@charset "utf-8";

/* CSS Document */
html {
	background: #FFF;
	font-size: 62.5%;
	/* 10÷16=62.5% */
}

body {
	font-size: 14px;
	font-size: 1.4rem;
	/* 14÷10=1.4 */
	color: #333;
	font-family: 'Microsoft YaHei', SimSun, SimHei, "STHeiti Light", STHeiti, "Lucida Grande", Tahoma, Arial, Helvetica, sans-serif;
}

html,
body,
address,
blockquote,
div,
dl,
form,
h1,
h2,
h3,
h4,
h5,
h6,
ol,
p,
pre,
table,
ul,
dd,
dl,
dt,
li,
tbody,
td,
tfoot,
th,
thead,
tr,
button,
del,
ins,
map,
object,
a,
abbr,
acronym,
b,
bdo,
big,
br,
cite,
code,
dfn,
em,
i,
img,
kbd,
q,
samp,
small,
span,
strong,
sub,
sup,
tt,
var,
legend,
fieldset {
	margin: 0px;
	padding: 0px;
	-webkit-font-smoothing: subpixel-antialiased;
}

table {
	border-collapse: collapse;
	border-spacing: 0;
	width: 100%;
}

fieldset,
img {
	border: 0;
}

img,
object {
	max-width: 100%;
	/*height:auto;*/
	width: auto\9;
	/* for ie8 */
	-ms-interpolation-mode: bicubic;
}

a {
	outline: none;
	blr: expression(this.onFocus=this.blur());
	text-decoration: none;
	color: #333;
}

a:hover {
	color: #003b90;
	text-decoration: none;
}

input[type='button'] {
	outline: none;
	border: 0 none;
	background-color: transparent;
	cursor: pointer;
}

address,
caption,
cite,
code,
dfn,
em,
strong,
th,
var {
	font-style: normal;
	font-weight: 400;
}

ul,
ol,
li {
	list-style: none outside none;
}

.tc {
	text-align: center !important;
}

.tl {
	text-align: left !important;
}

.tr {
	text-align: right !important;
}

.pa {
	position: absolute;
}

.pr {
	position: relative;
}

h1,
h2,
h3,
h4,
h5,
h6 {
	font-size: 100%;
}

q:before,
q:after {
	content: '';
	content: none;
}

input,
textarea,
select {
	font-weight: inherit;
}

input,
select,
textarea,
button {
	vertical-align: middle
}

.clearFix {
	*zoom: 1;
	clear: both;
}

.clearFix:after {
	content: '';
	display: block;
	clear: both;
}

.clear {
	width: 100%;
	overflow: hidden;
}

.imgResponsive {
	width: 100%;
	height: 0;
	padding-bottom: 56.25%;
	overflow: hidden;
	display: block;
}

.imgResponsive img {
	width: 100%;
}

/*头部样式*/
.bjtu-header {
	width: 100%;
	min-width: 300px;
	height: auto;
	z-index: 990;
	position: fixed;
	top: 0;
	left: 0;
	transition: all 0.3s ease-in-out;
}

.black_bg01,
.mobile_bg02 {
	position: fixed;
	background-color: #000;
	opacity: 0.7;
	width: 100%;
	height: 100%;
	display: none;
	filter: alpha(opacity=70);
	z-index: 90;
}

.bjtu-top {
	background: #005bac url(../gc_pic/logo_bg.png) no-repeat top right;
	background-position: 80%;
}

.bjtu-top>div {
	width: 1200px;
	margin: 0 auto;
}

.bjtu-logo {
	width: auto;
	float: left;
	padding: 12px 0 13px;
	transition: margin 0.3s ease-in-out;
	position: relative;
	z-index: 200;
}

.bjtu-logo a {}

.bjtu-topNav {
	float: right;
	padding-top: 10px;
	padding-right: 40px;
}

.bjtu-topNav a {
	display: inline-block;
	*display: inline;
	*zoom: 1;
	background-color: #004d92;
	height: 25px;
	border-radius: 15px;
	line-height: 23px;
	padding: 0 10px;
	font-size: 14px;
	font-weight: bold;
	margin: 0 4px;
	transition: all 0.3s ease-in-out;
}

