@charset "utf-8";
/* CSS Document */
.card {
	margin:25px 0px;
}
.card h1{
	font-size:24px;
}

.card h2{ /*“使用建议”中的二级标题*/
	font-weight:bold; font-size:18px;
}

#page-nav{ /*内容导航居中对齐*/
	margin:20px auto; width:400px; font-size:14px;
}

.pagination{   
	display: flex;
  	justify-content: center;
  	flex-wrap: wrap; 
  	padding-left: 0;
  	list-style: none;
	white-space: normal;
}

.current{ /*当前页标签加粗显示*/
	font-weight:bold; }

.image-right{
	padding-top:30px;
}

#skill1,#skill2,#skill3,#skill4{ /*默认时不显示块*/
	display:none;
	margin-top:12px;
}
#skill1{  /*默认时显示第一个块*/
	display:block;
}

#skill1 p,#skill2 p,#skill3 p,#skill4 p{
	margin-top:5px;
}

#skillimage1,#skillimageover2,#skillimageover3,#skillimageover4{ /*默认时显示第一个按钮的高亮状态和其他按钮的默认状态*/
	display:none;
}

.title-underline {
            border-bottom: 2px solid ; /* solid line under the title */
            padding-bottom: 5px; /* space between text and line */
            margin-bottom: 20px; /* space below the line */
}

.mission-table {
    width: 90%;
	margin-left:auto; margin-right:auto;
    border-collapse: collapse; /* Removes spacing between cells */
}

.mission-table td {
    border: 1px solid #ccc; 
    padding: 8px;
    text-align: left;
}

.mission-table thead th {
    text-align: center;
	border: 1px solid #ccc;
}

.mission-table th:nth-child(1),
.mission-table td:nth-child(1) {
    width: 20%;
}

.mission-table th:nth-child(2),
.mission-table td:nth-child(2) {
    width: 20%;
}

.mission-table th:nth-child(3),
.mission-table td:nth-child(3) {
    width: 60%;
}

#record-nav li{ 	
	display:inline-block;
	width:32%;
	text-align:center;
	border-bottom: 2px solid;
}
#record-nav li a{ 
	display:block;
	padding:10px 0px 6px;
	text-decoration: none;
	color: black;
}
#record-nav li a:hover{ 	
	background:#e4e4e3;
	color: black; 	
}

.op-vid-con {
	display:flex;
	justify-content:center;
	align-items:center;
	height:50vh;
	width:100%;
}
.op-vid {
	max-height:100%; 
	max-width:100%; 
	object-fit:contain;
}

.date {
	color: grey;
	font-style: italic;
}

.sticky-cell {
  position: relative;
}
.bottom-right {
  position: absolute;
  bottom: 0;
  right: 0;
  font-style: italic;
}

.news-header {
  left: 0;
  width: 100%;
  height: 15vh;
  background-color: #101747;
  display: flex;
  justify-content: center;
  align-items: center;
}
.news-header img {
  height: 100%;
  width: auto;
}

.news-comments {
  border-top: 2px solid #ccc;
  border-bottom: 2px solid #ccc;
  padding: 0px;
  margin: 15px 0;
}
.news-comments a {
  display: block;
  text-align: center;
  text-decoration: underline;
  cursor: pointer;
  color: #333;
}

.collapse {
  display: none;
  text-align: left;
}
.card-body {
  padding: 10px;
  line-height: 1.6;
}