* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', 'Roboto', 'Noto Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background-color: #f9fafc;
            color: #1e293b;
            line-height: 1.5;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
a:link {
	color: #999;
	text-decoration: none;
}
a:visited {
	color: #999;
	text-decoration: none;
}
a:hover {
	color: #990000;
	text-decoration: none;
}
a:active {
	color: #999;
	text-decoration: none;
}
        /* ========= 头部样式（含二级导航，文字对齐+半透背景） ========= */
        .header {
	box-shadow: 0 2px 12px rgba(0,0,0,0.05);
	position: sticky;
	top: 0;
	z-index: 100;
	border-top-width: 5px;
	border-top-style: solid;
	border-top-color: #192636;
	background-color: #ffffff;
	background-image: url(../images/ban_bj.jpg);
	background-repeat: no-repeat;
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;  /* 强制LOGO和导航同一行，导航可换行 */
            padding: 16px 24px;
        }
		.logo{witdh:326px; height:80px;
	background-image: url(../images/logo.png);
	background-repeat: no-repeat;
}
        .logo h1 {
            font-size: 1.6rem;
            color: #0a3a5c;
            font-weight: 700;
        }
        .logo p {
            font-size: 0.75rem;
            color: #2c6e9e;
            margin-top: 4px;
        }

        /* 桌面导航样式（文字对齐 + 二级半透背景） */
        .nav-menu {
            display: flex;
            flex-wrap: wrap;      /* 允许换行 */
            gap: 0;
            row-gap: 8px;        /* 换行时上下间距 */
            list-style: none;
            position: relative;
        }
        .nav-item {
            position: relative;
        }
        .nav-item > a {
            text-decoration: none;
            font-weight: 500;
            color: #1e293b;
            font-size: 1rem;
            padding: 8px 12px;    /* 缩小左右内边距，从16px改为12px */
            transition: color 0.2s;
            display: block;
            white-space: nowrap;
        }
        .nav-item > a:hover, .nav-item > a.active {
            color: #1e6f9f;
        }
        /* 二级菜单（半透明背景 + 毛玻璃） */
        .submenu {
            position: absolute;
            top: 100%;
            left: 0;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            min-width: 200px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border-radius: 12px;
            padding: 8px 0;
            list-style: none;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.2s ease;
            z-index: 200;
        }
        .nav-item:hover .submenu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .submenu li a {
            display: block;
            padding: 8px 16px;
            color: #334155;
            text-decoration: none;
            font-size: 0.9rem;
            transition: background 0.2s;
        }
        .submenu li a:hover {
            background: #f1f5f9;
            color: #1e6f9f;
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            font-size: 1.6rem;
            background: none;
            border: none;
            cursor: pointer;
            color: #0a3a5c;
        }

        /* 移动端样式（二级菜单无半透，纯白背景） */
        @media (max-width: 900px) {
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0;
                padding: 16px 0;
                background: white;
                border-top: 1px solid #e2e8f0;
                flex-wrap: nowrap; /* 移动端不换行 */
                row-gap: 0;
            }
            .nav-menu.show {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .nav-item {
                width: 100%;
                border-bottom: 1px solid #f0f2f5;
            }
            .nav-item > a {
                padding: 12px 16px;
                display: flex;
                justify-content: space-between;
                align-items: center;
                white-space: normal;
            }
            .submenu {
                position: static;
                background: #f9fafc;
                backdrop-filter: none;
                box-shadow: none;
                padding-left: 24px;
                max-height: 0;
                overflow: hidden;
                opacity: 1;
                visibility: visible;
                transform: none;
                transition: max-height 0.3s ease;
                border-radius: 0;
            }
            .nav-item.open .submenu {
                max-height: 500px;
            }
            .submenu li a {
                padding: 10px 16px;
                font-size: 0.85rem;
            }
            .nav-item > a i.fa-chevron-down {
                transition: transform 0.2s;
            }
            .nav-item.open > a i.fa-chevron-down {
                transform: rotate(180deg); 
            }   
        }
    
