/* ===== 基础重置和变量 ===== */
        :root {
            --primary: #2c5aa0;
            --primary-dark: #1e3f73;
            --secondary: #4CAF50;
            --accent: #FF6B6B;
            --light: #f8f9fa;
            --dark: #333;
            --gray: #666;
            --light-gray: #e9ecef;
            --border-radius: 12px;
            --box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: #fff;
        }
        
        a {
            text-decoration: none !important;
            color: inherit;
            transition: var(--transition);
        }
        
        img {
            max-width: 100%;
            height: auto;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        ol,ul{
            padding-left:0rem !important;    
        }
        
        li{
            list-style-type:none;
        }
        /* ===== 导航栏 ===== */
        .navbar {
            position: fixed !important;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
            z-index: 1000;
            padding: 15px 0;
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .nav-logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
        }
        
        .nav-logo a:hover {
            color: var(--primary-dark);
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        
        .nav-menu a {
            font-weight: 500;
            position: relative;
            padding: 5px 0;
        }
        
        .nav-menu a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s ease;
        }
        
        .nav-menu a:hover:after,
        .nav-menu a.active:after {
            width: 100%;
        }
        
        .nav-menu a.active {
            color: var(--primary);
        }
        
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        
        .hamburger span {
            width: 25px;
            height: 3px;
            background: var(--dark);
            transition: var(--transition);
        }
        
        /* ===== 英雄区域 ===== */
        .hero {
            margin-top:110px ;
            height: 80vh;
            background: linear-gradient(135deg, rgba(44, 90, 160, 0.9), rgba(30, 63, 115, 0.9)),
                        url('https://picsum.photos/1600/900?random=1');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .hero:before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 100px;
            background: linear-gradient(to top, #fff, transparent);
        }
        
        .hero-content {
            max-width: 800px;
            padding: 0 20px;
            animation: fadeInUp 1s ease-out;
            z-index: 1;
        }
        
        .hero h1 {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero p {
            font-size: 20px;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        
        .cta-button {
            display: inline-block;
            padding: 14px 32px;
            background: white;
            color: var(--primary);
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            transition: var(--transition);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
            background: var(--light);
        }
        
        /* ===== 主要内容区域 ===== */
        .main-content {
            padding: 80px 0;
        }
        
        .section {
            margin-bottom: 80px;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .section.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .section-title {
            text-align: center;
            font-size: 32px;
            margin-bottom: 50px;
            color: var(--primary);
            position: relative;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--primary);
        }
        
        /* ===== 网格布局 ===== */
        .news-grid,
        .papers-grid,
        .projects-grid,
        .jobs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }
        
        /* ===== 卡片样式 ===== */
        .news-card,
        .paper-card,
        .project-card,
        .job-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            position: relative;
        }
        
        .news-card:hover,
        .paper-card:hover,
        .project-card:hover,
        .job-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
        }
        
        .card-image {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .news-card:hover .card-image img,
        .paper-card:hover .card-image img,
        .project-card:hover .card-image img,
        .job-card:hover .card-image img {
            transform: scale(1.05);
        }
        
        .card-content {
            padding: 25px;
        }
        
        .news-card h3,
        .paper-card h3,
        .project-card h3,
        .job-card h3 {
            font-size: 20px;
            margin-bottom: 10px;
            color: var(--dark);
            line-height: 1.4;
        }
        
        .news-date,
        .paper-authors,
        .paper-journal,
        .job-department,
        .job-deadline {
            color: var(--gray);
            font-size: 14px;
            margin-bottom: 10px;
        }
        
        .paper-abstract,
        .news-card p,
        .project-card p,
        .job-card p {
            color: var(--gray);
            margin-bottom: 15px;
            line-height: 1.6;
        }
        
        /* ===== 状态标签 ===== */
        .project-status {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .project-status.ongoing {
            background: #FFEAA7;
            color: #E17055;
        }
        
        .project-status.completed {
            background: #D8F5E3;
            color: #2D3436;
        }
        
