/* 重置浏览器样式 */
@import url('/DFS/template/4254/images/reset.css');

.warp {
	width: 1200px;
	margin: 0 auto;
}

/* 页面头部 */
.g-hd {
	background-color: #006ac8;
}

.g-hd .warp {
	position: relative;
}

.g-hd .lang {
	position: absolute;
	right: 0px;
	color: #fff;
	display: flex;
	align-items: center;
	top: 0px;
	height: 25px;
}

.g-hd .lang a {
	display: inline-block;
	color: #fff;
	padding: 0px 3px;
	padding-top: 4px;
}

.hd-logo {
	height: 130px;
	line-height: 130px;
}

.hd-logo .logo {
	display: inline-block;
}

.hd-logo .logo-nju {
	height: 77px;
	margin: 0 40px 0 0;
}

.hd-logo .logo span {
	display: inline-block;
	width: 0;
	height: 77px;
	vertical-align: middle;
}

.hd-logo .logo span::after {
	content: "";
	width: 1px;
	height: 41px;
	background-color: #ffffff;
	position: absolute;
	right: 20px;
	top: 18px;
}

.hd-logo .search form {
	width: 350px;
	height: 40px;
	top: 45px;
}

.hd-logo .search input[type="text"] {
	width: 350px;
	height: 40px;
	color: #7da7dc;
	background-color: #ffffff;
	opacity: 0.89;
	right: 0;
	top: 0;
	box-sizing: border-box;
	padding: 0 55px 0 15px;

}

.hd-logo .search input[type="text"]::placeholder {
	color: #7da7dc;
}

.hd-logo .search input[type="submit"] {
	width: 50px;
	height: 40px;
	cursor: pointer;
	background-color: #005bb5;
	background-image: url(/DFS/template/4254/images/cpy_4.png);
	background-size: 22px;
	background-position: center;
	background-repeat: no-repeat;
	right: 0;
	top: 0;
}

.hd-logo .logo-physics {
	/* height: 45px; */
	height: 55px;
}

.hd-nav {
	height: 60px;
	line-height: 58px;
	background-color: #005bb5;
	box-sizing: border-box;
	border-bottom: solid 2px #ffb308;
	font-size: 0;
}

.hd-nav .item {
	display: inline-block;
	vertical-align: middle;
	position: relative;
	font-size: 18px;
	width: 9%;
	text-align: center;
	transition: ease-in 0.5s;
}

.hd-nav .item:hover {
	font-weight: bold;
	background-color: #ffb308;
}

.hd-nav .item a {
	color: #ffffff;
	display: inline-block;
}

.hd-nav .nav-list {
	background-color: rgba(0, 0, 0, 0.5);
	position: absolute;
	left: 0;
	top: 60px;
	line-height: 43px;
	font-size: 16px;
	font-weight: normal;
	padding: 0 10px;
	max-height: 0;
	overflow: hidden;
	transition: max-height linear 0.5s;
	z-index: 9;
}

.hd-nav .item:hover .nav-list {
	max-height: 450px;
}

.hd-nav .nav-list a {
	width: 100%;
	border-bottom: solid 1px #a7acad;
	white-space: nowrap;
}

.hd-nav .nav-list a:last-child {
	border: 0;
}

/* 页面头部 */


/* 页面内容 */
.g-mn {
	min-height: 200px;
}

/* 页面内容 */


/* 页面底部 */
.g-ft {
	text-align: center;
	background-image: url(/DFS/template/4254/images/cpy_1.png);
	background-color: #404040;
}

.ft-link {
	height: 67px;
	line-height: 67px;
}

.ft-link a {
	color: #d5d5d5;
	display: inline-block;
	margin: 0 20px;
}

.ft-info {
	height: 57px;
	line-height: 57px;
	border-top: solid 1px rgba(255, 255, 255, 0.16);
}

.ft-info span {
	color: #a2a2a2;
	vertical-align: middle;
	margin: 0 3px;
}

/* 页面底部 */


@media screen and (max-width: 600px) {

	html {
		font-size: 62.5%;
	}

	body {
		font-size: 1.4rem;
	}

	.warp {
		width: 100%;
		margin: 0;
		box-sizing: border-box;
		padding: 0 1.25rem;
	}

	/* 头部 */
	.hd-logo {
		display: flex;
		flex-wrap: wrap;
		line-height: unset;
	}

	.hd-logo .logo,
	.hd-logo .search {
		width: 100%;
	}

	.hd-logo .logo {
		height: auto;
		line-height: 1rem;
		text-align: center;
		padding: 1rem 0 0;
	}

	.hd-logo .logo img {
		width: 40%;
		height: auto;
		margin: 0 1rem;
	}

	.hd-logo .logo span {
		display: none;
	}

	.hd-logo .search form {
		width: 80%;
		top: 0;
		float: unset;
		margin: 0 auto;
	}

	.hd-logo .search input[type="text"] {
		width: 100%;
	}

	/* 导航 */
	.hd-nav .warp {
		padding: 0;
	}

	.hd-nav {
		position: fixed;
		width: 60vw;
		height: 100vh;
		overflow-y: scroll;
		line-height: 3.6rem;
		left: -60vw;
		top: 0;
		z-index: 15;
		transition: ease-in 0.5s;
		box-sizing: border-box;
		padding: 0 0 2rem;
	}

	.hd-nav.sel {
		left: 0;
	}

	/* 导航按钮 */
	.nav-btn {
		position: fixed;
		right: 0;
		top: 60vh;
		width: 5rem;
		height: 5rem;
		background-color: rgba(0, 0, 0, 0.5);
		border-radius: 3px 0 0 3px;
		background-size: 3.5rem;
		background-position: center;
		background-repeat: no-repeat;
		background-image: url(/DFS/template/4254/images/cpy_5.png);
	}

	.hd-nav .item-hd {
		width: 100%;
		line-height: 6rem;
		box-sizing: border-box;
		padding: 0 1rem;
		font-size: 2rem;
		color: #ffffff;
		border-bottom: solid 2px #ffb308;
		text-align: left;
		margin: 0 0 1rem;
	}

	.hd-nav .item {
		width: 100%;
		box-sizing: border-box;
		padding: 0 1rem;
		text-align: left;
		line-height: 3.2rem;
	}

	.hd-nav .item a {
		font-size: 1.8rem;
	}

	.hd-nav .item:hover {
		background-color: transparent;
	}

	.hd-nav .nav-list {
		position: relative;
		background-color: transparent;
		line-height: 3.2rem;
		left: 0 !important;
		top: 0;
	}

	.hd-nav .nav-list a {
		height: 3.2rem;
		line-height: 3.2rem;
		font-size: 1.6rem;
		border-bottom: 0;
	}



	/* 底部 */
	.ft-link {
		height: auto;
		font-size: 1rem;
		line-height: 2.2rem;
		padding: 1rem 0;
		display: flex;
		justify-content: space-around;
		align-items: center;
		flex-wrap: wrap;
	}

	.ft-link a {
		margin: 0;
		flex: 0 1 25%;
	}

	.ft-info {
		height: auto;
		font-size: 1rem;
		line-height: 2.2rem;
		padding: 0.5rem 0;
	}

	.ft-info span {
		display: inline-block;
		width: 100%;
	}

}