        /* ========= Banner 轮播图（缩小至正常动画） ========= */
        .banner-carousel {
            position: relative;
            width: 100%;
            height: 65vh;
            min-height: 380px;
            overflow: hidden;
        }
        .carousel-slides {
            position: relative;
            width: 100%;
            height: 100%;
        }
        .carousel-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            opacity: 0;
            transition: opacity 1s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: white;
        }
        .carousel-slide.active {
            opacity: 1;
            z-index: 1;
        }
        /* 缩小至正常动画：初始 scale(1.05) -> 过渡到 scale(1) */
        .carousel-slide.bg-slide {
            transform: scale(1.05);
            transition: transform 1.2s ease-out;
        }
        .carousel-slide.bg-slide.active {
            transform: scale(1);
        }
        .slide-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            padding: 0 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .slide-content h2 {
            font-size: 3rem;
            margin-bottom: 1rem;
        }
        .slide-content p {
            font-size: 1.2rem;
            opacity: 0.95;
        }
        .carousel-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(0,0,0,0.5);
            color: white;
            border: none;
            font-size: 2rem;
            cursor: pointer;
            padding: 8px 16px;
            border-radius: 40px;
            transition: 0.2s;
            z-index: 10;
        }
        .carousel-btn:hover {
            background: rgba(0,0,0,0.8);
        }
        .btn-prev {
            left: 20px;
        }
        .btn-next {
            right: 20px;
        }
        .carousel-dots {
            position: absolute;
            bottom: 20px;
            left: 0;
            right: 0;
            display: flex;
            justify-content: center;
            gap: 12px;
            z-index: 10;
        }
        .dot {
            width: 12px;
            height: 12px;
            background: rgba(255,255,255,0.6);
            border-radius: 50%;
            cursor: pointer;
            transition: 0.2s;
        }
        .dot.active {
            background: white;
            transform: scale(1.2);
        }

        @media (max-width: 768px) {
            .banner-carousel {
                height: 50vh;
                min-height: 300px;
            }
            .slide-content h2 {
                font-size: 2rem;
            }
            .slide-content p {
                font-size: 1rem;
            }
        }

        /* ========= 通用标题 ========= */
        .section-title {
            font-size: 2rem;
            font-weight: 600;
            text-align: center;
            margin-bottom: 2rem;
            color: #0a3a5c;
            position: relative;
            padding-bottom: 12px;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 70px;
            height: 3px;
            background: #1e6f9f;
            border-radius: 3px;
        }

        /* 三列布局 (30% 35% 35%) */
        .three-col-row {
            display: grid;
            grid-template-columns: 30% 35% 35%;
            gap: 30px;
            margin: 48px 0;
        }
        .info-card {
            background: white;
            border-radius: 24px;
            box-shadow: 0 12px 24px -12px rgba(0,0,0,0.1);
            overflow: hidden;
            transition: transform 0.2s, box-shadow 0.2s;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .info-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 28px -12px rgba(0,0,0,0.15);
        }
        .card-header {
            padding: 20px 24px 0 24px;
            font-size: 1.6rem;
            font-weight: 600;
            color: #0a3a5c;
            border-bottom: 2px solid #e2e8f0;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .card-header i {
            color: #1e6f9f;
            font-size: 1.6rem;
        }
        .card-body {
            padding: 8px 24px 24px 24px;
            flex: 1;
        }

        /* 亮点聚焦 80x80图标 */
        .highlights-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .highlight-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }
				.h_icon_bjc5{background-color:#731681; background-image:url(../images/ico_5.png)}
				.h_icon_bjc4{background-color:#f36700; background-image:url(../images/ico_4.png)}
				.h_icon_bjc3{background-color:#0cb3f0; background-image:url(../images/ico_3.png)}
		.h_icon_bjc2{background-color:#e11016; background-image:url(../images/ico_6.png)}
		.h_icon_bjc1{background-color:#22a95c; background-image:url(../images/ico_2.png)}
        .highlight-icon {
            width: 80px;
            height: 80px;
           
            border-radius: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            color: #1e6f9f;
            flex-shrink: 0;
        }
        .highlight-text h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #0f3b5c;
            margin-bottom: 6px;
        }
        .highlight-text p {
            color: #475569;
            font-size: 0.9rem;
        }