        /* ===== 页脚 ===== */
        .footer {
            background: #2c3e50;
            color: white;
            padding: 60px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-section h3 {
            font-size: 20px;
            margin-bottom: 20px;
            color: white;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-section h3:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--primary);
        }
        
        .footer-section p,
        .footer-section a {
            color: #bdc3c7;
            margin-bottom: 10px;
            display: block;
        }
        
        .footer-section a:hover {
            color: white;
            transform: translateX(5px);
        }
        
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 15px;
        }
        
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            transition: var(--transition);
        }
        
        .social-links a:hover {
            background: var(--primary);
            transform: translateY(-3px);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #95a5a6;
            font-size: 14px;
        }
        
        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* ===== 响应式设计 ===== */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 42px;
            }
            
            .hero p {
                font-size: 18px;
            }
            
            .news-grid,
            .papers-grid,
            .projects-grid,
            .jobs-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
        }
        
        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
            }
            
            .nav-menu.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            
            .hamburger {
                display: flex;
            }
            
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -6px);
            }
            
            .hero {
                height: 70vh;
                background-attachment: scroll;
            }
            
            .hero h1 {
                font-size: 36px;
            }
            
            .hero p {
                font-size: 16px;
            }
            
            .section-title {
                font-size: 28px;
            }
        }
        
        @media (max-width: 576px) {
            .news-grid,
            .papers-grid,
            .projects-grid,
            .jobs-grid {
                grid-template-columns: 1fr;
            }
            
            .hero h1 {
                font-size: 32px;
            }
            
            .main-content {
                padding: 50px 0;
            }
            
            .section {
                margin-bottom: 50px;
            }
        }
        
        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 10px;
        }
        
        ::-webkit-scrollbar-track {
            background: var(--light-gray);
        }
        
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 5px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }
        
        
        /* ===== 成员网格 ===== */
        .members-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 30px;
        }
        
        .member-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            position: relative;
        }
        
        .member-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
        }
        
        .member-photo {
            height: 320px;
            width: 320px;
            margin:auto;
            overflow: hidden;
            position: relative;
        }
        
        .member-photo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .member-card:hover .member-photo img {
            transform: scale(1.05);
        }
        
        .member-role {
            position: absolute;
            top: 15px;
            left: 15px;
            background: rgba(44, 90, 160, 0.9);
            color: white;
            padding: 5px 12px;
            border-radius: 15px;
            font-size: 12px;
            font-weight: 500;
            backdrop-filter: blur(5px);
        }
        
        .member-info {
            padding: 25px;
        }
        
        .member-info h3 {
            font-size: 20px;
            margin-bottom: 8px;
            color: var(--dark);
        }
        
        .member-title {
            color: var(--primary);
            font-weight: 500;
            margin-bottom: 8px;
            font-size: 14px;
        }
        
        .member-email {
            color: var(--gray);
            font-size: 14px;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .member-research-focus {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(76, 175, 80, 0.1);
            color: var(--secondary);
            border-radius: 12px;
            font-size: 12px;
            font-weight: 500;
            margin-bottom: 15px;
        }
        
        .member-desc {
            color: var(--gray);
            font-size: 14px;
            line-height: 1.6;
        }
        
        .character-limit {
          max-width: 100ch; /* 大约100个字符（英文字符） */
          overflow: hidden;
          text-overflow: ellipsis;
          white-space: nowrap;
        }
        
        
        .multi-line-truncate1 {
          display: -webkit-box; /* 使用弹性盒子布局 */
          -webkit-box-orient: vertical; /* 垂直方向排列 */
          -webkit-line-clamp: 1; /* 限制显示行数 */
          overflow: hidden; /* 隐藏溢出内容 */
          text-overflow: ellipsis; /* 显示省略号 */
        }
        
        .multi-line-truncate2 {
          display: -webkit-box; /* 使用弹性盒子布局 */
          -webkit-box-orient: vertical; /* 垂直方向排列 */
          -webkit-line-clamp: 2; /* 限制显示行数 */
          overflow: hidden; /* 隐藏溢出内容 */
          text-overflow: ellipsis; /* 显示省略号 */
        }
        
