.container_head{
	width: 100%;
	height: 80px;
	background: url("https://read-img.beijzc.com/website/img/page_top.png");
	position: fixed;
	top:0;
	left: 0;
	z-index: 99;
}
.container_head_center{
	width: 1580px;
	height: 100%;
	/*background: #0e3383;*/
	margin: 0 auto;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.container_head_center_logo_box{
	height: 80px;
	display: flex;
	align-items: center;
}
.container_head_center_logo{
	width: 144px;
	height: 44px;
}
.container_head_center_tabber{

}
.container1 {
	display: grid;
	grid-template-columns: repeat(3, 1fr); /* 三列 */
	grid-template-rows: repeat(2, 1fr); /* 两行 */
	gap: 100px; /* 间距 */
	width: 80%;
	margin: 50px auto;
}
.box {
	background-color: #fff;
	padding: 20px;
	border-radius: 8px;
	box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
	text-align: center;
}
.box h2 {
	font-size: 20px;
	color: #333;
	margin-bottom: 10px;
}
.box p {
	font-size: 14px;
	color: #666;
	line-height: 1.6;
}
.container2 {
	width: 80%;
	margin: 50px auto;
	background-color: #fff;
	padding: 30px;
	box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
	border-radius: 8px;
	font-size: 14px;
}
h1 {
	text-align: center;
	color: #333;
	margin-bottom: 20px;
}
h2 {
	color: #444;
	margin-top: 30px;
	margin-bottom: 15px;
	border-bottom: 2px solid #ddd;
	padding-bottom: 5px;
}
p {
	color: #666;
	margin-bottom: 15px;
}
ul {
	list-style-type: disc;
	margin-left: 20px;
	color: #666;
}
.highlight {
	color: #333;
	font-weight: bold;
}
.nav{
	display: flex;
	align-items: center;
}
.nav a{
	display: block;
	font-size: 16px;
	font-family: PingFangSC, PingFang SC;
	font-weight: 400;
	color: #FFFFFF;
	margin: 0 15px;
	height: 80px;
	line-height: 80px;
	position: relative;
}
.span_s::before{
	content: '';
	display: block;
	width: 32px;
	height: 2px;
	position: absolute;
	bottom: 0;
	left: 50%;
	transform: translateX(-50%);
	background: #FFFFFF;
}
.container_page{
	width: 100%;
	height: 768px;
	background: url("https://read-img.beijzc.com/website/img/chuanghai.png") no-repeat center bottom, rgb(0,22, 170);
	background-size: 100% auto;
	position: relative;
	box-sizing: border-box;
	padding-top: 80px;

}
.container_page_text{
	font-size: 50px;
	font-family: PingFangSC, PingFang SC;
	font-weight: 500;
	color: #FFFFFF;
	line-height: 70px;
	letter-spacing: 2px;
	position: absolute;
	top: 45%;
	left: 50%;
	transform: translate(-50%);
}
.container_page_bottom{
	width: 100%;
	height: 120px;
	position: absolute;
	bottom: 0;
	background: rgba(255,255,255, .5);
	/*background: url("https://read-img.beijzc.com/website/img/pageone_bottom.png");*/
}
.container_page_bottom_center{
	width: 1280px;
	margin: 0 auto;
	height: 120px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	box-sizing: border-box;
	padding: 0 30px;
}
.container_page_bottom_center_li{
	display: flex;
	align-items: center;
}
.container_page_bottom_center_li img{
	width: 50px;
	height: 50px;
}
.container_page_bottom_center_li_text{
	padding-left: 12px;
}
.container_page_bottom_center_li_text p:nth-child(1){
	font-size: 18px;
	font-family: PingFangSC, PingFang SC;
	font-weight: 500;
	color: #FFFFFF;
	line-height: 25px;
}
.container_page_bottom_center_li_text p:nth-child(2){
	font-size: 14px;
	font-family: PingFangSC, PingFang SC;
	font-weight: 400;
	color: #FFFFFF;
	line-height: 20px;
}
.container_page_two{
	width: 100%;
	padding: 120px 0;
	background: #F5FAFD;
}
.container_page_two_center{
	width: 1280px;
	margin: 0 auto;
	background: #FFFFFF;
	padding: 40px 60px 70px;
	box-sizing: border-box;
}
.container_page_two_center_title{
	font-size: 50px;
	font-family: PingFangSC, PingFang SC;
	font-weight: 500;
	color: #333333;
	line-height: 70px;
	letter-spacing: 2px;
	text-align: center;

