat 30px 41px #fff;
  margin-right: 20px;
  margin-bottom: 20px;
}
.researchareas li a {
  display: block;
  width: 380px;
  height: 185px;
  padding: 43px 0 0 120px;
  box-sizing: border-box;
}
.researchareas .ico1 {
  background-image: url(../images/ico_research1.png);
}
.researchareas .ico2 {
  background-image: url(../images/ico_research2.png);
}
.researchareas .ico3 {
  background-image: url(../images/ico_research3.png);
}
.researchareas .ico4 {
  background-image: url(../images/ico_research4.png);
}
.researchareas .ico5 {
  background-image: url(../images/ico_research5.png);
}
.researchareas .ico6 {
  background-image: url(../images/ico_research6.png);
}
.researchareas li:nth-child(3n) {
  margin-right: 0;
}
.researchareas li p {
  line-height: 100%;
  padding-bottom: 18px;
  font-size: 14px;
  color: #333;
  font-weight: bold;
}
.researchareas li div {
  line-height: 25px;
  font-size: 12px;
  color: #636363;
}
.border_action em {
  position: absolute;
  background-color: #1b2b83;
  transition: all 0.3s;
}
.border_action em:nth-last-of-type(1) {
  left: 0;
  top: 0;
  width: 3px;
  height: 0%;
}
.border_action em:nth-last-of-type(2) {
  left: 0;
  bottom: 0;
  width: 0%;
  height: 3px;
}
.border_action em:nth-last-of-type(3) {
  right: 0;
  bottom: 0;
  width: 3px;
  height: 0%;
}
.border_action em:nth-last-of-type(4) {
  right: 0;
  top: 0;
  width: 0%;
  height: 3px;
}
.researchareas li:hover .border_action em:nth-last-of-type(1) {
  height: 100%;
}
.researchareas li:hover .border_action em:nth-last-of-type(2) {
  width: 100%;
}
.researchareas li:hover .border_action em:nth-last-of-type(3) {
  height: 100%;
}
.researchareas li:hover .border_action em:nth-last-of-type(4) {
  width: 100%;
}
.next2,
.prev2 {
  position: absolute;
  top: 50%;
  transform: translate(0, -50%);
  width: 22px;
  height: 42px;
  z-index: 10;
}
.next2 {
  background: url(../images/bu_arrowSlideR.png) no-repeat center;
  right: 28px;
}
.prev2 {
  background: url(../images/bu_arrowSlideL.png) no-repeat center;
  left: 28px;
}

.ad {
  padding: 115px 0 120px;
  background: #e5e5e5;
}
.ad > div {
  position: relative;
  width: 1180px;
  margin: 0 auto;
}
.ad > div > div {
  float: left;
  margin-right: 20px;
}
.ad > div > div:last-child {
  margin-right: 0;
}
.ad .img img {
  width: 580px;
  height: 280px;
}