        .multi-line-truncate3 {
          display: -webkit-box; /* 使用弹性盒子布局 */
          -webkit-box-orient: vertical; /* 垂直方向排列 */
          -webkit-line-clamp: 3; /* 限制显示行数 */
          overflow: hidden; /* 隐藏溢出内容 */
          text-overflow: ellipsis; /* 显示省略号 */
        }
        
        .multi-line-truncate {
          display: -webkit-box; /* 使用弹性盒子布局 */
          -webkit-box-orient: vertical; /* 垂直方向排列 */
          -webkit-line-clamp: 3; /* 限制显示行数 */
          overflow: hidden; /* 隐藏溢出内容 */
          text-overflow: ellipsis; /* 显示省略号 */
        }
        
        .multi-line-truncate4 {
          display: -webkit-box; /* 使用弹性盒子布局 */
          -webkit-box-orient: vertical; /* 垂直方向排列 */
          -webkit-line-clamp: 4; /* 限制显示行数 */
          overflow: hidden; /* 隐藏溢出内容 */
          text-overflow: ellipsis; /* 显示省略号 */
        }
        
        
        
        
        /* ===== 论文列表 ===== */
        .papers-list {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        
        .paper-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            border-left: 5px solid transparent;
        }
        
        .paper-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
        }
        
        .paper-card.journal {
            border-left-color: var(--primary);
        }
        
        .paper-card.conference {
            border-left-color: var(--secondary);
        }
        
        .paper-card.highly-cited {
            border-left-color: #FFC107;
            position: relative;
            overflow: hidden;
        }
        
        .paper-card.highly-cited:before {
            content: '🔥 高被引';
            position: absolute;
            top: 15px;
            right: -30px;
            background: #FFC107;
            color: #333;
            padding: 5px 35px;
            font-size: 12px;
            font-weight: 600;
            transform: rotate(45deg);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        .paper-header {
            padding: 30px;
            border-bottom: 1px solid var(--light-gray);
        }
        
        .paper-type {
            display: inline-block;
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 15px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .paper-type.journal {
            background: rgba(44, 90, 160, 0.1);
            color: var(--primary);
        }
        
        .paper-type.conference {
            background: rgba(76, 175, 80, 0.1);
            color: var(--secondary);
        }
        
        .paper-title {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 15px;
            line-height: 1.4;
            color: var(--dark);
        }
        
        .paper-authors {
            color: var(--gray);
            font-size: 15px;
            margin-bottom: 10px;
            line-height: 1.6;
        }
        
        .paper-venue {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 500;
            margin-bottom: 10px;
        }
        
        .paper-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px dashed var(--light-gray);
        }
        
        .meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
            font-size: 14px;
            color: var(--gray);
        }
        
        .meta-item i {
            color: var(--primary);
        }
        
        .paper-content {
            padding: 25px 30px;
        }
        
        .paper-abstract {
            color: var(--gray);
            line-height: 1.7;
            margin-bottom: 25px;
            position: relative;
        }
        
        .paper-abstract h4 {
            font-size: 16px;
            color: var(--primary);
            margin-bottom: 10px;
            font-weight: 600;
        }
        
        .paper-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 20px;
            border-top: 1px solid var(--light-gray);
        }
        
        .paper-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--light-gray);
            color: var(--gray);
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
            border: none;
            cursor: pointer;
        }
        
        .paper-btn:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
        }
        
        .paper-btn.primary {
            background: var(--primary);
            color: white;
        }
        
        .paper-btn.primary:hover {
            background: var(--primary-dark);
        }
        
        /* ===== 引用可视化 ===== */
        .citation-visualization {
            background: linear-gradient(135deg, #2c3e50, #4a6491);
            color: white;
            padding: 60px 0;
            border-radius: var(--border-radius);
            margin-bottom: 60px;
            overflow: hidden;
            position: relative;
        }
        
        .citation-visualization:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('https://picsum.photos/1200/300?random=31') center/cover;
            opacity: 0.1;
        }
        