}
.container_page_two_center_txt{
	font-size: 24px;
	font-family: PingFangSC, PingFang SC;
	font-weight: 400;
	color: #000000;
	line-height: 33px;
	letter-spacing: 1px;
}
.container_page_two_center_ul{
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding-top: 40px;
}
.container_page_two_center_li{
	width: 280px;
	height: 260px;
	position: relative;
}
.container_page_two_center_li img{
	width: 280px;
	height: 260px;
}
.container_page_two_center_li_text{
	width: 280px;
	height: 77px;
	position: absolute;
	left: 0;
	bottom: 0;
	background: rgba(255,255,255,.3);
	font-size: 24px;
	font-family: PingFangSC, PingFang SC;
	font-weight: 500;
	color: #FFFFFF;
	line-height: 33px;
	letter-spacing: 1px;
	padding: 0 20px ;
	box-sizing: border-box;
}
.container_page_three{
	width: 100%;
	padding: 120px 0;
	background: #FFFFFF;
}
.container_page_three_center{
	width: 1280px;
	margin: 0 auto;
	box-sizing: border-box;
}
.container_page_three_center_title{
	font-size: 50px;
	font-family: PingFangSC, PingFang SC;
	font-weight: 500;
	color: #333333;
	line-height: 70px;
	letter-spacing: 2px;
}
.container_page_three_center_ul{
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	padding-top: 45px;
}
.container_page_three_center_li{
	width: 262px;
	height: 188px;
	background: #F5FAFD;
	margin-bottom: 60px;
}
.container_page_three_center_li video{
	width: 262px;
	height: 148px;
}
.container_page_four{
	width: 100%;
	padding: 120px 0;
	background: #F5FAFD;
}
.container_page_four_conter{
	width: 1280px;
	margin: 0 auto;
	box-sizing: border-box;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.container_page_four_conter_logo{
	padding-left: 39px;
}
.container_page_four_conter_logo img{
	width: 167px;
	height: 58px;
}
.container_page_four_conter_text{
	font-size: 24px;
	font-family: PingFangSC, PingFang SC;
	font-weight: 400;
	color: #000000;
	line-height: 41px;
}
.container_page_four_conter_text p{
	display: flex;
	align-items: center;
}
.container_page_four_conter_text p i{
	display: inline-block;
	width: 27px;
	height: 26px;
	background: url("https://read-img.beijzc.com/website/img/icon_phone.png") center;
	background-size: 100% auto;
	margin-right: 17px;
}
.container_page_four_conter_text p:nth-child(2) i{
	background: url("https://read-img.beijzc.com/website/img/icon_email.png") center;
	background-size: 100% auto;
}
.container_page_four_conter_text p:nth-child(3) i{
	background: url("https://read-img.beijzc.com/website/img/icon-location.png") center;
	background-size: 100% auto;
}
.container_page_four_conter_text p:nth-child(4) i{
	opacity: 0;
}
.tab-container {
    display: flex;
    width: 100%;
}
.tab-nav {
    width: 200px;
    background-color: #f4f4f4;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}
.tab-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.tab-nav ul li {
    margin: 15px 0;
}
.tab-nav ul li a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    display: block;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}
.tab-nav ul li a:hover {
    background-color: #ddd;
}
.tab-nav ul li a.active {
    background-color: #007bff;
    color: #fff;
}
.tab-nav1 {
    width: 200px;
    background-color: #f4f4f4;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}
.tab-nav1 ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.tab-nav1 ul li {
    margin: 15px 0;
}
.tab-nav1 ul li a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    display: block;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}
.tab-nav1 ul li a:hover {
    background-color: #ddd;
}
.tab-nav1 ul li a.active {
    background-color: #007bff;
    color: #fff;
}
.tab-content {
    flex: 1;
    padding: 20px;
}
.tab-pane {
    display: none;
}
.tab-pane.active {
    display: block;
}
.tab-pane1 {
    display: none;
}
.tab-pane1.active {
    display: block;
}
.video-list {
    display: flex;
    gap: 20px; /* 视频项之间的间距 */
    padding: 20px;
    overflow-x: auto; /* 允许横向滚动 */
}
.video-item {
    flex: 0 0 auto;
    width: 250px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.video-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}
.video-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}
.video-info {
    padding: 15px;
}
.video-info h3 {
    margin: 0 0 10px;
    font-size: 18px;
    color: #333;
}
.video-info p {
    margin: 5px 0;
    font-size: 14px;
    color: #666;
}
.video-info .source {
    color: #007bff;
}
.video-info .date {
    color: #999;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.modal-content {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    max-width: 600px;
    width: 100%;
    text-align: center;
}
.modal-content video {
    width: 100%;
    height: auto;
    border-radius: 8px;
}
.modal-content h2 {
    margin: 10px 0;
    font-size: 24px;
    color: #333;
}
.modal-content p {
    margin: 5px 0;
    font-size: 16px;
    color: #666;
}
.modal-content .close {
    display: inline-block;
    margin-top: 15px;
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.tab-nav2 {
    width: 200px;
    background-color: #f4f4f4;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}
.tab-nav2 ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.tab-nav2 ul li {
    margin: 15px 0;
}
.tab-nav2 ul li a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    display: block;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}
.tab-nav2 ul li a:hover {
    background-color: #ddd;
}
.tab-nav2 ul li a.active {
    background-color: #007bff;
    color: #fff;
}.tab-pane2 {
     display: none;
 }
.tab-pane2.active {
    display: block;
}
.tab-nav3 {
     width: 200px;
     background-color: #f4f4f4;
     padding: 20px;
     box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
 }
.tab-nav3 ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.tab-nav3 ul li {
    margin: 15px 0;
}
.tab-nav3 ul li a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    display: block;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}
.tab-nav3 ul li a:hover {
    background-color: #ddd;
}
.tab-nav3 ul li a.active {
    background-color: #007bff;
    color: #fff;
}.tab-pane3 {
     display: none;
 }
.tab-pane3.active {
    display: block;
}
.tab-nav4 {
    width: 200px;
    background-color: #f4f4f4;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}
.tab-nav4 ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.tab-nav4 ul li {
    margin: 15px 0;
}
.tab-nav4 ul li a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    display: block;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}
.tab-nav4 ul li a:hover {
    background-color: #ddd;
}
.tab-nav4 ul li a.active {
    background-color: #007bff;
    color: #fff;
}.tab-pane4 {
     display: none;
 }
.tab-pane4.active {
    display: block;
}