        /* 学院新闻列表带图片 */
        .news-list {
            list-style: none;
        }
        .news-item {
            display: flex;
            gap: 16px;
            margin-bottom: 10px;
            padding-bottom: 16px;
            border-bottom: 1px solid #edf2f7;
        }
        .news-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .news-img {
            width: 100px;
            height: 78px;
            border-radius: 5px;
            object-fit: cover;
            background-color: #e2e8f0;
            flex-shrink: 0;
        }
        .news-content {
            flex: 1;
        }
        .news-title {
            font-weight: 600;
            color: #1e293b;
            text-decoration: none;
            font-size: 0.95rem;
            line-height: 1.4;
            display: block;
        }
        .news-title:hover {
            color: #1e6f9f;
        }
        .news-date {
            font-size: 0.7rem;
            color: #6c7a91;
            margin-top: 6px;
            display: block;
        }

        /* 学院动态左侧日期 */
        .dynamic-list {
            list-style: none;
        }
        .dynamic-item {
            display: flex;
            gap: 16px;
            margin-bottom: 20px;
            padding-bottom: 18px;
            border-bottom: 1px solid #edf2f7;
        }
        .dynamic-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .dynamic-date {
            background: #f1f5f9;
            border-radius: 16px;
            text-align: center;
            padding: 8px 10px;
            min-width: 65px;
            flex-shrink: 0;
        }
        .dynamic-day {
            font-size: 1.6rem;
            font-weight: 700;
            color: #0f3b5c;
            line-height: 1;
        }
        .dynamic-ym {
            font-size: 0.7rem;
            color: #5b6e8c;
            margin-top: 4px;
        }
        .dynamic-content {
            flex: 1;
        }
        .dynamic-title {
            font-weight: 600;
            color: #1e293b;
            text-decoration: none;
            font-size: 0.95rem;
            display: block;
        }
        .dynamic-title:hover {
            color: #1e6f9f;
        }
        .dynamic-desc {
            font-size: 0.8rem;
            color: #5b6e8c;
            margin-top: 4px;
        }

        .btn-more {
            display: inline-block;
            margin-top: 16px;
            color: #1e6f9f;
            font-weight: 500;
            text-decoration: none;
            font-size: 0.9rem;
        }

        /* 科研动态四卡片 */
        .research-cards-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin: 48px 0;
        }
        .card {
            background: white;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 12px 24px -12px rgba(0,0,0,0.1);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: 0 20px 28px -12px rgba(0,0,0,0.15);
        }
        .card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
        }
        .card-content {
            padding: 20px 24px 24px;
        }
        .card-content h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: #0f3b5c;
        }
        .card-content p {
            color: #475569;
            margin-bottom: 16px;
            line-height: 1.5;
            font-size: 0.95rem;
        }
        .card-link {
            color: #1e6f9f;
            font-weight: 500;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
        }

        /* 响应式 */
        @media (max-width: 1000px) {
            .research-cards-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .three-col-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .research-cards-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .highlight-icon {
                width: 70px;
                height: 70px;
                font-size: 2rem;
            }
        }