        .visualization-content {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        
        .visualization-content h2 {
            font-size: 32px;
            margin-bottom: 20px;
        }
        
        .citation-chart {
            display: flex;
            align-items: flex-end;
            justify-content: center;
            gap: 20px;
            height: 200px;
            margin-top: 40px;
        }
        
        .citation-bar {
            width: 40px;
            background: linear-gradient(to top, var(--primary), var(--secondary));
            border-radius: 6px 6px 0 0;
            position: relative;
            transition: var(--transition);
            cursor: pointer;
        }
        
        .citation-bar:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }
        
        .citation-year {
            position: absolute;
            bottom: -25px;
            left: 50%;
            transform: translateX(-50%);
            color: rgba(255, 255, 255, 0.8);
            font-size: 12px;
        }
        
        .citation-count {
            position: absolute;
            top: -25px;
            left: 50%;
            transform: translateX(-50%);
            background: white;
            color: var(--primary);
            padding: 3px 8px;
            border-radius: 10px;
            font-size: 12px;
            font-weight: 600;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }
        
        
        
         /* ===== 筛选和搜索 ===== */
        .filters-section {
            padding: 40px 0;
            background: white;
            position: sticky;
            top: 70px;
            z-index: 100;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
        }
        
        .filters-container {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            justify-content: space-between;
        }
        
        .filter-tabs {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        
        .filter-tab {
            padding: 12px 24px;
            background: var(--light-gray);
            color: var(--gray);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 500;
            transition: var(--transition);
        }
        
        .filter-tab:hover,
        .filter-tab.active {
            background: var(--primary);
            color: white;
        }
        
        .search-box {
            position: relative;
            width: 300px;
        }
        
        .search-input {
            width: 100%;
            padding: 12px 45px 12px 20px;
            border: 2px solid var(--light-gray);
            border-radius: 50px;
            font-size: 14px;
            transition: var(--transition);
        }
        
        .search-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
        }
        
        .search-button {
            position: absolute;
            right: 5px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--gray);
            cursor: pointer;
            padding: 8px;
            transition: var(--transition);
        }
        
        .search-button:hover {
            color: var(--primary);
        }
        
        /* ===== 主要内容区域 ===== */
        .main-content {
            padding: 60px 0 80px;
        }
        
        .section {
            margin-bottom: 80px;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .section.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .section-title {
            font-size: 32px;
            margin-bottom: 30px;
            color: var(--primary);
            position: relative;
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .section-title:after {
            content: '';
            flex: 1;
            height: 1px;
            background: var(--light-gray);
        }
        
        /* ===== 页面头部 ===== */
        .page-header {
            margin-top: 110px;
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(44, 90, 160, 0.9), rgba(30, 63, 115, 0.9)),
                        url('https://picsum.photos/1600/400?random=11');
            background-size: cover;
            background-position: center;
            text-align: center;
            color: white;
            position: relative;
        }
        
        .page-header:before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 100px;
            background: linear-gradient(to top, #fff, transparent);
            z-index: 1;
        }
        
        .page-header .container {
            position: relative;
            z-index: 2;
        }
        
        .page-header h1 {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }
        
        .page-header p {
            font-size: 20px;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto;
        }
        
        .pages ul{
            display: flex;
            flex-direction: row;
            gap: 20px;
        }
        
        
        
