*{margin: 0px; padding: 0px;}

header{
  border-bottom: 1px solid #bbbbbb;
}

html, body{
	height: 100%; max-width: 1920px; margin: auto;
}

section{
	min-height: 100%;
}

.header{
  background-color: #dddddd;
  width: 100%; height: 100%;
  display: flex;
}

footer{
	position: relative;
}

.footer{
  position: absolute; bottom: -140px; left: 0px; width: 100%;
  display: flex; background-color: #dddddd; height: 100px;
  text-align: right;
}

.search_area{
  width: 60%; border-radius: 10px; padding: 6px;
}

.logo_area{
  margin-top: 6px;
}

.header_option{
  width: 100px;
  margin-top: 20px;
  text-align: center;
}

.login_btn{
  margin: 0px 4px; width: 50%; border: 2px solid #0068b7;
  text-align: center; border-radius: 10px;
  cursor: pointer;
}

.header_option:hover{
  color: purple;
  cursor: pointer;
}

.header_login_btn{
	background-color: #0068b7; width: 100px; text-align: center; 
	border-radius: 10px; margin-top: 16px; margin-bottom: 8px; margin-right: 20px; 
	margin-left: 10px; color: #dedede; font-weight: bold; cursor: pointer;
	padding-top: 2px;
}

.header_login_btn:hover{
	color: purple;
}

.poster{
  height: 160px;
  width: 230px;
}

.recom_category{
  margin-left: 10px; margin-right: 10px; color: #0068b7;
  font-size: 18px; font-weight: bold;
}
.recom_title{
  font-size: 24px; font-weight: bold; margin-top:10px; margin-left: 10px; margin-right: 10px;
  display: inline-block; width: 300px; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  white-space: normal; line-height: 1.2; height: 1.2em; text-align: left;
  word-wrap: break-word; display: -webkit-box; -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

.recom_summary{
  margin-top: 18px; margin-left: 10px;
  display: inline-block; width: 340px; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  white-space: normal; line-height: 1.3; height: 5em; text-align: left;
  word-wrap: break-word; display: -webkit-box; -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
}

.main_article{
  display: flex;
  flex-wrap: wrap; width: 100%; height: auto;
  background-color: #dddddd;
}

.recom_unit{
  width: 600px; height: 214px;
  border: 4px solid #343434; margin: 10px; border-radius: 10px;
}

.main_unit{
  height: 214px; width: 96%; margin: 10px; background-color: #dddddd;
  border: 4px solid #343434; margin: 10px; border-radius: 10px;
}

.main_title{
  font-size: 24px; font-weight: bold; margin-top:10px; margin-left: 10px; margin-right: 10px;
  display: inline-block; width: 80%; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  white-space: normal; line-height: 1.2; height: 1.2em; text-align: left;
  word-wrap: break-word; display: -webkit-box; -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

.main_category{
  margin-left: 10px; margin-right: 10px; color: #0068b7;
  font-size: 18px; font-weight: bold;
}

.main_summary{
  margin-top: 18px; font-size: 18px; margin-left: 10px;
  display: inline-block; width: 80%; max-width: 1800px; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  white-space: normal; line-height: 1.3; height: 5em; text-align: left;
  word-wrap: break-word; display: -webkit-box; -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
}

.page_btn_shape{
   border: solid black;
   border-width: 0 3px 3px 0;
   display: inline-block;
   padding: 3px;
}

.page_btn_shape:hover{
  cursor: pointer;
}

.next_btn{
  transform: rotate(-45deg);
  -webkit-transform: rotate(-45deg);
}

.prev_btn{
  transform: rotate(135deg);
  -webkit-transform: rotate(135deg);
}

.main_unit:hover .main_title{color: purple;}
.main_unit:hover { cursor: pointer;}
.recom_unit:hover {cursor: pointer;}
.recom_unit:hover .recom_title {color: purple;}

.more_btn{
  font-size: 18px; margin-top: 10px; margin-right: 30px;
}

.more_btn:hover{
  cursor: pointer;
}

.logo_area:hover{
  cursor: pointer;
}

button:hover{cursor: pointer;}

.notice_unit{
  display: flex; padding: 14px 0px; border-bottom: 2px solid #cccccc;
}

.notice_unit{
  cursor: pointer;
}

.notice_unit:hover {
  background-color: #aaaaaa;
}

.notice_no{
  width: 50px; text-align: center;
}

.notice_title{
  padding: 0px 6px; flex: 1;
}

.notice_date{
  width: 200px; padding-left: 6px;
}

.file_title{
  margin-right: 12px;
  display: inline-block; flex: 1; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  white-space: normal; line-height: 1.2; height: 1.4em; text-align: left;
  word-wrap: break-word; display: -webkit-box; -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

.file_no{
  width: 50px; text-align: center;
  display: inline-block; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  white-space: normal; line-height: 1.2; height: 1.4em;
  word-wrap: break-word; display: -webkit-box; -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

.video_mission{
  text-align: center; position: absolute; left: 50%; top: 50%; margin-left: -300px;
  margin-top: -60px;
  background-color: rgba(0,104,183,0.6); height: 80px; width: 600px; padding-top: 20px;
}

.index_video{
  position: relative; width: 100%; height: 550px;
  background-color: #333333; overflow: hidden;
}

.subtitle{
  display: flex; margin: 10px 20px; border-bottom: 3px solid #0068b7;
}

.footer_word{
  margin: auto 20px; font-size: 14px; color: #888888; width: 40%;
}