        /* 底部滚动图片条（新版：每张300px，1秒滚动，鼠标悬浮暂停放大） */
        .scroll-gallery {
            width: 100%;
            background: #0f172a;
            padding: 40px 0;
            margin: 0px 0 0;
        }
        .gallery-wrapper {
            width: 100%;
            overflow: hidden;
            position: relative;
        }
        .image-strip {
            display: flex;
            flex-wrap: nowrap;
            transition: transform 0.35s ease-out;
            will-change: transform;
        }
        .strip-item {
            flex: 0 0 300px;          /* 固定宽度300px */
            height: 200px;
            background-size: cover;
            background-position: center;
            background-color: #2d3e5a;
            transition: transform 0.25s ease, box-shadow 0.2s;
            cursor: pointer;
        }
        .strip-item:hover {
            transform: scale(1.05);
            z-index: 2;
            box-shadow: 0 10px 20px rgba(0,0,0,0.4);
        }
        .gallery-caption {
            text-align: center;
            margin-top: 20px;
            color: #cbd5e6;
            font-size: 0.9rem;
        }
        .info-tip {
            text-align: center;
            margin-top: 28px;
            color: #cbd5e6;
            font-size: 0.85rem;
        }
        .info-tip i {
            font-style: normal;
            background: #1e293b;
            padding: 4px 12px;
            border-radius: 30px;
        }
        @media (max-width: 768px) {
            .strip-item {
                flex: 0 0 260px;
                height: 170px;
            }
        }

        /* 页脚 */
        .footer {
            background: #0a2b4e;
            color: #cbd5e6;
            padding: 48px 0 24px;
            margin-top: 0px;
        }
        .footer .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 32px;
        }
        .footer-col {
            flex: 1;
            min-width: 180px;
        }
        .footer-col h4 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .footer-col p, .footer-col a {
            color: #cbd5e6;
            text-decoration: none;
            line-height: 1.8;
            font-size: 0.9rem;
        }
        .footer-col a:hover {
            color: white;
        }
        .copyright {
            width: 100%;
            text-align: center;
            border-top: 1px solid #2c4a6e;
            margin-top: 32px;
            padding-top: 24px;
            font-size: 0.8rem;
        }
        @media (max-width: 800px) {
            .footer .container {
                flex-direction: column;
                gap: 28px;
            }
        }
/* ========= 学术活动板块样式 ========= */
    /* 学术动态卡片样式（一行四列） */
.academic-cards-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin: 48px 0;
}

.academic-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
    padding: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    border-left: 4px solid #1e6f9f;
}

.academic-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.12);
}

.academic-date {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #eef2f6;
}

.academic-day {
    font-size: 2rem;
    font-weight: 700;
    color: #1e6f9f;
    line-height: 1;
}

.academic-month {
    font-size: 0.9rem;
    color: #6c7a91;
}

.academic-time {
    font-size: 0.85rem;
    color: #1e6f9f;
    font-weight: 500;
    margin-bottom: 12px;
    background: #eef2ff;
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
}

.academic-title {
    font-size: 1rem;
    font-weight: 600;
    color: #0f3b5c;
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.academic-speaker {
    font-size: 0.85rem;
    color: #475569;
    margin-bottom: 8px;
    line-height: 1.4;
}

.academic-location {
    font-size: 0.75rem;
    color: #6c7a91;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.academic-link {
    color: #1e6f9f;
    font-weight: 500;
    text-decoration: none;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    transition: color 0.2s;
}

.academic-link:hover {
    color: #0f3b5c;
    text-decoration: underline;
}

/* 响应式：平板显示两列，手机显示一列 */
@media (max-width: 1000px) {
    .academic-cards-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .academic-cards-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* show */
.ban_show_l3{ padding-top:210px;
	width: 100%;
	height: 90px;
	background-image: url(../images/s_bj1.jpg);
	background-repeat: no-repeat;
	background-size: cover;
}
.ban_show_b{ 
	width: 100%;
	height: 300px;
	background-image: url(../images/s_bj.jpg);
	background-repeat: no-repeat;
	background-size: cover;
}
.ban_show_1{width:1200px;height:90px; padding-top:220px }
.ban_show_2{width:300px;height:80px; background-color:#0a2b4e;color:#fff; padding-top:10px; text-align:center;}
.show_txt{font-family: "微软雅黑", "Microsoft YaHei";
	font-size: 26px;
	font-weight: bold; line-height:70px;}
.show_main{width:1200px; min-height:600px;display: flex; }
.show_m_l{ padding-top:20px; 
	width: 300px; height:350px;
	background-color: #EAEAEA;
background: linear-gradient(-45deg,transparent 20px,#EAEAEA 0);