        .section-title {
            font-size: 2rem; color: var(--primary); margin-bottom: 2.5rem; padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--light-gray);
        }
        .research-area {
            background: white; border-radius: var(--border-radius); padding: 2.5rem;
            box-shadow: var(--box-shadow); margin-bottom: 3rem; border-left: 4px solid var(--primary);
        }
        .area-header { display: flex; align-items: center; margin-bottom: 1.5rem; }
        .area-icon {
            width: 50px; height: 50px; background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 50%; display: flex; align-items: center; justify-content: center;
            margin-right: 1.2rem; color: white; font-size: 1.3rem;
        }
        .area-title { font-size: 1.8rem; color: var(--primary-dark); }
        .area-leader { color: var(--gray); font-size: 0.95rem; margin-top: 0.3rem; }
        .research-content > div { margin-bottom: 2rem; }
        .content-title {
            font-size: 1.3rem; color: var(--primary); margin-bottom: 1rem;
            padding-bottom: 0.5rem; border-bottom: 1px dashed var(--light-gray);
        }
        .research-desc p { color: var(--gray); line-height: 1.8; margin-bottom: 1.2rem; }
        .sub-project { margin-bottom: 1.8rem; }
        .sub-project h4 { color: var(--dark); margin-bottom: 0.5rem; font-size: 1.1rem; }
        .sub-project p { color: var(--gray); font-size: 0.95rem; line-height: 1.6; }
        .topics-list ul { list-style: none; }
        .topics-list li {
            padding: 0.5rem 0; padding-left: 1.8rem; position: relative; color: var(--dark);
            border-bottom: 1px solid var(--light-gray);
        }
        .topics-list li:before {
            content: '•'; position: absolute; left: 0; color: var(--primary); font-size: 1.2rem;
        }
        .publications { background: var(--light); padding: 1.5rem; border-radius: var(--border-radius); }
        .pub-item {
            background: white; padding: 1.2rem; margin-bottom: 1rem; border-radius: var(--border-radius);
            border-left: 3px solid var(--accent);
        }
        .pub-authors { color: var(--gray); font-size: 0.9rem; margin-bottom: 0.3rem; }
        .pub-journal { color: var(--primary); font-weight: 500; font-size: 0.95rem; }
        .pub-year { color: var(--gray); font-size: 0.9rem; }
        
        
        