.tab-nav5 {
    width: 200px;
    background-color: #f4f4f4;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}
.tab-nav5 ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.tab-nav5 ul li {
    margin: 15px 0;
}
.tab-nav5 ul li a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    display: block;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}
.tab-nav5 ul li a:hover {
    background-color: #ddd;
}
.tab-nav5 ul li a.active {
    background-color: #007bff;
    color: #fff;
}.tab-pane5 {
     display: none;
 }
.tab-pane5.active {
    display: block;
}

.tab-nav6 {
    width: 200px;
    background-color: #f4f4f4;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}
.tab-nav6 ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.tab-nav6 ul li {
    margin: 15px 0;
}
.tab-nav6 ul li a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    display: block;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}
.tab-nav6 ul li a:hover {
    background-color: #ddd;
}
.tab-nav6 ul li a.active {
    background-color: #007bff;
    color: #fff;
}.tab-pane6 {
     display: none;
 }
.tab-pane6.active {
    display: block;
}
.expandable-row {
    cursor: pointer;
}
.expandable-content {
    display: none;
    padding: 10px;
    background-color: #f9f9f9;
    border-top: 1px solid #ddd;
}
.expandable-content table {
    width: 100%;
    margin-top: 10px;
    background-color: #fff;
    border-collapse: collapse;
}
.expandable-content th, .expandable-content td {
    padding: 8px;
    border: 1px solid #ddd;
}
.expandable-content th {
    background-color: #f1f1f1;
}