.pp {
  position: relative;
  width: 280px;
  height: 280px;
  background: #fff;
  box-sizing: border-box;
}
.pp em {
  position: absolute;
  background-color: #1b2b83;
  transition: all 0.3s;
  z-index: 11;
}
.pp em:nth-last-of-type(1) {
  left: 0;
  top: 0;
  width: 3px;
  height: 0%;
}
.pp em:nth-last-of-type(2) {
  left: 0;
  bottom: 0;
  width: 0%;
  height: 3px;
}
.pp em:nth-last-of-type(3) {
  right: 0;
  bottom: 0;
  width: 3px;
  height: 0%;
}
.pp em:nth-last-of-type(4) {
  right: 0;
  top: 0;
  width: 0%;
  height: 3px;
}
.pp:hover em:nth-last-of-type(1) {
  height: 100%;
}
.pp:hover em:nth-last-of-type(2) {
  width: 100%;
}
.pp:hover em:nth-last-of-type(3) {
  height: 100%;
}
.pp:hover em:nth-last-of-type(4) {
  width: 100%;
}
.pp h2 {
  position: absolute;
  left: 20px;
  top: 25px;
  font-size: 14px;
  color: #1428a0;
  z-index: 11;
}
.swiper-container.slide3 {
  position: absolute;
  left: 0;
  top: 0;
  width: 280px;
  height: 280px;
  background: #fff;
  z-index: 10;
  box-sizing: border-box;
}
.swiper-container.slide3 .swiper-button-next3 {
  position: absolute;
  right: 20px;
  top: 20px;
  width: 25px;
  height: 25px;
  background: url(../images/ico_prev_slide3R.png) no-repeat center;
  font-size: 0;
  z-index: 10;
}
.swiper-container.slide3 .swiper-button-next3:hover {
  background: url(../images/ico_prev_slide3R_hover.png) no-repeat center;
}
.swiper-container.slide3 .swiper-button-prev3 {
  position: absolute;
  right: 49px;
  top: 20px;
  width: 25px;
  height: 25px;
  background: url(../images/ico_prev_slide3L.png) no-repeat center;
  font-size: 0;
  z-index: 10;
}
.swiper-container.slide3 .swiper-button-prev3:hover {
  background: url(../images/ico_prev_slide3L_hover.png) no-repeat center;
}
.swiper-container.slide3 .swiper-button-prev3:focus {
  background: url(../images/ico_prev_slide3L_hover.png) no-repeat center;
}
.swiper-container.slide3 .swiper-slide .txt {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  width: 200px;
  position: absolute;
  left: 21px;
  top: 69px;
  line-height: 27px;
  font-size: 15px;
  color: #333;
  font-weight: bold;
}
.swiper-container.slide3 .swiper-slide p {
  position: absolute;
  left: 21px;
  top: 208px;
  line-height: 100%;
  font-size: 12px;
  color: #757575;
}
.swiper-container.slide3 .swiper-slide .readmore {
  position: absolute;
  left: 21px;
  top: 245px;
  font-size: 12px;
  color: #333;
}
.swiper-container.slide3 .swiper-slide .readmore:hover {
  color: #13289f;
}
.swiper-container.slide3 .swiper-slide .readmore:after {
  content: "";
  display: inline-block;
  margin-left: 10px;
  width: 5px;
  height: 8px;
  background: url(../images/bu_arrow_readmore.png) no-repeat center;
  transition: all 0.2s;
}
.swiper-container.slide3 .swiper-slide .readmore:hover:after {
  margin-left: 15px;
}
.swiper-container.slide3 .swiper-slide {
  position: relative;
}

/* footer */
footer {
  background: #1f1f1f;
}
footer > div {
  position: relative;
  padding: 70px 0 66px;
  width: 1180px;
  margin: 0 auto;
}
footer > div > div {
  content: "";
  display: block;
  clear: both;
  color: #a7a7a7;
  font-size: 12px;
}
footer > div > div a {
  color: #a7a7a7;
  font-size: 12px;
}
footer .left1 {
  float: left;
}
.footerTop {
  padding: 0 0 33px;
  border-bottom: 1px solid #363636;
}
.footerTop li {
  float: left;
}
.footerTop li.on a {
  color: #f0f8ff;
}
.footerTop li:hover a {
  color: #f0f8ff;
}
.footerTop li:before {
  content: "";
  display: inline-block;
  margin: 0 11px 0;
  background: #4c4c4c;
  width: 1px;
  height: 12px;
}
.footerTop li:first-child:before {
  display: none;
}
.footerTop p a {
  display: block;
  position: absolute;
  right: 0;
  top: 25px;
  width: 97px;
  height: 63px;
  background: url(../images/ico_webMark.png) no-repeat center;
  color: transparent;
  overflow: hidden;
}
footer .right1 {
  float: right;
}
.footerBottom {
  padding: 30px 0 0;
}
.footerBottom address {
  line-height: 27px;
}
.footerBottom span {
  display: block;
  width: 266px;
  height: 19px;
  background: url(../images/ico_footerLogo.png) no-repeat center;
  color: transparent;
}