.bjtu-topNav .bjtu-serBtn {
	width: 32px;
	height: 32px;
	text-align: center;
	background-color: #f6ad3c;
	line-height: 32px;
	color: #fff;
	font-size: 18px;
	padding: 0;
	font-weight: normal;
	margin-right: 0;
	border-radius: 5px;
}

.bjtu-topNav a.a1 {
	color: #f6ad3c;
}

.bjtu-topNav a.a2 {
	color: #51c200;
}

.bjtu-topNav a.a3 {
	color: #00ccbe;
}

.bjtu-topNav a.a4 {
	color: #fe5635;
}

.bjtu-topNav a.a1:hover {
	color: #fff;
	background-color: #f6ad3c
}

.bjtu-topNav a.a2:hover {
	color: #fff;
	background-color: #51c200
}

.bjtu-topNav a.a3:hover {
	color: #fff;
	background-color: #00ccbe
}

.bjtu-topNav a.a4:hover {
	color: #fff;
	background-color: #fe5635
}

.bjtu-topNav a.a5 {
	background: none;
	font-weight: normal;
	color: #fff;
	margin: 0 30px;
}

.bjtu-nav {
	height: 46px;
	position: relative;
	transition: all 0.3s ease-in-out;
	*background: url(../../images/img2019/nav_bg.png) repeat;
}

.bjtu-nav:before {
	content: '';
	width: 100%;
	height: 100%;
	background-color: #004e91;
	opacity: 0.6;
	filter: alpha(opacity=60);
	position: absolute;
	left: 0;
	top: 0;
	z-index: 0
}

.bjtu-nav>ul {
	width: 1200px;
	margin: 0 auto;
	height: 46px;
	position: relative;
	z-index: 2;
	transition: all 0.3s ease-in-out;
}

.bjtu-nav li {
	width: 11.1%;
	float: left;
	text-align: center;
	position: relative;
}

.bjtu-nav li>a {
	color: #fff;
	line-height: 46px;
	display: block;
	height: 46px;
	font-size: 16px;
	font-weight: bold;
}

.bjtu-nav ul li.on>a,
.bjtu-nav ul li:hover>a {
	color: #005bac;
	position: relative;
	z-index: 3
}

.bjtu-nav ul li:before,
.bjtu-nav ul li:after {
	content: '';
	width: 0;
	position: absolute;
	left: 50%;
	top: 0;
	transition: all 0.3s ease;
}

.bjtu-nav ul li:before {
	height: 4px;
	background-color: #eea200;
	z-index: 1
}

.bjtu-nav ul li:after {
	height: 46px;
	background-color: #cce1fa;
	z-index: 0;
	width: 0
}

.bjtu-nav ul li.on:before,
.bjtu-nav ul li.on:after {
	left: 0;
	width: 100%;
}

.bjtu-nav ul li.on .bjtu-subNav {
	display: block;
}

.bjtu-subNav {
	display: none;
	position: absolute;
	left: 0;
	top: 46px;
	display: none;
	width: 150%;
	font-size: 14px;
	*background: url(../../images/img2019/subNav_bg.png) repeat;
}

.sub_nav {
	display: none;
	width: 100%;
	position: absolute;
	left: 100%;
	bottom: 0px;
	background: #d6e7fb;
	transition: 0.5s;
	transform: rotateX(360deg);
}

.ph_sub_nav {
	display: none;
	margin: 0 0 0 10px;
}

.mobile_subNav dd.current .ph_sub_nav {
	display: block;
}

.bjtu-subNav dd.current .sub_nav {
	display: block;
}

.bjtu-subNav:before {
	content: '';
	width: 100%;
	height: 100%;
	background-color: #cce1fa;
	opacity: 0.8;
	filter: alpha(opacity=80);
	position: absolute;
	left: 0;
	top: 0;
	z-index: 0
}

.bjtu-subNav dd {
	position: relative;
	z-index: 3;
	text-align: left;
}

.bjtu-subNav dd>i {
	width: 33px;
	height: 33px;
	position: absolute;
	right: 0px;
	top: 0px;
}