         .news-filters {
            display: flex; justify-content: center; gap: 0.8rem; margin: 2.5rem 0;
            flex-wrap: wrap;
        }
        .filter-btn {
            padding: 0.7rem 1.5rem; border: 2px solid var(--light-gray); background: white;
            border-radius: 30px; font-weight: 500; color: var(--gray); cursor: pointer;
            transition: var(--transition);
        }
        .filter-btn:hover, .filter-btn.active {
            background: var(--primary); color: white; border-color: var(--primary);
        }
        .news-timeline { position: relative; }
        .news-timeline::before {
            content: ''; position: absolute; left: 100px; top: 0; bottom: 0; width: 2px;
            background: var(--light-gray); z-index: 1;
        }
        .news-item {
            display: flex; margin-bottom: 4rem; position: relative; z-index: 2;
            opacity: 1; transform: translateY(0); transition: opacity 0.5s ease, transform 0.5s ease;
        }
        .news-item.hidden { opacity: 0; transform: translateY(20px); display: none; }
        .news-date {
            width: 100px; flex-shrink: 0; text-align: center; position: relative;
        }
        .date-day {
            display: block; font-size: 2.5rem; font-weight: 700; color: var(--primary);
            line-height: 1;
        }
        .date-month {
            display: block; font-size: 1rem; color: var(--gray); margin-top: 0.3rem;
            text-transform: uppercase; font-weight: 500;
        }
        .date-year {
            display: block; font-size: 0.9rem; color: var(--gray); margin-top: 0.2rem;
        }
        .news-date::after {
            content: ''; position: absolute; right: -8px; top: 15px; width: 14px;
            height: 14px; background: white; border: 3px solid var(--primary);
            border-radius: 50%; z-index: 3;
        }
        .news-content {
            flex: 1; background: white; border-radius: var(--border-radius); padding: 2rem;
            margin-left: 3rem; box-shadow: var(--box-shadow); border: 1px solid var(--light-gray);
            transition: var(--transition);
        }
        .news-item:hover .news-content { box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12); }
        .news-header {
            display: flex; justify-content: space-between; align-items: flex-start;
            margin-bottom: 1.5rem; flex-wrap: wrap; gap: 1rem;
        }
        .news-header h3 { font-size: 1.5rem; color: var(--primary-dark); flex: 1; min-width: 300px; }
        .news-tag {
            padding: 0.4rem 1rem; border-radius: 30px; font-size: 0.85rem;
            font-weight: 600; text-transform: uppercase;
        }
        .tag-achievement { background: #e7f3ff; color: #007bff; }
        .tag-member { background: #fff8e1; color: #ff9800; }
        .tag-funding { background: #e9f7ef; color: #28a745; }
        .tag-visit { background: #f0e6ff; color: #6f42c1; }
        .tag-activity { background: #ffeaea; color: #dc3545; }
        .news-body p { color: var(--gray); line-height: 1.7; margin-bottom: 1.2rem; }
        .news-image {
            margin: 1.5rem 0; border-radius: var(--border-radius); overflow: hidden;
            max-width: 400px;
        }
        .news-image img {
            width: 100%; height: auto; display: block; transition: transform 0.5s ease;
        }
        .news-item:hover .news-image img { transform: scale(1.03); }
        .news-gallery {
            display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem; margin: 1.5rem 0;
        }
        .news-gallery img {
            width: 100%; height: 120px; object-fit: cover; border-radius: 8px;
            cursor: pointer; transition: var(--transition);
        }
        .news-gallery img:hover { transform: scale(1.05); }
        .news-footer {
            margin-top: 1.8rem; padding-top: 1.5rem; border-top: 1px dashed var(--light-gray);
            display: flex; gap: 1.5rem; flex-wrap: wrap;
        }
        .news-footer a {
            color: var(--primary); font-weight: 500; text-decoration: none;
            display: inline-flex; align-items: center; gap: 0.5rem;
            transition: var(--transition);
        }
        .news-footer a:hover { color: var(--primary-dark); gap: 0.8rem; }
        .pagination {
            display: flex; justify-content: center; align-items: center; gap: 0.5rem;
            margin-top: 3rem; flex-wrap: wrap;
        }
        .page-btn {
            padding: 0.7rem 1.2rem; border: 2px solid var(--light-gray); background: white;
            border-radius: 8px; font-weight: 500; color: var(--gray); cursor: pointer;
            transition: var(--transition); min-width: 45px;
        }
        .page-btn:hover:not(.disabled):not(.active) {
            border-color: var(--primary); color: var(--primary);
        }
        .page-btn.active {
            background: var(--primary); color: white; border-color: var(--primary);
        }
        .page-btn.disabled {
            opacity: 0.5; cursor: not-allowed;
        }
        .newsletter-section {
            background: linear-gradient(135deg, #f8f9fa, #e9ecef); padding: 3.5rem;
            border-radius: var(--border-radius); margin-top: 4rem;
        }
        .newsletter-content { text-align: center; max-width: 600px; margin: 0 auto; }
        .newsletter-content h2 { color: var(--primary); margin-bottom: 1rem; }
        .newsletter-content > p { color: var(--gray); margin-bottom: 2rem; }
        .newsletter-form {
            display: flex; gap: 1rem; max-width: 400px; margin: 0 auto 1.5rem;
        }
        .newsletter-form input {
            flex: 1; padding: 0.9rem 1.2rem; border: 2px solid var(--light-gray);
            border-radius: 30px; font-size: 1rem; outline: none;
            transition: var(--transition);
        }
        .newsletter-form input:focus { border-color: var(--primary); }
        .newsletter-form .btn {
            padding: 0.9rem 2rem; background: var(--primary); color: white;
            border: none; border-radius: 30px; font-weight: 500; cursor: pointer;
            transition: var(--transition);
        }
        .newsletter-form .btn:hover { background: var(--primary-dark); transform: translateY(-2px); }
        .newsletter-note {
            font-size: 0.9rem; color: var(--gray); opacity: 0.8;
        }
        
        
        
        
        
