html,
body {
	min-width: 1300px;
}

.header {
	height: 300px;
	width: 100%;
	background-image: url("/en/new/img/nban2.jpg");
	background-size: 100% 100%;
	position: relative;
}

.montage-top {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 50%;
	background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0));
	z-index: 2;
	padding-top: 20px;
}

.montage-bottom {
	position: absolute;
	bottom: 0;
	left: 0;
	width: 100%;
	height: 40%;
	background: linear-gradient(to top, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0));
	z-index: 2;
}

.public-width {
	width: 1200px;
}

.heard-searc {
	/* width: 150px; */
	height: 40px;
}

.heard-line {
	width: 2px;
	height: 100%;
	background-color: white;
	margin: 0 20px;
}
.heard-home {
	font-size: 20px;
	color: white;
}

.heard-title {
	/*width: 300px;*/
}

.heard-nav {
	height: 55px;
        margin-left: 20px;
	
}

.bodyer {
	/* height: 1748px; */
}

.footer {
	height: 355px;
}

.menu-box {
	width: 30%;
	height: 100%;
	margin-top: 40px;
}

.menu-item {
	height: 40px;
	width: 80%;
	margin: 10px;
	padding: 5px 0 5px 15px;
	font-size: 20px;
	color: #83868c;
	cursor: pointer;
}

.menu-item:hover {
	color: #005dab;
	font-weight: bold;
}

.menu-item-active {
	/* height: 40px;
		width: 80%;
		margin: 10px;
		padding: 5px 0 5px 15px;
		font-size: 20px; */
	border-left: 5px solid #005dab;
	color: #005dab;
	font-weight: bold;
}

/* 非第一项 */
.text-box li:not(:first-child) {
	display: none;
}

.text-box {
	width: 70%;
	height: 100%;
	padding: 40px;
	font-size: 18px;
	font-weight: 400;
	line-height: 30px;
	text-indent: 2em;
	font-family: "Times New Roman", Times, serif;
	word-wrap: break-word;
}

.input-box {
	display: flex;
	/* width: 240px; */
	height: 31px;
	position: relative;
	/* background: rgba(255, 255, 255, 0.8); */
	border-radius: 25px;
	border: none;
	align-content: center;
}

.input-box::before {
	content: "";
	transition: all 0.3s ease-out 0s;
	width: 30%;
	top: 0;
	left: 0;
	bottom: 0;
	background: rgba(255, 255, 255, 0.5);
	border-radius: 25px;
	position: absolute;
	opacity: 0;
	z-index: -1;
}

.input-box:hover::before {
	width: 100%;
	opacity: 1;
	border-radius: 25px;
}

.input-area {
	line-height: 31px;
	background: none;
	text-indent: 10px;
	color: #fff;
	border: none;
	outline: none;

}

.hidden-input {
	/* visibility:hidden; */
	display: none;
}

.show-input {
	/* visibility:visible; */
	display: block;
}
@media screen and (min-width: 2000px) {  
  /* 在这里放置你的样式规则 */  
	.public-width {
		width: 1800px !important;
	}
	.menu-box {
		width: 25% !important;
	}
	.text-box {
		width: 75% !important;
	}
        .Academics {
             width: 1500px !important;
        }
}


.Academics{
                width: 1200px;
                margin:0 auto;
                padding: 30px 0px;
                overflow: hidden;
            }
            .Academics .A_left{
                width: 20%;
                float: left;
            }
            .Academics .A_left .bt{
                width: 100%;
               /* height: 65px;*/
                border-bottom: 3px solid #005dab;
            }
            .Academics .A_left .bt p{
                line-height: 45px;
                font-size: 2.6rem;
                font-family: "sou_Italic";
                color: #005dab;
                font-style: italic;
            }
            .Academics .A_right{
                width: 75%;
                float: right;
            }
            .Academics .A_right ul{
                display: flex;
                justify-content:space-between;
                flex-wrap:wrap;
            }
            .Academics .A_right ul li{
                width: 48.5%;
                margin-bottom:1rem;
            }
            .Academics .A_right ul li a{
                display: flex;
                justify-content: space-between;
                background: rgb(242 248 253);
                padding: 1rem 1.375rem;
                align-items: center;
                transition: all 0.4s ease 0s;
                border-left: 2px solid #005dab;
            }
            .Academics .A_right ul li a font{
                color: rgb(50, 50, 50);
                line-height: 1.375rem;
            }
            .Academics .A_right ul li a span{
                font-family: 宋体;
                font-size: 20px;
                color: rgb(153, 153, 153);
                font-weight: bold;
            }
            .Academics .A_right ul li a:hover {
                box-shadow: rgba(0, 0, 0, 0.3) 0px 0px 7px;
            }
            .Academics .A_left ul li a{
                display: block;
                padding: 0 0.5rem;
                position: relative;
                transition: 0.4s;
                border-bottom: 1px solid #e3e3e3;
            }
            .Academics .A_left ul li a font {
                width: 100%;
                font-size: 1rem;
                line-height: 1.5rem;
                padding: 1.1rem 0px;
                display: block;
                transition: all 0.4s ease 0s;
                font-family: sou_regular;
            }

            .Academics .A_left ul li a span {
                font-size: 16px;
                color: rgb(153, 153, 153);
                padding: 1.4rem 0.5rem;
                position: absolute;
                top: 0px;
                right: 0rem;
                transition: all 0.4s ease 0s;
            }
            .Academics .A_left ul .liactive a{
                color: #005dab;
                font-weight: bold;
                font-style: italic;
            }
            .Academics .A_left ul .liactive{
                border-bottom: 1px solid #005dab;
            }