.bjtu-subNav dd>i:before {
	content: '';
	position: absolute;
	width: 10px;
	height: 2px;
	background: #005bac;
	left: 0px;
	top: 15px;
}

.bjtu-subNav dd>i:after {
	content: '';
	position: absolute;
	width: 10px;
	height: 2px;
	background: #005bac;
	left: 0px;
	top: 15px;
	transform: rotate(90deg)
}

.bjtu-subNav dd:hover>i:after {
	display: none;
}

.bjtu-subNav a {
	color: #4c4c4c;
	padding: 5px 15px;
	display: block;
	line-height: 23px;
}

.bjtu-subNav a:hover {
	background-color: #669ccc;
	color: #fff;
}

.bjtu-header.currents {
	height: 60px;
	line-height: 60px;
	position: fixed;
	background: #005bac;
	box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4)
}

.bjtu-header.currents .bjtu-topNav,
.bjtu-header.currents .bjtu-nav::before {
	display: none;
}

.bjtu-header.currents .bjtu-top {
	width: auto;
}

.bjtu-header.currents .bjtu-logo {
	width: 160px;
	position: absolute;
	top: 0;
	left: 50%;
	margin-left: -600px;
	padding-top: 8px;
}

.bjtu-header.currents .bjtu-nav {
	height: 60px;
	line-height: 60px;
	width: 1200px;
	margin: 0 auto;
}

.bjtu-header.currents .bjtu-nav>ul {
	margin-left: 180px;
	width: auto;
	height: 60px;
}

.bjtu-header.currents .bjtu-nav li {
	background: none;
	height: 60px;
}

.bjtu-header.currents .bjtu-nav li>a,
.bjtu-header.currents .bjtu-nav ul li::after {
	height: 60px;
	line-height: 60px;
}

.bjtu-header.currents .bjtu-subNav {
	top: 60px;
}

.bjtu-subNav2 {
	left: -50%;
}

.bjtu-headerr.currents .nav ul li>a {}

.flipInY {
	-webkit-animation-name: flipInY;
	animation-name: flipInY;
	animation-duration: 0.4s;
	-webkit-animation-duration: 0.4s;

	animation-timing-function: ease-in-out;
	-webkit-animation-timing-function: ease-in-out;

	visibility: visible !important;
	display: block;
}


@keyframes flipInY {
	from {
		-webkit-transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
		transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
		-webkit-animation-timing-function: ease-in;
		animation-timing-function: ease-in;
		opacity: 0;
		transform: scaleX(0);
	}


	to {
		-webkit-transform: perspective(400px);
		transform: perspective(400px);
		opacity: 1;
		transform: scaleX(1);
	}
}

#ser {
	width: 0;
	overflow: hidden;
	display: inline-block;
	*display: inline;
	*zoom: 1;
	border-radius: 15px;
	vertical-align: middle;
	transition: all 0.35s ease-in-out
}

#ser.open {
	width: 200px;
	border: 1px solid #fff;
	background: none;
}

.bjtu-ser {
	width: 100%;
	height: 28px;
	line-height: 28px;
	z-index: 9999994;
	margin: 0 auto;
	position: relative;
}

.search input {
	position: absolute;
	height: 28px;
	line-height: 28px;
	color: #262626;
	border: none;
	background: none;
	top: 0px;
	padding-left: 0px;
}

.search input.notxt {
	color: #a4a4a4;
	padding: 0 0 0 7px;
	width: 82%;
}

.search input.notxt1 {
	position: absolute;
	width: 15%;
	height: 28px;
	right: 0;
	border: none;
	cursor: pointer;
	overflow: hidden;
	padding-right: 0;
	color: #fff;
	border: none;
	background: url(../../images/img2019/search.svg) no-repeat center;
	background-size: 16px auto
}

.header.current .mobile,
.header.current .logo {
	display: none;
}

.goTop {
	position: fixed;
	bottom: 40px;
	right: 20px;
	z-index: 9999999;
	color: #fff;
	text-align: center;
	font-size: 26px;
	transition: none;
	background-color: #2378c3;
	width: 50px;
	height: 50px;
	line-height: 50px;
	text-align: center;
	display: none;
}