        .fa-regular,.far {
            font-family: "Font Awesome 6 Free";
            font-weight: 400
        }
        .page-meta {
            display: flex; justify-content: center; align-items: center; gap: 2rem;
            flex-wrap: wrap; margin-top: 1.5rem;
        }
        .meta-item { display: flex; align-items: center; gap: 0.5rem; color: rgba(255, 255, 255, 0.9);font-size:1.2rem;}
        .news-tag {
            padding: 0.4rem 1rem; border-radius: 30px; font-size: 0.85rem;
            font-weight: 600; text-transform: uppercase;
        }
        .tag-achievement { background: #e7f3ff; color: #007bff; }
        .main-content { padding: 3rem 0; }
        .news-detail-container {
            display: grid; grid-template-columns: 1fr 300px; gap: 3rem;
        }
        @media (max-width: 992px) {
            .news-detail-container { grid-template-columns: 1fr; }
        }
        .news-content {
            background: white; border-radius: var(--border-radius); padding: 2.5rem;
            box-shadow: var(--box-shadow); border: 1px solid var(--light-gray);
        }
        .news-featured-image {
            width: 100%; border-radius: var(--border-radius); margin-bottom: 2rem;
            overflow: hidden;
        }
        .news-featured-image img {
            width: 100%; height: auto; display: block; transition: transform 0.5s ease;
        }
        .news-featured-image:hover img { transform: scale(1.03); }
        .news-body h2 {
            font-size: 1.8rem; color: var(--primary-dark); margin: 2rem 0 1rem;
            padding-bottom: 0.5rem; border-bottom: 2px solid var(--light-gray);
        }
        .news-body h3 {
            font-size: 1.4rem; color: var(--primary-dark); margin: 1.5rem 0 1rem;
        }
        .news-body p {
            margin-bottom: 1.5rem; font-size: 1.05rem; line-height: 1.8;
            color: var(--gray);
        }
        .news-body blockquote {
            border-left: 4px solid var(--primary); padding-left: 1.5rem;
            margin: 2rem 0; font-style: italic; color: var(--gray);
            background: #f8f9fa; padding: 1.5rem; border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .news-body ul, .news-body ol {
            margin: 1.5rem 0 1.5rem 2rem; color: var(--gray);
        }
        .news-body li { margin-bottom: 0.8rem; }
        .research-highlights {
            background: linear-gradient(135deg, #f8f9fa, #e9ecef);
            border-radius: var(--border-radius); padding: 2rem; margin: 2.5rem 0;
        }
        .research-highlights h3 { color: var(--primary); margin-top: 0; }
        .highlight-item {
            display: flex; gap: 1rem; margin-bottom: 1.5rem;
            padding-bottom: 1.5rem; border-bottom: 1px dashed #ddd;
        }
        .highlight-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
        .highlight-icon {
            width: 40px; height: 40px; background: var(--primary); color: white;
            border-radius: 50%; display: flex; align-items: center; justify-content: center;
            flex-shrink: 0;
        }
        .highlight-content h4 { margin-bottom: 0.5rem; color: var(--primary-dark); }
        .figure-container {
            margin: 2.5rem 0; text-align: center;
        }
        .figure-container img {
            max-width: 100%; height: auto; border-radius: var(--border-radius);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .figure-caption {
            font-size: 0.9rem; color: var(--gray); margin-top: 0.8rem;
            font-style: italic;
        }
        .news-sidebar {
            position: sticky; top: 90px; height: fit-content;
        }
        .sidebar-card {
            background: white; border-radius: var(--border-radius); padding: 1.8rem;
            margin-bottom: 2rem; box-shadow: var(--box-shadow);
            border: 1px solid var(--light-gray);
        }
        .sidebar-card h3 {
            font-size: 1.3rem; color: var(--primary); margin-bottom: 1.5rem;
            padding-bottom: 0.8rem; border-bottom: 2px solid var(--light-gray);
        }
        .author-info {
            display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem;
        }
        .author-avatar {
            width: 60px; height: 60px; border-radius: 50%; object-fit: cover;
            border: 3px solid var(--light-gray);
        }
        .author-details h4 { margin-bottom: 0.3rem; }
        .author-details p { font-size: 0.9rem; color: var(--gray); }
        .related-links a {
            display: flex; align-items: center; justify-content: space-between;
            padding: 1rem 0; border-bottom: 1px solid var(--light-gray);
            color: var(--dark); text-decoration: none; transition: var(--transition);
        }
        .related-links a:hover { color: var(--primary); padding-left: 0.5rem; }
        .related-links a:last-child { border-bottom: none; }
        .share-buttons {
            display: flex; gap: 1rem; margin-top: 1.5rem;
        }
        .share-btn {
            flex: 1; padding: 0.8rem; border: none; border-radius: var(--border-radius);
            font-weight: 500; cursor: pointer; transition: var(--transition);
            display: flex; align-items: center; justify-content: center; gap: 0.5rem;
        }
        .share-wechat { background: #09bb07; color: white; }
        .share-linkedin { background: #0077b5; color: white; }
        .share-email { background: var(--primary); color: white; }
        .share-btn:hover { transform: translateY(-3px); box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
        .news-footer {
            margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--light-gray);
            display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1.5rem;
        }
        .prev-next-links {
            display: flex; justify-content: space-between; width: 100%;
            margin-top: 2rem;
        }
        .nav-link {
            display: flex; align-items: center; gap: 1rem; padding: 1rem 1.5rem;
            background: white; border-radius: var(--border-radius); text-decoration: none;
            color: var(--dark); border: 1px solid var(--light-gray); transition: var(--transition);
            max-width: 48%;
        }
        .nav-link:hover {
            border-color: var(--primary); color: var(--primary);
            transform: translateY(-3px); box-shadow: var(--box-shadow);
        }
        .nav-link-prev { text-align: left; }
        .nav-link-next { text-align: right; }
        .nav-link i { font-size: 1.2rem; }
        .related-news-section {
            margin: 4rem 0;
        }
        .related-news-grid {
            display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 2rem; margin-top: 2rem;
        }
        .related-news-card {
            background: white; border-radius: var(--border-radius); overflow: hidden;
            box-shadow: var(--box-shadow); transition: var(--transition);
            border: 1px solid var(--light-gray);
        }
        .related-news-card:hover {
            transform: translateY(-10px); box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .related-news-img {
            width: 100%; height: 200px; object-fit: cover;
        }
        .related-news-content {
            padding: 1.5rem;
        }
        .related-news-content h4 {
            font-size: 1.2rem; margin-bottom: 0.8rem; color: var(--primary-dark);
        }
        .related-news-content p {
            font-size: 0.95rem; color: var(--gray); margin-bottom: 1rem;
        }
        .related-news-date {
            font-size: 0.85rem; color: var(--gray); display: flex; align-items: center; gap: 0.5rem;
        }
        
