* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
        }
        
        :root {
            --primary: #0056b3;
            --primary-dark: #003d82;
            --primary-light: #e6f0ff;
            --secondary: #0d8a72;
            --accent: #d4af37;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --white:#ffffff;
        }
        
        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 顶部导航 */
        .top-bar {
            background: linear-gradient(90deg, var(--primary), var(--primary-dark));
            color: white;
            padding: 8px 0;
            font-size: 14px;
        }
        
        .top-bar-content {
            display: flex;
            justify-content: space-between;
        }
        
        .top-links a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .top-links a:hover {
            color: white;
        }
        
        /* 主导航 */
        .main-header {
            background-color: white;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
        }
        
        .logo-icon {
            background: var(--primary);
            color: white;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-right: 15px;
        }

        .logo-img{
            width: 100px;
            height: 100px;
            margin-right: 15px;
        } 
        .logo-img img{width:100%;height:auto;}   
        .logo-text {
            line-height: 1.2;
            text-align: justify;
        }
        
        .logo-text h1 {
            font-size: 24px;
            color: var(--primary);
            font-weight: 700;
            letter-spacing: 0.15em;
        }
        
        .logo-text p {
            font-size: 10px;
            color: var(--gray);
            font-weight: 500;
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
        }
        
        .nav-menu li {
            position: relative;
        }
        
        .nav-menu a {
            display: block;
            padding: 12px 20px;
            color: var(--dark);
            text-decoration: none;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s;
            position: relative;
        }
        
        .nav-menu a:hover, 
        .nav-menu a.active {
            color: var(--primary);
        }
        
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 3px;
            background: var(--primary);
            transition: all 0.3s;
            transform: translateX(-50%);
        }
        
        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            width: 80%;
        }
        
        .search-box {
            display: flex;
            margin-left: 20px;
        }
        
        .search-box input {
            padding: 10px 15px;
            border: 1px solid #ddd;
            border-radius: 30px 0 0 30px;
            width: 200px;
            outline: none;
        }
        
        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 10px 18px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .search-box button:hover {
            background: var(--primary-dark);
        }
        
        /* 主体内容 - 轮播图+通知公告 */
        .main-content {
            display: flex;
            gap: 30px;
            margin: 30px auto;
        }
        
        .slider-container {
            flex: 7;
            position: relative;
            height: 414px;
            overflow: hidden;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        .slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1s ease-in-out;
            background-size: cover;
            background-position: center;
        }
        
        .slide.active {
            opacity: 1;
        }
        
        .slide-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 30, 80, 0.6);
        }
        
        .slide-content {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 30px;
            color: white;
        }
        
        .slide-content h2 {
            font-size: 32px;
            margin-bottom: 15px;
            font-weight: 700;
            text-shadow: 0 2px 10px rgba(0,0,0,0.3);
            line-height: 1.3;
        }
        
        .slide-content p {
            font-size: 16px;
            max-width: 600px;
        }
        
        .slider-nav {
            position: absolute;
            bottom: 20px;
            right: 20px;
            display: flex;
        }
        
        .slider-dot {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            margin: 0 8px;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .slider-dot.active {
            background: white;
            transform: scale(1.2);
        }
        
        /* 通知公告 */
        .notice-container {
            flex: 5;
            background: white;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        
        .notice-header {
            background: linear-gradient(90deg, var(--primary), var(--primary-dark));
            color: white;
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .notice-header h2 {
            font-size: 22px;
            display: flex;
            align-items: center;
        }
        
        .notice-header h2 i {
            margin-right: 10px;
            color: var(--accent);
            font-size:24px
        }
        
        .more-link-w {
            color: white;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .more-link-w:hover {
            color: var(--accent);
        }
        
        .notice-list {
            flex: 1;
            padding: 20px;
            overflow-y: auto;
            max-height: 340px;
        }
        
        .notice-item {
            padding: 15px 0;
            border-bottom: 1px dashed #eee;
            display: flex;
            align-items: center;
            transition: all 0.3s;
        }
        