.goTop:hover {
	color: #fff;
	background-color: #e46856;
}

/*手机端导航*/
.mobile {
	width: 100%;
	position: absolute;
	height: 42px;
	display: none;
	top: 60px;
	right: 0;
	z-index: 99
}

.mobile-inner-header {
	width: 100%;
	height: 42px;
	position: absolute;
	top: 0px;
	right: 0px;
	z-index: 2
}

.mobile-inner-header-icon {
	color: #ffffff;
	height: 40px;
	font-size: 25px;
	text-align: center;
	float: right;
	width: 40px;
	position: relative;
	-webkit-transition: background 0.5s;
	-moz-transition: background 0.5s;
	-o-transition: background 0.5s;
	transition: background 0.5s;
}

.mobile-inner-header-icon:hover {
	opacity: 0.8;
	cursor: pointer;
}

.mobile-inner-header-icon span {
	position: absolute;
	left: calc((100% - 25px) / 2);
	top: calc((100% - 1px) / 3);
	width: 25px;
	height: 2px;
	background-color: #fff;
}

/*.mobile-inner-header-icon span:nth-child(1){transform: translateY(4px) rotate(0deg);}
.mobile-inner-header-icon span:nth-child(2){transform: translateY(-4px) rotate(0deg);}
.mobile-inner-header-icon-click span:nth-child(1){animation-duration: 0.5s; animation-fill-mode: both;animation-name: clickfirst;}
.mobile-inner-header-icon-click span:nth-child(2){animation-duration: 0.5s; animation-fill-mode: both;animation-name: clicksecond;}
*/
.mobile-inner-header-icon-click {
	right: 10%;
}

.mobileLink {
	display: block;
	padding: 10px 0;
}

.mobileLink dd {
	line-height: 20px;
	text-align: center;
	font-size: 1.2rem;
	padding: 0 35px;
}

.mobileLink dd a {
	color: #fff;
	padding: 0 10px;
	display: inline-block;
	width: auto;
	position: relative;
	line-height: 24px;
	font-size: 12px;
}

.mobileLink dd a:first-child {}

.mobileLink a:before {
	opacity: 0.2;
}

.mobile-inner-header-icon {
	color: #fff;
	height: 31px;
	text-align: left;
	float: right;
	width: 50px;
	position: relative;
	cursor: pointer;
	margin-right: 10px;
	font-weight: bold;
	text-align: right;
}

.mobileLink a:last-child:before {
	display: none;
}

.mobile-inner-header-icon-out span {
	width: 22px;
	height: 2px;
	background-color: #fff;
	display: block;
}

.mobile-inner-header-icon-out span:nth-child(1) {
	animation-duration: 0.5s;
	animation-fill-mode: both;
	animation-name: outfirst;
}

.mobile-inner-header-icon-out span:nth-child(2) {
	animation-duration: 0.5s;
	animation-fill-mode: both;
	animation-name: outsecond;
}

.mobile-inner-header-icon-out span:nth-child(2) {
	animation-duration: 0.5s;
	animation-fill-mode: both;
	animation-name: outthird;
}

.mobile-inner-header-icon span:nth-child(1) {
	transform: translateY(4px) rotate(0deg);
}

.mobile-inner-header-icon span:nth-child(2) {
	transform: translateY(-4px) rotate(0deg);
}

.mobile-inner-header-icon span:nth-child(3) {
	transform: translateY(-4px) rotate(0deg);
}

.mobile-inner-header-icon-click span:nth-child(1) {
	animation-duration: 0.5s;
	animation-fill-mode: both;
	animation-name: clickfirst;
}

.mobile-inner-header-icon-click span:nth-child(2) {
	animation-duration: 0.5s;
	animation-fill-mode: both;
	animation-name: clicksecond;
}

.mobile-inner-header-icon-click span:nth-child(3) {
	animation-duration: 0.5s;
	animation-fill-mode: both;
	animation-name: clickthird;
}

@keyframes clickfirst {
	0% {
		transform: translateY(4px) rotate(0deg);