.page_btn{
  flex: 1; text-align: center;
}

.page_btn:hover{
  cursor: pointer;
  color: purple;
  font-size: 18px;
}

.paging_area{
  width: 50%; height: 30px; margin: 20px auto; display: flex;
}

.contact_area{
  margin: 10px; width: 680px; height: 38px; border: 2px solid #0068b7;
  padding-left: 20px; border-radius: 20px; font-size: 22px;
}

.login_input_area{
  width: 400px; height: 30px; margin: auto;
}

.login_input{
  font-size: 16px; width: 92%;
  border: 2px solid #0068b7; padding: 4px 10px; border-radius: 10px;
}
.verify_input{
	font-size: 16px; width: 70%; 
	border: 2px solid #0068b7; padding: 4px 10px; border-radius: 10px;
}

.login_from{
  position: absolute; top: 50%; left: 50%; width: 500px; height: 300px; margin-left: -250px;
  margin-top: -180px; border: 2px solid #aaaaaa; border-radius: 20px;
}

.register_one{
  display: flex; margin: 30px 50px;
}

.register_two{
  display: flex; margin: 50px 50px;
}

.register_input{
  width: 300px; padding: 4px 6px; border-radius: 10px; font-size: 16px;
}

.regitser_sub{
  width: 100px; font-size: 18px; margin-top: 4px;
}

.kpi_area{
  margin-left: 46px;text-align: center;
}
.kpi_box{
  width: 200px; height: 130px; border: 1px solid blue; margin: auto; border-radius: 20px;
}
.kpi_title{
  margin-top: 14px; font-size: 22px;
}
.kpi_num{
  font-size: 22px; margin-top: 20px;
}

.title_area{
  border-bottom: 3px solid #0068b7; margin-bottom: 20px; padding-bottom: 4px;
}

.title_input{
  width: 100%; padding: 6px; font-size: 22px; font-weight: bold;
}

.article_info{
  display: flex; border-bottom: 3px solid #0068b7; padding-bottom: 30px;
}

.detail_poster{
  width: 630px; height: 420px;
}

.article_info_one{
  display: flex; margin: 12px; Font-size: 20px;
}

.article_info_title{
  width: 160px;
}

.file_area{
  flex: 1; height: 100px; border: 1px solid #cccccc; overfolw-x: hidden; overflow-y: scroll;
}

.file_area_info{
  display: flex; font-size: 16px; border-bottom: 1px solid #222222;
}

.file_unit{
  display: flex; font-size: 16px; border-bottom: 1px solid #dddddd; padding: 4px 0px;
}

.poster_preview{
  position: relative; width: 630px; height: 420px; border: 1px solid black;
}

.poster_recom{
  position: absolute; top: 50%; left: 50%; margin-left: -100px; margin-top: -38px;
  width: 200px; height: 70px; border: 1px solid black; text-align: center;
}

.control_one{
  width: 30px; text-align: center;
}

.control_two{
  flex: 1; padding-left: 6px;
}

.control_three{
  width: 120px;
}

.control_btn{
  width: 80px;
}

.contact_copy{
  margin-right: 10px; border: 2px solid black; border-radius: 10px; 
  height: 24px; width: 80px; text-align: center; padding-bottom: 4px;
  margin-top: 4px; font-size: 20px; cursor: pointer;
}

.header_category:hover{ background-color: #aaaaaa; cursor: pointer;}

.close_preview{
	position: absolute; top: 6px; right: 6px; width: 24px; height: 24px; 
	background-color: rgba(255,255,255,0.5); 
	border-radius: 100%; text-align: center; font-size: 18px;
}

.close_preview:hover{
	cursor: pointer;
}

.lds-spinner {
  color: official;
  display: inline-block;
  position: relative;
  width: 80px;
  height: 80px;
  z-index: 999;
}
.lds-spinner div {
  transform-origin: 40px 40px;
  animation: lds-spinner 1.2s linear infinite;
}
.lds-spinner div:after {
  content: " ";
  display: block;
  position: absolute;
  top: 3px;
  left: 37px;
  width: 6px;
  height: 18px;
  border-radius: 20%;
  background: #0068b7;
}
.lds-spinner div:nth-child(1) {
  transform: rotate(0deg);
  animation-delay: -1.1s;
}
.lds-spinner div:nth-child(2) {
  transform: rotate(30deg);
  animation-delay: -1s;
}
.lds-spinner div:nth-child(3) {
  transform: rotate(60deg);
  animation-delay: -0.9s;
}
.lds-spinner div:nth-child(4) {
  transform: rotate(90deg);
  animation-delay: -0.8s;
}
.lds-spinner div:nth-child(5) {
  transform: rotate(120deg);
  animation-delay: -0.7s;
}
.lds-spinner div:nth-child(6) {
  transform: rotate(150deg);
  animation-delay: -0.6s;
}
.lds-spinner div:nth-child(7) {
  transform: rotate(180deg);
  animation-delay: -0.5s;
}
.lds-spinner div:nth-child(8) {
  transform: rotate(210deg);
  animation-delay: -0.4s;
}
.lds-spinner div:nth-child(9) {
  transform: rotate(240deg);
  animation-delay: -0.3s;
}
.lds-spinner div:nth-child(10) {
  transform: rotate(270deg);
  animation-delay: -0.2s;
}
.lds-spinner div:nth-child(11) {
  transform: rotate(300deg);
  animation-delay: -0.1s;
}
.lds-spinner div:nth-child(12) {
  transform: rotate(330deg);
  animation-delay: 0s;
}
@keyframes lds-spinner {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}