        .notice-item:hover {
            background-color: var(--primary-light);
            border-radius: 5px;
            transform: translateX(5px);
        }
        
        .notice-date {
            min-width: 80px;
            text-align: center;
            margin-right: 15px;
            background: var(--primary-light);
            padding: 8px;
            border-radius: 5px;
            font-weight: 600;
            color: var(--primary);
        }
        
        .notice-title {
            flex: 1;
            font-size: 16px;
        }
        
        .notice-title a {
            color: var(--dark);
            text-decoration: none;
            transition: all 0.3s;
            display: block;
        }
        
        .notice-title a:hover {
            color: var(--primary);
        }
        
        .new-badge {
            background: var(--accent);
            color: white;
            font-size: 12px;
            padding: 2px 8px;
            border-radius: 10px;
            margin-left: 10px;
        }
        
        /* 研究领域 */
        .section {
            padding: 60px 0 30px;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        
        .section-title {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }
        
        .section-subtitle {
            font-size: 18px;
            color: var(--gray);
            max-width: 700px;
            margin: 20px auto 0;
            line-height: 1.8;
        }
        
        .research-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .research-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.4s;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .research-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 86, 179, 0.15);
        }
        
        .research-img {
            height: 180px;
            background-color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 60px;
        }
.research-img i{font-size:100px}
        
        .research-content {
            padding: 25px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .research-title {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--primary-dark);
        }
        
        .research-desc {
            color: var(--gray);
            margin-bottom: 20px;
            flex: 1;
        }
        
        .research-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
        }
        
        .research-link:hover {
            color: var(--primary-dark);
        }
        
        .research-link i {
            margin-left: 5px;
            transition: transform 0.3s;
        }
        
        .research-link:hover i {
            transform: translateX(5px);
        }
        
        /* 新闻动态 */
        .news-section {
            background: linear-gradient(135deg, var(--primary-light), #ffffff);
            position: relative;
            overflow: hidden;
            padding: 60px 0;
        }
        
        .news-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(0, 86, 179, 0.05);
        }
        
        .news-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .news-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: all 0.3s;
        }
        
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 86, 179, 0.2);
        }
        
        .news-img {
            height: 200px;
            background-color: var(--primary);
            background-size: cover;
            background-position: center;
        }
        
        .news-content {
            padding: 20px;
        }
        
        .news-date {
            color: var(--primary);
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }
        
        .news-date i {
            margin-right: 5px;
        }
        
        .news-title {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--dark);
        }
        
        .news-title a {
            color: inherit;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .news-title a:hover {
            color: var(--primary);
        }
        
        .news-excerpt {
            color: var(--gray);
            margin-bottom: 15px;
            line-height: 1.6;
        }
        
        .news-more {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
        }

 /* 新闻公告 */
        .news-section1 {
            background-color: #fff;
            position: relative;
            overflow: hidden;
        }
        
        .news-container1 {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
        }
        
        .news-column1 {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
        }
        
        .column-header1 {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--primary-light);
        }
        
        .column-title1 {
            font-size: 24px;
            color: var(--primary);
            display: flex;
            align-items: center;
        }
        
        .column-title1 i {
            margin-right: 10px;
            color: var(--accent);
font-size:24px
        }
        
        .more-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .more-link:hover {
            color: var(--primary-dark);
        }
        
        .news-list1 {
            list-style: none;
        }
        
        .news-item1 {
            display: flex;
            border-bottom: 1px dashed #eee;
margin-top: 15px;
        }
        
        .news-date {
            min-width: 100px;
            color: var(--primary);
            font-weight: 500;
           line-height: 30px;
        }
        
        .news-title {
            flex: 1;
            font-size: 16px;
        }
        
        .news-title a {
            color: var(--dark);
            text-decoration: none;
            transition: all 0.3s;
            display: block;
        }
        
        .news-title a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        
         /* 关于我们 */
        .about-section {
            background: url('../images/about.jpg') no-repeat center center/cover;
            position: relative;
            color: white;
            text-align: center;
        }
        