	}

	100% {
		transform: translateY(0) rotate(45deg);
	}
}

@keyframes clicksecond {
	0% {
		transform: translateY(-4px) rotate(0deg);
	}

	100% {
		transform: translateY(0) rotate(-45deg);
	}
}

@keyframes clickthird {
	0% {
		opacity: 0
	}

	100% {
		opacity: 0
	}
}

.mobile-inner-header-icon-out span:nth-child(1) {
	animation-duration: 0.5s;
	animation-fill-mode: both;
	animation-name: outfirst;
}

.mobile-inner-header-icon-out span:nth-child(2) {
	animation-duration: 0.5s;
	animation-fill-mode: both;
	animation-name: outsecond;
}

.mobile-inner-header-icon-out span:nth-child(3) {
	animation-duration: 0.5s;
	animation-fill-mode: both;
	animation-name: outthird;
}

@keyframes outfirst {
	0% {
		transform: translateY(0) rotate(-45deg);
	}

	100% {
		transform: translateY(-4px) rotate(0deg);
	}
}



@keyframes outsecond {
	0% {
		transform: translateY(0) rotate(45deg);
	}

	100% {
		transform: translateY(4px) rotate(0deg);
	}
}

@keyframes outthird {
	0% {
		transform: translateY(0) rotate(90deg);
	}

	100% {
		transform: translateY(12px) rotate(0deg);
	}
}

.mobile-inner-nav {
	width: 100%;
	position: absolute;
	top: -60px;
	left: 0px;
	padding-top: 120px;
	padding-bottom: 25px;
	display: none;
}

.mobile_bg02 {
	background: #00a2e6;
	background: -webkit-linear-gradient(left, #005bac, #1e7fd6);
	/* Safari 5.1 - 6.0 */
	background: -o-linear-gradient(right, #005bac, #1e7fd6);
	/* Opera 11.1 - 12.0 */
	background: -moz-linear-gradient(right, #005bac, #1e7fd6);
	/* Firefox 3.6 - 15 */
	background: linear-gradient(to right, #005bac, #1e7fd6);
	/* 标准的语法 */
	;
	opacity: 1;
	top: 0
}

.mobile-inner-nav a {
	display: inline-block;
	line-height: 45px;
	text-decoration: none;
	width: 100%;
	font-size: 1.6rem;
	-webkit-transition: all 0.5s;
	-moz-transition: all 0.5s;
	-o-transition: all 0.5s;
	transition: all 0.5s;
	position: relative;
	color: #fff;
}

.mobile-inner-nav li a:before,
.mobile_search:before {
	width: 100%;
	height: 1px;
	background-color: #fff;
	opacity: 0.2;
	position: absolute;
	left: 0;
	bottom: 0;
	content: '';
}

.mobile-inner-nav ul {
	margin: 0 auto;
	width: 80%;
}

.mobile-inner-nav li {
	position: relative;
	padding: 0 20px;
}

.mobile-inner-nav li a {
	text-indent: 15px;
}

.mobile-inner-nav li strong {
	color: #fff;
	position: absolute;
	right: 20px;
	top: 0;
	font-size: 2.5rem;
	cursor: pointer;
	width: 40px;
	height: 45px;
	text-align: center;
	line-height: 40px;
	-webkit-transition: all 0.5s;
	-moz-transition: all 0.5s;
	-o-transition: all 0.5s;
	transition: all 0.5s;
}

.mobile-inner-nav li strong.on {
	transform: rotate(90deg);
}

.mobile-inner-nav a {
	-webkit-animation-duration: 0.5s;
	animation-duration: 0.5s;
	-webkit-animation-fill-mode: both;
	animation-fill-mode: both;
	-webkit-animation-name: returnToNormal;
	animation-name: returnToNormal;
}

.mobile-inner-nav dd span.on {
	transform: rotate(45deg);
	position: absolute;
	color: #fff;
	font-size: 25px;
	width: 30px;
	height: 35px;
	text-align: center;
	right: 0px;
}