	          
}
.list_l_bj{
	background-image: url(../images/list_l_bj.png);
	background-repeat: no-repeat;
	background-position: left top;
}
.sub-nav .show_li_1 {
    margin: 5px 0; font-size:16px;
    padding: 8px 12px ;
    transition: all 0.3s;
}
.sub-nav .show_li_1.on {
   
    border-right: 3px solid #0a2b4e;
}
.sub-nav .show_li_1.on a {
    color: #192636 ;
    font-weight: bold;
}
.sub-nav .show_li_1 a {
    text-decoration: none;  font-size:16px; padding-left:90px;
    color: #000;
    display: block;
}
.show_li_1:active {
    transform: scale(0.98);
    transition: transform 0.1s;
}
.show_li_1:hover {
    transform: scale(0.98);
    transition: transform 0.1s;
}
.show_li_1 a:active {
    color: #0056b3;
}
/*.show_li_1{ font-size:16px; line-height:40px; padding-left:80px; height:40px;}
.show_li_1 a:link{color:#333}
.show_li_1 a:hover{color:#0d53a5;width:200px;height:40px; background-color:#fff}  */
.show_m_r{width:72%;min-height:500px; padding-left:30px; padding-top:20px}
.show_bt_h3{
	font-family: "微软雅黑", "Microsoft YaHei";
	font-size: 24px; text-align:center;
	color: #0a2b4e;
	font-weight: bold; padding-top:20px; padding-bottom:20px;
}
.show_txt1{font-family:"宋体";
	font-size: 14px;
	color:#666; line-height:25px;
    text-align: justify;
    text-justify: inter-ideograph;
	}
/*list*/
.list_bt_txt{font-family:"宋体";
	font-size: 15px;
	color:#ccc; line-height:40px;}
.list_bt{width:90%;height:40px; line-height:40px; }	
.list_bt1{width:20%;height:40px; line-height:40px;}	
.list_bt2{width:10%;height:40px; line-height:30px; font-size:12px;}	
.list_bt a:link{font-family: "微软雅黑", "Microsoft YaHei";
	font-size: 16px;
	color: #003;
	text-decoration: none;
}
.list_bt a:hover{
	color: #C00;
}
.xzgd_t{
	color: #999
}	
.zxgd_img{ width:100px;height:120px;}
.zxgd_w{width:220px;height:150px; padding-left:10px; padding-right:10px; text-align: justify;
    text-justify: inter-ideograph;}
.zxgd_co{
	color: #666; font-size:12px;
}
.zxgd_txt{
	font-size: 14px;
	font-weight: bolder;
	color: #F60;
}
.zxgd_m{width:360px;height:150px;}
.list_in{ padding-left:22px; font-family:"宋体"; font-size:15px;
	height: 37px; padding-top:3px;
	line-height: 30px;
	color: #666;
	background-image: url(../images/ico_in.png);
	background-repeat: no-repeat;
	background-position: left ; margin-bottom:10px;
}
.list_in a:link{
	font-size: 15px;
	color: #999;
	text-decoration: none;
}
.list_in a:hover{
	font-size: 15px;
	color: #036
}
.fl{float:left}
.md{margin:0 auto}
.pb20{padding-bottom:30px;}
.txt_c{text-align:center; font-size:14px; color:#999}
.cc a:link{
	color: #999;
	font-size: 14px;
	text-decoration: none;
}
.cc a:hover{color:#C00}
.xt_bo{
	border-bottom-width: 1px;
	border-bottom-style: solid;
	border-bottom-color: #CCC;
}
.pl20{ padding-left:20px;}