        .about-overlay {
            background: rgba(0, 30, 80, 0.85);
            padding: 80px 0;
        }
        
        .about-content {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-number {
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 10px;
        }
        
        .stat-label {
            font-size: 18px;
            opacity: 0.9;
        }
        
        
          .btn {
            display: inline-block;
            padding: 12px 30px;
            background: var(--accent);
            color: white;
            text-decoration: none;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s;
            border: 2px solid var(--accent);
        }
        
        .btn:hover {
            background: transparent;
            color: var(--accent);
            transform: translateY(-3px);
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid white;
            margin-left: 15px;
        }
        
        .btn-outline:hover {
            background: white;
            color: var(--primary);
        }
        
        /* 页脚 */
        .footer {
            background: linear-gradient(135deg, var(--primary-dark), #001a4d);
            color: white;
            padding-top: 60px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(161px, 1fr));
            gap: 40px;
        }

        .text-center{text-align: center;}
        
        .footer-column h3 {
            font-size: 20px;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .footer-column h3 a{color:#fff;text-decoration: none;}
        .footer-column h3 a:hover{color:#D4AF37}
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: all 0.3s;
            display: block;
        }
        
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .contact-info {
            margin-top: 20px;
            font-size: 15px;
            line-height: 1.8;
        }
        
        .contact-info i {
            width: 20px;
            color: var(--accent);
            margin-right: 10px;
        }
        
        .copyright {
            text-align: center;
            padding: 25px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
        }

          /* 页面标题 */
        .page-header {
            background: linear-gradient(rgba(26, 75, 140, 0.8), rgba(26, 75, 140, 0.8)), 
                        url('../images/about.jpg') no-repeat center center/cover;
            padding: 100px 0;
            text-align: center;
            color: white;
            margin-bottom: 60px;
        }
        
        .page-header h1 {
            font-size: 48px;
            margin-bottom: 20px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }
        
        .breadcrumb {
            display: flex;
            justify-content: center;
            list-style: none;
            font-size: 16px;
        }
        
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin: 0 15px;
            color: rgba(255, 255, 255, 0.7);
        }
        
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .breadcrumb a:hover {
            color: var(--accent);
        }
        
        .breadcrumb li:last-child {
            color: var(--accent);
            font-weight: 600;
        }
        

.btn-blue{
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}
.btn-blue:hover{
      background: var(--primary);
      color: white;
}


.section-intro {
    font-size: 18px;
    color: var(--gray);
    margin: 20px auto;
    line-height: 1.8;
}

   /* 分页 */
        .pagination {
            display: flex;
            justify-content: center;
            margin-top: 40px;
        }
        .pagination .on {
            background: var(--primary);
            color: white;
        }
        .pagination a {
            display: inline-block;
            width: 40px;
            height: 40px;
            line-height: 40px;
            text-align: center;
            border-radius: 50%;
            margin: 0 5px;
            color: var(--gray);
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .pagination a.active, .pagination a:hover {
            background: var(--primary);
            color: white;
        }

        /* 页面信息文本 */
.pagination .page-info {
    display: inline-block;
    margin-left: 15px;
    font-size: 14px;
    color: #999;
    line-height: 40px;
}

.pagination .page-info strong {
    color: var(--primary);
    margin: 0 3px;
}
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .main-content {
                flex-direction: column;
            }
            
            .slider-container {
                height: 350px;
            }
        }
        
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
            }
            
            .nav-menu {
                margin-top: 15px;
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .search-box {
                margin: 15px 0 0;
                width: 100%;
            }
            
            .search-box input {
                width: 100%;
            }
            
            .section-title {
                font-size: 28px;
            }
            
            .slide-content h2 {
                font-size: 24px;
            }
        }
        
        @media (max-width: 576px) {
            .top-bar-content {
                flex-direction: column;
                align-items: center;
                gap: 8px;
            }
            
            .slide-content {
                padding: 20px;
            }
            
            .slide-content h2 {
                font-size: 20px;
            }
            
            .slide-content p {
                font-size: 14px;
            }
        }