@-webkit-keyframes returnToNormal {
	from {
		opacity: 0;
		-webkit-transform: translate3d(0, 100%, 0);
		transform: translate3d(0, 100%, 0);
	}

	to {
		opacity: 1;
		-webkit-transform: none;
		transform: none;
	}
}

@keyframes returnToNormal {
	from {
		opacity: 0;
		-webkit-transform: translate3d(0, 100%, 0);
		transform: translate3d(0, 100%, 0);
	}

	to {
		opacity: 1;
		-webkit-transform: none;
		transform: none;
	}
}

.mobile_subNav {
	display: none;
	padding-left: 10px;
	opacity: 0.8
}

.mobile-inner-nav li dd {
	position: relative;
}

.mobile-inner-nav li span {
	position: absolute;
	color: #fff;
	font-size: 25px;
	width: 30px;
	height: 35px;
	text-align: center;
	right: 0px;
	cursor: pointer;
}

.mobile-inner-nav li dd a {
	font-size: 1.4rem;
	opacity: 0.6;
	height: 35px;
	line-height: 35px;
}

.mobile_search {
	clear: both;
	position: relative;
	height: 36px;
	margin: 10px auto 0;
	border-radius: 30px;
	overflow: hidden;
	width: 80%;
}

.mobile_search input.notxt {
	width: 90%;
	color: #fff;
	margin-left: 55px;
	border: none;
}

.mobile_search input.notxt1 {
	width: 55px;
	background-color: #fff;
	right: auto;
	left: 0;
	background: url(../../images/img2019/searchBtn.svg) no-repeat center center;
	border: none;
}

/*footer*/
.bjtu-wrapFooter {
	background: url(../../images/img2019/footer_bg.jpg) no-repeat top center #065eb1;
}

.bjtu-footer {
	width: 1200px;
	margin: 0 auto;
	padding: 45px 0;
}

.bjtu-footerLf {
	width: 29%;
	float: left;
	line-height: 36px;
	color: #fff;
}

.bjtu-footerLf span {
	display: block;
}

.bjtu-footerRt {
	width: 22%;
	float: right;
	color: #fff;
	line-height: 30px;
	padding-top: 20px;
}

.bjtu-footerLogo {
	height: 0;
	position: relative;
	margin: 0 auto;
	width: 314px;
}

.bjtu-footerLogo img {}


@media screen and (max-width:1386px) {

	.bjtu-top>div,
	.bjtu-nav>ul,
	.bjtu-footer,
	.bjtu-header.currents .bjtu-nav {
		width: 1000px;
	}

	.bjtu-footerLf {
		line-height: 1.5;
	}

	.bjtu-footerLf span {
		padding-bottom: 10px;
	}

	.bjtu-header.currents .bjtu-logo {
		margin-left: -500px;
	}

}

@media screen and (max-width:1020px) {

	.bjtu-top>div,
	.bjtu-nav>ul {
		width: auto;
		padding-left: 15px;
		padding-right: 15px;
	}

	.bjtu-wrapFooter {
		background-size: cover;
	}

	.bjtu-footer {
		width: auto;
		padding-left: 25px;
		padding-right: 25px;
	}
}

@media screen and (max-width:992px) {

	.bjtu-nav,
	.bjtu-topNav {
		display: none;
	}

	.mobile {
		display: block;
		top: 26px;
	}

	.bjtu-logo {
		width: 200px;
	}

	.bjtu-header {
		position: static;
	}

	.bjtu-footerLogo {
		width: 220px;
	}

	.bjtu-footerRt {
		padding-top: 0;
		line-height: 1.5;
	}



}

@media screen and (max-width:767px) {
	.bjtu-footer {
		width: auto;
		padding: 25px 15px;
	}

	.bjtu-footerLogo {
		height: auto;
		padding-bottom: 10px;
	}

	.bjtu-footerLf,
	.bjtu-footerRt {
		width: 100%;
		text-align: center;
	}

	.bjtu-footerLf span {
		display: inline-block;
	}

	.bjtu-footer {
		font-size: 12px;
	}
}

@media screen and (max-width:480px) {
	.mobile-inner-header-icon-click {
		right: 0
	}

	.mobile-inner-nav ul,
	.mobile_search {
		width: 100%;
	}

	.mobile-inner-nav a {
		font-size: 1.5rem;
	}

	.mobile-inner-nav {
		padding-top: 90px;
	}

	.bjtu-logo {
		width: 100px;
	}

	.mobile {
		top: 12px;
	}
}