        
        
        .project-card {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            border: 1px solid #eee;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .project-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .project-image {
            height: 180px;
            width: 100%;
            object-fit: cover;
            display: block;
            border-bottom: 1px solid #eee;
        }
        
        .project-content {
            padding: 20px;
        }
        
        .project-title {
            font-size: 1.4rem;
            color: #2c3e50;
            margin-bottom: 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .project-stars {
            color: #f39c12;
            font-size: 1rem;
        }
        
        .project-description {
            color: #7f8c8d;
            margin-bottom: 20px;
            font-size: 0.95rem;
            line-height: 1.5;
        }
        
        .project-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 15px;
        }
        
        .project-tag {
            padding: 5px 12px;
            background-color: #f0f7ff;
            border-radius: 20px;
            font-size: 0.8rem;
            color: #3498db;
            border: 1px solid #d6eaf8;
        }
        
        .project-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 15px;
            border-top: 1px solid #eee;
        }
        
        .project-lang {
            display: flex;
            align-items: center;
            gap: 5px;
            font-size: 0.9rem;
            color: #7f8c8d;
        }
        
        .lang-color {
            width: 12px;
            height: 12px;
            border-radius: 50%;
        }
        
        .project-link {
            color: #3498db;
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            transition: color 0.2s;
        }
        
        .project-link:hover {
            color: #2980b9;
            text-decoration: underline;
        }